Tweezers for transverse clamping

Abstract

The utility model provides a pair of tweezers for transverse clamping. The tweezers comprise two tweezers rods, slideways are formed in the two forceps rods in the length direction, and thin pressing rods are connected into the slideways of the two forceps rods in a sliding mode; the forceps further comprise limiting mechanisms, and the limiting mechanisms are installed on the forceps rods so as to provide pressing limiting after the thin pressing rods are adjusted in a sliding mode. Through the design of the inverted triangular platforms at the bottom ends of the forceps rods, during clamping, the tops of the corresponding inverted triangular platforms on the two forceps rods provide planes for placing the bottom surface of a sheet-shaped sample, so that the sheet-shaped sample is transversely and horizontally clamped and placed, and the problems that the traditional forceps apply clamping force to the edge of the sheet-shaped sample, so that the stress area is small, and the clamping effect is poor are avoided. And horizontal clamping is not easy to maintain. Furthermore, a slidable thin pressing rod is arranged, after the sheet-shaped sample is clamped, the thin pressing rod slides downwards, the bottom end of the thin pressing rod is pressed to the top face of the sheet-shaped sample, fixing and limiting are provided, and the limiting effect on the sheet-shaped sample is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of laboratory auxiliary tools, and particularly relates to a pair of tweezers for horizontal clamping. Background Art

[0002] In a laboratory, tweezers are commonly used to pick up bulk drugs, metal particles, hair, fine thorns, etc., and to hold wires, components, and integrated circuit pins during surgery; sometimes it is also necessary to put samples into or take them out of high-temperature or low-temperature environments through tweezers to prevent harm caused by direct contact of personnel with their bodies.

[0003] As described above, when the existing tweezers in the prior art pick up or place some sheet-shaped samples, because the sample thickness is relatively thin and the stress area is small, and the tweezers cannot ensure horizontal picking up of the sample, the sample is extremely likely to break away or cannot be ensured to be horizontal; it is very unreliable when picking up and placing some samples with horizontal requirements. Summary of the Utility Model

[0004] The utility model provides a pair of tweezers for horizontal clamping to solve the technical problem of difficult horizontal clamping of samples laterally.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a pair of tweezers for horizontal clamping, including two tweezer rods; both of the tweezer rods are provided with sliding channels along the length direction, and thin pressing rods are slidably connected in the sliding channels of both tweezer rods; further included is a limiting mechanism, which is installed on the tweezer rods to provide pressing and limiting after the sliding adjustment of the thin pressing rods.

[0007] In this technical solution, through the sliding design of the thin pressing rod, after the horizontal lateral clamping of the sheet-shaped sample, the thin pressing rod presses the top surface of the sheet-shaped sample to achieve a fixing effect.

[0008] Preferably, a plurality of equally spaced inverted triangular platforms are provided at the bottom ends of both tweezer rods, and the interval between two adjacent inverted triangular platforms is 5 mm; the sliding channels extend through all the inverted triangular platforms.

[0009] In this technical solution, the inverted triangular platforms are used for sample clamping, and their top surfaces provide a flat surface for placing the sheet-shaped sample.

[0010] Preferably, two limiting sleeves are fixedly installed inside the sliding channels, one of the limiting sleeves is located in the middle of the tweezer rod; the other limiting sleeve is located at the top of the uppermost inverted triangular platform and is spaced 5 mm apart.

[0011] In this technical solution, the limiting sleeves provide guiding and limiting functions for the thin pressing rods.

[0012] Preferably, an opening is provided in a part of the slideway located at the bottom end of the forceps rod.

[0013] In this technical solution, through the design of the bottom opening, it is used for the thin pressure rod to pass through from the bottom end of the slideway.

[0014] Preferably, the thin pressure rod passes through the two limiting sleeves, and the thin pressure rod is connected in cooperation with the inner wall of the limiting sleeve; a counterweight cap is sleeved on the top end of the thin pressure rod.

[0015] In this technical solution, the counterweight cap provides counterweight for the thin pressure rod, and the thin pressure rod automatically falls by gravity.

[0016] Preferably, a first mounting hole is provided on the counterweight cap, a first screw is threadedly connected to the first mounting hole, and one end of the first screw is inserted into a jack provided on the thin pressure rod.

[0017] In this technical solution, the first screw provides installation for the counterweight cap.

[0018] Preferably, a conical pressing block is fixedly installed at the bottom end of the thin pressure rod.

