An elastic spring claw jack

Abstract

The present invention relates to an elastic spring claw socket, comprising a rear sleeve and a spring claw assembled in the rear sleeve socket. The rear sleeve socket is provided with a limiting step I for limiting the rear end of the spring claw and a trapezoidal limiting step II cooperating with a waisted portion in the middle of the spring claw. The spring claw comprises an end band and a plurality of elastic spring leaves connected to the end band, spaced apart. The middle portion of the spring leaves is waisted, and the rear ends of the spring leaves expand outward relative to the waisted portion of the spring leaves. The waisted portion of the spring leaves is further provided with an outwardly protruding protrusion for increasing the reliability of the electrical connection between the spring claw and the rear sleeve. The rear end of the spring leaves is limited between limiting step I and trapezoidal limiting step II. The waisted portion of the spring leaves is surrounded by the trapezoidal limiting step II and is limited by the trapezoidal limiting step II to prevent the spring claw from falling out during insertion and removal from a pin. The present invention can achieve efficient assembly of the spring claw, save assembly time, and improve the insertion and removal life of the socket while ensuring electrical connection reliability.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, in particular to an elastic spring claw socket. Background Art

[0002] A spring-claw jack, where the connector in the jack is designed as a spring-claw, creates an electrical connection when the pin is inserted into the jack. Existing crown spring or spring-claw jacks use methods such as reducing the diameter of the opening, machining, closing the opening, or installing a retaining ring on the opening to reduce the diameter of the opening to smaller than the inner diameter of the sleeve. This prevents the crown spring and spring claw from dislodging during insertion. This structure is cumbersome and time-consuming to assemble. Existing crown spring jacks also generally have a short lifespan and are not resistant to oblique insertion and removal. After repeated insertion and removal, the spring claw's grip on the pin decreases, reducing the stability of the connection and causing significant wear on the pin. Summary of the Invention

[0003] In order to overcome the above-mentioned defects, the present invention provides an elastic spring claw socket, which realizes efficient assembly of the spring claw by changing the structural design, saves assembly time, and improves the plugging and unplugging life and resistance to oblique plugging and unplugging of the socket while meeting the reliability of electrical connection.

[0004] The present invention solves its technical problem by adopting the following technical solutions. According to the elastic spring claw socket proposed by the present invention, it includes a rear sleeve and a spring claw assembled in the rear sleeve socket, wherein the socket of the rear sleeve is provided with a limiting step I for limiting the tail end of the spring claw and a trapezoidal limiting step II cooperating with the waisted part in the middle of the spring claw. The spring claw includes an end band and a plurality of elastic spring leaves connected to the end band and arranged at intervals. The middle part of the spring leaf is waisted, and the middle waisted part is also provided with a protrusion protruding toward the outside of the spring claw for increasing the reliability of the electrical connection between the spring claw and the rear sleeve. The tail end of the spring leaf is limited between the limiting step I and the trapezoidal limiting step II. The middle waisted part of the spring leaf is surrounded by the trapezoidal limiting step II and is limited by the trapezoidal limiting step II when plugging and unplugging with the pin to prevent the spring claw from falling out.

[0005] Furthermore, the waisted portion in the middle of the spring includes a first inclined surface, a second inclined surface and a platform located between the first inclined surface and the second inclined surface, and the protrusion is arranged on the platform.

[0006] Furthermore, the protrusion and the platform are integrated to increase the strength of the spring leaf and thus improve the plug-in resistance of the spring claw.

[0007] Furthermore, the tail ends of the plurality of spring leaves arranged at intervals are distributed in a circular shape to form a spring claw tail end, and the diameter of the spring claw tail end is the same as or slightly larger than the diameter of the end band.

[0008] Furthermore, when the pinhole is inserted into the pinhole, the interference fit between the pin and the spring claw makes the protrusion in close contact with the rear sleeve, thereby ensuring the reliability of the electrical connection between the spring claw and the rear sleeve, and increasing the self-locking force between the waisted part in the middle of the spring leaf and the trapezoidal limit step II.

