A sampling tongs

By designing a sampling clamp that can be unlocked with one hand, and utilizing the linkage structure of the arc-shaped rod and the long rod, the problems of existing sampling clamps requiring two-hand operation and insufficient stability are solved, achieving the effect of fast unlocking and stable clamping.

CN224461732UActive Publication Date: 2026-07-07ZHEJIANG XINGHE MEDICAL EQUIPMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINGHE MEDICAL EQUIPMENT CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing sampling clamps require two hands to unlock, which affects the smoothness of operation. They are also prone to loosening when encountering shaking or external interference, affecting sampling accuracy and efficiency.

Method used

A sampling clamp was designed, comprising a clamp body, an arc-shaped rod, a long rod, and a locking mechanism. It can be unlocked by operating the arc-shaped rod with one hand. The linkage of the arc-shaped rod, the long rod, and other components enables the separation of the clamping block and the toothed block. The design of the return spring and the limit block ensures the clamping stability.

Benefits of technology

It enables quick unlocking with one hand, improving operational convenience and work efficiency, ensuring that the sample does not come loose under shaking or external interference, and improving sampling accuracy and integrity.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224461732U_ABST
    Figure CN224461732U_ABST
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Abstract

The utility model belongs to the technical field of medical apparatus and instruments, concretely relates to a sampling forceps, including the body one and the body two, the body one and the body two are connected through rivet, the body two is equipped with the slide groove and the through groove, sampling forceps are equipped with locking mechanism and unlocking mechanism, the unlocking mechanism includes arc -shaped link, arc -shaped link is hinged with the body two outer wall, and arc -shaped link end part is equipped with sliding slot, long rod one end fixedly connected with lug, and lug sets up in sliding slot. When this sampling forceps cancels the locking state of sampling forceps, medical staff only needs to use middle finger to exert pressure to arc -shaped link, through the linkage of arc -shaped link, long rod and other components, can easily push the clamping block and separate with the tooth block, realize one -hand unlocking, whole unlocking process operation is simple, convenient, need not complex operation step, greatly save the unlocking time, can effectively improve the work efficiency of medical staff, especially applicable to the emergency sampling or the working scene of continuous sampling.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a sampling forceps. Background Technology

[0002] Sampling forceps are instruments widely used in medical, industrial and other fields. They are mainly used to collect tissues, cells or other samples for laboratory testing, analysis or diagnosis.

[0003] Currently, in existing technologies, such as Chinese patent with publication number CN222265298U, a lockable live sampling forceps is disclosed. This device can keep the live sampling forceps in a clamped state by inserting a clamping plate and a rack, avoiding prolonged exertion by medical staff and improving the stability and efficiency of the operation. However, when releasing the locking state, the device has certain operational limitations. It cannot be released with one hand and requires medical staff to use their other hand to pull the lever, which disengages the clamping plate from the rack through a linkage structure. This process may affect the smoothness of operation to some extent. In view of this, we propose a sampling forceps. Utility Model Content

[0004] The main objective of this invention is to provide a sampling clamp that can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a sampling clamp, comprising a clamp body one and a clamp body two, which are connected by rivets. The clamp body two has a sliding groove and a through groove. The sampling clamp is provided with a locking mechanism and an unlocking mechanism, the unlocking mechanism comprising:

[0006] An arc-shaped rod is hinged to the outer wall of the clamp body, and a sliding groove is provided at the end of the arc-shaped rod;

[0007] A long rod, one end of which is fixedly connected to a protrusion and the protrusion is disposed in a sliding groove, and the other end of which is fixedly connected to a rod body and the rod body is slidably connected to the sliding groove.

[0008] Preferably, the locking mechanism includes an arc-shaped frame, which is connected to an outer wall of the clamp body, and the inner wall of the arc-shaped frame is provided with multiple sets of tooth blocks, both of which are designed with inclined surfaces.

[0009] Preferably, the inner wall of the through groove is connected to a housing, and a locking block is provided inside the housing. A return spring is connected to the end of the locking block, and the end of the return spring away from the locking block is connected to the inner wall of the housing.

[0010] Preferably, the card block has a slot, and the slot is slidably connected to the rod.

[0011] Preferably, an arc-shaped spring is provided between the outer walls of the first clamp body and the second clamp body.

[0012] Preferably, the long rod has a long groove in the middle section, and the long groove is slidably connected to a limit block to improve the stability of the long rod's movement. The limit block is connected to the outer wall of the clamp body.

[0013] Preferably, the housing is located inside the arc-shaped frame, and the center of the arc-shaped frame coincides with the midpoint of the rivet.

[0014] This invention provides a sampling clamp. It has the following beneficial effects:

[0015] (1) When the sampling forceps is released from its locked state, medical staff only need to apply pressure to the arc-shaped rod with their middle finger. Through the linkage of the arc-shaped rod, the long rod and other components, the locking block and the toothed block can be easily pushed apart, realizing one-handed unlocking. The whole unlocking process is simple and convenient to operate, without complicated operation steps, which greatly saves unlocking time and can effectively improve the work efficiency of medical staff. It is especially suitable for emergency sampling or continuous sampling work scenarios.

[0016] (2) The sampling clamp, through its locking mechanism design, ensures that the straight edges of the clamping block and the toothed block mutually limit each other after the sample is clamped, thus firmly maintaining the clamped state. During medical sampling and other operations, even if there is accidental shaking or external interference, it will not easily loosen, effectively preventing the sample from falling or shifting, ensuring the accuracy and integrity of the sampling, and providing reliable sample evidence for subsequent testing and diagnosis. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention;

[0021] Figure 4 This is a partial three-dimensional structural diagram of the present invention;

[0022] Figure 5 This utility model Figure 2Schematic diagram of structure A in the middle.

