Manual parking brake capable of eliminating abnormal sound

Abstract

The utility model discloses a manual parking brake capable of eliminating abnormal sound, and belongs to the technical field of parking braking devices. Comprising a metal handle, a handle seat, a handle rotating shaft plate, a metal handle cavity cover plate and a metal push rod, one part of the metal handle is a straight-strip-shaped handle part, a push rod penetrating cavity is formed in the handle part, and the other part of the metal handle is a connecting part; the combined body of the handle rotating shaft plate and the metal handle cavity cover plate is fixedly connected with the connecting part and then is arranged on the handle seat in a rotating mode, and a metal push rod is arranged in a push rod penetrating cavity of the metal handle in a penetrating mode. The metal push rod is separated from the cavity wall of the push rod penetrating cavity through the noise reduction rubber ring. The utility model has the advantages that the metal push rod and the metal handle are isolated by the rubber material and are prevented from colliding with each other, so that an abnormal sound source is eliminated, and the operation comfort of a driver and the riding comfort of passengers are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of parking brake devices, and in particular relates to a manual parking brake capable of eliminating abnormal noise. Background Art

[0002] The working principle of the manual parking brake (handbrake for short) is mainly to connect the rear brake shoe to the steel wire to achieve the braking of the vehicle. Its function is to stabilize the vehicle after it stops, to prevent accidents caused by the vehicle rolling when parking on a slope, and to be used for emergency braking when the vehicle's braking system fails.

[0003] The manual parking brakes currently on the market are prone to produce abnormal noises during driving. The reason for the abnormal noises is that the metal push rod on the parking brake shakes and resonates during driving, collides with the inner wall of the metal handle, and produces abnormal noises, affecting the driving comfort of the driver and the passengers.

[0004] In view of the above-mentioned prior art, it is necessary to reasonably improve the structure of the existing parking brake. For this reason, the applicant has made a useful design, and the technical solution to be introduced below is produced under this background. Utility Model Content

[0005] The task of the utility model is to provide a manual parking brake that eliminates abnormal noise. A rubber material is used to isolate a metal push rod and a metal handle to avoid mutual collision between the two, thereby eliminating the source of the abnormal noise and improving the comfort of the driver's operation and the passengers' riding.

[0006] The task of the utility model is accomplished in this way. A manual parking brake for eliminating abnormal noise includes a metal handle, a handle seat, a handle shaft plate, a metal handle cavity cover plate and a metal push rod. A part of the metal handle is a straight handle portion, and a push rod insertion cavity is provided inside the handle portion. The other part of the metal handle is a connecting portion. A combination of the handle shaft plate and the metal handle cavity cover plate is fixedly connected to the connecting portion and rotatably arranged on the handle seat. A metal push rod is inserted in the push rod insertion cavity of the metal handle. The characteristic is that a noise reduction rubber ring is provided on the metal push rod, and the noise reduction rubber ring separates the metal push rod from the cavity wall of the push rod insertion cavity.

[0007] In a specific embodiment of the present invention, the noise reduction rubber ring is sleeved on a metal push rod, and the metal push rod is provided with stoppers at positions before and after the noise reduction rubber ring to prevent the noise reduction rubber ring from sliding forward and backward.

[0008] In another specific embodiment of the utility model, the outer circumference of the noise reduction rubber ring extends a flat disc body toward the wall of the cavity through which the push rod is inserted.

[0009] In another specific embodiment of the present utility model, the stopper is a noise reduction rubber ring limiting flange extending outward from the metal push rod.

[0010] In yet another specific embodiment of the present utility model, the noise reduction rubber ring limiting flange is an arc boss.

[0011] In another specific embodiment of the utility model, the connecting part includes a large side panel and a small side panel, the space between the large side panel and the small side panel is a handle seat installation cavity, the handle seat is inserted into the handle seat installation cavity from bottom to top, and the combination of the handle shaft plate and the metal handle cavity cover plate is installed on one side of the small side panel.

[0012] In another specific embodiment of the present invention, the parking brake also includes a lock plate and a lock tooth plate. A metal push rod button is fixed to one end of the metal push rod, and the other end is hingedly connected to one end of the lock plate. The lock plate is rotatably set on the metal handle through a lock plate shaft. The other end of the lock plate is machined with lock plate teeth, and the lock plate teeth are meshed with lock teeth on the lock tooth plate. The lock tooth plate clamping foot of the lock tooth plate is clamped in the clamping foot groove of the handle seat.

[0013] In a more specific embodiment of the present invention, the handle pivot plate is located between the handle seat and the metal handle cavity cover plate, and a handle pivot extending to both sides is provided in the middle of the handle pivot plate. The handle pivot on one side passes through the first axis hole I of the handle seat and is inserted into the axis hole on the large side plate, and the handle pivot on the other side is inserted into the second axis hole II of the metal handle cavity cover plate.

