Reinforced bolt fastener

Abstract

The utility model relates to the technical field of bolt fasteners, in particular to a reinforced bolt fastener which comprises a screw rod, a nut and a reinforcing assembly, the nut is fixedly connected with the upper surface of the screw rod, the surface of the screw rod is in threaded connection with the nut, and the reinforcing assembly is arranged in the center of the screw rod. The reinforcing assembly comprises a supporting unit, the supporting unit comprises a force bearing block, a mounting cavity is formed in the cambered surface of the screw rod, the force bearing block is fixedly connected with the inner wall of the mounting cavity, a circular groove is formed in the position, located on the inner wall of the mounting cavity, of the screw rod, and a rotating shaft is rotationally connected to the position, located on the inner wall of the circular groove, of the screw rod. According to the bolt fastener, the reinforcing assembly is arranged, so that the load borne by the bolt fastener is transferred to the screw rod, the problem that the strength of the fastener is easily reduced due to the fact that the load is applied to a threaded structure when the fastener is used is solved, and the stability and the bearing load of the fastener are further improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt fastener technology, and in particular to a reinforced bolt fastener. Background Technology

[0002] Bolts are important connecting components widely used in many fields such as machinery manufacturing and construction engineering. They typically consist of a head and a threaded rod, and are made of various materials, including carbon steel, alloy steel, and stainless steel. By mating with a nut and utilizing the screw thread, bolts can securely connect different components together. They have advantages such as simple structure, convenient installation, and reliable connection. In practical applications, bolts come in various specifications and models, such as hexagonal bolts, double-ended bolts, and anchor bolts, depending on the usage scenario and requirements. At the same time, to ensure the stability and safety of the connection, bolts must meet certain performance requirements such as strength and hardness.

[0003] Existing technologies, such as the utility model with publication number CN215596139U, disclose a reinforced bolt fastener. This patent uses a screw and a nut, with the inner wall of the nut screwed into the outer wall of the screw via a threaded groove. A turntable is fixedly connected to the top of the screw, and a through hole is formed on the outer wall of the screw. A connecting rod passes through the inside of the nut. In this utility model, a fixing mechanism is provided between the screw and the nut. In use, the bolt is fixed to the required equipment or object, the nut is screwed on, and the stop rod is pulled down. The stop rod no longer obstructs the through block, allowing the bolt to pass through. When the bolt block is inserted into the through hole, there will be no movement between the screw and the nut. To remove it, stretch the connecting rod, which will cause the through block to retract until it disengages from the through hole. Insert the stop rod to limit the movement of the through block, and then unscrew the nut from the screw. The operation is simple and convenient, effectively preventing the bolt from loosening. This improves the performance of existing bolt fasteners and solves the problem that existing fasteners still have shortcomings, such as the frequent loosening of bolts and nuts during use, which causes safety hazards and reduces the performance of existing bolt fasteners.

[0004] In the process of locking workpieces with bolt fasteners, most bolt fasteners on the market rely on the threads between the bolt and nut to bear the load when locking the workpiece. When the bolt is used to fix a heavy object, the weight of the object itself will be applied to the threads of the fastener. As the threads are under high load for a long time, the thread structure will deform, which will lead to damage to the thread structure and affect the structural strength of the fastener. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies where threads are subjected to long-term high loads, causing deformation of the thread structure, which in turn leads to damage to the thread structure and affects the structural strength of the fastener. Therefore, this invention proposes a reinforced bolt fastener.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a reinforced bolt fastener, comprising a screw, a nut, and a reinforcing component, wherein the nut is fixedly connected to the upper surface of the screw, the surface of the screw is threaded with a nut, and the reinforcing component is disposed at the center of the screw;

[0007] The reinforcement assembly includes a support unit, which includes a load-bearing block. The screw has an arc-shaped mounting cavity. The load-bearing block is fixedly connected to the inner wall of the mounting cavity. The screw has a circular groove on the inner wall of the mounting cavity. The screw is rotatably connected to a rotating shaft on the inner wall of the circular groove. A connector is fixedly connected to the surface of the rotating shaft. A support plate is fixedly connected to the surface of the connector. A positioning groove is formed on the side surface of the connector. A torsion spring is installed on the inner wall of the positioning groove of the connector. A slot is formed on the inner wall of the mounting cavity of the screw. The side of the torsion spring away from the connector is inserted into the slot.

