CN219626496U - Travel trigger switch device - Google Patents

Abstract

The utility model belongs to the technical field of automobile parts, and provides a range trigger switch device which comprises a device shell, an elastic piece, a switch shell, a signal switch and a trigger mechanism. The utility model uses the traditional mechanical trigger structure, controls the stroke of the stay bar more accurately, meets higher requirements on the use environment and service life, provides the buffer/rebound function for the trigger switch by the self characteristic of the elastic piece, prevents the damage and failure of the overvoltage signal switch under special conditions, ensures that the trigger signal is more accurate and timely due to the sensitivity characteristic of the signal switch, and simultaneously, the built-in stroke trigger switch device of the stay bar can supplement the original Hall signal counting device and calibrate each other.

Description

Travel trigger switch device

Technical Field

The utility model belongs to the technical field of automobile parts, and particularly relates to a travel trigger switch device.

Background

The current stroke trigger device structure is composed of a motor, a magnetic disc and a Hall sensor, the combined motion structure is formed by the motor and the magnetic disc is carried at the tail part of the motor, the motor drives the magnetic disc to rotate in the rotating process, each magnetic field uniformly distributed on the magnetic disc simultaneously outputs 1 pulse and counts when passing through Hall components on the Hall sensor, and when the count value reaches a preset value, a stay bar stroke in-place signal is output.

In the prior art, when the stay bar is used for a long time, under special conditions or severe environmental conditions or under the condition of complex movement process, a certain range of errors exist in pulse counting output by the Hall element when the stay bar is expanded and contracted, and the accumulated errors affect the actual stroke value of the stay bar, so that the stay bar cannot reach the designated position and length. The product is limited in useful life.

Disclosure of Invention

In order to overcome the above-described drawbacks of the prior art, the present utility model provides a travel trigger switch device comprising:

the device comprises a device shell, an elastic piece, a switch shell, a signal switch and a trigger mechanism;

the elastic piece, the switch shell and the signal switch are arranged in the device shell;

the signal switch is positioned in the switch shell;

the elastic piece is positioned between the switch shell and the device shell;

when the trigger mechanism is in contact with the signal switch, the signal switch is in a signal generating state.

Preferably, the device housing is provided with a first groove and a wire outlet hole, the first groove is communicated with the wire outlet hole, the elastic piece and the switch housing are positioned in the first groove, and the elastic piece is positioned between the bottom of the first groove and the switch housing.

Preferably, the outer diameter of the switch housing is smaller than the notch diameter of the first groove.

Preferably, the switch shell is provided with a second groove and a through hole, the second groove is communicated with the through hole, and the signal switch is matched with the second groove.

Preferably, the signal switch is provided with a wire harness, and the wire harness penetrates through the through hole and extends out of the wire outlet hole.

Preferably, the elastic member is a compression spring member.

Preferably, the triggering mechanism comprises a catheter and a push rod, and the push rod is positioned in the catheter.

Preferably, a guide groove is arranged in the guide pipe, and the ejector rod is in sliding fit with the guide groove.

Preferably, a contact surface for contacting the signal switch is arranged on the ejector rod.

Preferably, the triggering mechanism is fixedly connected with the device housing through the catheter.

Compared with the prior art, the utility model has the beneficial effects that:

the structure in this scheme has used traditional mechanical trigger structure, and is more accurate to travel control to travel trigger switch device, reaches higher requirement to service environment, life-span, and its elastic component provides buffering/resilience function for trigger switch through self characteristic, has prevented that the excessive pressure signal switch from causing the destruction under the special condition, malfunctioning, its signal switch's sensitive characteristic, lets trigger signal more accurate and timely, and the built-in travel trigger switch device of pole can supplement with original hall signal counting assembly simultaneously, calibrates each other.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an exploded view of the device housing, elastic member, switch housing, and signal switch of the present utility model.

Fig. 3 is a schematic diagram of a connection structure between a device housing and a trigger mechanism according to the present utility model.

