Trigger type wiring terminal

Abstract

The invention provides a trigger type wiring terminal. The trigger type wiring terminal is provided with a first clamping part on an insulating shell, a second clamping part on a key, a first trigger part and a second trigger part on a trigger section; after the key is pressed down to a certain stroke, the key is turned forward under the action of the elastic force of the clamping section, so that the second clamping part is clamped on the first clamping part, and a wiring space for inserting a wire is formed between the clamping section and the conductor; when the trigger section is pressed down by the lead, the second trigger part acts on the first trigger part, so that the key is turned over reversely, the second clamping part and the first clamping part are released from clamping, and the clamping section is released to clamp the lead; clamping parts do not need to be arranged on the clamping section and the triggering section, so that the clamping spring is simple to machine and form; and meanwhile, the clamping section is kept in an elastic compression state by utilizing clamping and limiting of the key, so that the condition that the clamping section is automatically unlocked and released when the wiring terminal falls off during transportation or before use can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal blocks, and more particularly, to a trigger type terminal block. Background Art

[0002] A terminal block is an electrical connection device that is convenient, fast, and safe to use, and is widely used in the wiring of various electronic devices and industrial control systems.

[0003] In the prior art, a terminal block generally includes an insulating housing, a wiring hole provided on the insulating housing for inserting a wire, a conductor provided on the insulating housing, a wire clamping spring piece provided in the insulating housing, and a key movably provided on the insulating housing. Its initial state is that the clamping section of the wire clamping spring piece is pressed down by the key so that the clamping section is clamped on the trigger section of the wire clamping spring piece; when wiring, the wire presses down the trigger section so that the clamping section is disengaged from the clamping of the trigger section, so that the clamping section undergoes elastic deformation and approaches the conductor, and then clamps the wire in the wiring hole. The following deficiencies exist in this structure:

[0004] 1. The wire clamping spring piece is usually formed by stamping and cutting an elastic metal sheet and then bending it. It is necessary to process locking parts on the clamping section and the trigger section respectively, and the processing and forming are relatively cumbersome;

[0005] 2. Since the trigger section needs to undergo elastic deformation, there is a large movement space at its bottom. In order to ensure that the clamping state of the clamping section and the trigger section can be triggered smoothly, the locking contact stroke of the locking part on it is usually short; when it drops during transportation or before the terminal block is used, the locking part is likely to unlock by itself, resulting in the clamping section undergoing elastic deformation and approaching the conductor, making it difficult for the user to insert the wire, and the user has to press the key again with a tool to lock the locking part. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a trigger type terminal block to solve the above problems.

[0007] The present invention adopts the following solutions:

[0008] The present application provides a trigger type terminal block, including an insulating housing, a conductor installed in the insulating housing, a wire clamping spring piece, and a key. A first clamping part is provided on the insulating housing; a second clamping part and a first trigger part are provided on the key; the wire clamping spring piece is integrally formed, and its two ends respectively form a clamping section and a trigger section, and a second trigger part is provided on the trigger section;

[0009] Wherein, after the button is pressed, it will push the clamping section to rotate elastically, and when the button is pressed to a certain stroke, it can flip forward under the action of the elastic force of the clamping section, so that the second clamping portion is clamped on the first clamping portion, thereby making the clamping section in a compressed state to be triggered. At this time, a wiring space for inserting a wire is formed between the clamping section and the conductor;

[0010] When the wire presses the trigger section, the second trigger portion pushes the first trigger portion to make the button flip backward, thereby releasing the clamping of the second clamping portion with the first clamping portion, so as to release the clamping section and then clamp the wire.

[0011] Further, the second trigger portion is formed by bending a part of the body of the trigger section.

[0012] Further, the first clamping portion is a first stepped surface provided on the button hole of the insulating housing; the second clamping portion is a second stepped surface provided on the button.

[0013] Further, a third stepped surface is provided above the first stepped surface on the button hole, and a fulcrum for the button to flip is formed on its side.

[0014] Further, a first arc-shaped side wall protruding toward the button hole is formed above the third stepped surface; a concave second arc-shaped side wall adapted to the first arc-shaped side wall is formed above the second stepped surface.

[0015] Further, the button includes an acting portion acting on the clamping section, and an extending portion connected to the acting portion and extending to the trigger section; the second clamping portion is provided on the acting portion, and the first trigger portion is provided on the extending portion.

