CN212907503U

CN212907503U - Parking braking indicating switch

Info

Publication number: CN212907503U
Application number: CN202022162992.1U
Authority: CN
Inventors: 李方礼; 李方刚
Original assignee: Wenzhou North Electronic Machinery Co ltd
Current assignee: Wenzhou North Electronic Machinery Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-04-06
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to a parking braking indicating switch, which comprises a shell, a base and pins, wherein the shell is internally provided with a mounting cavity and a push rod channel, the base can be matched on the mounting cavity, the base is provided with a pin opening, the pins are arranged on the pin opening, the upper ends of the pins comprise fixing heads, the fixing heads penetrate through the pin opening to the upper end surface of the base, the fixing heads are connected with contact pins, the lower ends of the contact pins comprise inward bent lower hems, the upper ends of the contact pins comprise inward bent upper hems, the lower hems are riveted with the fixing heads and are propped against the base, the base is provided with an elastic mechanism, the elastic mechanism is provided with a contact cap, the contact cap comprises an outer flanging which can be contacted with the upper hems, the push rod channel is internally provided with a push rod, and the upper end of the push rod penetrates out of the shell, the lower extreme setting of push rod is on the upper end of contact cap, the utility model discloses stable in structure is reliable to assemble easily.

Description

Parking braking indicating switch

Technical Field

The utility model relates to an indicating switch technical field, especially a parking braking indicating switch.

Background

The parking brake indicating switch has the function of displaying whether the hand brake is pulled up or not, the hand brake is in a release state, namely the signal switch is in a circuit-breaking state, and the signal lamp is not on when the vehicle runs. When the parking pull-up hand brake, the signal switch is in the on state, forms the return circuit, and the signal lamp lights, gives the signal that the driver stopped the car, and current parking braking indicating switch inner structure sets up and is not reasonable, and is reliable and stable inadequately during the use, and the structure inside the parking braking indicating switch that has in addition is comparatively troublesome complicated in the assembly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a stable in structure is reliable to the parking braking indicating switch who assembles has been carried out easily, has solved the above-mentioned problem that exists among the prior art in the use.

The technical scheme of the utility model is realized like this: a parking brake indicating switch comprises a shell, a base and pins, wherein a mounting cavity with a downward opening and a push rod channel with an upward opening are arranged in the shell, the push rod channel is communicated with the mounting cavity, the base can be matched on the mounting cavity, two symmetrical pin openings are formed in the base, the pins are provided with two pins and are matched on the pin openings, the upper ends of the pins comprise fixing heads, the fixing heads penetrate through the upper end face of the base through the pin openings, the fixing heads are connected with contact pins, the lower ends of the contact pins comprise lower folded edges which are bent inwards, the upper ends of the contact pins comprise upper folded edges which are bent inwards, the lower folded edges are riveted with the fixing heads and abut against the base, an elastic mechanism is arranged in the center of the base, a contact cap is arranged on the elastic mechanism, and the contact cap comprises outer folded edges which can be used for contacting with the upper folded edges, the push rod channel is internally provided with a push rod, the upper end of the push rod penetrates out of the shell, and the lower end of the push rod is arranged on the upper end of the contact cap.

Preferably, the elastic mechanism comprises an adjusting screw, a spring seat and a spring, the adjusting screw is fixedly connected to the base, the spring seat is in threaded connection with the adjusting screw, the lower end of the spring abuts against the spring seat, and the upper end of the spring abuts against the contact cap.

Preferably, the spring seat comprises a clamping convex seat which is in clearance fit with the inner side of the lower end of the spring, the contact cap is provided with a clamping groove which is sunken upwards, and the upper end of the spring can be in clearance fit with the clamping groove.

Preferably, the base is provided with a guard plate protruding upwards, and the guard plate is arranged on the outer side of the contact pin and abuts against the outer side of the contact pin.

Preferably, a white diaphragm is arranged between the push rod and the contact cap, and a fixing assembly used for fixing the edge of the white diaphragm is arranged in the mounting cavity.

Preferably, the fixed subassembly is including seal ring, plastic gasket, metal gasket and fixed block, the shell is equipped with downward convex snap ring on the top of installation cavity, seal ring cooperation is on the snap ring, the plastic gasket sets up in the seal ring below, the metal gasket sets up in the plastic gasket below, the fixed block support in the metal gasket below and with shell fixed connection, the edge of white diaphragm is compressed tightly between seal ring and plastic gasket.

Preferably, the lower end of the push rod is provided with a rubber cushion layer.