[0008] The reinforcement assembly further includes a connecting unit, which comprises two positioning frames arranged symmetrically vertically. The positioning frames are inserted into the inner wall of the mounting cavity and contact the upper surface of the support plate. A connecting frame is inserted into the inner wall of the mounting cavity along the screw, and the connecting frame contacts the surface of the positioning frame. A first pin is fixedly connected to the surface of the connecting frame and is inserted into the inner wall of the positioning frame. A bearing plate is inserted into the inner wall of the mounting cavity along the screw, and the bearing plate contacts the surface of the positioning frame. A second pin is fixedly connected to the lower surface of the bearing plate and is inserted into the inner wall of the positioning frame. A rubber pad is fixedly connected to the upper surface of the bearing plate and contacts the lower surface of the nut.

[0009] Preferably, there are two load-bearing blocks, which are arranged symmetrically about the screw. The surface of each load-bearing block is arc-shaped. The load-bearing blocks can support the position of the support plate, thereby transferring the force on the support plate to the screw.

[0010] Preferably, the connector is arc-shaped and contacts the inner wall of the mounting cavity. The support plate contacts the upper surface of the load-bearing block. The connector can connect the rotating shaft and the support plate, so that the rotation axis of the support plate can be limited by the rotating shaft.

[0011] Preferably, there are two torsion springs, which are arranged symmetrically about the connector. The torsion springs are sleeved on the surface of the rotating shaft. The position of the connector can be constrained by the torsion springs, and at the same time, it can be ensured that the support plate can be reset under the action of the torsion springs after the connector rotates.

[0012] Preferably, the positioning bracket extends through the arc surface of the screw, and the connecting bracket is of equal length to the positioning bracket. By installing the positioning bracket into the mounting cavity, the thickness above the support plate can be increased, thereby allowing the load on the nut to be applied to the support plate.

[0013] Preferably, there are two pins, and the two pins are arranged symmetrically in the upper and lower positions. The pins can restrict the position of the connecting frame on the positioning frame, thereby ensuring the stability of the connecting frame in use.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] In this invention, by setting up a reinforcing component, when using fasteners to lock the corresponding workpiece, the screw is inserted into the pre-drilled slot in the workpiece. When the screw passes through the pre-drilled slot, the nut abuts against the surface of the workpiece. Then, the nut is put on the screw and rotated. During the rotation, the nut gradually tightens and contacts the support plate. The support plate gradually closes under the action of the nut. At the same time, the support plate pushes the connector. The connector rotates the torsion spring under the guidance of the rotating shaft. The torsion spring deforms during the rotation. When the nut passes under the support plate, the support plate loses the thrust applied by the nut. At the same time, the connector loses the force applied to the torsion spring. The torsion spring rebounds after losing its force and, during the rebound, cooperates with the connector to push the support plate. The support plate is pushed back to its original position and abuts against the surface of the load block again. When the support plate returns to its original position, the nut is selectively inserted into the mounting cavity according to its position. When installing the positioning frame, connecting frame, or support plate and rubber plate, insert the positioning frame into the installation cavity, then remove the connecting frame and align the pin on the connecting frame with the positioning frame. Push the connecting frame, and the connecting frame will push the pin, inserting the pin into the positioning frame. Once the pin is fully inserted into the positioning frame, the installation of the connecting frame is complete. Then, install the second layer of positioning frame, support plate and rubber pad according to the above steps. After installation, the rubber pad will rest under the nut and, together with the support plate, connecting frame, positioning frame, support plate and load-bearing block, support the nut. By setting up the reinforcement components, the load on the bolt fastener is transferred to the thread, thereby reducing the problem of the load being applied to the thread structure during use, which can easily lead to a decrease in the strength of the fastener, and further improving the stability and structural strength of the fastener. Attached Figure Description

[0016] Figure 1A three-dimensional structural diagram of a reinforced bolt fastener is provided for this utility model;

[0017] Figure 2 A bottom view of the structure of a reinforced bolt fastener is provided for this utility model;

[0018] Figure 3 A partial structural diagram of a reinforced bolt fastener is provided for this utility model;

[0019] Figure 4 This utility model provides a partial structural schematic diagram of a reinforced bolt fastener;

[0020] Figure 5 This utility model provides a schematic diagram of a reinforcement component structure for a reinforced bolt fastener;

[0021] Figure 6 This utility model provides a bottom view of the reinforcing component of a reinforced bolt fastener;

[0022] Figure 7 This utility model proposes a reinforced bolt fastener. Figure 6 Schematic diagram of the structure at point A in the middle.

