CN111477475A - Wire-clamping spring structure and switch structure - Google Patents

Abstract

The invention provides a wire clamping spring structure and a switch structure, comprising: a longitudinal arm, which is arranged in a sheet shape; a transverse arm, which is in a sheet shape and is connected with the longitudinal arm to form a "V"-shaped bend, and the connecting part is arranged in an arc shape, The end of the transverse arm extending away from the connecting portion is provided with a guide slot, the inner side of the longitudinal arm and the inner side of the transverse arm are oppositely arranged in the "V"-shaped bending, and the inner side of the transverse arm is protruded with a folded edge. and/or the inner side of the longitudinal arm is provided with a lug portion, and the lug portion protrudes away from the inner side of the longitudinal arm. This arrangement improves the structural strength and installation stability of the wire clip spring, so that after the installation and cooperation of the wire clip spring is completed, the plug-in wire is not easily loosened and the plug-in wire is biased, and the switch control circuit is not in poor contact or cannot be powered on. problem arises.

Description

Wire-clamping spring structure and switch structure

technical field

The invention relates to the technical field of mechanical switches, in particular to a wire-clamping spring structure and a switch structure.

Background technique

At present, mechanical plug-in switches are commonly used in the market, including rotary switches, keyboard switches, etc.

The wire clamping spring used in the above switches is in the shape of a "V" shape. When the wire clamping spring is assembled at the socket during use, when the wire insertion force is slightly larger or the insertion force is forced, it will cause the wire to be clamped due to the improper matching. In addition, there is a problem of force deformation at the sockets of different specifications and diameters of the wire clamp spring. When the wire clamp spring is deformed, the plug wire may be loose and the plug wire may be deviated inside the switch, which will lead to the whole The machine is in poor contact or cannot be powered on.

SUMMARY OF THE INVENTION

Therefore, the technical problem to be solved by the present invention is to overcome the flexible installation of the wire spring structure in the mechanical plug-in switch in the prior art, so that the loose plug-in and the deviation of the plug-in lead to the defective contact of the switch control circuit or the inability to energize the switch. , thereby providing a wire-clamping spring structure and a switch structure.

The invention provides a wire clamping spring structure, comprising: a longitudinal arm arranged in a sheet shape;

The transverse arm is in the shape of a sheet and is connected with the longitudinal arm to form a "V"-shaped bend. The connecting portion is arranged in an arc shape, and the end portion of the transverse arm extending away from the connecting portion is provided with a guide slot. The inner side of the longitudinal arm and the inner side of the transverse arm are oppositely arranged in the "V"-shaped bending,

The inner side of the transverse arm is protrudingly provided with a folded portion, and the folded portion is arranged along the edges of both sides in the extending direction of the transverse arm, and/or, the inner side of the longitudinal arm is provided with a clip portion, so The hook portion is protruded away from the inner side surface of the longitudinal arm.

The folded portion is a trapezoidal plate, which is perpendicular to the inner side of the transverse arm, the long side of the folded portion is connected and fixed with the edge of the transverse arm, and the included angle between the top edge and the side edge is rounded.

The connection between the folded edge portion and the transverse arm is in the shape of an arc.

The folded portion is integrally formed with the transverse arm.

The hook part is an elastic part, and the hook part is arranged in the middle part of the longitudinal arm and opens on the inner side of the longitudinal arm.

The hook portion is arranged in a triangular shape, one corner end of the hook portion is separated from the longitudinal arm and protrudes away from the inner side of the longitudinal arm, and the edge opposite to the corner end is fixedly connected to the longitudinal arm.

The present invention provides a switch structure, including the above-mentioned wire-clamping spring structure.

The switch structure further includes a seat body, the seat body is fixed with the wire clip structure, and the longitudinal arm is in contact with the inner wall of the seat body.

The technical scheme of the present invention has the following advantages:

1. The present invention provides a wire-clamping spring structure, comprising: a longitudinal arm, which is arranged in a sheet shape; a transverse arm, which is in a sheet shape and is connected with the longitudinal arm to form a "V"-shaped bend, and the connecting portion is arranged in an arc shape. , the end of the transverse arm extending away from the connecting part is provided with a guide slot, and the inner side of the longitudinal arm and the inner side of the transverse arm are oppositely arranged in the "V"-shaped bending, so The inner side of the transverse arm is protrudingly provided with a folded portion, and the folded portion is provided along the edges of both sides in the extending direction of the transverse arm, and/or, the inner side of the longitudinal arm is provided with a clip portion, the The card ear portion is protruded away from the inner side surface of the longitudinal arm.

