Bolt strength detection device

Abstract

The utility model relates to the technical field of bolt detection, and discloses a bolt strength detection device which is characterized in that the top end of an installation box is provided with a pressure detector, the side end of the installation box is fixedly connected with two groups of installation frames, the side end of each group of installation frames is provided with a vertical groove, the interior of each vertical groove is provided with a rebound assembly, and the rebound assembly is fixedly connected with the pressure detector. A protection assembly is arranged between the side ends of the two sets of springback assemblies, a limiting assembly is arranged at the side end of one mounting frame, through the arrangement of the springback assemblies and the protection assembly, the protection assembly covers a box opening in the side end of the mounting box after being pushed downwards, and the protection assembly blocks the side end of the mounting box and surrounds a bolt with the mounting box; the protective assembly which moves downwards to shield the box opening of the mounting box is fixed through the limiting assembly, so that when a bolt material is broken due to extrusion of a press machine and small fragments or chippings are splashed out, the splashed fragments can be prevented from being splashed to workers through the arrangement of the protective plate, and damage to the workers is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bolt testing technology, specifically to a bolt strength testing device. Background Technology

[0002] The hexagonal head of a hexagonal bolt is more compact and easier to turn with a wrench, saving space and labor. Due to its special internal structure, the hexagonal bolt can withstand greater tensile and shear forces, allowing it to withstand greater loads. Because hexagonal bolts use a threaded connection, no adhesive or other accessories are needed, making installation very simple and quick. Hexagonal bolts can be reused after loosening; they do not need to be destroyed or discarded, preventing waste. As bolts are commonly used parts in mechanical assembly, they require high strength.

[0003] Existing patent application CN202322283898.5 discloses a hexagonal neck bolt strength testing device, including a testing platform with a hollow internal structure. A testing groove is formed in the top of the testing platform, and a bolt is movably placed within the testing groove. A support frame is fixedly connected to the top wall of the testing platform, and a cylinder is fixedly connected to the top surface of the support frame. A telescopic rod is fixedly connected to the output end of the bottom wall of the cylinder, and a testing plate is fixedly connected to the bottom end of the telescopic rod until the inner wall of the clamping plate abuts against the outer wall of the bolt. The bolt's clamping stability is enhanced by the threaded engagement with the outer wall of the bolt. The combined use of two sets of clamping plates and a limiting seat utilizes the high stability of three points to ensure the bolt is placed more securely. The cylinder pushes the testing plate downwards, abutting against the top wall of the bolt to test its strength. A pressure sensor transmits and displays the bolt strength data, providing a more intuitive reading. This device has a simple structure, is easy to operate, highly flexible, and has good stability.

[0004] The above solution has the following problems during implementation: When the bolt is subjected to strength testing by a press, the bolt will be subjected to strong pressure. As a result, the bolt material will break due to the extrusion of the press and small fragments or debris will be splashed out. The above solution does not have a corresponding protective structure. Therefore, when the bolt produces flying fragments during the pressure test, they can easily splash onto the workers and cause injury. Therefore, a bolt strength testing device is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a bolt strength testing device to solve the problem that in the prior art, when bolts are subjected to strong pressure during strength testing by a press, the bolt material will break due to the extrusion of the press, resulting in small fragments or debris flying out. The above solutions do not have corresponding protective structures, so when bolts generate flying fragments during pressure testing, they can easily splash onto workers, causing injury.

[0006] This utility model provides the following technical solution: a bolt strength testing device, including a testing platform, a mounting box fixedly connected to the top of the testing platform, a testing groove opened at the top of the testing platform, a clamping device provided inside the testing groove, a bolt clamped between the inner sides of the clamping device, a pressure detector provided at the top of the mounting box, two sets of mounting brackets fixedly connected to the side of the mounting box, a vertical groove opened at the side of each set of mounting brackets, a spring-loaded component provided inside each vertical groove, a protective component provided between the side ends of the two sets of spring-loaded components, and a limiting component provided at the side end of one of the mounting brackets.

[0007] As a preferred embodiment of the above technical solution, the rebound assembly includes a round rod, which is fixedly connected between the bottom end and the top end of the inner groove. A spring is sleeved on the outer end of the round rod, and a sleeve plate is sleeved on the outer end of the round rod. The top end of the spring is fixedly connected to the top end of the inner groove, and the bottom end of the spring is fixedly connected to the top end of the sleeve plate.

[0008] As a preferred embodiment of the above technical solution, the protective component includes a protective frame, which is fixedly connected to the side end of the sleeve plate, and a protective plate is fixedly connected to the inner side of the protective frame.

