Assembly device for preventing gasket from falling off

Abstract

The utility model belongs to the technical field of bolt gaskets, in particular to an assembly device capable of preventing gaskets from falling off, which comprises a threaded column and a bolt head, a connecting column is arranged at the top of the threaded column, and the threaded column and the connecting column are of an integral structure. A bolt head is fixedly arranged at the top of the connecting column, the outer wall of the connecting column is sleeved with a gasket, the gasket and the bolt head are detachably fixed, a round rib is fixedly arranged at the bottom of the gasket on the outer wall of the connecting column, and a 7-shaped clamping block is fixed to the top of the gasket. The first empty groove, the second empty groove, the third empty groove and the fourth empty groove are formed in the periphery of the bolt head, the telescopic column, the reset spring and the check block are arranged in the fourth empty groove, and therefore the fourth empty groove is matched with the 7-shaped clamping block, the gasket can be prevented from falling off, the gasket is hung on the lower portion of the bolt head after the bolt is completed, and therefore the integrity of the gasket can be guaranteed; the deformation cannot easily occur.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt gaskets, in particular to an assembly device that prevents gaskets from falling off. Background Art

[0002] When bolts are used daily, gaskets are usually placed on the screw rods to improve the sealing and wear resistance of the bolted connection.

[0003] In the prior art, a bolt structure for preventing gaskets from falling off is proposed in the publication number: CN 214118693 U, which relates to the technical field of bolts, and is composed of a shaft portion with threads on the outer circumference and a head arranged at one end of the shaft portion, characterized in that a circle of annular clamping ring is arranged on the outer wall of the shaft portion, the annular clamping ring is arranged close to the head, and a gasket is arranged on the shaft portion between the annular clamping ring and the head, and the inner diameter of the gasket is smaller than the outer diameter of the clamping ring. The utility model effectively prevents the gasket from falling off the bolt during the bolt assembly process.

[0004] The bolt structure for preventing the gasket from falling off fixes the gasket by means of an annular retaining ring arranged at the bottom of the gasket. Moreover, since the gasket is placed on the shaft and then the annular retaining ring is threaded on the shaft by a thread rolling plate, the gasket is easily damaged during the thread rolling process, causing the gasket to deform. Therefore, during subsequent use, when the bolt is tightened, the deformed gasket is not conducive to tightening. Utility Model Content

[0005] Based on the existing technical problems of bolt washers, the utility model proposes an assembly device that prevents washers from falling off.

[0006] The utility model proposes an assembly device for preventing a gasket from falling off, comprising a threaded column and a bolt head, wherein a connecting column is provided on the top of the threaded column, and the threaded column and the connecting column are formed into an integral structure; a bolt head is fixedly provided on the top of the connecting column, a gasket is sleeved on the outer wall of the connecting column, and the gasket and the bolt head are detachably fixed, and a round rib is fixedly provided on the bottom of the gasket on the outer wall of the connecting column.

[0007] Preferably, the appearance of the bolt head is a hexagonal prism, and a cross groove is provided on the top of the bolt head.

[0008] Through the above technical solution, a cross groove is provided on the top of the bolt head and the appearance of the bolt head is set as a hexagonal column, so that the bolt has two places to rotate the bolt.

[0009] Preferably, a first empty slot is provided on each side of the bolt head, a second empty slot is provided inside the bolt head above the first empty slot, and a third empty slot is provided inside the first and second empty slots, the first, second and third empty slots are connected, a fourth empty slot is provided in front of the third empty slot, and the fourth empty slot and the second empty slot are connected.

[0010] Through the above technical solution, the through arrangement of the first empty slot, the second empty slot and the third empty slot can facilitate the detachable fixation of the gasket under the bolt head.

[0011] Preferably, a telescopic column is fixedly provided inside the fourth slot, a return spring is fixedly provided inside the fourth slot outside the telescopic column, a stopper is fixedly provided on the top of the telescopic column, and the top of the return spring is fixedly connected to the top of the stopper.

