Handle terminal

Abstract

The utility model discloses a handle terminal, which comprises an insulating seat, a turning piece, a conductive terminal and a clamping elastic piece, in the process that the head end part of a force application arm rod rotates from an initial position to an unlocking position, a pressing block pushes a movable elastic arm to partially move relative to the conductive terminal at a jack so as to release the blocking of the jack; according to the scheme, the structure of the handle terminal is redesigned, the pivoting part is arranged on one side of the movable elastic arm, the structure is beneficial for prolonging the length of the arm of force, and the operation of the arm lever is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of wiring devices, in particular to a handle terminal. Background Art

[0002] Wiring terminals are widely used in the field of mechanical engineering. Common structures include a combination of an insulating seat, a conductive terminal, a handle (also known as a lever), and a clamping spring. The clamping spring is composed of a movable spring arm, a fixed section, and a bent section connecting the two. In the initial position, the movable spring arm in the clamping spring cooperates with the conductive terminal to block the jack on the insulating seat. The jack is used for inserting cables, etc. By rotating the handle, the pressure block pushes the movable spring arm to move to release the blockade of the jack. After that, the cable can be inserted from the jack, and a clamp is formed after the movable spring arm is reset. Specifically, the solution disclosed in the CN214898904U patent has the following defects: in this solution, the pivot center of the handle is between the head end of the handle and the pressure block, and the pivot center is in the ring mouth of the bent section of the clamping spring. The force arm is short, and a large force is required to operate the handle, which is inconvenient to use and needs to be improved. Utility Model Content

[0003] To solve at least one of the above technical deficiencies, the present invention provides the following technical solutions:

[0004] The present application document discloses a handle terminal, including an insulating seat, a turning member, a conductive terminal, and a clamping spring. The insulating seat is provided with a chamber and an opening groove and a socket are provided on the peripheral wall thereof. The clamping spring is provided in the chamber of the insulating seat and the conductive terminal is at least partially in the chamber. The clamping spring has a movable spring arm, a fixed section and a bending section connecting the two. The movable spring arm in the initial position cooperates with the conductive terminal at the socket to block the socket. The turning member has an arm, a pivot portion, and a pressing block. The arm rod in the chamber is provided with pivoting parts and pressure blocks at intervals along its length extension direction. The arm rod is pivotally connected to the cavity wall of the chamber through the pivoting part and the head end of the arm rod is located at the opening groove. The pivoting part is located on one side of the movable elastic arm and the movable elastic arm is located on the moving path of the pressure block. In the process of applying force to the head end of the arm rod to rotate it from the initial position to the unlocked position, the pressure block pushes the movable elastic arm to move relative to the conductive terminal part at the socket to release the blockage of the socket, and the bending section is deformed synchronously during the movement of the movable elastic arm.

[0005] In this solution, the structure of the handle terminal is redesigned, and the pivotal portion is placed on one side of the movable elastic arm. This structure helps to extend the length of the force arm and saves effort in operating the arm.

[0006] When the handle terminal is used, if the movable elastic arm in the initial position extends into the socket and its end abuts the conductive terminal part at the socket, the socket is blocked by the movable elastic arm, that is, the socket is blocked. Force is applied to the head end of the arm rod at the opening slot to rotate the pull member, and the pressing block simultaneously pushes the movable elastic arm to move, causing its end to gradually move away from the conductive terminal part at the socket, and the movable elastic arm releases the blockage of the socket, that is, the blockage of the socket is released. At this time, a cable can be inserted from the socket hole to the abutment point between the end of the movable elastic arm and the conductive terminal part at the socket. After the external force is removed, the bending section is restored and the movable elastic arm is reset. The reset movable elastic arm pushes the pressing block to reset the arm rod. The reset end of the movable elastic arm cooperates with the conductive terminal part at the socket to clamp the cable between the two. The handle terminal is easy to operate.

[0007] The position of the pivotal portion can be such that the pivotal portion and the pressing block are on the same side or on opposite sides, such as between the pressing block and the end of the arm. The distance between the pivotal portion and the pressing block can be selected according to needs, and the closer the pivotal portion is to the pressing block, the more labor-saving it is.

