Combined bolt

Abstract

The utility model relates to a combined bolt, which relates to the technical field of bolts and comprises a bolt body, a nut fixedly mounted at the upper end of the bolt body, a spring washer and a flat washer sleeved on the bolt body, a rotating block clamped on the nut and a hexagonal groove arranged on the nut. The rotating block and the nut are clamped through the hexagonal groove, a clamping groove is formed in the rotating block, a clamping assembly used for clamping the rotating block is arranged on the nut, an adjusting assembly is arranged on the bolt body, and through the adjusting assembly and the bolt body, the rotation direction of the screw and the rotation direction of the bolt body are opposite, so that the structure is fixed more firmly; meanwhile, the length of the structure can be flexibly adjusted according to the fixing requirement, the applicability of the structure is improved, the rotating block can be conveniently fixed through a clamping assembly, a hexagonal groove and a clamping groove, when the structure is installed and detached, a second cross-shaped groove is prone to being damaged, the rotating block can be replaced, and the service life of the structure is prolonged.

Description

Technical Field

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

[0002] A combined bolt refers to a three-component assembly in which an external hexagon bolt is combined with a spring washer and a flat washer by rolling threads and fastening them together. The combined bolt is also called an external hexagon combined screw or a hexagon combined bolt. According to different materials, the combined bolt can be divided into various types such as stainless steel, iron, and carbon steel. There is also a hexagon head three-component bolt, which is composed of an external hexagon bolt with a cross recess and a spring washer and a flat washer. The material can be iron, carbon steel, or stainless steel. Among them, the stainless steel cross hexagon three-component bolt has types such as stainless steel 201, stainless steel 304, and stainless steel 316. The cross recess hexagon head three-component screw is also a common combined bolt, which is composed of an external hexagon bolt with a cross and a flat washer and a spring washer. These bolts are widely used in various occasions where fixing and connecting are required and are favored because of their simple structure and convenient installation. However, some existing combined bolts are not convenient to flexibly adjust the length of the bolt according to the installation requirements, which affects their applicability.

[0003] For example, the publication number is CN221097131U, a combined bolt, including a threaded rod, and a nut is fixedly connected to the upper surface of the threaded rod. First, through the setting of the nut, the nut can be rotated by a wrench to drive the threaded rod to rotate. Then, through the setting of the hexagonal groove on the nut, a hexagonal wrench can be used to drive the nut to rotate to drive the threaded rod to rotate without a wrench. Then, through the setting of the cross groove inside the hexagonal groove, a screwdriver can be used to drive the nut to rotate, so that the threaded rod rotates. In this way, the tools used for installing the bolt are not single. Then, through the setting of the first gasket and the second gasket, the bolt connection can be made more stable. Through the setting of the rubber ring inside the placement groove, the clamping of the object can be made more stable.

[0004] When the combined bolt disclosed in the above document is in use, it is not convenient to flexibly adjust the length of the bolt according to the installation requirements, which affects its applicability. Summary of the Utility Model

[0005] To overcome the technical defects existing in the prior art, the utility model provides a combined bolt, which has the advantages of flexibly adjusting the length of the structure and improving the applicability of the structure.

[0006] The technical solution adopted by the utility model is: including a bolt body, a nut is fixedly installed at the upper end of the bolt body, a spring washer and a flat washer are sleeved on the bolt body, a rotating block is clamped on the nut, a clamping component for clamping the rotating block is arranged on the nut, and an adjusting component is arranged on the bolt body.

[0007] Preferably, in order to facilitate the installation of the clamping component, a hexagonal groove is formed on the nut, the rotating block is clamped with the nut through the hexagonal groove, a clamping groove is formed on the rotating block, a circular groove is formed on the lower surface of the rotating block, square grooves are formed on the nut in an array arrangement, and a limiting groove is formed on the inner upper part of the square groove.

[0008] Preferably, in order to facilitate the installation of the adjusting component, an installation groove is formed on the bolt body, and a threaded groove is formed inside the installation groove.

[0009] Preferably, in order to facilitate the movement of the wedge-shaped block, the clamping component includes a wedge-shaped block, the wedge-shaped block is slidably clamped inside the square groove, the lower end of the wedge-shaped block is slidably clamped inside the limiting groove, one end of the wedge-shaped block coincides with the clamping groove, a moving rod is fixedly installed on the wedge-shaped block, and the moving rod is inserted into the nut.