[0019] In this technical solution, the bottom surface of the sheet specimen is placed on the top surface of the inverted triangular platform, and the conical pressing block is used to press on the top surface of the sheet specimen.

[0020] Preferably, the limiting mechanism includes a rubber ring sleeved on the middle part of the forceps rod, the limiting sleeve in the middle part of the forceps rod is located inside the rubber ring, and a pressing protrusion is fixedly installed on the rubber ring.

[0021] Preferably, the pressing protrusion is aligned with the slideway; the pressing protrusion is located below the limiting sleeve in the middle part of the forceps rod.

[0022] In this technical solution, by pressing on the pressing protrusion, the pressing protrusion enters the slideway and is used to press the thin pressure rod to provide friction for limiting.

[0023] Preferably, a second mounting hole is provided on the pressing protrusion, and a second screw is threadedly connected to the second mounting hole.

[0024] In this technical solution, the second screw provided in the pressing protrusion, by screwing the second screw, makes the second screw extend from the second mounting hole, and can continuously press on the thin pressure rod.

[0025] On the basis of conforming to the common knowledge in the art, the above preferred conditions can be combined arbitrarily to obtain various preferred examples of the present utility model.

[0026] The positive and progressive effects of the present utility model are as follows:

[0027] A pair of tweezers for lateral clamping proposed above, through the design of the inverted triangular platform at the bottom end of the tweezer rod, when clamping, the tops of the corresponding inverted triangular platforms on the two tweezer rods provide a plane for placing the bottom surface of the sheet specimen, providing lateral horizontal clamping and placing for the sheet specimen, avoiding the problem that traditional tweezers apply clamping force to the edge of the sheet specimen, resulting in a small stress area and difficulty in maintaining horizontal clamping; further, it is provided with a slidable thin pressing rod. After clamping the sheet specimen, by sliding the thin pressing rod downward, the bottom end of the thin pressing rod presses against the top surface of the sheet specimen to provide fixed limiting, ensuring the limiting effect on the sheet specimen; in summary, the entire pair of tweezers can ensure that the sheet specimen is in a lateral horizontal state and provides clamping force for the top and bottom surfaces of the sheet specimen, different from applying clamping force at the edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the tweezer rod and the thin pressing rod of the present utility model in a disassembled and connected state.

[0029] Figure 2 For the present utility model Figure 1 FIG. 2 is an enlarged schematic diagram of part A in the present utility model.

[0030] Figure 3 FIG. 3 is a schematic diagram of the structure of the thin pressing rod and the counterweight cap of the present utility model.

[0031] Figure 4 FIG. 4 is a schematic diagram of the inside of the pressing protrusion and the structure of the pressing protrusion and the rubber ring of the present utility model.

[0032] DESCRIPTION OF THE REFERENCE NUMERALS

[0033] 1. Tweezer rod; 1-1. Slideway; 1-2. Limit sleeve; 1-3. Inverted triangular platform;

[0034] 2. Thin pressing rod; 2-1. Counterweight cap; 2-11. First mounting hole; 2-2. Conical pressing block; 2-3. First screw; 2-4. Insertion hole;

[0035] 3. Rubber ring; 3-1. Pressing protrusion; 3-11. Second mounting hole; 3-12. Second screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The present utility model will be further described below by way of examples, but the present utility model is not limited to the scope of the described examples.

[0037] As Figures 1-4 shown, a pair of tweezers for lateral clamping includes two tweezer rods 1; both of the two tweezer rods 1 are provided with slideways 1-1 along the length direction, and a thin pressing rod 2 is slidably connected in the slideways 1-1 of the two tweezer rods 1; further includes: a limiting mechanism, which is installed on the tweezer rod 1 to provide pressing limit after sliding adjustment of the thin pressing rod 2.

[0038] As shown Figure 1 in the figure, as a specific technical solution, a plurality of equidistantly distributed inverted triangular platforms 1-3 are provided at the bottom ends of the two tweezer rods 1, and the interval between two adjacent inverted triangular platforms 1-3 is 5 mm; the slideway 1-1 extends through all the inverted triangular platforms 1-3.

[0039] As shown Figures 1-2 in the figure, two limiting sleeves 1-2 are fixedly installed inside the slideway 1-1, one of the limiting sleeves 1-2 is located in the middle of the tweezer rod 1; the other limiting sleeve 1-2 is located at the top of the uppermost inverted triangular platform 1-3 and is separated by 5 mm.

