Pressing type pump valve stable in effect

Abstract

The utility model discloses a pressing type pump valve stable in effect, and belongs to the field of pressing type pump valves, the pressing type pump valve comprises a valve body and a valve cover arranged on the top surface of the valve body, a fixing ring is fixedly connected in the valve cover, a linear bearing is fixedly connected in the fixing ring, a valve rod is movably inserted in the linear bearing in a penetrating mode, and the valve cover is fixedly connected with the valve rod. A lantern ring is fixedly connected to the outer portion of the valve rod, the arranged limiting mechanism is matched with the upper pressing type pump valve for use, the pressing force generated when the valve is opened can be adjusted and limited, the pressing force can be accurately controlled so as to meet the use requirements of different operators, the problem of small pressing force or excessive pressing is avoided, and the use safety of the pump valve is improved. By means of the structure, it is ensured that the pressing force and position are consistent every time, the opening degree of the valve can be kept consistent every time, meanwhile, workers do not need to conduct pressing operation for a long time, the stable pressing force is ensured, and then the stability of the flow or pressure when a medium passes through the valve is improved, and the using effect of the valve is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to press type pump valve valve door field, especially press type pump valve valve door of stable effect. BACKGROUND

[0002] Pump valve is the general term of pump and valve, it is a kind of industrial equipment, mainly used for the delivery and control system of liquid (sometimes also used for gas). Among them, pump is the mechanical energy conversion into fluid energy, used to pressurize the delivery liquid mechanical;And valve is the control component in fluid delivery system, has the functions such as cut-off, regulation, flow guide, prevent backflow, pressure stabilization, shunt or overflow pressure relief. Since pump and valve are often used in the same occasion, such as pump place generally has valve, and there is valve place also often needs pump, so they are often linked together. Pump valve product is widely used in petroleum, chemical industry, electric power, construction, environmental protection and many other fields, is an important component of mechanical manufacturing industry.

[0003] In prior art, press type pump valve valve door is a kind of valve device for manually controlling fluid, it is usually composed of valve body, valve cover, valve rod, valve block, blocking block, spring shaft part (movable shaft) etc. When user presses valve rod or pressing plate, valve rod drops and drives valve block to move, thereby opening valve and making fluid pass;After releasing press, spring shaft part (or spring) will make valve rod and valve block recover to initial position, close valve and prevent fluid flow.

[0004] However, the existing press type pump valve valve door in the process of actual use, since it needs to be opened by manual press control, and in the use of valve, it is more dependent on the proficiency of operator, and it is difficult for novice to master the appropriate pressing degree, resulting in the problems of small pressing degree or over-pressing, at the same time, long time operation will make operator fatigue, it is difficult to maintain stable pressing degree, thereby it will lead to the inconsistency of valve opening, further it will affect the stability of flow or pressure when medium passes through valve, and reduces the use effect of valve. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a press type pump valve valve door with stable effect, which can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a stable effect press type pump valve valve, including valve body and the valve cover of setting in the top surface of valve body, the inside fixed connection of valve cover has fixed ring, and the inside fixed connection of fixed ring has linear bearing, the inside movable insertion of linear bearing has valve rod, and the outside fixed connection of valve rod has the thimble, the fixed connection of thimble and fixed ring has first spring, the top and bottom of valve rod are fixedly connected with valve cap and valve plate respectively, and the lateral wall of valve plate is equipped with valve hole, the top of valve rod is equipped with limiting mechanism, and limiting mechanism includes connecting plate, second spring, positioning head, screw knob, movable block and limit block, the top of connecting plate is sleeved in the top of valve rod through the sleeve hole of left side, and connecting plate is also movably connected with the L-shaped guide rod on the outer wall of valve cover through the movable mouth of right side, the inside fixed connection of movable mouth one side inner wall has second spring, and the right end fixed connection of second spring has positioning head, movable block is movably connected in movable mouth through both sides sliding block, and screw knob is movably connected with movable block through the rotation block of left end, the left side wall of movable block is fixedly connected with limit block.

