CN211975891U

CN211975891U - Angle type pneumatic control valve

Info

Publication number: CN211975891U
Application number: CN202020274753.2U
Authority: CN
Inventors: 林芳健
Original assignee: Suzhou Semus Precision Machinery Co ltd
Current assignee: Suzhou Semus Precision Machinery Co ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-11-20
Anticipated expiration: 2030-03-09

Abstract

The utility model discloses an angle formula pneumatic control valve, it includes the valve body, the cylinder has been placed to the top of valve body, the below of cylinder is provided with the connecting axle, the connecting axle runs through the inside that the last lateral wall of valve body extends to the valve body, the inside of valve body is provided with the valve port of giving vent to anger by the below, the inside of valve body is provided with the valve port of admitting air by the right side, the utility model discloses a can carry out multistage sealed function to the gas pocket, it is sealed effectual, and the whole convenient to detach of sealing member and then be convenient for periodic replacement, avoided the whole sealing performance of sealing member wearing and tearing influence, ensure to install holistic work efficiency.

Description

Angle type pneumatic control valve

Technical Field

The utility model belongs to the technical field of the pneumatic valve, concretely relates to angle formula pneumatic control valve.

Background

The pneumatic control valve refers to various pneumatic elements which control the pressure, flow and flow direction of air flow in a pneumatic system and ensure the normal operation of a pneumatic actuator or mechanism, wherein the angle type pneumatic control valve is applied to the laying operation of a gas pipeline, but the existing angle type pneumatic control valve still has some defects.

The prior art angle type pneumatic control valve has the following problems: 1. the existing angle type pneumatic control valve only seals the air guide hole through the rubber plug, the sealing effect is poor, the rubber plug is not convenient to detach and replace, the abrasion to the rubber plug is serious in the process of back-and-forth expansion, and the sealing efficiency is affected even after the angle type pneumatic control valve is used for a long time; 2. the buffer spring of the existing angle type pneumatic control valve is arranged in an exposed structure and is in water vapor for a long time, so that the spring is corroded, the service life of the spring is further influenced, and unnecessary economic loss is brought.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides an angle formula pneumatic control valve has multistage sealing layer, and is sealed effectual, and the whole convenient to detach of sealing member and then the periodic replacement of being convenient for, has avoided sealed pad wearing and tearing to influence holistic sealing performance, ensures to install holistic work efficiency to and can effectively protect buffer spring, avoid it to expose for a long time in steam by the corrosion the condition appearance, when guaranteeing its work efficiency, can effectively prolong its life's characteristics.

In order to achieve the above object, the utility model provides a following technical scheme: an angle type pneumatic control valve comprises a valve body, wherein an air cylinder is placed above the valve body, a connecting shaft is arranged below the air cylinder, the connecting shaft penetrates through the upper side wall of the valve body and extends into the valve body, an air outlet valve port is arranged below the valve body, an air inlet valve port is arranged right side of the valve body, a sealing plate is fixed between the left side wall and the right side wall of the valve body, a guide plate is arranged above the sealing plate, fixing seats are symmetrically fixed on the left side and the right side of the upper part of the sealing plate, the fixing seats and the guide plate are fixedly connected through fixing bolts, a valve rod is arranged below the connecting shaft, the valve rod penetrates through the guide plate and extends to the upper part of the sealing plate, a connecting block is fixed below the valve rod, a clamping groove is formed below the inner part of the connecting block, and an installation block, the upper part of the mounting block is bilaterally and symmetrically fixed with screw rods, the screw rod penetrating connection block extends to the upper part of the connection block, the outer side of the screw rod and the upper part of the connection block are meshed with nuts, the lower part of the mounting block is fixed with sealing elements, the inner part of the sealing plate and the position corresponding to the sealing elements are provided with air holes, one side between the guide plate and the sealing plate and positioned at the mutual approach of two fixing bolts is bilaterally and symmetrically fixed with first guide rods, the first guide rods penetrate through the connection block, the outer side of the valve rod is provided with a protective outer rod by the upper part, the inner part of the valve rod and the position corresponding to the valve rod are provided with first placing holes, the outer side of the valve rod by the lower part and the inner side of the protective outer rod are provided with a protective inner rod, the inner part of the protective inner rod and the position corresponding to the valve rod are provided with, the utility model discloses a protection inner rod, including protection outer rod, slider, protection inner rod, protection outer rod, protection inner.

Preferably, the sealing member includes first annular seal piece, first annular seal groove, second annular seal piece and the sealed piece of cylindricality, the outside of the sealed piece of cylindricality is provided with the sealed piece of second annular, the inside of closing plate and the position department that corresponds the sealed piece of second annular have seted up the second annular seal groove, one side that sealed piece cylindricality seal piece was kept away from to the sealed piece of second annular seal is provided with first annular seal piece, first annular seal groove has been seted up to the inside of closing plate and the position department that corresponds first annular seal piece.

