# US 11,898,793 B2 · Vertical displacement stopping system

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- Number: US 11,898,793 B2
- Document ID: US11898793B2
- Status: Granted
- Kind: B2
- Application number: 17/641,420
- Filed: 2020-05-06
- Published: 2022-09-22
- Granted: 2024-02-13
- Earliest claimed: 2020-03-20
- Assignees: Wuxi Haidaer Precision Slides Co., Ltd
- Applicants: Wuxi Haidaer Precision Slides Co., Ltd
- Inventors: Xinglong Xu; Haiwen Zhang; Lian Zou; Kai Dai; Feng Qian; Qiang Ji
- Web page: https://patentgrep.com/patent/US11898793B2

## CPC

- F25D 25/025: {Drawers}
- F25D 25/04: by conveyors (in general B65G)
- F25D 11/00: Self-contained movable devices, e.g. domestic refrigerators
- F25D 23/04: with special compartments, e.g. butter conditioners
- F25D 25/02: by shelves
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)

## Abstract

A vertical displacement stopping system includes a sliding guide mechanism, a locking mechanism and a bearing mechanism. The locking mechanism, having positioning holes, includes positioning pins, telescopic mechanisms, and a handle located at a front portion of the bearing mechanism, wherein the handle is connected with the positioning pins through transmission parts, respectively. Each of the telescopic mechanisms includes a housing having a chamber, a movable block located within the chamber, and a reset spring located between a top portion of the movable block and the housing, wherein each of the transmission parts is connected with each of the positioning pins through the movable block.

## Claims

### Claim 1

A vertical displacement stopping system, comprising a sliding guide mechanism, a locking mechanism and a bearing mechanism, wherein:
the locking mechanism, having positioning holes, comprises positioning pins, telescopic mechanisms, and a handle located at a front portion of the bearing mechanism, wherein the handle is connected with the positioning pins through transmission parts, respectively; each of the telescopic mechanisms comprises a housing having a chamber, a movable block located within the chamber, and a reset spring located between a top portion of the movable block and the housing, wherein each of the transmission parts is connected with each of the positioning pins through the movable block;
the handle is slidably connected with a bottom of the bearing mechanism, the housing is located at a bottom end of the bearing mechanism, each of the housing and the bearing mechanism has a through-hole for allowing the each of the positioning pins to pass through;
the movable block is connected with a guide rod, the reset spring is sleeved outside the guide rod, the housing has another through-hole for allowing the guide rod to pass through;
the sliding guide mechanism comprises moving rails and fixed rails, wherein the moving rails are connected with the bearing mechanism;
the bearing mechanism comprises a support part which is connected with the fixed rails and a bearing device for accommodating an object;
T-shaped connectors are provided at two sides of an end of the bearing device; each of the T-shaped connectors comprises a clamping arm protruding from the end of the bearing device and a connecting arm located at a front end of the clamping arm;
the support part has multiple mounting holes at two sides thereof; each of the mounting holes comprises a penetration hole, a connection hole and a clamping hole, wherein a length of the penetration hole is larger than or equal to a length of the clamping arm, a total length of the connection hole and the clamping hole is larger than or equal to a length of the connecting arm, and smaller than the length of the clamping arm.

### Claim 2 (depends on 1)

The vertical displacement stopping system according to claim 1, further comprising an auxiliary mechanism which comprises a support seat located on a box, a rotation shaft is rotatably connected with the support seat, the rotation shaft is connected with the bearing mechanism through a constant force spring.

### Claim 3 (depends on 2)

The vertical displacement stopping system according to claim 2, further comprising a buffer mechanism which comprises a rack located on the box, a gear engaged with the rack, and a bidirectional rotary buffer located on the bearing mechanism.