A self-compensating silicone sleeve for a laboratory hand-held clamp

Abstract

The utility model discloses a kind of self-compensating silica gel sleeve on laboratory handheld clamp, it is related to utensil clamping technology field using clamp. Including silica gel sleeve and antiskid silica gel plate, the sleeve space of clamping space that is extended along self axial is formed in silica gel sleeve, the chuck of handheld clamp can be inserted, stuff in clamping space, antiskid silica gel plate includes antiskid plate body, contact layer and filling interlayer, inner cavity is formed in antiskid plate body, contact layer is made of array distribution hemispherical antiskid particle, contact layer is set in the side of antiskid plate body away from silica gel sleeve, filling interlayer is made of several different particle size silica gel particles, filling interlayer is filled in the inner cavity of antiskid plate body, when using the handheld clamp clamping utensil that is sleeved with self-compensating silica gel sleeve, its contact layer is extruded, simultaneously, silica gel particle dynamically flows in the inner cavity of antiskid plate body. The utility model can improve the stability of handheld clamp clamping utensil, reduce the breakage rate of clamping utensil.

Description

Technical Field

[0001] This utility model relates to the field of clamping containers using clamps, specifically a self-compensating silicone sleeve for use on laboratory hand clamps. Background Technology

[0002] Currently, when using handheld clamps to hold beakers and other vessels, researchers often use traditional beaker clamps for convenience. However, since the clamping end of the beaker clamp directly contacts the surface of the vessel, it is easy to scratch the surface. Furthermore, traditional beaker clamps cannot be adapted to beakers of different diameters, or the size and shape of the beakers are limited, which can easily lead to unstable clamping or insufficient clamping force, causing the glassware to slip off.

[0003] To avoid damaging the surface of beakers and other vessels, some clamps are fitted with rubber sleeves on the clamps. However, the rubber sleeves have poor temperature resistance (<150℃), and the clamping force on the vessels is significantly weakened in higher heating experimental environments (>200℃). This still cannot solve the problem of unstable clamping or insufficient clamping force causing the glassware to slip off. Utility Model Content

[0004] The purpose of this invention is to provide a self-compensating silicone sleeve for laboratory handheld clamps to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-compensating silicone sleeve for a laboratory handheld clamp, comprising a silicone sleeve and an anti-slip silicone plate, wherein a clamping space extending along its own axis is formed inside the silicone sleeve, and the clamp of the handheld clamp can be inserted into and filled into the clamping space so that the silicone sleeve is connected to the clamp of the handheld clamp, and the anti-slip silicone plate is fixed to the outer surface of the silicone sleeve, the anti-slip silicone plate comprising an anti-slip plate body, a contact layer and a filling layer, wherein an inner cavity is formed in the anti-slip plate body, the contact layer is composed of an array of hemispherical anti-slip particles, the contact layer is disposed on the side of the anti-slip plate body away from the silicone sleeve, and the filling layer is composed of several silicone particles of different sizes, the filling layer is filled into the inner cavity of the anti-slip plate body, when a handheld clamp with a self-compensating silicone sleeve is used to hold a vessel, its contact layer is compressed, and at the same time, the silicone particles flow dynamically in the inner cavity of the anti-slip plate body.

[0006] Based on the above technical features, when clamping glassware of different sizes (5ml to 100ml) and different appearances (round head, flat head, square head, etc.), the contact layer is compressed, and the silicone particles can flow dynamically in the inner cavity, so that the surface of the contact layer can be adjusted according to the appearance of the glassware. Through deformation, the clamping stress generated by the clamp on the glassware is self-compensated and balanced. At the same time, the silicone sleeve made of silicone can clamp beakers and other glassware in a heating test environment of 300℃, ultimately improving the stability of the clamped glassware and reducing the breakage rate of the clamped glassware.

[0007] Preferably, in this technical solution, the inner cavity is a wave-shaped cavity; the inner surface of the anti-slip plate body parallel to the contact layer is wave-shaped, and the distance between two adjacent wave peaks is 2.9mm to 3.1mm, and the depth of the wave trough is 0.8mm. More preferably, the particle size of the silicone particles in the filling interlayer is 0.5mm to 2.0mm.

[0008] Based on the above technical features, shear-thinned silicone particles are filled into a corrugated cavity, and the corrugated cavity and silicone particles form a composite contact surface. When under pressure, the silicone particles flow towards the troughs, and the contact area is greatly increased to approximately 30%-80%, reducing stress concentration in the silicone particles.

[0009] Preferably, in this technical solution, the radius of the hemispherical anti-slip particles is 1.4mm to 1.6mm, and the distance between two adjacent hemispherical anti-slip particles is 2.9mm to 3.1mm.

[0010] Based on the above technical features, the surface of the self-compensating silicone sleeve is made of arrayed hemispherical anti-slip particles, which improves the friction performance and ensures the stability of the clamp when holding glassware.

