CN208984268U - A kind of automobile hand brake pull rod reply force checking device - Google Patents

Abstract

The utility model relates to technical field of automobile detection, specifically, it is related to a kind of automobile hand brake pull rod reply force checking device, including workbench and parking brake, it further include having arc panel, bearing fixture, push lifting device and press device, by passing through arc panel, bearing fixture, cooperating with each other between push lifting device and press device, parking brake is placed on loading plate first, parking brake is fixed by threaded rod, casing is set on parking brake pull rod again, parking brake pull rod is fixed in casing by active grab, pass through push lifting device again for parking brake pull rod top to most tight position, the output end of telescopic rod contradicts the button on parking brake pull rod, parking brake pull rod is fallen by spontaneous restoring force, when parking brake pull rod is declined by spontaneous restoring force, casing by arc panel and arc draw runner and arc-shaped slide rail be slidably matched to parking brake pull rod together Decline solves the problem of test inconvenience, detection difficult.

Description

A kind of automobile hand brake pull rod reply force checking device

Technical field

The utility model relates to technical field of automobile detection, and in particular, to a kind of automobile hand brake pull rod restoring force detection Device.

Background technique

Increasingly developed with automobile industry, automobile has become the most commonly used vehicles of people's daily trip.Automobile Composition system in mainly include power train, running gear, braking system, vehicle body etc..Wherein, braking system again include brake, it is automatic Transmission device, brake auxiliary device etc..Parking brake is parking component indispensable in brake system of car, for stopping on hill or Parking in special circumstances is anti-slip.The structure of parking brake mainly includes handle mobile jib, pawl, ratchet, steel wire, guy wire support, handle Bracket etc..Different from the principle of brake, mechanical parking brake uses lever principle, utilizes the rotation of brake bar driving pawl, ratchet straps Dynamic cable support pulls bracing wire, realizes the braking of shoe brake or transmission shaft；When needing to release braking, pin on brake bar Spring button releases the one-directional rotation characteristic of ratchet using spring force, and external force brake bar parking brake can set back, so that Shoe brake or transmission shaft release braking.Parking brake pull rod, which is used for a long time, can make spring generate plastic deformation, since this deformation is Expendable, so effectiveness can be reduced by being used for a long time, parking brake pull rod can not reset to extreme lower position by the restoring force of itself, So that driver drives vehicle in the case where putting down parking brake thinking, the brake system of vehicle is damaged.Therefore hand The detection of brake pull rod restoring force is extremely necessary, but the detection of existing parking brake pull rod restoring force is mostly artificial detection, test It is inconvenient, test effect is different, or directly dispatch from the factory without detection, thus can not control parking brake pull rod quality, so being badly in need of a The detection device of parking brake pull rod restoring force.

Utility model content

In view of the deficiencies of the prior art, the utility model provides a kind of automobile hand brake pull rod reply force checking device, passes through Mutual cooperation between arc panel, bearing fixture, push lifting device and press device, solves test inconvenience, and detection difficult is asked Topic.

A kind of automobile hand brake pull rod disclosed by the utility model replys force checking device, including workbench and parking brake, also wraps Arc panel, bearing fixture, push lifting device and press device are included, the side on workbench top, arc is arranged in the bearing fixture The other side on workbench top is arranged in shape plate state in a vertical shape, and push lifting device is arranged in the top of workbench and is located at carrying Between jig and arc panel, side of the arc panel towards bearing fixture is arranged in press device, and the press device includes arc Side of the arc panel towards bearing fixture, arc is arranged in shape sliding rail, arc draw runner and casing, the arc slide rail state in a vertical shape Shape draw runner is arranged on arc-shaped slide rail, and arc draw runner is slidably matched with arc-shaped slide rail, is provided with arc pressuring plate on arc draw runner, The side of arc pressuring plate is connect with arc draw runner, and the bottom end of casing and the other side of arc pressuring plate connect, the top of casing It is set on the handle of the hand brake, inside pipe casing is provided with telescopic rod, and the bottom end of telescopic rod and the bottom end of inside pipe casing connect, stretch Push-button of the output end of contracting bar towards the hand brake.