[0008] Preferably, the outer wall of the valve cover is fixedly installed with an L-shaped guide rod, and guide grooves are formed in the front and rear side walls of the vertical part of the L-shaped guide rod, respectively. A plurality of positioning grooves are formed in the left side wall of the vertical part of the L-shaped guide rod, and a limiting groove corresponding to the positioning grooves is also formed in the right side wall of the vertical part of the L-shaped guide rod.

[0009] Preferably, a sleeve hole is formed in the left side of the top surface of the connecting plate, and the connecting plate is fixedly installed on the outer wall of the top of the valve rod in a sleeved manner through the sleeve hole. A movable mouth is also formed in the right side of the top surface of the connecting plate, and the vertical part of the L-shaped guide rod is inserted into the movable mouth. Guide strips are fixedly installed on the inner front and rear walls of the movable mouth, respectively, and the guide strips are movably installed in the guide grooves.

[0010] Preferably, a recess is formed in the left side wall of the inside of the movable mouth, and a limiting ring is fixedly installed in the slot opening of the recess. A second spring is fixedly installed in the groove of the recess, and the right end of the second spring is fixedly installed with a positioning head. The positioning head passes through the limiting ring and is inserted into the positioning groove.

[0011] Preferably, a sliding groove is also formed in the right side of the guide strips on the inner front and rear walls of the movable mouth, respectively. A screw hole is formed in the right side wall of the inside of the movable mouth.

[0012] Preferably, the screw knob is threadedly connected with the screw hole, and a rotation block is fixedly installed on the inside end of the screw knob. Sliding blocks are fixedly installed on the front and rear walls of the movable block, respectively, and the sliding blocks are movably installed in the sliding grooves. A convex groove is formed in the right side wall of the movable block, and the rotation block is movably installed in the convex groove. A limit block is also fixedly installed on the left side wall of the movable block, and the limit block is inserted into the limiting groove.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the utility model, the limiting mechanism is arranged to cooperate with the use of the upper press type pump valve, the valve cap drives the connecting plate to move along the L-shaped guide rod when pressing the valve rod, the positioning head is continuously in the positioning groove at different positions under the elastic force of the second spring during the movement, thereby, the pressing force can be adjusted and positioned, and after the screw knob is rotated to push the movable block to make the limiting block inserted into the limiting groove, the current pressing force can be limited, so that the valve rod is prevented from moving upward to close the valve under the rebound force of the first spring, thereby, the pressing force when the valve is opened can be adjusted and limited, the pressing force can be accurately controlled, the use of different operators is met, the problems of small pressing force or excessive pressing are avoided, the pressing force and position are consistent each time, the valve opening degree can be kept consistent each time, meanwhile, the staff is not required to press for a long time, the stable pressing force is ensured, and the stability of the flow or pressure when the medium passes through the valve and the use effect of the valve are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the whole structure section view schematic diagram of the utility model;

[0017] Figure 3 It is the left view schematic diagram of the L-shaped guide rod of the utility model;

[0018] Figure 4 It is the right view schematic diagram of the L-shaped guide rod of the utility model;

[0019] Figure 5 It is the structure section view split schematic diagram of the limiting mechanism of the utility model.

[0020] In the drawing: 1, valve body;2, valve cover;3, fixed ring;4, linear bearing;5, valve rod;6, collar;7, first spring;8, valve plate;9, valve hole;10, valve cap;11, limiting mechanism;12, L-shaped guide rod;13, guide groove;14, positioning groove;15, limiting groove;16, connecting plate;17, sleeve hole;18, movable port;19, guide strip;20, recess;21, limiting ring;22, second spring;23, positioning head;24, screw hole;25, sliding groove;26, screw knob;27, rotating block;28, movable block;29, sliding block;30, convex groove;31, limiting block. DETAILED DESCRIPTION

