Connector with self-locking handle

Abstract

A connector with a self-locking handle comprises a shell, the shell is provided with an assembling groove and a wiring hole which are communicated, a wire clamping elastic piece, a conductive piece and an operating handle are detachably connected in the assembling groove, the positioning end of the wire clamping elastic piece is positioned in the assembling groove, and the wire clamping end of the wire clamping elastic piece is provided with a pull rod part. The pull rod part and the movable end are detachably connected and movably arranged, the movable end of the operation handle and the opposite side of the assembling groove are embedded in a concave-convex mode and are in rotating fit, and the operation handle rotates to the opening position or the closing position to drive the wire clamping end to deform and swing in the assembling groove. The movable end of the operating handle is provided with a movable space for the pull rod part to pass through. According to the connector with the self-locking handle, the self-locking and unlocking functions of the operating handle can be realized without adding a clamping and locking mechanism, the structure is simple, the operation is convenient, the operating handle, the wire clamping elastic sheet and the conductive piece can be inserted and assembled from the opening side of the assembling groove, the assembling difficulty is low, and the assembling efficiency of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a connector with a self-locking handle. Background Art

[0002] At present, connectors are indispensable components in electronic equipment. Existing connectors are usually used as wiring terminals and can be used for single-strand, multi-strand, fine multi-strand and other copper wires. They are an important connecting component for electrical connections and have been widely used in electrical equipment in various industries, such as electricity, petrochemicals, automatic control, machinery, photovoltaic power generation, communications, etc.

[0003] The existing connector includes an insulating housing, an electrical contact element and an elastic pressing piece assembled in the insulating housing, the insulating housing is rotatably connected with an operating member, and the operating member controls the elastic pressing piece to cooperate with the electrical contact element to clamp or release the wire. The existing connector usually sets a locking mechanism between the handle member and the inner cavity of the shell to achieve a self-locking function. For example, the Chinese utility model patent with the announcement number CN214203998U discloses a connecting device for connecting an electrical wire, including a housing with a socket, a spring element and a contact element, the clamping leg of the spring element has a first locking element and the contact element has a second locking element, wherein the first locking element and the second locking element are engaged with each other in the open position of the clamping leg so as to keep the clamping leg in the open position, and the flip element can be flipped by the action of the electrical wire when the electrical wire is inserted into the socket, thereby releasing the clamping leg to transfer to the contact position.

[0004] The problems existing in the use of existing connectors are:

[0005] 1. The locking mechanism is prone to getting stuck when locking or unlocking, which requires the wiring personnel to apply greater pressure to the operating member to drive the locking mechanism, which is inconvenient to operate.

[0006] 2. Since the connector has many parts and all the parts are located in the same cavity, the alignment assembly of the parts and the alignment assembly of the handle and the locking mechanism may interfere with each other, which increases the difficulty of assembling the connector, makes the installation complicated, and reduces the assembly efficiency of the connector. Utility Model Content

[0007] The purpose of the utility model is to solve the deficiencies of the above-mentioned technology and to provide a connector with a self-locking handle. The self-locking and unlocking functions of the operating handle can be realized without adding a locking mechanism. The structure is simple and the operation is convenient. The operating handle, the wire clamping spring and the conductive part can all be assembled from the opening side of the assembly groove. The assembly difficulty is low, thereby improving the assembly efficiency of the connector.

[0008] In order to solve the above technical problems, the technical solution of the utility model is: a connector with a self-locking handle, comprising a shell, the shell having a connected assembly groove and a wiring hole, the assembly groove is detachably connected with a wire clamping spring piece, a conductive member and an operating handle, the positioning end of the wire clamping spring piece is positioned in the assembly groove, the wire clamping end of the wire clamping spring piece is provided with a pull rod part, the pull rod part and the movable end of the operating handle are detachably connected and movably arranged, the movable end of the operating handle is concavely and convexly embedded with the opposite side of the assembly groove and rotatably matched, the operating handle is rotated to an open position or a closed position to drive the wire clamping end to deform and swing in the assembly groove, and the movable end of the operating handle has a movable space for the pull rod part to pass through;

[0009] When the operating handle rotates until the pull rod portion enters the movable space, the pull rod portion passes through the rotation axis of the movable end of the operating handle, and the pull rod portion applies pressure to the movable end of the operating handle, the movable end of the operating handle is in a torque balance and is in a static state, the operating handle remains in the open position, and the clamping end is separated from the conductive member;

[0010] When the operating handle rotates the pull rod portion to exit the movable space, the movable end of the operating handle is released from the static state, the operating handle is reset to the closed position, and the wire clamping end is close to the conductive member.

