Waterproof charging spring ejector pin

Abstract

The utility model provides a waterproof charging spring ejector pin which comprises a rubber core, a plurality of sets of needle tubes are installed in the rubber core, needle shafts which are in axial vertical sliding connection are installed in the needle tubes, springs are arranged at the joints of the lower ends of the needle shafts and the needle tubes, threads are arranged at the top ends of the needle tubes, and the top ends of the needle tubes are connected with sealing sleeves through the threads. A through hole allowing the needle shaft to move up and down is formed in the top end of the sealing sleeve, a first sealing ring is fixedly installed in the through hole, and the inner side of the first sealing ring is attached to the outer side of the needle shaft. According to the spring ejector pin, the thread is arranged at the top end of the needle tube, rapid connection with the sealing sleeve can be achieved, the top of the joint of the needle shaft and the needle tube is effectively sealed through the first sealing ring in the sealing sleeve, water is prevented from entering the needle tube along the outer side of the needle shaft, internal parts are prevented from being oxidized and corroded, and the service life of the spring ejector pin is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of spring ejector pins, and more specifically, particularly relates to a waterproof charging spring ejector pin. Background Art

[0002] The spring ejector pin, also known as the pogo pin, is a precision connector used in electronic products such as mobile phones. It is widely used in semiconductor equipment for electrical connection.

[0003] The existing spring ejector generally consists of three parts, namely the needle shaft, the needle tube and the spring. Usually, the needle shaft, the needle tube and the spring are riveted together by precision instruments. The needle shaft, the needle tube and the spring are coaxial, and at least a part of the spring and the needle shaft are located in the needle tube. The bottom end of the needle tube is closed, and the top end has a through hole for the needle shaft head to pass through. The spring is usually a precision spring.

[0004] The current spring ejector pin does not have a waterproof function, and the internal parts are easily oxidized, which affects its service life. Therefore, in view of this, the existing structure and defects are studied and improved to provide a waterproof charging spring ejector pin, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a waterproof charging spring ejector pin, which is achieved by the following specific technical means:

[0006] A waterproof charging spring thimble comprises a rubber core, wherein a plurality of needle tubes are installed inside the rubber core, wherein a needle shaft axially connected for upward and downward sliding is installed inside the needle tube, a spring is provided at the connection between the lower end of the needle shaft and the needle tube, a thread is provided at the top end of the needle tube, and a sealing sleeve is connected to the needle tube via the thread, a through hole is provided at the top end of the sealing sleeve for the needle shaft to move up and down, and a sealing ring 1 is fixedly installed inside the through hole, and the inner side of the sealing ring 1 fits with the outer side of the needle shaft.

[0007] Furthermore, a fixing frame is provided at the bottom end of the rubber core, and a second sealing ring is installed on the inner side of the fixing frame.

[0008] Furthermore, the vertical height of the sealing ring 2 is greater than the height of the fixed frame.

[0009] Furthermore, the bottom ends of the plurality of needle tubes are all arranged in the inner area of ​​the second sealing ring.

[0010] Furthermore, connecting lugs are provided on both the left and right sides of the rubber core, and countersunk holes for installing fasteners are provided on the connecting lugs.

[0011] Furthermore, a fixing groove for fixing the sealing ring 1 is arranged inside the through hole of the sealing sleeve.

[0012] Furthermore, the sealing sleeve is made of insulating plastic material.

[0013] Furthermore, the outer side of the sealing sleeve is provided with anti-slip texture.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model provides a thread on the top of the needle tube, which can be quickly connected to the sealing sleeve, so as to effectively seal the top of the connection between the needle shaft and the needle tube with the help of the sealing ring 1 inside the sealing sleeve, so as to prevent water from entering the inside of the needle tube along the outside of the needle shaft, avoid oxidation corrosion of internal parts, and improve the service life of the spring ejector pin. At the same time, by providing a fixing frame on the bottom side of the rubber core, the sealing ring 2 can be quickly fixed and installed, so as to improve the sealing between the bottom of the rubber core and the circuit board when the rubber core and the circuit board are installed, so as to further improve the waterproof and dustproof performance, and facilitate safe and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a sectional schematic diagram of the utility model.

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0019] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0020] 1. Rubber core; 2. Needle tube; 3. Sealing sleeve; 4. Sealing ring 1; 5. Spring; 6. Sealing ring 2; 7. Needle shaft;

[0021] 101. fixing frame; 102. connecting lug. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention 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 operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To Attachment Figure 3 As shown:

[0027] The utility model provides a waterproof charging spring thimble, comprising a rubber core 1, wherein a plurality of needle tubes 2 are installed inside the rubber core 1, wherein a needle shaft 7 axially connected for upward and downward sliding is installed inside the needle tube 2, a spring 5 is provided at the connection between the lower end of the needle shaft 7 and the needle tube 2, a thread is provided at the top end of the needle tube 2, and a sealing sleeve 3 is connected to the top end of the needle tube 2 through the thread, a through hole is provided at the top end of the sealing sleeve 3 for the needle shaft 7 to move up and down, and a sealing ring 4 is fixedly installed inside the through hole, and the inner side of the sealing ring 4 is in contact with the outer side of the needle shaft 7.

