阅读说明：本技术 一种油路管道用龙头 (Tap for oil way pipeline ) 是由 钱琪升 于 2021-08-18 设计创作，主要内容包括：本发明涉及龙头领域,具体的说是一种油路管道用龙头,包括本体和把手,所述本体顶部固定有一个封堵用的顶板,所述顶板顶部固定有一个顶盖,所述把手安装在顶盖的顶部,所述本体呈三通管状结构。可以解决现有的油路管道用龙头在使用时,把手在带动阀体转动时利用的是连接阀体的转杆,而转杆在转动的过程中一方面会对封堵块造成磨损,使得龙头在长时间使用过后容易出现龙头本体与把手之间连接处出现泄漏的情况,另一方面由于与把手连接的转杆外壁需要开设外螺纹来满足可转动的需求,而外螺纹的设置使得转杆本身与龙头本体之间就存在缝隙,从而导致龙头在使用时当油路管道水压过大的情况时转杆与龙头本体之间的缝隙会有油溢出。(The invention relates to the field of taps, in particular to a tap for an oil pipeline, which comprises a body and a handle, wherein a top plate for plugging is fixed at the top of the body, a top cover is fixed at the top of the top plate, the handle is arranged at the top of the top cover, and the body is of a three-way tubular structure. Can solve current tap for oil circuit pipeline when using, what the handle utilized when driving the valve body and rotate is the bull stick of connecting the valve body, and the bull stick can cause wearing and tearing to the shutoff piece on the one hand at the pivoted in-process, make the tap appear the condition that the junction appears leaking between tap body and the handle after long-time use easily, on the other hand is owing to need set up the external screw thread with the bull stick outer wall of being connected of handle and satisfies rotatable demand, and the setting up of external screw thread makes just there is the gap between bull stick itself and the tap body, thereby lead to the tap when the too big condition of oil circuit pipeline water pressure when using the gap between bull stick and the tap body to have oil to spill over.)

1. The faucet for the oil pipeline comprises a body (1) and a handle (6), and is characterized in that a top plate (4) for plugging is fixed at the top of the body (1), a top cover (5) is fixed at the top of the top plate (4), the handle (6) is installed at the top of the top cover (5), the body (1) is of a three-way tubular structure, two symmetrical oil inlets (2) are formed in the side wall of the body (1), a mixed oil outlet (3) located on the outer wall of the body (1) is formed between the two oil inlets (2), and the two oil inlets (2) and the mixed oil outlet (3) are communicated through an inner cavity (24) inside the body (1);

the inner cavity (24) is arranged in the body (1), the top of the inner cavity (24) is connected with an upper section sliding rod (10) in a penetrating manner, the bottom of the inner cavity (24) is connected with a lower section sliding rod (18) in a penetrating manner, the inner parts of the upper section sliding rod (10) and the lower section sliding rod (18) are respectively provided with a thread cavity, an internal connecting screw rod (8) is connected between the upper section sliding rod (10) and the lower section sliding rod (18) in a penetrating manner, the internal connecting screw rods (8) are connected in the two thread cavities in a screwing manner, the top end of the internal connecting screw rod (8) penetrates through the top cover (5) and is connected with the handle (6), and a valve body is movably arranged between the upper section sliding rod (10) and the lower section sliding rod (18);

the valve body comprises a distributing valve plate (11) and a loop bar (12), the loop bar (12) is positioned between an upper section slide bar (10) and a lower section slide bar (18) and connected with the upper section slide bar (10) and the lower section slide bar (18), and the distributing valve plate (11) which is obliquely arranged and is of a circular structure is fixed in the middle of the outer part of the loop bar (12).

2. The faucet according to claim 1, wherein the top end of the upper sliding rod (10) is connected into the top cover (5), a blocking block (9) located at the top of the body (1) is fixedly installed between the upper sliding rod (10) and the inner wall of the top of the inner cavity (24), another blocking block (9) located at the bottom of the body (1) is fixedly installed at the joint between the bottom end of the lower sliding rod (18) and the inner wall of the bottom of the inner cavity (24), and the bottom end of the lower sliding rod (18) is connected into the blocking block (9) located at the bottom of the body (1).

