Push type vacuum valve

Abstract

The utility model discloses a push type vacuum valve which comprises a valve body, a first communicating pipe is arranged on the outer wall of the valve body, a second communicating pipe is arranged at the bottom end of the valve body, a valve cover is arranged at the top end of the valve body, an air cylinder is arranged at the top end of the valve cover, and the movable end of the air cylinder penetrates through the valve cover, extends into the valve body and is fixedly connected with a first U-shaped fixing frame. A first piston matched with the valve body is arranged at the bottom end of the first U-shaped fixing frame, the first piston is connected with the first U-shaped fixing frame through a limiting assembly, and a second piston is arranged at the bottom end of the first piston. The device has the beneficial effects that by arranging the limiting assembly, the first piston and the movable end of the air cylinder are more efficient and convenient to disassemble and assemble, follow-up replacement is facilitated, meanwhile, the limiting assembly conducts plug pin fixing on the first piston through multiple sets of limiting rods, and fixing is firmer; and a linkage storage assembly in the limiting assembly can be used for storing a plurality of groups of bolts at the same time so as to release the limiting of the piston I, and the operation is simple and time-saving.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely relates to a push type vacuum valve. BACKGROUND

[0002] Vacuum valve belongs to one kind of valve, is the vacuum valve of standard atmospheric pressure lower than working pressure, is divided into vacuum stop valve, vacuum diaphragm valve, vacuum electromagnetic valve, vacuum safety valve, vacuum baffle valve, vacuum gate valve, vacuum air charging valve and many other types because of its function and structure difference, vacuum valve is a device installed in the fluid pipe of vacuum system, is also an important component of vacuum system, vacuum valve is usually used to isolate vacuum area, is used to control the fluid amount of going in and going out more, vacuum valve can be operated manually, pneumatically, electronically, electrically or electromagnetically.

[0003] Vacuum valve uses its internal piston to rub with the valve body inner wall, the piston will be damaged and need to be replaced after a long time, the existing vacuum valve piston dismounting and replacing is more cumbersome, which affects the dismounting and replacing efficiency.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] For the problems in the related art, the utility model provides a push type vacuum valve to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A push type vacuum valve, including valve body, the valve body outer wall is equipped with the communicating pipe no.

[0008] As preferred, the valve cover is connected with the valve body through bolts, and a sealing gasket is arranged between the valve cover and the valve body.

[0009] As preferred, the two groups of support plates are both arranged obliquely, the limiting assembly comprises a connecting block fixedly arranged at the bottom end of the U-shaped fixing frame, a connecting groove matched with the connecting block is arranged at the top end of the piston, a plurality of limiting rods are evenly distributed on the outer wall of the connecting block, the limiting rods are connected with the connecting block through a linkage storage assembly, and a limiting groove matched with the limiting rods is arranged on the piston.

[0010] As preferred, the linkage storage assembly comprises two U-shaped fixing frames arranged on the inner wall of the connecting block, one end of the limiting rod extends into the connecting block and penetrates the two U-shaped fixing frames, a pressing piece is arranged in the two U-shaped fixing frames and located on the outer wall of the limiting rod, a spring is arranged on one side of the pressing piece and located on the outer wall of the limiting rod, a winding roller is arranged in the connecting block and located in the two U-shaped fixing frames, and the limiting rod is connected with the winding roller through a connecting rope.

[0011] As preferred, the connecting block and the two U-shaped fixing frames are provided with guiding sliding holes matched with the limiting rod, and the pressing piece is connected with the two U-shaped fixing frames through the spring.

[0012] As preferred, the shaft end of the winding roller extends out of the connecting block and is connected with a rotating wheel.

[0013] The piston one is more efficiently and conveniently disassembled and assembled with the movable end of the cylinder through the limiting assembly, the piston one is conveniently replaced, the piston one is fixed by the multiple limiting rods of the limiting assembly, the fixing is more reliable, the linkage storage assembly in the limiting assembly can simultaneously store multiple pins to release the limiting of the piston one, and the operation is simple and time-saving. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0015] Figure 1 is a whole structure schematic view of a push type vacuum valve according to an embodiment of the present application;

[0016] Figure 2 is a sectional view of a push type vacuum valve according to an embodiment of the present application;

[0017] Figure 3 is a connecting structure schematic view of a piston one and a connecting block in a push type vacuum valve according to an embodiment of the present application;

[0018] Figure 4 is a structure schematic view of a connecting block in a push type vacuum valve according to an embodiment of the present application;

[0019] Figure 5 is a sectional view of a connecting block in a push type vacuum valve according to an embodiment of the present application;

[0020] Figure 6 is Figure 5 a local enlarged view at A in Fig.