Further, the bearing fixture includes bearing base, and bearing base is rectangular plate-like structure, bearing base Bottom end is provided with four installation leg, and every installation leg is separately positioned on an angle of bearing base, and installation leg state in a vertical shape is set It sets, the top of installation leg and the bottom end of bearing base connect, and the side of every installation leg bottom end is provided with mounting blocks, Mei Gean It is provided with one on dress block for the threaded hole of leg to be fixedly mounted, loading plate is provided on bearing base, loading plate is in level The top of bearing base is arranged in state, and four threaded rods are provided on loading plate, and four threaded rods are arranged in rectangle, threaded rod State in a vertical shape is arranged and the bottom end of threaded rod is fixedly connected with the top of loading plate.

Further, the push lifting device includes Z-shaped plate, driving motor, connecting rod, cam and elevating lever, the setting of Z-shaped plate On the top of workbench, Z-shaped plate is made of first horizontal plate, second horizontal plate and vertical plate, and first horizontal plate is in a horizontal state The top of workbench is set, side top of the first horizontal plate close to bearing fixture is arranged in vertical plate state in a vertical shape, the Two level boards, which are in a horizontal state, is arranged in the top of vertical plate, and the driving motor, which is in a horizontal state, is arranged in first horizontal plate Top, the output end of driving motor is towards bearing fixture direction, and the output end of driving motor is provided with driving wheel, and driving wheel is arranged In the output end of driving motor, the side of driving wheel is provided with driven wheel, and driving wheel is connected with driven wheel by belt, driven wheel It is provided with axle bed between vertical plate, axle bed state in a vertical shape is arranged on workbench top, and connecting rod is in a horizontal state setting, company One end of extension bar is connect with driven wheel, the other end of connecting rod passes through axle bed and vertical plate extend to vertical plate the other side it is convex On wheel, the junction of connecting rod and axle bed and vertical plate is provided with bearing, and cam state setting in a vertical shape is close in vertical plate The side of bearing fixture, cam are connect with connecting rod, and the top of cam is arranged in for elevating lever state in a vertical shape and elevating lever is worn Second horizontal plate is crossed to upwardly extend.

Further, the lower horizontal of the elevating lever is provided with cushion block, and the bottom end of cushion block is vertically arranged with runner, runner Spacing cooperates between cushion block, and the two sides of runner are provided with fixed plate, and fixed plate state in a vertical shape is arranged, is arranged in fixed plate There is first through hole, the second through-hole is provided on runner, fixed link is connected and fixed plate and runner by first through hole and the second through-hole, It is additionally provided with ring slider on runner, convex sliding rail is provided on cam, cam is slidably matched with runner, the top of cushion block and the Be provided with return spring between the bottom end of two level boards, return spring is set in the outer ring of elevating lever, the top of return spring with The bottom end of second horizontal plate connects, and the bottom end of return spring and the top of cushion block connect, and the top of elevating lever is provided with for pushing up The jacking block of parking brake is played, the bottom end of jacking block and the top of elevating lever connect, set between the bottom end of jacking block and the top of second horizontal plate It is equipped with limit plate, limit plate is in a horizontal state setting.

Further, described sleeve pipe and parking brake handlebar junction are provided with circular hole, are vertically arranged support on sleeve outer wall Plate, supporting plate are located at the side of circular hole, and setting is equipped with active grab on supporting plate, the output end of active grab towards casing with The setting of parking brake handlebar junction.

Further, the both ends of the arc-shaped slide rail are provided with positive stop block.

The utility model has the advantages that a kind of automobile hand brake pull rod of the invention replys force checking device, by being controlled by arc panel, carrying Parking brake, is placed on loading plate by cooperating with each other between tool, push lifting device and press device first, will by threaded rod Parking brake is fixed, then casing is set on parking brake pull rod, and parking brake pull rod is fixed in casing by active grab, then by raising dress It sets parking brake pull rod top to most tight position, the output end of telescopic rod contradicts the button on parking brake pull rod, and parking brake pull rod passes through spontaneous Restoring force fall, when parking brake pull rod is declined by spontaneous restoring force, casing passes through arc panel and arc draw runner and arc The problem of sliding rail is slidably matched to solve thus as parking brake pull rod declines together and test inconvenience, detection difficult.