[0016] Further, the extending portion is in the shape of a sheet and is movably attached to the wall surface of the insulating housing.

[0017] Further, a third clamping portion is also provided on the insulating housing, and a fourth clamping portion adapted to the third clamping portion is provided on the extending portion.

[0018] Further, the first trigger portion has a first arc-shaped trigger surface.

[0019] Further, the second trigger portion has a second arc-shaped trigger surface adapted to the first arc-shaped trigger surface.

[0020] By adopting the above technical solutions, the present invention can achieve the following technical effects:

[0021] The present invention provides a trigger-type terminal block. Through the arrangement of the first clamping part on the insulating housing, the second clamping part, the first trigger part on the button, and the second trigger part on the trigger section of the integrally formed wire clamping elastic piece, the clamping section is in a compressed and waiting-to-be-triggered state by using the clamping between the button and the insulating housing, so that a wiring space for inserting a wire is more stably formed between the clamping section and the conductor, avoiding the situation that the clamping section unlocks and releases itself during transportation or when the terminal block drops before use. And for the integrally formed wire clamping elastic piece, only a trigger part needs to be arranged on the trigger section. Compared with the prior art, it does not need to arrange clamping parts on both the clamping section and the trigger section, nor does it need to additionally arrange a trigger piece. Its structure is simple and convenient for processing and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0023] Figure 1 is a schematic structural diagram of the trigger-type terminal block according to Embodiment 1 of the present invention;

[0024] Figure 2 is a schematic cross-sectional structural diagram of the trigger-type terminal block according to Embodiment 1 of the present invention;

[0025] Figure 3 is a schematic structural diagram of the insulating housing of the trigger-type terminal block according to Embodiment 1 of the present invention Figure 1 ;

[0026] Figure 4 is a schematic structural diagram of the insulating housing of the trigger-type terminal block according to Embodiment 1 of the present invention Figure 2 ;

[0027] Figure 5 is a schematic structural diagram of the wire clamping elastic piece of the trigger-type terminal block according to Embodiment 1 of the present invention;

[0028] Figure 6 is a schematic front structural diagram of the wire clamping elastic piece of the trigger-type terminal block according to Embodiment 1 of the present invention;

[0029] Figure 7 is a schematic structural diagram of the button of the trigger-type terminal block according to Embodiment 1 of the present invention;

[0030] Figure 8 is Figure 2 a partial enlarged structural diagram on the left;

[0031] Figure 9 Yes Figure 2 Schematic diagram of a partially enlarged structure on the right side;

[0032] Icon: Insulating housing 1, Conductive body 2, Clamping section 3, Trigger section 4, Clamping wire spring piece 5, Button 6, First clamping portion 7, Second clamping portion 8, First trigger portion 9, Second trigger portion 10, Wire insertion hole 11, Button hole 12, Conductive portion 13, Wire 14, Third step surface 15, Convex portion 16, Spring bow 17, Acting portion 18, Extension portion 19, Third clamping portion 20, Fourth clamping portion 21, First arc-shaped side wall 22, Second arc-shaped side wall 23. Specific implementation mode

[0033] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Embodiment

[0035] Combined with Figures 1 to 7 As shown, this embodiment provides a trigger-type terminal block, including an insulating housing 1, a conductive body 2, a clamping wire spring piece 5 and a button 6 installed in the insulating housing 1. A first clamping portion 7 is provided on the insulating housing 1; a second clamping portion 8 and a first trigger portion 9 are provided on the button 6; the clamping wire spring piece 5 is integrally formed, and its two ends respectively form a clamping section 3 and a trigger section 4, and a second trigger portion 10 is provided on the trigger section 4;

[0036] Wherein, when the button 6 is pressed, it will push the clamping section 3 to rotate elastically, and when the button 6 is pressed to a certain stroke, it can be flipped forward under the action of the elastic force of the clamping section 3, so that the second clamping portion 8 is clamped on the first clamping portion 7, so that the clamping section 3 is in a compressed and waiting-to-be-triggered state. At this time, a wiring space for inserting the wire 14 is formed between the clamping section 3 and the conductive body 2;

[0037] When the trigger section 4 is pressed down by the wire 14, the second trigger portion 10 pushes the first trigger portion 9 to reversely flip the key 6, so that the second latching portion 8 releases the latching with the first latching portion 7, thereby releasing the clamping section 3 to clamp the wire 14.

