Foldable storage case for rockwell hardness tester
By introducing a locking mechanism consisting of a locking block, a resistance block, and a positioning block into the Rockwell hardness tester's carrying case, the problem of the carrying case becoming loose during vibration is solved, ensuring the safe transportation of the hardness tester.
Patent Information
- Application Number
- CN202522305898.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-31
AI Technical Summary
Existing Rockwell hardness tester carrying cases are prone to loosening at the joints under vibration, affecting the safe transportation of the hardness tester.
The anti-loosening mechanism employs a combination of locking blocks, resistance blocks, and positioning blocks. Through sliding connections and limiting the flipping angle, it ensures that the portable case unfolds stably and prevents it from becoming loose.
The portable case was able to unfold stably during transportation, ensuring the safe transport of the Rockwell hardness tester and preventing loosening of the connections.
Smart Images

Figure CN224676661U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Rockwell hardness tester portable case technology, and in particular to a foldable Rockwell hardness tester portable case. Background Technology
[0002] Rockwell hardness testers calculate the hardness value of metallic materials by measuring the difference in depth of the indenter under the initial test force and the total test force. On production lines for mechanical parts, to promptly identify problems with components, small benchtop Rockwell hardness testers are typically placed in a wheeled portable case and transported to the workshop via the wheels at the bottom of the case for hardness testing of suspicious parts.
[0003] To save space, portable cases for Rockwell hardness testers are typically designed to be foldable and easy to store, rather than used for storing small benchtop Rockwell hardness testers.
[0004] Most existing Rockwell hardness tester carrying cases are locked with buckles to ensure stable unfolding. However, during transportation of the Rockwell hardness tester, the connection points of the carrying case are prone to loosening under vibration, which in turn affects the safe transport of the Rockwell hardness tester. Utility Model Content
[0005] Therefore, it is necessary to provide a foldable Rockwell hardness tester carrying case to address the problem that the connection of the carrying case is prone to loosening under vibration.
[0006] The device includes: a movable seat, the inner wall of which is hinged with a first stop frame and a second stop frame; and an anti-loosening mechanism, the anti-loosening mechanism including a first cover plate slidably connected to the inner wall of the first stop frame, a second cover plate slidably connected to the inner wall of the second stop frame, a locking block and a resistance block slidably connected to both sides of the inner wall of the first cover plate, the surface of the locking block engaging with the inner wall of the second cover plate, and a positioning block fixedly connected to the top of the resistance block, the surface of the positioning block engaging with the locking block and the inner wall of the first cover plate in sequence.
[0007] In one embodiment, the inner walls of both the first and second baffles are slidably connected with fixing blocks, wherein the surface of one fixing block is engaged with the inner wall of the first baffle, and the surface of the fixing block on the other side is engaged with the inner wall of the second baffle.
[0008] In one embodiment, blocks are fixedly connected to all four sides of the surface of the movable base. The blocks limit the rotation angle of the first and second blocking frames, ensuring that the locking block can be accurately locked within the second cover, thereby ensuring the locking of the portable case after it is unfolded.
[0009] In one embodiment, two fixing pads are fixedly connected to the top of the locking block, with the ends of the fixing pads contacting the top of the positioning block. The fixing pads increase the resistance to the upward movement of the positioning block, ensuring that the positioning block is stably locked within the locking block and the first cover plate, and thus stably locking the locking block within the second cover plate, thereby ensuring a stable engagement between the first and second cover plates.
[0010] In one embodiment, two sliders are slidably connected to the inner wall of the movable base, and a pull bracket is hinged to the inner wall of each slider. Through the interaction of the sliders and the pull bracket, the pull bracket is housed within the movable base, reducing the space occupied by the pull bracket.
[0011] In one embodiment, two springs are fixedly connected to one side of the card block, and the other end of the springs is fixedly connected to the upper end of the inner wall of the first baffle.
[0012] In one embodiment, the inner wall of the movable base is provided with a plurality of limiting grooves, and the surface of the slider is slidably connected to the inner wall of the limiting grooves. The limiting grooves limit the movement of the slider, preventing the slider from detaching from the movable base.