[0008] Preferably, the pressure block is located between the pivotal portion and the head end of the arm, and the pivotal portion and the pressure block are located on the same side of the arm. The pressure block being located between the pivotal portion and the arm helps to extend the force arm, making operation more labor-saving. The layout in which the pressure block is placed on the same side of the pivotal portion is more conducive to cooperation with the clamping spring and facilitates rapid assembly.

[0009] Furthermore, a guide arc groove is provided on the side of the conductive terminal part in the chamber, and the tail end of the arm is located in the guide arc groove. The guide arc groove supports the tail end of the arm during the rotation of the tail end of the arm. Adding the guide arc groove to assist in the rotation of the guide arm helps to improve the stability of the structure.

[0010] As for the conductive terminal, the structure of the conductive terminal can be selected according to needs, and the conductive terminal can be fully or partially located within the insulating seat cavity. Preferably, the conductive terminal includes a conductive body and a conductive pin connected thereto, the conductive body being located within the cavity of the insulating seat, the conductive body including a front guide piece, a rear guide piece, and a side guide piece connecting the two, the movable spring arm cooperates with the front guide piece to block the insertion hole, and the top surface of the side guide piece is provided with a guide arc groove, the conductive pin can be located within the cavity or extend from the cavity, and the guide groove formed on the side guide piece facilitates cooperation with the arm rod, which helps to simplify the structure.

[0011] Furthermore, the top surface of the side guide piece of the conductive terminal is bent and a guide arc groove is formed on the bent surface. Increasing the bent surface helps to increase the contact area with the tail end of the arm and the pivot part, further improving the stability of the structure.

[0012] Furthermore, the head end of the arm rod extends from the open slot, and a protrusion for preventing hand-beating is provided on the side of the open slot and on the shell wall adjacent to the initial position of the head end of the arm rod. The protrusion is on the moving path of the head end of the arm rod. In the process of the movable spring arm pushing the arm rod to return to the initial position, the head end of the arm rod hits the protrusion to slow down the return speed.

[0013] When in use, force is generally applied to the front end of the arm with the fingers. When the fingers are withdrawn, the movable spring arm pushes the arm to reset quickly. If the fingers are withdrawn slowly, the hand may be hit by the front end of the arm. In this solution, a bump is added to the moving path of the front end of the arm. When the front end of the arm moves to the unlocked position, the front end of the arm abuts against the bump and deforms to pass over the bump. When the front end of the arm resets, it hits the bump to be blocked and slow down the speed, thereby reducing the hand-hitting phenomenon and making it safer to use.

[0014] For the pivotal connection, an axis can be formed on the side of the arm to be inserted into the slot at the cavity wall to form a pivot connection, or an axis hole can be formed on the side of the arm to facilitate the insertion of the axis at the cavity wall to form a pivot connection, or an axis can be formed on the side of the arm, with the axis as the pivotal connection, and an axial hole can be formed at the end of the axis to facilitate the insertion of the axis at the cavity wall to form a pivot connection, etc. The appropriate pivotal connection structure can be selected according to needs.

[0015] Preferably, a shaft body is formed outwardly at the side surface of the tail end of the arm rod, and the shaft body is used as the pivot part. A pivot groove is provided at the wall of the chamber, and the end of the shaft body extends into the pivot groove to form a pivot connection. The protruding shaft body forms a pivot part, which is more convenient to assemble, and with the support of the pivot groove wall, it helps to further improve the structural stability of the pivot part.

[0016] Furthermore, it also includes a support member, which is located at the cavity wall above the movable elastic arm and on one side of the pressure block. When the arm rod rotates to the unlocked position, the support member supports the pressure block in the direction of the force applied by the movable elastic arm to the pressure block.

[0017] When in the unlocked position, the movable elastic arm exerts a large force on the pressing block, which may easily cause the pressing block to deform or break. In response to this, a support member is added in this solution to assist in supporting the pressing block. The structural stability of the pressing block is increased under this structure, which helps to extend the service life of the handle terminal.