3. The faucet of claim 2, wherein an intermediate cavity (19) is arranged inside the sleeve rod (12), a threaded sleeve (20) is fixed in the middle of the intermediate cavity (19), the threaded sleeve (20) is fixedly connected with the inner wall of the distributing valve plate (11), and the threaded sleeve (20) is screwed on the internal connecting screw rod (8).

4. The faucet according to claim 3, wherein the outer walls of the two sides of the bottom end of the upper section slide rod (10) and the two sides of the top end of the lower section slide rod (18) are provided with pressure relief holes (21), the outer walls of the two sides of the bottom end of the upper section slide rod (10) and the two sides of the top end of the lower section slide rod (18) are provided with concave side grooves (22), an air bag (23) is installed inside each side groove (22), and the air bag (23) is communicated with the pressure relief holes (21) at the corresponding position.

5. The faucet for the oil pipeline as claimed in claim 1, wherein the handle (6) comprises an upper handle (13), a sleeve cap (14) and a lower handle (15), the sleeve cap (14) is sleeved on the top end of the internally-connected screw rod (8), the upper handle (13) is welded on the side wall of the sleeve cap (14), the lower handle (15) is located below the upper handle (13), a pin shaft (16) is installed in the middle of the bottom of the upper handle (13), and the lower handle (15) is rotatably connected with the upper handle (13) through the pin shaft (16).

6. A tap for oil pipes according to claim 5 characterized in that the outer wall of the edge of the top cover (5) is provided with a ring of external teeth (7).

7. The faucet of claim 6, wherein the end of the lower handle (15) close to the cap (14) is provided with a toothed chuck (17), and the toothed chuck (17) is matched with the external tooth edge (7).

Technical Field

The invention relates to the field of taps, in particular to a tap for an oil pipeline.

Background

The tap is a size switch used for controlling the flow rate of fluid and has the effect of throttling. The faucet is an assembly with a valve and a faucet body, and is commonly used for water pipes or oil pipelines, wherein the faucet comprises an oil pipeline faucet used for adjusting oil feeding speeds of a plurality of circulating pipelines.

However, the existing faucet for oil pipelines used for adjusting the oil inlet speeds of a plurality of flow pipelines still has certain defects when in use, because the valve body inside the faucet needs to be adjusted in position through the rotation of the handle, the handle utilizes the rotating rod connected with the valve body when driving the valve body to rotate, and the rotating rod can cause abrasion to the blocking block in the rotating process, the leakage condition of the joint between the faucet body and the handle can easily occur after the faucet is used for a long time, on the other hand, the outer wall of the rotating rod connected with the handle needs to be provided with an external thread to meet the rotatable requirement, and the external thread enables a gap to exist between the rotating rod and the faucet body, so that the gap between the rotating rod and the faucet body can overflow oil when the oil pipeline is over-high in water pressure when the faucet is used.

Disclosure of Invention

The invention aims to provide a faucet for an oil pipeline, which can solve the problems that when the existing faucet for the oil pipeline used for adjusting the oil inlet speed of a plurality of circulating pipelines is used, because the valve body in the faucet needs to be adjusted in position through the rotation of the handle, the handle utilizes the rotating rod connected with the valve body when driving the valve body to rotate, and the rotating rod can abrade the blocking block in the rotating process, thereby leading the tap to be easy to leak at the joint between the tap body and the handle after long-time use, on the other hand, the outer wall of the rotating rod connected with the handle needs to be provided with an external thread to meet the rotatable requirement, and the arrangement of the external thread ensures that a gap exists between the rotating rod and the tap body, therefore, when the water pressure of the oil pipeline is overlarge, oil can overflow from a gap between the rotating rod and the faucet body when the faucet is used.

The purpose of the invention can be realized by the following technical scheme:

a faucet for an oil pipeline comprises a body and a handle, wherein a top plate for plugging is fixed at the top of the body, a top cover is fixed at the top of the top plate, the handle is installed at the top of the top cover, the body is of a three-way tubular structure, two symmetrical oil inlets are formed in the side wall of the body, a mixed oil outlet located in the outer wall of the body is formed between the two oil inlets, and the two oil inlets are communicated with the mixed oil outlet through an inner cavity in the body;

