Torsional shear type bolt
By designing the combined structure of the nut and the clamping ring and the setting of the elastic oil bag, the problem of nut wear and rust during long-term use of torsion-shear bolts is solved, and the rapid replacement and rust prevention of the nut is achieved, which improves the convenience of use and durability.
Patent Information
- Application Number
- CN202422072042.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-26
AI Technical Summary
The existing torsion shear bolts wear the nut during long-term use, which makes it difficult to disassemble, and the screws are prone to rust, affecting normal use.
A structure including nuts, clamping rings, connecting rods, sealing rings, threaded pipes, screw rods and elastic oil capsules is designed. The rapid replacement of nuts and automatic spraying of anti-rust oil are achieved through the rotating cover and pressing rods, which solve the disassembly and anti-rust problems respectively.
It realizes rapid replacement of nuts and anti-rust treatment of screws, ensuring normal disassembly of torsion-shear bolts and preventing rust, improving the convenience and durability of use.
Smart Images
Figure CN223152510U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a torque-shear type bolt, belonging to the technical field of bolts. Background Technique
[0002] A bolt is a mechanical part, consisting of two parts: a head and a screw rod (a cylinder with external threads). It is a cylindrical threaded fastener used with a nut. The bolt cooperates with the nut to be used for firmly connecting two parts with through holes. This connection form is called bolt connection. The nut can be screwed off the bolt, and the two parts can be separated. Therefore, bolt connection belongs to detachable connection, and the torque-shear type bolt is a kind of bolt.
[0003] During the use of an existing torque-shear type bolt, there are still some problems. The torque-shear type bolt is composed of a nut and a screw rod at its bottom. However, during long-term use, the nut at the top of the screw rod will be worn, resulting in the situation that the wrench slides when disassembling the bolt, and then the bolt cannot be normally disassembled. And when the screw rod is installed inside other devices for too long, it is easy to rust, which will not only cause wear to the bolt itself, but also make it inconvenient to disassemble. Content of the Utility Model
[0004] The purpose of the utility model is to provide a torque-shear type bolt. The structure of the utility model is simple and easy to use. It can replace the worn nut, thus facilitating the disassembly of the screw rod at its bottom. At the same time, it can lubricate the outside of the screw rod to prevent rusting caused by long-term installation, so as to solve the problems put forward in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical scheme:
[0006] A torque-shear type bolt includes a nut. A clamping ring is fixedly connected to the bottom of the nut. A connecting rod is installed inside the clamping ring. A screw rod is fixedly connected to the bottom of the connecting rod. A sealing ring is installed between the connecting rod and the clamping ring. A threaded pipe is fixedly connected to the outside of the clamping ring. A lead screw is threadedly connected inside the threaded pipe. A rotating cover is fixedly connected to the outside of the lead screw. A positioning hole is opened inside the connecting rod.
[0007] Further, an elastic oil bag is installed inside the nut. An adapter ring is fixedly connected to the top of the nut. A pressing rod is movably connected inside the adapter ring. A return spring is fixedly connected to the outside of the pressing rod. An extrusion rod is fixedly connected to the bottom of the pressing rod. A telescopic hose is fixedly connected to the outside of the elastic oil bag. An oil inlet groove is fixedly connected to the top of the telescopic hose. A cover plate is clamped inside the oil inlet groove. An oil outlet pipe is fixedly connected to the bottom of the elastic oil bag.
[0008] Further, the interior of the nut is hollow, the threaded tubes are symmetrically distributed outside the clamping ring, and the lead screw is rotationally connected inside the threaded tube through a rotating cover.
[0009] Further, the positioning holes are symmetrically distributed inside the connecting rod, and one end of the lead screw away from the rotating cover is located inside the positioning hole.
[0010] Further, the bottom of the return spring is fixedly connected to the top of the connecting ring, and the extrusion rod is movably connected inside the nut.
[0011] Further, the extrusion rod is located directly above the elastic oil bag, and the oil inlet groove is located in the inner top wall of the nut.
[0012] Further, the oil outlet pipes are symmetrically distributed at the bottom of the elastic oil bag, and the ends of the oil outlet pipes away from the elastic oil bag are symmetrically distributed outside the screw rod.