Preferably, the material of the cylindrical sealing block, the second annular sealing block and the first annular sealing block is rubber.

Preferably, the second guide rod runs through the slider, a first guide hole is formed in the slider and in a position corresponding to the second guide rod, the buffer spring is located above the slider, one side, close to the slider, of the buffer spring is welded and fixed with the slider, and one side, far away from the slider, of the buffer spring is welded and fixed with the protective outer rod.

Preferably, a second guide hole is formed in the connecting block and at a position corresponding to the first guide rod, a smooth through hole is formed in the connecting block and at a position corresponding to the screw, and the cross sectional area of the smooth through hole is 1.1 times that of the screw.

Preferably, the screw cap is provided with a threaded hole in the inner part corresponding to the screw, the inner side wall of the threaded hole is provided with an internal thread, the outer side wall of the screw is provided with an external thread, and the internal thread and the external thread are meshed with each other.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up first guide bar, including the sealed piece of first annular, first annular seal groove, second annular seal groove, the sealing member of the sealed piece of second annular and the sealed piece of cylindricality, screw rod, nut, joint groove and installation piece isotructure, under mutually supporting of these structures, realized can carrying out multistage sealed function to the gas pocket, it is sealed effectual, and the whole convenient to detach of sealing member and then be convenient for regularly change, avoided the sealing member wearing and tearing to influence holistic sealing performance, ensure the holistic work efficiency of device.

2. The utility model discloses a set up the protection outer pole, firstly place hole, protection interior pole, third annular seal groove, the sealed piece of third annular, slider, second guide bar, buffer spring and spout isotructure, under the mutually supporting of these structures, realized can carrying out the function of effective protection to buffer spring, avoided it to expose for a long time in steam by the corrosion the condition appearance, when guaranteeing its work efficiency, can effectively prolong its life.

Drawings

Fig. 1 is a schematic structural view of a cross section of an angle type pneumatic control valve of the present invention;

fig. 2 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 3 is an enlarged schematic structural view of the utility model at the point B in fig. 1;

in the figure: 1. a valve body; 2. an air inlet valve port; 3. a connecting shaft; 4. a cylinder; 5. a protective outer pole; 6. a first guide bar; 7. a fixed seat; 8. a seal member; 81. a first annular seal block; 82. a first annular seal groove; 83. a second annular seal groove; 84. a second annular seal block; 85. a cylindrical seal block; 9. connecting blocks; 10. an air outlet valve port; 11. air holes; 12. a sealing plate; 13. fixing the bolt; 14. a guide plate; 15. a valve stem; 16. a screw; 17. a nut; 18. a clamping groove; 19. mounting blocks; 20. a first placing hole; 21. a second placing hole; 22. a protective inner rod; 23. a third annular seal groove; 24. a third annular seal block; 25. a slider; 26. a second guide bar; 27. a buffer spring; 28. a chute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention relates to an angle type pneumatic control valve, which comprises a valve body 1, a cylinder 4 disposed above the valve body 1, a connecting shaft 3 disposed below the cylinder 4, the connecting shaft 3 extending through the upper sidewall of the valve body 1 to the inside of the valve body 1, a gas outlet port 10 disposed below the valve body 1, a gas inlet port 2 disposed inside the valve body 1, a sealing plate 12 fixed between the left and right sidewalls of the inside of the valve body 1, a guide plate 14 disposed above the sealing plate 12, fixing seats 7 symmetrically fixed on the left and right sides of the upper side of the sealing plate 12, a valve rod 15 disposed below the connecting shaft 3, a valve rod 15 extending above the sealing plate 12 through the guide plate 14, a connecting block 9 fixed below the valve rod 15, a locking groove 18 disposed below the inside of the connecting block 9, the inside in joint groove 18 is provided with installation piece 19, the top bilateral symmetry of installation piece 19 is fixed with screw rod 16, screw rod 16 through connection piece 9 extends to the top of connecting block 9, the outside of screw rod 16 and the top meshing that is located connecting block 9 have nut 17, for the sake of convenience, nut 17 rotates in the screw rod 16 outside, the inside of nut 17 and the position department that corresponds screw rod 16 offer threaded hole, the inside wall of screw hole is provided with the internal thread, the lateral wall of screw rod 16 is provided with the external screw thread, internal thread and external screw thread intermeshing.

