Winding locking torsion spring jack

Abstract

The utility model relates to the technical field of torsion spring jacks, in particular to a winding locking torsion spring jack, which comprises a shell with a plugging port, a torsion spring and a rotary cover, the torsion spring is composed of a plurality of elastic column strips, and the torsion spring is inserted in the shell and abuts against the inner wall of the shell; one end of the torsion spring is connected to the shell, the other end of the torsion spring is connected to the rotary cover, the rotary cover is rotatably connected to the insertion port, the rotary cover is provided with an insertion hole and at least one fixing piece used for being fixed to the shell, and the fixing piece is connected with the shell. The rotating cover is twisted to drive the torsion spring to rotate, so that the elastic column strip is tightly wound on the contact pin, then the rotating cover is fixed by the fixing piece, and the torsion spring is kept in a screwed state. The problem that the elastic performance of metal in the prior art is reduced is avoided, and the contact reliability of the contact pin is improved through a winding mode.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion spring jacks, in particular to a winding and locking torsion spring jack. Background Art

[0002] With the development of the economy, various electrical appliances have appeared on the market, and the required input and output power is getting larger and larger. When designing pins and sockets for high-current connectors, the sockets are generally designed as a grid-type contact method of torsion springs. The torsion spring structure is formed by bending metal sheets and works by its own elastic properties. If the number of plugging and unplugging is too many or other factors are affected, it is easy to cause the elastic properties of the metal to decrease, resulting in poor contact of the charging equipment and a safety hazard. Utility Model Content

[0003] In order to solve the problems in the above-mentioned background technology, the utility model provides a winding and locking torsion spring socket, which avoids the problem of poor contact caused by the decrease of elastic properties by winding and locking the pin without relying on the elastic properties of the metal itself.

[0004] The solution adopted by the utility model to solve its technical problems is: a winding and locking torsion spring socket, including a shell, the shell has an insertion interface, the winding and locking torsion spring socket also includes a torsion spring and a rotating cover, the torsion spring is composed of a plurality of elastic columns, the torsion spring is inserted in the shell and abuts against the inner wall of the shell; the other end of the torsion spring is connected to the rotating cover, the rotating cover is rotatably connected to the insertion interface, the rotating cover is provided with a socket and at least one fixing member for fixing to the shell, and the fixing member is connected to the shell.

[0005] By adopting the above-mentioned scheme, rotating the rotating cover can drive the torsion spring to rotate, so that the torsion spring is tightly wound around the pin and fixed by a fixing piece, which solves the problem of poor contact caused by the reduced elastic properties of the elastic metal parts in the torsion spring socket in a convenient and simple way.

[0006] Furthermore, the torsion spring also includes a first fixing ring and a second fixing ring, the first fixing ring and the second fixing ring are respectively connected to two ends of the elastic column, the first fixing ring abuts against the inner wall of the shell, and the second fixing ring is fixedly connected to the rotating cover.

[0007] By adopting the above solution, the contact area of ​​the torsion spring can be increased, and the torsion spring can also be disassembled separately for easy replacement.

[0008] Furthermore, a fastening rubber ring is provided at the outer peripheral side wall of the first fixing ring, and a fastening groove is provided at a position of the inner wall of the shell corresponding to the first fixing ring, and the fastening rubber ring is embedded in the fastening groove.

[0009] Furthermore, limiting blocks are equidistantly arranged on the top of the second fixing ring, the second fixing ring is inserted into the rotating cover, and limiting grooves adapted to the limiting blocks are arranged on the inner wall of the rotating cover, and the limiting blocks are inserted into the limiting grooves.

[0010] By adopting the above technical solution, after the torsion spring is installed, the two ends of the torsion spring can be fixed to the shell and the rotating cover respectively, thereby ensuring the stability of the torsion spring after installation and maintaining elasticity, ensuring a stable connection after the pin is plugged in, and preventing the pin from being pulled out of the shell when it is pulled out.

[0011] Furthermore, a plurality of locking holes for fixing the fixing member are provided at equal distances on the periphery of the shell plug interface, and the rotating cover is provided with a through hole, and the fixing member is inserted into the locking hole through the through hole.

[0012] By adopting the above-mentioned solution, the rotating cover can be locked by the fixing member, thereby maintaining the tightened state of the torsion spring to prevent poor contact.

[0013] Furthermore, the fixing member includes a locking portion and an unlocking portion, the locking portion is arranged at a position corresponding to the through hole, and the locking portion is connected to the shell through the through hole; the unlocking portion is fixedly connected to the rotating portion and the unlocking portion is snap-connected to the locking portion.

[0014] By adopting the above solution, the rotating cover can be quickly fixed or loosened, and the operation is simple.

[0015] Furthermore, a slot is provided on the periphery of the rotating cover, and a flange adapted to the slot is provided on the outer shell. The rotating cover is rotatably connected to the outer shell, and the rotating cover is connected to the second fixing ring.

[0016] By adopting the above solution, the rotating cover is fixed on the housing to prevent the rotating cover from falling when the fixing member is not locked.

