CN219173980U

CN219173980U - Goods lift safety pin mounting structure

Info

Publication number: CN219173980U
Application number: CN202320006906.9U
Authority: CN
Inventors: 纪少磊; 李少伟; 李少华
Original assignee: Hebei Hongxi Elevator Co ltd
Current assignee: Hebei Hongxi Elevator Co ltd
Priority date: 2023-01-03
Filing date: 2023-01-03
Publication date: 2023-06-13
Anticipated expiration: 2033-01-03

Abstract

The utility model provides a goods elevator safety pin mounting structure, which belongs to the technical field of elevator equipment and comprises a protective shell, a safety pin and a driving cylinder. The protective shell is detachably arranged at the top of the car, and one side of the protective shell facing the car is provided with a containing cavity; the safety pin is slidably arranged in the accommodating cavity, and a guide through hole which is slidably matched with the safety pin is formed in the side wall of the protective shell; the driving cylinder is fixedly arranged in the accommodating cavity and used for driving the safety pin to reciprocate along the length direction of the safety pin. According to the goods elevator safety pin mounting structure, the protection shell plays a role in protecting the safety pin and the driving cylinder, the safety pin is prevented from being exposed, collision to the safety pin is prevented, and the service life of the safety pin is effectively prolonged.

Description

Goods lift safety pin mounting structure

Technical Field

The utility model belongs to the technical field of elevator equipment, and particularly relates to a safety pin mounting structure of a goods elevator.

Background

In the process of overhauling a goods elevator, a lift car is generally locked on a guide rail of the goods elevator. The safety pin is usually arranged on the outer side wall of the lift car, a limit jack matched with the safety pin is arranged on a guide rail of the goods lift, and the safety pin is inserted into the limit jack, so that the lift car is locked. Because the safety pin is positioned outside the car, the safety pin is exposed to easily cause collision, and the service life of the safety pin is greatly reduced.

Disclosure of Invention

The utility model aims to provide a safety pin mounting structure of a goods elevator, which aims to solve the problem that the existing safety pin on the car of the goods elevator is exposed and is easy to collide.

In order to achieve the above purpose, the utility model adopts the following technical scheme: provided is a safety pin mounting structure of a cargo lift, comprising:

the protection shell is detachably arranged at the top of the car, and a containing cavity is formed in one side, facing the car, of the protection shell;

the safety pin is slidably arranged in the accommodating cavity, and a guide through hole which is slidably matched with the safety pin is formed in the side wall of the protective shell; and

and the driving cylinder is fixedly arranged in the accommodating cavity and used for driving the safety pin to reciprocate along the length direction of the safety pin.

In one possible implementation, a bushing is mounted in the guide through hole, the bushing being in sliding engagement with the shear pin.

In one possible implementation, the bushing is an interference fit with the guide through hole.

In one possible implementation, the end of the shear pin remote from the drive cylinder is fitted with a flexible head.

In one possible implementation, the flexible head is connected to the safety pin by a screw.

In one possible implementation manner, the safety pin is connected with the telescopic rod of the driving cylinder through a sleeve, and two ends of the sleeve are respectively sleeved on the safety pin and the telescopic rod.

In one possible implementation, the sleeve is fixedly connected with the safety pin through a bolt.

In one possible implementation, the sleeve is fixedly connected with the telescopic rod through a jackscrew.

In one possible implementation, the protective housing is connected to the car by a bolt, and a bolt via for mounting the bolt is provided at the top of the protective housing.

In one possible implementation, the bolt via is a oblong hole.

Compared with the prior art, the cargo lift safety pin mounting structure has the advantages that the protection shell is mounted on the top of the car, the protection shell is provided with the accommodating cavity towards one side of the car, the safety pin and the driving air cylinder are both located in the accommodating cavity, the guide through holes which are in sliding fit with the safety pin are formed in the side wall of the protection shell, and the driving air cylinder is used for driving the safety pin to reciprocate along the length direction of the safety pin, so that the safety pin can be automatically inserted into the limit jack on the guide rail. The protective shell plays a protective role on the safety pin and the driving cylinder, so that the safety pin is prevented from being exposed, the safety pin is prevented from being bumped, and the service life of the safety pin is effectively prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic cross-sectional view of a safety pin mounting structure for a cargo lift according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view at B in FIG. 1;

fig. 4 is a top view of a protective housing according to an embodiment of the present utility model.

