Probe with detachable probe shaft
By creating cutting and separating grooves on the side wall of the probe tube, and utilizing elastic deformation to disengage from the limiting structure, the problem of the existing probes being unable to be replaced in a timely manner is solved, enabling convenient replacement of the needle shaft and reset component, and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中探探针(福建)有限公司
- Filing Date
- 2025-03-17
- Publication Date
- 2026-05-19
AI Technical Summary
The existing probes cannot be replaced in a timely manner when the probe shaft and/or spring are damaged, resulting in the replacement of the entire probe and causing unnecessary cost losses.
The needle tube is designed with a cutting groove and multiple dividing grooves on the side wall. The side wall block is equipped with a limiting structure, and the needle shaft is equipped with a matching limiting structure. The limiting structure is disengaged through elastic deformation, which facilitates the disassembly and replacement of the needle shaft and the reset component.
It enables convenient replacement of the pin shaft and reset component, reducing replacement costs.
Smart Images
Figure CN224263277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a probe, and more particularly to a probe with a detachable needle shaft. Background Technology
[0002] A pogo pin (also known as a probe) is a core component in precision connectors used in consumer electronics, communications, automotive, medical, aerospace, and military industries. The probe is used to establish an electrical connection between the precision connector and external electronic components, thereby enabling the precision connector to function properly.
[0003] Currently, in existing probe assemblies, the spring and needle shaft are first inserted into the needle tube from the first end; then, a riveting process is used to rivet a necked structure at the first end of the needle tube to prevent the needle shaft from detaching. Because the first end of the needle tube has this necked structure, it is impossible to replace the needle shaft and / or spring immediately if they are damaged; the entire probe must be replaced, resulting in unnecessary cost losses.
[0004] Therefore, there is an urgent need for a probe with a detachable needle shaft to overcome the above-mentioned defects. Utility Model Content
[0005] The purpose of this invention is to provide a probe with a detachable needle shaft, which allows for easy replacement of the needle shaft and reset component, thereby reducing cost losses.
[0006] To achieve the above objectives, the detachable needle shaft probe of this utility model includes a needle shaft, a reset component, and a needle tube with a receiving cavity. The receiving cavity penetrates the first end face of the needle tube. The reset member and the needle shaft are sequentially disposed in the receiving cavity along the direction of the receiving cavity penetrating the first end face of the needle tube. The reset member causes the needle shaft to slide along the direction of the receiving cavity penetrating the first end face of the needle tube, and the needle shaft is exposed outward from the first end face of the needle tube. A cutting through groove and a plurality of partitioning through grooves are provided on the side wall of the needle tube, which are circumferentially spaced and communicate with the receiving cavity. The partitioning through grooves are located between the first end face and the second end face of the needle tube. All the partitioning through grooves define a corresponding number of side wall blocks at corresponding positions on the side wall of the needle tube. The side wall blocks are provided with limiting structures facing the receiving cavity. The needle shaft is correspondingly provided with matching limiting structures that cooperate with the limiting structures for limiting. The cutting through groove cuts off the connection between a portion of all the side wall blocks or one end of the portion and the side wall. By means of the elastic deformation of the side wall block away from the needle shaft at the connection or by the side wall block that has been cut off, the limiting structures and matching limiting structures on the side wall block are disengaged from each other.
[0007] Compared with existing technologies, the design of "a cutting groove and multiple partition grooves arranged circumferentially on the side wall of the needle tube and communicating with the receiving cavity, the partition grooves being located between the first and second end faces of the needle tube, all partition grooves defining a corresponding number of side wall blocks at corresponding positions on the side wall of the needle tube, the side wall blocks having a limiting structure facing the receiving cavity, and the needle shaft having a corresponding limiting structure that cooperates with the limiting structure for limiting; the cutting groove cutting off part of the side wall block or the connection between one end of the part and the side wall" means that when the needle shaft and / or the reset component is damaged, force is applied to cause the connection or the side wall block that has been cut off to undergo elastic deformation away from the needle shaft, causing the limiting structure and the limiting structure on the side wall block to disengage from each other, thereby allowing the needle shaft and the reset component to be disassembled from the needle tube, thus facilitating the replacement of the needle shaft and / or the reset component, and thus reducing costs.
