Test tube clamp
By introducing a U-shaped metal part and a top block structure into the test tube clamp, combined with a rubber layer, the problem of unstable holding of existing test tube clamps is solved, and stable holding is achieved during heating and oscillation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG INST FOR PROD QUALITY INSPECTION
- Filing Date
- 2025-05-23
- Publication Date
- 2026-04-24
AI Technical Summary
Existing test tube clamps have unstable clamping force when holding test tubes, and are prone to loosening when the test tubes are heated and shaken.
Clamping block one and clamping block two are hinged by torsion springs. Clamping block one is equipped with a U-shaped metal part and a top block. The top block can be pushed upward and embedded in the slot. Combined with the rubber layer, the clamping stability is improved.
It improves the stability of test tube clamping, prevents loosening, and is easy to operate.
Smart Images

Figure CN224156897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of test tube clamp technology, and more specifically, to a test tube clamp. Background Technology
[0002] A test tube clamp is a tool for holding test tubes. It is inserted from the bottom of the test tube and clamped at one-third or the upper middle part of the test tube from the mouth. After clamping, immediately place your hand on the long handle, and do not press your thumb on the short handle. When removing it, remove it from the bottom, and never touch the mouth of the tube. When heating the test tube, you need to shake the test tube continuously to ensure that it is heated evenly.
[0003] Currently, existing test tube clamps rely on the elastic torque of torsion springs to hold test tubes, resulting in unstable clamping force. When heating and continuously agitating the test tube, the test tube may loosen. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a test tube clamp that solves the problem that the existing test tube clamp relies on the elastic torque of a torsion spring to clamp the test tube, which results in unstable clamping force and makes the test tube prone to loosening when heated and continuously shaken.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A test tube clamp includes a clamping block one, a clamping block two, and a torsion spring. The clamping block one and the clamping block two are hinged together by the torsion spring. One end of the clamping block one and the clamping block two are provided with a clamping opening, and the other end of the clamping block one is provided with a gripping area.
[0009] A U-shaped metal part is connected through and fixedly connected to the clamping block. A top block is connected through and movably connected to the U-shaped metal part. A slot is opened on one side of the top block. A spring piece is fixedly connected to one side of the U-shaped metal part. An inclined end block is fixedly connected to one end of the spring piece. One end of the inclined end block passes through the U-shaped metal part and fits into the slot.
[0010] Furthermore, a rubber layer is fixedly connected inside the clamp.
[0011] Furthermore, the end of the top block near the clamping block two is arc-shaped.
[0012] 3. Beneficial effects
[0013] Compared with existing technologies, the advantages of this utility model are:
[0014] (1) The test tube clamping assembly consisting of clamping block one, clamping block two and torsion spring in this scheme, after clamping the test tube, pushes the top block upward and keeps it stable. Due to the limitation of the top block, the end of the test tube clamped by clamping block one and clamping block two will not be separated, thus tightly clamping the test tube and effectively improving the stability when clamping the test tube.
[0015] (2) When the top block is pushed upward, one end of the inclined end block can automatically embed into the slot on one side of the top block, which is convenient for personnel to operate and use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall open state of this utility model;
[0018] Figure 3 This is a cross-sectional structural diagram of the U-shaped metal part of this utility model.
[0019] Explanation of the labels in the diagram:
[0020] 1. Clamping block one; 101. Clamping opening; 1011. Rubber layer; 102. Grip area; 2. Clamping block two; 3. Torsion spring; 4. U-shaped metal part; 5. Top block; 501. Groove; 6. Spring piece; 7. Inclined end locking block. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] Example
[0023] like Figure 1-3 As shown, a test tube clamp includes a clamping block 1, a clamping block 2 and a torsion spring 3. The clamping block 1 and the clamping block 2 are hinged together by the torsion spring 3. One end of the clamping block 1 and the clamping block 2 are provided with a clamping opening 101, and the other end of the clamping block 1 is provided with a gripping area 102.
[0024] A U-shaped metal part 4 is connected through and fixedly connected to the clamping block 1. A top block 5 is connected through and movably connected to the U-shaped metal part 4. A slot 501 is opened on one side of the top block 5. A spring piece 6 is fixedly connected to one side of the U-shaped metal part 4. An inclined end block 7 is fixedly connected to one end of the spring piece 6. One end of the inclined end block 7 passes through the U-shaped metal part 4 and fits into the slot 501.
[0025] When in use, the test tube clamp consisting of clamp 1, clamp 2 and torsion spring 3 clamps the test tube and pushes the top block 5 upward to keep it stable. Due to the limiting position of the top block 5, the end of clamp 1 and clamp 2 that clamps the test tube cannot be separated, thus tightly clamping the test tube and effectively improving the stability when clamping the test tube.
[0026] When the top block 5 is pushed upward, one end of the inclined end block 7 can automatically insert into the slot 501 on one side of the top block 5, making it convenient for personnel to operate and use.
[0027] like Figure 1-2 A rubber layer 1011 is fixedly connected inside the clamp 101.
[0028] When in use, the rubber layer 1011 can effectively improve the stability of clamping the test tube.
[0029] like Figure 1 As shown, the end of the top block 5 near the clamping block 2 is arc-shaped.
[0030] When in use, the upper edge of the top block 5 can be lowered, thereby reducing the wear on the clamping block 2.
[0031] In summary, the specific working process of this solution is as follows: After clamping the test tube, the test tube clamp consisting of clamping block 1, clamping block 2, and torsion spring 3 pushes the top block 5 upward and keeps it stable. Due to the limiting position of the top block 5, the end of clamping block 1 and clamping block 2 that clamps the test tube cannot be separated, thus tightly clamping the test tube and effectively improving the stability when clamping the test tube.
[0032] When the top block 5 is pushed upward, one end of the inclined end block 7 can automatically insert into the slot 501 on one side of the top block 5, making it convenient for personnel to operate and use.
[0033] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A test tube clamp, comprising clamping block one (1), clamping block two (2), and torsion spring (3), characterized in that: The clamping block one (1) and the clamping block two (2) are hinged together by a torsion spring (3). One end of the clamping block one (1) and the clamping block two (2) are provided with a clamping opening (101), and the other end of the clamping block one (1) is provided with a gripping area (102). A U-shaped metal part (4) is connected through and fixedly connected to the clamping block (1). A top block (5) is connected through and movably connected to the U-shaped metal part (4). A slot (501) is opened on one side of the top block (5). A spring piece (6) is fixedly connected to one side of the U-shaped metal part (4). An inclined end block (7) is fixedly connected to one end of the spring piece (6). One end of the inclined end block (7) passes through the U-shaped metal part (4) and fits into the slot (501).
2. The test tube clamp according to claim 1, characterized in that: A rubber layer (1011) is fixedly connected inside the clamp (101).
3. A test tube clamp according to claim 1, characterized in that: The top block (5) is arc-shaped at one end near the clamping block (2).