[0021] In order to make the technical means, creation characteristics, achieve purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0022] As shown in Figure 1 - Figure 5 The utility model discloses a stable effect press type pump valve, including valve body 1 and the valve cover 2 of setting at the top surface of valve body 1, the inside fixed connection of valve cover 2 has fixed ring 3, and the inside fixed connection of fixed ring 3 has linear bearing 4, and the inside movable insertion of linear bearing 4 has valve stem 5, and the outside fixed connection of valve stem 5 has collar 6, and the fixed connection between collar 6 and fixed ring 3 has first spring 7, and the top end and bottom end of valve stem 5 are fixedly connected with valve cap 10 and valve plate 8 respectively, and the sidewall of valve plate 8 is provided with valve hole 9, and the top end of valve stem 5 is equipped with limiting mechanism 11, and limiting mechanism 11 includes connecting plate 16, second spring 22, positioning head 23, threaded knob 26, movable block 28 and limiting block 31, connecting plate 16 is sleeved on the top end of valve stem 5 through the sleeve hole 17 of top left side, and connecting plate 16 is also movably connected with the L-shaped guide rod 12 on the outer wall of valve cover 2 through the movable port 18 of top right side, the inside wall of movable port 18 is fixedly connected with second spring 22, and the right end of second spring 22 is fixedly connected with positioning head 23, movable block 28 is movably connected in movable port 18 through the sliding block 29 on both sides, and threaded knob 26 is movably connected with movable block 28 through the rotating block 27 on the left end, and limiting block 31 is fixedly connected on the left side wall of movable block 28.

[0023] As shown in Figure 3 and Figure 4 The outer wall of valve cover 2 is fixedly provided with an L-shaped guide rod 12, and the vertical part of the L-shaped guide rod 12 is provided with a guide groove 13 on the front and rear side walls, the guide groove 13 is used for cooperating with the guide strip 19 to realize the guide sliding groove, a plurality of positioning grooves 14 are formed on the left side wall of the vertical part of the L-shaped guide rod 12, the positioning grooves 14 are used for cooperating with the positioning head 23 to press and position the valve, and a limiting groove 15 corresponding to the positioning groove 14 is also formed on the right side wall of the vertical part of the L-shaped guide rod 12, the limiting groove 15 is used for cooperating with the limiting block 31 to press and limit the valve.

[0024] As shown in Figure 5 The top left side of the connecting plate 16 is provided with a sleeve hole 17, and the connecting plate 16 is fixedly installed on the outer wall top end of the valve stem 5 in a sleeved manner through the sleeve hole 17, the top right side of the connecting plate 16 is also provided with a movable port 18, and the vertical part of the L-shaped guide rod 12 is installed in the movable port 18, the inside front and rear walls of the movable port 18 are fixedly installed with guide strips 19, and the guide strips 19 are movably installed in the guide groove 13, when the valve stem 5 is pressed by the valve cap 10, the connecting plate 16 will move along the vertical part of the L-shaped guide rod 12 through the movable port 18, and the guide strips 19 slide in the guide groove 13.

[0025] As Figure 5 shown, the inner left wall of the movable port 18 is provided with a groove 20, and the groove 20 is fixedly installed with a limiting ring 21, the groove 20 is fixedly installed with a second spring 22, and the right end of the second spring 22 is fixedly installed with a positioning head 23, the positioning head 23 passes through the limiting ring 21 and is inserted into the positioning groove 14, when the connecting plate 16 moves, the second spring 22 in the groove 20 will be forced to contract and stretch, to push the positioning head 23 through the limiting ring 21 into the positioning groove 14 at the designated position, which can ensure the consistent position of each pressing, and plays the function of pressing and positioning;

[0026] As Figure 5 shown, the inner front and rear walls of the movable port 18 are respectively provided with a sliding groove 25 on the right side of the guide bar 19, the sliding groove 25 is used to cooperate with the sliding block 29 to realize sliding operation, and the inner right wall of the movable port 18 is provided with a screw hole 24, the screw hole 24 is used to cooperate with the threaded knob 26 to realize threaded rotation;

[0027] As Figure 5 shown, the threaded knob 26 is threadedly connected with the screw hole 24, and the inner side of the threaded knob 26 is fixedly installed with a rotating block 27, the front and rear walls of the movable block 28 are respectively fixedly installed with a sliding block 29, and the sliding block 29 is movably installed in the sliding groove 25, the right wall of the movable block 28 is provided with a convex groove 30, and the rotating block 27 is movably installed in the convex groove 30, the left wall of the movable block 28 is further fixedly installed with a limiting block 31, and the limiting block 31 is inserted and installed in the limiting groove 15, after the pressing position is determined, the threaded knob 26 can be rotated to push the movable block 28 through the rotating block 27, so that the limiting block 31 enters the corresponding limiting groove 15, which can limit the pressing force and ensure the stability of the pressing force.

