Wiring terminal with pull-back type wire clamping function
By designing a terminal block with a threaded compression knob and a locking mechanism, the problem of needing tools to open the plug hole in the prior art is solved, achieving convenience and safety for users to directly plug in wires and fix them in place.
Patent Information
- Application Number
- CN202423185049.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing spring-loaded terminal blocks have their insertion holes closed at the factory and require a specific tool to open, making it difficult for users to directly insert wires.
A terminal block is designed that includes a housing, a conductive sheet, a pull-back assembly, a threaded compression knob, and a locking assembly. The opening and closing of the pull-back clamp bracket is controlled by rotating the threaded compression knob, thereby realizing the automatic opening and closing of the insertion hole.
Users can directly plug in the wires at the factory. After plugging in the wires, they can clamp and fix the wires by rotating the threaded compression knob to prevent them from loosening or falling off, thus reducing the risk of short circuits and fire.
Smart Images
Figure CN223729123U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of connector, especially relates to a back-pulling type wire clamping wiring terminal. BACKGROUND
[0002] The wiring terminal is a kind of accessory for realizing electrical connection, belongs to one kind of connector, and the wiring terminal is used to facilitate the connection of wire.The wiring terminal in prior art can be divided into straight insertion type, spring back-pulling type, screw fastening type and the like according to wire clamping mode.Spring back-pulling type wiring terminal in prior art is usually closed when factory shipment, when needing to insert wire, specific tool (such as screwdriver) is needed to open spring, make wire insertion hole expose, then insert wire again;After inserting wire, tool is pulled out, and spring is automatically closed, wire is firmly fixed in socket.This kind of wiring terminal cannot guarantee that wire insertion hole is always in open state when factory shipment, and specific tool is also needed to open wire insertion hole, which is not convenient for user to directly insert wire. SUMMARY
[0003] The utility model provides a back-pulling type wire clamping wiring terminal, which is convenient for user to directly insert wire.
[0004] To solve the above technical problems, the utility model adopts the following technical scheme:
[0005] A back-pulling type wire clamping wiring terminal, comprising a shell, a conductive sheet, a back-pulling assembly, a threaded compression knob and a retreat locking assembly arranged on the shell;
[0006] One side of the lower part of the shell is provided with a wire insertion hole;
[0007] The conductive sheet is located in the inner cavity of the shell, the longitudinal section of the conductive sheet is in inverted U shape, and the conductive sheet forms a wire insertion channel aligned with the wire insertion hole;
[0008] The back-pulling assembly comprises a back-pulling wire clamping support and a back-pulling spring, the back-pulling wire clamping support is connected to the conductive sheet in an up-down sliding manner, the back-pulling wire clamping support is provided with a wire inlet hole corresponding to the wire insertion hole, and the back-pulling spring is vertically arranged between the back-pulling wire clamping support and the conductive sheet, with its two ends abutting against the back-pulling wire clamping support and the conductive sheet respectively;
[0009] The threaded compression knob is threadedly connected to the upper part of the shell, with its lower end in contact with the back-pulling wire clamping support, and its upper end provided with a clamping groove;
[0010] The retreat locking assembly comprises a locking button and a return spring, the locking button is connected to the upper part of the shell in a left-right sliding manner, with its end close to the threaded compression knob provided with a clamping convex matching the clamping groove, and the return spring is horizontally arranged between the locking button and the shell, with its two ends abutting against the locking button and the shell respectively.
[0011] In some embodiments, a chute is arranged on one side of the upper part of the shell, the chute is perpendicular to the side wall of the shell, and a first opening is arranged at the outer end of the chute; the locking button is in sliding connection with the chute.
[0012] In at least one embodiment, a limiting protrusion is arranged on the side wall of the outer end of the chute, and the limiting protrusion is used for limiting the locking button.
[0013] Compared with the prior art, the utility model at least realizes the following beneficial effects:
[0014] 1. Before the delivery of the terminal, the threaded compression knob is rotated counterclockwise to move down, the return spring is compressed, the return wire clamping bracket is moved down, the wire inlet hole is opened and communicated with the wire insertion hole and the wire insertion channel, the locking button is pressed and moved inward and blocked on the upper end of the threaded compression knob, due to the upward elastic force of the return spring, the clamping groove and the clamping convex are in abutment, thereby the threaded compression knob is locked and cannot be rotated counterclockwise to move up, so that the wire inlet hole is always in an open state, and the user can directly insert the wire.
