Compression-resistant clamp for constructional engineering detection
By designing a clamping mechanism, a sliding shielding mechanism, and a debris discharge mechanism, the system automatically seals and unseals the inlet and outlet of concrete test blocks, solving the problem of cumbersome operation in existing technologies and improving ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XUANCHENG KEJIAN CONSTRUCTION ENGINEERING QUALITY INSPECTION CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-05-05
AI Technical Summary
Existing compressive strength clamps for building engineering testing require cumbersome manual operation during the loading and unloading of concrete test blocks, making them inconvenient to use.
By employing a clamping mechanism, a sliding shielding mechanism, and a debris discharge mechanism, and utilizing the cooperation of a magnet and a return spring, the system automatically seals and unseals the inlet and outlet of the specimen, reducing manual operation.
The sealing and unsealing of the specimen inlet and outlet can be completed without manual operation, saving manpower and making it more convenient to use.
Smart Images

Figure CN224202888U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressure-resistant clamp technology, and in particular to a pressure-resistant clamp for testing in building engineering. Background Technology
[0002] Building construction is a branch of construction engineering. Concrete is used when building houses. Before use, the concrete needs to be tested for strength. During the testing process, cement compressive strength clamps are used to clamp and fix it.
[0003] A search revealed that utility model patent CN221302959U discloses a novel pressure-resistant clamp for building engineering testing. In use, a concrete test block is first placed in a protective chamber, then the protective chamber is inserted into the clamp frame, and finally the protective plate is connected to the side of the clamp frame away from the protective chamber. When testing the concrete test block, if the concrete test block breaks, the protective chamber and the protective plate will intercept the flying debris from the concrete test block, preventing nearby workers from being injured.
[0004] Although the above-mentioned device can block the flying debris during the testing of concrete test blocks, in order to achieve the blocking function, the concrete test blocks need to be manually inserted into the clamp. After the test is completed, the concrete test blocks need to be manually removed again, which is too inconvenient in actual use.
[0005] Therefore, it is necessary to invent a pressure-resistant clamp for building engineering testing to solve the above problems. Utility Model Content
[0006] The purpose of this utility model is to provide a compression clamp for building engineering testing, which can seal the specimen inlet and outlet before the compression begins and unseal the specimen inlet and outlet after the test without manual operation. This saves manpower and is more convenient to use in practice. It solves the problem mentioned in the background art that in order to achieve the blocking function, the concrete specimen needs to be inserted into the clamp through a relatively cumbersome manual operation, and after the test is completed, the concrete specimen needs to be removed through another relatively cumbersome manual operation, which is too inconvenient in actual use.
[0007] According to one aspect of this disclosure, the following technical solution is provided: a compressive strength clamp for testing building engineering, comprising:
[0008] A clamping mechanism for clamping concrete test blocks;
[0009] A sliding shielding mechanism includes a block magnet fixedly nested on the front of a lower pressure plate and an arc-shaped shielding plate slidably disposed vertically inside the front side of a receiving cylinder. A positioning slider is fixedly disposed on the front of the arc-shaped shielding plate and slidably disposed vertically inside a positioning groove. A strip magnet that magnetically attracts the block magnet is fixedly nested on the back of the arc-shaped shielding plate.
[0010] A debris discharge mechanism is used to clean the debris from the test block inside the clamping mechanism.
[0011] According to at least one embodiment of the present disclosure, the pressure-resistant clamp for building engineering testing includes a receiving cylinder with a specimen inlet and outlet at the bottom front of the receiving cylinder and a positioning groove on the front inner side of the receiving cylinder.
[0012] According to at least one embodiment of the pressure-resistant fixture for building engineering testing, a sliding square shaft is slidably provided through the top of the receiving cylinder, a lower pressure plate is fixedly provided at the bottom end of the sliding square shaft and an upper pressure plate is fixedly provided at the top end of the sliding square shaft, and a return spring is sleeved on the bottom outer side of the sliding square shaft, and the return spring is fixedly connected between the inner wall of the receiving cylinder and the lower pressure plate.
[0013] According to at least one embodiment of the present disclosure, the building engineering testing anti-compression clamp includes a debris discharge mechanism comprising a handle fixedly disposed on the front side of the top of the receiving cylinder and a base plate fixedly disposed on the bottom of the receiving cylinder.
