Combined bolt fastener

Abstract

The utility model relates to the technical field of bolts, in particular to a combined bolt fastener. In order to solve the problems that a common combined bolt fastener gasket structure is easy to loosen in the use process, the sealing performance is influenced, the gasket structure is easy to be separated from a bolt to fall off and lose in the disassembly process, and the subsequent use is hindered, the following technical scheme is provided: the combined bolt fastener gasket structure comprises a screw main body, the top end of the screw body is connected with a screw head which can conveniently drive the screw body to rotate, the surface of the outer ring of the screw body is sleeved with a sealing gasket, and anti-disengaging assemblies which can conveniently block and limit the position of the sealing gasket are symmetrically arranged in the sealing gasket. The purpose of fixing the position of the sealing gasket in a use state is achieved while the sealing gasket is prevented from moving to affect disassembly in the disassembly process, the sealing gasket is convenient to disassemble and replace, the maintenance difficulty is reduced, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a combined bolt fastener. Background Art

[0002] A combined bolt is a common connecting piece, usually composed of multiple parts, with excellent connection performance and applicability. A combined bolt is usually composed of a hexagonal head, a screw rod and a gasket. The design of the hexagonal head facilitates the disassembly and assembly of the whole combined bolt. And under the design of the screw rod, it is beneficial to fix the combined bolt at the part to be installed. And with the assistance of the gasket, the part where the combined bolt is inserted is sealed, reducing the risk of water seepage and rust, which is beneficial to improving the stability of the connection between the combined bolt and the connection structure.

[0003] However, the gasket structure of common combined bolt fasteners is prone to looseness during use, affecting the sealing performance. And during the disassembly process, the gasket structure is prone to break away from the bolt and fall off and get lost, hindering subsequent use. In view of this, we propose a combined bolt fastener. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a combined bolt fastener aiming at the problems existing in the background art.

[0005] The technical solution of the utility model: A combined bolt fastener, including a screw rod main body, a screw head connected to the top end of the screw rod main body for conveniently driving the screw rod main body to rotate, a sealing gasket sleeved on the outer surface of the screw rod main body, and anti-detachment components symmetrically arranged in the sealing gasket for conveniently blocking and restricting the position of the sealing gasket. The anti-detachment components include arc-shaped blocking pieces, movable blocks symmetrically welded on the outer walls on both sides of the arc-shaped blocking pieces, first springs connected to the back walls of the two movable blocks, and guide rods arranged in the two first springs.

[0006] Positioning components for conveniently driving the anti-detachment components to move are symmetrically installed on the two groups of anti-detachment components. The positioning components include T-shaped positioning insertion rods, arc-shaped moving pieces sleeved on the T-shaped positioning insertion rods, and second springs symmetrically arranged on the back walls of the arc-shaped moving pieces.

[0007] Preferably, the screw head is set in a hexagonal state when viewed from above, and a hexagonal groove is opened on the top wall of the screw head.

[0008] Preferably, arc-shaped grooves are symmetrically opened in the sealing gasket, the two movable blocks and the first springs are symmetrically arranged in the arc-shaped grooves corresponding in position, and the other ends of the two first springs are connected to the groove walls of the arc-shaped grooves.

[0009] Preferably, sliding holes are symmetrically formed in the two movable blocks, the two guide rods are symmetrically arranged in the sliding holes corresponding in position, and both ends of the two guide rods are connected to the groove wall of the arc-shaped groove.

[0010] Preferably, the arc-shaped moving member is also arranged in the arc-shaped groove. The arc-shaped moving member and the arc-shaped blocking member are respectively provided with a second through hole and a first through hole. One end of the T-shaped positioning insertion rod penetrates through the second through hole and the first through hole, and the outer circumferential surface of the T-shaped positioning insertion rod is also fixedly connected to the hole wall of the first through hole.

[0011] Preferably, cutouts are symmetrically formed on the back arc-shaped wall body of the arc-shaped moving member, and the end portions of the two second springs are respectively connected to the wall bodies of the cutouts corresponding in position.

[0012] Preferably, positioning holes are symmetrically formed on both side wall bodies of the screw main body, and one end of the T-shaped positioning insertion rod is inserted into the positioning hole corresponding in position.

