Finish-rolled nut fastener

Abstract

The utility model discloses a finish rolling nut fastener which comprises a threaded pipe and further comprises a fixing pipe arranged on the side wall of the threaded pipe, the fixing pipe is provided with a rotating assembly used for rotating the threaded pipe, and the rotating assembly comprises a fixing cavity formed in the fixing pipe. A plurality of through holes arranged in an annular array are formed in the inner wall of the side, away from the threaded pipe, of the fixing cavity, rotating plates are slidably connected to the through holes, and the fixing cavity is provided with a limiting assembly used for limiting the rotating plates. According to the wrench, through the arrangement of the rotating assembly, the nut is fastened and loosened, meanwhile, the worn rotating part is replaced through the arrangement of the limiting assembly under the matching action of the driving assembly, the extruding assembly and the pushing assembly, and therefore the nut fastening part can be conveniently replaced while the rotating effect of the wrench on the nut fastening part is kept; and the scrap probability of the nut is reduced, so that the use long-term effect of a nut fastener is improved.

Description

Technical Field

[0001] This utility model relates to the field of nut fastener technology, specifically a precision-rolled nut fastener. Background Technology

[0002] Precision rolled nuts and fasteners, as the name suggests, are nuts and fasteners that have been processed by precision rolling. Precision rolling is a metal processing technology that uses multiple rolling passes to gradually refine the grains of metal materials during plastic deformation, thereby improving the mechanical properties and surface quality of the materials.

[0003] When using nuts and fasteners, the main method is to tighten or loosen the nuts by rotating the groove on the side wall of the nut using a wrench. However, when the contact stress between the wrench and the groove exceeds the yield strength of the nut material, the edges of the groove will undergo plastic deformation during long-term tightening, resulting in rounded corners. This increases the gap between the wrench and the groove, causing the wrench to slip and making it difficult to tighten or loosen the nut. Ultimately, this leads to the nut becoming unusable and reduces the long-term service life of the nut and fastener.

[0004] Therefore, there is an urgent need for a precision-rolled nut fastener to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention provides the following technical solution: a precision rolled nut fastener, comprising a threaded tube and a fixing tube disposed on the side wall of the threaded tube, wherein the fixing tube is provided with a rotating assembly for rotating the threaded tube;

[0006] The rotating assembly includes a fixed cavity formed in the fixed tube. The inner wall of the fixed cavity away from the threaded tube has a plurality of through holes arranged in a ring array. Each of the through holes is slidably connected to a rotating plate. The fixed cavity is provided with a limiting assembly for limiting the position of each rotating plate.

[0007] The limiting assembly includes an L-shaped connecting plate fixedly connected to the inner wall of the fixed cavity near the threaded tube. The L-shaped connecting plate is hollow and has two sets of locking components. The two sets of locking components include two symmetrically arranged fixing holes on one end of the L-shaped connecting plate near the rotating plate. Limiting blocks are slidably connected to the two fixing holes. Two mounting holes are opened on the side of the rotating plate near the L-shaped connecting plate. Limiting holes are opened on the two inner walls opposite to the two mounting holes. The two opposite limiting holes are matched with the limiting blocks. The L-shaped connecting plate is provided with a driving assembly for driving the two sets of limiting blocks.

[0008] The limiting block has an inclined surface on the side near the rotating plate.

[0009] The driving assembly comprises a driving plate slidably connected to the L-shaped connecting plate, two connecting plates hingedly connected to the driving plate on the side close to the two limiting blocks, and two limiting blocks hingedly connected to the two ends of the two connecting plates away from the driving plate.

[0010] The extrusion assembly comprises two fixed rods fixedly connected between the two inner walls of the L-shaped connecting plate, two L-shaped supporting plates slidably connected to the two fixed rods, two ends of the two L-shaped supporting plates connected to the two driving plates, two springs sleeved on the side walls of the two fixed rods, and two ends of the two springs connected to the inner walls of the L-shaped connecting plate and the L-shaped supporting plates.

