Bolt strength detection device

Abstract

The utility model belongs to the technical field of bolt strength detection, and particularly relates to a bolt strength detection device. Comprising a base; the stand column is arranged on the base; the fixing assembly is used for stably fixing the bolt; the protection assembly is arranged around the detection main body in a surrounding manner, and is used for preventing chippings generated during explosion of the bolt in the strength detection process from splashing; the protection assembly comprises a lock catch arranged on the detection main body; the protective shell is arranged on the lock catch; the telescopic shell is arranged in the protective shell, and the protective range of the telescopic shell is adjusted according to needs; the positioning holes are formed in the two sides of the protective shell; the kidney-shaped holes are formed in the two sides of the telescopic shell, and the positioning holes communicate with the kidney-shaped holes; the fastening bolt penetrates through the positioning hole and the kidney-shaped hole; the nut and the thread are arranged on the fastening bolt, and the nut is screwed on the telescopic shell to be fixed to the protective shell. The utility model provides a bolt strength detection device which not only can ensure the detection accuracy, but also has a reliable protection function.

Description

Technical Field

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

[0002] In industrial production, bolts are fundamental and widely used connecting components, and their quality directly affects the stability and safety of the entire mechanical equipment. Accurate testing of bolt strength is a crucial step in ensuring that their quality meets standards.

[0003] Utility model patent CN211718014U discloses a non-destructive testing device for the surface hardness of high-strength bolts in steel structures. The device includes a concave frame, a lifting platform rotatably mounted on the lower inner surface of the frame, a base horizontally connected to the upper end of the lifting platform, a pressure head on the upper inner surface of the frame, a groove corresponding to the pressure head at the center of the upper surface of the base, and a knob rotatably mounted on one side of the base. This utility model relates to the field of bolt surface hardness testing technology. This non-destructive testing device for the surface hardness of high-strength bolts in steel structures utilizes the elasticity of a first and second spring. When bolt hardness testing is required, pulling the handle on the fixed plate and adjusting the sliding plate allows the bolt to be firmly clamped in the second limiting groove of the baffle and limiting plate. This not only reduces manual labor intensity but also improves the testing effect of bolt surface hardness.

[0004] This bolt strength testing device exhibits certain advantages in securing bolts, effectively preventing slippage during the strength testing process and thus improving the accuracy of the test, providing a certain level of quality assurance for industrial production. However, during bolt strength testing, due to various complex factors such as uneven bolt quality or excessive testing stress, the bolt may crack. Once a bolt cracks, the resulting bolt fragments will fly everywhere, and this technology cannot provide effective protection against them. This can easily cause bodily injury to on-site workers, seriously threatening their personal safety. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing a bolt strength testing device that can both ensure testing accuracy and provide reliable protection.

[0006] In view of this, the present invention provides a bolt strength testing device, comprising:

[0007] Base;

[0008] The column is mounted on the base;

[0009] The testing unit, mounted on the column, is used for strength testing of bolts.

[0010] A fixing component, mounted on the column, is used to securely fix the bolts and prevent them from slipping during strength testing;

[0011] The protective components are arranged around the testing body to prevent debris from flying out when the bolts crack during the strength test.

[0012] The protective component includes:

[0013] The locking mechanism is installed on the detection body.

[0014] A protective outer shell is mounted on the latch and surrounds the detection body.

[0015] The telescopic outer shell is located inside the protective shell, and the protective range can be adjusted as needed.

[0016] Positioning holes are located on both sides of the protective casing;

[0017] Waist holes are located on both sides of the telescopic outer shell, and positioning holes are connected to waist holes;

[0018] Fastening bolts are inserted into the positioning holes and the slotted holes;

[0019] The nut, threaded onto the fastening bolt, is tightened to secure the telescopic housing to the protective housing.

[0020] In the above technical solution, furthermore, the inner diameter of the protective shell and the telescopic shell is provided with a shock-absorbing buffer layer.