Detailed description of the invention

The drawings described herein are used to provide a further understanding of the present application, constitutes part of this application, this Shen Illustrative embodiments and their description please are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings:

Fig. 1 is embodiment neutral body structural schematic diagram；

Fig. 2 is side view in embodiment；

Fig. 3 is bearing fixture schematic perspective view in embodiment；

Fig. 4 is push lifting device partial structural diagram one in embodiment；

Fig. 5 is push lifting device partial structural diagram two in embodiment；

Fig. 6 is press device partial structural diagram one in embodiment；

Fig. 7 is press device partial structural diagram two in embodiment.

Description of symbols:

Arc panel 1, bearing fixture 2, bearing base 3, installation leg 4, mounting blocks 5, threaded hole 6, loading plate 7, threaded rod 8, Push lifting device 9, Z-shaped plate 10, first horizontal plate 11, second horizontal plate 12, vertical plate 13, driving motor 14, driving wheel 15 are driven Wheel 16, axle bed 17, bearing 18, connecting rod 19, cam 20, elevating lever 21, cushion block 22, runner 23, fixed plate 24, first through hole 25, the second through-hole 26, return spring 27, jacking block 28, limit plate 29, press device 30, arc-shaped slide rail 31, arc draw runner 32, set Pipe 33, circular hole 34, supporting plate 35, active grab 36, telescopic rod 37, arc pressuring plate 38.

Specific embodiment

Multiple embodiments that the utility model will be disclosed with schema below, as clearly stated, in many practices Details will be explained in the following description.It should be appreciated, however, that the details in these practices does not apply this with limitation practical new Type.That is, the details in these practices is non-essential in some embodiments of the utility model.In addition, for letter For the sake of changing schema, some known usual structures and component will be painted it in the drawings in simply illustrative mode.

In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and non-specifically The meaning of order or cis-position is censured, it is also non-to limit the utility model, it is retouched just for the sake of difference with same technique term The component stated or operation are not understood to indicate or imply its relative importance or implicitly indicate indicated technology The quantity of feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution Conjunction is not present, also not within the protection scope of the requires of the utility model.

A kind of automobile hand brake pull rod reply force checking device shown in referring to Figure 1 to Figure 7, including workbench and parking brake, are also wrapped Arc panel 1, bearing fixture 2, push lifting device 9 and press device 30 are included, the bearing fixture 2 is arranged in the one of workbench top Side, the state in a vertical shape of arc panel 1 are arranged in the other side on workbench top, push lifting device 9 be arranged in the top of workbench and Between bearing fixture 2 and arc panel 1, arc panel 1 is arranged in towards the side of bearing fixture 2 in press device 30, described to press Pressure device 30 includes arc-shaped slide rail 31, arc draw runner 32 and casing 33, and the arc-shaped slide rail 31 state in a vertical shape is arranged in arc Shape plate 1 is arranged on arc-shaped slide rail 31 towards the side of bearing fixture 2, arc draw runner 32, arc draw runner 32 and arc-shaped slide rail 31 It is slidably matched, arc pressuring plate 38 is provided on arc draw runner 32, the side of arc pressuring plate 38 is connect with arc draw runner 32, set The bottom end of pipe 33 is connect with the other side of arc pressuring plate 38, and the top of casing 33 is set on parking brake pull rod, inside casing 33 It is provided with telescopic rod 37, the bottom end of telescopic rod 37 is connect with the bottom end inside casing 33, and the output end of telescopic rod 37 is towards parking brake The push-button of vehicle.When parking brake pull rod is declined by spontaneous restoring force, casing 33 passes through 32 He of arc panel 1 and arc draw runner Arc-shaped slide rail 31 is slidably matched to which as parking brake pull rod declines together, casing 33 ensure that as parking brake pull rod declines together Button of the parking brake pull rod in whereabouts on parking brake pull rod will not be sprung back, and interrupt the test of own resilience.

The bearing fixture 2 includes bearing base 3, and bearing base 3 is rectangular plate-like structure, the bottom end of bearing base 3 Four installation leg 4 are provided with, every installation leg 4 is separately positioned on an angle of bearing base 3, and the state in a vertical shape of installation leg 4 is set It sets, the top of installation leg 4 is connect with the bottom end of bearing base 3, and the side of every 4 bottom end of installation leg is provided with mounting blocks 5, often It is provided with one on a mounting blocks 5 for the threaded hole 6 of leg 4 to be fixedly mounted, is provided with loading plate 7 on bearing base 3, carries Plate 7, which is in a horizontal state, is arranged in the top of bearing base 3, and four threaded rods 8 are provided on loading plate 7, and four threaded rods 8 are in square The bottom end of shape setting, the setting of the state in a vertical shape of threaded rod 8 and threaded rod 8 is fixedly connected with the top of loading plate 7.Installation leg 4 Bearing base 3 can be preferably fixed by the threaded hole 6 on mounting blocks 5 to pass through so that bearing base 3 will not be moved arbitrarily Parking brake can be fixed on loading plate 7 by threaded rod 8, so that parking brake will not be moved arbitrarily during the test, influence to test.