[0010] Preferably, in order to facilitate the reset of the wedge-shaped block, a spring is sleeved on the moving rod, and both ends of the spring are fixedly connected with the inner wall of the square groove and the wedge-shaped block respectively. By pulling the moving rod, the wedge-shaped block moves and the spring is compressed.

[0011] Preferably, in order to facilitate the adjustment of the length of this structure, the adjusting component includes a screw, the screw is threadedly connected to the bolt body, the screw is threadedly connected to the bolt body through the threaded groove, and the rotation directions of the screw and the bolt body are opposite. A rotating rod is fixedly installed at the upper end of the screw, the upper end of the rotating rod is clamped inside the circular groove, and a first cross groove is formed at the upper end of the rotating rod. A limiting plate is fixedly installed on the rotating rod. By rotating the rotating rod, the screw rotates and the screw extends out of the bolt body.

[0012] Preferably, in order to facilitate the rotation of the bolt body, a second cross groove is formed on the rotating block.

[0013] Preferably, in order to facilitate the removal of the screw from the bolt body, a circular hole is formed at the lower end of the bolt body.

[0014] The beneficial effects of the present utility model are as follows: The rotating block can be fixed conveniently through the clamping component, the hexagonal groove and the clamping groove. When installing this structure, it is easy to damage the second cross groove during disassembly, and the rotating block can be replaced, which improves the service life of the present utility model. Through the adjusting component and the bolt body, the rotation directions of the screw and the bolt body are opposite, making the fixation of this structure more firm. At the same time, the length of this structure can be flexibly adjusted according to the fixation requirements, which improves the applicability of this structure. Description of the Drawings

[0015] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0016] Figure 2 It is a side view schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of a part of the structure of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the rotating block of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the adjustment component of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the clamping assembly of the utility model.

[0021] Explanation of the accompanying drawings: In the figure: 1, bolt body; 2, nut; 3, rotating block; 4, clamping assembly; 401, wedge block; 402, moving rod; 403, spring; 5, adjustment assembly; 501, screw; 502, rotating rod; 503, limiting plate; 504, first cross groove; 6, hexagonal groove; 7, clamping groove; 8, circular groove; 9, square groove; 10, limiting groove; 11, installation groove; 12, threaded groove; 13, second cross groove; 14, circular hole. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings:

[0023] like Figures 1 - 6 As shown, this embodiment provides a combined bolt, including a bolt body 1, a nut 2 is fixedly installed on the upper end of the bolt body 1, a nut 2 is fixedly installed on the upper end of the bolt body 1, a spring washer and a flat washer are sleeved on the bolt body 1, a rotating block 3 is clamped on the nut 2, and a clamping component 4 for clamping the rotating block 3 is provided on the nut 2. The clamping component 4 is used to facilitate the installation and disassembly of the rotating block 3, and wear is avoided during the installation and disassembly of the structure, which affects the installation of the structure. An adjustment component 5 is provided on the bolt body 1.

[0024] The nut 2 is provided with a hexagonal groove 6. The rotating block 3 is clamped with the nut 2 through the hexagonal groove 6. The rotating block 3 is provided with a clamping groove 7. The lower surface of the rotating block 3 is provided with a circular groove 8. The nut 2 is provided with square grooves 9 arranged in an array. A limiting groove 10 is provided inside the square groove 9. The bolt body 1 is provided with a mounting groove 11. A threaded groove 12 is provided inside the mounting groove 11. The clamping component 4 includes a wedge-shaped block 401. The wedge-shaped block 401 is slidably clamped inside the square groove 9. The lower end of the wedge-shaped block 401 is slidably clamped inside the limiting groove 10. The limiting groove 10 facilitates the limitation of the wedge-shaped block 401. One end of the wedge-shaped block 401 coincides with the clamping groove 7. A moving rod 402 is fixedly installed on the wedge-shaped block 401. The moving rod 402 is inserted into the nut 2. A spring 403 is sleeved on the moving rod 402. Both ends of the spring 403 are fixedly connected to the inner wall of the square groove 9 and the wedge-shaped block 401 respectively. By pulling the moving rod 402, the wedge-shaped block 401 moves and the spring 403 is compressed, thereby facilitating the removal of the rotating block 3, facilitating the replacement of the rotating block 3, and at the same time facilitating the operation of the anti-slip component.