[0009] Compared with the prior art, the present invention has the following advantages:

[0010] The present invention can ensure the reliability of the electrical connection between the spring claw and the back sleeve by arranging a protrusion on the waisted part in the middle of the spring piece, and at the same time enhance the plug-in resistance of the spring claw, thereby increasing the service life of the spring claw. By arranging a trapezoidal limiting step II inside the back sleeve that matches the waisted part in the middle of the spring piece, the self-locking force between the spring claw and the back sleeve is ensured, thereby preventing the spring claw from falling out during the plug-in and pull-out process. The present invention improves the oblique plug-in resistance of the socket by adding a boss in the middle of the spring claw. In addition, the present invention does not need to block the spring claw by means of orifice diameter reduction, machining, closing or orifice assembly retaining ring, thereby achieving efficient assembly of the spring claw, saving assembly time, and improving the plug-in and pull-out life of the socket while meeting the reliability of the electrical connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a partial cross-sectional view of the present invention.

[0012] Figure 2 yes Figure 1 Right view of .

[0013] Figure 3 yes Figure 1 Left view of .

[0014] Figure 4 It is a structural diagram of the spring claw.

[0015] Figure 5 yes Figure 4 Left view of .

[0016]

Components and symbols

[0017] 1: back cover, 2: spring claw, 3: limit step I, 4: limit step II, 5: end band, 6: reed, 7: tail end of reed, 8: first inclined surface, 9: second inclined surface, 10: platform, 11: protrusion, 12: opening, 13: inclined surface I, 14: inclined surface II, 15: interval between reeds. DETAILED DESCRIPTION

[0018] To further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to the embodiments.

[0019] It should be noted that the terms "front end" and "rear end" used in the present invention to indicate the position are based on the position or location relationship shown in the figure, and are only used to facilitate the description of the present invention, and therefore should not be understood as limiting the present invention. Figure 1 and Figure 4 The left end of the "tail end" refers to Figure 1 and Figure 4 The right end of .

[0020] like Figure 1 As shown, the spring claw socket of the present invention includes a rear sleeve 1 and a spring claw 2 assembled in the rear sleeve, and the socket of the rear sleeve is provided with a limiting step Ⅰ3 for limiting the tail end of the spring claw and a trapezoidal limiting step Ⅱ4 matched with the waist of the middle part of the spring claw. The spring claw includes a rolled and open end band 5 and a plurality of elastic spring leaves 6 connected to the end band and arranged at intervals. The cross section of the inner cavity of the spring claw is circular for insertion with the insertion needle. The middle part of the spring is waisted, and the tail end 7 of the spring expands outward relative to the middle part of the spring. The tail ends of the multiple spaced-apart springs are distributed in a circle to form a barrel-shaped spring claw tail end, and the diameter of the spring claw tail end is the same as or slightly larger than the diameter of the end band; the waisted middle part of the spring includes a first inclined surface 8, a second inclined surface 9 and a platform 10 located between the first inclined surface and the second inclined surface. The platform is also provided with a protrusion 11 protruding toward the outside of the spring claw for increasing the reliability of the electrical connection between the spring claw and the back sleeve. The protrusion and the platform are integrated to increase the strength of the spring, so that the spring claw is not easily deformed after multiple plugging and unplugging, thereby improving the plugging and unplugging resistance of the spring claw.

[0021] When the spring claw of the present invention is assembled with the back sleeve, the tail end 7 of the spring claw is elastically squeezed and then installed into the socket of the back sleeve. Since the spring leaf has a certain elasticity, after being assembled in place, the tail end of the spring leaf springs open and is limited between the limit step I and the trapezoidal limit step II. The waisted portion in the middle of the spring claw is surrounded by the trapezoidal limit step II. An opening 12 is provided in the middle of the end band of the spring claw to provide a certain deformation space to facilitate the assembly of the end band at the front end of the trapezoidal limit step II. After the spring claw is assembled in place, since the end band is assembled in the socket after a slight compression deformation, the end band has a certain elastic expansion force, which makes the end band fit tightly against the inner wall of the back sleeve socket. Similarly, the tail end of the spring leaf also fits tightly against the inner wall of the rear end of the back sleeve socket. When the pinholes are not inserted into each other, the waisted portion and protrusion in the middle of the spring claw do not contact the trapezoidal limit step II. After the pin is inserted into the spring claw of the jack, the pin and the spring claw have an interference fit. Under the pressure of the pin, the elastic force of the spring claw increases to achieve contact between the spring claw and the back sleeve, and increase the self-locking force between the spring claw and the back sleeve. The waisted part in the middle of the spring leaf elastically expands and deforms so that the protrusion is in close contact with the platform on the trapezoidal limit step II, thereby ensuring the reliability of the electrical connection. During the plugging and unplugging process, the first inclined surface 8 and the second inclined surface 9 of the waisted part in the middle of the spring leaf are respectively limited by the inclined surface I13 and the inclined surface II14 on the trapezoidal limit step II, thereby ensuring that the spring claw does not fall out during the plugging and unplugging process.