[0028] The specific use principle of the limiting mechanism 11 cooperating with the pressing type pump valve is as follows:

[0029] When the operator opens the valve, the operator manually presses the valve cap 10 downward, the valve cap 10 will push the valve rod 5 to move vertically downward along the linear bearing 4 installed in the fixed ring 3, when the valve rod 5 moves, the valve rod 5 will force the first spring 7 to stretch downward through the sleeve ring 6, and the valve rod 5 will push the bottom valve plate 8 to move downward, and in the process of moving, the valve hole 9 opened on the side wall of the valve plate 8 will gradually coincide with the passage of the valve body 1, so that the conveying medium can pass through the valve hole 9 for conveying, and in the process, as the valve rod 5 moves downward, the connecting plate 16 will move downward along the vertical part of the L-shaped guide rod 12 installed on the outer wall of the valve cover 2 through the movable port 18 driven by the valve rod 5, and in the process of moving, the guide strip 19 on the inner wall of the movable port 18 will slide in the guide groove 13 opened on the vertical part of the L-shaped guide rod 12, at the same time, the positioning head 23 protruding on the left inner wall of the movable port 18 will move into the recess 20 through the limiting ring 21 in the process of being pressed by the L-shaped guide rod 12, and force the second spring 22 in the recess 20 to contract, and in the process of continuous movement, after the positioning head 23 loses the pressing force of the L-shaped guide rod 12, the second spring 22 will restore to stretch, and the positioning head 23 will pass through the limiting ring 21 into the corresponding positioning groove 14 opened on the left side wall of the vertical part of the L-shaped guide rod 12, until the connecting plate 16 moves to the appropriate position, the pressing force of the valve rod 5 can be positioned, and in this way, the downward position of the valve rod 5 can be ensured to be consistent every time, and after the positioning of the pressing position is completed, in order to prevent the valve rod 5 from being pulled upward by the reverse force of the first spring 7 and being pressed too much after being accidentally touched, at this time, the threaded knob 26 on the right side of the connecting plate 16 can be rotated, the threaded knob 26 will be screwed and moved in the threaded hole 24, and the threaded knob 26 will drive the rotating block 27 on the left end to rotate in the convex groove 30 opened on the right side wall of the movable block 28, and the rotating block 27 will move the movable block 28 in the movable port 18 to the left side, the sliding blocks 29 on the front and rear walls of the movable block 28 will slide in the sliding groove 25, until the limiting block 31 installed on the left side wall of the movable block 28 is inserted into the limiting groove 15 opened on the right side wall of the vertical part of the L-shaped guide rod 12 corresponding to the positioning groove 14 at this time, in this way, the pressing force of the valve rod 5 can be limited, preventing the valve rod 5 from moving downward or upward, ensuring the stability of the pressing force of the valve rod 5, so that the pressing force of the valve rod 5 can be adjusted and limited, and the pressing force can be accurately controlled to meet the use of different operators, avoiding the problem of too little or too much pressing force, ensuring the consistency of the pressing force and position every time, so that the opening degree of the valve can be consistent every time, at the same time, the staff does not need to press for a long time, ensuring the stable pressing force, thereby improving the stability of the flow or pressure of the medium passing through the valve and the use effect of the valve, finally,The pressing position and force of the valve rod 5 are controlled by the limiting mechanism 11, so that the valve hole 9 on the side wall of the valve plate 8 is not coincident with the valve passage to accurately control the flow or pressure of the conveying medium.