[0015] 2. When the terminal is inserted into the wire, the threaded compression knob only needs to be rotated clockwise, the clamping groove is moved down and released from the clamping convex, the locking button is popped out outward under the action of the reset spring, the locking of the threaded compression knob is released, at this time, the threaded compression knob can be rotated counterclockwise to move up, the return spring is elongated and pushes the return wire clamping bracket to move up, so as to clamp the wire passing through the wire inlet hole, prevent the wire from loosening or falling off, reduce the short circuit and fire hazard, and high-power thick wires can also be used. BRIEF DESCRIPTION OF DRAWINGS
[0016] One or more embodiments of the utility model will now be described by way of example only with reference to the drawings, in which:
[0017] Figure 1 is a structural schematic view of the embodiment of the present application;
[0018] Figure 2 is a front view of the internal structure of the embodiment of the present application;
[0019] Figure 3 is an exploded view of the embodiment of the present application;
[0020] Figure 4 is Figure 3 the local enlarged view of the A area of
[0021] Figure 5 is Figure 3 the local enlarged view of the B area of
[0022] Figure 6 is a structural schematic view of the retreat-stop locking assembly of the embodiment of the present application;
[0023] Figure 7 Fig. 1 is a perspective view of the C region of the shell. Figure 3 Fig. 2 is a partial enlarged view of the C region of the shell.
[0024] In the figure, 1 is a shell, 11 is a wire insertion hole, 12 is a sliding groove, 121 is a first opening, 122 is a limiting convex edge, 13 is a screw hole, 131 is a second opening, 14 is a limiting shoulder, 2 is a conductive sheet, 21 is a wire insertion channel, 3 is a pull-back assembly, 31 is a pull-back wire clamping support, 311 is a wire inlet hole, 32 is a pull-back spring, 4 is a threaded compression knob, 41 is a clamping groove, 42 is a hexagonal hole, 5 is a retreat-stopping locking assembly, 51 is a locking button, 511 is a clamping convex, 52 is a reset spring, 6 is a base plate, 7 is a first side plate, 8 is a second side plate, 9 is a limiting frame, 10 is a first shell, and 20 is a second shell. DETAILED DESCRIPTION
[0025] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. It should be understood that the present application can be realized in various forms, and should not be understood as being limited to the embodiments described herein. The embodiments are provided to make the disclosure of the present application more complete and to fully convey the concept of the present application to those skilled in the art.
[0026] In the description of the application, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In this application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In this application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.
[0027] As Figures 1 to 7 shown, a back-pulling wire clamping terminal includes a shell 1, and a conductive sheet 2, a back-pulling assembly 3, a threaded compression knob 4 and a retreat locking assembly 5 arranged on the shell 1.
[0028] The lower side of the shell 1 is provided with a wire insertion hole 11, which is communicated with the inner cavity of the shell 1; the conductive sheet 2 is located in the inner cavity of the shell 1, the longitudinal section of the conductive sheet 2 is inverted U-shaped, and the conductive sheet 2 is formed with a wire insertion channel 21 which is aligned with the wire insertion hole 11; the pull-back assembly 3 comprises a pull-back wire clamping support 31 and a pull-back spring 32, the pull-back wire clamping support 31 is slidably connected to the conductive sheet 2, the pull-back wire clamping support 31 is provided with a wire inlet hole 311 corresponding to the wire insertion hole 11, the pull-back spring 32 is vertically arranged between the pull-back wire clamping support 31 and the conductive sheet 2, and the two ends of the pull-back spring 32 are respectively abutted on the upper part of the pull-back wire clamping support 31 and the top of the conductive sheet 2; the threaded compression knob 4 is threadedly connected to the upper part of the shell 1, and the lower end of the threaded compression knob 4 is in contact with the pull-back wire clamping support 31, and the upper end of the threaded compression knob 4 is provided with a clamping groove 41, and preferably, the threaded compression knob 4 is provided with a multi-tooth external thread; the stop locking assembly 5 comprises a locking button 51 and a reset spring 52, the locking button 51 is slidably connected to the upper part of the shell 1, and the end of the locking button 51 close to the threaded compression knob 4 is provided with a clamping convex 511 which is matched with the clamping groove 41, and the reset spring 52 is horizontally arranged between the locking button 51 and the shell 1, and the two ends of the reset spring 52 are respectively abutted on the locking button 51 and the shell 1.