[0021] Figure 7 is a structure schematic view of a piston one in a push type vacuum valve according to an embodiment of the present application.

[0022] in the figure:

[0023] 1, valve body; 2, communication pipe one; 3, communication pipe two; 4, valve cover; 5, air cylinder; 6, U-shaped fixed frame one; 7, piston one; 8, piston two; 9, bolt; 10, connecting block; 11, connecting groove; 12, limiting rod; 13, limiting groove; 14, U-shaped fixed frame two; 15, pressing piece; 16, spring; 17, winding roller; 18, connecting rope; 19, rotating wheel. DETAILED DESCRIPTION

[0024] To further illustrate the embodiments, the present application provides drawings, which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. With reference to these contents, those skilled in the art should be able to understand other possible embodiments and advantages of the present application. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to the embodiments of the present application, a push type vacuum valve is provided.

[0026] Embodiment one;

[0027] As Figures 1-7 shown, according to the push type vacuum valve of the present application, it comprises a valve body 1, the outer wall of the valve body 1 is provided with a communication pipe one 2, the bottom end of the valve body 1 is provided with a communication pipe two 3, the top end of the valve body 1 is provided with a valve cover 4, the top end of the valve cover 4 is provided with an air cylinder 5, the movable end of the air cylinder 5 penetrates through the valve cover 4 and extends into the valve body 1 and is fixedly connected with a U-shaped fixed frame one 6, the bottom end of the U-shaped fixed frame one 6 is provided with a piston one 7 matched with the valve body 1, the piston one 7 is connected with the U-shaped fixed frame one 6 through a limiting assembly, the bottom end of the piston one 7 is provided with a piston two 8, and the inner bottom end of the valve body 1 is provided with a sealing groove matched with the piston two 8.

[0028] Embodiment two;

[0029] As Figures 1-7As shown, including valve body 1, the valve body 1 outer wall is provided with the communication pipe one 2, the valve body 1 bottom end is provided with the communication pipe two 3, the valve body 1 top end is provided with valve cover 4, the valve cover 4 top end is provided with cylinder 5, the cylinder 5 movable end penetrates the valve cover 4 and extends into the valve body 1 and is fixedly connected with U-shaped fixed frame one 6, the U-shaped fixed frame one 6 bottom end is provided with piston one 7 matched with the valve body 1, the piston one 7 is connected with the U-shaped fixed frame one 6 through the limiting assembly, the piston one 7 bottom end is provided with piston two 8, the valve body 1 inner bottom end is provided with sealing groove matched with the piston two 8. The valve cover 4 is connected with the valve body 1 through bolt 9, and sealing pad is arranged between the valve cover 4 and the valve body 1. Two groups of the support plates are inclined, the limiting assembly comprises a connecting block 10 fixedly arranged at the bottom end of the U-shaped fixed frame one 6, the piston one 7 top end is provided with connecting groove 11 matched with the connecting block 10, the connecting block 10 outer wall is provided with a plurality of evenly distributed limiting rods 12, the limiting rods 12 are connected with the connecting block 10 through the linkage storage assembly, and the piston one 7 is provided with limiting groove 13 matched with the limiting rods 12. The linkage storage assembly comprises a plurality of evenly distributed U-shaped fixed frame two 14 arranged on the inner wall of the connecting block 10, one end of the limiting rod 12 extends into the connecting block 10 and penetrates the U-shaped fixed frame two 14, the U-shaped fixed frame two 14 and located outside the limiting rod 12 is fixedly sleeved with pressing piece 15, one side of the pressing piece 15 and located outside the limiting rod 12 is sleeved with spring 16, the connecting block 10 and located in a plurality of evenly distributed U-shaped fixed frame two 14 is provided with winding roller 17, the limiting rod 12 is connected with the winding roller 17 through connecting rope 18. The connecting block 10 and the U-shaped fixed frame two 14 are provided with guiding sliding hole matched with the limiting rod 12, and the pressing piece 15 is connected with the U-shaped fixed frame two 14 through the spring 16. The shaft end of the winding roller 17 extends out of the connecting block 10 and is connected with rotating wheel 19.

