CN216833622U

CN216833622U - Parking brake valve handle facial make-up

Info

Publication number: CN216833622U
Application number: CN202220631653.XU
Authority: CN
Inventors: 张仕园; 刘相华; 姜瑞雪
Original assignee: Qingdao Naweixin Power Technology Co ltd
Current assignee: Qingdao Naweixin Power Technology Co ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2022-06-28
Anticipated expiration: 2032-03-22

Abstract

The utility model relates to a parking brake valve handle facial make-up, include: base, spring, handle bar, check lock lever and locking seat, the base middle part is formed with the installation through-hole, base top and locking seat fixed connection, the handle bar rotates with the locking seat to be connected, check lock lever and handle bar sliding connection, the spring is used for the relative handle bar motion of drive check lock lever, check lock lever one end and locking round pin axle fixed connection, the locking seat is formed with spacing piece and lower spacing piece, go up spacing piece and be located spacing piece top down, go up spacing piece and spacing piece down and be used for limiting locking round pin axle motion. The utility model can not only satisfy all functions of vehicle parking braking, but also complete the function of vehicle emergency braking; when the vehicle fails to brake normally due to service brake failure, a driver can quickly lift the handle lever to switch the handle lever to the parking position, so that the emergency brake function of the vehicle is achieved.

Description

Parking brake valve handle facial make-up

Technical Field

The utility model belongs to the technical field of the brake valve and specifically relates to a parking brake valve handle facial make-up.

Background

At present, engineering machinery and mine machinery (such as trackless rubber-tyred vehicles) mainly adopt an air-assisted clutch control system; the system is an oil-gas combined control clutch system. The system mainly has the following disadvantages: 1. the clutch operation consists of two systems of hydraulic pressure and air pressure, the number of elements is large, the size is large, the pipeline is complex, the exhaust noise is large, and the cost is high; 2. the gas-liquid ejection device is easy to cause gas to enter a pipeline, so that the braking is not flexible and the reliability is poor; 3. when the parking state is switched to the driving state, the pressure suddenly changes, and the problem of large impact exists.

Through research, the skilled person in the art finds that hydraulic power parking has the advantages of sensitivity, long service life and high safety compared with pneumatic power parking. Thus, machines and vehicles have been hydraulically powered for parking under certain special operating conditions.

The hydraulic power parking valve is an important component in a hydraulic power parking system. The existing hydraulic parking valve only considers the parking of the vehicle; namely, when the automobile is parked, a resistance is provided for the automobile, so that the automobile can not slide, and the operation habit of the automobile is different from that of the conventional automobile hand brake; when the vehicle is switched from a driving state to a parking state, two actions are needed to complete the operation, and when an emergency occurs, the parking handle valve is in the same nominal shape, so that an operator cannot rapidly complete the two actions; in addition, the existing hydraulic parking brake valve also has the problems of complex structure, complex installation and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, provide a parking brake valve handle facial make-up, solved the complicated problem of operation action of current parking equipment when the parking.

A parking brake valve handle top mount comprising: base, spring, handle bar, check lock lever and locking seat, the base middle part is formed with the installation through-hole, base top and locking seat fixed connection, the handle bar rotates with the locking seat to be connected, check lock lever and handle bar sliding connection, the spring is used for the relative handle bar motion of drive check lock lever, check lock lever one end and locking round pin axle fixed connection, the locking seat is formed with spacing piece and lower spacing piece, go up spacing piece and be located spacing piece top down, go up spacing piece and spacing piece down and be used for limiting locking round pin axle motion.

Furthermore, an upper limiting surface is formed below the upper limiting block, a lower limiting surface is formed below the lower limiting block, a lower sliding curved surface is formed below the lower limiting block, and the locking pin shaft is connected with the lower sliding curved surface in a sliding mode.

Further, still include first screw and press the post, first screw pass press the post and with check lock lever threaded connection, press post and handle bar sliding connection and stretch out the handle bar, the spring is located inside the handle bar, the spring both ends respectively with press post and handle bar contact.

Further, still include commentaries on classics piece, first round pin axle, thread pin axle, second round pin axle and switching piece, the base top is formed with base owner muscle, the commentaries on classics piece is rotated through thread pin axle and base owner muscle and is connected, handle bar and commentaries on classics piece fixed connection, the switching piece is located the handle bar below, the switching piece rotates with the commentaries on classics piece through first round pin axle and is connected, and the valve body of brake valve passes through the bolt fastening in the base below, and the push rod of brake valve upwards passes the mounting hole, the switching piece rotates through the push rod of second round pin axle and brake valve and is connected.

Further, still include handle cover and dirt proof boot, the handle cover suit in the handle pole outside and with handle pole fixed connection, dirt proof boot one end and handle pole fixed connection, the other end and base fixed connection, base owner muscle, commentaries on classics piece and latch closure are located inside the dirt proof boot, handle cover and dirt proof boot are elastic material and make.

Further, still include first jackscrew and second jackscrew, first jackscrew penetrates the check lock lever and fixes locking pin axle and check lock lever, the second jackscrew penetrates the commentaries on classics piece and fixes commentaries on classics piece and first round pin axle.