the inner cavity is arranged in the body, an upper section sliding rod is connected to the top of the inner cavity in a penetrating mode, a lower section sliding rod is connected to the bottom of the inner cavity in a penetrating mode, threaded cavities are formed in the upper section sliding rod and the lower section sliding rod respectively, an internal connecting lead screw is connected between the upper section sliding rod and the lower section sliding rod in a penetrating mode and is connected to the two threaded cavities in a screwed mode, the top end of the internal connecting lead screw penetrates through the top cover and is connected with the handle, and a valve body is movably mounted between the upper section sliding rod and the lower section sliding rod;

the valve body comprises a distributing valve plate and a loop bar, the loop bar is positioned between the upper section sliding rod and the lower section sliding rod and connected with the upper section sliding rod and the lower section sliding rod, and the distributing valve plate which is obliquely arranged and is in a circular structure is fixed in the middle of the outer part of the loop bar.

Preferably, the top end of the upper section sliding rod is inserted into the top cover, a plugging block located at the top of the body is fixedly installed between the upper section sliding rod and the inner wall of the top of the inner cavity, another plugging block located at the bottom of the body is fixedly installed at the joint between the bottom end of the lower section sliding rod and the inner wall of the bottom of the inner cavity, and the bottom end of the lower section sliding rod is inserted into the plugging block located at the bottom of the body.

Preferably, a middle cavity is arranged inside the loop bar, a threaded sleeve is fixed in the middle of the middle cavity, the threaded sleeve is fixedly connected with the inner wall of the material distributing valve plate, and the threaded sleeve is screwed on the internal connection screw rod.

Preferably, the outer walls of the two sides of the bottom end of the upper section of sliding rod are provided with pressure relief holes, the outer walls of the two sides of the top end of the lower section of sliding rod are provided with concave side grooves, and the outer walls of the two sides of the top end of the upper section of sliding rod are provided with concave side grooves.

Preferably, the handle comprises an upper handle, a sleeve cap and a lower handle, the sleeve cap is sleeved at the top end of the internal connection screw rod, the upper handle is welded on the side wall of the sleeve cap, the lower handle is positioned below the upper handle, a pin shaft is arranged in the middle of the bottom of the upper handle, and the lower handle is rotatably connected with the upper handle through the pin shaft.

Preferably, a circle of outer tooth edge is arranged on the outer wall of the edge of the top cover.

Preferably, a tooth-shaped chuck is arranged at the end part of the lower handle close to the sleeve cap, and the tooth-shaped chuck is matched with the external tooth edge for use.

A use method of a faucet for an oil pipeline comprises the following specific steps:

the faucet and the oil way pipeline are butted, the two oil inlets are butted with the oil inlet pipe in the oil way pipeline respectively, the mixed oil outlet is butted with the oil outlet pipe, the faucet and the oil way pipeline can be put into use after the butting is finished, oil entering from the two oil inlets enters the mixed oil outlet under the guiding action of the valve body to be mixed, and finally the oil is discharged from the mixed oil outlet;

when the faucet is used and the oil inlet speeds of two oil inlets are required to be adjusted, firstly, the lower handle is kneaded to release the tooth-shaped chuck, then the whole handle is rotated, the sleeve cap on the handle is utilized to drive the internal lead screw to rotate, the internal lead screw drives the sleeve rod on the valve body to move up and down along the upper section slide rod and the lower section slide rod to adjust the positions in the rotating process by utilizing the threaded sleeve, the positions of the upper section slide rod and the lower section slide rod are kept fixed, the sleeve rod drives the distributing valve plate to move up and down in the up and down moving process, when the distributing valve plate moves up along the upper section slide rod, the caliber of an oil inlet close to the bottom end of the distributing valve plate is reduced, the oil inlet speed is reduced, the caliber of the tooth-shaped oil inlet close to the top end of the distributing valve plate is increased, the handle is released after the oil inlet speed adjustment is completed, the lower handle clamps the top cover by utilizing the chuck, thereby locking the handle, in the process of adjusting the position of the valve body, when the valve body moves upwards, the threaded sleeve presses the gas in the upper half part of the middle cavity, which uses the threaded sleeve as a boundary, into the air bag in the side groove from the pressure relief hole in the process of driving the valve body to move upwards, so that the situation that the valve body cannot move up and down smoothly due to overhigh internal pressure of the body is effectively avoided, on the other hand, when the valve body moves upwards, the internal pressure is increased due to the fact that the space in the upper half part of the inner cavity is reduced, the expanded air bag fills the gap between the outer wall of the upper-section sliding rod and the inner wall of the valve body, and the situation that the oil body overflows into the middle cavity from the gap between the outer wall of the upper-section sliding rod and the inner wall of the valve body due to the increase of the pressure is avoided.

