Spring needle with sealing performance

Abstract

A spring needle with sealing performance includes: a needle tube, wherein an assembly cavity is formed axially inside the needle tube; a needle shaft, including an abutting end extending out of the assembly cavity and a sliding part slidably connected within the assembly cavity; an elastic element disposed within the assembly cavity; an anti-detachment structure disposed on the sliding part of the needle shaft; and a sealing structure disposed between the needle shaft and the assembly cavity. This technical solution, through the sealing structure, seals the gap between the needle tube and the needle shaft, thereby preventing e-cigarette smoke from entering the spring needle through the gap and preventing oil fumes from corroding and damaging the internal structure of the spring needle. Simultaneously, the anti-detachment structure effectively prevents the needle shaft from detaching within the needle tube, thus ensuring sufficient performance and extending the service life of the spring needle.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a spring pin with sealing performance. Background Technology

[0002] A spring pin, also known as a pogo pin or spring-loaded pin, is a precision connector used in electronic products to transmit signals. It typically consists of a pin shaft, a pin tube, and a spring.

[0003] Electronic cigarettes are a relatively new type of electronic product, mainly composed of three parts: a cartridge, an vaporizer, and a battery. The vaporizer is powered by the battery and can convert the liquid nicotine in the cartridge into vapor, giving the user a feeling similar to smoking when inhaling. In the process of connecting the circuits of electronic cigarettes, spring pins are often used to connect the circuits.

[0004] However, because the evaporation device generates smoke, the smoke can enter the spring needle through the gap between the needle shaft and the needle tube. Furthermore, since the smoke carries a certain amount of soot, it can affect the precision of the spring needle, leading to a decrease in the performance of the spring needle or even its failure.

[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this utility model is to provide a spring pin with sealing performance. To solve the above-mentioned technical problems, this utility model adopts the following technical solution: A spring pin with sealing properties includes: A needle tube, wherein an assembly cavity is formed inside the needle tube along its axial direction, and both ends of the assembly cavity are provided with openings; The needle shaft is slidably connected within the assembly cavity, and includes an abutting end that extends out of the opening at one end of the assembly cavity and a sliding part that is slidably connected within the assembly cavity. An elastic element is disposed within the assembly cavity and acts between the needle tube and the needle shaft to provide an elastic thrust to the needle shaft in the axial direction. An anti-detachment structure is provided on the sliding part of the needle shaft, and at least a portion of the anti-detachment structure is provided outside the assembly cavity and has a diameter larger than the diameter of the assembly cavity; A sealing structure is provided between the needle shaft and the assembly cavity to seal the gap between the needle shaft and the assembly cavity.

[0007] Furthermore, the sealing structure includes a mounting groove formed within the assembly cavity and a sealing ring disposed within the mounting groove.

[0008] Furthermore, the needle includes: A tube body, wherein the assembly cavity is formed inside the tube body; A sleeve is inserted into one end of a tube body with an interference fit. The tube body has a port that communicates with the assembly cavity. The port is formed with a flange that extends radially toward the axis. A space is provided between the flange and the end of the tube body. The space defines the mounting groove. The sealing ring is engaged within the space.

[0009] Furthermore, the gap between the flange and the end of the tube body is smaller than the wire diameter of the sealing ring.

[0010] Furthermore, the anti-detachment structure includes: A mounting hole is formed in the sliding part; One end of the connecting post is interference-fitted into the mounting hole, and the other end of the connecting post extends out of the other end opening of the assembly cavity and is formed with a tail that is larger than the diameter of the assembly cavity.

[0011] Furthermore, the elastic element is sleeved on the connecting post, and both ends of the elastic element abut against the bottom of the sliding part and the assembly cavity, respectively.

[0012] Optionally, the sealing structure includes an annular groove formed on the sliding part, and a sealing ring sleeved on the annular groove. Furthermore, the anti-detachment structure includes: A connecting rod is formed at the end of the sliding portion, and the connecting rod extends out of another opening of the mounting cavity; It also includes an anti-detachment sleeve fitted onto the connecting rod.