[0008] To achieve the above objectives, the detachable needle shaft probe of this utility model includes a needle shaft, a reset member, and a needle tube with a receiving cavity. The receiving cavity penetrates the first end face of the needle tube. The reset member and the needle shaft are sequentially disposed in the receiving cavity along the direction in which the receiving cavity penetrates the first end face of the needle tube. The reset member causes the needle shaft to slide along the direction in which the receiving cavity penetrates the first end face of the needle tube, and the needle shaft protrudes outward from the first end face of the needle tube. A plurality of partition grooves are provided on the side wall of the needle tube, which are circumferentially spaced and communicate with the receiving cavity. The partition grooves penetrate the first end face of the needle tube. All the partition grooves define a corresponding number of side wall blocks at corresponding positions on the side wall of the needle tube. The side wall blocks are provided with limiting structures facing the receiving cavity. The needle shaft is correspondingly provided with matching limiting structures that cooperate with the limiting structures for limiting. The limiting structures and matching limiting structures are disengaged from each other by the elastic deformation of the side wall blocks away from the needle shaft.
[0009] Compared with existing technologies, the design of "multiple circumferentially spaced and connected to the receiving cavity on the side wall of the needle tube, the circumferentially spaced and connected to the receiving cavity, the circumferentially spaced and connected to the first end face of the needle tube ...
[0010] Preferably, the cutting through groove connects two adjacent separating through grooves.
[0011] Preferably, the dividing channel extends along the direction of the receiving cavity through the first end face of the needle tube, and the cutting channel is connected to the end of the dividing channel.
[0012] Preferably, the cutting channel is arranged at an angle relative to the dividing channel in a direction close to the first end face of the needle tube.
[0013] Preferably, a groove extending axially along the needle shaft is formed on the side wall of the needle shaft, and the groove end wall away from the first end face of the needle tube forms the limiting structure.
[0014] Preferably, the limiting structure is a protrusion that protrudes into the receiving cavity.
[0015] Preferably, the groove also surrounds the axis of the needle shaft, and at least one of the remaining sidewall blocks is also provided with a protrusion.
[0016] Preferably, the protrusion structure is arranged in a spherical notch shape.
[0017] Preferably, the limiting structure is an inclined structure that is inclined toward the axis of the needle shaft in the direction of the receiving cavity penetrating the first end face of the needle tube.
[0018] Preferably, the needle tube further has a receiving cavity that communicates with the receiving cavity and extends through the second end face of the needle tube, and the reset member is also located in the receiving cavity.
[0019] Preferably, the reset element is a spring.
[0020] Preferably, the receiving cavity is a cylindrical cavity, the receiving cavity is a frustum cavity, and the dimensions of the bottom of the frustum cavity are the same as the dimensions of the cylindrical cavity. Attached Figure Description
[0021] Figure 1 This is a perspective view of the detachable probe shaft of the first embodiment of this utility model.
[0022] Figure 2 yes Figure 1 The diagram shows an exploded three-dimensional view of a detachable probe shaft when the shaft is removed from the syringe.
[0023] Figure 3 yes Figure 1 The diagram shows a plan view of the detachable probe viewed in the opposite direction of arrow A.
[0024] Figure 4 It is along Figure 3 Internal view of the section cut along the BB line.
[0025] Figure 5 yes Figure 2A plan view of the needle shaft.
[0026] Figure 6 yes Figure 2 A 3D diagram of a syringe.
[0027] Figure 7 yes Figure 6 The diagram shows a plan view of the syringe.
[0028] Figure 8 It is along Figure 7 Internal view of the section cut along the CC line.
[0029] Figure 9 It is along Figure 8 Internal view of the section cut along the DD line.
[0030] Figure 10 This is an internal view of the detachable probe of the second embodiment of this utility model.
[0031] Figure 11 yes Figure 10 The diagram shows a plan view of the needle shaft in a detachable needle shaft probe.
[0032] Figure 12 yes Figure 10 The diagram shows a plan view of the needle tube in a detachable needle shaft probe.
[0033] Figure 13 yes Figure 12 The diagram shown is a plan view of the syringe viewed in the opposite direction of arrow A. Detailed Implementation
[0034] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.
[0035] Please see Figure 1 , Figure 2 and Figure 4 The first embodiment of the detachable needle shaft probe 100 includes a needle shaft 10, a spring 20, and a needle tube 30 having a receiving cavity 31. The receiving cavity 31 penetrates the first end face 32 of the needle tube 30. Optionally, it is located at... Figure 9 In this example, the receiving cavity 31 is a straight-lined cavity to facilitate its manufacturing at the needle tube 30; obviously, depending on actual needs, the receiving cavity 31 can also be extended in other shapes, therefore it is not considered... Figure 4 and Figure 9As shown, the spring 20 and the needle shaft 10 are sequentially arranged in the receiving cavity 31 along the direction of penetrating the first end face 32 of the needle tube 30 (i.e., the direction indicated by arrow A). The spring 20 causes the needle shaft 10 to slide along the direction of penetrating the first end face 32 of the needle tube 30 in the receiving cavity 31, so as to meet the need for the needle shaft 10 to automatically reset under the action of the spring 20. The needle shaft 10 is exposed to the outside from the first end face 32 of the needle tube 30, so as to meet the need for the needle shaft 10 to contact with external components.