[0021] In any of the above technical solutions, further, the protective shell and the latch are connected by a movable connecting assembly, which includes:

[0022] The fixing bracket is located on the outside of the latch;

[0023] The rotating shaft is rotatably mounted on the fixed frame.

[0024] Connecting plates are located at both ends of the outer side of the protective shell, and both connecting plates are connected to the rotating shaft.

[0025] In any of the above technical solutions, the detection subject further includes:

[0026] The frame is mounted on the top of the column;

[0027] An electric push rod is mounted on the frame, and a locking buckle is located on the outside of the electric push rod;

[0028] The push plate is mounted on the piston rod of the electric push rod and is located inside the protective housing.

[0029] A pressure sensor, located at the bottom of the push plate, can monitor the pressure applied to the bolt in real time and transmit the pressure to the control unit.

[0030] The pressure block is located at the bottom of the push plate and is connected to the pressure sensor.

[0031] In any of the above technical solutions, the fixing component further includes:

[0032] Support sleeve, installed on the column;

[0033] The working platform is mounted on the support sleeve and is located below the pressure block.

[0034] The base is set on the working platform;

[0035] A positioning block is located on one side of the top of the base;

[0036] The screw, threaded in the form of a thread, is located on the other side of the base;

[0037] The groove is formed on the base;

[0038] The slider is slidably set in the groove and is connected to the screw.

[0039] Clamping blocks are set on the slider, and the clamping blocks and positioning blocks are symmetrically distributed.

[0040] A handle is located at one end of the screw.

[0041] In any of the above technical solutions, the fixing component further includes an anti-slip pad, which is disposed on the surface of the clamping block and the positioning block that contacts the bolt.

[0042] The beneficial effects of this utility model are:

[0043] 1. Adjust the position of the telescopic shell according to the specifications of the bolts and the testing requirements. Insert the fastening bolts into the positioning holes and waist holes, and tighten the nuts to fix the telescopic shell onto the protective shell. If the bolts burst during the testing process, the protective shell and the telescopic shell can block the bolt fragments from flying and prevent them from causing injury to the workers.

[0044] 2. When a bolt cracks during the strength test, the resulting impact force and high-speed flying debris will first come into contact with the shock-absorbing buffer layer. The shock-absorbing buffer layer can absorb part of the impact force through its own elastic deformation, converting the kinetic energy of the debris into its own elastic potential energy, and then gradually releasing it, thereby greatly reducing the direct impact of debris on the protective shell and telescopic shell, effectively reducing the risk of the shell cracking or being damaged due to impact.

[0045] 3. The protective housing can rotate around the pivot through the fixed frame, pivot, and connecting plate, providing a convenient and flexible opening and closing method for the protective components. This makes it easy for staff to place and remove bolts before and after inspection, thus improving work efficiency.

[0046] 4. The electric push rod piston rod extends, pushing the push plate downward. The push plate drives the pressure block to gradually approach the bolt and apply pressure to the bolt. The pressure sensor monitors the pressure applied to the bolt in real time, analyzes and records the test data, thus providing a precise and stable pressure application method for bolt strength testing.

[0047] 5. Hold the handle and rotate the screw to move the slider in the groove. The clamping block connected to the slider gradually approaches the positioning block until the clamping block clamps the bolt tightly, ensuring that the bolt will not move during the test, thereby ensuring the accuracy and reliability of the test results.

[0048] 6. When clamping the bolt, the anti-slip pad can buffer the pressure of the clamping block and the positioning block on the bolt surface, avoiding scratches, wear and other damage to the bolt surface caused by direct rigid contact, ensuring the integrity of the bolt surface, so as to facilitate subsequent performance evaluation or use of the bolt. Attached Figure Description

[0049] Figure 1 This is a first three-dimensional structural schematic diagram of this utility model;

[0050] Figure 2 This is a schematic diagram of the second three-dimensional structure of this utility model;

[0051] Figure 3 This is a partial three-dimensional structural schematic diagram of this utility model;

[0052] Figure 4 This is a three-dimensional structural diagram of the fixing component of this utility model;

