Clamp bolt structure

Abstract

The utility model relates to a clamp bolt structure which is characterized by comprising a screw rod and a screw cap which are integrally arranged, a protruding guide block is arranged at the bottom of the screw cap, threads are arranged on the periphery of the screw rod, a plurality of jacking blocks capable of moving in the radial direction are arranged on the guide block, and the jacking blocks are evenly distributed along the circumference. The nut is connected with a driving assembly, and the driving assembly is used for driving the jacking block to be jacked out in the radial direction. The utility model has the following advantage and effect: the anti-loosening device is not easy to loosen in the long-time use process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp bolt, specifically to a clamp bolt structure. BACKGROUND

[0002] The clamp is a kind of connecting device for connecting pipe fittings with grooves, valves and pipeline accessories, and is used for tightening clamp connection between quick couplings, with good performance, high sealing degree and simple installation, and the clamp bolt is the key part for fixing and locking the clamp.

[0003] At present, the clamp bolt includes a guide section and a threaded section, and the guide section is arranged to guide the bolt during insertion into the clamp slot, so that the threaded section is subsequently screwed into the threaded slot of the clamp.

[0004] For example, the Chinese patent technical document with publication number CN220791713U discloses a clamp bolt, which includes a head, a square limiting block protruding from the bottom surface of the head, a rod body protruding from the middle of the bottom surface of the square limiting block, and an external thread formed on the surface of the rod body.

[0005] In the above technical solution, the arc design on the square limiting block can reduce the friction when the clamp bolt is inserted into the clamp slot, thereby facilitating the insertion of the clamp bolt and improving the assembly efficiency. However, in actual use, it is found that due to the reduction of the friction between the clamp bolt and the clamp slot, the clamp bolt is prone to relative movement when subjected to external force, thereby causing loosening. SUMMARY

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a clamp bolt structure that can prevent loosening during long-term use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a clamp bolt structure, which includes a screw rod and a nut arranged integrally, the nut is provided with a protruding guide block at the bottom, the outer periphery of the screw rod is provided with a thread, the guide block is provided with a top pressing block that can move radially, the top pressing blocks are multiple and evenly distributed in a circle, the nut is connected with a driving assembly, and the driving assembly is used to drive the top pressing block to move radially.

[0008] The utility model is further provided as follows: the driving assembly includes an adjusting rod, the nut is fixed with a sleeve, the inner wall of the sleeve is provided with a thread, the adjusting rod can be threadedly connected with the sleeve, the nut is provided with a connecting groove extending to the guide block, and the adjusting rod can move in the vertical direction in the connecting groove by rotating.

[0009] The utility model further sets up: the guide block is equipped with the through hole with the connecting groove intercommunication, the through hole is fixed with the mounting bushing, the mounting bushing is equipped with the installation groove, the installation groove is equipped with the spring, the spring one end is fixed in the installation groove groove bottom, one end is fixed in the top pressure block, the mounting bushing is equipped with the through let -out hole, the top pressure block passes let -out hole and extends to the connecting groove.

[0010] The utility model further sets up: the adjusting rod is located the side end part towards the connecting groove is equipped with the coupling side wall, the coupling side wall is reduced in diameter in proper order along the direction of being away from the connecting groove.

[0011] The utility model further sets up: the edge line place of guide block is rounded.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] By setting up the top pressure block that can move along the radial direction on the guide block, after inserting the guide block into the clamping groove of the clamp, the top pressure block can be pressed in the clamping groove by driving assembly and driving the top pressure block to eject along the radial direction, so that the normal pressure of the guide block to the clamping groove can be increased, thereby the corresponding friction can be increased, so that the greater friction needs to be overcome when the clamp bolt moves relatively, and then the loosening in the process of long time use can be prevented. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is whole structure schematic diagram (one) of the utility model;

[0015] Fig. 2 It is whole structure schematic diagram (two) of the utility model;

[0016] Fig. 3 It is internal structure schematic diagram of the utility model when the top pressure block is not ejected;

[0017] Fig. 4 It is internal structure schematic diagram of the utility model when the top pressure block is ejected. DETAILED DESCRIPTION

[0018] The technical scheme of the present application will be described below in connection with the drawings, obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the present application.

[0019] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] As Figs. 1 to 4 The utility model discloses a clamp bolt structure, including integrative setting screw rod 1 and screw cap 2, and the bottom of screw cap 2 is equipped with the protruding guide block 3, and screw rod 1 is below guide block 3, and the outer periphery of screw rod 1 is equipped with the thread, through the setting of guide block 3, when clamp bolt inserts into the clamping slot of clamp, guide block 3 can play the role of guiding, so as to facilitate the connection of clamp bolt and clamp.

