Special clamp device for experiment

Abstract

The utility model provides a special clamp device for experiments, which relates to the technical field of experimental equipment and comprises a fixed handle and a rotating handle, the rotating handle is rotatably arranged on the fixed handle and positioned on the lower side of the fixed handle, a connecting piece is fixedly arranged at the front end of the fixed handle, and a fixed clamping plate is fixedly arranged on the inner side of the lower end of the connecting piece. Two rotating plates are hinged to the two sides of the fixed handle respectively, a movable frame is hinged to the lower ends of the rotating plates, a movable clamping plate is fixedly arranged on the side, opposite to the fixed clamping plate, of the movable frame, the movable frame is located at the front end of the rotating handle, a protrusion is fixedly arranged on the rear side of the movable frame, and a tip part is arranged at the front end of the rotating handle. And the tip part is matched with the bulge and clings to the upper side of the bulge. According to the utility model, the accidental leakage of liquid or powdery substances in the clamping process is effectively prevented, the operation safety is improved, the device can be adapted to containers with different diameters, the operation process is simplified, the direct contact between a clamping part and a table top is avoided when the device is placed, and the cross contamination is prevented.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, specifically a special clamp device for experiments. Background Technology

[0002] In experimental fields such as chemistry, biology, and materials science, the clamping and transfer of experimental containers (such as test tubes, beakers, and centrifuge tubes) are high-frequency operations. The accuracy and safety of these operations directly affect experimental efficiency and the reliability of results. While traditional laboratory clamps can meet basic clamping needs, they are gradually revealing the following technical shortcomings when dealing with complex experimental scenarios:

[0003] Conventional clamps often use rigid clamps or single-material contact surfaces, which are insufficient for holding smooth-surface containers (such as glass test tubes), making them prone to slippage due to low friction coefficients. Increasing the clamping force to improve stability may damage thin-walled containers (such as plastic centrifuge tubes) due to stress concentration. Furthermore, fixed clamp spacing designs cannot accommodate containers of different diameters, requiring frequent clamp replacements and reducing experimental efficiency.

[0004] Existing clamps generally focus on the clamping function of the container's outer wall, lacking an active sealing design for the container opening. In experiments involving volatile liquids, toxic reagents, or powdered samples, the risk of leakage due to container tilting, vibration, or pressure changes during clamping is extremely high, threatening not only the safety of experimental personnel but also potentially causing cross-contamination or distorted experimental data. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a special clamp device for experiments, which aims to solve the technical problems of existing experimental clamps in terms of sealing, adaptability, operational safety and pollution control.

[0006] This utility model provides a special clamp device for experiments, characterized in that it includes a fixed handle and a rotating handle. The rotating handle is rotatably mounted on the fixed handle and located below the fixed handle. A connector is fixedly mounted on the front end of the fixed handle, and a fixed clamping plate is fixedly mounted on the inner side of the lower end of the connector. Two rotating plates are respectively hinged to both sides of the fixed handle, and a movable frame is hinged to the lower end of the rotating plates. A movable clamping plate is fixedly mounted on one side of the movable frame relative to the fixed clamping plate. The movable frame is located at the front end of the rotating handle, and a protrusion is fixedly mounted on the rear side of the movable frame. A pointed part is provided at the front end of the rotating handle, and the pointed part cooperates with the protrusion and is tightly attached to the upper side of the protrusion.

[0007] In a preferred embodiment, a pressure plate is fixedly mounted on the upper front side of the rotating handle, and a pressure groove is provided on the inner side of the pressure plate. The fixed handle and the rotating plate are located on the lower side inside the pressure groove. A pressure rod is fixedly mounted on the front end of the pressure plate and inside the pressure groove. A cover plate is slidably mounted on the front end of the fixed handle via a slide rod. A spring is provided between the upper end of the slide rod and the cover plate. The upper end of the slide rod corresponds to the position of the pressure rod. The cover plate corresponds to the area above the moving clamp and the fixed clamp.

[0008] In a preferred embodiment, rubber pads are fixedly provided on the inner sides of the movable clamping plate and the fixed clamping plate, and the inner side of the rubber pads is provided with anti-slip texture. The rubber pads are made of acid-resistant and high-temperature-resistant rubber material.