[0013] Furthermore, the diameter of the connecting rod is smaller than the diameter of the sliding part, the elastic element is fitted onto the connecting rod, and both ends of the elastic element abut against the sliding part and the bottom of the assembly cavity, respectively.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a spring needle with sealing performance. During use, the sealing structure can seal the gap between the needle tube and the needle shaft, thereby preventing the smoke from the electronic cigarette from entering the spring needle through the gap and preventing the smoke from corroding and damaging the internal structure of the spring needle. At the same time, by setting an anti-detachment structure, the needle shaft can be effectively prevented from detaching from the needle tube, thereby ensuring that the spring needle has sufficient performance and service life. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model.

[0016] Figure 2 This is an exploded structural diagram of Embodiment 1 of the present invention.

[0017] Figure 3 This is a cross-sectional view of Embodiment 1 of the present utility model.

[0018] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention.

[0019] Figure 5 This is a schematic diagram of the exploded structure of Embodiment 2 of this utility model.

[0020] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention.

[0021] Figure 7 This is a structural schematic diagram of Embodiment 1 of the present invention in use.

[0022] Figure 8 This is a structural schematic diagram of Embodiment 2 of the present invention in use.

[0023] In the diagram: 100-Needle tube; 101-Assembly cavity; 102-Opening; 200-Needle shaft; 210-Abutting end; 220-Sliding part; 300-Elastic element; 103-Mounting groove; 104-Sealing ring; 105-Tube body; 106-Sleeve; 1061-Flange; 221-Mounting hole; 230-Connecting post; 231-Tail; 222-Annular groove; 223-Connecting rod; 224-Anti-detachment sleeve. Detailed Implementation

[0024] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention. The present invention will be described in detail below with reference to the accompanying drawings.

[0025] This utility model embodiment provides a spring needle with sealing performance. During use, the sealing structure can seal the gap between the needle tube 100 and the needle shaft 200, thereby preventing the smoke from the electronic cigarette from entering the spring needle along the gap and preventing the smoke from corroding and damaging the internal structure of the spring needle. At the same time, by setting an anti-detachment structure, the needle shaft 200 can be effectively prevented from detaching from the needle tube 100, thereby ensuring that the spring needle has sufficient performance and service life.

[0026] Example 1 like Figure 1-3 As shown in Figures 7 and 8, in this embodiment, a spring needle with sealing performance is provided, including a needle tube 100, a needle shaft 200, an elastic element 300, an anti-dislodgement structure, and a sealing structure. Specifically, an assembly cavity 101 is formed inside the needle tube 100 along its axial direction, and openings 102 are provided at both ends of the assembly cavity 101; the needle shaft 200 is slidably connected within the assembly cavity 101, and includes an abutment end 210 with one end extending out of the assembly cavity 101 and one end opening 102, and a sliding part 210 slidably connected within the assembly cavity 101. 20; The elastic element 300 is disposed within the assembly cavity 101, and the elastic element 300 acts between the needle tube 100 and the needle shaft 200 to provide an elastic thrust to the needle shaft 200 in the axial direction; the anti-disengagement structure is disposed on the sliding portion 220 of the needle shaft 200, and at least a portion of the anti-disengagement structure is disposed outside the assembly cavity 101 and has a diameter larger than the diameter of the assembly cavity 101; the sealing structure is disposed between the needle shaft 200 and the assembly cavity 101 to seal the gap between the needle shaft 200 and the assembly cavity 101.

[0027] During use, a sealing structure is installed between the needle shaft 200 and the assembly cavity 101 to seal the gap between them, preventing smoke from the electronic cigarette from entering the spring needle. Similarly, an anti-detachment structure at one end of the needle shaft 200 prevents it from falling out of the needle tube 100, thus ensuring the performance and lifespan of the spring needle. During the circuit connection process, such as... Figure 7As shown, the sliding part 220 of the needle shaft 200 slides along the inner wall of the assembly cavity 101. Under the elastic force of the elastic member 300, the abutting end 210 extends out at an opening 102 of the assembly cavity 101 to abut against an external connector, thereby establishing circuit connectivity and transmitting electrical signals. The external connector and the abutting end 210 press against each other, compressing the elastic member 300 and causing the needle shaft 200 to move into the assembly cavity 101. Under the elastic force of the elastic member 300, reliable abutment between the spring needle and the external connector is ensured, thus guaranteeing reliable transmission of electrical signals. During the transmission of electrical signals by the spring needle, the sealing structure seals the gap between the sliding part 220 and the assembly cavity 101, thereby effectively preventing the smoke generated by the electronic cigarette from entering the spring needle and causing corrosion inside the spring needle. When the spring needle is idle, the needle shaft 200 is elastically pushed outward of the assembly cavity 101 under the elastic thrust of the elastic element 300. The anti-disengagement structure at the end of the needle shaft 200 can limit the movement stroke of the needle shaft 200, thereby preventing the needle shaft 200 from being pushed out of the assembly cavity 101 under the elastic force of the elastic element 300, and ensuring the service life of the spring needle.