[0013] The beneficial effects of the present utility model are as follows:
[0014] (1) By providing the nut and the clamping ring, and installing the screw rod below the nut through the connecting rod inside the clamping ring. When the nut is worn after long-term use, first rotate the rotating cover, so that the rotating cover drives the lead screw to rotate inside the threaded tube. At this time, the lead screw will move inside the threaded tube, and one end of it will move out of the positioning hole inside the connecting rod. Then, the clamping ring and the nut on its top can be disassembled from the top of the connecting rod, and then a new nut can be replaced. Then, by rotating the lead screw and moving it into the positioning hole inside the connecting rod, the new nut clamping ring can be fixedly connected to the screw rod at the bottom of the connecting rod. At this time, the screw rod can be quickly disassembled by a wrench.
[0015] (2) By providing the nut, when it is necessary to add anti-rust oil to the outside of the screw rod, first drive the extrusion rod to move downward inside the nut by pressing the rod. At this time, the extrusion rod will squeeze the elastic oil bag inside the nut, so that the anti-rust oil inside the elastic oil bag flows out through the oil outlet pipes at its bottom. Since the oil outlet pipes are symmetrically distributed outside the screw rod, the sprayed anti-rust oil will flow to the outside of the screw rod, thereby preventing the screw rod from rusting. When it is necessary to replenish the anti-rust oil inside the elastic oil bag, open the cover plate, and then add anti-rust oil to the inside of the elastic oil bag through the cooperation of the oil inlet groove and the telescopic hose. Description of the Drawings
[0016] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the specific embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.
[0017] Figure 1 is the structural development view of a torque-shear type bolt of the present utility model;
[0018] Figure 2 is the schematic structural view of the outside of the nut of a torque-shear type bolt of the present utility model;
[0019] Figure 3 is the schematic structural view of the inside of the nut of a torque-shear type bolt of the present utility model;
[0020] Figure 4 is the schematic structural view of the outside of the screw rod of a torque-shear type bolt of the present utility model;
[0021] Reference numerals in the figure: 1, nut; 2, clamping ring; 3, connecting rod; 4, screw rod; 5, sealing ring; 6, threaded pipe; 7, lead screw; 8, rotating cover; 9, positioning hole; 10, elastic oil sac; 11, connecting ring; 12, pressing rod; 13, return spring; 14, extrusion rod; 15, telescopic hose; 16, oil inlet groove; 17, cover plate; 18, oil outlet pipe. Specific embodiments
[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0023] Example 1 Please refer to Figures 1-4 , the present utility model provides a technical solution:
[0024] A torque-shear type bolt includes a nut 1. A clamping ring 2 is fixedly connected to the bottom of the nut 1. A connecting rod 3 is installed inside the clamping ring 2. A screw rod 4 is fixedly connected to the bottom of the connecting rod 3. A sealing ring 5 is installed between the connecting rod 3 and the clamping ring 2. A threaded pipe 6 is fixedly connected to the outside of the clamping ring 2. A lead screw 7 is threadedly connected inside the threaded pipe 6. A rotating cover 8 is fixedly connected to the outside of the lead screw 7. A positioning hole 9 is opened inside the connecting rod 3.
[0025] Specifically, as Figure 1 shown, the inside of the nut 1 is in a hollow state. The threaded pipes 6 are symmetrically distributed on the outside of the clamping ring 2. The lead screw 7 is rotationally connected inside the threaded pipe 6 through the rotating cover 8. The positioning holes 9 are symmetrically distributed inside the connecting rod 3. One end of the lead screw 7 away from the rotating cover 8 is located inside the positioning hole 9.
[0026] In this embodiment: By setting the nut 1 and the clamping ring 2, and installing the connecting rod 3 inside the clamping ring 2, the screw rod 4 is installed below the nut 1. When the nut 1 wears out after long-term use, first rotate the rotating cover 8 to drive the lead screw 7 to rotate inside the threaded tube 6. At this time, the lead screw 7 will move inside the threaded tube 6. By the movement of the lead screw 7, one end of it moves out of the positioning hole 9 inside the connecting rod 3. At this time, the clamping ring 2 and the nut 1 on its top can be disassembled from the top of the connecting rod 3, and then a new nut 1 can be replaced. Then, by rotating and moving the lead screw 7 into the positioning hole 9 inside the connecting rod 3, the new nut 1, the clamping ring 2 and the screw rod 4 at the bottom of the connecting rod 3 are fixedly connected. At this time, the screw rod 4 can be quickly disassembled by a wrench.