To sum up, the beneficial effects of the utility model reside in that:

1. when the hand brake is put down, the hand brake presses the upper end of the push rod, so that the push rod moves downwards, and in the process of moving downwards, the lower end of the push rod drives the contact cap to move downwards, the contact cap is separated from the contact with the contact pin when moving downwards, thereby the circuit is disconnected, the signal lamp on the instrument panel is also extinguished, when the hand brake is pulled up, the elastic mechanism is reset to drive the contact cap to upwards contact with the contact pin again to form a loop, the signal lamp on the instrument panel is lightened, the utility model has simple structure and is stable and reliable in use, wherein the elastic mechanism comprises an adjusting screw, a spring seat and a spring, the spring seat is connected with the adjusting screw through a screw thread, therefore, the spring seat can move up and down on the adjusting screw, the structure is high in adaptability, and the spring is convenient to be located at a proper position between the contact cap and the spring seat. And when assembling, can insert the contact foot on the plug foot mouth and rivet earlier with the fixed head on the plug foot, then pack the spring holder into adjusting screw, pack adjusting screw to the base again on, later with contact cap dress spring push down to the last hem below of contact foot, put into the push rod passageway with the push rod at last, pack the base into the installation intracavity can, convenient assembling is swift.

2. The clamping convex seat on the spring seat and the clamping groove on the contact cap can more stably and reliably limit the spring, so that the spring is more stable in compression reset.

3. The guard plate abutting against the outer side of the contact pin can ensure that the contact pin is not easy to deform outwards, and the stability of the structure is further ensured.

4. The white diaphragm has excellent deformability, and high pressure resistance, its effect can prevent that moisture from getting into from the push rod passageway, and seal ring and the plastic pad in the fixed subassembly compress tightly the edge of white diaphragm, can effectively strengthen the sealing performance at white diaphragm edge.

5. The lower end of the push rod is provided with a rubber cushion layer, so that the damage of the push rod to the white diaphragm can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a cross-sectional view of the present invention.

In the figure: 1. a housing; 11. a mounting cavity; 12. a push rod channel; 13. a snap ring; 2. a base; 21. a pin port; 22. a guard plate; 3. a pin; 31. a fixed head; 4. a contact pin; 41. folding the lower edge; 42. folding the edges; 5. a contact cap; 51. flanging; 52. a clamping groove; 6. push rod, 61, rubber cushion layer; 7. a white membrane sheet; 81. adjusting screws; 82. a spring seat; 821. clamping the convex base; 83. a spring; 91. a sealing gasket; 92. a plastic gasket; 93. a metal gasket; 94. and (5) fixing blocks.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1-2 of the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Examples

As shown in fig. 1 to 2, the utility model discloses a parking brake indicating switch, which comprises a housing 1, a base 2 and a pin 3, wherein the housing 1 is internally provided with a mounting cavity 11 with a downward opening and a push rod channel 12 with an upward opening, the push rod channel 12 is communicated with the mounting cavity 11, the base 2 can be matched on the mounting cavity 11, the base 2 is provided with two symmetrical pin openings 21, the pin 3 is provided with two pins and is matched on the pin openings 21, the upper end of the pin 3 comprises a fixing head 31, the fixing head 31 penetrates through the pin openings 21 to the upper end surface of the base 2, the fixing head 31 is connected with a contact pin 4, the lower end of the contact pin 4 comprises an inward bent lower folded edge 41, the upper end of the contact pin 4 comprises an inward bent upper folded edge 42, the lower folded edge 41 is riveted with the fixing head 31 and is abutted against the base 2, an elastic mechanism is arranged in the center of the base 2, a contact cap 5 is arranged on the elastic mechanism, an outward flange 51 which can be used for being in contact with the upper flange 42 is arranged on the contact cap 5, a push rod 6 is arranged in the push rod channel 12, the upper end of the push rod 6 penetrates out of the shell 1, and the lower end of the push rod 6 is arranged on the upper end of the contact cap 5.

Wherein, elastic mechanism is including adjusting screw 81, spring holder 82 and spring 83, adjusting screw 81 fixed connection is on base 2, spring holder 82 threaded connection is on adjusting screw 81, the lower extreme of spring 83 is contradicted on spring holder 82, the upper end of spring 83 is contradicted on contact cap 5.

The utility model discloses a theory of operation: when a car owner puts down a handbrake (not shown in the figure), the handbrake can press to the upper end of the push rod 6, so that the push rod 6 moves downwards, the lower end of the push rod 6 can drive the contact cap 5 to move downwards, the contact cap 5 is downward separated from contact with the contact pins 4, and a circuit is disconnected, so that a signal lamp (not shown in the figure) on an instrument panel is also extinguished, when the handbrake is pulled, a spring on the elastic mechanism can reset, the contact cap 5 is driven to upwards contact with the contact pins 4 again, a loop is formed, and the signal lamp on the instrument panel is turned on.

The utility model discloses a structure is when assembling, can insert earlier the fixed head 31 of participating in on 3 and participate in mouthful 21 and rivet contact foot 4, then pack into adjusting screw 81 with spring holder 82 in, on packing into base 2 with adjusting screw 81 again, later will contact 5 dress springs 83 of cap and push down contact foot 5 go up hem 42 below, put into push rod passageway 12 with push rod 6 at last, pack into base 2 in the installation cavity 11 can, convenient assembling is swift.

In order to provide the spring 83 more firmly and stably between the spring seat 82 and the contact cap 5, the spring seat 82 includes an engaging projection 821 for being loosely fitted on the inner side of the lower end of the spring 83, the contact cap 5 has an upwardly recessed engaging groove 52, and the upper end of the spring 83 is loosely fitted in the engaging groove 52.

