Slip ring and sampling pliers with same

Abstract

The utility model relates to the technical field of sampling pliers. The slip ring comprises a first slip ring body which is of a semicircular structure and is provided with a first end face and a second end face, the first end face is provided with an insertion groove, and the outer wall, adjacent to the first end face, of the first slip ring body is provided with a strip-shaped groove; the second slip ring body is of a semicircular structure and is provided with a third end face and a fourth end face, the third end face is rotationally connected with the outer side of the second end face, and the fourth end face is provided with a convex block; the first core hole positioning piece is arranged on the inner wall of the first slip ring main body; the second core hole positioning piece is arranged on the inner wall of the second slip ring main body; and the positioning hook is arranged in the central area of the peripheral wall of the second slip ring main body, and the positioning hook protrudes out of the fourth end face. The first slip ring main body and the second slip ring main body can be generated at one time by using one mold, so that the mold required by processing is saved, the slip ring and the pick-and-place ring can be assembled by locking and assembling twice as a whole, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling forceps, in particular to a slip ring and a sampling forceps with the same. Background Art

[0002] As a medical device, sampling forceps have been widely used in medical surgeries.

[0003] Most sampling forceps include a picking and placing ring and a slip ring. The picking and placing ring is connected to the slip ring through a core rod body, such as the sampling forceps structure shown in CN114767176A. For existing sampling forceps, the slip ring is used to fix the inner fixing parts of two groups of outer slip sleeves, a clamping plate fixed to the inner fixing parts, and a core hole opened at the center position of the inner fixing parts for tightly clamping a cable. As a result, the slip ring has more components and the assembly complexity increases.

[0004] Therefore, there is an urgent need for a slip ring with a simple structure and convenient assembly. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a slip ring and a sampling forceps with the same to solve the above technical problems.

[0006] The utility model provides a slip ring in the first aspect, including:

[0007] A first slip ring body, which is of a semi-circular structure and has a first end face and a second end face. The first end face has a slot, and a strip-shaped groove is provided on the outer wall of the first slip ring body adjacent to the first end face;

[0008] A second slip ring body, which is of a semi-circular structure and has a third end face and a fourth end face. The third end face is rotatably connected to the outside of the second end face, and the fourth end face has a convex block;

[0009] A first core hole positioning member, which is arranged on the inner wall of the first slip ring body;

[0010] A second core hole positioning member, which is arranged on the inner wall of the second slip ring body;

[0011] A positioning hook, which is arranged in the central area of the outer peripheral wall of the second slip ring body, and the positioning hook protrudes from the fourth end face; wherein,

[0012] The first slip ring body and the second slip ring body are integrally formed. When the first slip ring body and the second slip ring body are enclosed: the first end face and the fourth end face are in contact, the convex block is inserted into the slot to form a limiting structure; the first core hole positioning member and the second core hole positioning member are in contact, and a core hole is formed on the contacting end face; the positioning hook is inserted into the strip-shaped groove.

[0013] In some implementable ways, the first slip ring body includes a first semi-circular member and two first outer edges, and the two first outer edges are connected by the first semi-circular member; the second slip ring body includes a second semi-circular member and two second outer edges, and the two second outer edges are connected by the second semi-circular member;

[0014] The outer peripheral wall of the first semi-circular member is provided with the strip-shaped groove, and the first end face of the first semi-circular member is provided with the slot;

[0015] The outer peripheral wall of the second semi-circular member is provided with the positioning hook, and the fourth end face of the second semi-circular member is provided with the bump.

[0016] In some implementable ways, it further includes a reinforcing rib, and the reinforcing rib is arranged on the outer peripheral wall of the first slip ring body and along the axial direction of the first semi-circular member; the strip-shaped groove is located on the reinforcing rib and arranged along the length direction of the reinforcing rib.

[0017] In some implementable ways, the slot is arranged along the axial direction of the first semi-circular member; the bump is arranged along the axial direction of the second semi-circular member.