[0013] In one embodiment, a limiting rope is fixedly connected to the top of the resistance block, and the other end of the limiting rope is fixedly connected to the top of the first baffle. Beneficial effects
[0014] 1. By cooperating with the locking block, resistance block and positioning block, the first cover plate is locked on the second cover plate, thereby achieving stable unfolding of the portable case and preventing loosening at the connection of the portable case during transportation, thus ensuring the safe transportation of the Rockwell hardness tester. 2. By using a fixing block, the first cover plate is locked inside the first stop frame, and the second cover plate is locked inside the second stop frame, thereby achieving stable unfolding of the portable case and preventing the first and second cover plates from shifting downwards, thus ensuring the safe transportation of the Rockwell hardness tester. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the movable base, the first stop frame, and the second stop frame of this utility model; Figure 3 This is an exploded view of the movable seat and the first stop frame of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.
[0017] Figure label: 100. Movable seat; 200. First stop frame; 300. Second stop frame; 400. Anti-loosening mechanism; 401. Locking block; 402. Resistance block; 403. Positioning block; 404. Spring; 405. Fixing pad; 406. Limiting rope; 407. First cover plate; 408. Second cover plate; 409. Pull frame; 410. Limiting groove; 411. Fixing block; 412. Stop block; 413. Slider. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0019] The following is combined Figures 1-5 This invention describes a foldable, portable case for a Rockwell hardness tester.
[0020] In one embodiment, a foldable Rockwell hardness tester carrying case includes: a movable base 100, with a first stop frame 200 and a second stop frame 300 hinged to the inner wall of the movable base 100; and an anti-loosening mechanism 400, which includes a first cover plate 407 slidably connected to the inner wall of the first stop frame 200, a second cover plate 408 slidably connected to the inner wall of the second stop frame 300, and a locking block 401 and a resistance block 402 slidably connected to both sides of the inner wall of the first cover plate 407. The surface of the locking block 401 is engaged with the inner wall of the second cover plate 408, and a positioning block 403 is fixedly connected to the top of the resistance block 402. The surface of the positioning block 403 is engaged with the locking block 401 and the inner wall of the first cover plate 407 in sequence.
[0021] In this embodiment, when the small benchtop Rockwell hardness tester needs to be transported to the workshop for mechanical parts, the two second stop frames 300 are pushed to rotate 90 degrees in sequence, and then the two first stop frames 200 are pushed to rotate 90 degrees in sequence. After the first cover plate 407 and the second cover plate 408 are pulled up to a suitable height, the locking block 401 moves and locks into the second cover plate 408, and the resistance block 402 slides into the first cover plate 407, so that one side of the resistance block 402 abuts against one side of the locking block 401. The positioning block 403 is then locked into the locking block 401 in sequence. The first cover plate 407 is locked onto the second cover plate 408. The other first cover plate 407 is locked onto the second cover plate 408 in the same manner. At this time, the worker lays a sponge pad or other soft pad inside the unfolded portable case, puts the small benchtop Rockwell hardness tester into the portable case, and can then carry the small benchtop Rockwell hardness tester to the corresponding location in the mechanical parts workshop. The small benchtop Rockwell hardness tester is taken out of the portable case and powered on to perform hardness testing on the mechanical parts in production.
[0022] When the carrying case is not in use, pull the resistance block 402 upwards away from the first cover plate 407, so that the positioning block 403 moves upwards away from the first cover plate 407 and the locking block 401, push the locking block 401 away from the second cover plate 408, push the first cover plate 407 and the second cover plate 408 downwards to a suitable height, push one side of the first stop frame 200 to flip 90 degrees, then push the other side of the first stop frame 200 to flip 90 degrees, and then push both second stop frames 300 to flip 90 degrees at the same time, thereby folding and storing the carrying case.
[0023] like Figure 2-3 As shown, the inner walls of the first baffle 200 and the second baffle 300 are slidably connected with fixing blocks 411. The surface of one fixing block 411 is engaged with the inner wall of the first baffle 407. The surface of the movable seat 100 is fixedly connected with blocks 412 around its perimeter. The surface of the other fixing block 411 is engaged with the inner wall of the second baffle 408. The top of the locking block 401 is fixedly connected with two fixing pads 405. The ends of the fixing pads 405 contact the top of the positioning block 403. One side of the locking block 401 is fixedly connected with two springs 404. The other end of the springs 404 is fixedly connected to the upper end of the inner wall of the first baffle 407. The top of the resistance block 402 is fixedly connected with a limiting rope 406. The other end of the limiting rope 406 is fixedly connected to the top of the first baffle 407.