[0012] Through the above technical solution, the cooperation between the stopper, the return spring and the telescopic column can enable the stopper to be telescoped up and down.

[0013] Preferably, the stopper is configured as a triangular prism, and the length of the stopper is smaller than the length of the fourth slot.

[0014] Through the above technical solution, the stopper is set as a triangular prism, which can facilitate the drop of the stopper when it needs to drop inside the fourth slot.

[0015] Preferably, the material of the round rib is set to be a soft, high-temperature resistant silicone rubber material.

[0016] Through the above technical solution, the soft, high-temperature-resistant silicone rubber material is used as the material of the round ribs, which can prevent the round ribs from melting due to excessively high temperatures.

[0017] Preferably, a first inner hole groove is opened in the middle of the round rib, and a thread groove adapted to the thread column is arranged inside the first inner hole groove.

[0018] Through the above technical solution, the threaded groove arranged on the round rib can be threadedly rotated through the threaded column to the connecting column.

[0019] Preferably, the round rib is fixed to the outer wall of the connecting column by gluing.

[0020] Through the above technical solution, the round ribs are bonded to the outer wall of the connecting column to prevent the round ribs from shaking or falling off, and can better prevent the gaskets from falling off.

[0021] Preferably, a second inner hole groove is opened in the middle of the gasket, the diameter of the second inner hole groove is larger than the diameter of the threaded column, and the diameter of the second inner hole groove is smaller than the diameter of the round rib, and six 7-shaped blocks are fixed in a ring around the second inner hole groove at the top of the gasket, and the 7-shaped blocks are made of plastic.

[0022] Through the above technical solution, since the diameter of the second inner hole groove in the middle of the above-mentioned gasket is smaller than the diameter of the round rib, the round rib can play a blocking role on the gasket.

[0023] The beneficial effects of the present invention are:

[0024] 1. By arranging a gasket, a first slot, a second slot, a third slot, a fourth slot, a telescopic column, a reset spring, a block and a 7-shaped block to cooperate with each other, the 7-shaped block can pass through the first slot and get stuck in the second slot and the third slot, and then the block blocks the 7-shaped block, so that the gasket can be fixed to the lower part of the bolt head and is not easy to fall off. Moreover, since the gasket is hung under the bolt head after the bolt is produced, the integrity of the gasket can be ensured and it is not easy to deform.

[0025] 2. By setting soft round ribs, the round ribs are fixed at the bottom of the gasket, which can further prevent the gasket from falling. At the same time, since the round ribs are set to be soft, when the bolts are in use, the round ribs press upward against the gasket, making the fixation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall appearance of a component device for preventing a gasket from falling off proposed by the utility model;

[0027] Figure 2 This is a schematic diagram of the top view of the structure of an assembly device for preventing a gasket from falling off proposed by the utility model;

[0028] Figure 3 This is a schematic diagram of the appearance of a round rib of an assembly device for preventing a gasket from falling off proposed by the utility model;

[0029] Figure 4 A schematic diagram of the appearance of a gasket of an assembly device for preventing a gasket from falling off proposed by the utility model;

[0030] Figure 5 The utility model provides a device for preventing the gasket from falling off. Figure 1 Enlarged schematic diagram at point A in the middle.

[0031] In the figure: 1, threaded column; 2, bolt head; 3, gasket; 4, round rib; 5, connecting column; 6, first inner hole groove; 7, cross groove; 8, second inner hole groove; 21, first empty slot; 22, second empty slot; 23, third empty slot; 24, fourth empty slot; 25, telescopic column; 26, reset spring; 27, stop block; 31, 7-shaped block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0033] Reference Figure 1-Figure 5 , an assembly device for preventing a gasket from falling off. Example

