Hardmeter
By designing the bidirectional screw and clamp in the hardness meter to fix the device position, and using the screw and return spring to fit the device with the detection probe, the detection quality problem caused by the device position offset is solved, and stable and efficient hardness detection is achieved.
Patent Information
- Application Number
- CN202421543232.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-02
AI Technical Summary
During hardness detection, the device position is prone to offset, resulting in the detection probe being unable to contact the device stably, affecting the detection quality.
A hardness meter is designed, including a working base plate, side plate, top box, hardness detection probe and hardness display table. The device position can be fixed by the matching of the bidirectional screw and the clamp; the combination of the screw and the return spring can fit the device with the detection probe and provide buffering when the pressure is too high.
It effectively prevents device position deviation, ensures stable contact between the detection probe and the device, improves detection quality, and prevents damage to the detection probe due to excessive pressure through the reset spring.
Smart Images

Figure CN222850442U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hardness testers, in particular to a hardness tester. Background Art
[0002] A hardness tester is a hardness testing instrument. The first hardness measurement of metal was proposed by Leo Mur, which indicates the ability of a material to resist a hard object from pressing into its surface. It is one of the important performance indicators of metal materials. Generally, the higher the hardness, the better the wear resistance. For example, patent application number CN202320373631.2 discloses a hardness tester, including a top seat, a base and a connecting arm, wherein the connecting arm connects the two ends of the top seat and the base to form a hardness tester body with a C-shaped structure, wherein a lifting mechanism is provided on the base, wherein an expandable loading mechanism is provided on the lifting mechanism, wherein a detection device and a display are provided on the top seat, and wherein the detection device is directly opposite to the loading mechanism; the utility model has a simple structure and a novel design. The application further expands the loading platform by moving two extension plates to both sides to accommodate larger detection objects. In addition, the extended extension plate is further supported by a support rod, which can effectively improve stability. When the above device detects a device, the position of the device is offset, so that the detection probe cannot stably contact the device, thereby affecting the quality of the detection. Utility Model Content
[0003] The main purpose of the utility model is to provide a hardness tester, which can effectively solve the problem in the background technology that when the device is tested, the position of the device is offset, so that the detection probe cannot stably contact with the device, affecting the quality of the detection.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a hardness tester, including a working base plate, a side plate is fixedly installed on one side of the upper surface of the working base plate, a top box is fixedly installed on the upper end surface of the side plate, a hardness detection probe is installed on the lower surface of the top box, a hardness display meter is installed on the top box, the hardness detection probe is connected to the hardness display meter through a data line, a screw is fixedly installed on the upper surface of the working base plate, a screw sleeve is sleeved and installed in the middle of the screw, a reset spring is installed on the upper surface of the screw sleeve, a mounting rod is fixedly installed on the upper end of the screw, a sliding sleeve is sleeved and installed in the middle of the mounting rod, and a positioning component is arranged on the upper surface of the sliding sleeve.
[0005] Preferably, an anti-slip strip is provided on the lower surface of the working bottom plate.
[0006] Preferably, a plurality of rotating rods are equidistantly arranged on the side surface of the screw sleeve.
[0007] Preferably, a slide groove is provided on the upper surface of the screw sleeve, a slider is slidably installed inside the slide groove, and the return spring is installed on the upper surface of the slider.
[0008] Preferably, the positioning assembly comprises a mounting frame, and the mounting frame is fixedly mounted on the upper surface of the sliding sleeve.
[0009] Preferably, clamping plates are slidably mounted on both sides of the inner surface of the mounting frame.
[0010] Preferably, a bidirectional screw rod is installed inside the mounting frame, and two screw thread sleeves are sleeved and installed in the middle of the bidirectional screw rod, and the two screw thread sleeves are respectively connected to two clamping plates.
[0011] Preferably, a guide groove is provided on the upper surface of the mounting frame, and guide blocks are fixedly mounted on the lower surfaces of the two clamping plates, and the guide blocks are slidably mounted inside the guide groove.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] (1) First, place the device to be tested between the two clamping plates inside the mounting frame. At this time, the staff rotates the bidirectional screw to make the two screw sleeves in the middle of the bidirectional screw move closer to each other. At the same time, the two clamping plates can be moved closer to each other. At the same time, the two clamping plates can be attached to both sides of the device to fix the device and prevent the device from being offset when the hardness test is performed on the device, which affects the quality of the test.