[0053] The attached diagram is labeled as follows: 1. Base; 2. Column; 3. Protective component; 31. Lock; 32. Protective shell; 33. Telescopic shell; 34. Positioning hole; 35. Waist hole; 36. Fastening bolt; 37. Nut; 4. Shock-absorbing buffer layer; 5. Movable connecting component; 51. Fixing frame; 52. Rotating shaft; 53. Connecting plate; 6. Detection body; 61. Frame; 62. Electric push rod; 63. Push plate; 64. Pressure sensor; 65. Control unit; 66. Pressure block; 7. Fixing component; 71. Support sleeve; 72. Working platform; 73. Base; 74. Positioning block; 75. Screw; 76. Slide groove; 77. Slider; 78. Clamping block; 79. Handle; 8. Anti-slip pad. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0055] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0056] Example 1:

[0057] like Figures 1-3 As shown, this embodiment provides a bolt strength testing device, including:

[0058] Base 1;

[0059] Column 2 is mounted on base 1;

[0060] The testing body 6 is mounted on the column 2 and is used to perform strength testing on the bolts.

[0061] The fixing component 7 is installed on the column 2 to securely fix the bolts and prevent them from slipping during strength testing;

[0062] The protective component 3 is arranged around the testing body 6 to prevent debris from flying out when the bolt breaks during the strength test.

[0063] The protective component 3 includes:

[0064] Lock 31 is installed on the detection body 6;

[0065] The protective housing 32 is mounted on the latch 31 and surrounds the detection body 6.

[0066] The telescopic outer shell 33 is disposed inside the protective outer shell 32, and the protective range of the telescopic outer shell 33 can be adjusted as needed;

[0067] Positioning holes 34 are provided on both sides of the protective shell 32;

[0068] Waist holes 35 are provided on both sides of telescopic housing 33, and positioning holes 34 are connected to waist holes 35;

[0069] Fastening bolt 36 passes through positioning hole 34 and slot hole 35;

[0070] Nut 37 is threaded onto fastening bolt 36. When nut 37 is tightened, telescopic housing 33 is fixed onto protective housing 32.

[0071] In this technical solution, the fixing component 7 is mounted on the column 2, which can firmly fix the bolt and prevent it from slipping during strength testing, ensuring the stability of the bolt position during the testing process and providing a basis for accurate strength testing. The protective component 3 surrounds the testing body 6, mainly to block the flying debris generated by the bolt breaking during the strength testing process, protecting the personnel from injury. The locking buckle 31 in the protective component 3 is set on the testing body 6 and is used to connect the protective shell 32, so that the protective shell 32 can surround the testing body 6 to form effective protection. The telescopic shell 33 is set inside the protective shell 32, and the protection range can be adjusted as needed to adapt to the testing requirements of bolts of different specifications. The positioning holes 34 are opened on both sides of the protective shell 32, and the waist holes 35 are opened on both sides of the telescopic shell 33. By passing through the fastening bolts 36 and tightening the nuts 37, the telescopic shell 33 is fixed to the protective shell 32, realizing flexible adjustment and fixation of the protection range. The testing body 6 is set on the column 2 and is used for the strength testing operation of the bolt. By combining components such as a pressure application mechanism, different levels of pressure can be applied to the bolts to simulate the stress conditions in actual use scenarios, thereby detecting whether the bolt strength meets the standards.

