CN220011773U - Quick-assembly type sealing rear cover for anti-falling safety device - Google Patents

Abstract

The utility model discloses a quick-assembly type sealing rear cover for an anti-falling safety device, which relates to the technical field of anti-falling safety device components. The utility model has the effects of simplifying the assembly steps of the safety device, improving the assembly efficiency, reducing the number of parts of the safety device, lightening the whole weight of the safety device, improving the tightness of the safety device and protecting the IP level; the sealing performance between the rear cover and the housing after assembly can be improved.

Description

Quick-assembly type sealing rear cover for anti-falling safety device

Technical Field

The utility model relates to the technical field of safety device components, in particular to a quick-assembly type sealing rear cover for a safety device.

Background

The anti-falling safety device is the most important safety device in the construction elevator, and along with the development of the construction machinery technology, a user also puts forward higher requirements on the anti-falling safety device.

The shell component of the anti-falling safety device mainly comprises a shell, a rear cover arranged at one end of the shell and a cover plate arranged at the other end of the shell. The rear cover is usually installed on the shell in a detachable connection mode, so that the disassembly, assembly and maintenance of workers are facilitated. In the prior art, one connecting mode between the rear cover and the shell is to lock and fix the rear cover on the shell by adopting an external fastener, as disclosed in patent grant publication No. CN203411197U, the rear cover is fixedly connected with the shell by adopting a bolt as known from the disclosed drawing. Although the method can realize the fixed connection between the rear cover and the shell, parts are required to be added to realize the connection, so that the number of parts of the anti-falling safety device can be increased, the assembly steps are more, and the assembly efficiency is low. Still another connection mode is to use the rear cover as a top end torsion cover, and the top end torsion cover is directly and fixedly connected to the shell in a knob mode, such as a fall-preventing safety device of CN203767787U disclosed in patent grant publication number. Although this method does not require additional external parts to assist in the installation, the connection between the rear cover and the case is not sealed. Based on the problems, the utility model provides a quick-assembly type sealing rear cover for an anti-falling safety device.

Disclosure of Invention

Aiming at the problem in practical application, the utility model aims to provide a quick-assembly type sealing rear cover for an anti-falling safety device, which comprises the following specific scheme:

a quick-assembling type sealed back cover for anti-falling safety device is installed on anti-falling safety device casing tip, sealed back cover through its outer wall be disposed, with its outer wall looks elastic seal circle of overlapping be connected in on the casing tip.

Further, a groove corresponding to the elastic sealing ring is arranged at the position, corresponding to the elastic sealing ring, of the inner wall of the tail part of the shell body.

Further, the elastic sealing ring is an O-shaped ring.

Further, the center of the sealing rear cover is provided with a protruding structure extending towards the direction far away from the shell, and the protruding structure is any one of round, triangular, hexagonal and prolate.

Further, the sealing rear cover is made of any one of metal, nylon and plastic.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the rear cover is assembled quickly by adopting the mode that the elastic sealing ring is arranged on the rear cover and matched with the groove on the inner wall of the shell, so that the rear cover structure which can be assembled on the shell in a pressing mode is provided, and the sealing effect can be achieved while the quick assembly is satisfied.

The technical scheme provided by the utility model has the following effects: the assembly steps of the safety device can be simplified, the assembly efficiency is improved, the number of parts of the safety device is reduced, the whole weight of the safety device is lightened, and the tightness and the protection IP level of the safety device are improved; and the tightness between the assembled rear cover and the shell can be improved.

Drawings

FIG. 1 is a cross-sectional view of a quick-fit, sealed rear cover of a fall arrestor of the present utility model (showing the inclusion of an external monolith of the fall arrestor);

fig. 2 is a side view of the sealed back cover of the present utility model.

Reference numerals: 1. sealing the rear cover; 11. a cover plate; 12. a connecting ring; 2. baffle plate screws; 3. an elastic sealing ring; 4. a shaft end baffle; 5. loading a nut; 6. a housing; 7. an end cap; 8. a tooth shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

The fall arrester comprises a shell 6, a sealed rear cover 1, an end cover 7, a gear shaft 8 and other arrester components. Other safety components such as the baffle screw 2, shaft end baffle 4, load nut 5, anti-rotation ring, etc.

The quick-assembly rear cover is an indispensable part of the fall-preventing safety device as a closing component assembled at one end of the shell 6. Based on the defect that the mode of adopting a fastener or a torsion cover to realize the fixed connection between the rear cover and the shell 6 in the prior art, the utility model provides a novel rear cover structure for realizing the fixed connection between the rear cover and the shell 6.