[0017] Furthermore, the elastic columns are equidistantly and obliquely arranged in parallel on the first fixing ring and the second fixing ring; the first fixing ring is connected to the bottom of the housing plug interface; and the second fixing ring is fixedly connected to the rotating cover.

[0018] By adopting the above solution, the inclined elastic column makes it easier to wind the pins, shortens the winding distance, and makes the operation easier.

[0019] In summary, the beneficial effects of the utility model are as follows: by twisting the rotating cover, the torsion spring is driven to rotate, so that the elastic column is tightly wound around the pin, and then the rotating cover is fixed by the fixing member to keep the torsion spring in a tightened state. The problem of the prior art that the elastic properties of metal will decrease is avoided, and the reliability of the pin contact is improved by winding.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of this embodiment;

[0022] Figure 2 is a cross-sectional view of this embodiment;

[0023] Figure 3 Schematic diagram of the torsion spring structure of this embodiment;

[0024] Figure 4 is a schematic diagram of the fixing structure of this embodiment;

[0025] Figure 5 This is a schematic diagram of the fixing structure of the rotating cover of this embodiment;

[0026] Figure 6 For this embodiment Figure 5 A partial enlarged view of point A in the middle.

[0027] In the figure: 1, rotating cover; 11, limiting groove; 12, card slot; 2, torsion spring; 3, plug interface; 31, flange; 4, shell; 41, fastening groove; 5, fixing piece; 6, locking hole; 21, first fixing ring; 211, fastening rubber ring; 22, elastic column; 23, second fixing ring; 231, limiting block; 51, unlocking part; 52, locking part. DETAILED DESCRIPTION

[0028] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0029] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0030] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0031] like Figure 1 and Figure 2 As shown, a socket for winding and locking a torsion spring 2 includes a shell 4 with an insertion port 3, a torsion spring 2 and a rotating cover 1. In this embodiment, the torsion spring 2 is composed of a plurality of elastic columns 22, which are inserted into the shell 4 and abut against the inner wall of the shell 4. The connection with the bottom of the insertion port 3 cannot rotate, but it can move relatively with the side wall. The other end of the torsion spring 2 is connected to the rotating cover 1 for rotation. When the rotating cover 1 is twisted, the internal torsion spring 2 also twists. In addition, the rotating cover 1 is rotatably connected to the insertion port 3. The rotating cover 1 is provided with a socket and at least one fixing member 5 for fixing to the shell 4, wherein the socket can be passed through by a pin. The fixing member 5 can fix the rotating cover 1 to prevent relative rotation with the shell 4. The fixing member 5 is connected to the shell 4.

[0032] like Figure 2 and Figure 3 As shown, optionally, the torsion spring 2 includes a first fixing ring 21 and a second fixing ring 23 respectively connected to the two ends of the elastic column 22, wherein the first fixing ring 21 is fixedly abutted against the inner wall of the outer shell 4, and the second fixing ring 23 is fixedly connected to the rotating cover 1, and the fixing ring can increase the contact area of ​​the torsion spring 2, and can also be disassembled separately for easy replacement.

[0033] like Figure 2 and Figure 3As shown, a fastening rubber ring 211 is provided at the outer peripheral side wall of the first fixing ring 21 of this embodiment, and a fastening groove 41 is provided at the position of the inner wall of the shell 4 corresponding to the first fixing ring 21. The fastening rubber ring 211 is embedded and installed in the fastening groove 41, so that after the torsion spring 2 is installed, the bottom of the torsion spring 2 can improve the connection strength with the shell through the fastening rubber ring 211 and the fastening groove 41, so that the torsion spring 2 is fixed in the shell to avoid falling out and affecting the connection; and, a limiting block 231 is equidistantly provided on the top of the second fixing ring 23 of this embodiment, and the second fixing ring 23 is plugged into the rotating cover 1 A limiting groove 11 adapted to the limiting block 231 is provided on the inner wall of the rotating cover 1, and the limiting block 231 is inserted into the limiting groove 11, so that after the rotating cover 1 is closed, the rotation of the torsion spring 2 can be limited, thereby ensuring the torsional strength of the torsion spring 2, and further improving the stability of the pin after connection; through the above structure, this embodiment enables the torsion spring 2 to be installed, and the two ends of the torsion spring 2 can be respectively fixed to the shell and the rotating cover 1, thereby ensuring the stability of the torsion spring 2 after installation, and maintaining elasticity, ensuring the stable connection of the pin after insertion, and preventing the pin from being brought out of the shell when being pulled out.

[0034] like Figure 1 As shown, in this embodiment, the peripheral edge of the plug interface 3 of the housing 4 is provided with a plurality of locking holes 6 at equal distances for fixing the fixing member 5, and the rotating cover 1 is provided with a through hole, and the fixing member 5 is inserted into the locking hole 6 through the through hole to fix the rotating cover 1. The rotating cover 1 can be locked by the fixing member 5, thereby maintaining the tightened state of the torsion spring 2 to prevent poor contact.