[0072] Workflow: Place the bolt to be tested on the fixing component 7. Adjust the fixing component 7 to securely fix the bolt in the appropriate position. Adjust the position of the telescopic outer shell 33 in the protective component 3 according to the bolt specifications and testing requirements. Insert the fastening bolts 36 through the positioning holes 34 on both sides of the protective shell 32 and the waist holes 35 on both sides of the telescopic outer shell 33, and then tighten the nuts 37 to fix the telescopic outer shell 33 onto the protective shell 32, ensuring proper protection. Start the testing body 6. The pressure application mechanism in the testing body 6 begins to work, applying pressure to the bolt. During the pressure application process, the pressure sensor 64 monitors the pressure applied to the bolt in real time and transmits the pressure data to the control unit 65. The control unit 65 controls the operation of the testing body 6 according to the preset pressure range, gradually increasing the pressure according to the set program until the required pressure value for testing is reached. Throughout the entire strength testing process, the protective component 3 remains functional; if the bolt breaks during the testing process, the protective shell 32 and the telescopic outer shell 33 can prevent bolt fragments from flying and causing injury to personnel. After the strength test is completed, stop the operation of the testing body 6, loosen the fixing component 7, and remove the tested bolts. If necessary, loosen the nut 37 and adjust the position of the telescopic outer shell 33 to prepare for the next test. Simultaneously, clean any remaining bolt debris from the inside of the protective component 3 to keep the device clean for future use. The precise fixing component 7 and reliable protective component 3 ensure the safety of personnel during the testing process while guaranteeing the accuracy of the test results, meeting the stringent requirements of industrial production for bolt quality testing.

[0073] like Figure 2 and Figure 3 As shown, in this embodiment, the inner diameter of the protective shell 32 and the telescopic shell 33 is optimized to have a shock-absorbing buffer layer 4.

[0074] In this technical solution, a shock-absorbing buffer layer 4 is provided in the inner diameter of the protective shell 32 and the telescopic shell 33. The main purpose is to further improve the buffering capacity against the impact of bolt cracking, reduce the damage of debris to the protective component 3, thereby ensuring the safety of the staff in all aspects, extending the service life of the protective component 3, ensuring that the entire testing device can operate stably for a long time, and providing a reliable safety protection environment for bolt strength testing.

[0075] The shock-absorbing buffer layer 4 is made of materials with good elasticity and cushioning properties, such as rubber. When a bolt breaks during the strength test, the resulting impact force and high-speed flying debris will first come into contact with the shock-absorbing buffer layer 4. The shock-absorbing buffer layer 4 can absorb part of the impact force through its own elastic deformation, converting the kinetic energy of the debris into its own elastic potential energy, and then gradually releasing it. This greatly reduces the direct impact of debris on the protective shell 32 and the telescopic shell 33, effectively reducing the risk of the shell cracking or being damaged due to impact.

[0076] Combined with the explosion-proof properties of the protective housing 32 and the telescopic housing 33, the shock-absorbing buffer layer 4 provides dual protection. Even in extreme cases where debris breaches the buffer layer 4, the protective housing 32 and the telescopic housing 33, made of high-strength explosion-proof material, continue to block the debris, further ensuring the safety of personnel and preventing damage to other components inside the testing device from the debris.

[0077] For the telescopic housing 33, the shock-absorbing buffer layer 4 not only provides protection, but also plays a certain role in sealing and fitting when the telescopic housing 33 adjusts its protective range. This ensures that the telescopic housing 33 fits tightly with the protective housing 32 in different positions, avoiding any protective gaps and guaranteeing the consistency and integrity of the protective effect.

[0078] Example 2:

[0079] This embodiment provides a bolt strength testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] like Figure 1 and Figure 3 As shown, in this embodiment, the optimized protective shell 32 and the latch 31 are connected by a movable connecting assembly 5, which includes:

[0081] The fixing bracket 51 is located on the outside of the latch 31;

[0082] The rotating shaft 52 is rotatably mounted on the fixed frame 51;

[0083] Connecting plates 53 are located at both ends of the outer side of the protective housing 32, and both connecting plates 53 are connected to the rotating shaft 52.

[0084] In this technical solution, a movable connecting component 5 is provided between the protective shell 32 and the latch 31, providing a convenient and flexible opening and closing method for the protective component 3. This allows staff to place and remove bolts before and after testing, while ensuring that the protective shell 32 can stably surround the testing body 6 during testing, effectively preventing the flying debris generated by bolt breakage and improving the safety and ease of operation of the testing work.