The invention has the beneficial effects that: due to the arrangement of the handle, when the oil inlet speeds of the two oil inlets are required to be adjusted, the tooth-shaped chuck is released by pinching the lower handle, then the whole handle is rotated to adjust the position of the valve body, the handle is released after the oil inlet speed is adjusted, the top cover is clamped by the tooth-shaped chuck, and therefore the handle is locked, and the oil inlet speed adjusting device is more convenient to use.

Because the upper section sliding rod, the lower section sliding rod and the internal connecting screw rod are adopted to replace the traditional rotating shaft to be connected with the valve body, when the position of the valve body is adjusted, the internal connecting screw rod is driven to rotate by the sleeve cap on the handle, the internal connecting screw rod drives the sleeve rod on the valve body to move up and down along the upper section sliding rod and the lower section sliding rod to adjust the position in the rotating process by the threaded sleeve, the positions of the upper section sliding rod and the lower section sliding rod are kept fixed, and the sleeve rod drives the material distributing valve plate to move up and down in the up and down moving process, on one hand, the upper section sliding rod and the lower section sliding rod are not rotated, so that abrasion between the upper section sliding rod, the lower section sliding rod and the plugging block cannot occur due to long-time rotation, thereby avoiding the situation that oil body leaks from the position of the plugging block due to abrasion of the plugging block, on the other hand, the internal connecting screw rod is accessed from the inner parts of the upper section sliding rod and the lower section sliding rod, and is not directly accessed into the interior of the plugging block by the traditional mode, therefore, the external thread on the outer wall of the internal connecting screw rod cannot influence the sealing performance of the top of the body;

because the pressure relief hole, the setting of limit groove and gasbag for the screw sleeve uses the screw sleeve to press into the gasbag of limit inslot from the pressure relief hole with the gas of the first half of boundary in the middle chamber inside the in-process that the moving valve body shifts up, thereby effectively avoid appearing the unable smooth and easy condition of moving from top to bottom of valve body because of the inside pressure of body is too high, on the other hand because the first half space of inner chamber reduces inside pressure increase when the valve body moves up, the gap between upper segment litter outer wall and the valve body inner wall can be filled to the gasbag of swelling, avoid the oil body to overflow into middle intracavity because of the pressure increase from the gap between upper segment litter outer wall and the valve body inner wall.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of FIG. 1 in accordance with the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a schematic view of an assembled structure of the valve body of the present invention;

FIG. 5 is a schematic view of the handle of the present invention;

FIG. 6 is a schematic view of the internal structure of the valve body of the present invention;

FIG. 7 is an enlarged view of a detail of area A of FIG. 6 according to the present invention;

in the figure: 1. a body; 2. an oil inlet; 3. a mixed oil outlet; 4. a top plate; 5. a top cover; 6. a handle; 7. an outer tooth edge; 8. internally connecting a screw rod; 9. a plugging block; 10. an upper section slide rod; 11. a material distributing valve plate; 12. a loop bar; 13. an upper handle; 14. sleeving a cap; 15. a lower handle; 16. a pin shaft; 17. a tooth-shaped chuck; 18. a lower segment slide rod; 19. a middle cavity; 20. a threaded sleeve; 21. a pressure relief vent; 22. a side groove; 23. an air bag; 24. an inner cavity.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-7, a faucet for an oil pipeline comprises a body 1 and a handle 6, wherein a top plate 4 for plugging is fixed at the top of the body 1, a top cover 5 is fixed at the top of the top plate 4, the handle 6 is installed at the top of the top cover 5, the body 1 is of a three-way tubular structure, two symmetrical oil inlets 2 are arranged on the side wall of the body 1, a mixed oil outlet 3 located on the outer wall of the body 1 is arranged between the two oil inlets 2, and the two oil inlets 2 are communicated with the mixed oil outlet 3 through an inner cavity 24 inside the body 1; the inner cavity 24 is arranged in the body 1, the top of the inner cavity 24 is connected with an upper section slide rod 10 in a penetrating manner, the bottom of the inner cavity 24 is connected with a lower section slide rod 18 in a penetrating manner, the inner parts of the upper section slide rod 10 and the lower section slide rod 18 are respectively provided with a thread cavity, an internal connecting screw rod 8 is connected between the upper section slide rod 10 and the lower section slide rod 18 in a penetrating manner, the internal connecting screw rods 8 are connected in the two thread cavities in a screwing manner, the top end of the internal connecting screw rod 8 penetrates through the top cover 5 and is connected with the handle 6, and a valve body is movably arranged between the upper section slide rod 10 and the lower section slide rod 18.