[0009] As a preferred embodiment of the above technical solution, the protective plate is transparent, and the side end of the sleeve has an insertion hole.

[0010] As a preferred embodiment of the above technical solution, the limiting component includes a cylinder, which is fixedly connected to the side end of one of the mounting brackets. The outer side end of the cylinder is provided with a pull head, and the side end of the pull head is fixedly connected to a connecting rod. The connecting rod is inserted into the interior of the cylinder, and the side end of the connecting rod is fixedly connected to a circular plate. The side end of the circular plate is fixedly connected to an insert rod, which is inserted into a vertical groove. The outer end of the connecting rod is fitted with a second spring, one end of which is fixedly connected to the inner side end of the cylinder, and the other end of which is fixedly connected to the side end of the circular plate.

[0011] As a preferred embodiment of the above technical solution, a groove is provided on the inner side of the cylinder, and a slider is fixedly connected to the side of the circular plate, the slider being slidably connected within the groove.

[0012] As a preferred embodiment of the above technical solution, the top end of the insertion rod is sloped, and the insertion rod is adapted to the insertion hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model, through the coordinated arrangement of a spring-loaded component, a protective component, and a limiting component, allows the bolt to be placed in the detection slot and then clamped and fixed by an existing clamping device, facilitating pressure detection by a pressure detector. Pushing the protective frame downwards causes the sleeve plate to move downwards, pulling the first spring. When the sleeve plate passes the position of the insertion rod, due to the sloping top of the insertion rod, the downward movement of the sleeve plate presses the insertion rod towards the cylinder. The movement of the insertion rod towards the cylinder causes the circular plate to compress the second spring. At this point, the sleeve plate continues to move downwards, and the insertion rod abuts against the side end of the sleeve plate until it passes the insertion hole on the side end of the sleeve plate. The second spring then pushes against the circular plate, causing the insertion rod to insert into the insertion hole, thus limiting the movement of the sleeve plate and the protective frame. The transparent protective plate can be fixed in position, blocking the side of the mounting box and surrounding the bolts. The pressure testing of the bolts on the testing platform inside the mounting box can be observed through the transparent protective plate. Therefore, when the bolt material breaks due to the pressure of the press, causing small fragments or debris to fly out, the protective plate prevents these fragments from hitting the workers and causing injury. After the bolt test is completed, pulling the pull head moves the connecting rod, circular plate, and insertion rod. After the insertion rod disengages from the insertion hole, it no longer limits the sleeve plate. When the spring pulls, the sleeve plate and protective frame retract, at which point the protective frame and protective plate move upwards, and the mounting box is automatically opened, facilitating the cleaning or removal of the bolts from the testing slot. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a bolt strength testing device;

[0016] Figure 2 A bottom view schematic diagram of a bolt strength testing device;

[0017] Figure 3 A schematic cross-sectional view of a bolt strength testing device;

[0018] Figure 4 for Figure 3 A magnified schematic diagram of part A in the diagram.

[0019] In the diagram: 1. Testing platform; 101. Mounting box; 102. Testing groove; 103. Clamping device; 2. Pressure detector; 3. Bolt; 4. Mounting bracket; 401. Vertical groove; 5. Rebound assembly; 501. Round rod; 502. Spring one; 503. Sleeve plate; 6. Protective assembly; 601. Protective frame; 602. Protective plate; 7. Limiting assembly; 701. Cylinder; 702. Pull head; 703. Connecting rod; 704. Round plate; 705. Insert rod; 706. Spring two; 707. Slide groove; 708. Slider. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figures 1-4 As shown, this utility model provides a technical solution: a bolt strength testing device, including a testing platform 1, a mounting box 101 fixedly connected to the top of the testing platform 1, a testing groove 102 opened at the top of the testing platform 1, a clamping device 103 provided inside the testing groove 102, a bolt 3 clamped between the inner sides of the clamping device 103, and a pressure detector 2 provided at the top of the mounting box 101. After the bolt 3 is placed in the testing groove 102, the bolt 3 is clamped and fixed by the existing clamping device 103, which facilitates the pressure detector 2 to perform pressure testing. The above-mentioned testing platform 1 and pressure detector 2 are existing presses, which will not be described in detail here. Two sets of mounting brackets 4 are fixedly connected to the side of the mounting box 101, and each set of mounting brackets 4 has a side end... The mounting bracket 4 has vertical slots 401, and each vertical slot 401 has a spring-loaded component 5 inside. A protective component 6 is provided between the side ends of two sets of spring-loaded components 5. A limiting component 7 is provided on the side end of one of the mounting brackets 4. With the setting of spring-loaded components 5 and protective components 6, the protective component 6 is pushed down and blocks the opening of the side end of the mounting box 101. The protective component 6 blocks the side end of the mounting box 101 and surrounds the bolt 3 with the mounting box 101. The limiting component 7 fixes the protective component 6 after it moves down and blocks the opening of the mounting box 101. Therefore, when the bolt 3 material breaks due to the extrusion of the press and small pieces or debris are splashed out, the setting of the protective plate 602 can prevent the flying fragments from hitting the workers and avoid injury to the workers.