[0014] According to at least one embodiment of the present disclosure, a pressure-resistant fixture for testing building engineering is provided with a U-shaped base sleeved on the outer side of the base plate, and the base plate is rotatably disposed on the inner side of the U-shaped base by means of a pin.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This invention features a sliding blocking mechanism that allows the lower pressure plate to move downwards synchronously, simultaneously pulling the block magnet downwards and stretching the return spring. As the block magnet moves downwards, it drives the arc-shaped blocking plate downwards via the strip magnet, gradually sealing the specimen's inlet and outlet. Once the lower pressure plate is against the top of the specimen, the arc-shaped blocking plate completes the sealing of the specimen's inlet and outlet. As the lower pressure plate continues to move downwards to apply pressure to the specimen, the block magnet moves downwards synchronously inside the strip magnet. After the test is completed, the pressure device stops pressing down on the upper pressure plate, and the stretched return spring drives the lower pressure plate upwards to reset. As the lower pressure plate moves upwards, the block magnet and strip magnet simultaneously drive the arc-shaped blocking plate upwards to reset. Compared to existing technologies, this invention eliminates the need for manual operation, sealing the specimen's inlet and outlet before extrusion begins and releasing the seal after the test, saving manpower and making it more convenient in actual use. Attached Figure Description
[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0018] Figure 1 This is a schematic diagram of the overall structure of a pressure-resistant fixture for building engineering testing according to one embodiment of the present disclosure.
[0019] Figure 2 This is a schematic diagram of the clamping mechanism and debris discharge mechanism of a pressure-resistant fixture for building engineering testing according to one embodiment of the present disclosure.
[0020] Figure 3 This is a schematic diagram of the sliding shielding mechanism of a pressure-resistant clamp for building engineering testing according to one embodiment of the present disclosure.
[0021] The specific labels in the attached figures are as follows:
[0022] 1. Clamping mechanism; 11. Receiving cylinder; 12. Specimen inlet and outlet; 13. Positioning groove; 14. Sliding square shaft; 15. Lower pressure plate; 16. Upper pressure plate; 17. Return spring;
[0023] 2. Sliding blocking mechanism; 21. Block magnet; 22. Arc-shaped blocking plate; 23. Positioning slider; 24. Bar magnet;
[0024] 3. Debris discharge mechanism; 31. Handle; 32. Base plate; 33. U-shaped base. Detailed Implementation
[0025] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0026] Figure 1This is a schematic diagram of the overall structure of a pressure-resistant fixture for building engineering testing according to one embodiment of the present disclosure.
[0027] Figure 2 This is a schematic diagram of the clamping mechanism 1 and the debris discharge mechanism 3 of a pressure-resistant fixture for building engineering testing according to one embodiment of the present disclosure.
[0028] Figure 3 This is a schematic diagram of the sliding shielding mechanism 2 of a pressure-resistant clamp for building engineering testing according to one embodiment of the present disclosure.
[0029] like Figures 1-3 As shown, the pressure-resistant fixture for building engineering testing disclosed herein may include components such as a clamping mechanism 1, a sliding shielding mechanism 2, and a debris discharge mechanism 3.
[0030] like Figure 2 As shown in this disclosure, the clamping mechanism 1 includes a receiving cylinder 11. The receiving cylinder 11 has a specimen inlet / outlet 12 at the bottom front of the receiving cylinder 11. The receiving cylinder 11 has a positioning groove 13 at the front inner side. A sliding square shaft 14 is slidably connected through the top of the receiving cylinder 11. A lower pressure plate 15 is fixedly installed at the bottom of the sliding square shaft 14 and an upper pressure plate 16 is fixedly installed at the top of the sliding square shaft 14. A return spring 17 is sleeved on the bottom outer side of the sliding square shaft 14. The return spring 17 is fixedly connected between the inner wall of the receiving cylinder 11 and the lower pressure plate 15.
[0031] like Figure 3 As shown, in a preferred embodiment, the sliding shielding mechanism 2 includes a block magnet 21 fixedly nested on the front of the lower pressure plate 15 and an arc-shaped shielding plate 22 slidably disposed in the front of the inside of the receiving cylinder 11 in the vertical direction. The front of the arc-shaped shielding plate 22 is fixedly disposed on a positioning slider 23 slidably disposed in the inner side of the positioning groove 13 in the vertical direction, and the back of the arc-shaped shielding plate 22 is fixedly nested with a strip magnet 24 that magnetically attracts the block magnet 21.