[0011] Preferably, in this technical solution, a dovetail protrusion is provided along the axial direction of the silicone sleeve and within the jacket space; the dovetail protrusion can be inserted into the dovetail groove of the chuck and cooperate to form a limiting mechanism.

[0012] Based on the above technical features, the elastic silicone sleeve made of silicone can be adapted to any flat or curved clamp without the need for slotting or threading. The dovetail protrusion of the clamp space and the dovetail groove of the clamp are combined to achieve self-locking fixation of the silicone sleeve and the clamp.

[0013] Preferably, in this technical solution, the silicone sleeve has a square tube structure, the clamping space is rectangular and matches the cross-sectional shape of the clamp; the dovetail protrusion includes two protrusions, and the two dovetail protrusions are disposed on the same side of the clamping space. More preferably, the height of the dovetail protrusion is 1.95mm to 2.05mm, and the base angle of the dovetail protrusion is 59.5° to 60.5°.

[0014] Preferably, in this technical solution, the inner surface of the silicone sleeve is provided with a V-shaped anti-slip groove, which is used to increase the friction between the silicone sleeve and the clamp; the depth of the V-shaped anti-slip groove is 0.28mm to 0.32mm. More preferably, the inner surface of the silicone sleeve in contact with the clamp is provided with a friction layer, the thickness of which is 0.95mm to 1.05mm.

[0015] Based on the above technical features, a friction layer is provided on the inner surface of the silicone sleeve that contacts the chuck, and a longitudinal V-shaped anti-slip groove is used on the inner surface to provide high friction and ensure stable engagement with the chuck.

[0016] In this technical solution, the silicone sleeve and the anti-slip silicone plate are preferably integrally formed. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the self-compensating silicone sleeve in an embodiment of the present invention;

[0018] Figure 2 This is a front view of the self-compensating silicone sleeve in an embodiment of this utility model;

[0019] Figure 3 This is a cross-sectional view of the anti-slip silicone sheet in an embodiment of this utility model;

[0020] Figure 4 This is a cross-sectional view of the silicone sleeve in an embodiment of this utility model;

[0021] Figure 5 This is a distribution diagram of the silica gel particles in an embodiment of this utility model.

[0022] In the diagram: 1. Silicone sleeve; 2. Anti-slip silicone sheet; 21. Anti-slip plate body; 22. Contact layer; 23. Filler interlayer; 3. Hemispherical anti-slip particles; 4. Silicone particles; 41. First particle group; 42. Second particle group; 43. Third particle group; 5. Wavy cavity; 6. Dovetail protrusion; 7. V-shaped anti-slip groove. Detailed Implementation

[0023] 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.

[0024] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0027] like Figures 1 to 5 As shown, this utility model relates to an improvement in the contact surface structure of laboratory handheld clamps (test tube clamps, beaker clamps), specifically providing the following technical solution: a self-compensating silicone sleeve for laboratory handheld clamps, comprising a silicone sleeve tube 1 and an anti-slip silicone plate 2. The self-compensating silicone sleeve is suitable for stable clamping and preventing slippage of 5ml-100ml beakers and other vessels, and is suitable for high-temperature and acid / alkali experimental environments. It is also suitable for scenarios requiring dynamic adaptation to irregularly shaped vessels (such as conical flasks and centrifuge tubes).

[0028] Specifically, such as Figure 1 and Figure 2 As shown, a clamping space extending along its own axis is formed within the silicone sleeve 1. The clamp of the handheld gripper can be inserted into and filled within the clamping space, so that the silicone sleeve 1 is connected to the clamp of the handheld gripper. When the self-compensating silicone sleeve needs repair or replacement, the silicone sleeve 1 can be directly pulled out from the handheld gripper and then the damaged self-compensating silicone sleeve can be replaced. This effectively avoids the need for an integrated connection between the silicone sleeve and the clamping device, which would require replacing the entire clamping device and silicone sleeve, or using modular prefabricated parts, resulting in higher repair and replacement costs.

[0029] like Figure 1 and Figure 3As shown, the anti-slip silicone plate 2 is fixed to the outer surface of the silicone sleeve 1. The anti-slip silicone plate 2 includes an anti-slip plate body 21, a contact layer 22, and a filling layer 23. The anti-slip plate body 21 has an inner cavity. The contact layer 22 is composed of arrayed hemispherical anti-slip particles 3, and is located on the side of the anti-slip plate body 21 away from the silicone sleeve 1. The filling layer 23 is composed of several silicone particles 4 of different sizes, and is filled into the inner cavity of the anti-slip plate body 21. When a handheld gripper with a self-compensating silicone sleeve is used to hold a container, the contact layer 22 is compressed, and simultaneously, the silicone particles 4 dynamically flow within the inner cavity of the anti-slip plate body 21. Preferably, the silicone sleeve 1 and the anti-slip silicone plate 2 are integrally formed.