As shown in fig. 1-2, a quick-assembly type sealing rear cover for a fall arrester is mounted on a small end of a fall arrester housing 6, and the sealing rear cover 1 is fixedly connected to the small end of the housing 6 through an elastic sealing ring 3 which is arranged on the outer wall and is sleeved with the outer wall. Specifically, a groove corresponding to the elastic sealing ring 3 is arranged at the position of the inner wall of the tail part of the shell 6 corresponding to the elastic sealing ring 3 on the sealing rear cover 1. During installation, the rear cover is pressed into the shell 6, and the elastic sealing ring 3 is embedded into the groove along with the deep pressing, so that the connection effect between the rear cover and the shell 6 can be realized and the sealing effect can be realized between the rear cover and the shell 6 based on the elasticity and the sealing performance of the elastic sealing ring 3. Therefore, when the rear cover is assembled, the rear cover is not only connected by means of fasteners such as screws, but also the connection tightness between the rear cover and the shell 6 can be improved by means of the characteristics of the elastic sealing ring 3, that is, the number of parts of the anti-falling safety device is reduced, the assembly steps of the safety device and the use times of an assembly tool are also reduced, the assembly efficiency of the safety device is improved, and the connection tightness of the safety device and the shell 6 is ensured.

Preferably, the elastic sealing ring 3 is an O-ring. And it should be noted that other sealing rings or gaskets that can function as a connection seal may be used for the elastic sealing ring 3.

Still more specifically, the sealing rear cover 1 includes a cover plate 11 and a connecting ring 12 at an end of the cover plate 11, the elastic sealing ring 3 being circumferentially disposed along an outer wall of the connecting ring 12, the outer wall of the cover plate 11 protruding from the outer wall of the cover plate 11 in a radial direction so that the protruding portion of the cover plate 11 forms a restricting portion. During connection, the elastic sealing ring 3 on the connecting ring 12 is matched with the groove formed in the shell 6, so that the whole rear cover is fixedly connected with the shell 6. The limiting part is used for limiting the maximum pressing distance of the rear cover, and judging whether the rear cover is pressed in place according to whether the limiting part on the connecting ring 12 is pressed to be in contact with the small end face of the shell 6, so that the rear cover is installed in place, and the stability and reliability of the rear cover after the rear cover is installed are ensured.

Compared with the prior art that the rear cover is a torsion cover and the internal thread of the inner wall of the torsion cover is matched with the external thread of the shell 6 to realize the fixed connection of the torsion cover and the shell 6, the fixed connection mode of the utility model provides a new structure to achieve the aim of pressing and mounting, and the mode of judging whether the rear cover is assembled in place in the prior art is that a stepped limiting structure is additionally arranged outside the shell 6, that is, the prior art scheme needs to add the structure during the processing of the shell 6 to help judge whether the rear cover is mounted in place during the assembly, which leads to complex processing procedure of the shell 6.

The center of the sealing rear cover 1 is provided with a protruding structure extending towards the direction far away from the shell 6, and the shape of the protruding structure is any one of round, triangle, hexagon and prolate. Of course, the shape may be other common shapes. The setting of protruding structure presses through the hand in the time of the easy to assemble. In addition, the protruding structure of the rear cover reserves enough space for parts such as a baffle spiral ring, a shaft end baffle 4, a loading nut 5, a rotation blocking ring and the like in the anti-falling safety device, and interference is avoided.

Meanwhile, the rear cover can be made of any one of metal, nylon and plastic. It should be noted that the materials used for the rear cover are not limited to the above materials, and specific materials may be selected for specific application situations.

Based on the above, the whole fast-assembling rear cover is applicable to safety devices of various types and models, has a simple structure, is stable and reliable, and greatly improves the installation efficiency and is applicable to more materials.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (5)

1. The quick-assembly type sealing rear cover for the anti-falling safety device is arranged on the small end of a shell (6) of the anti-falling safety device, and is characterized in that the sealing rear cover (1) is fixedly connected to the small end of the shell (6) through an elastic sealing ring (3) which is arranged on the outer wall of the sealing rear cover and sleeved with the outer wall of the sealing rear cover.

2. The quick-assembly type sealing rear cover for the anti-falling safety device according to claim 1, wherein a groove corresponding to the elastic sealing ring (3) is formed in the position, corresponding to the elastic sealing ring (3), of the sealing rear cover (1) on the inner wall of the tail portion of the shell (6).

3. The quick-fit sealing rear cover for a fall arrester according to claim 1 or 2, characterized in that the elastic sealing ring (3) is an O-ring.

4. The quick-fit type sealing rear cover for a fall arrester according to claim 3, wherein the center of the sealing rear cover (1) is provided with a protruding structure extending towards a direction away from the housing (6), and the protruding structure is any one of a circle, a triangle, a hexagon and a prolate.

5. A quick-fit type sealing back cover for a fall arrester according to claim 3, characterized in that the material of the sealing back cover (1) is any one of metal, nylon, plastic.