Wherein:

1. the wire harness device comprises an outer pipe body, 2, a pipe body, 3, an inner pipe body, 4, a driving motor, 5, a braking device, 6, a spiral spring piece, 7, an annular base, 8, a screw rod piece, 9, a bearing piece, 10, a screw rod spline, 11, a stop piece, 12, a second groove, 13, a clamping ring, 14, a trapezoidal thread part, 15, a device shell, 16, an elastic piece, 17, a switch shell, 18, a signal switch, 19, a first groove, 20, a wire outlet hole, 21, a second groove, 22 and a wire harness.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. The embodiments of the present utility model and the features in the embodiments may be combined with each other without collision. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, and the described embodiments are merely some, rather than all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Examples:

as shown in fig. 1 to 3, in this embodiment, there is provided a travel trigger switch device including:

a device housing 15, an elastic member 16, a switch housing 17, a signal switch 18, and a trigger mechanism;

the elastic piece 16, the switch shell 17 and the signal switch 18 are arranged in the device shell 15;

the signal switch 18 is in the switch housing;

the elastic piece is positioned between the switch shell and the device shell;

when the trigger mechanism is in contact with the signal switch, the signal switch is in a signal generating state;

in this embodiment, the trigger mechanism may move relative to the position of the signal switch, when the trigger mechanism contacts with the signal switch, the signal switch is in a signal generating state, that is, outputs a in-place signal, and the in-place signal is triggered by converting the pulse count into a mechanical structure, so that the trigger mechanism is more stable and accurate, and meanwhile, the service life of the mechanical mechanism is longer.

The specific structure of the device housing 15 of the present embodiment is as follows:

the device housing 15 is provided with a first groove 19 and a wire outlet hole 20, the first groove 19 is communicated with the wire outlet hole 20, the elastic piece 16 and the switch housing 17 are positioned in the first groove 19, and the elastic piece 16 is positioned between the bottom of the first groove 19 and the switch housing 17.

Specifically, the switch housing 17 is cylindrical in shape, the first groove 19 is circular in cross-sectional shape, and the outer diameter of the switch housing 17 is smaller than the notch diameter of the first groove 19.

Specifically, the switch housing 17 is provided with a second groove 21 and a through hole, the second groove 21 is communicated with the through hole, and the signal switch 18 is matched with the second groove 21, wherein the second groove 21 has a rectangular groove structure.

Specifically, the signal switch 18 is provided with a wire harness 22, and the wire harness 22 passes through the through hole and extends out of the wire outlet hole 20.

Specifically, the elastic member 16 is a compression spring member.

The triggering mechanism comprises a catheter and a push rod, the push rod is positioned in the catheter, the specific structure of the catheter in the embodiment comprises an outer tube body 1 and a catheter body 2, wherein the outer tube body 1 and the catheter body 2 are of hollow tube body structures which are concentric and coaxial, the inner diameter of the catheter body 2 is larger than the outer diameter of the outer tube body 1, so that the catheter body 2 can be sleeved in the outer tube body 1 and stretches out and draws back, two ends of the outer tube body 1 are respectively connected with the catheter body 2 and the device shell 15, the connection between the outer tube body 1 and the device shell 15 can adopt other connection modes such as threaded connection or riveting, the connection stability between the outer tube body 1 and the catheter body 2 is ensured, and the release is prevented; the guide groove is arranged in the outer pipe body 1, the guide groove is specifically of a structure of the inner pipe body 3, and the ejector rod is in sliding fit with the inner pipe body 3. The catheter body 2 is internally provided with a driving device or a driving connection installation position which can act on the relative movement of the ejector rod in the inner catheter body 3, and can adopt manual driving or electric driving to move the ejector rod, in the embodiment, the driving device is a driving motor 4, the driving end of the driving motor 4 is connected with one end of the ejector rod, and the other end of the ejector rod is provided with a contact surface for contacting a signal switch and propping against a travel trigger switch device.

The catheter body 2 is also internally provided with a braking device 5 and a spiral spring piece 6, the spiral spring piece 6 is sleeved on the inner tube body 3, the braking device 5 is connected with the ejector rod, one end, far away from the outer tube body 1, of the catheter body 2 is provided with an annular base 7, and two ends of the spiral spring piece 6 respectively lean against the braking device 5 and the annular base 7.

In this embodiment, the structure of the ejector pin specifically includes a wire rod member 8, a bearing member 9 and a screw rod spline 10, the wire rod member 8 is connected with the driving end of the driving motor 4 through the screw rod spline 10, the bearing member 9 is sleeved on the wire rod member 8, the braking device 5 is sleeved on the bearing member 9, a stop member 11 fixed by riveting and pressing is arranged at one end of the screw rod member 8 far away from the screw rod spline 10, and the outer diameter of the stop member 11 is matched with the inner diameter of the inner tube body 3.