[0018] Furthermore, when the arm is rotated to the unlocked position, the support member is at least partially located between the pivot portion and the pressing block, so that the support member portion located between the two supports the pressing block. The support member is integrally formed in the cavity wall to help simplify the structure.

[0019] The support member can be fixed to the cavity wall after being independently formed, or can be integrally formed on the cavity wall of the insulating seat, depending on the needs.

[0020] Furthermore, the support member is integrally formed at the cavity wall of the chamber, and the support member extends along the moving path of the pressure block. The support member supports the pressure block during the movement of the pressure block. The support member extends along the moving path of the pressure block, and the two are parallel. Therefore, the support member supports the pressure block throughout the movement of the pressure block, which helps to improve the structural stability of the pressure block.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The utility model improves the position of the pivot part, which helps to extend the lever arm and saves more effort in operation.

[0023] 2. The present invention adds a support member to support the pressing block, thereby helping to improve the structural stability of the pressing block and extend the service life of the terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the structure of the handle terminal in Example 1;

[0026] Figure 2 yes Figure 1 Schematic diagram of the structure after removing the cover;

[0027] Figure 3 yes Figure 1 Schematic diagram of the structure after removing the turning piece;

[0028] Figure 4 Schematic diagram of the cross-sectional structure of the handle terminal in Example 1;

[0029] Figure 5 This is a schematic structural diagram of the rotating member in Example 1;

[0030] Figure 6 This is a schematic diagram of the unlocking process of the handle terminal in Example 1;

[0031] Wherein, the accompanying drawings are marked as follows:

[0032] 1. Insulating seat; 2. Turning piece; 3. Clamping spring; 4. Conductive terminal; 5. Support member; 6. Protrusion; 20. Arm; 21. Arm head; 22. Pressing block; 23. Pivot portion; 31. Bending section; 32. Movable spring arm; 33. Fixed section; 34. Lower part; 41. Conductive pin; 42. Conductive body; 100. Chamber; 101. Opening slot; 102. Insertion hole; 103. Pivot slot; 104. Cover plate; 421. Front guide plate; 422. Side guide plate; 423. Rear blade; 424. Guide arc slot. DETAILED DESCRIPTION

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0034] Example 1

[0035] In this example, a handle terminal includes an insulating seat 1, a turning member 2, a conductive terminal 4, and a clamping spring 3. The common configuration of the insulating seat is a single rectangular seat with a preformed cavity inside, the side of the seat is open and closed with a cover 104, or a configuration such as Figure 1 、 Figure 2 As shown, a plurality of base bodies are arranged side by side and the side openings of the base bodies at the sides are closed by a cover plate 104, and the side openings of the base bodies are used for installing internal components.

[0036] The insulating seat body peripheral wall is formed with an opening slot and a jack connected to the cavity, and the docking cable extends into the jack. If the opening slot and the jack are on the same side or adjacent sides, Figure 1 、 Figure 2 As shown, the opening slot 101 and the insertion hole 102 are located on adjacent surfaces of the insulating seat 1. The clamping spring 3 is installed in the cavity 100 of the seat body, and the conductive terminal 4 is at least partially located in the cavity 100 for connecting the cable. The clamping spring 3 includes a movable spring arm 32, a fixed section 33 and a bending section 31 connecting the two. Figure 4 、 Figure 3 As shown, the clamping spring is in a U-shaped shape. In the initial position, the end of the movable spring arm 32 abuts against the conductive terminal 4 at the socket 102, and the movable spring arm 32 blocks the socket 102 to form a blockade. Figure 4 、 Figure 3 As shown, when docking into the seat cavity 100, the bent section 31 is sleeved on the protruding shaft formed on the cavity wall, and the fixed section is connected to the conductive terminal part in the cavity.