The top end of the upper section slide rod 10 is connected into the top cover 5, a sealing block 9 positioned at the top of the body 1 is fixedly arranged between the upper section slide rod 10 and the inner wall at the top of the inner cavity 24, another sealing block 9 positioned at the bottom of the body 1 is fixedly arranged at the joint between the bottom end of the lower section slide rod 18 and the inner wall at the bottom of the inner cavity 24, the bottom end of the lower section slide rod 18 is connected into the sealing block 9 positioned at the bottom of the body 1, and the upper section slide rod 10 and the lower section slide rod 18 need to maintain the up-and-down movement of the valve body, therefore, the outer walls of the upper sliding rod 10 and the lower sliding rod 18 are smooth, so that when the upper sliding rod 10 and the lower sliding rod 18 are connected into the interior of the blocking block 9, the gap between the upper sliding rod 10 and the blocking block 9 is minimized, the internal connecting screw rod 8 is connected from the inside of the upper section slide rod 10 and the lower section slide rod 18, but is not directly connected into the inside of the body 1 through the plugging block in the traditional way, so that the external thread on the outer wall of the internal connecting screw rod 8 does not influence the sealing performance of the top of the body 1.

The valve body comprises a distributing valve plate 11 and a loop bar 12, the loop bar 12 is positioned between an upper section slide bar 10 and a lower section slide bar 18 and is connected with the upper section slide bar 10 and the lower section slide bar 18, and the distributing valve plate 11 which is obliquely arranged and is in a circular structure is fixed at the middle position outside the loop bar 12. A middle cavity 19 is arranged in the loop bar 12, a thread sleeve 20 is fixed in the middle of the middle cavity 19, the thread sleeve 20 is fixedly connected with the inner wall of the material distributing valve plate 11, the thread sleeve 20 is screwed on the internal connecting screw rod 8, therefore, when the position of the valve body is adjusted, the internal connecting screw rod 8 is driven to rotate by the sleeve cap 14 on the handle 6, the sleeve rod 12 on the valve body is driven by the threaded sleeve 20 to move up and down along the upper section slide rod 10 and the lower section slide rod 18 to adjust the position by the internal connecting screw rod 8 in the rotating process, while the positions of the upper section slide rod 10 and the lower section slide rod 18 are kept fixed, the loop bar 12 drives the material distributing valve plate 11 to move up and down in the process of moving up and down, in this way, the upper section slide rod 10 and the lower section slide rod 18 do not rotate, therefore, abrasion among the upper section sliding rod 10, the lower section sliding rod 18 and the blocking block 9 due to long-time rotation can not occur, and the situation that oil bodies leak from the position of the blocking block 9 due to abrasion of the blocking block 9 is avoided.

The outer walls of the upper and lower sides of the bottom of the upper section slide rod 10 and the outer walls of the upper and lower sides of the top of the lower section slide rod 18 are provided with pressure relief holes 21, and the outer walls of the upper and lower sides of the bottom of the upper section slide rod 10 and the outer walls of the upper and lower sides of the top of the lower section slide rod 18 are provided with concave side grooves 22, each side groove 22 is internally provided with an air bag 23, and the air bag 23 is communicated with the pressure relief hole 21 at the corresponding position, so that the air bag 23 is communicated with the pressure relief hole 21, the air bag 23 is pressed into the air bag 23 in the side groove 22 from the pressure relief hole 21 when the threaded sleeve 20 moves up and down the middle cavity 19 with the threaded sleeve 20 as a boundary, and therefore, the situation that the valve body cannot move up and down smoothly due to the fact that the internal pressure is increased because the space of the upper half section of the inner cavity 24 is reduced when the valve body moves up and the inflated air bag 23 can fill the gap between the outer wall of the upper section slide rod 10 and the inner wall of the valve body, the oil body is prevented from overflowing into the middle cavity 19 from the gap between the outer wall of the upper section slide rod 10 and the inner wall of the valve body due to the increase of pressure.

