Retaining bolt and assembly thereof

Abstract

The utility model discloses a retaining bolt and an assembly thereof, and belongs to the technical field of bolts. The bolt comprises a bolt head and a bolt rod integrally formed at the bottom of the bolt head, rectangular grooves are symmetrically formed in the outer wall of the bolt rod, connecting rods are installed at the bottoms of the interiors of the two rectangular grooves respectively, and limiting holes are formed in the tops of one sides of the two connecting rods respectively. Through the structural design of the rectangular groove, the connecting rod, the connecting block and the limiting rod, after the device is connected with an object, the bolt rod can be more stably connected with the connected object, the situation that the bolt rod is loosened under the action of vibration or external force of the object is effectively prevented, and the service life of the bolt rod is prolonged. And compared with a unique machining and adjusting mode of Down threads and Spiralock threads, the device has the advantage of being relatively simple in machining.

Description

Technical Field

[0001] The utility model belongs to the technical field of bolts, in particular to a backstop bolt and a component thereof. Background Art

[0002] A bolt is a fastener consisting of a head and a screw. It is usually used in conjunction with a nut to fasten two parts with through holes. It is widely used in various machines and equipment to achieve fastening connections between parts. In order to further prevent the loosening of the bolts due to mechanical vibration, a number of anti-loosening bolts, i.e., stop bolts, have appeared on the market. They mainly use the Tang thread method of two nuts with opposite rotation directions, and the Spirax thread method of adjusting the shape of the thread.

[0003] However, during the processing of the existing backstop bolts, the thread needs to be adjusted to make the thread into a fish scale shape (Tang's thread) or grind the thread (Spirit thread), which leads to reduced thread strength. At the same time, the processing requirements are relatively high. In addition, after long-term use, thread stripping and other phenomena will occur, which affects the strength of the bolt and the difficulty of replacement. Therefore, a backstop bolt and its components are proposed to address the above situation. Utility Model Content

[0004] The utility model aims to provide a backstop bolt and an assembly thereof, which solves the existing problems through the design of structures such as a rectangular groove, a connecting rod, a connecting block and a limiting rod.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a back-stop bolt, comprising a bolt head and a bolt rod integrally formed at the bottom of the bolt head, wherein rectangular grooves are symmetrically provided on the outer wall of the bolt rod, connecting rods are respectively installed at the bottoms of two rectangular grooves, and limiting holes are respectively provided at the tops of one side of the two connecting rods.

[0007] Furthermore, short shafts are respectively provided at the bottoms of the two corresponding sides of the rectangular groove, and the two short shafts are rotatably connected with a connecting rod, and the cross-sectional projection of the connecting rod is "L" shaped.

[0008] A component for connecting a stop bolt, the component includes a connecting block, a groove formed on the connecting block, an installation groove, and a limit rod installed on the installation groove. A mounting groove is formed on one side of the groove, a short rod extending to the outside of the connecting block is installed through the inside of the installation groove, a spring is provided on the outer wall of the short rod located in the installation groove, one end of the short rod is fixedly connected to the limit rod, and one end of the limit rod is inserted into the inside of the limit hole.

[0009] Furthermore, the diameter of the limiting rod is greater than the diameter of the short rod, and the two ends of the spring respectively conflict with the inner wall of the installation groove and one end of the limiting rod.

[0010] Furthermore, a through hole is formed on one side of the outside of the connection block for the short rod to extend to the outside of the connection block, the radius of the through hole matches the radius of the short rod, and a handle is formed at one end of the short rod located outside the connection block.

[0011] The utility model has the following beneficial effects:

[0012] The utility model adopts the structural design of the rectangular groove, the connecting rod, the connecting block and the limiting rod. After the device is used to connect with the object, the bolt rod can form a more stable connection with the connected object, preventing the bolt rod from loosening due to the external force of the object. Compared with the unique processing and adjustment methods of the Tang thread and the Spirax thread, the processing of the device is relatively simple. In addition, the design of the rectangular groove can store the connecting rod inside the rectangular groove in the early stage of installing the bolt rod, thereby ensuring that the bolt rod can smoothly complete the connection with the object to be connected, and can effectively avoid interference in the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the assembly structure of the connecting rod and the connecting block of the utility model;

[0016] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0017] Figure 4 It is a schematic diagram of the overall structure of the connecting block of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Bolt head; 2. Bolt rod; 3. Rectangular groove; 4. Connecting rod; 401. Limiting hole; 5. Connecting block; 501. Groove; 502. Mounting groove; 6. Short rod; 7. Spring; 8. Limiting rod. DETAILED DESCRIPTION

[0020] 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 of 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.