[0037] The pull member 2 includes an arm 20, a pivot portion 23, and a pressing block 22. The rear end of the arm 20 is located in the seat cavity 100 of the insulating seat 1, and the front end of the arm 20 is located in the opening groove or as shown in FIG. Figure 1 As shown, the arm head end 21 extends from the opening slot 101, and the configuration of the arm head end 21 can be selected according to the needs, such as Figure 1、 Figure 2 、 Figure 5 The front end portion 21 of the arm is convex at the side to expand the contact area with the fingers, and a plurality of convex ridges can be formed on the top surface of the front end portion 21 of the arm to facilitate force application.

[0038] The arm 20 in the chamber 100 is formed with pivoting portions 23 and pressing blocks 22 spaced apart along its length. Figure 2 、 Figure 4 、 Figure 5 As shown, in this example, the pressing block 22 is located between the pivot portion 23 and the end portion 21 of the arm, the pressing block 22 and the pivot portion 23 are located on the same side of the arm 20, and the pivot portion 23 and the pressing block 22 are both located on one side of the movable elastic arm 32. Figure 4 In the state shown, the pivoting portion 23 and the pressing block 22 are both above the lower portion 34 of the movable elastic arm 32. The arm 20 is pivotally connected to the cavity wall of the insulating seat 1 through the pivoting portion 23. The pivoting portion 23 is separated from the bent section 31 of the clamping spring 3. The movable elastic arm 32 is in the moving path of the pressing block 22. Compared with the solution disclosed in CN214898904U in which the pivoting portion is located at the ring opening of the bent section of the clamping spring, when the arm rotates around the axial center of the pivoting portion, the structure of this solution extends the force arm while keeping the arm length unchanged, which saves more effort when the finger pushes the head end of the arm. Figure 4 As shown, in this example, the pressing block 22 and the pivot portion 23 are placed adjacent to each other, which makes the operation of the arm more labor-saving.

[0039] For the pivotal connection, the side of the arm may be formed into a shaft body, with the shaft body serving as the pivotal connection 23. A socket may be formed along the axial direction at the end of the pivotal connection 23. The shaft body protruding from the cavity wall of the insulating seat 1 is inserted into the socket of the pivotal connection 23 to form a pivotal connection. Preferably, a groove, i.e., a pivot groove 103, is formed in the cavity wall of the insulating seat 1. The end of the pivotal connection 23 extends into the pivot groove 103 for pivotal engagement. Supported by the walls of the pivot groove 103, this helps improve the structural stability of the pivotal connection. Furthermore, a notch may be formed in the walls of the pivot groove to facilitate insertion of the pivotal connection.

[0040] In order to further improve the stability of the arm's rotation, in this example, an arc-shaped groove for guidance, namely a guide arc groove 424, is formed on the side of the conductive terminal portion in the chamber 100. The tail end of the arm 20 is located in the guide arc groove 424, and the guide arc groove 424 assists in guiding the arm's rotation. Specifically, as shown in FIG. Figure 2 、 Figure 3As shown, the conductive terminal 4 includes a conductive body 42 and a conductive pin 41 connected thereto. The conductive body 42 is located within the cavity of the insulating base 1. The conductive body 42 includes a front guide piece 421, a rear guide piece 423, and a side guide piece 422 connecting the front guide piece 421 and the rear guide piece 423. The front guide piece 421 is located within the insertion hole 102. The conductive pin 41 connected to the front guide piece 421 extends from a hole in the wall of the insertion hole 102 to the outside of the insulating base 1. The end of the movable elastic arm 32 abuts against the front guide piece 421 to cooperate with the insertion hole 102. The side guide piece 422 is formed on the side of the front guide piece 421. The top surface of the side guide piece 422 is formed with an arc groove, namely, a guide arc groove 424. The rear end of the arm 20 is formed with a protruding pivot portion 23. The bottom wall of the rear end of the arm 20 is also arc-shaped and is located in the guide arc groove 424. The guide arc groove assists in guiding the arm's rotation during rotation.

[0041] In addition, the top surface of the side guide piece 422 of the conductive terminal 4 can be bent inward to form a guide arc groove at the bent surface. The tail end of the arm and the side pivot part are both in the guide arc groove. Increasing the bent surface helps to increase the contact area, thereby improving the stability of the arm operation.