[0034] In this embodiment, a component device for preventing a gasket from falling off comprises a threaded column 1 and a bolt head 2, wherein a connecting column 5 is provided at the top of the threaded column 1, and the threaded column 1 and the connecting column 5 are set as an integral structure; a bolt head 2 is fixedly provided at the top of the connecting column 5, a gasket 3 is sleeved on the outer wall of the connecting column 5, and the gasket 3 is detachably fixed to the bolt head 2, and a round rib 4 is fixedly provided at the bottom of the gasket 3 on the outer wall of the connecting column 5; wherein the appearance of the bolt head 2 is set as a hexagonal column, and a cross groove 7 is opened at the top of the bolt head 2, a first empty groove 21 is opened on each side of the bolt head 2, and a second empty groove 22 is opened inside the bolt head 2 above the first empty groove 21, and a third empty groove 23 is opened inside the first empty groove 21 and the second empty groove 22, and the first empty groove 21, the second empty groove 22 and the third empty groove 23 are set through (such as Figure 5As shown), a fourth slot 24 is provided in front of the third slot 23, and the fourth slot 24 and the second slot 22 are connected, a telescopic column 25 is fixedly provided inside the fourth slot 24, and a return spring 26 is fixedly provided inside the fourth slot 24 outside the telescopic column 25, the height of the return spring 26 of the telescopic column 25 is consistent with the height of the fourth slot 24, a stopper 27 is fixedly provided on the top of the telescopic column 25, and the top of the return spring 26 is fixedly connected to the top of the stopper 27. The stopper 27 is set as a triangular prism, and the length of the stopper 27 is less than the length of the fourth slot 24, and the stopper 27 can just completely enter the fourth slot 24 when it is telescopically lowered. A second inner hole groove 8 is opened in the middle of the gasket 3. The diameter of the second inner hole groove 8 is greater than the diameter of the threaded column 1, and the diameter of the second inner hole groove 8 is smaller than the diameter of the round rib 4. Six 7-shaped blocks 31 are annularly fixed around the second inner hole groove 8 at the top of the gasket 3, and the 7-shaped blocks 31 are connected to the first slot 21, the second slot 22 and the third slot. The 7-shaped card block 31 is adapted to the slot 23; and the 7-shaped card block 31 is a disposable plastic part, so that when the gasket 3 is fixed on the connecting column 5 at the top of the threaded column 1, the 7-shaped card block 31 passes through the first slot 21 and reaches the inside of the second slot 22 and the third slot 23, and then the stopper 27 is pressed so that the 7-shaped card block 31 reaches the other end of the second slot 22 and the third slot 23 away from the first slot 21, and then due to the characteristics of the return spring 2, the stopper 27 rebounds, thereby blocking the 7-shaped card block 31 from moving to the inside of the first slot 21 (such as Figure 5 and when the bolt is in use, when the gasket 3 is subjected to the rotational force of the bolt head 2, the 7-shaped block 31 will break and fall off, thereby not affecting the use of the gasket 3. Example

[0035] In this embodiment, on the basis of embodiment 1, the material of the round rib 4 is set to be a soft, high-temperature resistant silicone rubber material. A first inner hole groove 6 is opened in the middle of the round rib 4, and a thread groove adapted to the threaded column 1 is arranged inside the first inner hole groove 6. The round rib 4 is fixed to the outer wall of the connecting column 5 by glue. By setting the round rib 4, the gasket 3 can be further supported to prevent it from falling, and the round rib 4 is set to be a soft material, so that the peripheral end of the round rib 4 can be tilted upward when the bolt is in use to support the gasket 3, so that the fixation is more stable and firm.