[0011] Preferably, the assembly groove is provided with a guide protrusion, and the operating handle is provided with a track groove, or the assembly groove is provided with a track groove, and the operating handle is provided with a guide protrusion, and the guide protrusion is pivotally combined in the track groove.

[0012] Preferably, the operating handle rotates along the guide profile of the assembly groove to an open position or a closed position, the upper portion of the guide profile has an opening stop wall for limiting the operating handle in the open position, the assembly groove has a closing stop wall, and the opening stop wall is arranged perpendicular to the closing stop wall.

[0013] Preferably, both sides of the clamping end in the width direction are bent with extension sections, and a rest section is integrally formed between the ends of the two extension sections. The extension section and the rest section form the pull rod portion, and the movable end of the operating handle is provided with at least one inverted hook portion, and the rest section is hooked with the inverted hook portion.

[0014] Preferably, the abutment section has an abutment surface inclined to the extension section; when the operating handle is in the open position, the inverted hook portion abuts against the abutment section, and the end surface of the inverted hook portion abuts against the abutment surface; when the operating handle is in the closed position, the inverted hook portion only abuts against the abutment section.

[0015] Preferably, the end of the operating handle away from the undercut portion extends to the outside of the shell.

[0016] Preferably, the conductive member and / or the assembly groove is provided with an avoidance track for movement of the corresponding extension section.

[0017] Preferably, the conductive member is provided with a first plug plate and a second plug plate at intervals, and the first plug plate is inserted into the assembly groove and cooperates with the wire clamping end to clamp or release the wire;

[0018] The contact surface between the assembly groove and the positioning end is provided with a slot, and the second plugging board is plugged into the slot and contacts the conductive member.

[0019] Preferably, the assembly groove is provided with a positioning structure, and the wire clamping spring is inserted into a positioning space between the positioning structure and the shell.

[0020] Preferably, it further comprises a closing cover, a plurality of positioning posts are arranged on the side of the housing close to the assembly groove, and the closing cover is penetrated with positioning holes for the positioning posts to be inserted into;

[0021] A locating groove for the locating column to be inserted into is formed on a side wall of the housing away from the assembling groove.

[0022] Compared with the prior art, the beneficial effects of the utility model are:

[0023] The utility model discloses a connector with a self-locking handle. When the operating handle is rotated to the open position, the pull rod part is driven by the movable end of the operating handle and enters the movable space. The movable end of the operating handle is in a torque balance and is in a static state. The operating handle is kept in the open position to realize the self-locking function of the operating handle. The wiring personnel only need to rotate the operating handle to disengage the pull rod part from the movable space, so that the operating handle can be reset to the closed position under the drive of the pull rod part. The utility model provides a connector with a self-locking handle. The self-locking and unlocking functions of the operating handle can be realized without adding a locking mechanism. The structure is simple and the operation is convenient. The operating handle, the wire clamping spring and the conductive part can all be assembled from the opening side of the assembly groove. The assembly difficulty is low, thereby improving the assembly efficiency of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of the connector in the embodiment is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of the connector in the embodiment is shown in FIG. Figure 2 ;

[0026] Figure 3 is a schematic structural diagram of the connector when the operating handle is in the closed position in the embodiment;

[0027] Figure 4 is a schematic diagram of the structure of the wire clamping spring when the operating handle is in the closed position in the embodiment;

[0028] Figure 5 is a schematic structural diagram of the connector when the operating handle is in the open position in the embodiment;

[0029] Figure 6 is a cross-sectional view of the connector when the operating handle is in the open position in the embodiment

[0030] Figure 7 Schematic diagram of the structure of the clamping spring when the operating handle is in the open position in the embodiment

[0031] Figure 8 is a schematic structural diagram of a housing in an embodiment;

[0032] Fig. 9 is an exploded view of the connector in the embodiment;

[0033] Fig.10 It is a schematic structural diagram of two adjacent connectors spliced ​​together in the embodiment.