[0013] Compared with the prior art, the utility model has the following beneficial technical effects:

[0014] With the arrangement of the first spring in the utility model, the arc-shaped blocking member is located in the middle hollow structure of the sealing gasket. Thus, during the installation of the sealing gasket, it is beneficial to prevent the sealing gasket from falling off under the blocking of the threads of the screw main body, realizing the reduction of the risk of its loss during disassembly. At the same time, with the movable arrangement of the arc-shaped blocking member, it is convenient to disassemble and replace the sealing gasket according to the damage and sealing condition of the sealing gasket. And positioning holes are formed on the outer surface wall body of the screw main body, and then through the elasticity of the second spring by the T-shaped positioning insertion rod, the arc-shaped moving member can drive the T-shaped positioning insertion rod to be inserted into the positioning hole, achieving the purpose of strengthening and fixing the position of the sealing gasket, improving the stability and sealing performance of the sealing gasket during use, so as to prevent the sealing gasket from moving during disassembly and avoid affecting the disassembly work. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of a combined bolt fastener;

[0016] Figure 2 is Figure 1 the three-dimensional structural schematic diagram of the screw main body and the sealing gasket in

[0017] Figure 3 is Figure 1 the three-dimensional structural schematic diagram of the sealing gasket and the screw main body in a top-down sectional view;

[0018] Figure 4 is Figure 2 the three-dimensional structural schematic diagram of the anti-detachment component in

[0019] Figure 5 Yes Figure 1 Schematic diagram of the three-dimensional structure of the positioning component in the middle.

[0020] Reference numerals: 1, screw body; 2, screw head; 3, sealing gasket; 4, anti-disengagement component; 41, arc-shaped blocking piece; 42, movable block; 43, first spring; 44, guide rod; 5, positioning component; 51, T-shaped positioning plug; 52, arc-shaped moving piece; 53, second spring. Detailed implementation mode

[0021] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment

[0023] As Figures 1 to 5 shown, a combined bolt fastener proposed by the present utility model includes a screw body 1, a screw head 2 is fixedly installed on the top end of the screw body 1, and the screw head 2 is hexagonal in a top view state, which is beneficial to turning the screw head 2 to drive the screw body 1 to rotate, facilitating subsequent disassembly and assembly work. At the same time, a hexagonal groove is also opened on the top wall of the screw head 2, so that the screw head 2 can be suitable for two types of wrenches for internal and external turning, providing multiple choices for users; a sealing gasket 3 is sleeved on the outer surface of the screw body 1 to seal the screw head 2 and the fastening part of the article in the installed state, reducing the risk of water seepage and rust at the installation connection structure.

[0024] Furthermore, an anti - detachment component 4 for facilitating the blocking and limiting of the position of the sealing gasket 3 is symmetrically arranged inside the sealing gasket 3. The anti - detachment component 4 includes an arc - shaped blocking piece 41, a movable block 42, a first spring 43 and a guide rod 44. The arc - shaped blocking piece 41 is located in the middle hollow part of the sealing gasket 3. With the arrangement of the arc - shaped blocking piece 41, the sealing gasket 3 can block its own descent, prevent it from detaching from the screw body 1, and reduce the risk of its loss. Two movable blocks 42 are symmetrically welded on the outer arc - surface wall of the arc - shaped blocking piece 41 and are symmetrically arranged in the arc - shaped grooves opened in the sealing gasket 3. Since the lower half of the screw body 1 has protruding threads, the movable blocks 42 closely attached to the upper half of the screw body 1 can play an anti - detachment role to prevent affecting subsequent use. Two first springs 43 are symmetrically arranged in the arc - shaped grooves. One ends of the two first springs 43 are respectively fixedly connected to the back walls of the two movable blocks 42. Two guide rods 44 are symmetrically arranged in the sliding holes opened in the two movable blocks 42. Both ends of the two guide rods 44 are fixedly connected to the wall of the arc - shaped groove, cooperating with the movable blocks 42 to assist the movement of the arc - shaped blocking piece 41. When the arc - shaped blocking piece 41 moves into the arc - shaped groove, the close contact between the arc - shaped blocking piece 41 and the outer surface of the screw body 1 can be released, and the limit on the sealing gasket 3 can be removed, which is beneficial to peeling the sealing gasket 3 from the screw body 1, completing the disassembly of the sealing gasket 3, facilitating the replacement of the sealing gasket 3 when its sealing performance decreases or it is damaged, and providing convenience for subsequent maintenance work.