[0030] The self-compensating silicone sleeve of this invention has strong versatility, capable of clamping glassware of different sizes (5ml to 100ml) and different appearances (round head, flat head, square head, etc.). Furthermore, it possesses high temperature resistance; the silicone sleeve made of silicone can clamp beakers and other glassware in heating experiments at 300℃. Simultaneously, when clamping glassware of different sizes and appearances, the contact layer 22 is compressed, and the silicone particles 4 can dynamically flow within the inner cavity, allowing the surface of the contact layer 22 to adjust according to the appearance of the glassware. Through deformation, the clamping stress on the glassware is automatically compensated and balanced, ultimately improving the stability of the clamped glassware and reducing its breakage rate.

[0031] Furthermore, the anti-slip silicone plate 2 has a square plate structure with a cross-sectional dimension of 100mm*10mm (i.e., as shown in the image). Figure 3 (As shown in the cross-sectional view), the inner cavity of the anti-slip plate body 21 is a wave-shaped cavity 5, as shown in the cross-sectional view. Figure 1 and Figure 3 As shown, the inner surface of the anti-slip plate body 21, parallel to the contact layer 22, is wavy, and the distance between two adjacent peaks is 2.9mm to 3.1mm, specifically 2.9mm, 3.0mm, 3.1mm, or any value between adjacent values, with a trough depth of approximately 0.8mm. Shear-thinned silicone particles 4 are filled within the wavy cavity 5, forming a composite contact surface with the wavy cavity 5. When under pressure, the silicone particles 4 flow towards the troughs, significantly increasing the contact area to approximately 30%-80%, effectively reducing stress concentration on the silicone particles 4.

[0032] The silica gel particles 4 in the filling layer 23 have a particle size of 0.5 mm to 2.0 mm, and the overall filling density of the silica gel particles 4 is 78% to 82%. Specifically, as follows... Figure 5As shown, the silicone particles 4 can be divided into a first particle group 41, a second particle group 42, and a third particle group 43. The first particle group 41 consists of particles with a diameter of 0.5 mm to 1.0 mm, accounting for approximately 30%. The second particle group 42 consists of particles with a diameter of 1.0 mm to 1.5 mm, accounting for approximately 50%. The third particle group 43 consists of particles with a diameter of 1.5 mm to 2.0 mm, accounting for approximately 20%.

[0033] The contact layer 22 is formed as a high-temperature resistant protective layer. Preferably, in this invention, it can be made of A50 phenyl silicone (phenyl content of about 13%). The phenyl silicone layer contains 15% fumed silica, which can withstand high temperatures of 300℃, with a Shore hardness decay of less than 5%, tensile strength ≥8MPa, and extended service life. Experiments have shown that the self-compensating silicone sleeve of this invention can still hold beakers and other vessels under a 300℃ heating test environment. The radius of the hemispherical anti-slip particles 3 is 1.4mm to 1.6mm, specifically 1.4mm, 1.5mm, 1.6mm, or any value between adjacent values. The distance between two adjacent hemispherical anti-slip particles 3 is 2.9mm to 3.1mm, specifically 2.9mm, 3.0mm, 3.1mm, or any value between adjacent values. The surface of the self-compensating silicone sleeve uses an array of hemispherical anti-slip particles 3, which improves friction performance and ensures the stability of the clamp when holding glassware.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, a dovetail protrusion 6 is provided along the axial direction of the silicone sleeve 1 and within the jacket space. The dovetail protrusion 6 can be inserted into the dovetail groove of the chuck and cooperate to form a self-locking limiting mechanism. Of course, in other embodiments, an inverted triangular protrusion can also be provided within the jacket space, and a triangular groove adapted to the inverted triangular protrusion can be provided on the chuck.

[0035] Furthermore, the silicone sleeve 1 has a square tube structure with a cross-sectional dimension of 20mm*10mm (i.e., as shown in the image). Figure 4(See the cross-sectional view shown). The clamping space is rectangular (20mm*7mm) and matches the cross-sectional shape of the chuck. Two dovetail protrusions 6 are located on the same side of the clamping space. The height of the dovetail protrusions 6 is 1.95mm to 2.05mm, specifically 1.95mm, 2.00mm, 2.05mm, or any value between adjacent values. The base angle of the dovetail protrusions 6 is 59.5° to 60.5°, specifically 59.5mm, 60.0mm, 60.5mm, or any value between adjacent values. The elastic silicone sleeve 1, made of silicone, can fit any flat or curved chuck surface without the need for slotting or threaded holes. The dovetail protrusions 6 in the clamping space combine with the dovetail grooves in the chuck to achieve a self-locking fixation between the silicone sleeve 1 and the chuck.