[0036] The needle tube 30 has a cutting groove 37 and two partition grooves 34 arranged circumferentially spaced and communicating with the receiving cavity 31 on its side wall 33. The partition grooves 34 are located between the first end face 32 and the second end face 36 of the needle tube 30. All the partition grooves 34 define two side wall blocks 35 at corresponding positions on the side wall 33 of the needle tube 30. That is to say, the number of partition grooves 34 is the same as the number of side wall blocks 35. See the diagram for details. Figure 8 As shown. The side wall block 35 is provided with a limiting structure 351 facing the receiving cavity 31. Optionally, it is... Figure 8 As an example, each sidewall block 35 is provided with a limiting structure 351 to provide a limiting effect on the needle shaft 10 from multiple positions in the circumferential direction; obviously, depending on actual needs, some sidewall blocks 35 may also be provided with limiting structures 351, therefore, it is not necessary to specify the limiting structure 351. Figure 8 As shown, the needle shaft 10 is provided with a limiting structure 11 that cooperates with the limiting structure 351 for limiting.
[0037] Back Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9 As an example, the cutting groove 37 cuts off the connection between one end of a sidewall block 35 and the sidewall 33; obviously, depending on actual needs, the cutting groove 37 can also be designed to cut off the sidewall block 35 itself, that is, to divide the sidewall block 35 into two, so it is not considered... Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 9 The above is the limit.
[0038] Therefore, during the disassembly of the needle shaft 10, the side wall block 35, which is cut off at the connection point, undergoes elastic deformation away from the needle shaft 10, causing the limiting structure 351 and the matching limiting structure 111 on the side wall block 35 to disengage, thereby allowing the needle shaft 10 to be disassembled from the needle tube 30. It should be noted that since the cutting groove 37 only cuts the connection between one end of a side wall block 35 and the side wall 33, the remaining side wall block 35 serves as a supporting connection, thus ensuring the structural strength of the entire needle tube 30. To ensure a more reliable supporting connection, the central angle occupied by the remaining side wall block 35 is larger than the central angle occupied by the side wall block 35 that is cut off at the connection point. That is, the side wall block 35 that is cut off at the connection point and the uncut side wall block 35 are arranged in different sizes, and the uncut side wall block 35 is larger than the side wall block 35 that is cut off at the connection point. (See the diagram below.) Figure 8 As shown. Also, although Figure 8 The diagram shows two dividing slots 34. Obviously, depending on actual needs, the number of dividing slots 34 can be other than this, so it is not limited to this. More specifically, as follows:
[0039] like Figure 1 , Figure 4 , Figure 6 and Figure 7 As shown, as an example, the dividing groove 34 extends along the direction of the receiving cavity 31 through the first end face 32 of the needle tube 10, so as to facilitate the manufacturing and processing of the dividing groove 34 on the side wall 33 of the needle tube 30; the cutting groove 37 connects the ends of two adjacent dividing grooves 34 to effectively ensure the suspension length of the side wall block 35 cut off by the cutting groove 37 at the connection, thereby making the elastic deformation of the side wall block 35 cut off at the connection easier. Specifically, in Figure 7 and Figure 9 In this example, the cutting groove 37 is arranged at an angle relative to the separating groove 34, with the cutting groove 37 inclined towards the first end face 32 of the needle tube 30. This arrangement ensures that the ends of the side wall blocks 35 cut by the cutting groove 37 at the connection point are inclined towards the first end face 32 of the needle tube 30. This design facilitates the insertion of the needle shaft 10 into all the side wall blocks 35 during the insertion of the needle tube 30. Obviously, depending on actual needs, the cutting groove 37 can also be arranged perpendicularly to the separating groove 34. Therefore, it is not necessary to arrange it perpendicularly to the separating groove 34. Figure 7 and Figure 9 The above is the limit.