[0023] Explanation of icon numbers:

[0024] 1. Clamp body one; 2. Clamp body two; 20. Sliding groove; 21. Through groove; 22. Arc-shaped rod; 221. Sliding groove; 23. Long rod; 231. Long groove; 232. Protrusion; 24. Limiting block; 31. Arc-shaped frame; 32. Tooth block; 33. Housing; 34. Locking block; 341. Groove; 35. Rod body; 36. Return spring; 4. Rivet; 5. Arc-shaped spring.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 This utility model proposes a sampling clamp, including clamp body 1 and clamp body 2. An arc spring 5 is provided between the outer walls of clamp body 1 and clamp body 2. Clamp body 1 and clamp body 2 are connected by rivets 4. Clamp body 2 has a sliding groove 20 and a through groove 21. The sampling clamp is provided with a locking mechanism and an unlocking mechanism.

[0028] In an embodiment of this utility model, in order to keep the sampling forceps in a clamped state, the locking mechanism specifically includes an arc-shaped frame 31, which is connected to the outer wall of the forceps body 1. The inner wall of the arc-shaped frame 31 is provided with multiple sets of toothed blocks 32. The inner wall of the through groove 21 is connected to a housing 33, and a locking block 34 is provided inside the housing 33. The housing 33 is located inside the arc-shaped frame 31, and the center of the arc-shaped frame 31 coincides with the midpoint of the rivet 4. A return spring 36 is connected to the end of the locking block 34. The end of the return spring 36 away from the locking block 34 is connected to the inner wall of the housing 33. The locking block 34 has a slot 341, and the slot 341 is slidably connected to the rod body 35.

[0029] Furthermore, the unlocking mechanism includes an arc-shaped rod 22, which is hinged to the outer wall of the clamp body 2. The end of the arc-shaped rod 22 is provided with a sliding groove 221. One end of the long rod 23 is fixedly connected to a protrusion 232, which is located in the sliding groove 221. The other end of the long rod 23 is fixedly connected to a rod body 35, which is slidably connected to the sliding groove 20. The middle section of the long rod 23 is provided with a long groove 231, which is slidably connected to a limit block 24. The limit block 24 is connected to the outer wall of the clamp body 2.

[0030] In this invention, during use, medical personnel first insert their thumb and forefinger into the finger rings of the forceps body 1 and forceps body 2, respectively. By squeezing the forceps body 1 and forceps body 2 in opposite directions, the sampling forceps close to hold the sample. During this process, the arc-shaped frame 31 moves towards the through slot 21, and the toothed block 32 on the arc-shaped frame 31 squeezes the locking block 34, forcing the locking block 34 to retract towards the housing 33. At the same time, the spring 36 undergoes elastic deformation. Under the elastic force of the spring 36, the locking block 34 and the toothed block 32 maintain continuous contact during the clamping process. After the sample is clamped, the locking block 34 will engage in the middle position of the toothed block 32. Figure 3 As shown. Since both the locking block 34 and the toothed block 32 have straight edge structures, the straight edge of the toothed block 32 will limit the locking block 34, thereby realizing the locking function of the sampling clamp;

[0031] To release the locked position, medical staff simply place their middle finger on the outer wall of the curved rod 22 and apply pressure. The curved rod 22 will rotate around its hinge point with the forceps body 2. At this time, the sliding groove 221 exerts a force on the protrusion 232, forcing the long rod 23 to slide along the sliding groove 20. Figure 4 As shown, at this time, the rod 35, which is fixedly connected to the outer wall of the long rod 23, moves synchronously and pushes the locking block 34, so that the locking block 34 separates from the toothed block 32, thereby releasing the locking state of the sampling forceps.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sampling clamp, comprising a clamp body one (1) and a clamp body two (2), wherein the clamp body one (1) and the clamp body two (2) are connected by rivets (4), wherein the clamp body two (2) has a sliding groove (20) and a through groove (21), and the sampling clamp is provided with a locking mechanism and an unlocking mechanism, characterized in that: The unlocking mechanism includes: Arc rod (22), the arc rod (22) is hinged to the outer wall of the clamp body (2), and the end of the arc rod (22) is provided with a sliding groove (221). A long rod (23) has a protrusion (232) fixedly connected to one end, and the protrusion (232) is set in a sliding groove (221). The other end of the long rod (23) is fixedly connected to a rod body (35), and the rod body (35) is slidably connected to the sliding groove (20).

2. A sampling clamp according to claim 1, characterized in that: The locking mechanism includes an arc frame (31), which is connected to the outer wall of the clamp body (1), and the inner wall of the arc frame (31) is provided with multiple sets of tooth blocks (32).

3. A sampling clamp according to claim 1, characterized in that: The inner wall of the through groove (21) is connected to a housing (33), and a locking block (34) is provided inside the housing (33). A reset spring (36) is connected to the end of the locking block (34), and the end of the reset spring (36) away from the locking block (34) is connected to the inner wall of the housing (33).

4. A sampling clamp according to claim 3, characterized in that: The card block (34) has a slot (341), and the slot (341) is slidably connected to the rod (35).

5. A sampling clamp according to claim 1, characterized in that: An arc-shaped spring (5) is provided between the outer walls of clamp body one (1) and clamp body two (2).

6. A sampling clamp according to claim 1, characterized in that: The long rod (23) has a long groove (231) in the middle section, and the long groove (231) is slidably connected to a limit block (24), which is connected to the outer wall of the clamp body (2).

7. A sampling clamp according to claim 3, characterized in that: The housing (33) is located inside the arc frame (31), and the center of the arc frame (31) coincides with the midpoint of the rivet (4).