[0030] In actual application, when the piston inside the valve body 1 needs to be replaced due to damage, first, the valve cover 4 is opened, then the movable end of the cylinder 5 is moved out of the valve body, the winding roller 17 is rotated by rotating the rotating wheel 19, the winding roller 17 winds the connecting ropes 18, the connecting ropes 18 start to pull the limiting rods 12 to move, so that the limiting rods 12 are separated from the limiting grooves 13 on the piston 7, at this time the spring 16 is in a compressed state, then the connecting block 10 is pulled out of the connecting groove 11 on the piston 7, then the connecting block 10 is inserted into the connecting groove 11 on the new piston 7, the rotating wheel 19 is loosened, the spring 16 is reset to drive the limiting rods 12 to move outside the connecting block 10 until the limiting rods 12 are inserted into the limiting grooves 13 on the new piston 7, the limiting assembly is arranged to make the piston and the movable end of the cylinder more efficient and convenient to disassemble and assemble, and convenient for subsequent replacement, and the limiting assembly can fix the piston by the multiple limiting rods, so that the piston is fixed more firmly, the linkage storage assembly in the limiting assembly can store multiple pins at the same time to release the limiting of the piston, and the operation is simple and time-saving.

[0031] In summary, by means of the above technical scheme of the utility model, the piston and the movable end of the cylinder are more efficient and convenient to disassemble and assemble by arranging the limiting assembly, convenient for subsequent replacement, and the limiting assembly can fix the piston by multiple limiting rods, so that the piston is fixed more firmly, the linkage storage assembly in the limiting assembly can store multiple pins at the same time to release the limiting of the piston, and the operation is simple and time-saving.

[0032] The above only describes preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A push-type vacuum valve, characterized by The utility model provides a valve, including valve body (1), the outer wall of valve body (1) is equipped with communicating pipe one (2), the bottom of valve body (1) is equipped with communicating pipe two (3), the top of valve body (1) is equipped with valve cover (4), the top of valve cover (4) is equipped with cylinder (5), cylinder (5) movable end penetrates valve cover (4) and extends into valve body (1) with U type fixed frame one (6) fixedly connected, the bottom of U type fixed frame one (6) is equipped with piston one (7) with valve body (1) is matched, piston one (7) is connected with U type fixed frame one (6) through the limiting component, the bottom of piston one (7) is equipped with piston two (8), and the inner bottom of valve body (1) is equipped with sealing groove with piston two (8) is matched.

2. A push vacuum valve according to claim 1, characterized in that The valve cover (4) is connected with the valve body (1) through the bolt (9), and the valve cover (4) and the valve body (1) are provided with sealing pads.

3. A push vacuum valve according to claim 1, characterized in that The limiting component includes the connecting block (10) fixedly arranged at the bottom of the U-shaped fixed frame (6), the connecting groove (11) matched with the connecting block (10) is formed in the top of the piston (7), and the connecting block (10) is provided with a plurality of uniformly distributed limiting rods (12) on the outer wall.

4. A push vacuum valve according to claim 3, wherein The linkage storage assembly includes a plurality of uniformly distributed U-shaped fixed frames (14) arranged on the inner wall of the connecting block (10), one end of the limiting rod (12) extends into the connecting block (10) and penetrates the U-shaped fixed frame (14), the U-shaped fixed frame (14) is fixedly sleeved with a pressing piece (15) on the outer wall of the limiting rod (12), the spring (16) is sleeved on one side of the pressing piece (15) and located on the outer wall of the limiting rod (12), the connecting block (10) is provided with a winding roller (17) in the plurality of uniformly distributed U-shaped fixed frames (14).

5. A push vacuum valve according to claim 4, wherein The connecting block (10) and the U-shaped fixed frame (14) are provided with a guide sliding hole matched with the limiting rod (12), and the pressing piece (15) is connected with the U-shaped fixed frame (14) through the spring (16).

6. A push vacuum valve according to claim 4, wherein The shaft end of the winding roller (17) extends to the outside of the connecting block (10) and is connected with a runner (19).

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