[0035] like Figure 4 As shown, optionally, the fixing member 5 includes a locking portion 52 and an unlocking portion 51, the locking portion 52 is arranged at a position corresponding to the through hole, the locking portion 52 is locked and connected to the housing 4 through the through hole, wherein the unlocking portion 51 is fixedly connected to the rotating portion and the locking portion 52 is snap-connected to the locking portion 52. The locking portion 52 can fix the rotating cover 1 on the housing 4 and cannot rotate, and the snap connection can quickly fix or release the rotating cover 1, which is easy to operate.

[0036] like Figure 5 to Figure 6 As shown, the rotating cover 1 of this embodiment is provided with a card slot 12 on its periphery, and a flange 31 adapted to the card slot 12 is provided on the shell 4. The rotating cover 1 and the shell 4 are connected together through the card slot 12 and the flange 31 and can rotate relative to each other. In addition, the rotating cover 1 is fixedly connected to the second fixing ring 23. The function of the card slot 12 is mainly to prevent the rotating cover 1 from falling when the fixing member 5 is not locked.

[0037] Optionally, the elastic columns 22 are equidistantly and parallelly arranged on the first fixing ring 21 and the second fixing ring 23, the first fixing ring 21 is connected to the bottom of the plug interface 3 of the housing 4, and the second fixing ring 23 is fixedly connected to the rotating cover 1. The inclined elastic columns 22 facilitate winding of the pins and shorten the winding distance.

[0038] In summary, the beneficial effects of this embodiment are as follows: this embodiment twists the elastic column 22 so that the elastic column 22 is tightly wound around the pin, thereby achieving close contact with the pin and also playing a fixing function, wherein the rotating cover 1 plays a role in driving the elastic column 22 to rotate and fix, and keeps the torsion spring 2 in a tightened state. This embodiment avoids the problem of the prior art that the elastic properties of metal will decrease, and improves the reliability of the pin contact by winding, and the service life is also improved accordingly.

[0039] The embodiments described above are only preferred implementation modes of the present utility model and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model shall fall within the protection scope of the present utility model.

Claims

1. A winding and locking torsion spring jack, comprising a housing (4), wherein the housing (4) has an insertion interface (3), characterized in that: The winding and locking torsion spring (2) insertion hole also includes a torsion spring (2) and a rotating cover (1); the torsion spring (2) is composed of a plurality of elastic columns (22); the torsion spring (2) is inserted into the shell (4) and abuts against the inner wall of the shell (4); the other end of the torsion spring (2) is connected to the rotating cover (1); the rotating cover (1) is rotatably connected to the insertion port (3); the rotating cover (1) is provided with a insertion hole and at least one fixing member (5) for fixing on the shell (4); the fixing member (5) is connected to the shell (4).

2. A winding and locking torsion spring jack according to claim 1, characterized in that: The torsion spring (2) further comprises a first fixing ring (21), a second fixing ring (23) and elastic columns (22) which are equidistantly and obliquely arranged in parallel between the first fixing ring (21) and the second fixing ring (23); the first fixing ring (21) abuts against the inner wall of the outer shell (4); and the second fixing ring (23) is fixedly connected to the rotating cover (1).

3. A winding and locking torsion spring jack according to claim 2, characterized in that: A fastening rubber ring (211) is provided on the outer peripheral side wall of the first fixing ring (21), and a fastening groove (41) is provided at a position of the inner wall of the housing (4) corresponding to the first fixing ring (21), and the fastening rubber ring (211) is embedded in the fastening groove (41).

4. A winding and locking torsion spring jack according to claim 2, characterized in that: Limiting blocks (231) are equidistantly arranged on the top of the second fixing ring (23); the second fixing ring (23) is inserted into the rotating cover (1); a limiting groove (11) adapted to the limiting block (231) is provided on the inner wall of the rotating cover (1); and the limiting block (231) is inserted into the limiting groove (11).

5. The winding and locking torsion spring jack according to claim 2, characterized in that: The housing (4) is provided with a plurality of locking holes (6) at equal distances around the periphery of the plug interface (3) for fixing the fixing member (5), and the rotating cover (1) is provided with a through hole, through which the fixing member is inserted into the locking hole (6).

6. A winding and locking torsion spring jack according to claim 5, characterized in that: The fixing member comprises a locking portion (52) and an unlocking portion (51); the locking portion (52) is arranged at a position corresponding to the through hole, and the locking portion (52) is connected to the housing (4) through the through hole; the unlocking portion (51) is fixedly connected to the rotating cover (1), and the unlocking portion (51) is snap-connected to the locking portion (52).

7. A winding and locking torsion spring jack according to claim 6, characterized in that: The rotating cover (1) is provided with a slot (12) on its periphery, the outer shell (4) is provided with a flange (31) adapted to the slot (12), the rotating cover (1) and the outer shell (4) are rotatably connected, and the rotating cover (1) is connected to the second fixing ring (23).

Images