[0014] In yet another specific embodiment of the present invention, a rotation limit column extending to both sides is provided on the plate body of the handle pivot plate, the rotation limit column on one side passes through the arc-shaped rotation limit column slide groove of the handle seat and then is inserted into the first mounting hole I of the limit column on the large side plate, and the rotation limit column on the other side is inserted into the second mounting hole II of the limit column of the metal handle cavity cover plate.

[0015] In yet another specific embodiment of the utility model, a plurality of cover plate limiting bosses extend outwardly from the plate surface of the small side plate, and the cover plate limiting bosses are clamped in the limiting boss holes of the metal handle cavity cover plate, thereby fixing the combination of the metal handle cavity cover plate and the handle pivot plate to the metal handle.

[0016] The utility model has the following beneficial effects due to the adoption of the above structure: first, a rubber noise reduction ring is added to the metal push rod, so that the metal push rod and the metal handle are isolated by rubber material to avoid mutual collision between the two, thereby eliminating the source of abnormal noise, improving the comfort of the driver's operation and the passengers' riding, with a simple structure and ingenious design, and effectively solving the problems in the prior art; second, the noise reduction rubber ring is sleeved on the metal push rod, and stoppers are provided on the metal push rod at the front and rear positions of the noise reduction rubber ring to prevent the noise reduction rubber ring from sliding back and forth, thereby ensuring the stability of the installation of the noise reduction rubber ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an exploded view of the manual parking brake of the utility model;

[0018] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0019] Figure 3 It is a three-dimensional view of the handle seat of the manual parking brake of the utility model.

[0020] In the figure: 1. Metal handle, 11. Handle part, 111. Push rod penetration cavity, 12. Connecting part, 121. Large side plate, 1211. Rotating shaft hole, 1212. First mounting hole I of limiting column, 122. Small side plate, 1221. Limiting boss of cover plate, 123. Mounting cavity of handle seat; 2. Handle cover; 3. Handle seat, 31. Fixing ear of handle seat, 32. Foot embedding groove, 33. First shaft hole I, 34. Rotating limiting column slide groove; 4. Handle rotating shaft Plate, 41. handle shaft, 42. rotation limit column; 5. metal handle cavity cover plate, 51. second shaft hole II, 52. limit column second mounting hole II, 53. limit boss hole; 6. metal push rod, 61. noise reduction rubber ring, 611. disc body, 62. noise reduction rubber ring limit flange, 63. metal push rod button, 64. button sleeve; 7. lock plate, 71. lock plate shaft, 72. lock plate teeth; 8. lock tooth plate, 81. lock teeth, 82. lock tooth plate foot. DETAILED DESCRIPTION

[0021] The specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings, but the description of the embodiments is not a limitation of the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as the protection scope of the present invention.

[0022] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are based on the positions shown in the corresponding drawings. They are only used to facilitate the description of the technical solution provided by the utility model and simplify the description in conjunction with the drawings, and therefore cannot be understood as a special limitation on the technical solution provided by the utility model.

[0023] See also Figure 1 Combined with Figure 2 , Figure 3 The utility model relates to a manual parking brake for eliminating abnormal noise, comprising a metal handle 1, a handle cover 2, a handle seat 3, a handle shaft plate 4, a metal handle cavity cover plate 5, a metal push rod 6, a lock plate 7, and a lock tooth plate 8. The outer side of the metal handle 1 is sleeved with a handle cover 2, and the material of the handle cover 2 is not subject to any restrictions. In this embodiment, plastic is preferably used. The metal handle 1 is bent, with a portion being a straight handle portion 11, the handle portion 11 having a push rod penetration cavity 111, and the other portion being a connection portion 12 at a certain angle relative to the handle portion 11. The combination of the handle shaft plate 4 and the metal handle cavity cover plate 5 is fixedly connected to the connection portion 12 and then rotatably arranged on the handle seat 3.

[0024] like Figure 1 and Figure 2 As shown, a metal push rod 6 is inserted into the push rod insertion cavity 111 of the metal handle 1, and one or more noise reduction rubber rings 61 are provided on the metal push rod 6, and the noise reduction rubber ring 61 separates the metal push rod 6 from the cavity wall of the push rod insertion cavity 111. Further, the noise reduction rubber ring 61 is sleeved on the metal push rod 6. Stoppers are provided on the metal push rod 6 at the front and rear positions of the noise reduction rubber ring 61 to prevent the noise reduction rubber ring 61 from sliding forward and backward. In this embodiment, the stopper is a noise reduction rubber ring limiting flange 62 extending outward from the metal push rod 6, and the outer circumference of the noise reduction rubber ring 61 extends a flat disc body 611 toward the cavity wall of the push rod insertion cavity 111. The noise reduction rubber ring limiting flange 62 is an arc boss. The stopper can also be a retaining ring. A metal push rod button 63 is fixed at one end of the metal push rod 6, and a button cover 64 is sleeved on the end of the metal push rod button 63.

