阅读说明：本技术 一种液压多路阀的操控机构 (Control mechanism of hydraulic multi-way valve ) 是由 邓荣 刘均益 侯凯 于 2019-11-29 设计创作，主要内容包括：本发明公开了一种液压多路阀的操控机构,包括推土操纵手柄、推拉软轴以及通过底架集成在一起的下传动轴、上传动轴、多路阀推土联、多路阀破碎联、多路阀偏转联、左踏板总成和右踏板总成。在具体使用过程中,可以通过操作左脚踏板总成、右脚踏板总成分别实现多路阀破碎联、多路阀偏转联的阀芯向左、向右开启,还可以通过操作推土操纵手柄实现多路阀推土联的阀芯向左、向右开启,各开启的阀芯可在复位弹簧下自动复位,使得整个机构具有操作舒适、性能稳定、结构紧凑、便于制造以及成本低廉的优点,更贴近用户购买的承受力。(The invention discloses an operating mechanism of a hydraulic multi-way valve, which comprises a bulldozing operating handle, a push-pull flexible shaft, a lower transmission shaft, an upper transmission shaft, a multi-way valve bulldozing linkage, a multi-way valve crushing linkage, a multi-way valve deflection linkage, a left pedal assembly and a right pedal assembly which are integrated together through an underframe. In the specific use process, the valve cores of the multi-way valve breaking connection and the multi-way valve deflection connection can be opened leftwards and rightwards respectively by operating the left pedal assembly and the right pedal assembly, the valve cores of the multi-way valve bulldozing connection can be opened leftwards and rightwards by operating the bulldozing control handle, and the opened valve cores can be automatically reset under a reset spring, so that the whole mechanism has the advantages of comfort in operation, stable performance, compact structure, convenience in manufacture and low cost, and is closer to the bearing capacity purchased by a user.)

1. The utility model provides a control mechanism of hydraulic pressure multiple unit valve which characterized in that:

the multi-way valve bulldozing device comprises a bulldozing control handle, a push-pull flexible shaft, a lower transmission shaft, an upper transmission shaft, a multi-way valve bulldozing linkage, a multi-way valve crushing linkage, a multi-way valve deflection linkage, a left pedal assembly and a right pedal assembly which are integrated together through an underframe, wherein the lower transmission shaft is arranged along the Y direction, two ends of the lower transmission shaft are rotatably connected with the underframe, the upper transmission shaft is arranged along the X direction, and two ends of the upper transmission shaft are also rotatably connected with the;

the lower transmission shaft is rotatably sleeved with a transmission sleeve five, the transmission sleeve five is connected with a valve core of the multi-way valve bulldozing unit through a connecting rod, clockwise and anticlockwise rotation of the transmission sleeve five can drive the valve core of the multi-way valve bulldozing unit to be opened leftwards and rightwards, and the bulldozing control handle drives the transmission sleeve five to rotate clockwise and anticlockwise through a push-pull flexible shaft;

the lower transmission shaft is rotatably sleeved with a third transmission sleeve, the third transmission sleeve is connected with a valve core of the multi-way valve crushing unit through a connecting rod, clockwise and anticlockwise rotation of the third transmission sleeve can drive the valve core of the multi-way valve crushing unit to be opened leftwards and rightwards, and the left pedal assembly drives the third transmission sleeve to clockwise and anticlockwise rotate through a first ball head connecting rod;

the left end and the right end of the upper transmission shaft are respectively and fixedly sleeved with a first transmission sleeve and a second transmission sleeve, the front end and the rear end of the lower transmission shaft are respectively and fixedly sleeved with a sixth transmission sleeve and a fourth transmission sleeve, the four transmission sleeves pass through a connecting rod to be connected with a valve core of a multi-way valve deflection linkage, and clockwise and counterclockwise rotation of the four transmission sleeves can drive the valve core of the multi-way valve deflection linkage to be opened leftwards and rightwards, the right pedal assembly drives the second transmission sleeve, the upper transmission shaft and the transmission sleeves to synchronously clockwise and counterclockwise rotate through a second ball head connecting rod, and the first transmission sleeve drives the sixth transmission sleeve, the lower transmission shaft and the four transmission sleeves to synchronously clockwise and counterclockwise rotate through a third ball head connecting rod.