[0040] As shown Figure 3 in the figure, the thin pressing rod 2 passes through the two limiting sleeves 1-2, and the thin pressing rod 2 is in fit connection with the inner wall of the limiting sleeve 1-2; a counterweight cap 2-1 is sleeved on the top end of the thin pressing rod 2.

[0041] A first mounting hole 2-11 is opened on the counterweight cap 2-1, a first screw 2-3 is threadedly connected to the first mounting hole 2-11, and one end of the first screw 2-3 is inserted into a jack 2-4 opened on the thin pressing rod 2.

[0042] A conical pressing block 2-2 is fixedly installed at the bottom end of the thin pressing rod 2.

[0043] As shown Figure 4 in the figure, the limiting mechanism includes a rubber ring 3 sleeved on the middle part of the tweezer rod 1, the limiting sleeve 1-2 in the middle of the tweezer rod 1 is located inside the rubber ring 3, and a pressing protrusion 3-1 is fixedly installed on the rubber ring 3.

[0044] The pressing protrusion 3-1 is aligned with the slideway 1-1; the pressing protrusion 3-1 is located below the limiting sleeve 1-2 in the middle of the tweezer rod 1.

[0045] When in use, invert the tweezers. Due to the gravity of the thin pressing rod 2 and the counterweight cap 2-1, the thin pressing rod 2 slides in the slideway 1-1 until the conical pressing block 2-2 contacts the limiting sleeve 1-2 close to the inverted triangular platform 1-3 for in-place blocking, and the thin pressing rod 2 and the conical pressing block 2-2 leave the slideway 1-1 at the position of the inverted triangular platform 1-3.

[0046] Then pinch the pressing protrusion 3-1 on the rubber ring 3 with fingertips. The pressing protrusion 3-1 presses on the thin pressing rod 2 to provide limitation for the thin pressing rod 2. The rubber ring 3 is made of rubber or silica gel and has elasticity. When pinching the pressing protrusion 3-1, the rubber ring 3 generates a certain elastic deformation to provide an elastic reset force for the subsequent operation.

[0047] Next, increase the pinching force to bring the two tweezers rods 1 closer. Use the inverted triangular platforms 1-3 on the two tweezers rods 1 to pick up the flake-shaped specimen. The top surface of the inverted triangular platform 1-3 provides a flat surface for the bottom surface of the flake-shaped specimen.

[0048] Separate the fingertips from the pressing protrusion 3-1, but maintain the pinching force of the two tweezers rods 1. The pressing protrusion 3-1 is reset by the elastic restoring force of the rubber ring 3. The pressing protrusion 3-1 separates from the thin pressing rod 2, and the thin pressing rod 2 loses the pressing limit. Due to the action of gravity, the conical pressing block 2-2 at the bottom end of the pressing rod presses on the top surface of the flake-shaped specimen. Then, press the fingertips on the pressing protrusion 3-1 again to provide a limit for the thin pressing rod 2 and maintain the contact state between the thin pressing rod 2 and the top surface of the flake-shaped specimen, ensuring the limiting effect on the flake-shaped specimen.

[0049] It should be noted that the two limiting sleeves 1-2 provide a limit for the thin pressing rod 2. When the conical pressing block 2-2 at the bottom end of the thin pressing rod 2 contacts the lower limiting sleeve 1-2, the thin pressing rod 2 and the conical pressing block 2-2 leave the slideway 1-1 where the inverted triangular platform 1-3 is set, while the counterweight cap 2-1 at the top end of the thin pressing rod 2 contacts the upper limiting sleeve 1-2, and the bottom end of the thin pressing rod 2 and the conical pressing block 2-2 move to the bottom opening of the slideway 1-1.

[0050] The thin pressing rod 2 is preferably a non-circular rod structure, and the inner ring of the limiting sleeve 1-2 is adapted to the thin pressing rod 2. With this cooperation, through the above design, the rotation of the two is avoided.

[0051] It should be noted that when the pressing protrusion 3-1 presses and limits the thin pressing rod 2, the applied pressure is less than the force that makes the two tweezers rods 1 approach each other. Therefore, after limiting the thin pressing rod 2, the tweezers rods 1 will not move.

[0052] As Figure 1 shown, the part of the slideway 1-1 located at the bottom end of the tweezers rod 1 is provided with an opening.

[0053] The setting of the opening is for the thin pressing rod 2 to enter from the bottom end.

[0054] As Figure 4 shown, a second mounting hole 3-11 is opened on the pressing protrusion 3-1, and a second screw 3-12 is threadedly connected to the second mounting hole 3-11.