[0030] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Although the present application is described in detail with reference to the foregoing embodiment, various improvements can be made to the present application without departing from the scope of the present application, and equivalent substitutions can be made to the components of the present application, or equivalent substitutions can be made to part of the technical features. Any within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A stable push-type pump valve, comprising a valve body (1) and a valve cover (2) disposed on the top surface of the valve body (1), wherein a fixing ring (3) is fixedly connected inside the valve cover (2), and a linear bearing (4) is fixedly connected inside the fixing ring (3), a valve stem (5) is movably inserted inside the linear bearing (4), and a collar (6) is fixedly connected outside the valve stem (5), a first spring (7) is fixedly connected between the collar (6) and the fixing ring (3), a valve cap (10) and a valve plate (8) are fixedly connected to the top and bottom ends of the valve stem (5) respectively, and a valve hole (9) is provided on the side wall of the valve plate (8), characterized in that: The valve stem (5) is provided with a limiting mechanism (11) at the top end. The limiting mechanism (11) includes a connecting plate (16), a second spring (22), a positioning head (23), a threaded knob (26), a movable block (28), and a limiting block (31). The connecting plate (16) is fitted onto the top end of the valve stem (5) through a sleeve hole (17) on the left side of the top surface. The connecting plate (16) is also movably connected to the L-shaped guide rod (12) on the outer wall of the valve cover (2) through a movable opening (18) on the right side of the top surface. The second spring (22) is fixedly connected to the inner wall of one side of the movable opening (18). The positioning head (23) is fixedly connected to the right end of the second spring (22). The movable block (28) is movably connected to the movable opening (18) through sliders (29) on both sides. The threaded knob (26) is movably connected to the movable block (28) through a rotating block (27) on the left end. The limiting block (31) is fixedly connected to the left side wall of the movable block (28).

2. The push-button pump valve with stable performance according to claim 1, characterized in that: An L-shaped guide rod (12) is fixedly installed on the outer wall of the valve cover (2), and guide grooves (13) are respectively opened on the front and rear side walls of the vertical part of the L-shaped guide rod (12). Several positioning grooves (14) are opened on the left side wall of the vertical part of the L-shaped guide rod (12), and a limiting groove (15) corresponding to the positioning grooves (14) is also opened on the right side wall of the vertical part of the L-shaped guide rod (12).

3. The push-button pump valve with stable performance according to claim 2, characterized in that: The top left side of the connecting plate (16) is provided with a sleeve hole (17), and the connecting plate (16) is fixedly installed on the top of the outer wall of the valve stem (5) through the sleeve hole (17) in a fitted manner. The top right side of the connecting plate (16) is also provided with a movable opening (18), and the vertical part of the L-shaped guide rod (12) is inserted into the movable opening (18). The front and rear walls of the movable opening (18) are respectively fixedly installed with guide strips (19), and the guide strips (19) are movably installed in the guide groove (13).

4. The push-button pump valve with stable performance according to claim 3, characterized in that: A groove (20) is provided on the inner left side wall of the movable opening (18), and a limiting ring (21) is fixedly installed in the groove (20). A second spring (22) is fixedly installed in the groove (20), and a positioning head (23) is fixedly installed at the right end of the second spring (22). The positioning head (23) passes through the limiting ring (21) and is inserted into the positioning groove (14).

5. The push-button pump valve with stable performance according to claim 4, characterized in that: Slide grooves (25) are respectively provided on the front and rear walls of the inner side of the movable opening (18) and on the right side of the guide bar (19), and screw holes (24) are provided on the right side wall of the inner side of the movable opening (18).

6. The press-type pump valve with stable performance according to claim 5, characterized in that: The threaded knob (26) is threadedly connected to the threaded hole (24), and a rotating block (27) is fixedly installed on the inner end of the threaded knob (26). A slider (29) is fixedly installed on the front and rear walls of the movable block (28), and the slider (29) is movably installed in the slide groove (25). A protrusion (30) is opened on the right side wall of the movable block (28), and the rotating block (27) is movably installed in the protrusion (30). A limit block (31) is also fixedly installed on the left side wall of the movable block (28), and the limit block (31) is inserted into the limit groove (15).

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