The push lifting device 9 includes Z-shaped plate 10, driving motor 14, connecting rod 19, cam 20 and elevating lever 21, Z-shaped plate 10 The top of workbench is set, and Z-shaped plate 10 is made of first horizontal plate 11, second horizontal plate 12 and vertical plate 13, first level Plate 11, which is in a horizontal state, is arranged in the top of workbench, and the setting of the state in a vertical shape of vertical plate 13 is in first horizontal plate 11 close to carrying The top of 2 side of jig, second horizontal plate 12, which is in a horizontal state, is arranged in the top of vertical plate 13, and the driving motor 14 is in water Level state is arranged in the top of first horizontal plate 11, and the output end of driving motor 14 is towards 2 direction of bearing fixture, driving motor 14 Output end be provided with driving wheel 15, driving wheel 15 is set in the output end of driving motor 14, and the side of driving wheel 15 is provided with Driven wheel 16, driving wheel 15 are connected with driven wheel 16 by belt, and axle bed 17, axis are provided between driven wheel 16 and vertical plate 13 The states in a vertical shape of seat 17 are arranged on workbench top, and connecting rod 19 is in a horizontal state setting, one end of connecting rod 19 and driven wheel 16 connections, the other end of connecting rod 19 pass through vertical plate 13 and extend on the cam 20 of 13 other side of vertical plate, connecting rod 19 with The junction of vertical plate 13 is provided with bearing 18, and vertical plate 13 is arranged in close to the one of bearing fixture 2 in the state in a vertical shape of cam 20 Side, cam 20 are connect with the other end 19 of connecting rod, and top and the lifting of cam 20 is arranged in the state in a vertical shape of elevating lever 21 Bar 21 passes through second horizontal plate 12 and upwardly extends.Driving motor 14 drives driving wheel 15, and driving wheel 15 is driven driven by belt 16 rotation of wheel, driven wheel 16 drive connecting rod 19 to rotate, because connecting rod 19 and axle bed 17 and vertical plate 13 are by bearing 18 Connection, connecting rod 19 can rotation, connecting rod 19 with moving cam 20 rotate.

The lower horizontal of the elevating lever 21 is provided with cushion block 22, and the bottom end of cushion block 22 is vertically arranged with runner 23, runner Spacing cooperates between 23 and cushion block 22, and the two sides of runner 23 are provided with fixed plate 24, and the state in a vertical shape of fixed plate 24 is arranged, Gu It is provided with first through hole 25 on fixed board 24, the second through-hole 26 is provided on runner 23, fixed link passes through first through hole 25 and second Through-hole 26 is connected and fixed plate 24 and runner 23, and ring slider is additionally provided on runner 23, and concave sliding rail is provided on cam 20, convex Wheel 20 is slidably matched with runner 23, is provided with return spring 27 between the top of cushion block 22 and the bottom end of second horizontal plate 12, returns Power spring 27 is set in the outer ring of elevating lever 21, there are gap between return spring and elevating lever, the top of return spring 27 with The bottom end of second horizontal plate 12 connects, and the bottom end of return spring 27 is connect with the top of cushion block 22, the top setting of elevating lever 21 There is the jacking block 28 for jacking up parking brake pull rod, the bottom end of jacking block 28 is connect with the top of elevating lever 21, the bottom end of jacking block 28 and the It is provided with limit plate 29 between the top of two level boards 12, limit plate 29 is in a horizontal state setting.The rotation of cam 20 is so that turn Wheel 23 is rotated with the cooperation of cam 20, and because of the irregular shape of cam 20 to drive elevating lever 21 to rise, the rising of elevating lever 21 makes The upper body therewith of jacking block 28 is obtained, parking brake pull rod is pushed and rises with it, the power of returning of return spring 27 makes elevating lever 21 will in cam 20 After elevating lever 21 shifts highest point onto, elevating lever 21 is pulled to fall after rise, limit plate 29 makes elevating lever 21 will not in rising and whereabouts Center of gravity is deviated, guarantees moving track.