[0022] Preferably, the angles between the first inclined surface 8 and the second inclined surface 9 on the spring claw and the central axis of the spring claw are both 45°.

[0023] On the one hand, the protrusion on the spring claw can ensure the reliability of the electrical connection between the spring claw and the back sleeve. On the other hand, it can improve the strength of the spring leaf, making the spring leaf less likely to deform after multiple plugging and unplugging, thereby improving the oblique plugging and unplugging resistance of the spring claw socket.

[0024] The spring claw of the present invention is an elastic part, and the spring claw part can be formed by stamping and rolling. After the spring claw is rolled, the middle part is a waisted structure, and the waisted part has a certain elasticity, which can achieve reliable contact with the pin. When the spring claw is installed in the corresponding back sleeve socket, it has an interference fit with the back sleeve socket, thereby achieving electrical contact between the spring claw and the back sleeve. The present invention does not need to block the spring claw by means of hole diameter reduction, machining, closing or hole assembly retaining ring, etc. The spring claw is self-locked by cooperating with the waisted part in the middle of the spring leaf and the trapezoidal limit step II to prevent the spring claw from falling out during the plugging and unplugging process. By providing a protrusion on the spring leaf at the waisted part in the middle, the spring claw socket can meet the reliability of electrical connection while improving the plugging and unplugging life and resistance to oblique plugging and unplugging of the socket.

[0025] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any simple modification, equivalent change and modification made by any technician familiar with the profession to the above embodiment based on the technical essence of the present invention without departing from the scope of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. An elastic spring claw socket, comprising a rear sleeve and a spring claw assembled in the rear sleeve socket, characterized in that The socket of the rear sleeve is provided with a limiting step I for limiting the tail end of the spring claw and a trapezoidal limiting step II cooperating with the waisted part in the middle of the spring claw. The spring claw includes a rolled and open end band and a plurality of elastic spring leaves connected to the end band. The middle part of the spring leaf is waisted. The middle waisted part includes a first inclined surface, a second inclined surface and a platform located between the first inclined surface and the second inclined surface. The platform is provided with a protrusion protruding toward the outside of the spring claw for increasing the reliability of the electrical connection between the spring claw and the rear sleeve. The tail end of the spring leaf expands outward relative to the middle part of the spring leaf. The tail ends of the plurality of spaced spring leaves are circularly distributed to form a barrel shape and are limited between the limiting step I and the trapezoidal limiting step II. The end band and the tail end of the spring leaf are tightly fitted to the inner wall of the socket of the rear sleeve, and the middle waisted parts of the plurality of spring leaves are surrounded by the trapezoidal limiting step II. During the plugging and unplugging process, the first inclined surface and the second inclined surface of the middle waisted part of the spring leaf are respectively limited by the inclined surface I and the inclined surface II on the trapezoidal limiting step II to ensure that the spring claw does not fall out during the plugging and unplugging process.

2. The elastic spring claw socket according to claim 1, characterized in that The protrusion and the platform are integrated to increase the strength of the spring leaf and thus improve the resistance of the spring claw to plugging and unplugging.

3. The elastic spring claw socket according to claim 1, characterized in that The tail ends of the plurality of spring pieces arranged at intervals are distributed in a circle to form a barrel-shaped spring claw tail end, and the diameter of the spring claw tail end is the same as or slightly larger than the diameter of the end band.

4. The elastic spring claw socket according to claim 1, characterized in that When the pinhole is inserted into the pinhole, the interference fit between the pin and the spring claw makes the protrusion in close contact with the back sleeve, thereby ensuring the reliability of the electrical connection between the spring claw and the back sleeve, and increasing the self-locking force between the middle waist part of the spring leaf and the trapezoidal limit step II.

5. The elastic spring claw socket according to claim 1, characterized in that The included angles between the first inclined surface and the second inclined surface on the spring claw and the central axis of the spring claw are all 45 degrees.

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