A sealing element 8 is fixed below the mounting block 19, an air hole 11 is formed in the sealing plate 12 and corresponding to the position of the sealing element 8, first guide rods 6 are fixed between the guide plate 14 and the sealing plate 12 and positioned on the side, close to each other, of the two fixing bolts 13 in a bilateral symmetry manner, the first guide rods 6 penetrate through the connecting block 9, a protection outer rod 5 is arranged on the outer side of the valve rod 15 and above the protection outer rod 5, a first placing hole 20 is formed in the protection outer rod 5 and corresponding to the position of the valve rod 15, a protection inner rod 22 is arranged on the outer side of the valve rod 15 and below the protection outer rod 5 and corresponding to the position of the protection outer rod 5, a second placing hole 21 is formed in the protection inner rod 22 and corresponding to the position of the valve rod 15, sliders 25 are fixed on the outer side of the protection inner rod 22 and above the protection inner rod in a bilateral symmetry manner, a sliding groove 28 is formed in the side wall of the, a buffer spring 27 is arranged on the outer side of the second guide rod 26, a third annular sealing block 24 is fixed on one side, close to the protective inner rod 22, of the protective outer rod 5, and a third annular sealing groove 23 is formed in the position, close to the outer side and corresponding to the third annular sealing block 24, of the inner side wall of the protective inner rod 22.

The sealing element 8 comprises a first annular sealing block 81, a first annular sealing groove 82, a second annular sealing groove 83, a second annular sealing block 84 and a cylindrical sealing block 85, the second annular sealing block 84 is arranged on the outer side of the cylindrical sealing block 85, the second annular sealing groove 83 is formed in the inner portion of the sealing plate 12 and corresponds to the position of the second annular sealing block 84, the first annular sealing block 81 is arranged on one side, away from the sealing block cylindrical sealing block 85, of the second annular sealing block 84, and the first annular sealing groove 82 is formed in the inner portion of the sealing plate 12 and corresponds to the position of the first annular sealing block 81.

The cylindrical sealing block 85, the second annular sealing block 84 and the first annular sealing block 81 are all made of rubber.

In order to facilitate the second guide bar 26 to start the guide effect to the slider 25, and be convenient for buffer spring 27 to place stably, second guide bar 26 runs through slider 25, first guiding hole has been seted up to the inside of slider 25 and the position department that corresponds second guide bar 26, buffer spring 27 is located slider 25's top, one side and slider 25 welded fastening that buffer spring 27 is close to slider 25, one side and the protection outer pole 5 welded fastening that buffer spring 27 kept away from slider 25.

In order to facilitate the first guide rod 6 to play a good guiding role on the connecting block 9, a second guide hole is formed in the connecting block 9 and in a position corresponding to the first guide rod 6, a smooth through hole is formed in the connecting block 9 and in a position corresponding to the screw 16, and the cross sectional area of the smooth through hole is 1.1 times that of the screw 16.

