Fastener tensile test device

By introducing a protective assembly consisting of a protective plate and pulleys, along with a monitoring assembly of a camera and display screen, into the fastener tensile testing device, the problems of bolt splashing and unobservable test results are solved, achieving safe and efficient tensile testing.

CN224247275UActive Publication Date: 2026-05-15上海晓林船用配件有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
上海晓林船用配件有限公司
Filing Date
2025-03-10
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing fastener tensile testing equipment lacks protective measures during the testing process, which may cause bolts to fly when they break, posing a safety hazard. Furthermore, the protective cover has low adjustment efficiency, affecting the test results.

Method used

Protective components, including protective plates, pulleys, and grooves, are used to prevent bolts from flying out. At the same time, cameras and displays are used to monitor the bolt stretching process to ensure test safety and result accuracy.

Benefits of technology

It effectively prevents bolts from flying out, improves test safety, and ensures the accuracy of test results through real-time monitoring.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a fastener tensile testing device, which relates to the technical field of fastener testing, and comprises a workbench, two tensile blocks arranged on the top of the workbench, a protection assembly arranged on the outer sides of the tensile blocks and used for preventing a bolt fastener from splashing, a monitoring assembly arranged on the top of the workbench, and a control assembly arranged on the top of the workbench, the monitoring assembly is used for monitoring the stretching process of a bolt fastener and comprises a camera, a protection box and a display screen. According to the fastener tensile test device, a bolt fastener can be prevented from flying out in the tensile test process through the protection assembly, the use position of a protection plate in the protection assembly is convenient to adjust by adopting a pulley moving mode, and the bolt fastener can be shot in the tensile process through the monitoring assembly; and a shot picture is displayed through the display screen, so that a worker can watch the stretching process of the bolt fastener, and the worker is ensured to judge the test result of the bolt fastener.
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Description

Technical Field

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

[0002] Fasteners are mechanical components used to tightly connect two or more objects together, such as bolts. Bolts are key components in mechanical assemblies used to connect two or more parts. They provide a detachable connection by cooperating with nuts or, in some cases, by being screwed directly into a threaded hole. However, existing testing tools lack protective measures during testing, and bolts may shatter and scatter, posing a safety hazard during bolt tensile testing.

[0003] To address the aforementioned issues, CN202321889870.X discloses a "Bolt Fastener Tensile Testing Device," which, by incorporating two semi-protective components, helps ensure the bolt fastener breaks and flies out during the testing process, thus enhancing safety. However, this device still has certain drawbacks in practical use. For example, when the protective cover in the semi-protective components needs to be moved, the operator must rotate the drive screw by hand to adjust its position. The drive screw requires multiple rotations to adjust the cover to the appropriate position, resulting in slow adjustment efficiency. Furthermore, when using semi-protective components to surround the bolt fastener for protection, the obstruction of the protective cover prevents the operator from observing the tensile process of the bolt fastener, potentially affecting the test results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a fastener tensile testing device, which prevents the bolt fastener from flying out during the tensile test through a protective component, and allows the operator to observe the tensile process of the bolt fastener through a monitoring component.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A fastener tensile testing device includes: a workbench, two tensile blocks on the top of the workbench, and a protective component on the outside of the tensile blocks to prevent bolts and fasteners from splashing. The protective component includes: a protective plate, a pulley, and a groove. A monitoring component is provided on the top of the workbench to monitor the tensile process of the bolts and fasteners. The monitoring component includes: a camera, a protective box, and a display screen.

[0007] Optionally, protective plates are provided on both sides of the top of the workbench, and two pulleys are installed on both sides of the bottom of the protective plates. Two sliding grooves are opened on both sides of the top of the workbench, and the bottom of the pulleys fits into the sliding grooves. A handle is installed on one side of the outer end of each of the two protective plates. Upright plates are connected to both sides of the top of the workbench, and magnets are connected to both sides of the outer end of each upright plate. The protective assembly consisting of the protective plates, pulleys, and sliding grooves is used to prevent bolt fasteners from flying.

[0008] Optionally, a camera is installed on the top of the workbench, and a protective box is provided on the outside of the camera. A display screen is provided on one side of the top of the workbench. A mounting groove is opened on the top of the protective box, and tempered glass is installed inside the mounting groove. Side plates are connected to both sides of the outer end of the protective box, and through holes are opened on the top of the side plates. Two threaded holes are opened on the top of the workbench, and threaded rods that are threadedly connected to the threaded holes are provided inside the through holes. The monitoring component consisting of the camera, the protective box, and the display screen is used to monitor the tensioning process of the bolt fastener.

[0009] Optionally, vertical plates are connected to both sides of the top of the workbench, and a hydraulic rod is installed on one side of the outer end of the vertical plate. One end of the hydraulic rod is connected to the stretching block. A placement groove is opened on one side of the outer end of the stretching block. Limiting blocks are connected to the top and bottom of the stretching block. Limiting rods are connected to the inner sides of the two vertical plates. A limiting hole is opened on one side of the outer end of the limiting block, which is slidably connected to the limiting rod. The hydraulic rod is used to adjust the position of the stretching block.