[0018] In some implementable ways, the positioning hook is arranged along the axial direction of the second slip ring body, and the hook end of the positioning hook can be deformed to adjust the relative distance from the second slip ring body.

[0019] In some implementable ways, a plurality of irregularly distributed limiting protrusions are arranged on the opposite side walls of the strip-shaped groove, and positioning protrusions are arranged on both the upper and lower surfaces of the hook of the positioning hook; among them,

[0020] When the hook of the positioning hook is inserted into the strip-shaped groove, the limiting protrusions and the positioning protrusions are mutually limited to prevent the separation of the strip-shaped groove and the positioning hook.

[0021] In some implementable ways, arc-shaped grooves are arranged at one end of the first core hole positioning member away from the first slip ring body and at one end of the second core hole positioning member away from the second slip ring body, and rubber coatings are coated on the inner walls of the two arc-shaped grooves, and the area surrounded by the rubber coatings surrounded by the two arc-shaped grooves is the core hole.

[0022] In the second aspect of the present application, a sampling forceps is provided, including the aforementioned slip ring.

[0023] Advantages of the present utility model: The present application provides a slip ring, which includes a first slip ring body, having a semi-circular structure with a first end face and a second end face. The first end face has a slot, and a strip-shaped groove is provided on the outer wall of the first slip ring body adjacent to the first end face; a second slip ring body, having a semi-circular structure with a third end face and a fourth end face. The third end face is rotatably connected to the outside of the second end face, and the fourth end face has a convex block; a first core hole positioning member is arranged on the inner wall of the first slip ring body; a second core hole positioning member is arranged on the inner wall of the second slip ring body; a positioning hook is arranged in the central area of the outer peripheral wall of the second slip ring body, and the positioning hook protrudes from the fourth end face; wherein, the first slip ring body and the second slip ring body are integrally formed; when the first slip ring body and the second slip ring body are enclosed: the first end face and the fourth end face are in contact, the convex block is inserted into the slot to form a limiting structure; the first core hole positioning member and the second core hole positioning member are in contact, and a core hole is formed on the contacting end face; the positioning hook is inserted into the strip-shaped groove. Rotate the second slip ring body by a certain angle at the connection position of the first slip ring body and the second slip ring body. The first slip ring body and the second slip ring body form an enclosed structure, and a double locking mechanism is formed by using the slot and the convex block, as well as the positioning hook and the strip-shaped groove to realize the locking of the first slip ring body and the second slip ring body to prevent the first slip ring body and the second slip ring body from separating. In the above structure, the first slip ring body and the second slip ring body are integrally formed, that is to say, a single mold can be used to generate the first slip ring body and the second slip ring body at one time, which not only saves the molds required for processing, but also, as a whole, only two locking assemblies are required to complete the assembly of the slip ring and the pick-and-place ring, having the advantages of simple structure and low cost. Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of a slip ring of the present utility model;

[0026] Figure 2 Expanded schematic diagram of a slip ring of the present utility model;

[0027] Figure 3 Schematic diagram of the insertion of the positioning hook and the strip-shaped groove of a slip ring of the present utility model;

[0028] Figure 4 Side view of a slip ring of the present utility model, showing the reinforcing ribs and the strip-shaped grooves;

[0029] Figure 5 Side view of a slip ring of the present utility model, showing the reinforcing ribs, the strip-shaped grooves and the positioning hooks.

[0030] Explanation of the reference numerals in the drawings:

[0031] 1. First slip ring body; 11. First core hole positioning member; 12. First semi-circular member; 13. First outer edge; 14. First end face; 15. Second end face; 16. Strip-shaped groove; 17. Slot; 18. Reinforcing rib; 19. Limit projection;

[0032] 2. Second slip ring body; 21. Second core hole positioning member; 22. Second semi-circular member; 23. Second outer edge; 24. Third end face; 25. Fourth end face; 26. Protrusion;

[0033] 3. Positioning hook; 31. Positioning projection;

[0034] 4. Core hole. Detailed implementation manners

[0035] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0036] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, the meaning of "a plurality of" is two or more, unless otherwise specifically defined. In addition, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood according to specific circumstances.