When the device is used, the device is arranged at a corresponding position, gas in a pipeline enters the interior of the valve body 1 through the gas inlet valve port 2, at the moment, the sealing element 8 has a good sealing effect (the cylindrical sealing block 85 is stably arranged in the gas hole 11, the second annular sealing block 84 is stably clamped in the second annular sealing groove 83, the first annular sealing block 81 is stably clamped in the first annular sealing groove 82, the multi-stage sealing effect is good, if the gas flows out through the gas outlet valve port 10, only the switch of the cylinder 4 needs to be started, the valve rod 15 drives the connecting block 9 and further drives the sealing element 8 to ascend under the action of the connecting shaft 3, the sealing element 8 is separated from the sealing plate 12, in the process, the connecting block 9 moves along the first guide rod 6, the third annular sealing block 24 moves in the third annular sealing groove 23, the sliding block 25 moves along the second guide rod 26 in the sliding groove 28, the buffer spring 27 is compressed (the buffer spring 27 plays a role of buffering, and at the same time, under the action of the third annular sealing block 24, the protective outer rod 5 and the protective inner rod 22, the buffer spring 27 is effectively protected, and the corrosion of the buffer spring is prevented, and the service life of the buffer spring is influenced), the valve rod 15 moves up along the first placing hole 20 and the second placing hole 21 under the action of the connecting shaft 3, the guide plate 14 plays a role of stably supporting together with the sealing plate 12 under the action of the fixing base 7, so that the air pressure is balanced by the circulation of the air outlet valve port 10 and the air inlet valve port 2, after the device is used for a period of time, the screw cap 17 can be taken down along the screw rod 16, the sealing element 8 and the mounting block 19 are taken out (so that the mounting block 19 is separated from the clamping groove 18), and then the new sealing element 8 and the mounting block 19 are mounted, and can be reused, the work efficiency is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An angle type pneumatic control valve comprises a valve body (1), and is characterized in that: an air cylinder (4) is placed above the valve body (1), a connecting shaft (3) is arranged below the air cylinder (4), the connecting shaft (3) penetrates through the upper side wall of the valve body (1) and extends into the valve body (1), an air outlet valve port (10) is arranged in the valve body (1) close to the lower side, an air inlet valve port (2) is arranged in the valve body (1) close to the right side, a sealing plate (12) is fixed between the left side wall and the right side wall in the valve body (1), a guide plate (14) is arranged above the sealing plate (12), fixing seats (7) are symmetrically fixed on the left side and the right side above the sealing plate (12), the fixing seats (7) and the guide plate (14) are fixedly connected through fixing bolts (13), a valve rod (15) is arranged below the connecting shaft (3), and the valve rod (15) penetrates through the guide plate (14) and extends to the upper side of the sealing plate, a connecting block (9) is fixed below the valve rod (15), a clamping groove (18) is formed in the connecting block (9) close to the lower portion, an installation block (19) is arranged in the clamping groove (18), screw rods (16) are symmetrically fixed above the installation block (19) in a bilateral mode, the screw rods (16) penetrate through the connecting block (9) and extend to the upper portion of the connecting block (9), nuts (17) are meshed on the outer side of the screw rods (16) and located above the connecting block (9), sealing elements (8) are fixed below the installation block (19), air holes (11) are formed in the sealing plate (12) and corresponding to the sealing elements (8), first guide rods (6) are symmetrically fixed between the guide plate (14) and the sealing plate (12) and located on the side, close to each other, of the two fixing bolts (13), left and right, and the first guide rods (6) penetrate through the connecting block (9), the outer side of the valve rod (15) is provided with a protective outer rod (5) by the upper part, a first placing hole (20) is formed in the protective outer rod (5) and in the position corresponding to the valve rod (15), a protective inner rod (22) is arranged in the outer side of the valve rod (15) by the lower part and in the protective outer rod (5), a second placing hole (21) is formed in the protective inner rod (22) and in the position corresponding to the valve rod (15), sliders (25) are symmetrically fixed on the outer side of the protective inner rod (22) by the upper part in a bilateral mode, a sliding groove (28) is formed in the inner side wall of the protective outer rod (5) and in the position corresponding to the slider (25), a second guide rod (26) is fixed in the sliding groove (28), a buffer spring (27) is arranged on the outer side of the second guide rod (26), and a third annular sealing block (24) is fixed on one side, close to the protective inner rod (22), of the protective outer rod (5, and a third annular sealing groove (23) is formed in the position, close to the outer side and corresponding to the third annular sealing block (24), of the inner side wall of the protective inner rod (22).

2. An angular pneumatic control valve according to claim 1, wherein: sealing member (8) include first annular seal piece (81), first annular seal groove (82), second annular seal groove (83), second annular seal piece (84) and cylindricality seal piece (85), the outside of cylindricality seal piece (85) is provided with second annular seal piece (84), second annular seal groove (83) have been seted up to the inside of closing plate (12) and the position department that corresponds second annular seal piece (84), one side that sealed piece cylindricality seal piece (85) was kept away from in second annular seal piece (84) is provided with first annular seal piece (81), first annular seal groove (82) have been seted up to the inside of closing plate (12) and the position department that corresponds first annular seal piece (81).

3. An angular pneumatic control valve according to claim 2, wherein: the cylindrical sealing block (85), the second annular sealing block (84) and the first annular sealing block (81) are all made of rubber.

4. An angular pneumatic control valve according to claim 1, wherein: second guide bar (26) run through slider (25), first guiding hole has been seted up to the inside of slider (25) and the position department that corresponds second guide bar (26), buffer spring (27) are located the top of slider (25), one side and slider (25) welded fastening that buffer spring (27) are close to slider (25), one side and the outer pole (5) welded fastening of protection that slider (25) were kept away from in buffer spring (27).

5. An angular pneumatic control valve according to claim 1, wherein: the inner portion of the connecting block (9) and the position corresponding to the first guide rod (6) are provided with a second guide hole, the inner portion of the connecting block (9) and the position corresponding to the screw rod (16) are provided with a smooth through hole, and the cross sectional area of the smooth through hole is 1.1 times that of the screw rod (16).

6. An angular pneumatic control valve according to claim 1, wherein: the screw cap is characterized in that a threaded hole is formed in the nut (17) and corresponds to the position of the screw rod (16), an internal thread is arranged on the inner side wall of the threaded hole, an external thread is arranged on the outer side wall of the screw rod (16), and the internal thread and the external thread are meshed with each other.