[0055] If the entire forceps do not pick up sheet specimens for a long time, the position of the thin pressure rod 2 can be continuously restricted by tightening the second screw 3-12. Specifically, by inverting the entire forceps, due to gravity, the thin pressure rod 2 slides within the slideway 1-1, and the conical pressing block 2-2 contacts the limiting sleeve 1-2 near the inverted triangular platform 1-3. At this time, instead of squeezing the pressing protrusion 3-1, an external screwdriver is used to turn the second screw 3-12, causing the second screw 3-12 to threadedly rotate within the second mounting hole 3-11. The second screw 3-12 extends from the end of the second mounting hole 3-11 facing the slideway 1-1 and presses against the thin pressure rod 2 to provide limitation. The next time sheet specimens are picked up, the second screw 3-12 is loosened to restore the second screw 3-12 to the state as shown in Figure 4 shown.

[0056] It should be noted that the outer side of the second mounting hole 3-11 is a round hole, and the inner side is a threaded hole. The threaded hole is used for the threaded connection of the screw part on the second screw 3-12, and the round hole is used for the cooperation of the head of the second screw 3-12. When turning the second screw 3-12, the head of the second screw 3-12 slides within the round hole part, and the screw part threadedly rotates within the threaded hole. When tightened, the screw can extend.

[0057] The present utility model is not limited to the above embodiments. No matter what changes are made in its shape or structure, they all fall within the protection scope of the present utility model. The protection scope of the present utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims

1. A pair of transverse clamping tweezers, comprising two tweezer rods (1); characterized in that, Both of the two tweezer rods (1) are provided with sliding grooves (1-1) along the length direction, and a thin pressing rod (2) is slidably connected in the sliding grooves (1-1) of both of the two tweezer rods (1); It further includes: A limiting mechanism, which is installed on the tweezer rod (1) to provide pressing and limiting after the sliding adjustment of the thin pressing rod (2).

2. The forceps for lateral clamping according to claim 1, wherein: A plurality of equally spaced inverted triangular platforms (1-3) are provided at the bottom ends of both of the two tweezer rods (1), and the interval between two adjacent inverted triangular platforms (1-3) is 5 mm; the sliding groove (1-1) extends through all the inverted triangular platforms (1-3).

3. The forceps for lateral clamping according to claim 2, wherein: Two limiting sleeves (1-2) are fixedly installed inside the sliding groove (1-1), one of the limiting sleeves (1-2) is located in the middle of the tweezer rod (1); the other limiting sleeve (1-2) is located at the top of the uppermost inverted triangular platform (1-3) and is separated by 5 mm.

4. A pair of forceps for lateral clamping according to claim 1, characterized in that: The part of the sliding groove (1-1) located at the bottom end of the tweezer rod (1) is provided with an opening.

5. The forceps for lateral clamping according to claim 3, wherein: The thin pressing rod (2) passes through the two limiting sleeves (1-2), and the thin pressing rod (2) is in fit connection with the inner wall of the limiting sleeve (1-2); a counterweight cap (2-1) is sleeved on the top end of the thin pressing rod (2).

6. A pair of tweezers for lateral clamping according to claim 5, wherein: A first mounting hole (2-11) is opened on the counterweight cap (2-1), and a first screw (2-3) is threadedly connected to the first mounting hole (2-11), and one end of the first screw (2-3) is inserted into a jack (2-4) opened on the thin pressing rod (2).

7. A pair of tweezers for lateral clamping according to claim 1, characterized in that: A conical pressing block (2-2) is fixedly installed at the bottom end of the thin pressing rod (2).

8. The forceps for lateral clamping according to claim 3, wherein: The limiting mechanism includes a rubber ring (3) sleeved on the middle of the tweezer rod (1), and the limiting sleeve (1-2) in the middle of the tweezer rod (1) is located inside the rubber ring (3), and a pressing protrusion (3-1) is fixedly installed on the rubber ring (3).

9. The forceps for lateral clamping according to claim 8, wherein: The pressing protrusion (3-1) is aligned with the sliding groove (1-1); the pressing protrusion (3-1) is located below the limiting sleeve (1-2) in the middle of the tweezer rod (1).

10. A pair of tweezers for lateral clamping as claimed in claim 9, characterized in that: A second mounting hole (3-11) is opened on the pressing protrusion (3-1), and a second screw (3-12) is threadedly connected to the second mounting hole (3-11).

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