Elbow bolt

Abstract

The bent bolt comprises a bent rod and bolt assemblies installed at the two ends of the bent rod, each bolt assembly comprises a connecting base, a threaded rod is fixedly connected to the outer wall of one side of each connecting base, a prism is fixedly connected to the outer wall of the other side of each connecting base, and edge grooves are formed in the two ends of each bent rod; and the prisms are inserted into the inner walls of the edge grooves. The prism is arranged on the threaded rod, the edge groove matched with the prism is formed in the bent rod, then the threaded rod is conveniently fixed to the bent rod, the two adjustable limiting blocks are arranged on the prism, the prism is conveniently fixed in the edge groove through the arrangement of the limiting blocks, and therefore the threaded rod can be conveniently and rapidly disassembled and assembled; and therefore, the threaded rod can be conveniently replaced when the thread on the threaded rod is damaged.

Description

Technical Field

[0001] The present application relates to the field of bolts, and in particular to an elbow bolt. Background Art

[0002] Embedded pipes refer to pipes that are pre-buried in construction projects for subsequent structural and process construction to facilitate future wiring. A large number of embedded pipe segments are used in the construction of subways. The embedded pipe segments are generally connected and installed through elbow bolts during the construction process.

[0003] In actual use, due to the special nature of the bolts, when the threads on the bolts are damaged, the existing elbow bolts need to be replaced as a whole. Usually, the elbow bolts are designed as stud bolts, and once the entire bolt is replaced, it will lead to material waste. Utility Model Content

[0004] In order to solve the problem that the existing elbow bolts need to be replaced as a whole due to thread damage, the present application provides an elbow bolt.

[0005] The elbow bolt provided in this application adopts the following technical solution:

[0006] A bent head bolt comprises a bent rod and a bolt assembly installed at both ends of the bent rod. The bolt assembly comprises a connecting seat, and a threaded rod is fixedly connected to the outer wall of one side of the connecting seat, and a prism is fixedly connected to the outer wall of the other side of the connecting seat. Both ends of the bent rod are provided with a prism groove, and the prism is inserted into the inner wall of the prism groove.

[0007] By adopting the above technical solution, an elbow bolt is formed by combining a bent rod and two bolt assemblies. The arrangement of the bolt assembly facilitates disassembly from the bent rod, thereby facilitating replacement of the bolt assembly when it is damaged. The cooperation between the prism in the bolt assembly and the rib groove on the bent rod facilitates the installation of the threaded rod on the bent rod.

[0008] An installation cavity is provided inside the prism, and an inner wall of the installation cavity is provided with two symmetrically arranged openings, and the inner walls of the two openings are both slidably connected to limit blocks.

[0009] By adopting the above technical solution, the installation cavity in the prism is provided to facilitate the sliding installation of the limit block, and the setting of the limit block facilitates the fixing of the prism in the prism groove.

[0010] The inner walls on both sides of the installation cavity are rotatably connected to a same screw rod, and the outer wall of the screw rod is screwed with a trapezoidal block, which is slidably connected to the inner wall of the installation cavity.

[0011] By adopting the above technical solution, the setting of the installation cavity facilitates the installation of the screw, and the setting of the screw facilitates the installation of the trapezoidal block. When the screw rotates, it directly drives the trapezoidal block to move, and the trapezoidal block is slidably connected in the installation cavity to prevent the trapezoidal block from rotating with the screw.

[0012] Both outer walls of the trapezoidal block are provided with sliding grooves, and the inner walls of the two sliding grooves are slidably connected with wedge plates.

[0013] By adopting the above technical solution, the sliding installation of the wedge-shaped plate is facilitated by the sliding groove on the trapezoidal block, and the two wedge-shaped plates are symmetrically arranged on the trapezoidal block.

[0014] One end of the two wedge-shaped plates is fixedly connected to the two limit blocks respectively, and one end of the prism is fixedly connected to a rubber pad.

[0015] By adopting the above technical solution, the sliding of the trapezoidal block can directly drive the movement of the wedge plate. When the wedge plate moves, it can easily drive the two limit blocks to move, thereby facilitating the disassembly and assembly of the prism from the bent rod. The provision of the rubber pad can reduce the wear between the prism and the rib groove.

[0016] The inner walls on both sides of the rib groove are provided with limiting grooves, and the specifications of the limiting grooves match those of the limiting blocks.

[0017] By adopting the above technical solution, the prism can be prevented from being removed from the prism groove by inserting the limiting block into the limiting groove.

[0018] A circular groove is formed at one end of the threaded rod away from the connecting seat, and a rotating part is rotatably connected to the inner wall of the circular groove.