[0011] The pushing assembly comprises a pushing rod slidably connected to the side of the L-shaped connecting plate close to the rotating plate, one end of the pushing rod connected to the L-shaped supporting plate, the other end of the pushing rod provided with a pushing hole, the rotating plate provided with an avoiding hole coaxially arranged with the pushing rod.

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

[0013] The utility model discloses a nut fastener rotating device, which comprises a fixed pipe, a rotating plate rotatably connected to the fixed pipe, a limiting assembly arranged on the fixed pipe and connected to the rotating plate, a driving assembly arranged on the fixed pipe and connected to the limiting assembly, an extrusion assembly arranged on the fixed pipe and connected to the driving assembly, and a pushing assembly arranged on the fixed pipe and connected to the extrusion assembly. BRIEF DESCRIPTION OF DRAWINGS

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

[0015] Figure 2 It is the thread pipe and fixed pipe structure schematic diagram of the utility model;

[0016] Figure 3 It is the rotating assembly internal structure schematic diagram of the utility model;

[0017] Figure 4 It is the limiting assembly structure schematic diagram of the utility model;

[0018] Figure 5 It is the driving assembly internal structure schematic diagram of the utility model;

[0019] Figure 6 It is the extrusion assembly internal structure schematic diagram of the utility model.

[0020] In the diagram: 1. Threaded pipe; 2. Fixed pipe; 301. Fixed cavity; 302. Rotating plate; 401. L-shaped connecting plate; 402. Fixed hole; 403. Limiting block; 404. Inclined surface; 405. Mounting hole; 406. Limiting hole; 501. Drive plate; 502. Connecting plate; 601. Fixed rod; 602. L-shaped support plate; 603. Spring; 701. Push rod; 702. Clearance hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figures 1-6 The figure shows a precision rolled nut fastener, which includes a threaded tube 1 and a fixed tube 2 disposed on the side wall of the threaded tube 1. The fixed tube 2 is provided with a rotating component for rotating the threaded tube 1.

[0024] The rotating assembly includes a fixed cavity 301 opened in the fixed tube 2. The inner wall of the fixed cavity 301 away from the threaded tube 1 has a plurality of through holes arranged in a ring array. Each through hole is slidably connected to a rotating plate 302. The fixed cavity 301 is provided with a limiting assembly for limiting each rotating plate 302.

[0025] It should be noted that by setting up the rotating component, while achieving the tightening and loosening of the nut, the setting of the limiting component, in conjunction with the driving component, the pressing component, and the pushing component, enables the replacement of worn rotating parts. Thus, while maintaining the wrench's ability to rotate the nut fastener, the probability of the nut being scrapped is reduced, thereby improving the longevity of the nut fastener.

[0026] It should be emphasized that the threaded tube 1 and the fixed tube 2 are detachable, so that the fixed tube 2 can be reused when the threaded tube 1 is completely scrapped.

[0027] Please see Figures 3-6The limiting component shown in the figure includes an L-shaped connecting plate 401 fixedly connected to the inner wall of the fixed cavity 301 near the threaded tube 1. The L-shaped connecting plate 401 is hollow and has two sets of locking components. The two sets of locking components include two symmetrically arranged fixing holes 402 opened at one end of the L-shaped connecting plate 401 near the rotating plate 302. The two fixing holes 402 are slidably connected to the limiting blocks 403. The rotating plate 302 has two mounting holes 405 on one side near the L-shaped connecting plate 401. The two inner walls of the two mounting holes 405 have limiting holes 406. The two limiting holes 406 are matched with the limiting blocks 403. The L-shaped connecting plate 401 is provided with a driving component for driving the two sets of limiting blocks 403. The limiting block 403 has an inclined surface 404 on one side near the rotating plate 302.

[0028] It should be noted here that the setting of the limit component facilitates the installation and replacement of the rotating plate 302.