[0025] The connecting portion 12 includes a large side plate 121 and a small side plate 122, and the space between the large side plate 121 and the small side plate 122 constitutes a handle seat installation cavity 123. The handle seat 3 is inserted into the handle seat installation cavity 123 from bottom to top. The combination of the handle shaft plate 4 and the metal handle cavity cover plate 5 is installed on one side of the small side plate 122.

[0026] The other end of the metal push rod 6 is hingedly connected to one end of a lock plate 7, and the lock plate 7 is rotatably arranged on the metal handle 1 through a lock plate shaft 71. The other end of the lock plate 7 is processed with a lock plate tooth 72. The lock plate tooth 72 is meshed with a lock tooth 81 on a lock tooth plate 8, and a lock tooth plate clamping foot 82 of the lock tooth plate 8 is clamped in a clamping foot embedding groove 32 of the handle seat 3.

[0027] like Figure 1 and Figure 3 As shown, the handle base 3 has two extended handle base fixing ears 31, and the two handle base fixing ears 31 are folded to both sides to form a base that can be used for fixing.

[0028] The handle shaft plate 4 is located between the handle seat 3 and the metal handle cavity cover plate 5. One end of the handbrake harness is connected to the handle shaft plate 4. The other end of the handbrake harness is connected to the chassis of the car after passing through the handle shaft plate 4, and then connected to the rear brake shoe through a steel wire. A handle shaft 41 extending to both sides is provided in the middle of the handle shaft plate 4. The handle shaft 41 on one side passes through the first shaft hole Ⅰ33 of the handle seat 3 and is inserted into the shaft hole 1211 on the large side plate 121. The handle shaft 41 on the other side is inserted into the second shaft hole Ⅱ51 of the metal handle cavity cover plate 5. A rotation limit column 42 extending to both sides is provided on the plate body of the handle shaft plate 4. The rotation limit column 42 on one side passes through the arc-shaped rotation limit column slide groove 34 of the handle seat 3 and is then inserted into the first limit column mounting hole Ⅰ1212 on the large side plate 121. The rotation limit column 42 on the other side is inserted into the second limit column mounting hole Ⅱ52 of the metal handle cavity cover plate 5.

[0029] Several cover plate limiting bosses 1221 extend outward from the plate surface of the small side plate 122, and the cover plate limiting bosses 1221 are clamped in the limiting boss holes 53 of the metal handle cavity cover plate 5, so as to fix the combination of the metal handle cavity cover plate 5 and the handle rotating shaft plate 4 to the metal handle 1. At this point, the metal handle 1, the handle rotating shaft plate 4 and the metal handle cavity cover plate 5 are assembled together and rotate relative to the handle seat 3 through the handle rotating shaft 41.

[0030] Please continue reading Figures 1 to 3The working principle of the manual parking brake for eliminating abnormal noise described in the utility model is as follows: during driving, the metal handle 1 is at the bottom, at which time the lock plate teeth 72 are separated from the lock teeth 81 on the lock tooth plate 8. When parking is required, the metal push rod button 63 is pressed, and the lock plate teeth 72 on the lock plate 7 are pushed away from the lock tooth plate 8 by the metal push rod 6, and the handle portion 11 of the metal handle 1 is lifted upward. During the lifting process, the handle shaft plate 4 and the metal handle cavity cover plate 5 rotate with the metal handle 1, tightening the handbrake harness, so that the brake component brakes the wheel, making the car stop more stably. When the metal handle 1 reaches the top, the metal push rod button 63 is released, the lock plate 7 is reset under the action of the spring, and the lock plate teeth 72 on it are embedded in the lock teeth 81 of the lock tooth plate 8 to lock the metal handle 1, so that the brake is in a state of braking the wheel to prevent the car from slipping. When the vehicle needs to be driven, it is only necessary to press the metal push rod button 63. Under the push of the metal push rod 6, the lock plate teeth 72 on the lock plate 7 are away from the lock tooth plate 8, and the handle portion 11 of the metal handle 1 is pressed downward. During the downward movement of the handle portion 11 of the metal handle 1, the handle shaft plate 4 and the metal handle cavity cover plate 5 rotate with the metal handle 1, loosening the handbrake harness, so that the brake component releases the wheel, and the vehicle can drive freely. In this structure, since a noise reduction rubber ring 61 is provided between the metal push rod 6 and the push rod penetration cavity 111 of the metal handle 1, the metal push rod 6 and the push rod penetration cavity 111 are separated, and during driving, the metal push rod 6 and the push rod penetration cavity 111 will not collide, thereby avoiding abnormal noise.