2. The operating mechanism of a hydraulic multiport valve as recited in claim 1, characterized in that: the left pedal assembly and the right pedal assembly are connected with the bottom frame through pedal supports.

3. The operating mechanism of a hydraulic multiport valve as set forth in claim 2, characterized in that: and limiting bolts are arranged between the bottom of the left pedal assembly and the pedal bracket and between the bottom of the right pedal assembly and the pedal bracket.

4. The operating mechanism of a hydraulic multiport valve as set forth in claim 3, characterized in that: and pedal cover plates are arranged at the left pedal assembly and the right pedal assembly.

5. The operating mechanism of a hydraulic multiport valve as recited in claim 1, characterized in that: and the two ends of the upper transmission shaft and the lower transmission shaft are rotatably supported with the underframe through bearings and bearing seats which are assembled in a matched manner or bearings and bearing sleeves which are assembled in a matched manner.

6. The control mechanism of the hydraulic multiple-way valve according to any one of claims 1 to 5, characterized in that: the first transmission sleeve and the second transmission sleeve are both locked and sleeved with the upper transmission shaft through the first pin, and the fourth transmission sleeve and the sixth transmission sleeve are both locked and sleeved with the lower transmission shaft through the second pin.

Technical Field

The invention relates to the technical field of hydraulic multi-way valves, in particular to an operating mechanism of a hydraulic multi-way valve.

Background

With the aging of Chinese population, the shortage of labor force and the continuous rising of labor cost, people are promoted to have greater and greater requirements on miniature excavating equipment in engineering machinery. Meanwhile, people put higher requirements on the stability and the comfort of the control of the miniature excavator. At present, the miniature excavator has various models, and the multi-way valve is poor in controllability and high in manufacturing cost due to different control modes, structural arrangements and the like. The multi-way valve control mechanism is comfortable to control, stable in performance, compact in structure, convenient to manufacture and lower in cost, and can meet the market demand only when being closer to the situation that a user buys the multi-way valve control mechanism with bearing capacity.

Disclosure of Invention

In view of the above, the present invention is directed to a control mechanism for a hydraulic multi-way valve, which has the advantages of comfortable operation, stable performance, compact structure, easy manufacture and low cost.

The invention solves the problems through the following technical means: a control mechanism of a hydraulic multi-way valve comprises a bulldozing control handle, a push-pull flexible shaft, a lower transmission shaft, an upper transmission shaft, a multi-way valve bulldozing linkage, a multi-way valve crushing linkage, a multi-way valve deflection linkage, a left pedal assembly and a right pedal assembly, wherein the lower transmission shaft, the upper transmission shaft, the multi-way valve bulldozing linkage, the multi-way valve crushing linkage, the multi-way valve deflection linkage, the left pedal assembly and the right pedal assembly are integrated together through an underframe;

the lower transmission shaft is rotatably sleeved with a transmission sleeve five, the transmission sleeve five is connected with a valve core of the multi-way valve bulldozing unit through a connecting rod, clockwise and anticlockwise rotation of the transmission sleeve five can drive the valve core of the multi-way valve bulldozing unit to be opened leftwards and rightwards, and the bulldozing control handle drives the transmission sleeve five to rotate clockwise and anticlockwise through a push-pull flexible shaft;

the lower transmission shaft is rotatably sleeved with a third transmission sleeve, the third transmission sleeve is connected with a valve core of the multi-way valve crushing unit through a connecting rod, clockwise and anticlockwise rotation of the third transmission sleeve can drive the valve core of the multi-way valve crushing unit to be opened leftwards and rightwards, and the left pedal assembly drives the third transmission sleeve to clockwise and anticlockwise rotate through a first ball head connecting rod;