[0029] Please see Figure 5 and Figure 6 The driving assembly shown in the figure includes a driving plate 501 that is slidably connected to an L-shaped connecting plate 401. Two connecting plates 502 are hinged to the side of the driving plate 501 near the two opposing limiting blocks 403. The ends of the two connecting plates 502 away from the driving plate 501 are respectively hinged to the two limiting blocks 403. The L-shaped connecting plate 401 is provided with a pressing assembly for pressing the driving plate 501.

[0030] It should be noted here that the configuration of the drive components facilitates the movement of the two opposing limit blocks 403 toward or away from each other.

[0031] Please see Figure 5 and Figure 6 The extrusion assembly shown in the figure includes a fixed rod 601 fixedly connected between two inner walls of an L-shaped connecting plate 401. An L-shaped support plate 602 is slidably connected to the two fixed rods 601. The two ends of the L-shaped support plate 602 are respectively connected to two drive plates 501. Springs 603 are sleeved on the side walls of the two fixed rods 601. The two ends of the two springs 603 are respectively connected to the inner wall of the L-shaped connecting plate 401 and the L-shaped support plate 602. The L-shaped connecting plate 401 is provided with a pushing assembly for pushing the L-shaped support plate 602.

[0032] It should be noted here that the extrusion assembly provides elastic pushing force to the drive board 501.

[0033] Working principle: When using this nut fastener, the threaded tube 1 is first fitted onto the side wall of the threaded rod, and the rotation of the rotating plate 302 on the side wall of the fixed tube 2 is achieved by using a wrench, thereby rotating the threaded tube 1. Then, under the action of thread meshing transmission, the threaded tube 1 moves on the side wall of the threaded rod, thereby realizing the tightening and loosening operation of the nut fastener.

[0034] After repeated use, one or more of the rotating plates 302 will develop rounded edges, which will increase the gap between the wrench and the rotating plate 302, causing the wrench to slip. At this time, the rotating plate 302 needs to be replaced. In the process of replacing the rotating plate 302, the pushing component is first used to make the L-shaped support plate 602 slide in the L-shaped connecting plate 401, which will drive the driving plates 501 at both ends to move synchronously. During the movement of the driving plate 501, the rotation of the two connecting plates 502 will drive the two opposing limit blocks 403 to move closer to each other, which will cause the two opposing limit blocks 403 to move out of the limit hole 406 on the rotating plate 302, thereby releasing the limit on the rotating plate 302. At this time, the rotating plate 302 can be removed from the L-shaped connecting plate 401.

[0035] After removing the worn rotating plate 302, a new rotating plate 302 can be installed. During the installation process, align the mounting hole 405 on one side of the rotating plate 302 with one end of the L-shaped connecting plate 401, and then push the rotating plate 302 closer to the L-shaped connecting plate 401. As the rotating plate 302 moves closer to the L-shaped connecting plate 401, the two opposing limiting blocks 403 on one side of the L-shaped connecting plate 401 will be inserted into the mounting hole 405. When the sidewalls of the two opposing limiting blocks 403 abut against the sidewalls of the mounting hole 405, under the interaction force of the inclined plane 404 and the guiding action of the fixing hole 402, the two opposing limiting blocks 403 will be pushed... The limiting blocks 403 move closer to each other. As the rotating plate 302 is continuously pushed, when the two opposing limiting blocks 403 engage with the limiting hole 406, under the elastic action of the pressing component and driven by the driving component, the two opposing limiting blocks 403 are inserted into the limiting hole 406 and abut against the bottom wall of the limiting hole 406. Thus, under the abutting action of the limiting blocks 403, the installation of the rotating plate 302 is limited. By replacing the rotating plate 302, the rotation effect of the wrench on the threaded tube 1 is maintained. This reduces the probability of nut scrapping while realizing the tightening and loosening operation of the nut, thereby improving the service life of the nut fastener.