[0022] As one implementation method in this embodiment, such as Figure 1 and Figure 2As shown, the rebound assembly 5 includes a round rod 501, which is fixedly connected between the bottom and top of the inner side of the vertical groove 401. A spring 502 is sleeved on the outer end of the round rod 501, and a sleeve plate 503 is sleeved on the outer end of the round rod 501. The top end of the spring 502 is fixedly connected to the top of the inner side of the vertical groove 401, and the bottom end of the spring 502 is fixedly connected to the top of the sleeve plate 503. The protective assembly 6 includes a protective frame 601, which is fixedly connected to the side of the sleeve plate 503. A protective plate 602 is fixedly connected to the inner side of the protective frame 601. The protective plate 602 is transparent, and the side of the sleeve plate 503 has an opening. There is an insertion hole (not shown). The insertion hole is located on the side of the sleeve 503 near the end of the limiting component 7. In practice, by pushing the protective frame 601 downward, the sleeve 503 moves downward. The sleeve 503 pulls the spring 502, and the protective plate 602 moves downward to cover the side of the mounting box 101 and surrounds the bolt 3. The pressure detection of the bolt 3 on the testing table 1 inside the mounting box 101 can be observed through the transparent protective plate 602. The limiting component 7 fixes the lowered protective plate 602, thereby preventing flying fragments from splashing onto the staff and avoiding injury to the staff.

[0023] As one implementation method in this embodiment, such as Figure 3 and Figure 4As shown, the limiting component 7 includes a cylinder 701, which is fixedly connected to the side of one of the mounting brackets 4. A pull head 702 is provided on the outer side of the cylinder 701, and a connecting rod 703 is fixedly connected to the side of the pull head 702. The connecting rod 703 is inserted into the interior of the cylinder 701. A circular plate 704 is fixedly connected to the side of the connecting rod 703, and an insert rod 705 is fixedly connected to the side of the circular plate 704. The insert rod 705 is inserted into the vertical groove 401. A second spring 706 is sleeved on the outer end of the connecting rod 703, and one end of the second spring 706 is fixedly connected to the cylinder 701. The inner side of cylinder 701 has a groove 707. A slider 708 is fixedly connected to the side of the circular plate 704. The slider 708 is slidably connected in the groove 707. The top of the insertion rod 705 is sloped and fits into the insertion hole. In practice, by pushing the protective frame 601 downward, the sleeve 503 moves downward. The sleeve 503 pulls the spring 502 to stretch. When the sleeve 503 passes the position of the insertion rod 705, the top of the insertion rod 705 is sloped. Therefore, the sleeve 503 moves downward to press the insertion rod 705 into the cylinder 701. The insertion rod 705 moving into the cylinder 701 causes the circular plate 704 to compress the spring 706, causing it to contract. At this time, the sleeve 503 continues to move downward, and the insertion rod 705 abuts against the side end of the sleeve 503 until it passes the insertion hole on the side end of the sleeve 503. Then, the spring 706 pushes against the circular plate 704 to drive the insertion rod 705 into the insertion hole, thereby limiting the position of the sleeve 503 and the protective frame 601. The positions of the sleeve 503, the protective frame 601, and the transparent protective plate 602 are thus fixed. The device can be fixed in place. The protective plate 602 can prevent flying fragments from hitting the staff and causing injury. After the inspection of the bolt 3 is completed, the connecting rod 703, the round plate 704 and the insertion rod 705 are moved by pulling the pull head 702. After the insertion rod 705 is disengaged from the insertion hole, it no longer limits the sleeve plate 503. The spring 502 pulls the sleeve plate 503 and the protective frame 601 to retract. At this time, the protective frame 601 and the protective plate 602 move upward, and the installation box 101 is automatically opened, so as to facilitate cleaning or removing the bolt 3 in the inspection slot 102.