[0034] In the figure: 1. wire; 2. shell; 3. assembly groove; 4. wiring hole; 5. wire clamping spring; 51. positioning end; 52. wire clamping end; 6. conductive member; 7. operating handle; 8. closing cover; 9. pull rod; 91. extension section; 92. abutment section; 10. activity space; 11. guide protrusion; 12. track groove; 13. guide profile; 14. opening retaining wall; 15. closing retaining wall; 16. undercut; 17. abutment surface; 18. avoidance track; 19. first plug board; 20. second plug board; 21. pin; 22. slot; 23. positioning structure; 24. positioning space; 25. positioning column; 26. positioning hole; 27. positioning groove. DETAILED DESCRIPTION

[0035] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0036] refer to Figures 1 to 10 A connector with a self-locking handle includes a housing 2 and a closing cover 8. The side wall of the housing 2 is provided with an assembly groove 3. The housing 2 is also provided with a wiring hole 4 communicating with the assembly groove 3. The wiring hole 4 is for inserting a wire 1. A wire clamping spring 5, an operating handle 7 and a conductive member 6 are detachably connected in the assembly groove 3.

[0037] The assembly groove 3 is provided with a positioning structure 23, and the wire clamping spring piece 5 is inserted into the positioning space 24 between the positioning structure 23 and the shell 2. The positioning space 24 is arc-shaped. The two ends of the wire clamping spring piece 5 are respectively a positioning end 51 and a wire clamping end 52. The upper side surface of the positioning end 51 abuts against and is positioned in the assembly groove 3, and the fixed wire clamping end 52 can swing back and forth in the assembly groove 3 along the positioning structure 23. The wire clamping end 52 is bent with an extension section 91 on both sides in the width direction, and the end of the extension section 91 is provided with an abutting section 92 extending along the width direction. The abutting end connects the ends of the two extension sections 91 to form a pull rod portion 9. Preferably, the pull rod portion 9 is an integrated structure formed by tearing and bending. The pull rod portion 9 is a U-shaped structure, and the hollow area of ​​the clamping rod portion is for the positioning end 51 to pass through.

[0038] The assembly groove 3 is provided with an arc-shaped guide protrusion 11, and the operating handle 7 is provided with an arc-shaped track groove 12. The guide protrusion 11 can be inserted into the track groove 12, and the guide protrusion 11 can be pivotally combined in the track groove 12 so that the movable end of the operating handle 7 is concavely embedded in the opposite side of the assembly groove 3 and rotatably matched. There is another embodiment of the movable end of the operating handle 7 and the assembly groove 3, in which the assembly groove 3 is provided with a track groove 12, and the operating handle 7 is provided with a guide protrusion 11.

[0039] The movable end of the operating handle 7 has two symmetrical hooks 16, which are made of metal material and are wrapped around the movable end of the operating handle 7. The operating handle 7 and the hooks 16 can be encapsulated by injection molding to achieve a fixed connection. Both hooks 16 are hooked at the abutting section 92 to achieve a detachable connection between the movable end of the operating handle 7 and the pull rod 9 and to enable the two to be movably arranged. The rotation direction of the movable end of the operating handle 7 is opposite to the rotation direction of the clamping end 52.

[0040] The side wall of the abutment section 92 close to the positioning end 51 has an abutment surface 17 inclined to the extension section 91. The connection between the hook portion 16 and the abutment section 92 can also limit the movement trajectory of the pull rod portion 9 relative to the hook portion 16 to ensure that when the movable end of the operating handle 7 is rotated to the open position, the end face of the hook portion 16 is tightly abutted against the abutment surface 17.