[0038] As Figures 1 to 5 shown, in the first aspect of the present application, a slip ring is provided, which includes a first slip ring body 1, a second slip ring body 2, a first core hole positioning member 11, a second core hole positioning member 21 and a positioning hook 3.

[0039] Among them, both the first slip ring body 1 and the second slip ring body 2 are semi-circular structures. In this way, after the two semi-circular structures are spliced, a circular shape will be formed. Specifically, the first slip ring body 1 includes a first semi-circular member 12 and two first outer edges 13, and the two first outer edges 13 are connected by the first semi-circular member 12; the second slip ring body 2 includes a second semi-circular member 22 and two second outer edges 23, and the two second outer edges 23 are connected by the second semi-circular member 22.

[0040] It should be noted that the first slip ring body 1 has a first end face 14 and a second end face 15, that is to say, the two ends of the first slip ring body 1 are the first end face 14 and the second end face 15 respectively; the second slip ring body 2 has a third end face 24 and a fourth end face 25, that is to say, the two ends of the second slip ring body 2 are the third end face 24 and the fourth end face 25 respectively; next, the outer edge of the second end face 15 is connected to the outer edge of the third end face 24 to form a whole. In this way, when processing the first slip ring body 1 and the second slip ring body 2, one mold can be used to process the first slip ring body 1 and the second slip ring body 2, without two molds, so that one mold can be saved. The connection position of the first slip ring body 1 and the second slip ring body 2 uses the same material as that of the first slip ring body 1 and the second slip ring body 2.

[0041] It should also be noted that the outer peripheral wall of the first semi-circular member 12 is provided with the strip-shaped groove 16, and the first end face 14 of the first semi-circular member 12 is provided with the slot 17; the outer peripheral wall of the second semi-circular member 22 is provided with the positioning hook 3, and the fourth end face 25 of the second semi-circular member 22 is provided with the protrusion 26. That is to say, after the first slip ring body 1 and the second slip ring body 2 are spliced, the protrusion 26 can be inserted into the slot 17 to form a structure of mutual limitation, so that the separation of the corresponding second end face 15 and the fourth end face 25 of the first slip ring body 1 and the second slip ring body 2 can be prevented.

[0042] Finally, it should be noted that the slot 17 is arranged along the axial direction of the first semi-circular member 12; the protrusion 26 is arranged along the axial direction of the second semi-circular member 22. That is to say, the slot 17 has a certain length, and the length can be adjusted as needed. Exemplarily, the slot 17 is the longest and can be arranged axially from one end of the first semi-circular member 12 to the other end. Preferably, the two ends of the slot 17 are at a certain distance from the first outer edge 13. The length of the protrusion 26 corresponds to that of the slot 17, so that it is convenient for the protrusion 26 to be inserted into the slot 17 to form a limit. In addition, after the slot 17 and the protrusion 26 are inserted, an interference fit is formed between the slot 17 and the protrusion 26.

[0043] The first core hole positioning member 11 is arranged on the inner wall of the first slip ring body 1, and the second core hole positioning member 21 is arranged on the inner wall of the second slip ring body 2. The first core hole positioning member 11 and the second core hole positioning member 21 have the same structure and are both strip-shaped structures. When the end of the first core hole positioning member 11 away from the first slip ring body 1 abuts against the end of the second core hole positioning member 21 away from the second slip ring body 2, the end faces where the first core hole positioning member 11 and the second core hole positioning member 21 abut form the core hole 4, and this core hole 4 is used to fix the end of the cable (the cable is a conventional structure of a sampling pliers, one end of the cable is fixed to the slip ring, and the other end is connected to the jaw assembly).