[0040] like Figure 2 , Figure 4 and Figure 5 As shown, as an example, a groove 10b extending axially along the needle shaft 10 is formed on the side wall 10a of the needle shaft 10. The groove end wall of the groove 10b away from the first end face 32 of the needle tube 30 forms a fitting structure 11, as shown in the figure. Figure 4As shown. At this time, the limiting structure 351 is a protruding structure protruding into the receiving cavity 31. Specifically, in conjunction with... Figure 2 , Figure 4 and Figure 5 As an example, the groove 10b also surrounds the axis C1 of the needle shaft to facilitate the manufacturing and processing of the groove 10b on the side wall 10a of the needle shaft 10. While satisfying the limiting position of the needle shaft 10 and the needle tube 30, it also reduces the number of mating positions between the side wall 10a of the needle shaft 10 and the receiving cavity 31. In addition, the limiting structure 11 is an inclined structure, that is, the inclined structure can also be indicated by the reference numeral 11. The inclined structure 11 is inclined towards the axis C1 of the needle shaft 10 along the direction of the first end face 32 of the receiving cavity 31 penetrating the needle tube 30. During the process of removing the needle shaft 10 from the needle tube 30, the limiting structure 351 on the cut side wall block 35 is opened by the inclined structure 11 of the needle shaft 10 to achieve the purpose of removing the needle shaft 10, so that the removal of the needle shaft 10 is more convenient. In addition, to improve the convenience of the removal operation, the protruding structure (i.e., indicated by the reference numeral 351) is provided in the shape of a ball notch.
[0041] like Figure 4 and Figure 9 As shown, the needle tube 30 also has a receiving cavity 38 that communicates with the receiving cavity 31 and extends through the second end face 36 of the needle tube 30. The spring 20 is also located in the receiving cavity 38. Optionally, it is combined with... Figure 8 As an example, the receiving cavity 31 is a circular cavity, and the receiving cavity 38 is a frustum-shaped cavity. The dimensions of the bottom of the frustum-shaped cavity are the same as those of the cylindrical cavity. This design facilitates the machining of the receiving cavity 31 and the receiving cavity 38 within the needle tube 30, and also facilitates the abutment and engagement of the spring 20 and the needle tube 30. Obviously, depending on actual needs, the receiving cavity 31 can also be a regular polygonal cavity, and correspondingly, the receiving cavity 38 can be a regular frustum-shaped cavity. Therefore, it is not considered... Figure 4 and Figure 9 The above is for reference only. Additionally, regarding... Figure 9 In the middle, the remaining of all the side wall blocks 33 are also provided with two of the aforementioned protruding structures (i.e., indicated by the reference numeral 351). Obviously, the number of protruding structures is not limited to this, depending on actual needs.
[0042] Please see Figures 10 to 13 The second embodiment of the detachable needle shaft probe 100' has a basically the same structure as the first embodiment of the detachable needle shaft probe 100, with the following differences:
[0043] (1) In the second embodiment, the dividing groove 34 penetrates the first end face 32 of the needle tube 30, and the number of dividing grooves 34 is 3; while in the first embodiment, the dividing groove 34 is located between the first end face 32 and the second end face 36 of the needle tube 30, and the number of dividing grooves 34 is two.
[0044] (2) In the second embodiment, the groove 10b on the needle shaft 10' has only one groove end wall, and the matching structure 11 is formed by the groove end wall; while in the first embodiment, the groove 10b on the needle shaft 10 has two groove end walls, and the matching structure 11 is formed by the groove end wall away from the first end face 32 of the needle tube 30.
[0045] Apart from the differences mentioned above, the other two are the same, so they will not be repeated here.
[0046] In summary, in the first embodiment, by utilizing the design of "a cutting groove 37 and a plurality of partition grooves 34 arranged circumferentially on the side wall 33 of the needle tube 30 and communicating with the receiving cavity 31, the partition grooves 37 being located between the first end face 32 and the second end face 36 of the needle tube 30, and the cutting grooves 37 cutting off a portion of the side wall block 35 or the connection between one end of the portion and the side wall 33", when the needle shaft 10 and / or the spring 20 are damaged, force is applied to cause the connection or the side wall block 35 that has been cut off to undergo elastic deformation away from the needle shaft 10, so that the limiting structure 351 and the matching limiting structure 11 on the side wall block 35 disengage, thereby allowing the needle shaft 10 and the spring 20 to be disassembled from the needle tube 30, thus facilitating the replacement operation of the needle shaft 10 and / or the spring 20, thereby reducing cost losses.
[0047] In the second embodiment, by means of "multiple partition grooves 34 are provided on the side wall 33 of the needle tube 30', which are circumferentially spaced and communicate with the receiving cavity 31, the partition grooves 34 penetrate the first end face 32 of the needle tube 30', and all the partition grooves 34 define a corresponding number of side wall blocks 35 at the corresponding positions of the side wall 33 of the needle tube 30', and the side wall blocks 35 are provided with limiting structures 351 facing the receiving cavity 31, and the needle shaft 10' is correspondingly provided with a matching limiting structure 11 that cooperates with the limiting structure 351 for limiting", when the needle shaft 10' and / or the spring 20 are damaged, force is applied to make the side wall blocks 35 elastically deform away from the needle shaft 10', so that the limiting structure 351 and the matching limiting structure 11 on the side wall blocks 35 disengage from each other, thereby allowing the needle shaft 10' and the spring 20 to be disassembled from the needle tube 30', thus facilitating the replacement operation of the needle shaft 10' and / or the spring 20, thereby reducing cost losses.