[0019] By adopting the above technical solution, the circular groove in the screw is provided to facilitate the rotatable installation of the rotating part. The setting of the circular groove facilitates hiding the rotating part, and the cross-section of the rotating part is a regular hexagonal structure.

[0020] One end of the transmission shaft of the rotating part is fixedly connected to the screw rod, and a sealing cover is fixedly connected to the inner wall of the circular groove.

[0021] By adopting the above technical solution, the circular groove can be easily closed through the setting of the sealing cover, thereby facilitating the protection of the rotating part. The setting of the rotating part facilitates the rotation of the screw, which is driven by the rotating part to rotate the screw, thereby driving the two limit blocks to move.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. This application provides a prism on the threaded rod and a groove on the bent rod that matches the prism, thereby facilitating the fixing of the threaded rod to the bent rod. Furthermore, two adjustable stoppers are provided on the prism. The stoppers facilitate the fixing of the prism in the groove, thereby facilitating the quick disassembly and assembly of the threaded rod and facilitating the replacement of the threaded rod when the threads are damaged.

[0024] 2. This application sets a screw and a trapezoidal block on the prism. The screw rotates to drive the trapezoidal block to move, and then cooperates with the wedge plate to drive the two limit blocks to move. When the limit block is extended, it is convenient to fix the prism in the prism groove, thereby facilitating the disassembly and assembly of the prism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of an elbow bolt according to an embodiment of the present application;

[0026] Figure 2 This is a schematic diagram mainly showing the structure of a bolt assembly according to an embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the unfolded structure of the bolt assembly according to the embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of a prism cross-sectional structure mainly embodied in an embodiment of the present application;

[0029] Figure numerals: 1. bent rod; 2. bolt assembly; 3. rib groove; 4. limit groove; 5. connecting seat; 6. threaded rod; 7. prism; 8. limit block; 9. circular groove; 10. rotating part; 11. sealing cover; 12. mounting cavity; 13. screw; 14. wedge plate; 15. trapezoidal block; 16. rubber pad. DETAILED DESCRIPTION

[0030] The following is combined with Figures 1-4 This application is described in further detail.

[0031] The embodiment of the present application discloses an elbow bolt.

[0032] Reference Figure 1-3 , an elbow bolt, embedded pipe refers to the pipe pre-buried in the construction project for subsequent structure and process construction, which is convenient for future threading. A large number of embedded pipe segments are used in the construction process of the subway. The embedded pipe segments are generally connected and installed through elbow bolts during the construction process. It includes a bent rod 1 and a bolt assembly 2 installed at both ends of the bent rod 1. The elbow bolt is formed by the combination of the bent rod 1 and the bolt assembly 2;

[0033] Reference Figure 2-3, the bolt assembly 2 installed at both ends of the bent rod 1 includes a connecting seat 5, and a threaded rod 6 is fixedly connected to the outer wall of one side of the connecting seat 5, and a prism 7 is fixedly connected to the outer wall of the other side of the connecting seat 5. Both ends of the bent rod 1 are provided with a rib groove 3, and the prism 7 is inserted into the inner wall of the rib groove 3. The elbow bolt is formed by the combination of the bent rod 1 and the two bolt assemblies 2. The arrangement of the bolt assembly 2 is convenient for disassembly from the bent rod 1, and then it is convenient to replace the bolt assembly 2 when it is damaged. The cooperation between the prism 7 in the bolt assembly 2 and the rib groove 3 on the bent rod 1 facilitates the installation of the threaded rod 6 on the bent rod 1;

[0034] Reference Figure 3-4 , an installation cavity 12 is provided inside the prism 7 for installation of the auxiliary bolt assembly 2, and the inner wall of the installation cavity 12 is provided with two symmetrically arranged openings, the inner walls of the two openings are slidably connected to the limit blocks 8, the inner walls on both sides of the installation cavity 12 are rotatably connected to the same screw 13, and the outer wall of the screw 13 is screwed with a trapezoidal block 15, the trapezoidal block 15 is slidably connected to the inner wall of the installation cavity 12, and the outer walls of the trapezoidal block 15 are provided with sliding grooves on both sides, and the inner walls of the two sliding grooves are slidably connected with wedge plates 14, one end of the two wedge plates 14 is respectively fixedly connected to the two limit blocks 8, and one end of the prism 7 is fixedly connected to a rubber pad 16, and the inner walls of the prism groove 3 are provided with limit grooves 4, and the specifications of the limit grooves 4 match the specifications of the limit blocks 8;

[0035] During use, the setting of the mounting cavity 12 facilitates the installation of the screw 13, and the setting of the screw 13 facilitates the installation of the trapezoidal block 15. When the screw 13 rotates, it directly drives the trapezoidal block 15 to move. The trapezoidal block 15 is slidably connected in the mounting cavity 12 to prevent the trapezoidal block 15 from rotating with the screw 13. The sliding of the trapezoidal block 15 facilitates the direct movement of the wedge plate 14. When the wedge plate 14 moves, it facilitates the movement of the two limit blocks 8, thereby facilitating the disassembly and assembly of the prism 7 from the bent rod 1. The setting of the rubber pad 16 can reduce the wear between the prism 7 and the rib groove 3.