[0041] The conductive member 6 is provided with a first plug plate 19 and a second plug plate 20 at intervals, and the first plug plate 19 and the second plug plate 20 are both integrally formed with the conductive member 6. The first plug plate 19 is inserted into the assembly groove 3 and cooperates with the clamping end 52 to form a clamping channel for the wire 1 to enter, so as to clamp or release the wire 1. The assembly groove 3 and the contact surface of the positioning end 51 are provided with a slot 22, and the second plug plate 20 is plugged into the slot 22 and contacts the conductive member 6. The first plug plate 19 and the second plug plate 20 are both used to guide the alignment assembly of the conductive member 6 on the assembly groove 3, and the first plug plate 19 is formed with a pin 21, and the pin 21 extends out of the outer side of the housing 2.

[0042] The end of the operating handle 7 away from the hook portion 16 is the operating end, and the operating end extends to the outside of the housing 2, so that the wiring operator holds the operating handle 7 and rotates the operating handle 7 along the guide profile 13 of the assembly groove 3 to the open position or the closed position, thereby driving the clamping end 52 to deform and swing in the assembly groove 3. The conductive member 6 and the assembly groove 3 are both provided with an avoidance track 18 for the corresponding bending part of the extension section 91 to move, so as to avoid interference with the movement of the clamping end 52 and the pull rod portion 9. The movable end of the operating handle 7 has an active space 10 for avoiding the extension section 91 of the clamping rod portion.

[0043] The upper portion of the guide profile 13 has an opening baffle 14 , and the assembly groove 3 has a closing baffle 15 . The opening baffle 14 and the closing baffle 15 are used to limit the rotation angle of the operating handle 7 . Preferably, the opening baffle and the closing baffle 15 are vertically arranged.

[0044] refer to Figure 5 , Figure 6 , Figure 7When the operating handle 7 is rotated until the pull rod portion 9 enters the activity space 10, the operating handle 7 contacts the opening retaining wall 14, and the opening retaining wall 14 prevents the operating handle 7 from continuing to rotate upward so that the operating handle 7 is limited in the open position. The connecting portion between the extension section 91 and the clamping end 52 is deformed and opened, and the connecting portion between the clamping end 52 and the positioning section is deformed and closed. At this time, the inverted hook portion 16 is tightly pressed against the abutting section 92, and the end face of the inverted hook portion 16 is tightly pressed against the abutting surface 17. Under the action of the clamping spring piece 5, the first tendency force F1 and the second tendency force F2 transmitted to the abutting section 92 act on the inverted hook portion 16, and a certain angle is formed between the first tendency force F1 and the second tendency force F2, and the combined force of the two is F3. The guide protrusion 11 is tightly pressed against the track groove 12 to support the operating handle 7. The movable end of the operating handle 7, the contact surface between the movable end of the operating handle 7 and the inner groove wall of the assembly groove 3 and\or the contact surface between the guide protrusion 11 and the track groove 12 provide resistance to the movement of the movable end of the operating handle 7, and the resistance includes a first resistance f1 and a second resistance f2 acting on the abutment section 92 by the hook portion 16, the first resistance f1 and the second resistance f2 form a certain angle and the resultant force of the two is f3, the resultant force F3 and the resultant force f3 are the action force and the reaction force, and the resultant force f3 is equal to the resultant force F3, at this time, the movable end of the operating handle 7 is in a moment balance and is in a static state, the operating handle 7 is maintained in the open position, so that the operating handle 7 is self-locking after being rotated to the open position, and the clamping end 52 is separated from the first plug plate 19 of the conductive member 6 to form a clamping channel for the wire 1 to be connected or pulled out. Preferably, the contact surface between the guide protrusion 11 and the track groove 12 also provides friction to prevent the movable end of the operating handle 7 from leaving the open position, thereby allowing the operating handle 7 to remain in the open position more stably, avoiding the operating handle 7 from leaving the open position due to slight external impact or accidental touch by a person, so that the operating handle 7 can maintain a stable open state in the open position.