[0023] Legend:

[0024] 1. Screw; 2. Nut; 3. Nut; 4. Reinforcing component; 41. Support unit; 411. Mounting cavity; 412. Load-bearing block; 413. Circular groove; 414. Rotating shaft; 415. Connector; 416. Support plate; 417. Torsion spring; 418. Slot; 42. Connecting unit; 421. Positioning frame; 422. Connecting frame; 423. Pin one; 424. Bearing plate; 425. Pin two; 426. Rubber pad. Detailed Implementation

[0025] Please see Figures 1-7 This utility model provides a technical solution: a reinforced bolt fastener, including a screw 1, a nut 2 and a reinforcing component 4. The nut 2 is fixedly connected to the upper surface of the screw 1, and a nut 3 is threadedly connected to the surface of the screw 1. The reinforcing component 4 is located at the center of the screw 1.

[0026] In this embodiment: the reinforcement component 4 includes a support unit 41, the support unit 41 includes a load-bearing block 412, the screw 1 has an installation cavity 411 on its arc surface, the load-bearing block 412 is fixedly connected to the inner wall of the installation cavity 411, the screw 1 has a circular groove 413 on the inner wall of the installation cavity 411, the screw 1 has a rotating shaft 414 rotatably connected to the inner wall of the circular groove 413, the surface of the rotating shaft 414 is fixedly connected to a connector 415, the surface of the connector 415 is fixedly connected to a support plate 416, the side surface of the connector 415 has a positioning groove, the inner wall of the connector 415 has a torsion spring 417 installed, the inner wall of the screw 1 has a slot 418 on the inner wall of the installation cavity 411, and the side of the torsion spring 417 away from the connector 415 is inserted into the slot 418.

[0027] The reinforcement component 4 also includes a connecting unit 42, which includes two positioning frames 421 arranged symmetrically in the upper and lower positions. The positioning frames 421 are inserted into the inner wall of the mounting cavity 411 and are in contact with the upper surface of the support plate 416. A connecting frame 422 is inserted into the inner wall of the mounting cavity 411 of the screw 1. The connecting frame 422 is in contact with the surface of the positioning frame 421. A first pin 423 is fixedly connected to the surface of the connecting frame 422 and is inserted into the inner wall of the positioning frame 421. A bearing plate 424 is inserted into the inner wall of the mounting cavity 411 of the screw 1 and is in contact with the surface of the positioning frame 421. A second pin 425 is fixedly connected to the lower surface of the bearing plate 424 and is inserted into the inner wall of the positioning frame 421. A rubber pad 426 is fixedly connected to the upper surface of the bearing plate 424 and is in contact with the lower surface of the nut 3.

[0028] Specifically, there are two load-bearing blocks 412, which are arranged symmetrically about the screw 1. The surface of the load-bearing blocks 412 is arc-shaped. The load-bearing blocks 412 can support the position of the support plate 416, so that the force on the support plate 416 can be transferred to the screw 1.

[0029] Specifically, connector 415 is arc-shaped and contacts the inner wall of mounting cavity 411, while support plate 416 contacts the upper surface of load block 412.

[0030] In this embodiment: the rotating shaft 414 and the support plate 416 can be connected by the connector 415, so that the rotation axis 414 of the support plate 416 can be defined by the rotating shaft 414.

[0031] Specifically, there are two torsion springs 417, which are arranged symmetrically about the connector 415. The torsion springs 417 are sleeved on the surface of the rotating shaft 414. The position of the connector 415 can be constrained by the torsion springs 417, and at the same time, it can be ensured that after the connector 415 rotates, the support plate 416 can be reset under the action of the torsion springs 417.

[0032] In this embodiment: the positioning frame 421 passes through the arc surface of the screw 1, and the connecting frame 422 has the same length as the positioning frame 421.

[0033] In this embodiment: by installing the positioning bracket 421 into the mounting cavity 411, the thickness above the support plate 416 can be increased, so that the load on the nut 3 can be applied to the support plate 416.

[0034] Specifically, there are two pins 423, and the two pins 423 are arranged symmetrically on the top and bottom of the connecting frame 422. The pins 423 can restrict the position of the connecting frame 422 on the positioning frame 421, thereby ensuring the stability of the connecting frame 422 in use.