[0029] It should be noted that before leaving the factory, the threaded compression knob 4 is rotated clockwise and moved downward, so that the pull-back spring 32 is compressed, the pull-back wire clamping support 31 is moved downward, and after the wire inlet hole 311 is communicated with the wire insertion hole 11 and the wire insertion channel 21 (i.e. the wire inlet hole 311 is opened), the locking button 51 is pressed, the locking button 51 is moved inward and is blocked on the upper end of the threaded compression knob 4, due to the upward elastic force of the pull-back spring 32, the clamping groove 41 is abutted with the clamping convex 511, at this time, the threaded compression knob 4 can be locked, and the threaded compression knob 4 cannot be rotated counterclockwise and moved upward, so that the wire inlet hole 311 is always in an open state, which is convenient for users to directly insert the wire.
[0030] Optionally, the upper side of the shell 1 is provided with a sliding groove 12, the sliding groove 12 is perpendicular to the side wall of the shell 1, and the outer end of the sliding groove 12 is provided with a first opening 121; the locking button 51 is slidably connected with the sliding groove 12, and the user can press the locking button 51 by placing the fingers in the first opening 121.
[0031] Further, the outer end side wall of the sliding groove 12 is provided with a limiting convex edge 122, and the limiting convex edge 122 is used for limiting the locking button 51.
[0032] Optionally, the clamping groove 41 is an annular groove; and the clamping convex 511 is an arc-shaped protrusion.
[0033] Optionally, the upper part of the shell 1 is provided with a vertical screw hole 13, the top end of the screw hole 13 is provided with a second opening 131, the diameter of the second opening 131 is smaller than the inner diameter of the screw hole 13; the threaded compression knob 4 is threadedly connected with the screw hole 13, and the upper end of the threaded compression knob 4 is provided with a hexagonal hole 42.
[0034] It should be noted that when the terminal is inserted into the wire, the user can use a hex wrench or the like tool to insert from the second opening 131 to adjust the threaded compression knob 4, at this time only need to rotate the threaded compression knob 4 clockwise, the card slot 41 is lowered and the card convex 511 is loosened, the locking button 51 is popped out under the action of the reset spring 52, the locking of the threaded compression knob 4 is released, at this time the threaded compression knob 4 can be rotated counterclockwise to move up, the return spring 32 is elongated, the return wire clamp bracket 31 is moved up and clamped.
[0035] Optionally, the return wire clamp bracket 31 comprises a base plate 6, a first side plate 7 and a second side plate 8, the first side plate 7 and the second side plate 8 are vertically fixed on both sides of the base plate 6 respectively, and the first side plate 7 and the second side plate 8 are perpendicular to the wire insertion channel 21; the wire insertion hole 311 is arranged on the first side plate 7 and the second side plate 8; the horizontal plate body at the top of the conductive sheet 2 passes through the wire insertion hole 311, and it should be noted that when the first side plate 7 and the second side plate 8 move up, the horizontal plate body of the conductive sheet 2 can limit the first side plate 7 and the second side plate 8.
[0036] Optionally, a limiting frame 9 is arranged at the top of the conductive sheet 2; a limiting shoulder 14 is arranged above both sides of the limiting frame 9 in the inner cavity of the shell 1, and the limiting frame 9 and the limiting shoulder 14 cooperate to limit and fix the conductive sheet 2 in the inner cavity of the shell 1.
[0037] Optionally, the shell 1 comprises a first shell 10 and a second shell 20 arranged oppositely, and the first shell 10 is inserted with the second shell 20.
