Elevator self-locking anchor bolt

Abstract

The utility model relates to the technical field of anchor bolts, and discloses an elevator self-locking anchor bolt which comprises an expansion sleeve, the bottom of the expansion sleeve is fixedly connected with an expansion piece, a plurality of grooves are formed in the expansion piece so that the expansion piece can be unfolded outwards conveniently, the outer wall of the expansion piece is fixedly connected with a plurality of first clamping blocks, and the outer walls of the first clamping blocks are of a triangular structure. The expansion piece is used for clamping and fixing the interior of a wall, a plurality of first fixing rubber discs are fixedly connected to the outer wall of the expansion piece, a conical head is arranged at the bottom of the expansion piece, a rubber pad is fixedly connected to the outer wall of the conical head, a plurality of second fixing rubber discs are fixedly connected to the outer wall of the rubber pad, and a connecting column is fixedly connected to the top of the conical head. According to the device, the attaching stability between the device and the interior of the wall is enhanced through the first clamping block and the first fixing rubber disc, meanwhile, the clamping tightness and stability between the expansion piece and the conical head are enhanced through the rubber pad and the threaded rod, and the effect of connecting and fixing the device and the wall is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of anchor bolt especially relates to a self-locking anchor bolt of elevator. BACKGROUND

[0002] With the acceleration of urbanization, high-rise buildings have sprung up like mushrooms, and elevators have become an indispensable tool for people's vertical travel. As a key support component to ensure the safe and smooth operation of the elevator, the self-locking anchor bolt of the elevator bears the heavy responsibility of firmly connecting the elevator car to the elevator shaft wall, and its performance directly affects the safety of elevator operation and passenger life and property.

[0003] At present, in the elevator system used in many buildings, the common self-locking anchor bolt of the elevator mostly adopts a traditional mechanical structure. Generally, it simply relies on the cooperation of the metal screw rod and the nut, and through the tightening of the thread, the one end of the anchor bolt is pressed against the elevator shaft wall, trying to use friction to fix it. When installing, the worker passes the anchor bolt through the pre-set hole of the car, and screws it into the corresponding drill hole on the shaft wall, relying only on the contact of the thread on the screw rod with the hole wall and the fastening of the nut to realize the connection. This connection method is simple and direct, and seems to meet the basic fixing requirements on the surface.

[0004] However, the self-locking anchor bolt of the elevator with the traditional structure has certain defects. In actual use, due to the long-term and high-frequency operation of the elevator, it is inevitable to produce continuous slight vibration, which will gradually weaken the limited friction between the anchor bolt and the shaft wall. At the same time, the environment in the elevator shaft is complex, the humidity and temperature change greatly, and there are also fine cracks and water seepage in some shaft walls, so that the anchor bolt is in a humid or even corrosive environment for a long time. Under the double action of vibration and corrosion, the anchor bolt is prone to loose connection with the shaft wall, which further leads to the shaking of the elevator car, seriously threatens the safety of passengers riding the elevator, and brings great hidden dangers to daily operation and maintenance. Therefore, a self-locking anchor bolt of elevator is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a self-locking anchor bolt of elevator, which aims at improving the problem of loose connection between the equipment and the wall due to long-term corrosion or slight vibration during use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides an elevator self -locking anchor bolt, including the expansion sleeve, the expansion sleeve bottom fixedly connected with expansion sheet, the expansion sheet inside is equipped with a plurality of recesses, and the expansion sheet outward expansion is facilitated, expansion sheet outer wall is fixedly connected with a plurality of clamping block no.

[0008] As a further description of the above technical solution:

[0009] The conical head top is fixedly connected with a connecting column, and the connecting column is slidingly connected to the inner wall of the expansion sheet.

[0010] As a further description of the above technical solution:

[0011] The connecting column top is fixedly connected with a threaded rod, and the threaded rod top end is located at the top of the expansion sleeve.

[0012] As a further description of the above technical solution:

[0013] The threaded rod is screw-connected in the inside of the expansion sleeve, and the threaded rod is used for fixing the position of the conical head.