Furthermore, planes are respectively formed on two sides of the locking rod, and the planes are in contact with the locking seat and slide relative to the locking seat.

Further, still include the second screw, the locking seat passes through second screw and base fixed connection.

The utility model has the advantages of as follows: the parking brake system can not only meet all functions of parking brake of the vehicle, but also complete the emergency brake function of the vehicle; when the vehicle fails to brake normally due to service brake failure, a driver can quickly lift the handle lever to switch the handle lever to the parking position, so that the emergency brake function of the vehicle is achieved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawing in the following description is only an embodiment of the invention, and that for a person skilled in the art, other embodiments can be derived from the drawing provided without inventive effort.

FIG. 1: the left view structure schematic diagram of the utility model;

FIG. 2: the utility model is a schematic sectional structure diagram at A-A;

FIG. 3: the utility model has one of the three-dimensional structure schematic diagrams;

FIG. 4: the three-dimensional structure of the utility model is schematically shown as the second;

FIG. 5: the three-dimensional structure schematic diagram of the handle lever and the locking lever;

FIG. 6: the utility model discloses a spatial structure schematic diagram third.

Detailed Description

The invention will be further described with reference to the following figures and examples:

reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 6, the present embodiment provides a parking brake valve handle upper assembly including: base 1, spring 5, handle bar 6, locking lever 7 and locking seat 14, base 1 middle part is formed with installation through-hole 100, base 1 top and locking seat 14 fixed connection, handle bar 6 rotates with locking seat 14 to be connected, locking lever 7 and handle bar 6 sliding connection, spring 5 is used for driving the relative handle bar 6 motion of locking lever 7, locking lever 7 one end and fitting pin axle 11 fixed connection, locking seat 14 is formed with stopper 144 and stopper 145 down, stopper 144 is located stopper 145 top down on, stopper 144 is used for limiting fitting pin axle 11 to move down with stopper 145 down.

Furthermore, an upper limiting surface 143 is formed below the upper limiting block 144, a lower limiting surface 141 is formed below the lower limiting block 145, a lower sliding curved surface 142 is formed below the lower limiting block 145, and the locking pin 11 is slidably connected with the lower sliding curved surface 142.

Further, the handle structure comprises a first screw 3 and a pressing column 4, wherein the first screw 3 penetrates through the pressing column 4 and is in threaded connection with a locking rod 7, the pressing column 4 is in sliding connection with a handle rod 6 and extends out of the handle rod 6, a spring 5 is located inside the handle rod 6, and two ends of the spring 5 are respectively in contact with the pressing column 4 and the handle rod 6.

Further, still including changeing piece 8, first round pin axle 9, threaded pin axle 10, second round pin axle 15 and commentaries on classics piece 16, base 1 top is formed with base owner muscle 101, change piece 8 and rotate with base owner muscle 101 through threaded pin axle 10 and be connected, handle pole 6 and commentaries on classics piece 8 fixed connection, change piece 16 and be located handle pole 6 below, change piece 16 and change piece 8 through first round pin axle 9 and rotate to be connected, the valve body of brake valve 200 passes through bolt 18 to be fixed in base 1 below, and the push rod of brake valve 200 upwards passes mounting hole 100, change piece 8 and rotate with the push rod of brake valve 200 through second round pin axle 15 and be connected.

Further, still include handle cover 2 and dirt proof boot 19, handle cover 2 suit is in the handle bar 6 outside and with handle bar 6 fixed connection, 19 one end of dirt proof boot and 6 fixed connection of handle bar, the other end and base 1 fixed connection, base owner muscle 101, commentaries on classics piece 8 and locking seat 14 are located inside the dirt proof boot 19, handle cover 2 and dirt proof boot 19 are elastic material (for example oil-proof rubber) and make.

Further, still include first jackscrew 12 and second jackscrew 17, first jackscrew 12 penetrates check lock 7 and will lock round pin axle 11 and check lock 7 fixed, second jackscrew 17 penetrates commentaries on classics piece 8 and will change piece 8 and first round pin axle 9 fixed.

Further, flat surfaces 701 are respectively formed at both sides of the locking lever 7, and the flat surfaces 701 are in contact with the locking seat 14 and slide relative to the locking seat 14.

Further, the locking device further comprises a second screw 13, and the locking seat 14 is fixedly connected with the base 1 through the second screw 13.

The working principle is as follows:

the brake valve 200 is provided with a pressure oil port P, a brake oil port B and an oil tank oil port T; the brake valve 200 is a reverse brake valve (the definition of the reverse brake valve is that when the brake valve is operated without external force, such as a pedal or a handle, a pressure oil port P of the brake valve is communicated with a brake oil port B, and when the brake valve is operated with external force, such as the pedal is stepped or the handle is lifted, the brake oil port B is communicated with an oil tank oil port T).