[0036] Working principle: After the threaded column 1, the connecting column 5 and the bolt head 2 are manufactured, the gasket 3 is passed through the threaded column 1 to the outer wall of the connecting column 5 at the bottom of the bolt head 2, and the 7-shaped block 31 is moved upward into the first empty slot 21, and then the gasket 3 is rotated so that the 7-shaped block 31 reaches the second empty slot 22 and the third empty slot 23. Due to the characteristics of the return spring 26, the block 27 can move downward when the 7-shaped block 31 presses the block 27. When the 7-shaped block 31 passes the block 27 to the other side of the block 27, the block 27 rebounds upward, thereby blocking the 7-shaped block. The block 31 prevents the 7-shaped block 31 from entering the first empty groove 21 again and falling down, and then the round rib 4 is spirally moved to pass through the threaded column 1 to the outer wall of the connecting column 5 and is located under the gasket 3, and then the round rib 4 is bonded and fixed to the connecting column 5 by glue, so that when the entire bolt is not in use, the round rib 4 has a blocking effect on the gasket 3 to prevent the gasket 3 from falling off and affecting the use. When the bolt is in use, since the round rib 4 is made of soft rubber material, the round rib 4 is tilted upward to resist the gasket, which can avoid the round rib 4 hindering the use of the bolt as a whole, and can also make the bolt fixed more firmly.

[0037] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An assembly device for preventing a gasket from falling off, comprising a threaded column (1) and a bolt head (2), characterized in that: A connecting column (5) is provided at the top of the threaded column (1), and the threaded column (1) and the connecting column (5) are formed into an integral structure; a bolt head (2) is fixedly provided at the top of the connecting column (5), a gasket (3) is sleeved on the outer wall of the connecting column (5), and the gasket (3) and the bolt head (2) are detachably fixed, and a round rib (4) is fixedly provided at the bottom of the gasket (3) on the outer wall of the connecting column (5).

2. A gasket-preventing assembly device according to claim 1, characterized in that: The appearance of the bolt head (2) is a hexagonal prism, and a cross groove (7) is provided on the top of the bolt head (2).

3. A gasket-preventing assembly device according to claim 2, characterized in that: Each side surface of the bolt head (2) is provided with a first hollow slot (21), a second hollow slot (22) is provided inside the bolt head (2) above the first hollow slot (21), and a third hollow slot (23) is provided inside the first hollow slot (21) and the second hollow slot (22), the first hollow slot (21), the second hollow slot (22) and the third hollow slot (23) are arranged in a continuous manner, a fourth hollow slot (24) is provided in front of the third hollow slot (23), and the fourth hollow slot (24) and the second hollow slot (22) are arranged in a continuous manner.

4. A gasket-preventing assembly device according to claim 3, characterized in that: A telescopic column (25) is fixedly arranged inside the fourth hollow slot (24), a return spring (26) is fixedly arranged outside the telescopic column (25) and inside the fourth hollow slot (24), a stopper (27) is fixedly arranged on the top of the telescopic column (25), and the top of the return spring (26) is fixedly connected to the top of the stopper (27).

5. A gasket-preventing assembly device according to claim 4, characterized in that: The stopper (27) is configured as a triangular prism, and the length of the stopper (27) is smaller than the length of the fourth slot (24).

6. The assembly device for preventing a gasket from falling off according to claim 1, characterized in that: The material of the round rib (4) is a soft, high-temperature-resistant silicone rubber material.

7. The assembly device for preventing a gasket from falling off according to claim 1, characterized in that: A first inner hole groove (6) is provided in the middle of the round rib (4), and a thread groove adapted to the thread column (1) is provided inside the first inner hole groove (6).

8. The assembly device for preventing a gasket from falling off according to claim 1, characterized in that: The round rib (4) is fixed to the outer wall of the connecting column (5) by gluing.

9. The assembly device for preventing a gasket from falling off according to claim 7, characterized in that: A second inner hole groove (8) is provided in the middle of the gasket (3), the diameter of the second inner hole groove (8) is larger than the diameter of the threaded column (1), and the diameter of the second inner hole groove (8) is smaller than the diameter of the round rib (4), and six 7-shaped clamping blocks (31) are annularly fixed on the top of the gasket (3) around the second inner hole groove (8), and the 7-shaped clamping blocks (31) are made of plastic material.

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