In order to prevent the contact pin 4 from being deformed due to the outward inclination caused by the force, the base 2 is provided with a guard plate 22 protruding upward, and the guard plate 22 is arranged on the outer side of the contact pin 4 and forms a support against the outer side of the contact pin 4.

The utility model discloses in, in order to prevent that moisture from getting into from push rod passageway 12, be provided with white diaphragm 7 between push rod 6 and the contact cap 5, be equipped with in the installation cavity 11 and be used for carrying out the fixed subassembly fixed to white diaphragm 7 edge, white diaphragm 7 has excellent deformability, and high pressure resistance can, does not influence the push rod and promotes contact cap 5.

The fixing assembly comprises a sealing washer 91, a plastic gasket 92, a metal gasket 93 and a fixing block 94, the shell 1 is provided with a clamping ring 13 protruding downwards on the top of the installation cavity 11, the sealing washer 91 is matched on the clamping ring 13 and is firm and reliable, the plastic gasket 92 is arranged below the sealing washer 91, the metal gasket 93 is arranged below the plastic gasket 92, the fixing block 94 is supported below the metal gasket 93 and is fixedly connected with the shell 1, the edge of the white membrane 7 is pressed between the sealing washer 91 and the plastic gasket 92, and the structure can firmly and reliably fix the edge of the white membrane 7 and can enhance the sealing performance of the edge of the white membrane 7.

The utility model discloses in, the lower extreme of push rod 6 is equipped with rubber cushion 61, and rubber cushion 61 can avoid push rod 6 to cause the damage to white diaphragm 7.

The utility model that should point out simultaneously indicates the terminology, like: the directional or positional relationships indicated as "front", "rear", "vertical", "horizontal", etc. are based on the directional or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but are not intended to 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 should not be construed as limiting the scope of the invention.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a parking braking indicating switch, includes shell (1), base (2) and participates in (3), its characterized in that: the improved plug pin structure is characterized in that an installation cavity (11) with a downward opening and a push rod channel (12) with an upward opening are arranged in the shell (1), the push rod channel (12) is communicated with the installation cavity (11), the base (2) can be matched on the installation cavity (11), two symmetrical pin openings (21) are formed in the base (2), two pins (3) are arranged and matched on the pin openings (21), the upper end of each pin (3) comprises a fixing head (31), the fixing heads (31) penetrate through the pin openings (21) to the upper end face of the base (2), the fixing heads (31) are connected with contact pins (4), the lower ends of the contact pins (4) comprise lower folded edges (41) which are bent inwards, the upper ends of the contact pins (4) comprise upper folded edges (42) which are bent inwards, the lower folded edges (41) are riveted with the fixing heads (31) and abut against the base (2), be provided with elastic mechanism in the center of base (2), be provided with contact cap (5) on the elastic mechanism, including flanging (51) that can be used for contacting with last hem (42) on contact cap (5), be equipped with push rod (6) in push rod passageway (12), the upper end of push rod (6) pierces through shell (1), the lower extreme setting of push rod (6) is on the upper end of contact cap (5).

2. The parking brake indication switch according to claim 1, characterized in that: elastic mechanism is including adjusting screw (81), spring holder (82) and spring (83), adjusting screw (81) fixed connection is on base (2), spring holder (82) threaded connection is on adjusting screw (81), the lower extreme of spring (83) is contradicted on spring holder (82), the upper end of spring (83) is contradicted on contact cap (5).

3. The parking brake indication switch according to claim 2, wherein: the spring seat (82) comprises a clamping convex seat (821) which is in clearance fit with the inner side of the lower end of the spring (83), the contact cap (5) is provided with a clamping groove (52) which is concave upwards, and the upper end of the spring (83) can be in clearance fit with the clamping groove (52).

4. The parking brake indication switch according to claim 1, characterized in that: the base (2) is provided with a guard plate (22) protruding upwards, and the guard plate (22) is arranged on the outer side of the contact pin (4) and abuts against the outer side of the contact pin (4).

5. The parking brake indication switch according to claim 1, characterized in that: a white membrane (7) is arranged between the push rod (6) and the contact cap (5), and a fixing assembly used for fixing the edge of the white membrane (7) is arranged in the mounting cavity (11).

6. The parking brake indication switch according to claim 5, wherein: fixed subassembly is including seal ring (91), plastic gasket (92), metal gasket (93) and fixed block (94), shell (1) is equipped with convex snap ring (13) down on the top of installation cavity (11), seal ring (91) cooperation is on snap ring (13), plastic gasket (92) set up in seal ring (91) below, metal gasket (93) set up in plastic gasket (92) below, fixed block (94) support in metal gasket (93) below and with shell (1) fixed connection, the edge of white diaphragm (7) is compressed tightly between seal ring (91) and plastic gasket (92).

7. The parking brake indication switch according to claim 1, characterized in that: the lower end of the push rod (6) is provided with a rubber cushion layer (61).