CN220431963U - A lid behind fast-assembling formula for preventing weighing down safety device - Google Patents

Abstract

The utility model discloses a quick-assembly type rear cover for an anti-falling safety device, and relates to the technical field of anti-falling safety device components, wherein the quick-assembly type rear cover is arranged on a small end of a shell of the anti-falling safety device, and the rear cover is screwed on the small end of the shell with internal threads through external threads formed on the outer wall of the rear cover. The utility model not only can simplify the assembly steps of the safety device, but also can improve the assembly efficiency; the number of parts of the safety device is reduced; the weight of the whole safety device is reduced; the sealing performance of the safety device and the effect of protecting the IP level are improved, and the safety device has the effect of saving a limiting structure outside the shell and saving a processing program.

Description

A lid behind fast-assembling formula for preventing weighing down safety device

Technical Field

The utility model relates to the technical field of safety device components, in particular to a quick-assembly 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, the connection mode between the rear cover and the shell is mainly two, one 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. The other is to use a 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 falling protector of CN203767787U disclosed in patent grant publication number.

The first method can realize the fixed connection between the rear cover and the shell, but needs to add parts 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. In the second method, although parts are not required to be additionally arranged, the assembly step is omitted, but the connection mode adopted by the second method is that the inner wall of the top torsion cover is provided with an inner thread and the outer wall of the shell is provided with an outer thread to be matched with each other to realize fixed connection. Based on the above problems, the utility model provides a quick-assembly rear cover for a fall-preventing safety device.

Disclosure of Invention

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

a quick-assembling type back cover for safety device is installed on safety device casing tip, back cover is through the external screw thread of its outer wall seting up screw thread on having the internal screw thread on the casing tip.

Further, the rear cover comprises a cover plate and a connecting ring, wherein the cover plate and the connecting ring are integrally connected, the connecting ring is arranged at the end part of the cover plate, the external threads are formed along the outer wall of the connecting ring, and the outer wall of the cover plate protrudes out of the outer wall of the cover plate along the radial direction so that the protruding part of the cover plate forms a limiting part.

Further, the center of the rear cover plate 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 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 quickly assembled by adopting the mode that the external threads of the rear cover are matched with the internal threads of the shell, and the novel rear cover structure which can be assembled on the shell in a screwing mode is provided, and the technical scheme provided by the application 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 limiting structure outside the shell is omitted, and the processing program is saved.

Drawings

FIG. 1 is a sectional view of a quick-fit 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 cross-sectional view of the screw-type quick-assembling rear cover of the present utility model.

Reference numerals: 1. a rear cover; 11. a cover plate; 12. a connecting ring; 2. baffle plate screws; 3. a shaft end baffle; 4. loading a nut; 5. a rotation blocking ring; 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 anti-falling safety device comprises a shell 6, a quick-assembly rear cover 1, an end cover 7, a gear shaft 8 and other safety device components. Other safety components such as the baffle screw 2, shaft end baffle 3, loading nut 4, anti-rotation ring 5, etc.

The quick-assembly rear cover 1 is an indispensable part of the fall arrester as a closing component assembled at one end of the housing 6. Based on the defect that the mode of adopting the fastener to realize fixed connection between back lid 1 and casing 6 exists in the prior art, this application provides the back lid structure of back lid 1 and casing 6 fixed connection is realized to the mode of screwing in addition to the mode of screwing that mentions of background art.

As shown in fig. 1-2, a quick-assembly rear cover for a fall arrester is mounted on a small end of a fall arrester housing 6, specifically, the rear cover 1 is fixedly connected to the small end of the fall arrester housing 6 in the following manner: the rear cover 1 is screwed on the small end of the shell 6 with internal threads through external threads formed on the outer wall of the rear cover. That is, the rear cover 1 is fixedly connected by the way that the external thread of the outer wall is matched with the internal thread of the shell 6, and can be directly installed by manual screwing, and the connection does not need fasteners such as screw connection. The number of parts of the safety device is reduced, the assembly steps of the safety device and the use times of assembly tools are reduced, and the assembly efficiency of the safety device is improved.

It should be noted that the connection between the rear cover 1 and the housing 6 is not limited to a screw thread, but may be a spring washer or other connection that can serve as a fastening connection.

More specifically, the rear cover 1 includes a cover plate 11 and a connection ring 12 at an end of the cover plate 11, the external thread is opened along an outer wall of the connection ring 12, and the outer wall of the cover plate 11 protrudes 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 restriction portion. During connection, the external threads on the connecting ring 12 are matched with the internal threads of the shell 6, so that the whole rear cover 1 is fixedly connected with the shell 6. The limiting part is used for limiting the maximum screwing distance of the rear cover 1, and judging whether the rear cover 1 is screwed in place according to whether the limiting part on the connecting ring 12 is screwed to be in contact with the small end part of the shell 6, so that the rear cover 1 is guaranteed to be installed in place, and the stability and reliability of the rear cover 1 after being installed are guaranteed.

Compared with the prior art that the rear cover 1 is matched with the external threads of the shell 6 through the internal threads to realize the fixed connection of the internal threads and the external threads of the shell 6, the fixed connection mode of the rear cover 1 not only provides a new structure to achieve the purpose of screwing and installing, but also has the step-shaped limiting structure outside the shell 6 in the prior art, that is, the prior art scheme needs to add the structure when the shell 6 is processed to help judge whether the rear cover 1 is installed in place during assembly, thus leading to complex processing procedures of the shell 6, and the limiting part protruding on the cover plate 11 of the rear cover 1 is in contact with the end part existing on the shell 6 to judge whether the rear cover 1 is screwed in place or not, so that the limiting structure is not needed to be added on the shell 6, and the processing procedures of the shell 6 are reduced.

The center of the cover plate 11 of the rear cover 1 is provided with a convex structure extending away from the housing 6, and the convex structure has any one of a circular shape, a triangular shape, a hexagonal shape, and a prolate shape. The arrangement of the protruding structure is convenient to install, and is also suitable for sleeving auxiliary tools (such as a spanner, a lever and the like) by manual screwing. In addition, the protruding structure of the rear cover 1 reserves enough space for parts such as a baffle spiral ring, a shaft end baffle 3, a loading nut 4, a rotation blocking ring 5 and the like in the anti-falling safety device, and interference is avoided.

Meanwhile, the rear cover 1 can be made of any one of metal, nylon and plastic. It should be noted that the materials used for the back cover 1 are not limited to the above materials, and specific materials may be selected for specific applications.

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 (3)

1. The quick-mounting 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 rear cover (1) is screwed on the small end of the shell (6) with internal threads through external threads formed on the outer wall of the rear cover;

the rear cover (1) is made of any one of metal, nylon and plastic.

2. The quick-fit rear cover for a fall arrester according to claim 1, characterized in that the rear cover (1) comprises a cover plate (11) and a connecting ring (12) at the end of the cover plate (11) connected in one piece, the external thread being opened along the outer wall of the connecting ring (12), the outer wall of the cover plate (11) protruding in the radial direction from the outer wall of the cover plate (11) such that the protruding portion of the cover plate (11) forms a restriction.

3. The quick-fit rear cover for a fall arrester according to claim 1 or 2, characterized in that the cover plate (11) of the rear cover (1) is provided with a protruding structure extending towards a direction away from the housing (6), the protruding structure being any one of circular, triangular, hexagonal, oblong in shape.