In the figure: 1. a protective housing; 101. a receiving chamber; 102. a guide through hole; 103. a bushing; 104. a bolt; 105. bolt through holes; 2. a safety pin; 201. a flexible head; 202. a screw; 203. a sleeve; 204. a plug pin; 205. a first pin hole; 206. a second pin hole; 207. a jackscrew; 3. a driving cylinder; 301. a telescopic rod; 4. and a car.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 3, an installation structure of a safety pin 2 of a cargo lift according to the present utility model will be described. The goods lift safety pin 2 mounting structure includes: a protective housing 1, a safety pin 2 and a driving cylinder 3. The protective shell 1 is detachably arranged at the top of the car 4, and a containing cavity 101 is arranged at one side of the protective shell 1 facing the car 4; the safety pin 2 is slidably arranged in the accommodating cavity 101, and a guide through hole 102 which is slidably matched with the safety pin 2 is formed in the side wall of the protective shell 1; the driving cylinder 3 is fixedly installed in the accommodating chamber 101 for driving the shear pin 2 to reciprocate along the length direction thereof.

Compared with the prior art, the cargo lift safety pin 2 mounting structure provided by the embodiment has the advantages that the protection shell 1 is mounted at the top of the car 4, the protection shell 1 is provided with the accommodating cavity 101 towards one side of the car 4, the safety pin 2 and the driving cylinder 3 are both located in the accommodating cavity 101, the guide through hole 102 which is in sliding fit with the safety pin 2 is formed in the side wall of the protection shell 1, the driving cylinder 3 is used for driving the safety pin 2 to reciprocate along the length direction of the safety pin 2, and accordingly the safety pin 2 can be automatically inserted into the limit jack on the guide rail. The protection shell 1 plays a role in protecting the safety pin 2 and the driving cylinder 3, so that the safety pin 2 is prevented from being exposed, the safety pin 2 is prevented from being bumped, and the service life of the safety pin 2 is effectively prolonged.

In some embodiments, referring to fig. 3, a bushing 103 is mounted in the guide through hole 102, and the bushing 103 is slidably engaged with the shear pin 2. In this embodiment, the bushing 103 is made of wear-resistant material, and the bushing 103 and the protection housing 1 are in a split structure. The safety pin 2 is liable to cause wear to the protective housing 1 during the reciprocating movement. In order to extend the service life of the protective housing 1, a bushing 103 is fitted in the guide through hole 102, the inner bore of the bushing 103 being matched with the safety pin 2. The safety pin 2 only wears the bushing 103, and only the bushing 103 needs to be replaced during maintenance, so that the whole protective shell 1 does not need to be replaced, and the maintenance cost is greatly reduced.

In some embodiments, bushing 103 is an interference fit with guide through hole 102. In this embodiment, the bushing 103 and the guide through hole 102 are mounted in an interference fit manner, so that other connecting pieces are not needed, and the number of parts is greatly reduced.

In some embodiments, referring to fig. 3, the end of the shear pin 2 remote from the drive cylinder 3 is fitted with a flexible head 201. In this embodiment, the flexible head 201 is made of rubber and has a certain elasticity. The flexible head 201 is installed at the end of the safety pin 2 far from the driving cylinder 3, so that the safety pin 2 can be prevented from rigidly colliding with the guide rail of the goods lift.

In some embodiments, referring to fig. 3, the flexible head 201 is connected to the shear pin 2 by a screw 202. In this embodiment, a counter bore for installing the screw 202 is formed in the outer side wall of the flexible head 201, and the depth dimension of the counter bore is greater than the nut thickness of the screw 202, so that the screw 202 is prevented from protruding out of the flexible head 201. The screw 202 is located in the center of the shear pin 2 and is arranged coaxially with the shear pin 2.

