CN210265614U

CN210265614U - Alarm self-adjusting arm

Info

Publication number: CN210265614U
Application number: CN201920863771.1U
Authority: CN
Inventors: 赵志刚; 徐跃荣; 石峰
Original assignee: Shanxi Fengrun Zhongsheng Auto Parts Manufacturing Co ltd
Current assignee: Shanxi Fengrun Zhongsheng Auto Parts Manufacturing Co ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-04-07
Anticipated expiration: 2029-06-10

Abstract

The utility model provides an alarm self-modulation arm, including self-modulation arm body, self-modulation arm body has the casing, worm wheel and apron, and one side is equipped with at least one arch or recess on the terminal surface of worm wheel, is close to arch or recess on the worm wheel and carves and be equipped with the scale mark, sets up the annular groove who contains protruding movement track on the apron or the casing that arch or recess correspond, has seted up the ladder-shaped hole on the annular groove, and the downthehole installation of ladder-shaped has the electronic switch who normally opens/normally closed contact, and electronic switch circuit is connected with audible-visual alarm circuit. The utility model is provided with a bulge or a groove on the worm wheel, a hole is arranged on the cover plate or the shell, an electronic switch is arranged in the hole, and the switch is connected with a power supply, an alarm lamp or a loudspeaker in series by a lead to form a circuit which is disconnected or closed at ordinary times; normally, the closed circuit can display a signal that the circuit works normally; when the brake lining is worn to the extent that the brake lining needs to be replaced, the bulge or the pit changes the normally open or normally closed state of the switch, so that the alarm lamp or the horn sends out an alarm signal.

Description

Alarm self-adjusting arm

Technical Field

The utility model relates to a conveying rotary motion's stopper technical field, concretely relates to warning self-modulation arm.

Background

The national standard mandatory requirement of GB7258-2017 is met: when the lining of the service brake of a vehicle such as a truck provided with the self-adjusting arm needs to be replaced, the driver is reminded by an acoustic or optical device.

Disclosure of Invention

In order to solve the problems, the utility model provides a safe and reliable, simple structure, light weight unobstructed, lower cost warning self-modulation arm.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an alarm self-modulation arm, includes the self-modulation arm body, the self-modulation arm body has casing, worm wheel and apron, one side is equipped with at least one arch or recess on the terminal surface of worm wheel, is close to on the worm wheel arch or recess are carved with the scale mark, set up the annular groove who contains protruding movement track on the apron or the casing that arch or recess correspond, the ladder-shaped hole has been seted up on the annular groove, the downthehole installation of ladder-shaped has the electronic switch of normally opening/normally closed contact, electronic switch circuit connection has audible-visual alarm circuit.

Preferably, the electronic switch is one of a tact switch or a microswitch, the audible and visual alarm circuit comprises a power supply, an alarm lamp or a loudspeaker, and the electronic switch is electrically connected with the power supply, the alarm lamp or the loudspeaker to form a normally open or normally closed circuit.

Preferably, one side is equipped with two equipartition or non-equipartition archs on the terminal surface of worm wheel, the scale mark is the annular.

Preferably, the annular groove is arranged along the contour of the projection.

Preferably, the protrusions have a hemispherical structure.

Preferably, the diameter of the annular groove is slightly larger than the diameter of the protrusion.

Preferably, the alarm lamp or the loudspeaker can be connected with an electric self-locking device or a mechanical self-locking device, so that the contact time of the protrusion and the electronic switch is shortened, and the normal work of the self-adjusting arm is prevented from being influenced during alarming.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the utility model is provided with a bulge or a groove on the worm wheel without changing the original self-adjusting arm structure, a hole is arranged on the cover plate or the shell, an electronic switch is arranged in the hole, and the switch is connected with a power supply, an alarm lamp or a loudspeaker in series by a lead to form a circuit which is disconnected or closed at ordinary times; normally, the closed circuit can display a signal that the circuit works normally; when the brake lining is worn to be replaced, the bulge or the pit changes the normally open or normally closed state of the switch, so that the alarm lamp or the horn sends out an alarm signal;

2. the utility model is convenient for installation and debugging, and the scale marks are carved on the worm wheel, and simultaneously, the scale marks can also be arranged on the cover plate;

3. the utility model can add the ring groove containing the motion trail of the bulge at the inner side of the cover plate or the inner side of the shell, and prevent the bulge from being worn by the fine motion in the axial direction when the worm wheel works;

4. the utility model discloses an electric self-lock device or mechanical self-lock device can be connected to alarm lamp or loudspeaker shortens above-mentioned arch and above-mentioned switch contact time, influences the normal work of self-modulation arm when avoiding reporting to the police.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a top view of the worm gear of the present invention;

fig. 2 is a schematic structural view of embodiment 1 of the present invention;

fig. 3 is a schematic structural view of embodiment 2 of the present invention.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1

The present embodiment is directed to a self-adjusting arm having two cover plates.