[0014] (2) The staff rotates the screw sleeve so that the screw sleeve and the screw rod move upward, and the screw sleeve drives the reset spring to move upward, so that the sleeve slides upward in the middle of the mounting rod, and at the same time, the mounting frame can be moved upward, and the device can be moved upward, so that the device and the hardness detection probe are fitted together. The hardness detection probe can then detect the device, and the inspection result will be displayed on the hardness display table. The reset spring will play a buffering role. When the device and the detection probe are fitted together, when the pressure is too large, the reset spring will be compressed downward, which can prevent the detection probe from being damaged due to excessive pressure when the device and the detection probe are fitted together. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of a hardness tester of the utility model;
[0016] Figure 2 It is a side view structural schematic diagram of a hardness tester of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of a mounting frame for a hardness tester of the utility model;
[0018] Figure 4This is a schematic diagram of a clamping plate structure of a hardness tester of the utility model;
[0019] Figure 5 It is a schematic diagram of the enlarged structure of point A of a hardness tester of the utility model.
[0020] In the figure: 1. working base plate; 2. anti-slip strip; 3. side plate; 4. top box; 5. positioning assembly; 501. mounting frame; 502. clamping plate; 503. guide block; 504. guide groove; 505. bidirectional screw; 506. screw threaded sleeve; 6. detection probe; 7. hardness display meter; 8. screw; 9. mounting rod; 10. sliding sleeve; 11. threaded sleeve; 12. rotating rod; 13. reset spring; 14. sliding groove; 15. slider. DETAILED DESCRIPTION
[0021] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] like Figure 1 , 2 As shown in Figure 5, a hardness tester comprises a working base plate 1, a side plate 3 is fixedly mounted on one side of the upper surface of the working base plate 1, a top box 4 is fixedly mounted on the upper end surface of the side plate 3, a hardness detection probe 6 is mounted on the lower surface of the top box 4, a hardness display meter 7 is mounted on the top box 4, the hardness detection probe 6 is connected to the hardness display meter 7 through a data line, a screw rod 8 is fixedly mounted on the upper surface of the working base plate 1, a screw sleeve 11 is sleeved on the middle part of the screw rod 8, a reset spring 13 is mounted on the upper surface of the screw sleeve 11, a mounting rod 9 is fixedly mounted on the upper end of the screw 8, a sliding sleeve 10 is sleeved on the middle part of the mounting rod 9, and a positioning component 5 is arranged on the upper surface of the sliding sleeve 10.
[0023] like Figure 1 As shown, the lower surface of the working bottom plate 1 is provided with an anti-slip strip 2, which can improve the stability of the device.
[0024] like Figure 1 As shown, a plurality of rotating rods 12 are equidistantly arranged on the side of the screw sleeve 11 , so that the staff can easily rotate the screw sleeve 11 .
[0025] like Figure 5 As shown, a slide groove 14 is provided on the upper surface of the screw sleeve 11, a slider 15 is slidably installed inside the slide groove 14, and the reset spring 13 is installed on the upper surface of the slider 15, so that when the screw sleeve 11 rotates, the reset spring 13 will not be driven to rotate.
[0026] like Figure 2 , 3 4, the positioning assembly 5 includes a mounting frame 501, the mounting frame 501 is fixedly mounted on the upper surface of the sliding sleeve 10, and the inner surface of the mounting frame 501 is slidably mounted with clamping plates 502 on both sides, and a bidirectional screw rod 505 is installed inside the mounting frame 501, and two screw rod screw sleeves 506 are installed in the middle of the bidirectional screw rod 505, and the two screw rod screw sleeves 506 are respectively connected to the two clamping plates 502, and the upper surface of the mounting frame 501 is provided with a guide groove 504, and the lower surfaces of the two clamping plates 502 are fixedly mounted with guide blocks 503, and the guide blocks 505 are fixedly mounted with guide blocks 503. 03 is slidably installed inside the guide groove 504. First, the device to be tested is placed between the two clamping plates 502 inside the mounting frame 501. At this time, the staff rotates the bidirectional screw 505 to make the two screw sleeves 506 in the middle of the bidirectional screw 505 move toward each other. At the same time, the two clamping plates 502 can be moved toward each other. At the same time, the two clamping plates 502 can be attached to both sides of the device to fix the device, prevent the device position from being offset when the hardness test is performed on the device, and ensure the efficiency of the test.