Claims

1. A manual parking brake for eliminating abnormal noise, comprising a metal handle (1), a handle seat (3), a handle shaft plate (4), a metal handle cavity cover plate (5) and a metal push rod (6), wherein a portion of the metal handle (1) is a straight handle portion (11), the handle portion (11) has a push rod insertion cavity (111) inside, and another portion of the metal handle (1) is a connecting portion (12), a combination of the handle shaft plate (4) and the metal handle cavity cover plate (5) is fixedly connected to the connecting portion (12) and then rotatably arranged on the handle seat (3), and a metal push rod (6) is inserted into the push rod insertion cavity (111) of the metal handle (1), characterized in that: The metal push rod (6) is provided with a noise reduction rubber ring (61), and the noise reduction rubber ring (61) separates the metal push rod (6) from the cavity wall of the push rod penetration cavity (111).

2. A manual parking brake for eliminating abnormal noise according to claim 1, characterized in that: The noise reduction rubber ring (61) is sleeved on the metal push rod (6), and the metal push rod (6) is provided with stoppers at positions in front and behind the noise reduction rubber ring (61) to prevent the noise reduction rubber ring (61) from sliding forward and backward.

3. A manual parking brake for eliminating abnormal noise according to claim 2, characterized in that: The outer circumference of the noise reduction rubber ring (61) extends out a flat disc body (611) toward the wall of the push rod penetration cavity (111).

4. A manual parking brake for eliminating abnormal noise according to claim 2, characterized in that: The stopper is a noise-reducing rubber ring limiting flange (62) extending outward from the metal push rod (6).

5. A manual parking brake for eliminating abnormal noise according to claim 4, characterized in that: The noise reduction rubber ring limiting flange (62) is a circular arc boss.

6. The manual parking brake for eliminating abnormal noise according to claim 4, characterized in that: The connecting portion (12) comprises a large side plate (121) and a small side plate (122); the space between the large side plate (121) and the small side plate (122) is a handle seat installation cavity (123); the handle seat (3) is inserted into the handle seat installation cavity (123) from bottom to top; and a combination of the handle shaft plate (4) and the metal handle cavity cover plate (5) is installed on one side of the small side plate (122).

7. The manual parking brake for eliminating abnormal noise according to claim 6, characterized in that: The parking brake further comprises a lock plate (7) and a lock tooth plate (8); a metal push rod button (63) is fixed to one end of the metal push rod (6), and the other end is hingedly connected to one end of the lock plate (7); the lock plate (7) is rotatably arranged on the metal handle (1) via a lock plate shaft (71); a lock plate tooth (72) is machined on the other end of the lock plate (7); the lock plate tooth (72) is meshed with a lock tooth (81) on the lock tooth plate (8); and a lock tooth plate clamping foot (82) of the lock tooth plate (8) is clamped in a clamping foot groove (32) of the handle seat (3).

8. The manual parking brake for eliminating abnormal noise according to claim 7, characterized in that: The handle rotating shaft plate (4) is located between the handle base (3) and the metal handle cavity cover plate (5). A handle rotating shaft (41) extending to both sides is provided in the middle of the handle rotating shaft plate (4). The handle rotating shaft (41) on one side passes through the first shaft hole I (33) of the handle base (3) and is then inserted into the shaft hole (1211) on the large side plate (121). The handle rotating shaft (41) on the other side is inserted into the second shaft hole II (51) of the metal handle cavity cover plate (5).

9. The manual parking brake for eliminating abnormal noise according to claim 8, characterized in that: The handle shaft plate (4) is provided with a rotation limit column (42) extending to both sides. The rotation limit column (42) on one side passes through the arc-shaped rotation limit column slot (34) of the handle seat (3) and is then inserted into the first limit column mounting hole I (1212) on the large side plate (121), and the rotation limit column (42) on the other side is inserted into the second limit column mounting hole II (52) of the metal handle cavity cover plate (5).

10. The manual parking brake for eliminating abnormal noise according to claim 9, characterized in that: A plurality of cover plate limiting bosses (1221) extend outwardly from the plate surface of the small side plate (122), and the cover plate limiting bosses (1221) are clamped in the limiting boss holes (53) of the metal handle cavity cover plate (5), thereby fixing the combination of the metal handle cavity cover plate (5) and the handle rotating shaft plate (4) to the metal handle (1).

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