[0036] Reference Figure 3-4 A circular groove 9 is formed at one end of the threaded rod 6 away from the connecting seat 5, and the inner wall of the circular groove 9 is rotatably connected to a rotating part 10, one end of the transmission shaft of the rotating part 10 is fixedly connected to the screw 13, and the inner wall of the circular groove 9 is fixedly connected to a sealing cover 11.

[0037] During use, the circular groove 9 in the threaded rod 6 is provided to facilitate the rotatable installation of the rotating part 10. The setting of the circular groove 9 facilitates the hiding of the rotating part 10. The cross-section of the rotating part 10 is a regular hexagonal structure. The setting of the sealing cover 11 facilitates the sealing of the circular groove 9, thereby facilitating the protection of the rotating part 10. The setting of the rotating part 10 facilitates the rotation of the screw rod 13.

[0038] The implementation principle of an elbow bolt in an embodiment of the present application is as follows: during use, when the bolt assembly 2 on the elbow bolt is damaged, the bolt assembly 2 is first removed from the bent rod 1. During disassembly, the sealing cover 11 at one end of the threaded rod 6 is first removed, and then the rotating part 10 is driven to rotate by a socket wrench. When the rotating part 10 rotates, it directly drives the screw rod 13 to rotate, and when the screw rod 13 rotates, it directly drives the trapezoidal block 15 to move. When the trapezoidal block 15 moves upward, the two limit blocks 8 are directly pulled toward each other through the wedge block plate 14. When the limit block 8 is received into the installation cavity 12, the prism 7 can be removed from the prism groove 3. When the limit block 8 is pulled out of the limit groove 4, a new threaded rod 6 can be replaced. During installation, the two limit blocks 8 are driven to be inserted into the limit groove 4 to fix the prism 7 on the bent rod 1.

[0039] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An elbow bolt, comprising a bent rod (1) and bolt assemblies (2) mounted at both ends of the bent rod (1), characterized in that: The bolt assembly (2) includes a connecting seat (5), and a threaded rod (6) is fixedly connected to an outer wall of one side of the connecting seat (5), and a prism (7) is fixedly connected to an outer wall of the other side of the connecting seat (5). Both ends of the bent rod (1) are provided with prism grooves (3), and the prism (7) is inserted into the inner wall of the prism groove (3).

2. The elbow bolt according to claim 1, characterized in that: The interior of the prism (7) is provided with a mounting cavity (12), and the inner wall of the mounting cavity (12) is provided with two symmetrically arranged openings, and the inner walls of the two openings are both slidably connected to the limiting block (8).

3. The elbow bolt according to claim 2, characterized in that: The inner walls on both sides of the installation cavity (12) are rotatably connected to a same screw rod (13), and the outer wall of the screw rod (13) is screwed to a trapezoidal block (15), and the trapezoidal block (15) is slidably connected to the inner wall of the installation cavity (12).

4. The elbow bolt according to claim 3, characterized in that: Both outer walls of the trapezoidal block (15) are provided with sliding grooves, and the inner walls of the two sliding grooves are slidably connected with wedge plates (14).

5. The elbow bolt according to claim 4, characterized in that: One end of the two wedge-shaped plates (14) is fixedly connected to the two limit blocks (8) respectively, and one end of the prism (7) is fixedly connected to a rubber pad (16).

6. The elbow bolt according to claim 5, characterized in that: Limiting grooves (4) are provided on both inner walls of the rib groove (3), and the specifications of the limiting grooves (4) match those of the limiting blocks (8).

7. The elbow bolt according to claim 6, characterized in that: A circular groove (9) is formed at one end of the threaded rod (6) away from the connecting seat (5), and a rotating portion (10) is rotatably connected to the inner wall of the circular groove (9).

8. The elbow bolt according to claim 7, characterized in that: One end of the transmission shaft of the rotating part (10) is fixedly connected to the screw (13), and a sealing cover (11) is fixedly connected to the inner wall of the circular groove (9).

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