[0024] Working principle: After placing the bolt 3 in the detection slot 102, the bolt 3 is clamped and fixed by the existing clamping device 103, which facilitates pressure detection by the pressure detector 2. By pushing the protective frame 601 downward, the sleeve 503 moves down, and the sleeve 503 pulls the spring 502. When the sleeve 503 passes the position of the insertion rod 705, since the top of the insertion rod 705 is sloped, the downward movement of the sleeve 503 can press against the insertion rod 705. As the cylinder 701 moves inward, the insertion rod 705 moves towards the inside of the cylinder 701, causing the circular plate 704 to compress the second spring 706 and retract. At this time, the sleeve 503 continues to move downward, and the insertion rod 705 abuts against the side end of the sleeve 503 until the insertion rod 705 passes through the insertion hole on the side end of the sleeve 503. Then, the second spring 706 pushes against the circular plate 704, causing the insertion rod 705 to be inserted into the insertion hole, thereby limiting the sleeve 503 and the protective frame 601. The transparent protective plate 602 can be fixed in position. At this time, the protective plate 602 blocks the side of the mounting box 101 and surrounds the bolt 3. The pressure test of the bolt 3 on the test table 1 inside the mounting box 101 can be observed through the transparent protective plate 602. Therefore, when the bolt 3 material breaks due to the extrusion of the press and small pieces or debris are splashed out, the protective plate 602 can prevent the splashed fragments from hitting the staff and avoid injury. After the test of the bolt 3 is completed, the connecting rod 703, the circular plate 704 and the insertion rod 705 are moved by pulling the pull head 702. After the insertion rod 705 is disengaged from the insertion hole, it no longer limits the sleeve plate 503. The spring 502 pulls the sleeve plate 503 and the protective frame 601 to retract. At this time, the protective frame 601 and the protective plate 602 move upward, and the mounting box 101 is automatically opened, which makes it easy to clean or remove the bolt 3 in the test slot 102.

[0025] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A bolt strength testing device, comprising a testing platform (1), wherein a mounting box (101) is fixedly connected to the top of the testing platform (1), a testing groove (102) is provided at the top of the testing platform (1), a clamping device (103) is provided inside the testing groove (102), a bolt (3) is clamped between the inner sides of the clamping device (103), and a pressure detector (2) is provided at the top of the mounting box (101), characterized in that: The mounting box (101) is fixedly connected to two sets of mounting brackets (4). Each set of mounting brackets (4) has a vertical groove (401) on its side. Each vertical groove (401) has a spring-loaded component (5) inside. A protective component (6) is provided between the side ends of the two sets of spring-loaded components (5). One of the mounting brackets (4) has a limiting component (7) on its side end.

2. The bolt strength testing device according to claim 1, characterized in that: The rebound assembly (5) includes a round rod (501), which is fixedly connected between the bottom end and the top end of the vertical groove (401). A spring (502) is sleeved on the outer end of the round rod (501), and a sleeve plate (503) is sleeved on the outer end of the round rod (501). The top end of the spring (502) is fixedly connected to the top end of the vertical groove (401), and the bottom end of the spring (502) is fixedly connected to the top end of the sleeve plate (503).

3. The bolt strength testing device according to claim 2, characterized in that: The protective component (6) includes a protective frame (601), which is fixedly connected to the side of the sleeve (503), and a protective plate (602) is fixedly connected to the inner side of the protective frame (601).

4. The bolt strength testing device according to claim 3, characterized in that: The protective plate (602) is transparent, and the sleeve plate (503) has an insertion hole on its side.

5. A bolt strength testing device according to claim 4, characterized in that: The limiting component (7) includes a cylinder (701), which is fixedly connected to the side end of one of the mounting brackets (4). The outer side end of the cylinder (701) is provided with a pull head (702), and the side end of the pull head (702) is fixedly connected with a connecting rod (703). The connecting rod (703) is inserted into the inside of the cylinder (701). The side end of the connecting rod (703) is fixedly connected with a circular plate (704), and the side end of the circular plate (704) is fixedly connected with an insert rod (705). The insert rod (705) is inserted into the vertical groove (401). The outer end of the connecting rod (703) is fitted with a second spring (706). One end of the second spring (706) is fixedly connected to the inner side end of the cylinder (701), and the other end of the second spring (706) is fixedly connected to the side end of the circular plate (704).

6. The bolt strength testing device according to claim 5, characterized in that: The inner side of the cylinder (701) is provided with a groove (707), and the side of the circular plate (704) is fixedly connected with a slider (708), which is slidably connected in the groove (707).

7. A bolt strength testing device according to claim 5, characterized in that: The top of the insertion rod (705) is sloped, and the insertion rod (705) is adapted to the insertion hole.

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