[0024] The resistance block 402, positioning block 403, fixing pad 405 and fixing block 411 are all rubber components, which have the advantages of high elasticity and high coefficient of friction.
[0025] In this embodiment, one side fixing block 411 is inserted into the first baffle 200 and the first cover plate 407, so that the first cover plate 407 is locked into the first baffle 200, and the other side fixing block 411 is inserted into the second baffle 300 and the second cover plate 408, so that the second cover plate 408 is locked into the second baffle 300.
[0026] like Figure 3 As shown, the inner wall of the movable seat 100 is slidably connected to two sliders 413, the inner wall of the sliders 413 is hinged to a tie rod 409, and the inner wall of the movable seat 100 is provided with several limiting grooves 410, the surface of the sliders 413 is slidably connected to the inner wall of the limiting grooves 410.
[0027] Working principle: The two second stop frames 300 are sequentially pushed to rotate 90 degrees, and then the two first stop frames 200 are sequentially pushed to rotate 90 degrees, causing the surfaces of the second stop frames 300 and 200 to abut against the surface of the stop block 412. After pulling the first cover plate 407 and the second cover plate 408 upwards to a suitable height, one side of the fixing block 411 is engaged within the first stop frame 200 and the first cover plate 407, locking the first cover plate 407 within the first stop frame 200. The other side of the fixing block 411 is engaged within the second stop frame 300 and the second cover plate 408, locking the second cover plate 408 within the second stop frame 300. The elastic force of the spring 404 pushes the locking block 401 to move and lock it inside the second cover plate 408, pulling the two fixing pads 405 to flip them over, causing the resistance block 402 to slide into the first cover plate 407, so that one side of the resistance block 402 abuts against one side of the locking block 401. The positioning block 403 is locked in the locking block 401 and the first cover plate 407 in sequence, loosening the restriction on the fixing pad 405. The elastic force of the fixing pad 405 returns to its original position and abuts against the top of the positioning block 403, so that the first cover plate 407 is locked on the second cover plate 408. The other first cover plate 407 is locked on the second cover plate 408 in the same way, so that the portable case can be stably unfolded.
[0028] It should be noted that the movable seat 100, the first stop frame 200, the second stop frame 300, the first cover plate 407, the second cover plate 408, the spring 404, the slider 413, and the pull bracket 409 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.
[0029] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, 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. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A foldable and portable case for a Rockwell hardness tester, characterized in that, include: The movable seat (100) has a first stop frame (200) and a second stop frame (300) hinged to its inner wall. It also includes an anti-loosening mechanism (400), which includes a first cover plate (407) slidably connected to the inner wall of the first stop frame (200), a second cover plate (408) slidably connected to the inner wall of the second stop frame (300), a locking block (401) and a resistance block (402) slidably connected to both sides of the inner wall of the first cover plate (407), the surface of the locking block (401) being engaged with the inner wall of the second cover plate (408), and a positioning block (403) being fixedly connected to the top of the resistance block (402), the surface of the positioning block (403) being engaged with the locking block (401) and the inner wall of the first cover plate (407) in sequence.
2. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, The inner walls of the first baffle (200) and the second baffle (300) are slidably connected with fixing blocks (411), wherein the surface of one side of the fixing block (411) is engaged with the inner wall of the first baffle (407), and the surface of the fixing block (411) on the other side is engaged with the inner wall of the second baffle (408).
3. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, All four sides of the surface of the movable base (100) are fixedly connected with blocks (412).
4. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, The top of the card block (401) is fixedly connected with two fixing pads (405), and the ends of the fixing pads (405) contact the top of the positioning block (403).
5. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, The inner wall of the movable seat (100) is slidably connected to two sliders (413), and the inner wall of the sliders (413) is hinged to a tie rod (409).
6. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, Two springs (404) are fixedly connected to one side of the card block (401), and the other end of the springs (404) is fixedly connected to the upper end of the inner wall of the first cover plate (407).
7. The foldable Rockwell hardness tester portable case according to claim 5, characterized in that, The inner wall of the movable seat (100) is provided with a plurality of limiting grooves (410), and the surface of the slider (413) is slidably connected to the inner wall of the limiting grooves (410).
8. The foldable Rockwell hardness tester portable case according to claim 1, characterized in that, The top of the resistance block (402) is fixedly connected to a limiting rope (406), and the other end of the limiting rope (406) is fixedly connected to the top of the first baffle (407).