[0028] In this embodiment, the sealing structure includes a mounting groove 103 formed within the assembly cavity 101, and a sealing ring 104 disposed within the mounting groove 103. Furthermore, in this embodiment, the arrangement of the needle tube 100 facilitates the assembly and fixation of the sealing ring 104, such as... Figure 2-3 As shown, the needle tube 100 is configured as a split structure, including a tube body 105 and a sleeve 106. The tube body 105 has an internally formed assembly cavity 101. The sleeve 106 is an interference fit at one end of the tube body 105, and the tube body 105 has a port that communicates with the assembly cavity 101. The port has a flange 1061 that extends radially toward the axis. A space is provided between the flange 1061 and the end of the tube body 105. The space defines an installation groove 103, and a sealing ring 104 is engaged within the space. During the assembly of the needle tube 100, the sealing ring 104 is pre-filled into the sleeve 106, and the sealing ring 104 abuts against the flange 1061 and is restricted by the flange 1061. Then, one end of the tube body 105 is nested into the sleeve 106, so that the sealing ring 104 is clamped by the flange 1061 and the end of the tube body 105, thereby fixing the sealing ring 104 and achieving high stability, so that it will not be displaced during the operation of the needle shaft 200 and affect the sealing effect.

[0029] In this embodiment, to secure the sealing ring 104, the gap between the flange 1061 and the end of the tube body 105 is smaller than the wire diameter of the sealing ring 104. This structure allows the sealing ring 104 to be clamped and fixed. During clamping, the sealing ring 104 undergoes elastic deformation and protrudes towards the interior of the assembly cavity 101, thereby achieving tight contact with the sliding portion 220 of the needle shaft 200 and ensuring reliable sealing.

[0030] In this embodiment, the anti-detachment structure includes a mounting hole 221 formed in the sliding portion 220; it also includes a connecting post 230, wherein one end of the connecting post 230 is interference-fitted into the mounting hole 221, and the other end of the connecting post 230 extends out of the other end opening 102 of the assembly cavity 101, and is formed with a tail portion 231 larger than the diameter of the assembly cavity 101. Meanwhile, an elastic member 300 is sleeved on the connecting post 230, and both ends of the elastic member 300 abut against the bottom of the sliding portion 220 and the assembly cavity 101, respectively.

[0031] In this embodiment, the connecting post 230 forms part of the needle shaft 200, thereby improving the strength of the needle shaft 200. Furthermore, by providing the tail 231 of the connecting post, the needle shaft 200 can be prevented from being pushed out of the assembly cavity 101 by the elastic member 300, effectively ensuring the service life of the spring needle. Example 2 In this embodiment, the structure of the spring needle is largely the same as that of Embodiment 1, with the main difference being the specific mechanisms of the sealing structure and the anti-detachment structure.

[0032] like Figure 4-6 As shown in Figure 8, in this embodiment, the sealing structure includes an annular groove 222 formed on the sliding part 220, and a sealing ring 104 sleeved on the annular groove 222. That is, the sealing ring 104 is disposed on the sliding part 220, and the sliding part 220 moves within the assembly cavity 101, thereby sealing the sliding part 220 and the inner wall of the assembly cavity 101.