[0036] At the same time, such as Figure 1 , Figure 2 and Figure 4 As shown, the inner surface of the silicone sleeve 1 is provided with a V-shaped anti-slip groove 7. The V-shaped anti-slip groove 7 is used to increase the friction between the silicone sleeve 1 and the chuck. The groove depth of the V-shaped anti-slip groove 7 is 0.28mm to 0.32mm, specifically 0.28mm, 0.29mm, 0.30mm, 0.31mm, 0.32mm, or any value between adjacent values. The inner surface of the silicone sleeve 1 in contact with the chuck is provided with a friction layer. The thickness of the friction layer is 0.95mm to 1.05mm, specifically 0.95mm, 1.00mm, 1.05mm, or any value between adjacent values. By providing a friction layer on the inner surface of the silicone sleeve 1 in contact with the chuck, and using a longitudinal V-shaped anti-slip groove 7 on the inner surface, high friction is provided to ensure stable engagement with the chuck.

[0037] Preferably, the friction layer can be made of Shore A30 silicone containing 5% silicon carbide microparticles (particle size 10μm±2μm), with a friction coefficient ≥0.8 and strong anti-slip ability.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-compensating silicone sleeve for use on a laboratory handheld clamp, characterized in that, The self-compensating silicone sleeve includes: Silicone sleeve (1), wherein a clamping space extending along its own axis is formed inside the silicone sleeve (1), and the clamp of the hand gripper can be inserted into and filled in the clamping space so that the silicone sleeve (1) is connected to the clamp of the hand gripper. Anti-slip silicone plate (2), the anti-slip silicone plate (2) is fixed to the outer surface of silicone sleeve (1), the anti-slip silicone plate (2) includes anti-slip plate body (21), contact layer (22) and filling interlayer (23), wherein the anti-slip plate body (21) has an inner cavity, the contact layer (22) is composed of arrayed hemispherical anti-slip particles (3), the contact layer (22) is disposed on the side of the anti-slip plate body (21) away from the silicone sleeve (1), the filling interlayer (23) is composed of several silicone particles (4) of different particle sizes, and the filling interlayer (23) is filled into the inner cavity of the anti-slip plate body (21); When a hand clamp fitted with a self-compensating silicone sleeve is used to hold a vessel, its contact layer (22) is compressed, and at the same time, the silicone particles (4) flow dynamically in the inner cavity of the anti-slip plate body (21).

2. The self-compensating silicone sleeve according to claim 1, characterized in that, The inner cavity is a wave-shaped cavity (5); The inner surface of the anti-slip plate body (21) parallel to the contact layer (22) is wavy, and the distance between two adjacent wave peaks is 2.9mm to 3.1mm, and the depth of the wave trough is 0.8mm.

3. The self-compensating silicone sleeve according to claim 2, characterized in that, The particle size of the silica gel particles (4) in the filling interlayer (23) is 0.5 mm to 2.0 mm.

4. The self-compensating silicone sleeve according to claim 1, characterized in that, The radius of the hemispherical anti-slip particles (3) is 1.4 mm to 1.6 mm, and the distance between two adjacent hemispherical anti-slip particles (3) is 2.9 mm to 3.1 mm.

5. The self-compensating silicone sleeve according to claim 1, characterized in that, Along the axial direction of the silicone sleeve (1), and within the jacket space, a dovetail protrusion (6) is provided; The dovetail protrusion (6) can be inserted into the dovetail groove provided in the chuck and cooperate to form a limiting mechanism.

6. The self-compensating silicone sleeve according to claim 5, characterized in that, The silicone sleeve (1) has a square tube structure, and the jacket space is rectangular and adapted to the cross-sectional shape of the clamp. The dovetail protrusion (6) includes two protrusions, and the two dovetail protrusions (6) are located on the same side of the jacket space.

7. The self-compensating silicone sleeve according to claim 6, characterized in that, The height of the dovetail protrusion (6) is 1.95mm to 2.05mm, and the bottom angle of the dovetail protrusion (6) is 59.5° to 60.5°.

8. The self-compensating silicone sleeve according to claim 1, characterized in that, The inner surface of the silicone sleeve (1) is provided with a V-shaped anti-slip groove (7), which is used to increase the friction between the silicone sleeve (1) and the clamp. The depth of the V-shaped anti-slip groove (7) is 0.28mm to 0.32mm.

9. The self-compensating silicone sleeve according to claim 8, characterized in that, A friction layer is provided on the inner surface of the silicone sleeve (1) that is in contact with the clamp, and the thickness of the friction layer is 0.95mm to 1.05mm.

10. The self-compensating silicone sleeve according to claim 1, characterized in that, The silicone sleeve (1) and the anti-slip silicone plate (2) are integrally formed.

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