[0036] Example 2

[0037] Please see Figure 2 and Figure 6This embodiment further illustrates Example 1. The pushing assembly shown in the figure includes a pushing rod 701 that is slidably connected to the L-shaped connecting plate 401 on the side near the rotating plate 302. One end of the pushing rod 701 is connected to the L-shaped support plate 602, and the other end of the pushing rod 701 is provided with a pushing hole. The rotating plate 302 is provided with a clearance hole 702, and the clearance hole 702 is coaxially arranged with the pushing rod 701.

[0038] It should be noted here that: by setting up the push assembly, when disassembling the rotating plate 302, one end of the Allen wrench can be passed through the clearance hole 702 of the rotating plate 302 and inserted into the push hole of the push rod 701. Then, by pushing the Allen wrench, the L-shaped support plate 602 can be pushed.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A precision-rolled nut fastener, comprising: Threaded pipe (1); Its characteristic is that it further includes: A fixed tube (2) is provided on the side wall of the threaded tube (1), and the fixed tube (2) is provided with a rotating assembly for rotating the threaded tube (1); The rotating assembly includes a fixed cavity (301) opened in the fixed tube (2). The inner wall of the fixed cavity (301) away from the threaded tube (1) has a plurality of through holes arranged in a ring array. Each of the through holes is slidably connected to a rotating plate (302). The fixed cavity (301) is provided with a limiting assembly for limiting each rotating plate (302).

2. The precision-rolled nut fastener according to claim 1, characterized in that: The limiting component includes an L-shaped connecting plate (401) fixedly connected to the inner wall of the fixed cavity (301) near the threaded tube (1). The L-shaped connecting plate (401) is hollow and has two sets of locking components. The two sets of locking components include two symmetrically arranged fixing holes (402) on one end of the L-shaped connecting plate (401) near the rotating plate (302). The two fixing holes (402) are slidably connected to limiting blocks (403). The rotating plate (302) has two mounting holes (405) on one side near the L-shaped connecting plate (401). The two inner walls of the two mounting holes (405) opposite to each other have limiting holes (406). The two opposing limiting holes (406) are matched with the limiting blocks (403). The L-shaped connecting plate (401) is provided with a driving component for driving the two sets of limiting blocks (403).

3. A precision-rolled nut fastener according to claim 2, characterized in that: The limiting block (403) has an inclined surface (404) on the side near the rotating plate (302).

4. A precision-rolled nut fastener according to claim 3, characterized in that: The driving assembly includes a driving plate (501) slidably connected to an L-shaped connecting plate (401). Two connecting plates (502) are hinged to the side of the driving plate (501) near the two opposing limiting blocks (403). The ends of the two connecting plates (502) away from the driving plate (501) are respectively hinged to the two limiting blocks (403). The L-shaped connecting plate (401) is provided with a pressing assembly for pressing the driving plate (501).

5. A precision-rolled nut fastener according to claim 4, characterized in that: The extrusion assembly includes fixed rods (601) fixedly connected between two inner walls of an L-shaped connecting plate (401). Two fixed rods (601) are slidably connected to an L-shaped support plate (602). The two ends of the L-shaped support plate (602) are respectively connected to two drive plates (501). Springs (603) are sleeved on the side walls of the two fixed rods (601). The two ends of the two springs (603) are respectively connected to the inner wall of the L-shaped connecting plate (401) and the L-shaped support plate (602). The L-shaped connecting plate (401) is provided with a pushing assembly for pushing the L-shaped support plate (602).

6. A precision-rolled nut fastener according to claim 5, characterized in that: The pushing assembly includes a pushing rod (701) slidably connected to the side of the L-shaped connecting plate (401) near the rotating plate (302). One end of the pushing rod (701) is connected to the L-shaped support plate (602), and the other end of the pushing rod (701) is provided with a pushing hole. The rotating plate (302) is provided with a clearance hole (702), and the clearance hole (702) is coaxially arranged with the pushing rod (701).

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