In the driving state: as shown in fig. 2, the locking pin 11 is simultaneously contacted with the lower curved surface 142 and the upper limiting surface 143, and the elastic force of the spring 5 drives the locking pin 11 to be pressed against the lower curved surface 142 and the upper limiting surface 143. At this time, the brake port B is communicated with the pressure port P.

Switching from the driving state to the parking state: the handle lever 6 is rotated upwards, the locking pin shaft 11 is driven to move along the downward sliding curved surface 142 towards the direction far away from the handle lever 6, and the pressing column 4 moves synchronously along with the locking rod 7 to further compress the spring 5. When the locking pin shaft 11 rotates downwards to be separated from the downward sliding curved surface 142, the spring 5 rebounds and resets to drive the locking pin shaft 11 to move towards the direction close to the handle lever 6, so that the locking pin shaft 11 contacts with the lower limiting surface 141 and presses the lower limiting surface 141, and the lower limiting surface 141 limits the locking pin shaft 11 to move upwards, as shown in fig. 4. The lower limiting surface 141 is a curved surface. At the moment, the brake oil port B is communicated with the oil tank oil port T, and the vehicle is in a parking state.

Switching from the parking state to the driving state: the pressing column 4 is pressed to move the locking rod 7 and the locking pin 11 synchronously, and the locking pin 11 is separated from contact with the lower limit surface 141. After the handle lever 6 is rotated downwards, the pressing column 4 is released, the spring 5 is reset to press the locking pin shaft 11 on the downward sliding curved surface 142, and the handle lever 6 is continuously rotated downwards, so that the locking pin shaft 11 slides upwards along the downward sliding curved surface 142 until contacting with the upper limiting surface 143.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. A parking brake valve handle facial make-up, comprising: base (1), spring (5), handle bar (6), check lock lever (7) and locking seat (14), base (1) middle part is formed with installation through-hole (100), base (1) top and locking seat (14) fixed connection, handle bar (6) are rotated with locking seat (14) and are connected, check lock lever (7) and handle bar (6) sliding connection, spring (5) are used for driving check lock lever (7) and move handle bar (6) relatively, check lock lever (7) one end and locking round pin axle (11) fixed connection, locking seat (14) are formed with upper limit piece (144) and lower limit piece (145), upper limit piece (144) are located lower limit piece (145) top, upper limit piece (144) and lower limit piece (145) are used for restricting the motion of locking round pin axle (11).

2. The parking brake valve handle top mount of claim 1, wherein: an upper limiting surface (143) is formed below the upper limiting block (144), a lower limiting surface (141) is formed below the lower limiting block (145), a lower sliding curved surface (142) is formed below the lower limiting block (145), and the locking pin shaft (11) is connected with the lower sliding curved surface (142) in a sliding mode.

3. The parking brake valve handle upper assembly according to claim 2, characterized in that: still include first screw (3) and press post (4), first screw (3) pass press post (4) and with check lock lever (7) threaded connection, press post (4) and handle bar (6) sliding connection and stretch out handle bar (6), spring (5) are located inside handle bar (6), spring (5) both ends respectively with press post (4) and handle bar (6) contact.

4. The parking brake valve handle upper assembly according to claim 2, characterized in that: still including changeing piece (8), first round pin axle (9), threaded pin axle (10), second round pin axle (15) and switching piece (16), base (1) top is formed with base owner muscle (101), change piece (8) and rotate with base owner muscle (101) through threaded pin axle (10) and be connected, handle pole (6) and commentaries on classics piece (8) fixed connection, switching piece (16) are located handle pole (6) below, switching piece (16) are connected through first round pin axle (9) and commentaries on classics piece (8) rotation, and the valve body of brake valve (200) passes through bolt (18) to be fixed in base (1) below, and the push rod of brake valve (200) upwards passes mounting hole (100), it is connected through the push rod rotation of second round pin axle (15) and brake valve (200) to change piece (8).

5. The parking brake valve handle upper assembly according to claim 4, characterized in that: still include handle cover (2) and dirt proof boot (19), handle cover (2) suit in the handle bar (6) outside and with handle bar (6) fixed connection, dirt proof boot (19) one end and handle bar (6) fixed connection, the other end and base (1) fixed connection, base owner muscle (101), commentaries on classics piece (8) and lock seat (14) are located inside dirt proof boot (19), handle cover (2) and dirt proof boot (19) are made for elastic material.

6. The parking brake valve handle upper assembly according to claim 4, characterized in that: still include first jackscrew (12) and second jackscrew (17), first jackscrew (12) penetrate check lock lever (7) and will lock round pin axle (11) and check lock lever (7) fixed, second jackscrew (17) penetrate commentaries on classics piece (8) will change piece (8) and be fixed with first round pin axle (9).

7. The parking brake valve handle top mount of claim 1, wherein: the locking device is characterized in that planes (701) are formed on two sides of the locking rod (7) respectively, and the planes (701) are in contact with the locking seat (14) and slide relative to the locking seat (14).

8. The parking brake valve handle top mount of claim 1, wherein: the locking device is characterized by further comprising a second screw (13), and the locking seat (14) is fixedly connected with the base (1) through the second screw (13).