[0045] refer to Figure 3 , Figure 4The wiring operator applies pressure to the operating handle 7 to make it rotate. When the operating handle 7 rotates the pull rod part 9 to exit the activity space 10, the angle between the first tendency force F1 and the second tendency force F2 decreases, so that the combined force F3 of the first tendency force F1 and the second tendency force F2 increases. At this time, the active end of the operating handle 7 is released from the static state, the connection part between the extension section 91 and the clamping end 52 is restored to deformation, the connection part between the clamping end 52 and the positioning section is restored to deformation, and the clamping spring 5 is restored to deformation to drive the operating handle 7 to rotate. In this process, the guide protrusion 11 and the track groove 1 The contact friction between the two makes the rotation of the operating handle 7 more stable, until the operating handle 7 is reset to the closed position, the closing retaining wall 15 prevents the operating handle 7 from continuing to rotate downward and limits the operating handle 7 to the open position. At this time, the hook portion 16 is tightly against the abutting section 92, and the end face of the hook portion 16 is separated from the abutting surface 17. Under the action of the clamping spring 5, the pulling force transmitted to the abutting section 92 acts on the hook portion 16, so that the operating end of the operating handle 7 is tightly against the closing retaining wall 15, and the operating handle 7 maintains a stable closed state in the closed position. At this time, the clamping end 52 is close to the conductive member 6 and can apply a clamping force to the wire 1.

[0046] The connector can realize the self-locking and unlocking functions of the operating handle 7 without adding a locking mechanism, has a simple structure, and is easy to operate. The operating handle 7, the wire clamping spring 5, and the conductive member 6 can all be assembled from the opening side of the assembly groove 3, and the assembly difficulty is relatively low, thereby improving the assembly efficiency of the connector. The connector can be assembled in an automated assembly manner to enhance product competitiveness.

[0047] refer to Figure 1 , Figure 2 , Fig. 9 , Fig.10When assembling the connector, first insert the clamping spring piece 5 into the positioning space 24 between the positioning structure 23 and the housing 2, the avoidance track 18 of the assembly groove 3 and an extension section 91 of the clamping end 52 are matched with each other, and then the operating handle 7 and the assembly groove 3 are assembled by plugging the guide protrusion 11 and the track groove 12, and then the pull rod part 9 is moved by a tool such as a screwdriver to make it hooked with the two hook parts 16 of the movable end of the operating handle 7, and then the first plug plate 19 and the second plug plate 20 are respectively inserted into the assembly groove 3 and the slot 22. In this process, the tool can be used to pull the pull rod part 9 to make it hooked with the two hook parts 16 of the movable end of the operating handle 7. The clamping wire end 52 is moved or driven by the operating handle 7 so that a gap is reserved between the clamping wire end 52 and the assembly groove 3 for the first plug plate 19 to be inserted, so as to complete the assembly of the conductive member 6. A plurality of positioning posts 25 are provided on the side of the housing 2 close to the assembly groove 3. The positioning posts 25 have an outer convex portion. A plurality of positioning holes 26 are passed through the closing cover 8. Each positioning hole 26 corresponds to each positioning post 25 respectively. The corresponding positioning post 25 is inserted into the positioning hole 26 so that the closing cover 8 is assembled correspondingly to the housing 2, thereby closing the opening of the assembly groove 3 and completing the assembly operation of a single connector.

[0048] Preferably, before assembling the conductive member 6, the operating handle 7 may be moved to the open position, and the conductive member 6 may be installed after confirming that the self-locking function of the operating handle 7 can be realized, and the self-locking function of the operating handle 7 may be tested during the assembly process.

[0049] A plurality of positioning grooves 27 are provided on the side wall of the shell 2 away from the assembly groove 3, and each positioning groove 27 corresponds to each positioning column 25 respectively. The corresponding positioning column 25 is inserted into the positioning groove 27, and the shells 2 of two adjacent connectors can be spliced ​​together through the insertion connection between each positioning groove 27 and each positioning column 25, so that the second side of the front shell 2 closes the assembly groove 3 of the rear shell 2, thereby realizing the splicing of multiple connectors.