The utility model provides an alarm self-modulation arm, includes the self-modulation arm body, the self-modulation arm body has casing 1, worm wheel 2 and apron 6, one side is equipped with at least one arch 3 or recess on the terminal surface of worm wheel 2, is close to on the worm wheel 2 arch 3 or recess are carved with the scale mark, set up the annular groove 4 that contains protruding 3 motion trails on the apron 6 that arch 3 or recess correspond, stepped hole 5 has been seted up on annular groove 4, the electronic switch that normally open/normally closed contact has in the installation of stepped hole 5, electronic switch circuit connection has audible-visual alarm circuit.

The electronic switch is one of a tact switch or a microswitch, the acousto-optic alarm circuit comprises a power supply, an alarm lamp or a loudspeaker, and the electronic switch is electrically connected with the power supply, the alarm lamp or the loudspeaker to form a normally open or normally closed circuit.

One side is equipped with two equipartitions or non-equipartition archs 3 on the terminal surface of worm wheel 2, the scale mark is the annular.

The annular groove 4 is arranged along the contour of the projection 3.

The protrusions 3 are of a hemispherical structure.

The diameter of the annular groove 4 is slightly larger than the diameter of the protrusion 3.

The alarm lamp or the loudspeaker can be connected with an electric self-locking device or a mechanical self-locking device, so that the contact time of the bulge 3 and the electronic switch is shortened, and the normal work of the self-adjusting arm is prevented from being influenced during alarming.

Electrical or mechanical self-locking means will be readily apparent to those skilled in the art.

Example 2

In addition to embodiment 1, the self-adjusting arm with a cover plate 6 is modified to enrich the disclosure of the invention.

The utility model provides an alarm self-modulation arm, includes the self-modulation arm body, the self-modulation arm body has casing 1, worm wheel 2 and apron 6, one side is equipped with at least one arch 3 or recess on the terminal surface of worm wheel 2, is close to on the worm wheel 2 arch 3 or recess are carved and are equipped with the scale mark, set up the annular groove 4 that contains protruding 3 motion trails on the casing 1 that arch 3 or recess correspond, stepped hole 5 has been seted up on annular groove 4, the electronic switch that normally open/normally closed contact has in the installation of stepped hole 5, electronic switch circuit connection has audible-visual alarm circuit.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination 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 an alarm self-modulation arm, includes the self-modulation arm body, the self-modulation arm body has casing, worm wheel and apron, its characterized in that, one side is equipped with at least one arch or recess on the terminal surface of worm wheel, is close to on the worm wheel the arch or recess are carved with the scale mark, set up the annular groove who contains protruding movement track on the apron or the casing that arch or recess correspond, the ladder-shaped hole has been seted up on the annular groove, the downthehole installation of ladder-shaped has the electronic switch of normally opening/normally closed contact, electronic switch circuit connection has audible-visual alarm circuit.

2. The alarm self-adjusting arm according to claim 1, wherein the electronic switch is one of a tact switch or a microswitch, the audible and visual alarm circuit comprises a power supply, an alarm lamp or a horn, and the electronic switch is electrically connected with the power supply, the alarm lamp or the horn to form a normally open or normally closed circuit.

3. An alarm self-adjusting arm according to claim 1, wherein two uniform or non-uniform protrusions are arranged on one side of the end face of the worm wheel, and the scale mark is annular.

4. An alarm tone arm according to claim 1, wherein the annular groove is provided along the contour of the projection.

5. The alarm autolevel as recited in claim 4, wherein the protrusion is of a hemispherical configuration.

6. The alarm self-tuning arm of claim 5 wherein the diameter of the annular groove is slightly larger than the diameter of the protrusion.

7. The alarm self-adjusting arm according to claim 2, wherein the alarm lamp or the horn is connectable to an electrical or mechanical self-locking device to shorten the contact time of the protrusion with the electronic switch and avoid affecting the normal operation of the self-adjusting arm during alarming.