[0032] By setting up a clamping mechanism 1 and a sliding blocking mechanism 2, the device can be placed directly below the pressure application equipment. The test block is then placed into the receiving cylinder 11 through the test piece inlet / outlet 12. The pressure application equipment then applies pressure to the upper pressure plate 16. Under pressure, the upper pressure plate 16 moves the lower pressure plate 15 downwards via the sliding square shaft 14. During this downward movement, the lower pressure plate 15 moves the block magnet 21 downwards simultaneously, stretching the return spring 17. As the block magnet 21 moves downwards, it moves the arc-shaped blocking plate 22 downwards simultaneously via the strip magnet 24, gradually sealing the test piece inlet / outlet 12. Once the lower pressure plate 15 is in contact with the top of the test piece, the arc-shaped blocking plate... The baffle 22 seals the specimen inlet and outlet 12. When the lower pressure plate 15 continues to move down to apply pressure to the specimen, the block magnet 21 moves down synchronously inside the bar magnet 24. After the test is completed, the pressure device no longer presses down on the upper pressure plate 16. The stretched return spring 17 drives the lower pressure plate 15 to move up and reset. When the lower pressure plate 15 moves up, the block magnet 21 and the bar magnet 24 drive the arc-shaped baffle 22 to move up and reset synchronously. Compared with the existing technology, the sealing of the specimen inlet and outlet 12 can be completed before the extrusion begins and the sealing of the specimen inlet and outlet 12 can be released after the test without manual operation. This saves manpower and is more convenient in actual use.
[0033] like Figure 2 As shown, in this disclosure, the debris discharge mechanism 3 includes a handle 31 fixedly disposed on the front side of the top of the receiving cylinder 11 and a base plate 32 fixedly disposed on the bottom of the receiving cylinder 11. A U-shaped base 33 is sleeved on the outer side of the base plate 32, and the base plate 32 is rotatably disposed on the inner side of the U-shaped base 33 by means of a pin.
[0034] Therefore, after the sliding shielding mechanism 2 is reset and the test specimen is removed, the handle 31 is pulled forward. The handle 31 drives the base plate 32 to rotate around the pin shaft through the receiving cylinder 11 until the receiving cylinder 11 is in an inclined state. At this time, all the specimen debris inside the receiving cylinder 11 slides out through the specimen inlet and outlet 12.
[0035] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.
[0036] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A compressive strength clamp for testing building engineering, characterized in that, include: A clamping mechanism for clamping concrete test blocks; A sliding shielding mechanism includes a block magnet fixedly nested on the front of a lower pressure plate and an arc-shaped shielding plate slidably disposed vertically inside the front side of a receiving cylinder. A positioning slider is fixedly disposed on the front of the arc-shaped shielding plate and slidably disposed vertically inside a positioning groove. A strip magnet that magnetically attracts the block magnet is fixedly nested on the back of the arc-shaped shielding plate. A debris discharge mechanism is used to clean the debris from the test block inside the clamping mechanism.
2. The compressive strength clamp for building engineering testing according to claim 1, characterized in that: The clamping mechanism includes a receiving cylinder, with a specimen inlet and outlet at the bottom front of the receiving cylinder and a positioning groove on the front inner side of the receiving cylinder.
3. The compressive strength clamp for building engineering testing according to claim 2, characterized in that: A sliding square shaft is slidably provided through the top of the receiving cylinder. A lower pressure plate is fixedly provided at the bottom end of the sliding square shaft and an upper pressure plate is fixedly provided at the top end of the sliding square shaft. A return spring is sleeved on the bottom outer side of the sliding square shaft. The return spring is fixedly connected between the inner wall of the receiving cylinder and the lower pressure plate.
4. The compressive strength clamp for building engineering testing according to claim 3, characterized in that: The debris discharge mechanism includes a handle fixedly installed on the front side of the top of the receiving cylinder and a base plate fixedly installed at the bottom of the receiving cylinder.
5. The compressive strength clamp for building engineering testing according to claim 4, characterized in that: A U-shaped base is sleeved on the outer side of the base plate, and the base plate is rotatably mounted on the inner side of the U-shaped base via a pin.
Citation Information
Patent Citations
Novel compression-resistant clamp for constructional engineering detection
CN221302959U