[0025] The adjusting component 5 includes a screw 501. The screw 501 is threadedly connected to the bolt body 1. The screw 501 is threadedly connected to the bolt body 1 through the threaded groove 12, and the rotation directions of the screw 501 and the bolt body 1 are opposite. The upper end of the screw 501 is fixedly installed with a rotating rod 502. The upper end of the rotating rod 502 is clamped inside the circular groove 8, and a first cross groove 504 is provided at the upper end of the rotating rod 502. A limiting plate 503 is fixedly installed on the rotating rod 502. The limiting plate 503 facilitates the limitation of the screw 501. By rotating the rotating rod 502, the screw 501 rotates and the screw 501 extends out of the bolt body 1. A second cross groove 13 is provided on the rotating block 3. A circular hole 14 is provided at the lower end of the bolt body 1. Through the circular hole 14, it is convenient for the screw 501 to move out of the bolt body 1, thereby adjusting the length of this structure and improving the applicability of the present utility model.

[0026] When the utility model is in use, it is clamped with the second cross groove 13 through a screwdriver, the bolt body 1 rotates, the pull rod is pulled, the wedge-shaped block 401 moves, the spring 403 is compressed, the wedge-shaped block 401 is separated from the rotating block 3, and the rotating block 3 is separated from the nut 2. Then, it is clamped with the first cross groove 504 through a screwdriver. The screwdriver is rotated, the drill shaft rotates, the screw 501 rotates, and through the circular hole 14, the screw 501 moves out of the bolt body 1, thereby adjusting the length of the structure, improving the applicability of the utility model. At the same time, it is convenient to fix the screw 501, improving the fixing stability of the utility model. After the installation is completed, the rotating block 3 is clamped in the hexagonal groove, the wedge-shaped block 401 moves, and the spring 403 is compressed. When the ground of the rotating block 3 contacts the hexagonal groove, since the wedge-shaped block 401 corresponds to the clamping groove 7, the force applied to the wedge-shaped block 401 is cancelled, and under the action of the elastic restoring force of the spring 403, the wedge-shaped block 401 is clamped with the clamping groove 7.

[0027] The above shows and describes the basic principles, main features and characteristics of the invention. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the invention, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A combined bolt, comprising a bolt body (1), a nut (2) being fixedly mounted on the upper end of the bolt body (1), a spring washer and a flat washer being sleeved on the bolt body (1), characterized in that: A rotating block (3) is clamped on the nut (2), a clamping assembly (4) for clamping the rotating block (3) is provided on the nut (2), and an adjusting assembly (5) is provided on the bolt body (1).

2. The combined bolt according to claim 1, characterized in that: The nut (2) is provided with a hexagonal groove (6), the rotating block (3) and the nut (2) are snap-fitted via the hexagonal groove (6), the rotating block (3) is provided with a snap-fitting groove (7), the lower surface of the rotating block (3) is provided with a circular groove (8), the nut (2) is provided with square grooves (9) arranged in an array, and a limiting groove (10) is provided inside the square groove (9).

3. The combined bolt according to claim 2, characterized in that: The bolt body (1) is provided with a mounting groove (11), and a thread groove (12) is provided inside the mounting groove (11).

4. The combined bolt according to claim 3, characterized in that: The clamping assembly (4) comprises a wedge block (401), wherein the wedge block (401) is slidably clamped in the square groove (9), and the lower end of the wedge block (401) is slidably clamped in the limit groove (10), one end of the wedge block (401) is matched with the clamping groove (7), and a moving rod (402) is fixedly mounted on the wedge block (401), and the moving rod (402) is plugged into the nut (2).

5. The combined bolt according to claim 4, characterized in that: A spring (403) is sleeved on the moving rod (402), and two ends of the spring (403) are respectively fixedly connected to the inner wall of the square groove (9) and the wedge-shaped block (401).

6. The combined bolt according to claim 3, characterized in that: The adjustment assembly (5) comprises a screw (501), the screw (501) being threadedly connected to the bolt body (1), the screw (501) being threadedly connected to the bolt body (1) via the thread groove (12), and the screw (501) and the bolt body (1) having opposite rotation directions, a rotating rod (502) being fixedly mounted on the upper end of the screw (501), the upper end of the rotating rod (502) being clamped inside the circular groove (8), a first cross groove (504) being formed on the upper end of the rotating rod (502), and a limiting plate (503) being fixedly mounted on the rotating rod (502).

7. The combined bolt according to claim 1, characterized in that: The rotating block (3) is provided with a second cross groove (13).

8. The combined bolt according to claim 1, characterized in that: A circular hole (14) is formed at the lower end of the bolt body (1).

Images