A parking brake wire drawing mechanism
A wire-drawing and toggle-column technology, applied in the direction of brakes, brake transmissions, mechanical brake transmissions, etc., can solve the problems of reduced parking braking capacity, reduced brake shoes, complicated operation, etc. The effect of stroke, reduced workload, and reduced length
Inactive Publication Date: 2021-09-28
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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Problems solved by technology
[0002] With the wear of the drum brake friction plate, the free stroke of the parking brake lever will increase, and the total stroke transmitted to the parking brake handle will increase accordingly, gradually exceeding the working stroke of the parking brake handle. In this way, the force acting on the brake shoe will be correspondingly reduced, which will reduce the parking braking capacity and cannot meet the requirements of the vehicle for parking braking capacity. It is often necessary to manually adjust the adjustment wire on the outer sheath of the parking wire by the operator. The sheath increases the length of the wire drawing outer sheath, reduces the length between the wire drawing end and the outer sheath, and reduces the free travel of the parking brake swing arm to meet the vehicle's requirements for parking brake capabilities. The workload of the operator, and the operation is cumbersome
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[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0050] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.
[0051] In addition, if there are descriptions involving "first", "second" and ...
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The invention discloses a parking brake wire drawing mechanism, which includes a housing, a wire drawing assembly, an adjustment wire drawing sheath and an adjustment assembly. The housing is formed with an installation cavity extending along the front and rear directions. The drawing, the drawing is installed in the installation cavity along the front and rear movement, the adjustment drawing sheath is set on the drawing, one end of the adjustment drawing sheath is installed in the installation cavity along the front and rear movement, the adjustment component is located in the installation cavity, connected with the drawing drive to drive Adjust the activity of the drawing sheath, and drive the adjustment of the drawing sheath through the adjustment component, so that the adjustment drawing sheath moves away from the installation cavity, and realize the automatic adjustment of the adjustment drawing sheath on the parking drawing outer sheath, reducing the contact between the drawing end and the outer sheath. The length of the set reduces the free stroke of the parking brake swing arm, reduces the workload of the operator, and is easy to operate.
Description
technical field [0001] The invention relates to the technical field of automobile parking brake systems, in particular to a parking brake wire drawing mechanism. Background technique [0002] With the wear of the drum brake friction plate, the free stroke of the parking brake lever will increase, and the total stroke transmitted to the parking brake handle will increase accordingly, gradually exceeding the working stroke of the parking brake handle. In this way, the force acting on the brake shoe will be correspondingly reduced, which will reduce the parking braking capacity and cannot meet the requirements of the vehicle for parking braking capacity. It is often necessary to manually adjust the adjustment wire on the outer sheath of the parking wire by the operator. The sheath increases the length of the wire drawing outer sheath, reduces the length between the wire drawing end and the outer sheath, and reduces the free travel of the parking brake swing arm to meet the vehi...
Claims
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IPC IPC(8): B60T11/04
CPCB60T11/046
Inventor 孙光仙孙海燕刘天伍何敬梅
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD