One-way detachable split bolt

Abstract

The utility model provides a split bolt, belongs to the technical field of bolt equipment, and particularly relates to a one-way detachable split bolt which comprises a wall body, an embedded part is arranged in the wall body, a bolt structure which corresponds to the embedded part and extends out of the wall body is arranged on one side of the embedded part, and the bolt structure is arranged on the other side of the embedded part. The bolt structure comprises a bolt shell arranged in the embedded part, a rotating bolt corresponding to the bolt shell is arranged in the bolt shell, and a piston is arranged in the rotating bolt. Concrete or other colloids used for plugging can be pre-installed in the rotating bolt firstly, then the rotating bolt is screwed into the bolt shell, when the rotating bolt needs to be taken out, the rotating bolt can be rotated to drive the bolt shell to be screwed out of the embedded part, meanwhile, the piston extrudes the plugging material in the rotating bolt, and the plugging material is taken out along with the taking-out of the bolt shell. And the internal space is blocked.

Description

Technical Field

[0001] The utility model provides a tension bolt, belongs to the technical field of bolt equipment, and particularly relates to a one-way detachable tension bolt. Background Art

[0002] A tension control bolt is a fastener that provides the required preload during assembly and maintains the stability of the connection. Unlike conventional bolts, tension control bolts have a special controllable preload section, the purpose of which is to ensure the required tightening force at the connection. The basic purpose of tension control bolts is to achieve reliable tightening in assembly and structural connections. They are often used in applications that require higher tightening forces, prevent loosening, or need to withstand vibration and shock.

[0003] Publication No. CN206607880U discloses a one-way detachable tension bolt, which includes a nut fixing part and a sleeve embedded in the wall, the nut fixing part includes a nut, a screw, and steel bars integrally formed with the nut are fixed on both sides of the nut, one end of the sleeve is provided with an external thread, which is spirally connected to the nut with an internal thread, the inner surface of the sleeve is provided with an internal thread, one end of the screw is spirally connected to the sleeve with an internal thread, and the other end of the screw is provided with a four-corner for a wrench to rotate; the tension bolt also includes a steel pipe, a clip with a through hole in the center, and a clip nut, the side of the clip opposite to the steel pipe is provided with a slot for inserting one side of the steel pipe, the screw passes through the center of the clip nut and the clip, and rotates clockwise into the sleeve. After the tension bolt under this structure is taken out, the wall surface can only be blocked and painted. Under long-term use, the internal channel may be squeezed and collapsed by hand and damp, which poses a safety hazard to the wall. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art, the embodiments of the present application provide a one-way detachable tension bolt, which solves the problem that the internal passage of the one-way detachable tension bolt in the prior art cannot be completely blocked after being taken out, which easily poses a safety hazard to the use of the wall. By setting a bolt structure corresponding to the embedded part, with the help of the bolt shell in the bolt structure being engaged with the reserved part, the rotating bolt can first pre-install concrete or other colloids for sealing inside itself, and then screw the rotating bolt into the bolt shell. When it needs to be taken out, the rotating bolt can be rotated to drive the bolt shell to screw out of the embedded part, and at the same time the piston squeezes out the sealing material inside the rotating bolt. As the bolt shell is taken out, the internal space is sealed.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a one-way detachable tension bolt, comprising a wall, an embedded part is provided inside the wall, a bolt structure corresponding to the embedded part and extending out of the wall is provided on one side of the embedded part, the bolt structure comprises a bolt housing arranged inside the embedded part, a rotating bolt corresponding to the bolt housing is provided inside the bolt housing, and a piston is provided inside the rotating bolt.

[0006] Preferably, a side of the embedded part close to the bolt structure is provided with an embedded shell sleeved on the outside of the bolt shell, and the length of the embedded shell is the same as the disposal distance from the embedded part to the wall surface.

[0007] Preferably, the outer surfaces of the bolt housing and the rotating bolt are both provided with threads, and the interiors of the embedded housing and the bolt housing are both provided with thread grooves corresponding to the threads.

[0008] Preferably, the rotating bolt is a hollow tube body, and the inner side wall of the rotating bolt is provided with symmetrically distributed arc-shaped limiting grooves, and a sliding groove connected to the limiting groove is provided on one side of the limiting groove close to the inner space of the rotating bolt.

[0009] Preferably: the diameter of the piston is the same as the inner diameter of the rotating bolt, and both sides of the piston are connected with limit pieces corresponding to the limit grooves and the sliding grooves. The side of the piston away from the wall is connected to a rotating handle through a connecting rod, and the length of the connecting rod is greater than the length of the rotating bolt.

[0010] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0011] The utility model provides a bolt structure corresponding to the embedded part, and with the help of the bolt shell in the bolt structure being engaged with the reserved part, the rotating bolt can first pre-install concrete or other colloids for sealing inside itself, and then the rotating bolt is screwed into the bolt shell. When it needs to be taken out, the rotating bolt can be rotated to drive the bolt shell to screw out the embedded part, and at the same time the piston squeezes out the sealing material inside the rotating bolt. As the bolt shell is taken out, the internal space is sealed.

[0012] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional schematic diagram of a one-way detachable tension bolt of the utility model;

[0014] Figure 2This is a cross-sectional view of a wall with a one-way detachable tension bolt according to the utility model;

[0015] Figure 3 It is a cross-sectional view of a bolt structure of a one-way detachable tension bolt of the utility model;

[0016] Figure 4 The utility model is a cross-sectional view of a rotating bolt of a one-way detachable tension bolt.

[0017] As shown in the figure:

[0018] 1. Wall;

[0019] 11. Embedded parts; 12. Embedded housing; 13. Thread; 14. Thread groove;

[0020] 2. Bolt structure;

[0021] 21. Bolt housing; 22. Rotating bolt; 23. Piston; 24. Limiting groove; 25. Sliding groove; 26. Limiting piece; 27. Connecting rod; 28. Rotating handle. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention; the terms used in the specification of the present invention are only for the purpose of describing specific implementation methods and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0025] like Figure 1 and Figure 2As shown, the utility model provides a one-way detachable tension bolt, including a wall 1, an embedded part 11 is arranged inside the wall 1, an embedded shell 12 is arranged on the side of the embedded part 11 close to the bolt structure 2 and is sleeved on the outside of the bolt shell 21, the length of the embedded shell 12 is the same as the disposal distance from the embedded part 11 to the surface of the wall 1, one side of the embedded part 11 is provided with a bolt structure 2 corresponding to the embedded part 11 and extending out of the wall 1, the bolt structure 2, the bolt structure 2 includes a bolt shell 21 arranged inside the embedded part 11, a rotating bolt 22 corresponding to the bolt shell 21 is arranged inside the bolt shell 21, a piston 23 is arranged inside the rotating bolt 22, the outer surfaces of the bolt shell 21 and the rotating bolt 22 are provided with threads 13, and the embedded shell 12 and the bolt shell 21 are provided with thread grooves 14 corresponding to the threads 13.

[0026] In this embodiment, by setting a bolt structure 2 corresponding to the embedded part 11, with the help of the bolt housing 21 in the bolt structure 2 being engaged with the reserved part 11, the rotating bolt 22 can first pre-install concrete or other colloids used for sealing inside itself, and then screw the rotating bolt 22 into the bolt housing 21. When it needs to be taken out, the rotating bolt 22 can be rotated to drive the bolt housing 21 to screw out the embedded part 11. At the same time, the piston 23 squeezes out the sealing material inside the rotating bolt 22. As the bolt housing 21 is taken out, the internal space is sealed.

[0027] like Figure 3 and Figure 4 As shown, the rotating bolt 22 is a hollow tube body, and the inner side wall of the rotating bolt 22 is provided with symmetrically distributed arc-shaped limit grooves 24. The side of the limit groove 24 close to the internal space of the rotating bolt 22 is provided with a sliding groove 25 connected to the limit groove 24. The diameter of the piston 23 is the same as the inner diameter of the rotating bolt 22. The two sides of the piston 23 are connected with limit members 26 corresponding to the limit groove 24 and the sliding groove 25. The side of the piston 23 away from the wall 1 is connected to a rotating handle 28 through a connecting rod 27. The length of the connecting rod 27 is greater than the length of the rotating bolt 22.

[0028] In this embodiment, with the help of the limit groove 24 and the sliding groove 25 inside the rotating bolt 22, when the rotating handle 28 drives the limit member 26 to rotate, the entire rotating bolt 22 can be driven to rotate; when the bolt housing 21 is rotated to remove it, as the removal length changes, the rotating handle 28 is adaptively pushed to squeeze out the internal sealing material.

[0029] When in use, preparation work: first, install the embedded part 11 on the wall 1. The distance between the embedded part 11 and the surface of the wall 1 should be the same as the length of the embedded shell 12; install the bolt structure 2: the embedded shell 12 is sleeved on one side of the bolt structure 2. The bolt structure 2 includes a bolt shell 21, a rotating bolt 22 and a piston 23. The outer surfaces of the bolt shell 21 and the rotating bolt 22 are both threaded 13, which are engaged with the thread groove 14 of the embedded shell 12 and the wall 1. The rotating bolt 22 is a hollow tube with an arc-shaped limit groove 24 on the inner side wall. The limit groove 24 and the sliding groove 25 are used to limit the movement range of the piston 23; pre-installed plugging material: concrete or other colloid materials used for plugging can be pre-installed in the hollow tube of the rotating bolt 22; install the rotating handle: connect the connecting rod 27 to the piston 23 and connect the rotating handle 28; complete the plugging: use the rotating handle 28 to rotate the rotating bolt 22 to drive the bolt housing 21 to be screwed out of the embedded part 11. At the same time, the movement of the piston 23 squeezes out the pre-installed plugging material to complete the plugging of the internal space.

[0030] Although the present invention has been disclosed as above in terms of preferred embodiments, it is not intended to limit the present invention. Anyone familiar with the technology may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be based on the definition of the claims.

Claims

1. A one-way detachable tension bolt, comprising a wall (1), characterized in that: An embedded part (11) is provided inside the wall (1); a bolt structure (2) corresponding to the embedded part (11) and extending out of the wall (1) is provided on one side of the embedded part (11); the bolt structure (2) comprises a bolt housing (21) disposed inside the embedded part (11); a rotating bolt (22) corresponding to the bolt housing (21) is provided inside the bolt housing (21); and a piston (23) is provided inside the rotating bolt (22).

2. The one-way detachable tension bolt according to claim 1, characterized in that: An embedded housing (12) sleeved on the outside of the bolt housing (21) is provided on one side of the embedded part (11) close to the bolt structure (2); the length of the embedded housing (12) is the same as the distance between the embedded part (11) and the surface of the wall (1).

3. The one-way detachable tension bolt according to claim 2, characterized in that: The outer surfaces of the bolt housing (21) and the rotating bolt (22) are both provided with threads (13), and the interiors of the embedded housing (12) and the bolt housing (21) are both provided with thread grooves (14) corresponding to and engaging with the threads (13).

4. The one-way detachable tension bolt according to claim 1, characterized in that: The rotating bolt (22) is a hollow tube body. The inner side wall of the rotating bolt (22) is provided with symmetrically distributed arc-shaped limiting grooves (24). A sliding groove (25) connected to the limiting groove (24) is provided on one side of the limiting groove (24) close to the inner space of the rotating bolt (22).

5. The one-way detachable tension bolt according to claim 4, characterized in that: The diameter of the piston (23) is the same as the inner diameter of the rotating bolt (22); both sides of the piston (23) are connected with stoppers (26) corresponding to the stop grooves (24) and the sliding grooves (25); the side of the piston (23) away from the wall (1) is connected with a rotating handle (28) via a connecting rod (27); the length of the connecting rod (27) is greater than the length of the rotating bolt (22).

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