[0028] Among them, a fixing frame 101 is provided at the bottom end of the rubber core 1, and a sealing ring 6 is installed on the inner side of the fixing frame 101. By providing the fixing frame 101 on the bottom side of the rubber core 1, the sealing ring 6 can be quickly fixed and installed, so that when the rubber core 1 and the circuit board are installed, the sealing between the bottom of the rubber core 1 and the circuit board can be improved, so as to further improve the waterproof and dustproof performance, which is conducive to safe and stable operation.

[0029] The vertical height of the second sealing ring 6 is greater than the height of the fixing frame 101. Through this arrangement, when the rubber core 1 is fixed to the circuit board, the second sealing ring 6 can be squeezed first to achieve a good sealing effect.

[0030] Among them, the bottom ends of the multiple groups of needle tubes 2 are all arranged in the inner area of ​​the sealing ring 2 6.

[0031] The left and right sides of the rubber core 1 are both provided with connecting lugs 102, and the connecting lugs 102 are provided with countersunk holes for installing fasteners. The setting of the connecting lugs 102 can facilitate the rapid and stable installation of the rubber core 1 and the circuit board.

[0032] Among them, a fixing groove for fixing the sealing ring 4 is arranged on the inner side of the through hole of the sealing sleeve 3. The setting of the fixing groove can improve the installation stability of the sealing ring 4 to prevent the sealing ring 4 from being offset when the needle shaft 7 moves up and down.

[0033] The sealing sleeve 3 is made of insulating plastic material.

[0034] The outer side of the sealing sleeve 3 is provided with anti-skid textures, and the anti-skid textures are provided so that the sealing sleeve 3 can be quickly driven to connect to the top end of the needle tube 2 during production and assembly.

[0035] The working principle of this embodiment is as follows: by setting a thread at the top of the needle tube 2, a quick connection with the sealing sleeve 3 can be achieved, and with the help of the sealing ring 1 4 inside the sealing sleeve 3, the top of the connection between the needle shaft 7 and the needle tube 2 is effectively sealed to prevent water from entering the inside of the needle tube 2 along the outside of the needle shaft 7, avoid oxidation and corrosion of the internal parts of the needle tube 2, and improve the service life of the spring ejector. At the same time, by setting a fixing frame 101 on the bottom side of the rubber core 1, the sealing ring 2 6 can be quickly fixed and installed, so that when the rubber core 1 is installed with the circuit board, the sealing between the bottom of the rubber core 1 and the circuit board can be improved, so as to further improve the waterproof and dustproof performance, which is conducive to safe and stable operation.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A waterproof charging spring ejector, comprising a rubber core (1), wherein a plurality of needle tubes (2) are installed inside the rubber core (1), wherein a needle shaft (7) connected axially up and down and slidingly connected is installed inside the needle tube (2), and a spring (5) is provided at the connection between the lower end of the needle shaft (7) and the needle tube (2), characterized in that: The top end of the needle tube (2) is provided with a thread and is connected to a sealing sleeve (3) via the thread; the top end of the sealing sleeve (3) is provided with a through hole for the needle shaft (7) to move up and down, and a sealing ring (4) is fixedly installed inside the through hole, and the inner side of the sealing ring (4) is in contact with the outer side of the needle shaft (7).

2. The waterproof charging spring ejector according to claim 1, characterized in that: A fixing frame (101) is provided at the bottom end of the rubber core (1), and a second sealing ring (6) is installed on the inner side of the fixing frame (101).

3. The waterproof charging spring ejector as claimed in claim 2, characterized in that: The vertical height of the second sealing ring (6) is greater than the height of the fixed frame (101).

4. The waterproof charging spring ejector as claimed in claim 2, characterized in that: The bottom ends of the plurality of needle tubes (2) are all arranged in the inner area of ​​the second sealing ring (6).

5. The waterproof charging spring ejector according to claim 1, characterized in that: The left and right sides of the rubber core (1) are both provided with connecting lugs (102), and the connecting lugs (102) are provided with countersunk holes for installing fasteners.

6. The waterproof charging spring ejector according to claim 1, characterized in that: A fixing groove for fixing a sealing ring (4) is arranged inside the through hole of the sealing sleeve (3).

7. The waterproof charging spring ejector according to claim 1, characterized in that: The sealing sleeve (3) is made of insulating plastic material.

8. The waterproof charging spring ejector according to claim 1, characterized in that: The outer sides of the sealing sleeves (3) are provided with anti-slip textures.

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