Coupling with anti-loosening structure

Abstract

The utility model discloses a coupler with an anti-loosening structure, which comprises a first connecting shaft, and a sealing gasket is fixed at the bottom of the first connecting shaft. The device further comprises two sets of sealing gaskets, the other set of sealing gaskets are fixed to the top of the second connecting shaft, the two sets of sealing gaskets are attached to each other, tooth blocks are arranged on the outer wall of the first connecting shaft and the outer wall of the second connecting shaft at equal angles, and clamping blocks are meshed with the tooth blocks. The clamping blocks are fixed in the first clamping cover and the second clamping cover at equal angles, the first clamping cover and the second clamping cover are arranged on the first connecting shaft and the second connecting shaft in a sliding mode respectively, and the first clamping cover and the second clamping cover are connected through a bolt. According to the coupler with the anti-loosening structure, the tooth blocks are installed, through meshing between the tooth blocks and the clamping blocks, torsion can be evenly distributed between the clamping blocks and the tooth blocks, and therefore the use time of the tooth blocks and the clamping blocks is prolonged, and loosening is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling technical field, concretely is a coupling with anti -loosening structure. BACKGROUND

[0002] Couplings can firmly connect two shafts in different mechanisms, allowing them to rotate together and transmit motion and torque. Couplings play an irreplaceable role in mechanical and electrical power transmission. They not only ensure the stability and reliability of transmission, but also improve the operating efficiency and safety of equipment.

[0003] The existing couplings are provided with buffer rubber blocks. However, the rubber blocks will deform under the influence of torsion force for a long time, and will also age over time, causing the coupling to loosen when the torsion force is too large.

[0004] To solve the above-mentioned defects, a coupling anti-loosening device with publication number CN215171292U is disclosed. The first hoop body and the second hoop body are connected, and the first hoop body and the second hoop body can be circumferentially clamped on the fastening screw arranged radially on the coupling. This allows the first hoop body and the second hoop body to abut the fastening screw on the coupling. In this way, the fastening screw on the coupling can be prevented from moving away from the axis of the coupling, thereby improving the problem of easy loosening of the coupling.

[0005] In actual use of the above-mentioned device, although the use of the hoop body can prevent loosening, the fastening screw may rotate due to vibration during use, causing the fastening screw to become loose. Therefore, long-term use can cause the fastening screw to loosen, resulting in loosening of the coupling.

[0006] Therefore, we propose a coupling with anti-loosening structure to solve the above problems. INVENTION CONTENTS

[0007] The utility model aims to provide a coupling with anti-loosening structure to solve the problem of loosening of the fastening screw on the coupling due to vibration during use, which can cause the fastening screw to become loose, resulting in loosening of the coupling.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a coupling with anti-loosening structure, comprising a first connecting shaft, the bottom of the first connecting shaft is fixed with a sealing gasket;

[0009] It also includes:

[0010] The sealing gasket is provided with two groups, another group of the sealing gasket is fixed on the top of the second connecting shaft, and the two groups of the sealing gaskets are mutually attached, the outer walls of the first connecting shaft and the second connecting shaft are provided with tooth blocks at equal angles, the tooth blocks are engaged with clamping blocks, the clamping blocks are fixed in the first clamping cover and the second clamping cover at equal angles, the first clamping cover and the second clamping cover are respectively slid on the first connecting shaft and the second connecting shaft, and the first clamping cover and the second clamping cover are connected by bolts.

[0011] The top of the bolt and the first clamping cover form a limiting mechanism through the pawl.

[0012] Preferably, the sealing gasket is composed of rubber material, and the opening in the sealing gasket is consistent with the opening on the first connecting shaft and the second connecting shaft.

[0013] Preferably, the top of the pawl is rotationally connected in the interior of the bolt, and the bottom of the pawl is arc-shaped.

[0014] Preferably, the bottom of the pawl extends into the clamping groove to form a clamping mechanism, the clamping groove is provided on the first connecting shaft at equal angles with the bolt as the center, and the clamping groove is trapezoidal.

[0015] Preferably, the top of the pawl is connected with a spring, and the top of the spring is connected in the interior of the bolt.

[0016] Preferably, the top of the pawl is connected with a pull rope, and the top of the pull rope extends out of the interior of the bolt to form a sliding mechanism.

[0017] Preferably, the bolts are provided at equal angles with the first connecting shaft as the center, and the structures on the bolts are consistent.