[0085] The protective housing 32 can rotate around the rotating shaft 52 via the movable connecting assembly 5, which consists of a fixed frame 51, a rotating shaft 52, and connecting plates 53. The fixed frame 51 is located outside the latch 31, providing stable support for the rotating shaft 52. The rotating shaft 52 is rotatably mounted on the fixed frame 51, with its two ends connected to two connecting plates 53 on the outside of the protective housing 32, allowing the protective housing 32 to open and close around the rotating shaft 52. This design allows workers to open the protective housing 32 without cumbersome disassembly steps when performing bolt inspection, facilitating quick placement and removal of bolts and improving work efficiency.

[0086] When the protective housing 32 rotates to the closed position on the pivot 52, it tightly surrounds the testing body 6, forming a reliable protective barrier. During bolt strength testing, it effectively blocks flying debris generated by bolt breakage, protecting the safety of personnel and surrounding equipment. Even with significant impact during testing, the movable connecting assembly 5 ensures the stability of the protective housing 32, preventing it from opening due to vibration or impact. The design of the movable connecting assembly 5 also adapts to different testing scenarios and operational requirements. Because the protective housing 32 can be opened and closed flexibly, when maintenance, cleaning, or adjustment of the testing device is required, personnel can easily open the protective housing 32 to operate the internal components without damaging the overall structure of the protective assembly 32.

[0087] Example 3:

[0088] This embodiment provides a bolt strength testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0089] like Figures 1-3 As shown, in this embodiment, the optimized detection subject 6 includes:

[0090] The frame 61 is mounted on the upper end of the column 2;

[0091] An electric push rod 62 is mounted on a frame 61, and a latch 31 is mounted on the outside of the electric push rod 62.

[0092] Push plate 63 is mounted on the piston rod of electric push rod 62, and push plate 63 is located inside protective housing 32;

[0093] Pressure sensor 64 is located at the bottom of push plate 63. Pressure sensor 64 can monitor the pressure applied to the bolt in real time and transmit the pressure to control unit 65.

[0094] The pressure block 66 is located at the bottom of the push plate 63 and is connected to the pressure sensor 64.

[0095] In this technical solution, the frame 61 is mounted on the upper end of the column 2, providing a stable support structure for the entire detection body 6. An electric push rod 62 is mounted on the frame 61, serving as the power source for pressure application. The extension and retraction of its piston rod drives the push plate 63 to move up and down. The push plate 63 is located inside the protective housing 32. When the electric push rod 62 operates, the push plate 63 transmits the thrust of the electric push rod 62 to the pressure block 66, thereby applying pressure to the bolt placed at the detection position, simulating the stress on the bolt in actual use to detect its strength. A pressure sensor 64 is located at the bottom of the push plate 63 and connected to the pressure block 66. During the process of the pressure block 66 applying pressure to the bolt, the pressure sensor 64 can monitor the pressure applied to the bolt in real time and transmit the pressure data to the control unit 65 in the form of an electrical signal. The control unit 65 adjusts the working state of the electric push rod 62 according to the preset pressure range to ensure that the applied pressure meets the detection requirements and avoids excessive or insufficient pressure affecting the accuracy of the detection results.

[0096] Workflow: The bolt to be tested is placed on the fixing component 7, and the bolt is securely fixed in the appropriate position by adjusting the fixing component 7. Then, according to the bolt specifications and testing requirements, parameters such as the pressure range are preset in the control unit 65. The protective housing 32 is brought into normal working condition through the movable connection component 5. The testing program is then started. The control unit 65 sends a working command to the electric push rod 62, which begins to work. Its piston rod extends, pushing the push plate 63 downwards. The push plate 63 drives the pressure block 66 to gradually approach the bolt. When the pressure block 66 contacts the bolt, pressure is applied to the bolt. During the pressure application process, the pressure sensor 64 monitors the pressure applied to the bolt in real time and transmits the pressure data to the control unit 65. The control unit 65 adjusts the operation of the electric push rod 62 according to the preset pressure range. If the pressure does not reach the preset value, the control unit 65 controls the electric push rod 62 to continue extending the piston rod, increasing the pressure; if the pressure exceeds the preset value, the control unit 65 controls the electric push rod 62 to retract the piston rod, reducing the pressure, so that the pressure is always maintained within the preset range. After the test is completed, the control unit 65 controls the electric push rod 62 to retract the piston rod, causing the push plate 63 and pressure block 66 to rise and move away from the bolt. The operator opens the protective housing 32, removes the tested bolt, and analyzes and records the test data. This provides a precise and stable pressure application method for bolt strength testing, while simultaneously enabling real-time monitoring and feedback control of the test pressure. This ensures that the testing process meets standard requirements, yields accurate and reliable test results, and provides a strong basis for bolt quality assessment.