[0010] The beneficial effects of this utility model are:

[0011] The advantages of this utility model are that the protective component can prevent bolts and fasteners from flying out during tensile testing, and the protective plate in this protective component adopts a pulley movement method to facilitate the adjustment of the position of the protective plate.

[0012] Secondly, the monitoring component can capture images during the tensioning process of the bolt fasteners and display the images on a screen, allowing staff to observe the tensioning process and ensure accurate assessment of the test results. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the workbench structure of this utility model.

[0016] Figure 4This is a schematic diagram of the protective plate structure of this utility model.

[0017] Figure 5 This is a schematic diagram of the protective box structure of this utility model.

[0018] Figure 6 This is a schematic diagram of the tension block structure of this utility model.

[0019] Figure 7 For the present utility model Figure 1 Enlarged view of point A in the image.

[0020] Figures 1-7 In the middle: 1-Workbench; 101-Stretch block; 2-Guard plate; 201-Pulley; 202-Slide groove; 3-Handle; 301-Upright plate; 302-Magnet block; 4-Camera; 401-Guard box; 402-Display screen; 5-Tempered glass; 501-Side plate; 502-Through hole; 503-Threaded hole; 504-Threaded rod; 6-Upright plate; 601-Hydraulic rod; 602-Placement groove; 7-Limit block; 701-Limit rod; 702-Limit hole. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0023] like Figures 1-7 As shown, a fastener tensile testing device includes: a workbench 1, two tensile blocks 101 are provided on the top of the workbench 1, and a protective component is provided on the outside of the tensile blocks 101 to prevent bolts and fasteners from splashing. The protective component includes: a protective plate 2, a pulley 201 and a slide groove 202. A monitoring component is provided on the top of the workbench 1 to monitor the tensile process of the bolts and fasteners. The monitoring component includes: a camera 4, a protective box 401 and a display screen 402.

[0024] The workbench 1 has protective plates 2 on both sides of its top. Each protective plate 2 has two pulleys 201 on both sides of its bottom. Each side of the top of the workbench 1 has two grooves 202. The bottom of the pulleys 201 fits into the grooves 202. When the tension block 101 is used to stretch the bolt fastener, the two protective plates 2 are moved inward until the magnet block 302 fits into the protective plate 2. At this time, the protective plates 2 can protect the bolt fastener from flying out of the protective plates 2 during the stretching process, which helps to ensure the safety of the bolt fastener during the inspection process. The protective plates 2 can slide inside the grooves 202 through the pulleys 201 when they move, which facilitates the movement of the protective plates 2.

[0025] Each of the two protective plates 2 has a handle 3 installed on one side of its outer end. The top of the workbench 1 has two upright plates 301 connected to both sides. The two sides of the outer end of the upright plates 301 are connected to magnet blocks 302. Since the protective plates 2 are made of low carbon steel, they not only have good impact resistance, but also can be magnetically attracted to the magnet blocks 302. Therefore, after the magnet blocks 302 are attached to the protective plates 2, the position of the protective plates 2 is fixed by the magnetic attraction between the protective plates 2 and the magnet blocks 302. The handles 3 make it easy for the staff to move the protective plates 2. When it is necessary to open the protective plates 2, the two protective plates 2 are moved to the sides respectively, so that the protective plates 2 and the magnet blocks 302 are separated until the stretching block 101 is exposed.

[0026] The workbench 1 is equipped with a camera 4 on its top, and a protective box 401 is installed on the outside of the camera 4. A display screen 402 is installed on one side of the top of the workbench 1. When the bolt fastener is stretched by the stretching block 101, the camera 4 captures the stretching process of the bolt fastener. The camera 4 is connected to the display screen 402, and the image captured by the camera 4 can be transmitted to the display screen 402. Therefore, the operator can observe the stretching process of the bolt fastener through the display screen 402. The display screen 402 can be removed from the top of the workbench 1 and used elsewhere.

[0027] The protective case 401 has a mounting groove on its top, into which tempered glass 5 is installed. Side plates 501 are connected to both outer ends of the protective case 401. Through holes 502 are formed on the top of the side plates 501. Two threaded holes 503 are formed on the top of the workbench 1. Threaded rods 504, threaded into the through holes 502, are threaded into the threaded holes 503. The protective case 401 is made of low-carbon steel to protect the camera 4, while the tempered glass 5 ensures that the camera 4 can capture the tension of bolts and fasteners. If the tempered glass 5 is damaged by flying bolts, the threaded rod 504 can be turned out from the through hole 502 and the threaded hole 503, and then the protective box 401 can be removed from the top of the workbench 1. Then the protective box 401 or the tempered glass 5 can be replaced. When installing the protective box 401, place the protective box 401 on the top of the workbench 1, align the through hole 502 with the threaded hole 503, and then pass one end of the threaded rod 504 through the through hole 502 and turn it into the threaded hole 503.