By arranging the folded parts on both sides of the extending direction of the transverse arm, the structural strength of the transverse arm is increased, and the phenomenon of deformation during the insertion or installation process is avoided. There will be interference, which avoids the phenomenon of multi-installation and mis-installation of the wire spring in the assembly process, which is convenient for the installation personnel to work; The installation tightness of the trailing arm and the matching device is improved, the moving range of the wire clamping spring is reduced, and the installation stability of the wire clamping spring is improved while the wire insertion is convenient. This arrangement improves the structural strength and installation stability of the wire clip spring, so that after the installation and cooperation of the wire clip spring is completed, the plug-in wire is not easily loosened and the plug-in wire is biased, and the switch control circuit is not in poor contact or cannot be powered on. problem arises.

2. In the wire-clamping spring structure provided by the present invention, the folded portion is a trapezoidal plate, which is perpendicular to the inner side of the transverse arm, the long side of the folded portion is connected and fixed with the edge of the transverse arm, and the top edge and the side edge are fixed. The included corners are rounded.

The folded part is arranged in a trapezoid shape, and the long side and the edge of the transverse arm are connected and fixed, so that the connection length between the folded part and the edge of the transverse arm is increased, and the strength of the transverse arm is improved. , to ensure that the cable spring will not scratch the installer during the installation process, and improve the safety of the cable spring installation.

3. In the wire-clamping spring structure provided by the present invention, the connection between the folded portion and the transverse arm is in the shape of an arc.

The arc-shaped connection relieves the stress concentration at the connection between the folded edge and the cross arm, makes the load distribution at the connection uniform, and makes the connection close to the equal-strength structure, which not only improves the strength of the cross arm, but also improves the prolongs the service life of the wire spring.

4. In the wire-clamping spring structure provided by the present invention, the folded portion is integrally formed with the transverse arm.

In this way, in the production process of the wire clamping spring, the transverse arm with the folded edge portion of the same plane can be directly formed, and then the folded edge part can be bent by extrusion, etc., which improves the production efficiency of the wire clamping spring and reduces the clamping force. production cost of the spring.

5. In the wire-clamping spring structure provided by the present invention, the lug portion is a groove body, which is arranged in the middle of the longitudinal arm and opens on the inner side of the longitudinal arm.

When the lug portion arranged in the middle of the trailing arm is in contact with the matching structure of the trailing arm, the load can be effectively distributed to all parts of the trailing arm, thereby improving the bearing capacity of the trailing arm.

6. In the wire-clamping spring structure provided by the present invention, the lug portion is arranged in a triangular shape, and one corner end of the lug portion is separated from the longitudinal arm and protrudes away from the inner side of the longitudinal arm. The opposite edge is fixedly connected to the trailing arm.

In this way, the high stability of the triangle is used to improve the bearing capacity of the lug portion. In addition, one corner end of the lug portion protrudes away from the longitudinal arm, so that when the fitting structure of the lug portion and the longitudinal arm abuts, The matching position of the two structures is an elastic corner end, which ensures the strength of the matching position and the stability of the abutment, reduces the moving range of the wire clip, and improves the stability of the installation of the wire clip while facilitating the insertion of the wire. sex.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the accompanying drawings in the following description The drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic three-dimensional structural diagram of a wire clamping spring structure provided in an embodiment of the present invention;

FIG. 2 is a three-dimensional schematic diagram of another angle of the wire clamping spring structure shown in FIG. 1;

3 is a schematic three-dimensional structure diagram of a wire-clamping spring structure in the prior art;

FIG. 4 is a three-dimensional schematic diagram of another angle of the wire clamping spring structure shown in FIG. 3;

5 is a schematic three-dimensional structural diagram of a switch structure provided in an embodiment of the present invention;

6 is a schematic cross-sectional view of a switch structure provided in an embodiment of the present invention;

Description of reference numbers:

1-Longitudinal arm; 2-Cross arm; 3-Connection part; 4-Guide slot; 5-Seat body; 11-Clip part; 21-Flange part.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Example 1

As shown in FIG. 1 to FIG. 4 , in this embodiment, a wire-clamping spring structure is provided, including: a longitudinal arm 1 and a transverse arm 2 .

The longitudinal arm 1 and the transverse arm 2 are connected to form a "V"-shaped bend. The connecting part of the two is the connecting part 3, and the connecting part is arranged in an arc shape to avoid scratching the user and disperse the load to improve the strength of the part. The "V"-shaped bending The inner side of the longitudinal arm 1 and the inner side of the transverse arm 2 are oppositely arranged in the bend.