Described sleeve pipe 33 and parking brake pull rod junction are provided with circular hole 34, are vertically arranged supporting plate 35 on 33 outer wall of casing, Supporting plate 35 is located at the side of circular hole 34, and active grab 36, the output end direction circle of active grab 36 are equipped on supporting plate 35 Hole 34 is arranged.When parking brake pull rod arrives test position by top, parking brake pull rod is fixed in casing 33 by active grab 36, telescopic rod 37 output end contradicts the button on brake handle, and parking brake pull rod is fallen by spontaneous restoring force.

The both ends of the arc-shaped slide rail 31 are provided with positive stop block.Postive stop baffle makes arc draw runner 32 can only be in arc The gliding in tracks of sliding rail 31 avoids inertia from skidding off the track of arc-shaped slide rail 31, guarantees the normal of test.

Working principle: parking brake is mounted on loading plate 7, fixes parking brake by threaded rod 8, and casing 33 is set in On parking brake pull rod, parking brake pull rod is fixed in casing 33 by active grab 36, and driving motor 14 drives driving wheel 15, driving wheel 15 Driven wheel 16 is driven to rotate by belt, driven wheel 16 drives connecting rod 19 to rotate, and connecting rod 19 is rotated with moving cam 20, cam 20 rotation is so that runner 23 and the cooperation of cam 20 rotate, because of the irregular shape of cam 20 to drive elevating lever 21 to rise, Elevating lever 21 rises so that the upper body therewith of jacking block 28, pushes parking brake pull rod and rise with it, and the power of returning of return spring 27 to go up and down Bar 21 pulls elevating lever 21 to fall after rise after cam 20 shifts elevating lever 21 onto highest point, and the output end of telescopic rod 37 contradicts brake Button on pull rod, parking brake pull rod are fallen by spontaneous restoring force, when parking brake pull rod is declined by spontaneous restoring force, casing 33 being slidably matched to as parking brake pull rod declines together by arc panel 1 and arc draw runner 32 and arc-shaped slide rail 31.

Upper described only the embodiments of the present invention, is not intended to limit the utility model.For this field For technical staff, various modifications and changes may be made to the present invention.The interior institute of all spirit and principle in the utility model Any modification, equivalent substitution, improvement and etc. of work should all include within the scope of the claims of the utility model.

Claims (6)

1. a kind of automobile hand brake pull rod replys force checking device, including workbench and parking brake, it is characterised in that: further include having arc Workbench top is arranged in plate (1), bearing fixture (2), push lifting device (9) and press device (30), the bearing fixture (2) The other side on workbench top is arranged in side, arc panel (1) state in a vertical shape, and the top of workbench is arranged in push lifting device (9) It holds and positioned at bearing fixture (2) and arc panel (1) between, press device (30) is arranged in arc panel (1) towards bearing fixture (2) side, the press device (30) include arc-shaped slide rail (31), arc draw runner (32) and casing (33), the arc In arc panel (1) towards the side of bearing fixture (2), arc draw runner (32) is arranged in arc for sliding rail (31) state setting in a vertical shape On sliding rail (31), arc draw runner (32) is slidably matched with arc-shaped slide rail (31), and arc draw runner is provided with arc pressuring plate on (32) (38), the side of arc pressuring plate (38) is connect with arc draw runner (32), bottom end and arc pressuring plate (38) of casing (33) Other side connection, the top of casing (33) are set on parking brake pull rod, and casing (33) is internally provided with telescopic rod (37), telescopic rod (37) the internal bottom end of bottom end and casing (33) is connect, the push-button of the output end of telescopic rod (37) towards the hand brake.