[0021] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] See also Figure 1-4 As shown, the utility model is a back-stop bolt, comprising a bolt head 1 and a bolt rod 2 integrally formed at the bottom of the bolt head 1, rectangular grooves 3 are symmetrically opened on the outer wall of the bolt rod 2, connecting rods 4 are respectively installed at the bottom of the two rectangular grooves 3, and limiting holes 401 are respectively opened at the top of one side of the two connecting rods 4.

[0023] Among them, short shafts are respectively arranged at the bottoms of the two corresponding sides of the rectangular groove 3, and the two short shafts are rotatably connected with a connecting rod 4, and the cross-sectional projection of the connecting rod 4 is "L" shaped.

[0024] A component for connecting a stop bolt, the component includes a connecting block 5, a groove 501 opened on the connecting block 5, an installation groove 502 and a limiting rod 8 installed on the installation groove 502. A mounting groove 502 is opened on one side inside the groove 501, and a short rod 6 extending to the outside of the connecting block 5 is installed inside the installation groove 502. A spring 7 is provided on the outer wall of the short rod 6 located in the installation groove 502, and one end of the short rod 6 is fixedly connected to the limiting rod 8, and one end of the limiting rod 8 is inserted into the inside of the limiting hole 401. Furthermore, when it needs to be used in conjunction with a nut, the component can also be installed on the nut to prevent the bolt and nut from loosening.

[0025] The diameter of the limiting rod 8 is greater than the diameter of the short rod 6 , and the two ends of the spring 7 are in conflict with the inner wall of the installation groove 502 and one end of the limiting rod 8 respectively.

[0026] Among them, a through hole is opened on one side of the outside of the connecting block 5 for the short rod 6 to extend to the outside of the connecting block 5. The radius of the through hole is adapted to the radius of the short rod 6. The short rod 6 is provided with a handle at one end located outside the connecting block 5.

[0027] A specific application of this embodiment is: first, thread the bolt rod 2 and the object to be connected, then connect one end of the connecting block 5 to the object to be connected, then move the connecting rod 4 to make the connecting rod 4 rotate out of the rectangular groove 3, and then pull the short rod 6 toward the end away from the connecting block 5. The movement of the short rod 6 will drive the limiting rod 8 to move and squeeze the spring 7, and then insert one end of the connecting rod 4 into the groove 501, and then release the short rod 6. Under the resetting action of the spring 7, the limiting rod 8 is inserted into the limiting hole 401 to achieve the limiting of the connecting rod 4.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A back-stop bolt, comprising a bolt head (1) and a bolt rod (2) integrally formed at the bottom of the bolt head (1), characterized in that: The outer wall of the bolt rod (2) is symmetrically provided with rectangular grooves (3), the bottoms of the two rectangular grooves (3) are respectively installed with connecting rods (4), and the tops of one side of the two connecting rods (4) are respectively provided with limiting holes (401).

2. A stop bolt according to claim 1, characterized in that: Short shafts are respectively arranged at the bottoms of the two corresponding sides of the rectangular groove (3), and the two short shafts are rotatably connected to a connecting rod (4).

3. A stop bolt according to claim 1, characterized in that: The cross-sectional projection of the connecting rod (4) is in an "L" shape.

4. An assembly for connecting the stop bolts according to any one of claims 1 to 3, characterized in that: The assembly comprises a connecting block (5), a groove (501) provided on the connecting block (5), a mounting groove (502), and a limiting rod (8) installed on the mounting groove (502); a mounting groove (502) is provided on one side of the interior of the groove (501); a short rod (6) extending to the outside of the connecting block (5) is installed through the interior of the mounting groove (502); a spring (7) is sleeved on the outer wall of the short rod (6) located in the mounting groove (502); one end of the short rod (6) is fixedly connected to the limiting rod (8); and one end of the limiting rod (8) is inserted into the interior of the limiting hole (401).

5. A stop bolt assembly according to claim 4, characterized in that: The diameter of the limiting rod (8) is greater than the diameter of the short rod (6), and the two ends of the spring (7) respectively contact the inner wall of the installation groove (502) and one end of the limiting rod (8).

6. A stop bolt assembly according to claim 4, characterized in that: A through hole is provided on one side of the outside of the connection block (5) for the short rod (6) to extend to the outside of the connection block (5); the radius of the through hole matches the radius of the short rod (6); and a handle is provided at one end of the short rod (6) located outside the connection block (5).

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