the left end and the right end of the upper transmission shaft are respectively and fixedly sleeved with a first transmission sleeve and a second transmission sleeve, the front end and the rear end of the lower transmission shaft are respectively and fixedly sleeved with a sixth transmission sleeve and a fourth transmission sleeve, the four transmission sleeves pass through a connecting rod to be connected with a valve core of a multi-way valve deflection linkage, and clockwise and counterclockwise rotation of the four transmission sleeves can drive the valve core of the multi-way valve deflection linkage to be opened leftwards and rightwards, the right pedal assembly drives the second transmission sleeve, the upper transmission shaft and the transmission sleeves to synchronously clockwise and counterclockwise rotate through a second ball head connecting rod, and the first transmission sleeve drives the sixth transmission sleeve, the lower transmission shaft and the four transmission sleeves to synchronously clockwise and counterclockwise rotate through a third ball head connecting rod.

Further, the left pedal assembly and the right pedal assembly are connected with the bottom frame through pedal supports.

Further, limiting bolts are arranged between the bottom of the left pedal assembly and the pedal support and between the bottom of the right pedal assembly and the pedal support.

Further, pedal cover plates are mounted at the left pedal assembly and the right pedal assembly.

Furthermore, both ends of the upper transmission shaft and the lower transmission shaft are rotatably supported with the underframe through bearings and bearing seats which are assembled in a matched manner or bearings and bearing sleeves which are assembled in a matched manner.

Furthermore, the first transmission sleeve and the second transmission sleeve are both in locking and sleeve joint with the upper transmission shaft through the first pin, and the fourth transmission sleeve and the sixth transmission sleeve are both in locking and sleeve joint with the lower transmission shaft through the second pin.

The invention has the beneficial effects that: the utility model provides a control mechanism of hydraulic pressure multiple unit valve, including bulldozing operating handle, push-and-pull flexible axle and through integrated lower transmission shaft, last transmission shaft, multiple unit valve bulldoze antithetical couplet, the broken antithetical couplet of multiple unit valve, multiple unit valve deflection antithetical couplet, left pedal assembly and right pedal assembly together of chassis. In the specific use process, the valve cores of the multi-way valve breaking connection and the multi-way valve deflection connection can be opened leftwards and rightwards respectively by operating the left pedal assembly and the right pedal assembly, the valve cores of the multi-way valve bulldozing connection can be opened leftwards and rightwards by operating the bulldozing control handle, and the opened valve cores can be automatically reset under a reset spring, so that the whole mechanism has the advantages of comfort in operation, stable performance, compact structure, convenience in manufacture and low cost, and is closer to the bearing capacity purchased by a user.

Drawings

The invention is further described below with reference to the figures and examples.

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the drawings and examples.

As shown in fig. 1, the control mechanism of the hydraulic multi-way valve of the present application includes a dozing control handle 15, a push-pull flexible shaft 18, and a lower transmission shaft 16, an upper transmission shaft 8, a multi-way valve dozing linkage 23, a multi-way valve breaking linkage 24, a multi-way valve deflecting linkage 25, a left pedal assembly 2 and a right pedal assembly 11 which are integrated together through an underframe 22, wherein the lower transmission shaft 16 is arranged along the Y direction, and both ends of the lower transmission shaft are rotatably connected with the underframe 22, and the upper transmission shaft 8 is arranged along the X direction, and both ends of the upper transmission shaft are also rotatably connected with the underframe 22. Specifically, the left pedal assembly 2 and the right pedal assembly 11 are both connected to the chassis through the pedal bracket 28. The two ends of the upper transmission shaft 8 and the lower transmission shaft 16 are rotatably supported by the bearing 6 and the bearing seat 5 which are assembled in a matched manner or the bearing and the bearing sleeve 21 which are assembled in a matched manner and the chassis 22, in the embodiment, the two ends of the upper transmission shaft are rotatably supported by the bearing and the bearing seat which are assembled in a matched manner and the chassis, the front end of the lower transmission shaft is rotatably supported by the bearing and the bearing seat which are assembled in a matched manner and the chassis, the rear end of the lower transmission shaft is rotatably supported by the bearing and the bearing sleeve which are assembled in a matched manner and the chassis, and the bearing is selected from the bearing 12202 GB/.