The handle 6 comprises an upper handle 13, a sleeve cap 14 and a lower handle 15, the sleeve cap 14 is sleeved at the top end of the internal connection screw rod 8, the upper handle 13 is welded on the side wall of the sleeve cap 14, the lower handle 15 is positioned below the upper handle 13, a pin shaft 16 is installed in the middle of the bottom of the upper handle 13, and the lower handle 15 is rotatably connected with the upper handle 13 through the pin shaft 16. The outer wall of the edge of the top cover 5 is provided with a circle of outer toothed edge 7. The end part of the lower handle 15 close to the sleeve cap 14 is provided with a toothed chuck 17, the toothed chuck 17 is matched with the outer tooth edge 7 for use, when the oil inlet speed of the two oil inlets 2 needs to be adjusted, the toothed chuck 17 is released by pinching the lower handle 15, then the whole handle 6 is rotated to adjust the position of the valve body, after the oil inlet speed is adjusted, the handle 6 is released, the lower handle 15 utilizes the toothed chuck 17 to clamp the top cover 5, so that the handle 6 is locked, and the use is more convenient.

When the invention is used, a faucet is butted with an oil pipeline, two oil inlets 2 are butted with an oil inlet pipe in the oil pipeline respectively, a mixed oil outlet 3 is butted with an oil outlet pipe, the faucet can be put into use after the butting is finished, oil entering from the two oil inlets 2 enters the mixed oil outlet 3 to be mixed under the guiding action of a valve body and is finally discharged from the mixed oil outlet 3, when the faucet is used and the oil inlet speed of the two oil inlets 2 needs to be adjusted, firstly, a lower handle 15 is pressed to release a tooth-shaped chuck 17, then, the whole handle 6 is rotated, a sleeve cap 14 on the handle 6 is utilized to drive an internal lead screw 8 to rotate, the internal lead screw 8 utilizes a threaded sleeve 20 to drive a sleeve rod 12 on the valve body to movably adjust the position up and down along an upper section slide rod 10 and a lower section slide rod 18 in the rotating process, and the positions of the upper section slide rod 10 and the lower section slide rod 18 are kept fixed, the loop bar 12 drives the distributing valve plate 11 to move up and down in the process of moving up and down, when the distributing valve plate 11 moves up along the upper section slide rod 10, the caliber of the oil inlet 2 close to the bottom end of the distributing valve plate 11 is reduced, the oil inlet speed is reduced, the caliber of the oil inlet 2 close to the top end of the distributing valve plate 11 is increased, the oil inlet speed is increased, the handle 6 is released after the oil inlet speed is adjusted, the lower handle 15 clamps the top cover 5 by using the tooth-shaped chuck 17, so that the handle 6 is locked, in the process of adjusting the position of the valve body, when the valve body moves up, due to the arrangement of the pressure relief holes 21, the side grooves 22 and the air bags 23, the threaded sleeve 20 enables the gas in the middle cavity 19 to be pressed into the air bags 23 in the side grooves 22 from the pressure relief holes 21 by taking the threaded sleeve 20 as a boundary in the process of moving up the valve body, so that the situation that the valve body cannot move up and down smoothly due to overhigh pressure inside the body 1 is effectively avoided, on the other hand, when the valve body moves upwards, because the space of the upper half section of the inner cavity 24 is reduced, the internal pressure intensity is increased, the expanded air bag 23 can fill the gap between the outer wall of the upper section sliding rod 10 and the inner wall of the valve body, the phenomenon that oil body overflows into the middle cavity 19 from the gap between the outer wall of the upper section sliding rod 10 and the inner wall of the valve body due to the increase of the pressure intensity is avoided, and because the space of the side groove 22 and the space of the middle cavity 19 are limited and the materials of the upper section sliding rod 10 and the lower section sliding rod 18 of the material distributing valve plate 11 are limited, the air bag 23 only expands and the condition that the valve body is pressed outwards is avoided, and therefore the condition that the gap between the outer wall of the upper section sliding rod 10 and the inner wall of the valve body is increased is avoided.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.