[0097] Example 4:

[0098] This embodiment provides a bolt strength testing device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0099] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the optimized fixing component 7 includes:

[0100] Support sleeve 71 is installed on column 2;

[0101] The working platform 72 is mounted on the support sleeve 71 and is located below the pressure block 66.

[0102] The base 73 is mounted on the working platform 72;

[0103] Positioning block 74 is located on one side of the top of base 73;

[0104] Screw 75 is threadedly disposed on the other side of base 73;

[0105] The slide 76 is formed on the base 73;

[0106] Slider 77 is slidably disposed in slide groove 76, and slider 77 is connected to screw 75;

[0107] Clamping block 78 is disposed on slider 77, and clamping block 78 is symmetrically distributed with positioning block 74;

[0108] Handle 79 is located at one end of screw 75.

[0109] In this technical solution, the support sleeve 71 is mounted on the column 2, and the working platform 72 is mounted on the support sleeve 71, providing a stable support foundation for the entire fixing assembly 7 and the bolt to be tested, ensuring that there will be no shaking or displacement during the testing process. The positioning block 74 is located on one side of the top of the base 73, enabling preliminary positioning of the bolt and determining its placement. The screw 75 is threaded onto the other side of the base 73, and the slider 77 is slidably mounted in the groove 76 and connected to the screw 75. The clamping block 78 is mounted on the slider 77 and symmetrically distributed with the positioning block 74. By rotating the screw 75, the slider 77 moves within the groove 76, causing the clamping block 78 to move closer to or further away from the positioning block 74, thus clamping and loosening the bolt to be tested, adapting to the fixing needs of bolts of different sizes. A handle 79 is located at one end of the screw 75, allowing operators to manually rotate the screw 75 for clamping and loosening operations, improving work efficiency.

[0110] Workflow: Based on the size of the bolt to be tested, place the bolt on the base 73, with one end resting against the positioning block 74, completing the initial positioning. The operator holds the handle 79 and rotates the screw 75. Because the screw 75 is threadedly connected to the base 73, the screw 75 moves during rotation, driving the slider 77 to move in the groove 76. As the slider 77 moves, the clamping block 78 connected to the slider 77 gradually approaches the positioning block 74 until the clamping block 78 tightly clamps the bolt, ensuring that the bolt will not move during the test. After the bolt is clamped and fixed, the pressure block 66 above can perform strength testing operations on the bolt, such as applying pressure. Throughout the entire testing process, the fixing assembly 7 continuously maintains stable fixation of the bolt. After the test is completed, the operator rotates the handle 79 in the opposite direction, causing the screw 75 to rotate in the opposite direction, which drives the slider 77 and the clamp 78 away from the positioning block 74, loosening the clamp on the bolt. Then the tested bolt can be removed from the base 73 for further processing. This provides a stable and reliable fixed support, ensuring that the bolt position is stable during the test, thereby ensuring the accuracy and reliability of the test results.

[0111] like Figure 1 , Figure 3 and Figure 4 As shown, in this embodiment, the optimized fixing component 7 further includes an anti-slip pad 8, which is disposed on the surfaces of the clamping block 78 and the positioning block 74 that contact the bolt.

[0112] In this technical solution, anti-slip pads 8 are provided on the surfaces of clamping block 78 and positioning block 74 that contact the bolt. The main purpose is to further enhance the fixing effect of the fixing component 7 on the bolt, prevent the bolt from sliding or displacing due to force during the testing process, ensure the accuracy of the test results, and avoid testing errors or equipment damage caused by bolt sliding.