[0038] Specifically, in this embodiment, the insulating housing 1 has a wire insertion hole 11 and a key hole 12. The conductor 2 is disposed at the bottom of the insulating housing 1, and both ends are bent upward to form a conduction portion 13 capable of making electrical contact with the wire 14. The wire clamping spring piece 5 is integrally formed, and both ends thereof respectively form a clamping section 3 and a trigger section 4, and a second trigger portion 10 is disposed on the trigger section 4.

[0039] As Figures 3 to 7 shown, two convex portions 16 are provided on the insulating housing 1, and the wire clamping spring piece 5 is positioned on the insulating housing 1 through the cooperation of two spring bows 17 on the wire clamping spring piece 5 and the convex portions 16. The first latching portion 7 is a first step surface provided on the key hole of the insulating housing 1; the second latching portion 8 is a second step surface provided on the key 6. A third step surface 15 is provided above the first step surface on the key hole, and a fulcrum for the key 6 to flip is formed on the side thereof. An outwardly protruding first arc-shaped side wall 22 is provided above the third step surface 15; a recessed second arc-shaped side wall 23 adapted to the first arc-shaped side wall 22 is provided above the second step surface; the setting of the arc-shaped side walls increases the latching area between the third step surface 15 and the second step surface, so as to limit the upward movement of the key 6 when the latching between the first latching portion 7 and the second latching portion 8 is released under the action of the elastic force of the clamping section 3, and prevent the key 6 from falling off from the key hole 12. And the setting of the arc-shaped side walls increases the contact guiding area between the side wall of the key 6 and the side wall of the key hole 12, realizing a better guiding effect; and the setting of the arc-shaped side walls can reduce the lateral displacement of the key 6, further ensuring the stability of the latching between the first latching portion 7 and the second latching portion 8.

[0040] In this embodiment, as Figure 7 shown, the key 6 includes an acting portion 18 acting on the clamping section 3 and an extending portion 19 connected to the acting portion 18 and extending to the trigger section 4; the second latching portion 8 is disposed on the acting portion 18, and the first trigger portion 9 is disposed on the extending portion 19. The extending portion 19 is in a sheet shape and is movably attached to the wall surface of the insulating housing 1.

[0041] As Figure 2 the left side and Figure 8As shown, when an external force acts on the key 6, the acting portion 18 presses down the clamping section 3, causing the clamping section 3 to elastically flip in the pressing direction (i.e., the clamping section 3 elastically contracts around the convex portion 16). When the key 6 is pressed down to a certain stroke (i.e., the second step surface exceeds the first step surface), the downward pressing force is removed. At this time, the key 6 flips forward along the fulcrum under the reaction force of the elastic force of the clamping section 3, so that the second step surface is clamped on the first step surface, and the key 6 is locked in the vertical direction, so that the clamping section 3 is in a compressed state to be triggered. A wiring space for inserting the wire 14 is formed between the clamping section 3 and the conducting portion 13 of the conductor 2. That is to say, the clamping section 3 maintains an elastically compressed state under the limit of the key 6 to form a wiring space for inserting the wire 14 with the conducting portion 13.

[0042] It should be noted that the size of the key hole 12 is at least greater than the width of the key 6 along the width in its flipping direction, so that the key 6 has a certain flipping space. The forward flipping means that the key 6 flips along the fulcrum so that the second step surface flips in the direction approaching the first step surface.

[0043] As Figure 2 the right side and Figure 9 shown, when the wire 14 presses down the trigger section 4, the trigger section 4 elastically flips downward, the second trigger portion 10 pushes the first trigger portion 9, and the key 6 is forced to move downward and flip backward along the fulcrum, so that the second engaging portion 8 moves away from the first engaging portion 7 and the engagement is released; and under the action of the elastic force of the clamping section 3, the acting portion 18 moves the entire key 6 upward until the second step surface is clamped on the third step surface 15 to realize the limit of the key 6; at this time, the clamping section 3 is in a released state, that is, the clamping section 3 approaches the conducting portion 13 to clamp the wire 14.

[0044] It should be noted that the backward flipping means that the key 6 flips along the fulcrum so that the second step surface flips in the direction away from the first step surface.