[0027] Example 2 Please refer to Figure 1 、 Figure 2 and Figure 4 , the difference between this embodiment and Embodiment 1 is that: an elastic oil bag 10 is installed inside the nut 1, a connecting ring 11 is fixedly connected to the top of the nut 1, a pressing rod 12 is movably connected inside the connecting ring 11, a return spring 13 is fixedly connected to the outside of the pressing rod 12, a pressing rod 14 is fixedly connected to the bottom of the pressing rod 12, a telescopic hose 15 is fixedly connected to the outside of the elastic oil bag 10, an oil inlet groove 16 is fixedly connected to the top of the telescopic hose 15, a cover plate 17 is clamped inside the oil inlet groove 16, and an oil outlet pipe 18 is fixedly connected to the bottom of the elastic oil bag 10.
[0028] Specifically, as Figures 1-4 shown, the bottom of the return spring 13 is fixedly connected to the top of the connecting ring 11, the pressing rod 14 is movably connected inside the nut 1, the pressing rod 14 is located directly above the elastic oil bag 10, the oil inlet groove 16 is located in the inner top wall of the nut 1, the oil outlet pipes 18 are symmetrically distributed at the bottom of the elastic oil bag 10, and the ends of the oil outlet pipes 18 away from the elastic oil bag 10 are symmetrically distributed outside the screw rod 4.
[0029] In this embodiment: By setting the nut 1, when it is necessary to add antirust oil to the outside of the screw rod 4, first drive the pressing rod 14 to move downward inside the nut 1 through the pressing rod 12. At this time, the pressing rod 14 will squeeze the elastic oil bag 10 inside the nut 1, so that the antirust oil inside the elastic oil bag 10 flows out through the oil outlet pipe 18 at its bottom. Since the oil outlet pipes 18 are symmetrically distributed outside the screw rod 4, the sprayed antirust oil will flow to the outside of the screw rod 4, thereby preventing the screw rod 4 from rusting. When it is necessary to replenish the antirust oil inside the elastic oil bag 10, by opening the cover plate 17, the elastic oil bag 10 is filled with antirust oil through the cooperation of the oil inlet groove 16 and the telescopic hose 15.
[0030] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A torque-shear type bolt, comprising a nut (1), characterized in that: A clamping ring (2) is fixedly connected to the bottom of the nut (1). A connecting rod (3) is installed inside the clamping ring (2). A screw rod (4) is fixedly connected to the bottom of the connecting rod (3). A sealing ring (5) is installed between the connecting rod (3) and the clamping ring (2). A threaded pipe (6) is fixedly connected to the outside of the clamping ring (2). A lead screw (7) is threadedly connected inside the threaded pipe (6). A rotating cover (8) is fixedly connected to the outside of the lead screw (7). A positioning hole (9) is formed inside the connecting rod (3).
2. The torque-shear type bolt according to claim 1, wherein: An elastic oil bag (10) is installed inside the nut (1). An adapter ring (11) is fixedly connected to the top of the nut (1). A pressing rod (12) is movably connected inside the adapter ring (11). A return spring (13) is fixedly connected to the outside of the pressing rod (12). An extrusion rod (14) is fixedly connected to the bottom of the pressing rod (12). A telescopic hose (15) is fixedly connected to the outside of the elastic oil bag (10). An oil inlet groove (16) is fixedly connected to the top of the telescopic hose (15). A cover plate (17) is clamped inside the oil inlet groove (16). An oil outlet pipe (18) is fixedly connected to the bottom of the elastic oil bag (10).
3. A torque-shear type bolt according to claim 1, characterized in that: The inside of the nut (1) is in a hollow state. The threaded pipes (6) are symmetrically distributed on the outside of the clamping ring (2). The lead screw (7) is rotatably connected inside the threaded pipe (6) through the rotating cover (8).
4. A torque-shear type bolt according to claim 1, characterized in that: The positioning holes (9) are symmetrically distributed inside the connecting rod (3). One end of the lead screw (7) away from the rotating cover (8) is located inside the positioning hole (9).
5. A torque-shear type bolt according to claim 2, characterized in that: The bottom of the return spring (13) is fixedly connected to the top of the adapter ring (11). The extrusion rod (14) is movably connected inside the nut (1).
6. A torque-shear type bolt according to claim 2, characterized in that: The extrusion rod (14) is located directly above the elastic oil bag (10). The oil inlet groove (16) is located in the inner top wall of the nut (1).
7. A torque-shear type bolt according to claim 2, characterized in that: The oil outlet pipes (18) are symmetrically distributed at the bottom of the elastic oil bag (10), and the ends of the oil outlet pipes (18) away from the elastic oil bag (10) are symmetrically distributed on the outside of the screw rod (4).