A second groove 12 is provided in the wire member 8 at the connection with the bearing member 9, and a collar 13 is provided in the second groove 12.

Meanwhile, a trapezoidal thread part 14 is arranged on the inner wall surface of the inner pipe body 3, and a trapezoidal thread part 14 meshed with the outer wall surface of the wire rod piece 8 is arranged on the outer wall surface of the wire rod piece.

When the driving motor 4 drives, the output torque is transmitted to the screw spline 10 and drives the screw rod member 8 to rotate, and the inner tube body 3 can be driven to shrink inwards because the meshed trapezoidal thread part 14 is arranged between the screw rod member 8 and the inner tube body 3. In this embodiment, the inner tube 3 is an aluminum catheter structure.

The device housing 15 of the present embodiment is engaged with the inner tube 3 by threads, and the ejector rod has the following specific movement principle:

when the driving motor 4 drives, the screw rod part 8 rotates and drives the inner pipe body 3 to shrink, the stay rod is in a compressed state, the end face of the screw rod part 8 compresses the signal switch 18, when the compression amount reaches 1.5-2mm, the stay rod is in place, the signal switch 18 outputs a signal in place, when in compression, the elastic part 16 provides a buffering effect, the phenomena of damage and failure of the signal switch 18 caused by hard contact are avoided, the external force is removed when the stay rod extends, and rebound and reset of the signal switch 18 and the switch shell 17 are realized under the action of the elastic part 16.

Therefore, the structure of this embodiment uses the traditional mechanical triggering structure, controls the stroke of the stay bar more accurately, meets higher requirements on the service environment and service life, and the elastic piece 16 provides buffering/rebound functions for the triggering switch through the characteristics of the elastic piece, so that the damage and failure caused by the overvoltage signal switch 18 under special conditions are prevented, the sensitivity of the signal switch 18 is improved, the triggering signal is more accurate and timely, and meanwhile, the built-in stroke triggering switch device of the pole can supplement the original Hall signal counting device and calibrate each other.

In the structure of this embodiment, a travel trigger switch mechanism is added inside the stay bar, and when the stay bar reaches the rated length, the internal structure is contacted with the signal switch 18 to output a in-place signal, and the in-place signal is triggered by converting pulse counting into a mechanical structure, so that the trigger can be more stable and accurate, and the service life of the mechanical mechanism is longer.

The present utility model is not limited to the preferred embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical principles of the present utility model are within the scope of the technical proposal of the present utility model.

Claims (10)

1. A travel trigger switch device, comprising:

the device comprises a device shell, an elastic piece, a switch shell, a signal switch and a trigger mechanism;

the elastic piece, the switch shell and the signal switch are arranged in the device shell;

the signal switch is positioned in the switch shell;

the elastic piece is positioned between the switch shell and the device shell;

when the trigger mechanism is in contact with the signal switch, the signal switch is in a signal generating state.

2. The travel trigger switch device according to claim 1, wherein the device housing is provided with a first groove and a wire outlet hole, the first groove is communicated with the wire outlet hole, the elastic member and the switch housing are located in the first groove, and the elastic member is located between a groove bottom of the first groove and the switch housing.

3. The travel triggered switch apparatus of claim 2, wherein the switch housing has an outer diameter dimension that is less than a slot diameter dimension of the first recess.

4. A travel trigger switch assembly as claimed in claim 3 wherein said switch housing is provided with a second recess and a through hole, said second recess communicating with said through hole, said signal switch cooperating with said second recess.

5. The trip trigger switch device of claim 4, wherein said signal switch is provided with a wiring harness, said wiring harness extending through said through hole and out of said wire outlet hole.

6. The travel activated switch device of claim 1 wherein said resilient member is a compression spring member.

7. The travel trigger switch of claim 1 wherein the trigger mechanism comprises a conduit and a ram, the ram being within the conduit.

8. The trip trigger switch assembly of claim 7, wherein said guide tube has a guide slot therein, said push rod being in sliding engagement with said guide slot.

9. The trip trigger switch device of claim 8, wherein said push rod is provided with a contact surface for contacting said signal switch.

10. The travel trigger switch of claim 9, wherein the trigger mechanism is fixedly connected to the device housing by the conduit.