[0045] In the embodiment, the first trigger portion 9 has a first arc-shaped trigger surface; the second trigger portion 10 is formed by bending the body portion of the wire clamping elastic piece 5 to form a second arc-shaped trigger surface adapted to the first arc-shaped trigger surface. And in this embodiment, the second trigger portions 10 are symmetrically arranged on both sides of the trigger section of the wire clamping elastic piece 5, so that the wire clamping elastic piece 5 can be on both sides of the terminal symmetrically (such as Figure 2be shared on the left and right sides thereof; the arc-shaped triggering surface can enable the second triggering part 10 to push the first triggering part 9 more smoothly. Of course, in other embodiments, the second triggering part 10 may also directly be a stepped surface or a protruding part opposite to the first arc-shaped triggering surface, as long as it can push the first triggering part 9, and no specific limitation is made here.

[0046] Preferably, a third clamping part 20 is further arranged on the insulating housing 1, and a fourth clamping part 21 adapted to the third clamping part 20 is arranged on the extension part 19. For auxiliary clamping to ensure the stable clamping of the button 6 to the insulating housing 1.

[0047] For the trigger type wiring terminal provided by the present invention, the clamping section 3 is kept in an elastically compressed state by the limit of the button 6 and the insulating housing 1; the clamping section 3 and the triggering section 4 are not mutually clamped. The wire clamping elastic sheet 5 is integrally formed, and only a second triggering part 10 needs to be bent and processed on the body. Compared with the prior art, it does not need to arrange clamping parts on both the clamping section and the triggering section, nor does it need to additionally arrange a triggering piece, with a simple structure and easy processing and forming; at the same time, the clamping section 3 is kept in an elastically compressed state by the clamping limit of the button 6, and this method can effectively avoid the situation that the clamping section 3 unlocks and releases by itself when dropping during transportation or before using the wiring terminal.

[0048] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention.

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0050] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0051] In the present invention, unless otherwise clearly defined or limited, terms such as "installed", "connected", "linked", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly defined or limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

Claims

1. A trigger type terminal block, comprising an insulating housing, a conductor installed in the insulating housing, a wire clamping spring and a button, characterized in that: The insulating housing is provided with a first clamping portion; the button is provided with a second clamping portion and a first triggering portion; the clamping spring is integrally formed, and its two ends respectively form a clamping section and a triggering section, and the triggering section is provided with a second triggering portion; The button pushes the clamping section to rotate elastically after being pressed, and when the button is pressed to a certain stroke, it can be flipped forward under the action of the elastic force of the clamping section, so that the second clamping portion is clamped on the first clamping portion, so that the clamping section is in a compressed state to be triggered, and at this time, a wiring space for the wire to be inserted is formed between the clamping section and the conductor; When the wire presses down the trigger section, the second trigger part pushes the first trigger part to make the button flip in the opposite direction, so that the second clamping part is released from the clamping connection with the first clamping part, so as to release the clamping section and clamp the wire.

2. The trigger type terminal block according to claim 1, characterized in that: The second triggering portion is formed by bending a part of the body of the triggering segment.

3. The trigger type terminal block according to claim 1, characterized in that: The first clamping portion is a first step surface arranged on the button hole of the insulating housing; the second clamping portion is a second step surface arranged on the button.

4. The trigger type terminal block according to claim 3, characterized in that: A third step surface is arranged on the button hole above the first step surface, and a side edge of the third step surface forms a fulcrum for the button to flip.

5. The trigger type terminal block according to claim 4, characterized in that: A first arc-shaped side wall protruding toward one side of the key hole is formed above the third step surface; a second arc-shaped side wall concavely matched with the first arc-shaped side wall is formed above the second step surface.

6. The trigger type terminal block according to claim 1, characterized in that: The button includes an action portion acting on the clamping section, and an extension portion connected to the action portion and extending to the triggering section; the second clamping portion is arranged on the action portion, and the first triggering portion is arranged on the extension portion.

7. The trigger type terminal block according to claim 6, characterized in that: The extension part is in sheet shape and is movably attached to the wall surface of the insulating shell.

8. The trigger type terminal block according to claim 6 or 7, characterized in that: The insulating shell is also provided with a third clamping portion, and the extending portion is provided with a fourth clamping portion adapted to the third clamping portion.

9. The trigger type terminal block according to claim 1, characterized in that: The first triggering portion has a first arc-shaped triggering surface.

10. The trigger type terminal block according to claim 9, characterized in that: The second triggering portion has a second arc-shaped triggering surface matched with the first arc-shaped triggering surface.

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