The lower transmission shaft 16 is rotatably sleeved with a transmission sleeve five 20, the transmission sleeve five 20 is connected with a valve core of the multi-way valve bulldozing union 23 through a connecting rod 19, clockwise and counterclockwise rotation of the transmission sleeve five 20 relative to the lower transmission shaft 16 can drive the valve core of the multi-way valve bulldozing union 23 to be opened leftwards and rightwards, and the bulldozing control handle 15 drives the transmission sleeve five to rotate clockwise and counterclockwise relative to the lower transmission shaft through a push-pull flexible shaft 18.

The lower transmission shaft 16 is rotatably sleeved with a third transmission sleeve 14, the third transmission sleeve 14 is connected with a valve core of the multi-way valve breaking linkage 24 through a connecting rod 19, clockwise and counterclockwise rotation of the third transmission sleeve 14 relative to the lower transmission shaft 16 can drive the valve core of the multi-way valve breaking linkage 24 to be opened leftwards and rightwards, the right end of the left pedal assembly 2 is connected with the third transmission sleeve 14 through a first ball head connecting rod 4, and upward and downward movement of the first ball head connecting rod 4 drives the third transmission sleeve 14 to clockwise and counterclockwise rotate relative to the lower transmission shaft 16.

Go up the left and right both ends of transmission shaft 8 and be fixed the cover respectively and be equipped with transmission cover one 7 and transmission cover two 9, the preceding, the back both ends of lower transmission shaft 16 are fixed the cover respectively and are equipped with transmission cover six 27 and transmission cover four 17, particularly, transmission cover one 7 and transmission cover two 9 all lock through round pin one 10 and cup joint with last transmission shaft 8, transmission cover four 17 and transmission cover six 27 all lock through round pin two 26 and cup joint with lower transmission shaft 16, 8X30 GB/T879.1 is all chooseed for use to round pin one 10 and round pin two 26. The fourth transmission sleeve 17 is connected with the valve core of the multi-way valve deflection link 25 through the connecting rod 19, and the clockwise and counterclockwise rotation of the fourth transmission sleeve 17 can drive the valve core of the multi-way valve deflection link 25 to be opened leftwards and rightwards. The right end of the right pedal assembly 11 is connected with a second transmission sleeve 9 through a second ball head connecting rod 12, the second transmission sleeve 2, the upper transmission shaft 8 and the first transmission sleeve 7 are driven to synchronously clockwise rotate and anticlockwise rotate by the upward and downward movement of the second ball head connecting rod 12, the first transmission sleeve 7 is connected with a sixth transmission sleeve 27 through a third ball head connecting rod 13, and the sixth transmission sleeve 27, the lower transmission shaft 16 and the fourth transmission sleeve 17 are driven to synchronously clockwise rotate and anticlockwise rotate by the upward and downward movement of the third ball head connecting rod 13.

The specific working principle of the operating mechanism is detailed below:

when the valve core of the multi-way valve crushing linkage 24 needs to be controlled to be opened towards the left side, the left foot is used for trampling the left side of the pedal of the left pedal assembly 2 downwards to drive the first ball head connecting rod 4 to move upwards, the third transmission sleeve 14 rotates clockwise around the lower transmission shaft 16 under the action of the upward pulling force of the first ball head connecting rod 4 to drive the corresponding connecting rod 19 to move leftwards, so that the valve core of the multi-way valve crushing linkage 24 is driven to move leftwards to realize opening, and after the trampling force of the left foot disappears, the valve core of the multi-way valve crushing linkage 24 automatically returns to the middle position to stop working under the action of the reset. When the valve core of the multi-way valve breaking linkage 24 needs to be controlled to be opened towards the right side, the movement process is opposite to the above, namely, the left foot is used for stepping down the right side of the pedal of the left pedal assembly 2, and the ball head connecting rod I4 is pushed to move downwards. The structure of the reset valve core of the reset spring is of the conventional design and is not shown in the attached drawings.