[0048] It is worth noting that the spring 20 described above is one embodiment of the reset member. Obviously, depending on actual needs, the reset member can also be a magnetic reset member, so it is not limited to what is shown in the attached drawings. In addition, the axial direction of the needle shaft 10 (10') is the direction indicated by arrow A and the opposite direction.
[0049] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A detachable probe shaft, comprising a needle shaft, a reset member, and a needle tube having a receiving cavity, the receiving cavity penetrating a first end face of the needle tube, the reset member and the needle shaft being sequentially disposed in the receiving cavity along the direction of the receiving cavity penetrating the first end face of the needle tube, the reset member causing the needle shaft to slide along the direction of the receiving cavity penetrating the first end face of the needle tube, the needle shaft being exposed outward from the first end face of the needle tube, characterized in that, The needle tube has a cutting groove and a plurality of partition grooves arranged circumferentially around the needle tube and communicating with the receiving cavity. The partition grooves are located between the first end face and the second end face of the needle tube. All the partition grooves define a corresponding number of side wall blocks at corresponding positions on the side wall of the needle tube. The side wall blocks are provided with limiting structures facing the receiving cavity. The needle shaft is correspondingly provided with matching limiting structures that cooperate with the limiting structures for limiting. The cutting groove cuts off the connection between a portion of all the side wall blocks or one end of the portion and the side wall. The limiting structure and the matching structure on the side wall block are disengaged from each other by the elastic deformation of the side wall block away from the needle shaft through the connection or by the side wall block being cut off.
2. The detachable probe shaft according to claim 1, characterized in that, The cutting channel connects two adjacent separating channels.
3. The detachable probe shaft according to claim 2, characterized in that, The dividing channel extends along the receiving cavity through the first end face of the needle tube, and the cutting channel is connected to the end of the dividing channel; the cutting channel is arranged at an angle relative to the dividing channel in a direction close to the first end face of the needle tube.
4. A detachable probe shaft, comprising a needle shaft, a reset member, and a needle tube having a receiving cavity, the receiving cavity penetrating a first end face of the needle tube, the reset member and the needle shaft being sequentially disposed in the receiving cavity along the direction of the receiving cavity penetrating the first end face of the needle tube, the reset member causing the needle shaft to slide along the direction of the receiving cavity penetrating the first end face of the needle tube, the needle shaft being exposed outward from the first end face of the needle tube, characterized in that, The needle tube has multiple circumferentially spaced, through-slots that communicate with the receiving cavity. The through-slots penetrate the first end face of the needle tube. All the through-slots define a corresponding number of sidewall blocks at corresponding positions on the sidewall of the needle tube. Each sidewall block has a limiting structure facing the receiving cavity. The needle shaft has a corresponding limiting structure that cooperates with the limiting structure for limiting. The limiting structure and the limiting structure disengage from each other by means of the elastic deformation of the sidewall blocks away from the needle shaft.
5. The detachable probe shaft according to claim 1 or 4, characterized in that, A groove extending axially along the needle shaft is formed on the side wall of the needle shaft, and the groove end wall away from the first end face of the needle tube forms the limiting structure; the limiting structure is a protrusion structure protruding into the receiving cavity.
6. The detachable probe shaft according to claim 5, characterized in that, The groove also surrounds the axis of the needle shaft, and at least one of the remaining sidewall blocks is also provided with a protrusion.
7. The detachable probe shaft according to claim 6, characterized in that, The protruding structure is arranged in a spherical notch shape.
8. The detachable probe shaft according to claim 1 or 4, characterized in that, The limiting structure is an inclined structure, which is inclined towards the axis of the needle shaft along the direction of the receiving cavity penetrating the first end face of the needle tube.
9. The detachable probe shaft according to claim 1 or 4, characterized in that, The needle tube also has a receiving cavity that communicates with the receiving cavity and extends through the second end face of the needle tube, and the reset member is also located in the receiving cavity; the reset member is a spring.
10. The detachable probe shaft according to claim 9, characterized in that, The receiving cavity is a cylindrical cavity, and the receiving cavity is a frustum cavity, the dimensions of the bottom of the frustum cavity are the same as the dimensions of the cylindrical cavity.