[0018] Compared with the prior art, the coupling with the anti-loosening structure has better anti-loosening property and stronger stability, the use of the tooth blocks can improve the meshing property, thereby avoiding loosening, and the use of the pawls can avoid loosening of the bolts, and the specific contents are as follows:

[0019] (1) The tooth blocks are provided, the meshing between the tooth blocks and the clamping blocks can evenly distribute the torsion force, thereby prolonging the use time of the tooth blocks and the clamping blocks, and thus loosening is avoided;

[0020] (2) The pawls are provided, the clamping between the pawls and the clamping grooves enables the bolt to only rotate in one direction, thereby avoiding loosening of the bolt, and thereby improving the stability of the connection;

[0021] (3) the sealing gasket is arranged, is made of rubber material, and the opening in the sealing gasket is consistent with the opening on the first connecting shaft and the second connecting shaft, so that the sealing gasket can reduce the friction between the first connecting shaft and the second connecting shaft, thereby avoiding damage to the first connecting shaft and the second connecting shaft;

[0022] (4) the spring is arranged, the top of the pawl is connected with the spring, and the top of the spring is connected in the bolt, so that the spring can limit the pawl, thereby improving the stability of the pawl;

[0023] (5) the pull rope is arranged, the top of the pawl is connected with the pull rope, and the top of the pull rope extends out of the inside of the bolt to form a sliding mechanism, so that the rotation of the pawl can be facilitated by the movement of the pull rope, thereby facilitating the reverse rotation of the bolt. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 it is the front view structure schematic diagram of the utility model;

[0025] Figure 2 it is the front view structure schematic diagram of the sealing gasket of the utility model;

[0026] Figure 3 it is the front view structure schematic diagram of the tooth block of the utility model;

[0027] Figure 4 it is the front view structure schematic diagram of the pawl of the utility model;

[0028] Figure 5 it is the front view structure schematic diagram of the clamping groove of the utility model;

[0029] Figure 6 it is the front view structure schematic diagram of the spring of the utility model.

[0030] In the drawing: 1, first connecting shaft;2, second connecting shaft;3, first clamping cover;4, second clamping cover;5, tooth block;6, clamping block;7, sealing gasket;8, bolt;9, pawl;10, spring;11, pull rope;12, clamping groove. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not 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 scope of protection of the utility model.

[0032] The utility model discloses a fastening screw can be prevented from loosening through the use of the clamping block 6, and the utility model discloses a coupling is prevented from loosening through the use of the clamping block 6.

[0033] The first connecting shaft 1 is fixed with a sealing gasket 7 at the bottom, and the sealing gasket 7 is fixed at the top of the second connecting shaft 2, and the two groups of sealing gaskets 7 are mutually attached, the outer walls of the first connecting shaft 1 and the second connecting shaft 2 are both provided with tooth blocks 5 at equal angles, the tooth blocks 5 are engaged with clamping blocks 6, the clamping blocks 6 are fixed in the first clamping cover 3 and the second clamping cover 4 at equal angles, the first clamping cover 3 and the second clamping cover 4 are respectively slid on the first connecting shaft 1 and the second connecting shaft 2, the first clamping cover 3 and the second clamping cover 4 are connected by bolts 8, the sealing gasket 7 is made of rubber material, the holes in the sealing gasket 7 are consistent with the holes on the first connecting shaft 1 and the second connecting shaft 2, and the bolts 8 are arranged at equal angles with the first connecting shaft 1 as the center, and the structures of the bolts 8 are consistent.

[0034] Reference Figures 1 to 3 In use, the first connecting shaft 1 is connected with a power source, and the second connecting shaft 2 is connected with a connecting shaft, then the first connecting shaft 1 is driven to rotate by the power source, and then the first connecting shaft 1 drives the second clamping cover 4 to rotate through the first clamping cover 3, the first connecting shaft 1 and the first clamping cover 3 are connected through the engagement of the tooth blocks 5 and the clamping blocks 6, the engagement between the clamping blocks 6 and the tooth blocks 5 can share the greater torsion, and then the purpose of uniform stress can be achieved, so that the first connecting shaft 1 drives the second connecting shaft 2 to rotate, and the engagement between the tooth blocks 5 and the clamping blocks 6 can reduce the abrasion, thereby improving the service life and achieving the purpose of preventing loosening, and the sealing gasket 7 can reduce the friction between the first connecting shaft 1 and the second connecting shaft 2, thereby improving the service life.

[0035] The utility model discloses a bolt 8 is not connected enough stable, through the use of the pawl 9 can improve the stability of bolt 8, disclose:

[0036] The top of the bolt 8 constitutes a limiting mechanism between the pawl 9 and the first clamping cover 3, the pawl 9 is rotatably connected in the inside of the bolt 8, the bottom front side of the pawl 9 is arc-shaped, the bottom of the pawl 9 extends into the inside of the clamping groove 12 to constitute a clamping mechanism, the clamping groove 12 is provided on the first connecting shaft 1 at equal angles with the bolt 8 as the center, and the clamping groove 12 is trapezoidal, the top of the pawl 9 is connected with a spring 10, and the top of the spring 10 is connected in the inside of the bolt 8.

[0037] Reference Figures 1 to 6, by rotating the bolt 8, in turn, the bolt 8 can be connected between the first connecting shaft 1 and the second connecting shaft 2, and after the bolt 8 is rotated to the position, the pawl 9 will extend into the inside of the clamping groove 12, then the bolt 8 is rotated to drive the pawl 9 to rotate, in turn, the pawl 9 rotates and extrudes between the clamping groove 12, so that the pawl 9 is extruded to rotate to the inside of the bolt 8, and the pawl 9 rotates to extrude the spring 10, so that the spring 10 is forced to compress, and after the bolt 8 is rotated to the position, the spring 10 can drive the pawl 9 to extend into the inside of the clamping groove 12 to form a clamping, so that the reverse rotation of the bolt 8 can be avoided, thereby improving the stability of the connection.