[0044] Specifically, the end of the first core hole positioning member 11 away from the first slip ring body 1 and the end of the second core hole positioning member 21 away from the second slip ring body 2 are both provided with arc-shaped grooves, and rubber coatings are applied on the inner walls of the two arc-shaped grooves. The area surrounded by the rubber coatings surrounded by the two arc-shaped grooves is the core hole 4. The rubber coating can increase the anti-slip effect.

[0045] The positioning hook 3 is arranged in the central area of the outer peripheral wall of the second slip ring body 2, and the positioning hook 3 protrudes from the fourth end face 25. In this way, when the first slip ring body 1 and the second slip ring body 2 are surrounded: the positioning hook 3 is inserted into the strip-shaped groove 16 to form a limiting structure to prevent the first slip ring body 1 and the second slip ring body 2 from separating.

[0046] Specifically, the positioning hook 3 has a certain length and is arranged along the axial direction of the second slip ring body 2. The hook end of the positioning hook 3 can use deformation to adjust the relative distance from the second slip ring body 2. That is to say, the positioning hook 3 is made of a material that deforms when subjected to an external force and returns to its original state after the external force is removed. For example, the positioning hook 3 is made of plastic. The positioning hook 3 slides along the outer wall of the second semi-circular member 22 during the process of the bump 26 being inserted into the slot 17. At this time, the positioning hook 3 deforms due to the external force given by the second semi-circular member. When the bump 26 and the slot 17 are plugged in properly, the positioning hook 3 can be inserted into the strip-shaped groove 16. At this time, the positioning hook 3 resets, that is, the distance between the positioning hook 3 and the bump 26 is less than the distance between the side wall of the slot I7 and the outer wall of the first semi-circular member 12. In this way, the positioning hook 3 will deform during use. It should be noted that the hook end of the positioning hook 3 can be inclined at a certain angle, that is, the bending angle is less than 90 degrees, preferably 70-80 degrees, such as 80 degrees. In this way, when the first slip ring body 1 is separated from the second slip ring body 2, a better block can be formed.

[0047] In one embodiment, a slip ring further includes a reinforcing rib 18. The reinforcing rib 18 is provided on the outer peripheral wall of the first slip ring body 1 and is arranged along the axial direction of the first semi-circular member 12; the strip-shaped groove 16 is located on the reinforcing rib 18 and is arranged along the length direction of the reinforcing rib 18.

[0048] The function of the reinforcing rib 18 is to increase the strength of the first slip ring body 1 and prevent the strength of the first slip ring body 1 from being affected due to the existence of the slot 17 and the strip-shaped groove 16. The reinforcing rib 18 and the first slip ring body 1 are integrally formed.

[0049] In one embodiment, a plurality of irregularly distributed limiting protrusions 19 are provided on the opposite side walls of the strip-shaped groove 16, and positioning protrusions 31 are provided on both the upper and lower surfaces of the hook of the positioning hook 3; wherein, when the hook of the positioning hook 3 is inserted into the strip-shaped groove 16, the limiting protrusions 19 and the positioning protrusions 31 are mutually limited to prevent the strip-shaped groove 16 from separating from the positioning hook 3.

[0050] It should be noted that, in order to increase the firmness after the substitutional hook is assembled with the strip groove 16, a plurality of limiting protrusions 19 are provided on the opposite side walls of the strip groove 16, and positioning protrusions 31 are provided on the upper and lower surfaces of the hook surface of the positioning hook 3. In this way, when the positioning hook 3 is inserted into the strip groove 16, although the difficulty is increased to a certain extent, at the same time, when the positioning hook 3 is separated from the strip groove 16, the difficulty is also increased. Further, the limiting protrusion 19 can be designed into an inverted hook type. Similarly, inverted hook types are provided on the upper and lower surfaces of the hook end of the positioning hook 3. In this way, when the positioning hook 3 is inserted into the strip groove 16, the influence of the inverted hooks on the strip groove 16 and the inverted hooks on the positioning hook 3 on each other is relatively small. On the contrary, when the positioning hook 3 is separated from the strip groove 16, the guiding hooks at the hook end and the inverted hooks in the strip groove 16 are mutually limited, which will be much greater than the force required when the positioning hook 3 is inserted into the strip groove 16.