[0025] Furthermore, positioning components 5 for facilitating the movement of the anti - detachment components 4 are symmetrically installed on the two groups of anti - detachment components 4. The positioning component 5 includes a T - shaped positioning plug 51, an arc - shaped moving piece 52 and a second spring 53. Third through - holes are symmetrically opened on both side walls of the sealing gasket 3. The third through - holes communicate with the arc - shaped grooves. The end of the T - shaped positioning plug 51 penetrates through the third through - hole, the second through - hole opened in the arc - shaped moving piece 52 and the first through - hole opened in the arc - shaped blocking piece 41, and is inserted into the positioning holes symmetrically opened on the outer surface wall of the screw body 1. A part of the outer - circle surface of the T - shaped positioning plug 51 is fixedly connected to the hole wall of the first through - hole. Thus, with the close contact between the arc - shaped blocking piece 41 and the outer wall of the screw body 1, and in cooperation with the positioning holes, the purpose of fixing the position of the sealing gasket 3 can be achieved, improving the stability of the sealing gasket 3 during use and reducing its movement risk. At the same time, under the fixing action of the sealing gasket 3, it is beneficial to prevent the screw body 1 from interfering with the operation of the staff during disassembly. Cut - outs are symmetrically opened on the back arc - surface wall of the arc - shaped moving piece 52. Both ends of the two second springs 53 are respectively connected to the cut - outs and the inner wall of the arc - shaped groove, facilitating the reset of the loosened T - shaped positioning plug 51, so that it can be conveniently re - inserted into the positioning hole, and making the T - shaped positioning plug 51 have good flexibility.

[0026] The above specific embodiments are only several preferred embodiments of the present utility model. Based on the technical solution of the present utility model and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A combined bolt fastener, comprising a screw body (1), characterized in that: A screw head (2) is connected to the top of the screw body (1) for driving the screw body (1) to rotate, a sealing gasket (3) is sleeved on the outer ring surface of the screw body (1), and an anti-slip assembly (4) is symmetrically arranged inside the sealing gasket (3) for blocking and limiting the position of the sealing gasket (3), and the anti-slip assembly (4) includes an arc-shaped blocking member (41), and movable blocks (42) are symmetrically welded on the outer walls of both sides of the arc-shaped blocking member (41), and the back walls of the two movable blocks (42) are connected to a first spring (43), and the two first springs (43) are each provided with a guide rod (44); The two groups of anti-slip components (4) are symmetrically provided with positioning components (5) for driving the anti-slip components (4) to move. The positioning components (5) include a T-shaped positioning rod (51), an arc-shaped moving member (52) is sleeved on the T-shaped positioning rod (51), and a second spring (53) is symmetrically arranged on the back wall of the arc-shaped moving member (52).

2. A combined bolt fastener according to claim 1, characterized in that: The screw head (2) is arranged in a hexagonal shape when viewed from above, and a hexagonal groove is provided on the top wall of the screw head (2).

3. A combined bolt fastener according to claim 1, characterized in that: The sealing gasket (3) is symmetrically provided with arc grooves, the two movable blocks (42) and the first springs (43) are symmetrically arranged in the arc grooves at corresponding positions, and the other ends of the two first springs (43) are connected to the groove wall of the arc groove.

4. A combined bolt fastener according to claim 3, characterized in that: The two movable blocks (42) are symmetrically provided with sliding holes, the two guide rods (44) are symmetrically arranged in the sliding holes at corresponding positions, and both ends of the two guide rods (44) are connected to the groove wall of the arc groove.

5. A combined bolt fastener according to claim 3, characterized in that: The arc-shaped moving member (52) is also arranged in the arc-shaped groove. The arc-shaped moving member (52) and the arc-shaped blocking member (41) are respectively provided with a second through hole and a first through hole. One end of the T-shaped positioning rod (51) passes through the second through hole and the first through hole. The outer ring surface of the T-shaped positioning rod (51) is also fixedly connected to the hole wall of the first through hole.

6. A combined bolt fastener according to claim 1, characterized in that: The arc surface wall of the back of the arc-shaped moving member (52) is symmetrically provided with cutouts, and the ends of the two second springs (53) are respectively connected to the cutout walls at corresponding positions.

7. A combined bolt fastener according to claim 1, characterized in that: Positioning holes are symmetrically provided on the two side walls of the screw body (1), and one end of the T-shaped positioning rod (51) is inserted into the corresponding positioning hole.

Images