When the valve core of the multi-way valve deflection link 25 needs to be controlled to be opened towards the left side, the left side of the right pedal assembly 11 is stepped down by a right foot to drive the ball head connecting rod two 12 to move downwards, because the second transmission sleeve 9, the first transmission sleeve 7 and the upper transmission shaft 8 are connected into a whole through the first pin 10, therefore, the transmission sleeve I7 rotates anticlockwise around the upper transmission shaft 8 under the action of downward force and drives the ball head connecting rod III 13 to move downwards, because the six transmission sleeves 27 and the four transmission sleeves 17 are connected with the lower transmission shaft 16 into a whole through the second pin 26, therefore, the driving sleeve IV 17 rotates clockwise by taking the lower driving shaft 16 as the center under the action of downward force to drive the corresponding connecting rod 19 to move leftwards, thereby driving the valve core of the multi-way valve deflection link 25 to move leftwards to realize opening, when the treading force of the right foot disappears, and the valve core of the multi-way valve deflection link 25 automatically returns to the middle position to stop working under the action of a return spring. When the valve core of the multi-way valve deflection link 25 needs to be controlled to be opened towards the right side, the movement process is opposite to the above, namely, the right foot treads the right side of the right pedal assembly 11 downwards, and the ball head connecting rod two 12 is driven to move upwards. The structure of the reset valve core of the reset spring is of the conventional design and is not shown in the attached drawings.

When the valve core of the multi-way valve bulldozing unit 23 needs to be controlled to be opened towards the left side, the bulldozing control handle 15 is pushed forwards by a hand, the transmission sleeve five 20 is pulled by the push-pull flexible shaft 18 to rotate clockwise relative to the lower transmission shaft 16, the corresponding connecting rod is driven to move leftwards, so that the valve core of the multi-way valve bulldozing unit 23 is driven to move leftwards to realize opening, and when the pushing force of the hand disappears, the valve core of the multi-way valve bulldozing unit 23 automatically returns to the middle position to stop working under the action. When the valve core of the multi-way valve bulldozing unit 23 needs to be controlled to be opened towards the right side, the movement process is opposite to the movement process, namely, the bulldozing control handle 15 is pulled backwards by hands, and the transmission sleeve five 20 is pulled to rotate anticlockwise relative to the lower transmission shaft 16 through the push-pull flexible shaft 18. The structure of the reset valve core of the reset spring is of the conventional design and is not shown in the attached drawings.

Preferably, for avoiding external force mistake to step on left pedal assembly 2 and right pedal assembly 11, footboard apron 3 is all installed in left pedal assembly and right pedal assembly department, during the use, open the footboard apron can.

Preferably, the limiting bolts 1 are arranged between the bottom of the left pedal assembly 2 and the pedal bracket 28 and between the bottom of the right pedal assembly 11 and the pedal bracket 28, and the downward strokes of the left pedal assembly and the right pedal assembly can be limited by the corresponding limiting bolts respectively.

In conclusion, by adopting the control mechanism of the hydraulic multi-way valve, in the specific use process, the valve cores of the multi-way valve breaking connection and the multi-way valve deflection connection can be respectively opened leftwards and rightwards by operating the left pedal assembly and the right pedal assembly, the valve cores of the multi-way valve bulldozing connection can be opened leftwards and rightwards by operating the bulldozing control handle, and the opened valve cores can be automatically reset under the reset spring, so that the whole mechanism has the advantages of comfortable operation, stable performance, compact structure, convenience in manufacture and low cost, and is closer to the bearing force purchased by a user

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.