[0042] Conventional terminals may cause the arm to reset too quickly during use, resulting in hand-hitting. To address this issue, a bump is added in this example to prevent hand-hitting. Figure 3 、 Figure 4 As shown, the arm head end 21 extends from the open slot 101. A protruding bump 6 is formed on the side of the open slot 101 and adjacent to the seat wall at the initial position of the arm head end, such as a common arc-shaped protrusion. The protrusion 6 is in the movement path of the arm head end 21, such as the movement path of the protruding portion on the side of the arm head end. During use, the arm head end is generally applied with a finger. During the movement of the arm head end to the unlocked position, the arm head end abuts the protrusion and deforms to pass over the protrusion. When the finger is removed, the movable spring arm pushes the arm back to the initial position. During the reset process, the arm head end hits the protrusion 6 to slow down the reset speed, which helps to reduce the hand-beating phenomenon. In addition, a groove can be formed on the bottom surface of the arm head end 21. During the arm reset process, the bottom surface of the arm head end first hits the protrusion, and then rises until the protrusion is placed in the groove. Under the continued push of the movable spring arm, the arm head end continues to move, and the groove and the protrusion are separated. Adding a groove helps to better slow down the speed.

[0043] In addition, the width of the slot opening can be limited, such as by guiding the movement of the arm through the slot opening wall, which helps to improve stability.

[0044] When the arm is in the unlocked position, the movable spring arm exerts a large force on the pressing block, which may easily lead to deformation and damage of the pressing block under long-term use. In this case, a support member is added. Figure 4In the state shown, the support member 5 is located at the cavity wall above the lower portion 34 of the movable elastic arm 32 and at one side of the pressing block 22. When the arm 20 rotates to the unlocked position, as shown in FIG. Figure 6 In the figure on the right side, the pressing block 22 is located above the support member 5, and the movable elastic arm 32 exerts force on the pressing block 22 below ( Figure 6 The support member 5 supports the pressing block 22.

[0045] like Figure 2 、 Figure 3 、 Figure 4 As shown, the pressing block 22 is located between the pivoting portion 23 at the rear end of the arm 20 and the front end 21 of the arm. Figure 6 When in the unlocked position shown, the end of the support member 5 extends at least to between the pressure block 22 and the pivot portion 23, and the movable elastic arm 32 applies pressure to the pressure block 22. The support member 5 supports the pressure block 22 to prevent the pressure block from deforming. At the same time, the pivot portion 23 also provides auxiliary support to the support member 5, which helps to improve the structural stability of the pressure block.

[0046] Of course, the support member 5 can also extend along the moving path of the pressing block 22, such as Figure 6 The arc-shaped strip shown in the figure supports the pressing block 22 throughout its movement, thereby further improving the structural stability of the pressing block.

[0047] As for the support member, it can be fixed on the cavity wall after being independently formed, or as shown in this example, the support member 5 can be integrally formed on the cavity wall of the insulating seat, depending on the needs.

[0048] like Figure 6 As shown, when the arm 20 is in the initial position, the broken arm of the movable elastic arm 32 abuts against the conductive terminal at the socket to block the socket. When the finger applies force to push the front end of the arm 20 to move, the pressing block 22 moves synchronously, and the pressing block 22 pushes the movable elastic arm 32 to rotate relative to the bending section. The front end of the arm 20 passes over the anti-beater protrusion 6 to the unlocking position, and the pressing block 22 pushes the movable elastic arm 32 to the predetermined position. The socket blockage is released, and the support member 5 supports the pressing block 22. At this time, the cable can be inserted from the socket to the position where the end of the movable elastic arm 32 abuts the conductive terminal in the initial position. The external force applied to the front end of the arm by the finger is removed, and the reset movable elastic arm 32 pushes the arm 20 to reset. During the reset process, the front end of the arm hits the anti-beater protrusion 6 to slow down the speed, and then gradually resets to the initial position. The corresponding end of the movable elastic arm cooperates with the conductive terminal to clamp the cable.