[0028] The workbench 1 has vertical plates 6 connected to both sides of its top. A hydraulic rod 601 is installed on one side of the outer end of the vertical plate 6. One end of the hydraulic rod 601 is connected to the tension block 101. A placement groove 602 is opened on one side of the outer end of the tension block 101. When using the device, one end of the bolt fastener is placed in one of the placement grooves 602, and the other end of the bolt fastener is placed in the other placement groove 602. Then, the two hydraulic rods 601 drive the two tension blocks 101 to move to both sides, thereby performing a tensile test on the threaded fastener between the two tension blocks 101. Since the placement groove 602 has an inverted convex structure, after both ends of the bolt fastener slide into the placement groove 602, the bolt head and nut respectively lock the two ends of the threaded fastener into the placement groove 602, thereby preventing the bolt fastener from sliding out of the placement groove 602 during the tensioning process.

[0029] The tension block 101 is connected to limit blocks 7 at both the top and bottom, and the inner sides of the two vertical plates 6 are connected to limit rods 701. A limit hole 702 is provided on one side of the outer end of the limit block 7, which is slidably connected to the limit rod 701. When the tension block 101 moves, it will drive the limit block 7 to move, and the limit block 7 will slide on the outside of the limit rod 701 through the limit hole 702. Thus, the limit rod 701 and the limit hole 702 limit the limit block 7 and the tension block 101, and prevent the tension block 101 from deviating during the movement.

[0030] Working principle:

[0031] When using this device, place one end of the bolt fastener in one of the placement slots 602, and the other end in the other placement slot 602. Then, move the two protective plates 2 inwards until the magnet block 302 is in contact with the protective plate 2. At this point, the protective plate 2 can protect the bolt fastener from flying out of the protective plate 2 during the stretching process, which helps to ensure the safety of the bolt fastener during the testing process. The protective plate 2 can slide inside the slide groove 202 through the pulley 201, which facilitates the movement of the protective plate 2. Then, the two hydraulic rods 601 drive the two stretching blocks 101 to move to both sides, thereby performing a stretching test on the threaded fastener between the two stretching blocks 101. The stretching process of the bolt fastener can be captured by the camera 4. The camera 4 is connected to the display screen 402, which can transmit the image captured by the camera 4 to the display screen 402. Therefore, the operator can observe the stretching process of the bolt fastener through the display screen 402.

[0032] The protective box 401 is made of low-carbon steel to protect the camera 4, while the tempered glass 5 is used to ensure that the camera 4 can capture the tension of the bolt fasteners. If the tempered glass 5 is damaged by the flying bolt fasteners, the threaded rod 504 can be turned out from the through hole 502 and the threaded hole 503, and then the protective box 401 can be removed from the top of the workbench 1. Then the protective box 401 or the tempered glass 5 can be replaced. When installing the protective box 401, place the protective box 401 on the top of the workbench 1, align the through hole 502 with the threaded hole 503, and then pass one end of the threaded rod 504 through the through hole 502 and turn it into the threaded hole 503.

[0033] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0034] The fastener tensile testing device provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fastener tensile testing device, characterized in that, include: Workbench (1); Two stretching blocks (101) are provided on the top of the workbench (1); The outer side of the tension block (101) is provided with a protective component to prevent bolt fasteners from splashing. The protective component includes: a protective plate (2), a pulley (201) and a groove (202). The workbench (1) is equipped with a monitoring component on top for monitoring the tensioning process of bolt fasteners. The monitoring component includes a camera (4), a protective box (401), and a display screen (402).

2. The fastener tensile testing device according to claim 1, characterized in that, The workbench (1) is provided with protective plates (2) on both sides of the top. Two pulleys (201) are installed on both sides of the bottom of the protective plates (2). Two sliding grooves (202) are opened on both sides of the top of the workbench (1). The bottom of the pulleys (201) fits into the sliding grooves (202).

3. The fastener tensile testing device according to claim 2, characterized in that, Each of the two protective plates (2) has a handle (3) installed on one side of its outer end. The top two sides of the workbench (1) are connected to upright plates (301), and the outer sides of the upright plates (301) are connected to magnet blocks (302).

4. The fastener tensile testing device according to claim 1, characterized in that, A camera (4) is installed on the top of the workbench (1), a protective box (401) is provided on the outside of the camera (4), and a display screen (402) is provided on one side of the top of the workbench (1).

5. The fastener tensile testing device according to claim 4, characterized in that, The protective box (401) has an installation groove on the top, and tempered glass (5) is installed inside the installation groove. Side plates (501) are connected to both sides of the outer end of the protective box (401). A through hole (502) is opened on the top of the side plate (501). Two threaded holes (503) are opened on the top of the workbench (1). A threaded rod (504) that is threaded to the threaded hole (503) is provided inside the through hole (502).

6. The fastener tensile testing device according to claim 1, characterized in that, The workbench (1) has vertical plates (6) connected to both sides of its top. A hydraulic rod (601) is installed on one side of the outer end of the vertical plate (6). One end of the hydraulic rod (601) is connected to the stretching block (101). A placement groove (602) is provided on one side of the outer end of the stretching block (101).

7. The fastener tensile testing device according to claim 6, characterized in that, The top and bottom of the stretching block (101) are connected to limit blocks (7), and the inner sides of the two vertical plates (6) are connected to limit rods (701). A limit hole (702) is provided on one side of the outer end of the limit block (7) and is slidably connected to the limit rod (701).