The longitudinal arm 1 is arranged in the shape of a square piece, and the middle part is provided with a hook portion 11, and the hook portion 11 is protruded away from the inner side of the longitudinal arm 1,

The transverse arm 2 is provided in a sheet shape, the end portion facing away from the connecting portion 3 is provided with a guide slot 4 protruding along the inner side of the transverse arm 2, and the inner side of the transverse arm 2 is protruded with a folded portion 21, and the folded portion 21 are arranged at the edges of opposite sides along the extending direction of the transverse arm 2 .

By arranging the folded portions 21 on both sides of the extending direction of the transverse arm 2, the structural strength of the transverse arm 2 is increased, and the phenomenon of deformation during wire insertion or installation is avoided. Interference will occur in multiple stacking processes, which prevents the multi-installation and mis-installation of the wire springs during the assembly process, and facilitates the work of the installer; by setting the clip portion 11, the clip portion 11 can be connected with the The matching device of the trailing arm 1 abuts, which improves the installation tightness of the trailing arm 1 and the matching device, reduces the movement range of the wire clip, and improves the installation stability of the clip spring while facilitating the wire insertion. This arrangement improves the structural strength and installation stability of the wire clip spring, so that after the installation and cooperation of the wire clip spring is completed, the plug-in wire is not easily loosened and the plug-in wire is biased, and the switch control circuit is not in poor contact or cannot be powered on. problem arises.

As an alternative embodiment, only the folded edge portion 21 may be provided on the wire catch spring or only the catch portion 11 may be provided on the trailing arm 1 .

In this embodiment, the two folded portions 21 are isosceles trapezoid plates, which are perpendicular to the inner side of the transverse arm 2, the bottom long side of the folded portion 21 is connected and fixed with the edge of the transverse arm 2, and the top edge and the side are clamped. The corners are rounded, and the positions of the folded portion 21 on both sides of the transverse arm 2 are not specifically limited, and are arranged in the middle of the two sides of the transverse arm 2 in this embodiment. The hemming portion 21 arranged in a trapezoid shape is connected and fixed with the long side and the edge of the transverse arm 2. This arrangement increases the length of the connection between the hemming portion 21 and the edge of the transverse arm 2, and improves the strength of the transverse arm 2. At the same time, the folding portion 21 is exposed. The corners are rounded to ensure that the cable spring will not scratch the installer during the installation process, which improves the safety of the cable spring installation.

As an alternative embodiment, the shape of the hemming portion 21 is not limited, and may be a semicircular plate, a triangular plate, a rectangular plate, or the like.

The connection between the folded portion 21 and the transverse arm 2 is in the shape of an arc. The arc-shaped connection relieves the stress concentration at the connection between the folded portion 21 and the transverse arm 2, makes the load distribution at the connection uniform, and makes the connection close to an equal-strength structure, that is, improves the strength of the transverse arm 2 , and improve the service life of the wire spring.

As an alternative embodiment, the connection between the folded portion 21 and the transverse arm 2 may be an edge.

In this embodiment, the hem portion 21 and the transverse arm 2 are integrally formed. In this way, in the production process of the wire clamping spring, the transverse arm 2 with the hemming portion 21 on the same plane can be directly formed, and then the hemming portion 21 can be bent by means of extrusion, etc., which improves the production efficiency of the wire clamping spring and reduces the The production cost of the wire spring is reduced.

As an alternative embodiment, the hem portion 21 can be welded or glued to the transverse arm 2 .

In this embodiment, the lug portion 11 is a groove body, which is arranged in the middle of the longitudinal arm 1 and opens on the inner surface of the longitudinal arm 1 . The lug portion 11 disposed in the middle of the trailing arm 1 can effectively distribute the load to all parts of the trailing arm 1 evenly when it is in contact with the matching structure of the trailing arm 1, thereby improving the bearing capacity of the trailing arm 1. In addition, The lug portion 11 provided in the groove body can be formed by punching or the like, which is convenient to manufacture and has low cost.

As an alternative embodiment, the lug portion 11 may be a solidly arranged protrusion.