[0049] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A handle terminal, comprising an insulating seat (1), a turning member (2), a conductive terminal (4), and a clamping spring (3), wherein the insulating seat (1) is provided with a chamber and an opening groove (101) and a socket (102) communicating with the chamber are provided on the peripheral wall thereof, the clamping spring (3) is provided in the chamber of the insulating seat (1) and the conductive terminal (4) is at least partially located in the chamber (100), the clamping spring (3) has a movable spring arm (32), a fixed section (33) and a bending section (31) connecting the two, and the movable spring arm (32) in the initial position is fixed to the fixed section (33) and the bending section (31) connecting the two. The movable arm (32) cooperates with the conductive terminal (4) at the socket (102) to block the socket (102), and the rotating member (2) has an arm (20), a pivot portion (23), and a pressure block (22). The arm (20) in the chamber (100) is provided with the pivot portion (23) and the pressure block (22) at intervals along the length extension direction thereof. The arm (20) is pivotally connected to the cavity wall of the chamber (100) through the pivot portion (23) and the arm head end portion (21) is located at the opening groove (101), characterized in that: The pivoting portion (23) is located on one side of the movable elastic arm (32) and the movable elastic arm (32) is located on the moving path of the pressing block (22). During the process of the force arm head end rotating from the initial position to the unlocking position, the pressing block pushes the movable elastic arm to move relative to the conductive terminal portion at the socket to release the blockage of the socket, and the bending section is deformed synchronously during the movement of the movable elastic arm.

2. A handle terminal according to claim 1, characterized in that: The pressing block (22) is located between the pivoting portion (23) and the arm head end portion (21), and the pivoting portion (23) and the pressing block (22) are located on the same side of the arm (20).

3. The handle terminal according to claim 1, characterized in that: A guide arc groove (424) is provided on the side of the conductive terminal (4) in the chamber (100), and the tail end of the arm (20) is located in the guide arc groove (424). The guide arc groove supports the tail end of the arm during its rotation.

4. A handle terminal according to claim 3, characterized in that: The conductive terminal (4) includes a conductive body (42) and a conductive pin (41) connected thereto. The conductive body (42) is located in a cavity (100) of an insulating seat (1). The conductive body (42) includes a front guide piece (421), a rear guide piece (423), and a side guide piece (422) connecting the two. The movable elastic arm (32) cooperates with the front guide piece (421) to block the socket (102). A guide arc groove (424) is provided on the top surface of the side guide piece (422).

5. The handle terminal according to claim 3, characterized in that: The top surface of the side guide piece (422) of the conductive terminal (4) is bent, and a guide arc groove (424) is formed on the bent surface.

6. The handle terminal according to claim 1, characterized in that: The head end of the arm rod extends from the open slot, and a protrusion for preventing hand-beaters is provided on the side of the open slot and on the shell wall adjacent to the initial position of the head end of the arm rod. The protrusion is on the moving path of the head end of the arm rod. When the movable elastic arm pushes the arm rod to return to the initial position, the head end of the arm rod hits the protrusion to slow down the return speed.

7. The handle terminal according to claim 1, characterized in that: A shaft body is formed on the side surface of the tail end of the arm (20), and the shaft body serves as a pivot portion (23). A pivot groove (103) is provided on the wall of the chamber (100), and the end of the shaft body extends into the pivot groove to form a pivot connection.

8. A handle terminal according to any one of claims 1 to 7, characterized in that: The invention also includes a support member (5), which is located at the cavity wall above the movable elastic arm (32) and at one side of the pressing block (22). When the arm (20) rotates to the unlocking position, the support member (5) supports the pressing block (22) in the direction in which the movable elastic arm (32) applies force to the pressing block (22).

9. The handle terminal according to claim 8, characterized in that: When the arm (20) rotates to the unlocking position, the support member (5) is at least partially located between the pivoting portion (23) and the pressing block (22), so that the portion of the support member located between the two supports the pressing block.

10. The handle terminal according to claim 8, characterized in that: The support member (5) is integrally formed on the cavity wall of the chamber (100), and the support member (5) extends along the moving path of the pressing block (22). The support member supports the pressing block during its movement.

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