[0009] In a preferred embodiment, a sliding groove is provided at the front end of the fixed handle and on the outer side of the front end of the pressure plate. The connecting member is a bolt that passes through the interior of the sliding groove. A retaining plate is provided at the upper end of the connecting member and on the upper and lower sides of the fixed handle, respectively. The retaining plate is secured to the upper and lower sides of the sliding groove. The lower end of the connecting member is threaded to the fixed clamping plate.

[0010] In a preferred embodiment, a base plate is fixedly installed at the bottom of the movable support, and the base plate and the movable support are an integral structure.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. This utility model uses a rotating handle to drive the moving clamping plate to hold the container while the pressure plate and the linkage rod push the cover plate to close the container opening. With the help of the spring compression force control, the clamping force and sealing force are synchronized, which effectively prevents accidental leakage of liquid or powdery substances during the clamping process and improves operational safety.

[0013] 2. The rubber pads and anti-slip textures on the inner sides of the movable and fixed clamps significantly improve the clamping reliability of smooth or irregularly shaped containers (such as glass test tubes) through flexible contact and enhanced friction, avoiding the risk of container slippage.

[0014] 3. The fixed clamp is connected to the slide groove by bolts, and its position can be adjusted laterally to accommodate containers of different diameters (such as test tubes and beakers). Combined with the stroke design of the movable clamp, a single clamp can be used to accommodate containers of multiple sizes, reducing the cost of experimental equipment.

[0015] 4. The lever-type rotating handle drive structure allows the experimenter to complete the clamping, sealing and releasing actions with one hand, simplifying the operation process and improving experimental efficiency.

[0016] 5. The integrated design of the base plate and the mobile frame allows the device to stand independently on the experimental table, avoiding direct contact between the clamping parts and the table surface, preventing cross-contamination, and extending the service life of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the present invention.

[0020] In the diagram: 1-Fixed handle; 2-Rotating handle; 3-Connector; 4-Fixed clamping plate; 5-Rotating plate; 6-Moving frame; 7-Moving clamping plate; 8-Pressure plate; 9-Pressure rod; 10-Spring; 11-Slide rod; 12-Cover plate; 13-Rubber pad; 14-Anti-slip texture; 15-Slide groove; 16-Clamping plate; 21-Point; 61-Protrusion; 62-Base plate; 81-Pressure groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown

[0023] A special clamp device for experiments includes a fixed handle 1 and a rotating handle 2. The rotating handle 2 is rotatably mounted on the fixed handle 1 and located below the fixed handle 1. A connector 3 is fixedly mounted on the front end of the fixed handle 1. A fixed clamping plate 4 is fixedly mounted on the inner side of the lower end of the connector 3. Two rotating plates 5 are respectively hinged to both sides of the fixed handle 1. A movable frame 6 is hinged to the lower end of the rotating plate 5. A movable clamping plate 7 is fixedly mounted on one side of the movable frame 6 relative to the fixed clamping plate 1. The movable frame 6 is located at the front end of the rotating handle 2. A protrusion 61 is fixedly mounted on the rear side of the movable frame 6. A tip 21 is provided at the front end of the rotating handle 2. The tip 21 cooperates with the protrusion 61 and is tightly attached to the upper side of the protrusion 61.

[0024] A pressure plate 8 is fixedly installed on the upper front side of the rotating handle 2. A pressure groove 81 is provided on the inner side of the pressure plate 8. The fixed handle 1 and the rotating plate 5 are located on the lower side inside the pressure groove 81. A pressure rod 9 is fixedly installed on the front end of the pressure plate 5 and inside the pressure groove 81. A cover plate 12 is slidably installed on the front end of the fixed handle 1 via a slide rod 11. A spring 10 is provided between the upper end of the slide rod 11 and the cover plate 12. The upper end of the slide rod 11 corresponds to the position of the pressure rod 9. The cover plate 12 corresponds to the upper part between the movable clamping plate 7 and the fixed clamping plate 4.

[0025] Rubber pads 13 are fixedly installed on the inner sides of the movable clamping plate 7 and the fixed clamping plate 4 respectively, and anti-slip textures 14 are provided on the inner side of the rubber pads 13.

[0026] A groove 15 is provided at the front end of the fixed handle 1 and on the outer side of the front end of the pressure plate 8. The connector 3 is a bolt that passes through the interior of the groove 15. A retaining plate 16 is provided at the upper end of the connector 3 and on the upper and lower sides of the fixed handle 1, respectively. The retaining plate 16 is secured to the upper and lower sides of the groove 15. The lower end of the connector 3 is connected to the fixed clamping plate 1 by a thread.