[0113] The anti-slip pad 8 is typically made of a material with a high coefficient of friction, such as rubber. When the clamping block 78 and the positioning block 74 clamp the bolt, the anti-slip pad 8 is in close contact with the bolt surface, significantly increasing the friction between them and effectively preventing the bolt from slipping during testing. The anti-slip pad 8 also has a certain degree of flexibility, which cushions the pressure of the clamping block 78 and the positioning block 74 on the bolt surface when clamping the bolt, preventing scratches, wear, or other damage to the bolt surface caused by direct rigid contact, thus ensuring the integrity of the bolt surface for subsequent performance evaluation or use.

[0114] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A bolt strength testing device, characterized in that, include: Base (1); A column (2) is mounted on the base (1); The testing body (6) is set on the column (2) and is used to perform strength testing on the bolts; A fixing component (7) is provided on the column (2) to securely fix the bolt and prevent the bolt from slipping during strength testing; The protective component (3) is arranged around the detection body (6) to prevent the bolt from flying debris when it cracks during the strength test; The protective component (3) includes: A latch (31) is provided on the detection body (6); A protective outer shell (32) is disposed on the latch (31), and the protective outer shell (32) surrounds the detection body (6); A telescopic outer shell (33) is disposed inside the protective outer shell (32), and the telescopic outer shell (33) can adjust the protection range as needed; Positioning holes (34) are provided on both sides of the protective shell (32); Waist holes (35) are provided on both sides of the telescopic outer shell (33), and the positioning holes (34) are connected to the waist holes (35); Fastening bolts (36) are inserted into the positioning hole (34) and the waist hole (35); Nut (37) is threaded onto the fastening bolt (36), and the nut (37) tightens the telescopic outer shell (33) to fix it onto the protective outer shell (32).

2. The bolt strength testing device according to claim 1, characterized in that, The inner diameter of the protective shell (32) and the telescopic shell (33) is provided with a shock-absorbing buffer layer (4).

3. The bolt strength testing device according to claim 1, characterized in that, The protective shell (32) and the latch (31) are connected by a movable connecting assembly (5), the movable connecting assembly (5) comprising: A fixing bracket (51) is provided on the outside of the latch (31); The rotating shaft (52) is rotatably mounted on the fixed frame (51); Connecting plates (53) are disposed at both ends of the outer side of the protective shell (32), and both connecting plates (53) are connected to the rotating shaft (52).

4. The bolt strength testing device according to claim 1, characterized in that, The detection body (6) includes: A frame (61) is mounted on the upper end of the column (2); An electric push rod (62) is mounted on the frame (61), and a latch (31) is mounted on the outside of the electric push rod (62); A push plate (63) is disposed on the piston rod of the electric push rod (62), and the push plate (63) is located inside the protective housing (32); A pressure sensor (64) is disposed at the bottom of the push plate (63). The pressure sensor (64) can monitor the pressure applied to the bolt in real time and transmit the pressure to the control unit (65). A pressure block (66) is disposed at the bottom of the push plate (63), and the pressure block (66) is connected to the pressure sensor (64).

5. The bolt strength testing device according to claim 4, characterized in that, The fixing component (7) includes: A support sleeve (71) is provided on the column (2); A working platform (72) is disposed on the support sleeve (71), and the working platform (72) is located below the pressure block (66); A base (73) is disposed on the working platform (72); A positioning block (74) is disposed on one side of the top of the base (73); A screw (75) is threadedly disposed on the other side of the base (73); A groove (76) is formed on the base (73); A slider (77) is slidably disposed in the groove (76), and the slider (77) is connected to the screw (75); A clamping block (78) is disposed on the slider (77), and the clamping block (78) is symmetrically distributed with the positioning block (74); A handle (79) is provided at one end of the screw (75).

6. The bolt strength testing device according to claim 5, characterized in that, The fixing component (7) also includes an anti-slip pad (8), which is disposed on the surfaces of the clamping block (78) and the positioning block (74) that are in contact with the bolt.

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