[0035] Working principle: When using fasteners to lock the corresponding workpiece, the screw 1 is inserted into the pre-drilled slot in the workpiece. When the screw 1 passes through the pre-drilled slot, the nut 2 abuts against the surface of the workpiece. Then, the nut 3 is put on the screw 1 and rotated. The nut 3 gradually tightens during rotation and comes into contact with the support plate 416. The support plate 416 gradually closes under the action of the nut 3. At the same time as the support plate 416 closes, it pushes the connector 415. The connector 415 rotates the torsion spring 417 under the guidance of the rotating shaft 414. During the rotation of the torsion spring 417... When deformation occurs, as the nut 3 passes under the support plate 416, the support plate 416 loses the thrust applied by the nut 3. At the same time, the connector 415 loses the force applied to the torsion spring 417. The torsion spring 417, having lost its force, rebounds and, during this rebound, cooperates with the connector 415 to push the support plate 416. The support plate 416 is pushed back to its original position and rests against the surface of the load block 412. Once the support plate 416 has returned to its original position, depending on the position of the nut 3, the positioning bracket 421, the connecting bracket 422, or the bearing plate can be selectively inserted into the mounting cavity 411. When installing the positioning frame 421, connecting frame 422, bearing plate 424, and rubber sheet, insert the positioning frame 421 into the mounting cavity 411, then remove the connecting frame 422 and align the pin 423 on the connecting frame 422 with the positioning frame 421. Push the connecting frame 422, which will push the pin 423, causing it to insert into the positioning frame 421. Once the pin 423 is fully inserted into the positioning frame 421, the installation of the connecting frame 422 is complete. Then, install the second layer of positioning frame according to the above steps. 421, bearing plate 424 and rubber pad 426 are sufficient. After installation, the rubber pad 426 rests under the nut 3 and, together with the bearing plate 424, connecting bracket 422, positioning bracket 421, support plate 416 and load block 412, supports the nut 3. By setting the reinforcement component 4, the load on the bolt fastener is transferred to the screw 1, thereby reducing the problem that the load on the thread structure is easily applied to the fastener during use, which can easily lead to a decrease in the strength of the fastener, and further improving the stability and structural strength of the fastener.

Claims

1. A reinforced bolt fastener, comprising a bolt (1), a nut (2), and a reinforcing component (4), characterized in that: The nut (2) is fixedly connected to the upper surface of the screw (1), and the surface of the screw (1) is threaded with a nut (3). The reinforcing component (4) is located at the center of the screw (1). The reinforcement component (4) includes a support unit (41), the support unit (41) includes a load-bearing block (412), the screw (1) has an arc surface with a mounting cavity (411), the load-bearing block (412) is fixedly connected to the inner wall of the mounting cavity (411), the screw (1) has a circular groove (413) on the inner wall of the mounting cavity (411), and the screw (1) is rotatably connected to a rotating shaft (414) on the inner wall of the circular groove (413). 4) has a connector (415) fixedly connected to its surface. A support plate (416) is fixedly connected to the surface of the connector (415). A positioning groove is provided on the side surface of the connector (415). A torsion spring (417) is installed on the inner wall of the positioning groove of the connector (415). A slot (418) is provided on the inner wall of the mounting cavity (411) of the screw (1). The side of the torsion spring (417) away from the connector (415) is inserted into the slot (418). The reinforcement component (4) further includes a connecting unit (42), which includes two positioning frames (421) arranged symmetrically in the upper and lower positions. The positioning frames (421) are inserted into the inner wall of the mounting cavity (411) and the positioning frames (421) are in contact with the upper surface of the support plate (416). The screw (1) is located on the inner wall of the mounting cavity (411) and a connecting frame (422) is inserted therein. The connecting frame (422) is in contact with the surface of the positioning frame (421), and a pin (423) is fixedly connected to the surface of the connecting frame (422). The first pin (423) is inserted into the inner wall of the positioning frame (421). The screw (1) is located in the inner wall of the mounting cavity (411) and a bearing plate (424) is inserted therein. The bearing plate (424) is in contact with the surface of the positioning frame (421). The lower surface of the bearing plate (424) is fixedly connected to the second pin (425). The second pin (425) is inserted into the inner wall of the positioning frame (421). The upper surface of the bearing plate (424) is fixedly connected to the rubber pad (426). The rubber pad (426) is in contact with the lower surface of the nut (3).

2. The reinforced bolt fastener according to claim 1, characterized in that: The number of the load-bearing blocks (412) is two, and the two load-bearing blocks (412) are arranged symmetrically about the screw (1). The surface of the load-bearing blocks (412) is arc-shaped.

3. The reinforced bolt fastener according to claim 1, characterized in that: The connector (415) is arc-shaped and contacts the inner wall of the mounting cavity (411). The support plate (416) contacts the upper surface of the load block (412).

4. A reinforced bolt fastener according to claim 1, characterized in that: There are two torsion springs (417), which are arranged symmetrically about the connector (415) and are sleeved on the surface of the rotating shaft (414).

5. A reinforced bolt fastener according to claim 1, characterized in that: The positioning frame (421) passes through the arc surface of the screw (1), and the connecting frame (422) has the same length as the positioning frame (421).

6. A reinforced bolt fastener according to claim 1, characterized in that: There are two pins (423), and the two pins (423) are arranged symmetrically in the upper and lower positions.

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