The hook portion 11 is arranged in a triangular shape. The top corner end of the hook portion 11 facing away from the connecting portion 3 is separated from the longitudinal arm 1 and protrudes away from the inner side of the longitudinal arm 1 . The edge opposite to the corner end is fixed to the longitudinal arm 1 . connect. In this way, the high stability of the triangle is used to improve the bearing capacity of the lug portion 11. In addition, one corner end of the lug portion 11 is protruded away from the longitudinal arm 1, so that the fitting of the lug portion 11 and the longitudinal arm 1 can be achieved. When the structures are in contact, the matching position of the two structures is the corner end with elasticity, which ensures the strength of the matching position and the stability of the abutment, reduces the movement range of the wire clamping spring, and improves the clamping force while facilitating the insertion of the wire. The stability of the wire spring installation. In this embodiment, the corner ends of the lug portion 11 are rounded.

As an alternative embodiment, a plurality of the lug portions 11 can be provided, and are uniformly provided on the outer side of the trailing arm 1 . As another alternative embodiment, the tab portion 11 may be set in a semicircle or other shapes.

The following table is a test comparison table of the pull-out force of different specifications of wire diameters before and after the change of the wire clamping spring structure:

1. The thickness of the wire spring is 0.15mm:

Socket wire diameter 0.3mm² 0.5mm² 0.75mm² before change 52～54N 60～62N 75～80N after change 65～70N 80～90N 90～100N

2. The thickness of the wire spring is 0.2mm:

Socket wire diameter 0.75mm² before change 90～100N after change 150～170N

It can be seen from the above table that the wire clip spring with the addition of the folded edge portion 21 and the clip portion 11 significantly enhances the strength during the stressing process.

Example 2

This embodiment is based on the above-mentioned Embodiment 1. As shown in FIGS. 5 to 6 , this embodiment provides a switch structure including the above-mentioned wire-clamping spring structure. The switch structure includes a seat body 5, the seat body 5 is fixed in cooperation with the wire clamping spring structure, the wire clamping spring is arranged in the socket of the seat body, the lug portion 11 on the longitudinal arm 1 is in contact with the inner side wall of the seat body, and the transverse arm 2 The end of the seat is in contact with the inner side wall on the other side of the seat body, and a conductive sheet is arranged on the inner side wall here. In this way, through the setting of the ear part 11, the phenomenon of loose plug-in wire and deviation of plug-in wire may occur inside the switch, and the problem of poor contact or failure of the whole machine to be energized is avoided.

Obviously, the above-mentioned embodiments are only examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. And the obvious changes or changes derived from this are still within the protection scope of the present invention.

Claims (8)

1. A wire trap spring structure comprising:

the trailing arm (1) is arranged in a sheet shape;

the transverse arm (2) is in a sheet shape, is connected with the longitudinal arm (1) and forms a V-shaped bend, the connecting part (3) is arranged in an arc shape, a guide clamping groove (4) is arranged at the end part of the transverse arm (2) back to the extending part of the connecting part (3), the inner side surface of the longitudinal arm (1) and the inner side surface of the transverse arm (2) are oppositely arranged in the V-shaped bend,

the improved structure is characterized in that a flanging part (21) is arranged on the inner side surface of the transverse arm (2) in a protruding mode, the flanging part (21) is arranged on the edges of two sides of the extending direction of the transverse arm (2), and/or an ear clamping part (11) is arranged on the inner side surface of the longitudinal arm (1), and the ear clamping part (11) faces away from the inner side surface of the longitudinal arm (1) in a protruding mode.

2. The wire spring structure of claim 1, wherein the folded part (21) is a trapezoidal plate and is perpendicular to the inner side surface of the cross arm (2), the long side of the folded part (21) is fixedly connected with the edge of the cross arm (2), and the included angle between the top edge and the side edge leads to a round angle.

3. A wire spring structure according to claim 2, wherein the junction between the flange portion (21) and the lateral arm (2) is formed in a circular arc shape.

4. A wire spring structure according to claim 3, wherein the hem portion (21) is formed integrally with the crossbar (2).

5. A wire spring structure according to any one of claims 1 to 4, wherein said catch portion (11) is an elastic member, and said catch portion (11) is provided in the middle of said trailing arm (1) and opens on the inner side surface of said trailing arm (1).

6. A wire spring structure according to claim 5, wherein the engaging portion (11) is formed in a triangular shape, one corner end of the engaging portion (11) is separated from the trailing arm (1) and protrudes away from the inner side surface of the trailing arm (1), and the edge opposite to the corner end is fixedly connected to the trailing arm (1).

7. A switch structure comprising the wire spring structure of any one of claims 1-6.

8. The switch structure according to claim 7, further comprising a seat (5), wherein the seat (5) is fixed to the wire spring structure, and the trailing arm abuts against an inner wall of the seat.

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