2. a kind of automobile hand brake pull rod according to claim 1 replys force checking device, it is characterised in that: the carrying is controlled Tool (2) includes bearing base (3), and bearing base (3) is rectangular plate-like structure, and the bottom end of bearing base (3) is provided with four Installation leg (4), every installation leg (4) are separately positioned on an angle of bearing base (3), and installation leg (4) state in a vertical shape is arranged, The top of installation leg (4) is connect with the bottom end of bearing base (3), and the side of every installation leg (4) bottom end is provided with mounting blocks (5), one is provided on each mounting blocks (5) for the threaded hole (6) of leg (4) to be fixedly mounted, bearing base is arranged on (3) Have loading plate (7), loading plate (7), which is in a horizontal state, to be arranged on the top of bearing base (3), and loading plate is provided with four on (7) Threaded rod (8), four threaded rods (8) are arranged in rectangle, the bottom end of threaded rod (8) state setting in a vertical shape and threaded rod (8) It is fixedly connected with the top of loading plate (7).

3. a kind of automobile hand brake pull rod according to claim 2 replys force checking device, it is characterised in that: described to raise dress Setting (9) includes Z-shaped plate (10), driving motor (14), connecting rod (19), cam (20) and elevating lever (21), Z-shaped plate (10) setting On the top of workbench, Z-shaped plate (10) is made of first horizontal plate (11), second horizontal plate (12) and vertical plate (13), and first Level board (11), which is in a horizontal state, is arranged in the top of workbench, and vertical plate (13) state in a vertical shape is arranged in first horizontal plate (11) close to the top of bearing fixture (2) side, second horizontal plate (12), which is in a horizontal state, to be arranged on the top of vertical plate (13), The driving motor (14), which is in a horizontal state, to be arranged in the top of first horizontal plate (11), the output end direction of driving motor (14) Bearing fixture (2) direction, the output end of driving motor (14) are provided with driving wheel (15), and driving wheel (15) is set in driving motor (14) output end, the side of driving wheel (15) are provided with driven wheel (16), and driving wheel (15) and driven wheel (16) pass through belt Connection, is provided with axle bed (17) between driven wheel (16) and vertical plate (13), and axle bed (17) state in a vertical shape is arranged in workbench Top, connecting rod (19) are in a horizontal state setting, and one end of connecting rod (19) is connect with driven wheel (16), connecting rod (19) it is another One end passes through vertical plate (13) and extends on the cam (20) of vertical plate (13) other side, connecting rod (19) and vertical plate (13) Junction is provided with bearing (18), and the side in vertical plate (13) close to bearing fixture (2) is arranged in cam (20) state in a vertical shape, Cam (20) is connect with the other end of connecting rod (19), the setting of elevating lever (21) state in a vertical shape cam (20) top and Elevating lever (21) passes through second horizontal plate (12) and upwardly extends.

4. a kind of automobile hand brake pull rod according to claim 3 replys force checking device, it is characterised in that: the elevating lever (21) lower horizontal is provided with cushion block (22), and the bottom end of cushion block (22) is vertically arranged with runner (23), runner (23) and cushion block (22) spacing cooperates between, and the two sides of runner (23) are provided with fixed plate (24), fixed plate (24) state setting in a vertical shape, Gu It is provided on fixed board (24) first through hole (25), the second through-hole (26) is provided on runner (23), fixed link passes through first through hole (25) and the second through-hole (26) is connected and fixed plate (24) and runner (23), and runner is additionally provided with ring slider, cam on (23) (20) concave sliding rail is provided on, cam (20) is slidably matched with runner (23), the top of cushion block (22) and second horizontal plate (12) it is provided between bottom end return spring (27), return spring (27) is set in the outer ring of elevating lever (21), return spring There are gap between elevating lever, the top of return spring (27) is connect with the bottom end of second horizontal plate (12), return spring (27) bottom end is connect with the top of cushion block (22), and the top of elevating lever (21) is provided with the jacking block for jacking up parking brake pull rod (28), the bottom end of jacking block (28) is connect with the top of elevating lever (21), the bottom end of jacking block (28) and the top of second horizontal plate (12) It is provided between end limit plate (29), limit plate (29) is in a horizontal state setting.

5. a kind of automobile hand brake pull rod according to claim 4 replys force checking device, it is characterised in that: described sleeve pipe (33) it is provided with circular hole (34) with parking brake pull rod junction, is vertically arranged supporting plate (35), supporting plate on casing (33) outer wall (35) it is located at the side of circular hole (34), is equipped with active grab (36) on supporting plate (35), the output end court of active grab (36) It is arranged to circular hole (34).

6. a kind of automobile hand brake pull rod according to claim 5 replys force checking device, it is characterised in that: the arc is sliding The both ends of rail (31) are provided with positive stop block.