[0014] As a further description of the above technical solution:

[0015] The outer wall of the threaded rod is rotatably connected with a nut, and the outer wall of the nut is hexagonal structure.

[0016] As a further description of the above technical solution:

[0017] The nut bottom is provided with a gasket, and the gasket bottom is attached to the top of the expansion sleeve.

[0018] The utility model has the advantages of:

[0019] In the utility model, the stability of the equipment and the wall is enhanced by the clamping block no. and the fixed rubber disc no., and the tightness and stability of the expansion sheet and the conical head are enhanced by the rubber pad and the threaded rod, so that the equipment and the wall are connected and fixed. The problem of loose connection between the equipment and the wall caused by long-term corrosion or slight vibration during use is solved, and the stability of the equipment connection is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 A three-dimensional schematic view of the elevator self-locking anchor bolt is provided.

[0021] Fig. 2A structure diagram of the clamping block one of the elevator self-locking anchor bolt is provided in the utility model.

[0022] Fig. 3 A structure diagram of the threaded rod of the elevator self-locking anchor bolt is provided in the utility model.

[0023] Legend:

[0024] 1, expansion sleeve; 2, expansion sheet; 3, clamping block one; 4, fixed rubber disc one; 5, rubber pad; 6, fixed rubber disc two; 7, connecting column; 8, taper head; 9, threaded rod; 10, nut; 11, gasket. Specific implementation

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Reference Figs. 1-3The utility model provides an embodiment: a kind of elevator self-locking anchor bolt, including expansion sleeve 1, expansion sleeve 1 bottom is fixedly connected with expansion sheet 2, multiple recesses are set in expansion sheet 2, the design of recess facilitates expansion sheet 2 to be evenly unfolded outward, to improve anchoring effect and fixed strength. Expansion sheet 2 outer wall is fixedly connected with multiple clamping blocks one 3, the outer wall of clamping block one 3 is triangular structure, and triangular structure can enhance the gripping force to the inside of wall, for the clamping fixation to the inside of wall, prevent equipment loosening or falling off. Expansion sheet 2 outer wall is fixedly connected with multiple fixed rubber disc one 4, and fixed rubber disc one 4 increases the area of adhesion between expansion sheet 2 and wall by its high friction, to further improve the stability and anti-sliding ability of fixed, expansion sheet 2 bottom is provided with taper head 8, and taper head 8 is used to push expansion sheet 2 to expand outward, realizes anchoring effect. Rubber pad 5 is fixedly connected on the outer wall of taper head 8, and rubber pad 5 plays the role of buffering, reduces the impact force between taper head 8 and expansion sheet 2, simultaneously reduces the vibration and shaking of equipment in use. Multiple fixed rubber disc two 6 are fixedly connected on the outer wall of rubber pad 5, and fixed rubber disc two 6 further expands the contact area between rubber pad 5 and expansion sheet 2, to improve the clamping force between taper head 8 and expansion sheet 2, enhances the firmness of overall structure, and connecting column 7 is fixedly connected on the top of taper head 8, and connecting column 7 is slidably connected on the inner wall of expansion sheet 2, and connecting column 7 can realize the up-down movement of taper head 8 according to the action of threaded rod 9, to adjust the unfolding degree of expansion sheet 2. Threaded rod 9 is fixedly connected on the top of connecting column 7, and the top end of threaded rod 9 is located on the top of expansion sleeve 1, and threaded rod 9 is screw-connected in the inside of expansion sleeve 1, and the position of taper head 8 is fixed by screwing cooperation, to stabilize the expansion state of expansion sheet 2, and nut 10 is rotationally connected on the outer wall of threaded rod 9, and the outer wall of nut 10 is hexagonal structure, and hexagonal structure is convenient for using spanner to rotate, to control the fastening state of threaded rod 9. Pad 11 is arranged on the bottom of nut 10, and the bottom of pad 11 is attached to the top of expansion sleeve 1, and the stress area of nut 10 is increased by the design of pad 11, to prevent damage to the top of expansion sleeve 1 when tightening, simultaneously improve the installation firmness of equipment;