[0027] The working principle of this hardness tester:
[0028] When in use, when using the device to test the hardness of bolts and other devices, first place the device to be tested between the two clamping plates 502 inside the mounting frame 501. At this time, the staff rotates the bidirectional screw rod 505 to make the two screw thread sleeves 506 in the middle of the bidirectional screw rod 505 move toward each other. At the same time, the two clamping plates 502 can be fitted to the two sides of the device to fix the device, preventing the device position from being offset when the hardness test is performed on the device, thereby affecting the quality of the test. At this time, the staff rotates the thread sleeve 11 to make the thread sleeve 11 cooperate with the screw rod 8 to move upward. The screw sleeve 11 drives the reset spring 13 to move upward, so that the sleeve 10 slides upward in the middle of the mounting rod 9, and at the same time, the mounting frame 501 can be moved upward, and at the same time, the device can be moved upward, so that the device and the hardness detection probe 6 are fitted together, and the hardness detection probe 6 can detect the device at this time, and the inspection result will be displayed on the hardness display table 7, and the reset spring 13 will play a buffering role. When the device and the detection probe 6 are fitted together, when the pressure is too large, the reset spring 13 will be compressed downward, which can prevent the detection probe 6 from being damaged due to excessive pressure when the device and the detection probe 6 are fitted together.
[0029] The above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.
Claims
1. A hardness tester, comprising a working base plate (1), characterized in that: A side plate (3) is fixedly mounted on one side of the upper surface of the working base plate (1), a top box (4) is fixedly mounted on the upper end surface of the side plate (3), a hardness detection probe (6) is mounted on the lower surface of the top box (4), a hardness display meter (7) is mounted on the top box (4), and the hardness detection probe (6) is connected to the hardness display meter (7) via a data line; a screw rod (8) is fixedly mounted on the upper surface of the working base plate (1), a screw sleeve (11) is sleeved on the middle part of the screw rod (8), a return spring (13) is mounted on the upper surface of the screw sleeve (11), a mounting rod (9) is fixedly mounted on the upper end of the screw rod (8), a sliding sleeve (10) is sleeved on the middle part of the mounting rod (9), and a positioning component (5) is arranged on the upper surface of the sliding sleeve (10).
2. A hardness tester according to claim 1, characterized in that: The lower surface of the working bottom plate (1) is provided with an anti-slip strip (2).
3. A hardness tester according to claim 1, characterized in that: A plurality of rotating rods (12) are equidistantly arranged on the side of the screw sleeve (11).
4. A hardness tester according to claim 1, characterized in that: The upper surface of the screw sleeve (11) is provided with a slide groove (14), a slide block (15) is slidably installed inside the slide groove (14), and the return spring (13) is installed on the upper surface of the slide block (15).
5. A hardness tester according to claim 1, characterized in that: The positioning assembly (5) comprises a mounting frame (501), and the mounting frame (501) is fixedly mounted on the upper surface of the sliding sleeve (10).
6. A hardness tester according to claim 5, characterized in that: Clamping plates (502) are slidably mounted on both sides of the inner surface of the mounting frame (501).
7. A hardness tester according to claim 6, characterized in that: A bidirectional screw rod (505) is installed inside the mounting frame (501), and two screw rod sleeves (506) are sleeved and installed in the middle of the bidirectional screw rod (505), and the two screw rod sleeves (506) are respectively connected to the two clamping plates (502).
8. A hardness tester according to claim 7, characterized in that: A guide groove (504) is provided on the upper surface of the mounting frame (501), and guide blocks (503) are fixedly installed on the lower surfaces of the two clamping plates (502), and the guide blocks (503) are slidably installed inside the guide groove (504).
Citation Information
Patent Citations
Hardmeter
CN219641482U