[0038] Embodiment three: the utility model solves the problem that the bolt 8 is inconvenient to reverse in embodiment two, the rotation of the bolt 8 can be facilitated through the movement of the pull rope 11, and the utility model discloses:

[0039] The top of the pawl 9 is connected with the pull rope 11, and the top of the pull rope 11 extends into the inside of the bolt 8 to form a sliding mechanism;

[0040] Reference Figures 1 to 6 When disassembly is needed, the pull rope 11 is pulled, in turn, the pull rope 11 is moved to drive the pawl 9 to rotate, so that the pawl 9 rotates and is separated from the clamping of the clamping groove 12, then the bolt 8 is reversed, in turn, the bolt 8 can be separated from the inside of the first connecting shaft 1 and the second connecting shaft 2, so that the first connecting shaft 1 and the second connecting shaft 2 can be separated.

[0041] Working principle: when the coupling with the anti-loosening structure is used, first, reference Figures 1 to 3 When in use, the first connecting shaft 1 is connected with the power source, and the second connecting shaft 2 is connected with the connecting shaft, then the first connecting shaft 1 is driven to rotate by the power source, since the first connecting shaft 1 and the first clamping cover 3 are connected through the meshing of the tooth block 5 and the clamping block 6, in turn, the purpose of uniform stress can be achieved, and the meshing between the tooth block 5 and the clamping block 6 can reduce the wear, thereby improving the service life, and also achieving the purpose of preventing loosening, the sealing gasket 7 can reduce the direct friction between the first connecting shaft 1 and the second connecting shaft 2, thereby improving the service life;

[0042] Reference Figures 1 to 6, by rotating the bolt 8, in turn, the bolt 8 can be connected between the first connecting shaft 1 and the second connecting shaft 2, and the bolt 8 is rotated to the position, so that the pawl 9 extends into the inside of the clamping groove 12, in turn, the pawl 9 rotates and extrudes between the clamping groove 12, and the pawl 9 rotates and extrudes the spring 10, so that the spring 10 is forced to compress, and after the bolt 8 is rotated to the position, the spring 10 can push the pawl 9 to extend into the inside of the clamping groove 12 to form clamping, so that the reverse rotation of the bolt 8 can be avoided, thereby improving the stability of the connection;

[0043] Reference Figures 1 to 6 When disassembly is required, the pull rope 11 is pulled, in turn, the pull rope 11 moves to drive the pawl 9 to rotate, and then the bolt 8 is reversed, in turn, the bolt 8 can be separated from the inside of the first connecting shaft 1 and the second connecting shaft 2, so that the first connecting shaft 1 and the second connecting shaft 2 can be separated.

[0044] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

[0045] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A coupling provided with an anti-loosening structure, comprising a first connecting shaft (1), the bottom of the first connecting shaft (1) is fixed with a sealing gasket (7); characterized in that Further comprising: The sealing gasket (7) is provided with two groups, the other group of sealing gaskets (7) is fixed on the top of the second connecting shaft (2), and the two groups of sealing gaskets (7) are mutually adhered, the outer wall of the first connecting shaft (1) and the second connecting shaft (2) is provided with a tooth block (5) at equal angles, and the tooth block (5) is engaged with a clamping block (6), the clamping block (6) is fixed in the first clamping cover (3) and the second clamping cover (4) at equal angles, and the first clamping cover (3) and the second clamping cover (4) are respectively slid on the first connecting shaft (1) and the second connecting shaft (2), the first clamping cover (3) and the second clamping cover (4) are connected by bolts (8); The top of the bolt (8) and the first clamping cover (3) constitute a limiting mechanism through the pawl (9).

2. The shaft coupling with anti-loosening structure according to claim 1, characterized in that: The sealing gasket (7) is composed of rubber material, and the opening in the sealing gasket (7) is consistent with the opening on the first connecting shaft (1) and the second connecting shaft (2).

3. The shaft coupling with anti-loosening structure according to claim 1, characterized in that: The top of the pawl (9) is rotatably connected in the inside of the bolt (8), and the bottom of the pawl (9) is arc-shaped.

4. The shaft coupling with anti-loosening structure according to claim 2, characterized in that: The bottom of the pawl (9) extends into the inside of the clamping groove (12) to constitute a clamping mechanism, and the clamping groove (12) is provided on the first connecting shaft (1) at equal angles with the bolt (8) as the center, and the clamping groove (12) is provided in trapezoidal shape.

5. The shaft coupling with an anti-loosening structure according to claim 4, characterized in that: The top of the pawl (9) is connected with a spring (10), and the top of the spring (10) is connected in the inside of the bolt (8).

6. A coupling with an anti-loosening structure according to claim 5, characterized in that: The top of the pawl (9) is connected with a pull rope (11), and the top of the pull rope (11) extends out of the inside of the bolt (8) to constitute a sliding mechanism.

7. The shaft coupling with an anti-loosening structure according to claim 1, characterized in that: The bolt (8) is provided at equal angles with the first connecting shaft (1) as the center, and the structure on the bolt (8) is consistent.

Images