In some embodiments, referring to fig. 1 and 2, the shear pin 2 is connected to the telescopic rod 301 of the driving cylinder 3 through the sleeve 203, and two ends of the sleeve 203 are respectively sleeved on the shear pin 2 and the telescopic rod 301. In this embodiment, the diameter of the shear pin 2 may be the same as or different from the diameter of the telescopic rod 301, and the inner hole of the sleeve 203 is matched with the shear pin 2 and the telescopic rod 301, respectively. When the diameter of the shear pin 2 is different from the diameter of the telescopic rod 301, the inner bore of the sleeve 203 is a stepped bore.

In some embodiments, referring to fig. 2, the sleeve 203 is fixedly connected to the safety pin 2 through a bolt 204. In this embodiment, the sleeve 203 and the shear pin 2 are provided with a first pin hole 205 and a second pin hole 206 for mounting the plug 204, respectively. The plug 204 is used for limiting the freedom of axial movement of the sleeve 203 and the shear pin 2, so as to realize locking fixation of the sleeve 203 and the shear pin 2.

In some embodiments, referring to fig. 2, the sleeve 203 is fixedly connected to the telescopic rod 301 by a jackscrew 207. In this embodiment, the outer wall of the sleeve 203 is provided with a threaded hole for mounting the jackscrew 207. By screwing the jackscrew 207, the jackscrew 207 is abutted against the outer side wall of the telescopic rod 301, so that locking and fixing of the sleeve 203 and the telescopic rod 301 are realized, and relative displacement between the sleeve 203 and the telescopic rod 301 is prevented. The sleeve 203 and the telescopic rod 301 are connected by the jackscrew 207, so that the telescopic rod 301 does not need to be processed, and the processing cost is reduced.

In some embodiments, referring to fig. 1 and 4, the protective housing 1 is connected to the car 4 by bolts 104, and bolt through holes 105 for mounting the bolts 104 are provided at the top of the protective housing 1. In this embodiment, the protection casing 1 and the car 4 are connected by bolts 104, and the structure is simple, and the assembly and the disassembly are convenient. Four bolt through holes 105 are formed in the protective shell 1, and the number of bolts 104 is consistent with that of the bolt through holes 105. The bolts 104 are offset from the shear pins 2 and the drive cylinders 3.

In some embodiments, referring to fig. 4, the bolt via 105 is an oblong hole. In this embodiment, the bolt via hole 105 is a slotted hole, so that the installation position of the protective housing 1 can be conveniently adjusted.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A cargo lift safety pin mounting structure, comprising:

2. A lift pin mounting structure according to claim 1, wherein a bush is mounted in said guide through hole, said bush being slidably fitted with said pin.

3. A landing safety pin mounting structure as claimed in claim 2, wherein the bushing is an interference fit with the guide through hole.

4. A lift pin mounting structure according to claim 1, wherein the end of the pin remote from the drive cylinder is provided with a flexible head.

5. A lift pin mounting structure according to claim 4, wherein said flexible head is screwed to said pin.

6. The cargo lift safety pin mounting structure according to claim 1, wherein the safety pin is connected with the telescopic rod of the driving cylinder through a sleeve, and two ends of the sleeve are respectively sleeved on the safety pin and the telescopic rod.

7. A lift pin mounting structure according to claim 6, wherein said sleeve is fixedly connected to said pin by a pin.

8. A lift pin mounting structure according to claim 6, wherein said sleeve is fixedly connected to said telescoping rod by a jack screw.

9. The cargo lift safety pin mounting structure according to claim 1, wherein the protective housing is connected to the car by a bolt, and a bolt through hole for mounting the bolt is formed in the top of the protective housing.

10. A landing safety pin mounting structure as claimed in claim 9, wherein the bolt through hole is a slotted hole.