[0050] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A connector with a self-locking handle, comprising a housing (2), the housing (2) having a mounting groove (3) and a wiring hole (4) communicating with each other, a wire clamping spring (5), a conductive member (6) and an operating handle (7) being detachably connected in the mounting groove (3), wherein: The positioning end (51) of the clamping spring piece (5) is positioned in the assembly groove (3), and the clamping end (52) of the clamping spring piece (5) is provided with a pull rod portion (9). The pull rod portion (9) is detachably connected to the movable end of the operating handle (7) and is movably arranged. The movable end of the operating handle (7) is concavely and convexly embedded in the opposite side of the assembly groove (3) and is rotatably matched. The operating handle (7) is rotated to an open position or a closed position to drive the clamping end (52) to deform and swing in the assembly groove (3). The movable end of the operating handle (7) has a movable space (10) for the pull rod portion (9) to pass through. When the operating handle (7) is rotated until the pull rod portion (9) enters the movable space (10), the pull rod portion (9) passes through the rotation axis of the movable end of the operating handle (7), and the pull rod portion (9) applies pressure to the movable end of the operating handle (7), the movable end of the operating handle (7) is in a torque balance and is in a static state, the operating handle (7) remains in the open position, and the clamping end (52) is separated from the conductive member (6); When the operating handle (7) rotates the pull rod portion (9) to exit the movable space (10), the movable end of the operating handle (7) is released from the static state, the operating handle (7) is reset to the closed position, and the wire clamping end (52) is close to the conductive member (6).

2. A connector with a self-locking handle according to claim 1, characterized in that: The assembly groove (3) is provided with a guide protrusion (11), and the operating handle (7) is provided with a track groove (12), or the assembly groove (3) is provided with a track groove (12), and the operating handle (7) is provided with a guide protrusion (11), and the guide protrusion (11) can be pivotally combined in the track groove (12).

3. A connector with a self-locking handle according to claim 1 or 2, characterized in that: The operating handle (7) rotates along the guide profile (13) of the assembly groove (3) to an open position or a closed position; the upper portion of the guide profile (13) has an opening stop wall (14) for limiting the operating handle (7) in the open position; and the assembly groove (3) has a closing stop wall (15) for limiting the operating handle (7) in the closed position.

4. A connector with a self-locking handle according to claim 3, characterized in that: The clamping end (52) is provided with an extension section (91) on both sides in the width direction, and a supporting section (92) is integrally formed between the ends of the two extension sections (91). The extension section (91) and the supporting section (92) form the pull rod portion (9), and the movable end of the operating handle (7) is provided with at least one inverted hook portion (16), and the supporting section (92) is hooked with the inverted hook portion (16).

5. A connector with a self-locking handle according to claim 4, characterized in that: The abutment section (92) has an abutment surface (17) inclined to the extension section (91); when the operating handle (7) is in the open position, the inverted hook portion (16) abuts against the abutment section (92), and the end surface of the inverted hook portion (16) abuts against the abutment surface (17); when the operating handle (7) is in the closed position, the inverted hook portion (16) only abuts against the abutment section (92).

6. A connector with a self-locking handle according to claim 5, characterized in that: The end of the operating handle (7) away from the undercut portion (16) extends to the outside of the housing (2).

7. A connector with a self-locking handle according to claim 4, characterized in that: The conductive member (6) and / or the assembly groove (3) is provided with an avoidance track (18) for the corresponding extension section (91) to move.

8. A connector with a self-locking handle according to claim 1 or 7, characterized in that: The conductive member (6) is provided with a first plug plate (19) and a second plug plate (20) at intervals, and the first plug plate (19) is inserted into the assembly groove (3) and cooperates with the wire clamping end (52) to clamp or release the wire (1); The contact surface between the assembly groove (3) and the positioning end (51) is provided with a slot (22), and the second plug board (20) is plugged into the slot (22) and contacts the conductive member (6).

9. A connector with a self-locking handle according to claim 1, characterized in that: The assembly groove (3) is provided with a positioning structure (23), and the wire clamping spring (5) is inserted into a positioning space (24) between the positioning structure (23) and the housing (2).

10. A connector with a self-locking handle according to claim 1, characterized in that: It also comprises a closing cover (8), a plurality of positioning posts (25) are arranged on the side of the housing (2) close to the assembly groove (3), and the closing cover (8) is penetrated by positioning holes (26) for the positioning posts (25) to be inserted into; A positioning groove (27) for the positioning column (25) to be inserted into is formed on the side wall of the housing (2) away from the assembly groove (3).

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