[0038] The use method of the utility model is:
[0039] Firstly, after rotating the threaded compression knob 4 clockwise by using a hex wrench, the threaded compression knob 4 moves down, the return spring 32 is compressed, the return wire clamp spring moves down and the wire insertion hole 311 is opened, at this time the locking button 51 is pressed, the threaded compression knob 4 is locked, and the wire insertion hole 311 is always in an open state to facilitate the user to directly insert the wire; then, the wire is inserted; secondly, after rotating the threaded compression knob 4 clockwise by using a hex wrench, the locking button 51 is popped out under the action of the reset spring 52, and the locking of the threaded compression knob 4 is released; finally, the threaded compression knob 4 is rotated counterclockwise to move up, the return spring 32 is elongated, the return wire clamp bracket 31 is moved up and clamps the wire.
[0040] It should be understood that all the above embodiments are exemplary but not restrictive, any modification, equivalent change and modification made by the person skilled in the art to the above described specific embodiments still belong to the range of the technical scheme of the utility model.
Claims
1. A backwire crimped terminal comprising a housing, characterized by: The shell is provided with a conductive sheet, a pull-back assembly, a threaded compression knob and a retreat-stop locking assembly; The shell is provided with a wire insertion hole on one side of the lower part; The conductive sheet is located in the inner cavity of the shell, the longitudinal section of the conductive sheet is in the shape of an inverted U, and the conductive sheet is provided with a wire insertion channel aligned with the wire insertion hole; The pull-back assembly comprises a pull-back wire clamping support and a pull-back spring, the pull-back wire clamping support is connected to the conductive sheet in a vertically sliding manner, the pull-back wire clamping support is provided with a wire inlet hole corresponding to the wire insertion hole, and the pull-back spring is vertically arranged between the pull-back wire clamping support and the conductive sheet, and the two ends of the pull-back spring are respectively in abutment with the pull-back wire clamping support and the conductive sheet; The threaded compression knob is threadedly connected to the upper part of the shell, and the lower end of the threaded compression knob is in contact with the pull-back wire clamping support, and the upper end of the threaded compression knob is provided with a clamping groove; The retreat-stop locking assembly comprises a locking button and a reset spring, the locking button is connected to the upper part of the shell in a left-right sliding manner, and the end of the locking button close to the threaded compression knob is provided with a clamping convexity matched with the clamping groove, and the reset spring is horizontally arranged between the locking button and the shell, and the two ends of the reset spring are respectively in abutment with the locking button and the shell.
2. The pull-back crimped terminal of claim 1, wherein: The upper part of the shell is provided with a sliding groove, the sliding groove is perpendicular to the side wall of the shell, and the outer end of the sliding groove is provided with a first opening; the locking button is in sliding connection with the sliding groove.
3. The pull-back crimped wire terminal of claim 2, wherein: The outer end side wall of the sliding groove is provided with a limiting convexity, and the limiting convexity is used for limiting the locking button.
4. The pull-back crimped terminal of claim 1, wherein: The clamping groove is an annular groove, and the clamping convexity is an arc-shaped convexity.
5. The pull-back crimped wire terminal of claim 1, wherein: The upper part of the shell is provided with a vertical screw hole, the top end of the screw hole is provided with a second opening, the diameter of the second opening is smaller than the inner diameter of the screw hole; the threaded compression knob is threadedly connected with the screw hole, and the upper end of the threaded compression knob is provided with a hexagonal hole.
6. The pull-back crimped wire terminal of claim 1, wherein: The pull-back wire clamping support comprises a base plate, a first side plate and a second side plate, the first side plate and the second side plate are respectively vertically fixed to the two sides of the base plate, and the first side plate and the second side plate are perpendicular to the wire insertion channel; the wire inlet hole is arranged on the first side plate and the second side plate; the conductive sheet passes through the wire inlet hole.
7. The pull-back crimped wire terminal of claim 1, wherein: The top of the conductive sheet is provided with a limiting frame, and the inner cavity of the shell is provided with a limiting shoulder above the two sides of the limiting frame.
8. The pull-back crimped wire terminal of claim 1, wherein: The shell comprises a first shell and a second shell arranged oppositely, and the first shell is inserted with the second shell.