[0033] During signal transmission using the spring pin provided in this embodiment, such as Figure 8As shown, the external connector abuts and presses against the abutting end 210, thereby pressing the needle shaft 200 into the assembly cavity 101. At this time, the sealing ring 104 provided on the sliding part 220 closes the opening 102 at one end of the needle tube 100, thereby closing the assembly cavity 101. When the connector continues to press against the abutting end 210, the sealing ring 104 is embedded into the assembly cavity 101, thereby closing the gap between the sliding part 220 and the inner wall of the assembly cavity 101. Furthermore, the sealing performance between the sliding part 220 and the assembly cavity 101 is improved when the sealing ring 104 elastically deforms.

[0034] In this embodiment, the anti-detachment structure includes a connecting rod 223 formed at the end of the sliding portion 220, and the connecting rod 223 extends out of another opening 102 of the mounting cavity; it also includes an anti-detachment sleeve 224 sleeved on the connecting rod 223.

[0035] Meanwhile, the diameter of the connecting rod 223 is smaller than the diameter of the sliding part 220. The elastic element 300 is fitted onto the connecting rod 223, and both ends of the elastic element 300 abut against the sliding part 220 and the bottom of the assembly cavity 101, respectively.

[0036] In this embodiment, one end of the needle shaft 200 is extended to form a needle body that penetrates the assembly cavity 101. An anti-disengagement sleeve 224 is connected to the end of the connecting rod 223 that extends out of the assembly cavity 101 by an interference fit. This can limit the formation of the needle shaft 200 being elastically pushed out by the elastic member 300, prevent the needle shaft 200 from being pushed out of the assembly cavity 101, and thus ensure the performance of the spring needle.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A spring needle having sealing performance, characterized by, Including: A needle tube, wherein an assembly cavity is formed inside the needle tube along its axial direction, and both ends of the assembly cavity are provided with openings; The needle shaft is slidably connected within the assembly cavity, and includes an abutting end that extends out of the opening at one end of the assembly cavity and a sliding part that is slidably connected within the assembly cavity. An elastic element is disposed within the assembly cavity and acts between the needle tube and the needle shaft to provide an elastic thrust to the needle shaft in the axial direction. An anti-detachment structure is provided on the sliding part of the needle shaft, and at least a portion of the anti-detachment structure is provided outside the assembly cavity and has a diameter larger than the diameter of the assembly cavity; A sealing structure is provided between the needle shaft and the assembly cavity to seal the gap between the needle shaft and the assembly cavity.

2. The spring needle with sealing performance according to claim 1, characterized in that, The sealing structure includes a mounting groove formed within the assembly cavity and a sealing ring disposed within the mounting groove.

3. The spring needle with sealing performance according to claim 2, characterized in that, The syringe includes: A tube body, wherein the assembly cavity is formed inside the tube body; A sleeve is inserted into one end of a tube body with an interference fit. The tube body has a port that communicates with the assembly cavity. The port is formed with a flange that extends radially toward the axis. A space is provided between the flange and the end of the tube body. The space defines the mounting groove. The sealing ring is engaged within the space.

4. The spring needle with sealing performance according to claim 3, characterized in that, The gap between the flange and the end of the tube body is smaller than the wire diameter of the sealing ring.

5. The spring pin with sealing performance according to claim 2, characterized in that, The anti-detachment structure includes: A mounting hole is formed in the sliding part; One end of the connecting post is interference-fitted into the mounting hole, and the other end of the connecting post extends out of the other end opening of the assembly cavity and is formed with a tail that is larger than the diameter of the assembly cavity.

6. The spring needle with sealing performance according to claim 5, characterized in that, The elastic element is sleeved on the connecting post, and its two ends abut against the bottom of the sliding part and the assembly cavity, respectively.

7. The spring pin with sealing performance according to claim 1, characterized in that, The sealing structure includes an annular groove formed on the sliding part, and a sealing ring sleeved on the annular groove.

8. The spring needle with sealing performance according to claim 7, characterized in that, The anti-detachment structure includes: A connecting rod is formed at the end of the sliding portion, and the connecting rod extends out of another opening of the mounting cavity; It also includes an anti-detachment sleeve fitted onto the connecting rod.

9. The spring pin with sealing performance according to claim 8, characterized in that, The diameter of the connecting rod is smaller than the diameter of the sliding part. The elastic element is fitted onto the connecting rod, and both ends of the elastic element abut against the sliding part and the bottom of the assembly cavity, respectively.

Images