[0027] The bottom of the movable support 6 is fixedly provided with a base plate 62, and the base plate 62 and the movable support 6 are an integral structure.

[0028] The operation process of this utility model is as follows:

[0029] Initial positioning

[0030] Holding the fixed handle 1, place the object to be clamped (such as a test tube or beaker) between the fixed clamp 4 and the movable clamp 7. Pay attention to the position of the container and ensure that its axis coincides with the center line of the clamp.

[0031] Clamping operation

[0032] Hold the fixed handle 1 with one hand and rotate the rotating handle 2 with your fingers. The tip 21 pushes the protrusion 61, causing the moving frame 6 to move. The moving clamp 7 gradually approaches the fixed clamp 4 until the rubber pad 13 is in close contact with the container surface. When rotating the rotating handle 2, the pressure plate 8 applies pressure to the cover plate 12 through the pressure rod 9, so that the cover plate 12 seals the opening at the top of the clamped object. The spring 10 is compressed to a predetermined value, and the clamping force is stabilized within the required range, so that the object inside the clamped object will not leak during the transfer of the clamped object.

[0033] Step 4: Release the object

[0034] Rotate the handle 2 in the opposite direction to the initial position, move the clamping plate 7 away from the fixed clamping plate 4, and the clamped object will fall off automatically under its own gravity.

[0035] This invention allows for adjustment of the fixed clamp 4 position. The position of the fixed clamp 4 can be adjusted by sliding the connecting piece 3 (bolt) along the slide groove 15 according to the size of the experimental container, thus accommodating containers of different sizes. Furthermore, after use, this invention can be directly placed on the experimental table via the base plate 62, preventing other components from contacting the experimental table.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special clamping device for experiments, characterized in that, The device includes a fixed handle (1) and a rotating handle (2). The rotating handle (2) is rotatably mounted on the fixed handle (1) and located below the fixed handle (1). A connector (3) is fixedly mounted on the front end of the fixed handle (1). A fixed clamping plate (4) is fixedly mounted on the inner side of the lower end of the connector (3). Two rotating plates (5) are hinged to both sides of the fixed handle (1). A movable frame (6) is hinged to the lower end of the rotating plate (5). A movable clamping plate (7) is fixedly mounted on one side of the movable frame (6) relative to the fixed clamping plate (4). The movable frame (6) is located at the front end of the rotating handle (2). A protrusion (61) is fixedly mounted on the rear side of the movable frame (6). A tip (21) is provided at the front end of the rotating handle (2). The tip (21) cooperates with the protrusion (61) and is tightly attached to the upper side of the protrusion (61).

2. The experimental clamp device according to claim 1, characterized in that, A pressure plate (8) is fixedly installed on the upper front side of the rotating handle (2). A pressure groove (81) is provided on the inner side of the pressure plate (8). The fixed handle (1) and the rotating plate (5) are located on the lower side inside the pressure groove (81). A pressure rod (9) is fixedly installed on the front end of the pressure plate (8) and inside the pressure groove (81). A cover plate (12) is provided on the front end of the fixed handle (1) through a sliding rod (11). A spring (10) is provided between the upper end of the sliding rod (11) and the cover plate (12). The upper end of the sliding rod (11) corresponds to the position of the pressure rod (9). The cover plate (12) corresponds to the upper part between the moving clamp (7) and the fixed clamp (4).

3. The experimental clamp device according to claim 1, characterized in that, The inner sides of the movable clamping plate (7) and the fixed clamping plate (4) are respectively fixed with rubber pads (13), and the inner side of the rubber pads (13) is provided with anti-slip textures (14).

4. The experimental clamp device according to claim 2, characterized in that, The front end of the fixed handle (1) and the outer side of the front end of the pressure plate (8) are provided with a slide groove (15). The connector (3) is a bolt. The connector (3) passes through the interior of the slide groove (15). The upper end of the connector (3) and the upper and lower sides of the fixed handle (1) are respectively provided with a clamping plate (16). The clamping plate (16) is clamped on the upper and lower sides of the slide groove (15). The lower end of the connector (3) is connected to the fixed clamping plate (4) by a thread.

5. The experimental clamp device according to claim 1, characterized in that, The bottom of the movable frame (6) is fixedly provided with a base plate (62), and the base plate (62) and the movable frame (6) are an integral structure.

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