[0021] In this embodiment, the top pressing block 4 is provided on the guide block 3 and can move radially, the top pressing block 4 is a plurality of and is evenly distributed in the circumference, and the screw cap 2 is connected with a driving assembly, wherein the top pressing block 4 is driven by the driving assembly and is ejected radially, and the ejection of the top pressing block 4 can apply a positive pressure to the guide block 3 to increase the friction force generated between the guide block 3 and the clamping slot of the clamp.

[0022] The specific structure of the driving assembly includes an adjusting rod 5, a sleeve 6 for connecting the adjusting rod 5 is fixed on the screw cap 2, that is, a thread is provided on the inner wall of the sleeve 6, and the adjusting rod 5 can be threadedly connected with the sleeve 6, so that the adjusting rod 5 is connected to the sleeve 6 in a threaded manner. In addition, a connecting groove 7 is provided on the screw cap 2 and communicates with the inside of the sleeve 6 and extends to the guide block 3, so that the adjusting rod 5 can move in the vertical direction in the connecting groove 7 under the thread cooperation of the sleeve 6 by rotating, and after contacting the top pressing block 4, the top pressing block 4 can be ejected outward.

[0023] Specifically, the connecting structure between the top pressing block 4 and the connecting groove 7 is that a through hole communicated with the connecting groove 7 is arranged on the guide block 3, a mounting sleeve 8 is fixed in the through hole by welding or interference fit, the mounting sleeve 8 is provided with a mounting groove 81, a spring 9 is arranged in the mounting groove 81, one end of the spring 9 is fixed to the groove bottom of the mounting groove 81, and the other end is fixed to the top pressing block 4, the mounting sleeve 8 is provided with a through clearance hole, and the top pressing block 4 extends to the connecting groove 7 through the clearance hole, that is, when the spring 9 is not compressed, one end of the top pressing block 4 is in the connecting groove 7 through the clearance hole, so that when the adjusting rod 5 moves downward, the adjusting rod 5 can push the top pressing block 4 out of the connecting groove 7 after contacting the top pressing block 4, so that the top pressing block 4 can press in the clamping groove, thereby increasing the normal pressure of the guide block 3 on the clamping groove, thereby increasing the corresponding friction, so that the bolt of the clamp needs to overcome greater friction when moving relatively, thereby preventing loosening during long-term use.

[0024] When the guide block 3 is inserted into the clamping groove of the clamp, the adjusting rod 5 can be moved upward, so that the adjusting rod 5 and the top pressing block 4 can be separated, so that the spring 9 stretched by the ejection of the top pressing block 4 before can drive the top pressing block 4 to reset, so that the normal pressure of the top pressing block 4 during the insertion of the guide block 3 can be avoided. The friction that the guide block 3 needs to overcome is large, thereby facilitating the insertion of the guide block 3.

[0025] In addition, the mounting sleeve 8 is used to connect the top pressing block 4 and the guide block 3 in the embodiment, so that the spring 9 and the top pressing block 4 can be assembled with the mounting sleeve 8, and then they are assembled into the through hole, so that they can be processed and assembled separately, thereby facilitating processing and manufacturing, and improving the processing and manufacturing efficiency.

[0026] In the embodiment, the coupling side wall 51 is arranged at the side end of the adjusting rod 5 facing the connecting groove 7, and the inner diameter of the coupling side wall 51 decreases in the direction away from the connecting groove 7, so that the contact between the end of the adjusting rod 5 and the top pressing block 4 is smoother during the downward movement of the adjusting rod 5.

[0027] In the embodiment, the rounded corner 31 is further arranged at the ridge line of the guide block 3, so that the guide block 3 can be inserted into the clamping groove of the clamp more smoothly.

[0028] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. Those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A clamp bolt structure characterized by comprising: The utility model relates to a screw rod and nut integrated device, the nut bottom is equipped with the protruding guide block, the screw rod periphery is equipped with the thread, the guide block is equipped with the radial movement top pressure block, the top pressure block is multiple and evenly distributes according to circumference, the nut is connected with drive assembly, and the drive assembly is used to drive top pressure block and project along the radial.

2. The clamp bolt structure according to claim 1, wherein The drive assembly includes an adjusting rod, a sleeve is fixed to the nut, the inner wall of the sleeve is provided with a thread, the adjusting rod can be threadedly connected with the sleeve, the nut is provided with a connecting groove extending to the guide block, and the adjusting rod can move in the vertical direction in the connecting groove by rotating.

3. The clamp bolt structure according to claim 2, wherein The guide block is provided with a through hole in communication with the connecting groove, a mounting sleeve is fixed in the through hole, an installation groove is formed in the mounting sleeve, a spring is arranged in the installation groove, one end of the spring is fixed to the bottom of the installation groove, and the other end of the spring is fixed to the top pressure block.

4. A clamp bolt structure according to claim 2 or 3, wherein The adjusting rod is provided with a coupling side wall at one end thereof facing the connecting groove, and the coupling side wall gradually decreases in diameter away from the connecting groove.

5. The clamp bolt structure of claim 1, wherein The guide block is rounded at the ridge line.

Images