[0051] The second aspect of the present application provides a sampling forceps, including the aforementioned slip ring.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slip ring, characterized in that, Comprising: A first slip ring body (1), which is of a semi-circular structure and has a first end face (14) and a second end face (15). The first end face (14) has a slot (17), and a strip-shaped groove (16) is provided on the outer wall of the first slip ring body (1) adjacent to the first end face (14); A second slip ring body (2), which is of a semi-circular structure and has a third end face (24) and a fourth end face (25). The third end face (24) is rotatably connected to the outside of the second end face (15), and the fourth end face (25) has a protrusion (26); A first core hole positioning member (11), which is arranged on the inner wall of the first slip ring body (1); A second core hole positioning member (21), which is arranged on the inner wall of the second slip ring body (2); A positioning hook (3), which is arranged in the central area of the outer peripheral wall of the second slip ring body (2), and the positioning hook (3) protrudes from the fourth end face (25); wherein, The first slip ring body (1) and the second slip ring body (2) are integrally formed. When the first slip ring body (1) and the second slip ring body (2) are enclosed: the first end face (14) and the fourth end face (25) are in contact, the protrusion (26) is inserted into the slot (17) to form a limiting structure; the first core hole positioning member (11) and the second core hole positioning member (21) are in contact, and a core hole (4) is formed on the contacting end face; the positioning hook (3) is inserted into the strip-shaped groove (16).

2. The slip ring according to claim 1, wherein The first slip ring body (1) includes a first semi-circular member (12) and two first outer edges (13), and the two first outer edges (13) are connected by the first semi-circular member (12); the second slip ring body (2) includes a second semi-circular member (22) and two second outer edges (23), and the two second outer edges (23) are connected by the second semi-circular member (22); The strip-shaped groove (16) is provided on the outer peripheral wall of the first semi-circular member (12), and the slot (17) is provided on the first end face (14) of the first semi-circular member (12); The positioning hook (3) is provided on the outer peripheral wall of the second semi-circular member (22), and the protrusion (26) is provided on the fourth end face (25) of the second semi-circular member (22).

3. The slip ring according to claim 2, wherein, It further includes a reinforcing rib (18), and the reinforcing rib (18) is arranged on the outer peripheral wall of the first slip ring body (1) and is arranged along the axial direction of the first semi-circular member (12); the strip-shaped groove (16) is located on the reinforcing rib (18) and is arranged along the length direction of the reinforcing rib (18).

4. The slip ring according to claim 2, wherein, The slot (17) is arranged along the axial direction of the first semi-circular member (12); the protrusion (26) is arranged along the axial direction of the second semi-circular member (22).

5. The slip ring according to claim 1, characterized in that, The positioning hook (3) is arranged along the axial direction of the second slip ring body (2), and the hook end of the positioning hook (3) can be deformed to adjust the relative distance from the second slip ring body (2).

6. The slip ring according to claim 1, characterized in that, A plurality of irregularly distributed limiting protrusions (19) are provided on the opposite side walls of the strip-shaped groove (16), and positioning protrusions (31) are provided on both the upper and lower surfaces of the hook of the positioning hook (3); wherein, When the hook of the positioning hook (3) is inserted into the strip-shaped groove (16), the limiting protrusion (19) and the positioning protrusion (31) are mutually limited to prevent the strip-shaped groove (16) from separating from the positioning hook (3).

7. The slip ring according to claim 3, wherein At one end of the first core hole positioning member (11) far from the first slip ring body (1) and at one end of the second core hole positioning member (21) far from the second slip ring body (2), arc-shaped grooves are provided, and rubber coatings are applied on the inner walls of the two arc-shaped grooves. The area surrounded by the rubber coatings surrounded by the two arc-shaped grooves is the core hole (4).

8. A sampling forceps, characterized in that, Comprising a slip ring according to any one of claims 1-7.

Images