[0027] Specifically, in the use of the device, first, the device is inserted into the hole, then the threaded rod 9 is rotated to drive the taper head 8 of the connecting column 7 to move towards the inside of the device, thereby pushing the expansion sheet 2 to gradually expand outward until the clamping block 3 of the outer wall of the expansion sheet 2 is firmly clamped into the inner wall of the hole. By inserting the sharp corners of the outer wall of the clamping block 3 into the wall, the contact area between the device and the wall is further increased, ensuring that the device is fixed more stably. At the same time, the high friction of the surface of the fixed rubber disc 4 effectively improves the stability between the device and the wall, avoiding loosening of the device under stress. When the taper head 8 moves to the inner wall of the expansion sheet 2, the rubber pad 5 plays a buffering role, effectively reducing the shaking force between the expansion sheet 2 and the taper head 8, further reducing the wear between the connecting parts. In addition, the fixed rubber disc 6 enlarges the contact area between the expansion sheet 2 and the rubber pad 5, further enhancing the clamping effect between the taper head 8 and the expansion sheet 2. This design effectively improves the stability of the connection between the device and the wall, providing protection for the safety and reliability of the device in operation.

[0028] Working principle: In the use of the device, the device is inserted into the hole, then the threaded rod 9 is rotated to drive the taper head 8 of the connecting column 7 to move towards the inside of the device, thereby pushing the expansion sheet 2 to expand outward until the clamping block 3 of the outer wall of the expansion sheet 2 is clamped into the inner wall of the hole. By inserting the sharp corners of the outer wall of the clamping block 3 into the wall, the contact area between the device and the wall is further increased, and the high friction of the surface of the fixed rubber disc 4 enhances the stability between the device and the wall. When the taper head 8 moves to the inner wall of the expansion sheet 2, the rubber pad 5 reduces the shaking force between the expansion sheet 2 and the taper head 8, and the fixed rubber disc 6 enlarges the contact area between the expansion sheet 2 and the rubber pad 5, enhancing the clamping effect between the taper head 8 and the expansion sheet 2, and enhancing the stability of the connection between the device and the wall.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent substitution, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. An elevator self-locking anchor bolt comprising an expansion sleeve (1), characterized in that: The expansion sleeve (1) bottom fixedly connected with expansion sheet (2), the expansion sheet (2) inside is provided with a plurality of recesses, facilitate expansion sheet (2) to spread out, the expansion sheet (2) outer wall is fixedly connected with a plurality of clamping blocks (3), the clamping block (3) outer wall is triangular structure, for the wall inside is fixed, the expansion sheet (2) outer wall is fixedly connected with a plurality of fixed rubber disc (4), the expansion sheet (2) bottom is provided with taper head (8), the taper head (8) outer wall is fixedly connected with rubber pad (5), the rubber pad (5) outer wall is fixedly connected with a plurality of fixed rubber disc (6).

2. An elevator self-locking anchor bolt according to claim 1, characterized in that: The taper head (8) top fixedly connected with connecting column (7), the connecting column (7) is connected in the inner wall of the expansion sheet (2) with sliding.

3. An elevator self-locking anchor bolt according to claim 2, characterized in that: The connecting column (7) top fixedly connected with threaded rod (9), the threaded rod (9) top end is located in the top of the expansion sleeve (1).

4. An elevator self-locking anchor bolt according to claim 3, characterized in that: The threaded rod (9) is screwed in the inside of the expansion sleeve (1), the threaded rod (9) is used for fixing the position of taper head (8).

5. An elevator self-locking anchor according to claim 4, characterized in that: The threaded rod (9) outer wall is rotatably connected with nut (10), the nut (10) outer wall is hexagonal structure.

6. An elevator self-locking anchor according to claim 5, characterized in that: The nut (10) bottom is provided with gasket (11), the gasket (11) bottom is consistent with the expansion sleeve (1) top.

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