High-precision pneumatic double-fluid adjustable metering pump

Abstract

The utility model discloses a high-precision pneumatic double-fluid adjustable metering pump. A stroke adjusting cap (2) is connected with a stroke adjusting positioning piece (3); the stroke adjusting and positioning piece (3) is connected with the stroke adjusting and fixing main body (6); the stroke adjusting and positioning piece (3) forms limiting, the forward moving distance of the stroke adjusting and supporting rod (1) is limited, and the stroke adjusting and supporting rod (1) abuts against the fluid injection ejector rod (13) to inject oil forwards; the stroke adjusting and fixing main body (6) is connected with the pump body main body (9); the stroke adjusting support rod (1) is connected with the Y-shaped ring mounting piece (11); the tail fixing main body (18) is connected with the pump body main body (9); the pressure pipe linking piece (20) is connected with the tail fixing main body (18); the pneumatic quick connector (21) is connected with the pressure pipe connecting piece (20); liquid is output from an oil pipe of the oil outlet pipe (23); and pneumatic force is output from an air pipe of the air outlet pipe (24), so that a double-fluid spraying effect is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to adjustable metering pump especially high-precision pneumatic double fluid adjustable metering pump. BACKGROUND

[0002] Metering pump is also called quantitative pump or proportional pump. Metering pump is a kind of special volume pump that can meet the needs of various strict process flow, and the flow can be steplessly regulated in the range of 0-100%, and is used to transport liquid (especially corrosive liquid). Metering pump is a kind of fluid conveying machinery, and its outstanding feature is that constant flow can be kept regardless of discharge pressure. Using metering pump can simultaneously complete the functions of conveying, metering and regulating, thereby simplifying production process flow. Using multiple metering pumps, several media can be input into process flow for mixing according to accurate proportion. Due to its own outstanding, metering pump has been widely applied in petroleum chemical industry, pharmacy, food and other industrial fields.

[0003] However, the existing metering pump still has the following problems when in use:

[0004] 1. The traditional metering pump generally has the defect that the effect cannot be adjusted, which leads to low practicality of the device. Therefore, it is necessary to design a metering pump that can be adjusted.

[0005] 2. The existing metering pump also has the disadvantage of low precision, which is not conducive to the accurate use of the metering pump. Therefore, it is necessary to design a high-precision metering pump.

[0006] 3. The existing metering pumps on the market often have the defect that only single fluid can be used, which leads to poor use effect of the device. Therefore, it is necessary to design a pneumatic double fluid metering pump.

[0007] In summary, in order to solve the problems existing in the prior art, the utility model provides a high-precision pneumatic double fluid adjustable metering pump. Utility model content

[0008] In order to solve the problems existing in the prior art, the utility model provides a high-precision pneumatic double fluid adjustable metering pump.

[0009] The technical scheme adopted by the utility model to solve its technical problems is:

[0010] The utility model discloses a high-precision pneumatic double fluid adjustable metering pump, including stroke adjustment support rod 1, stroke adjustment cap 2, stroke adjustment positioner 3, stroke position steel ball 4, steel ball position sealing ring 5, stroke adjustment fixed main part 6, first sealing ring 7, second sealing ring 8, pump body main part 9, Y type ring 10, Y type ring mounting piece 11, spring support 12, fluid injection top rod 13, spring 14, spring support 15, sealing pad 16, sealing pad support 17, tail fixed main part 18, third sealing ring 19, pressure pipe link 20, pneumatic quick connector 21, fourth sealing ring 22, oil outlet pipe 23, gas outlet pipe 24, gas exchange port 25, oil inlet 26, wherein: stroke adjustment cap 2 and stroke adjustment positioner 3 are connected through the thread and are locked into integral structure, stroke adjustment positioner 3 and stroke adjustment fixed main part 6 are connected through the thread, and the integral structure of stroke adjustment cap 2 and stroke adjustment positioner 3 can be made as a whole to go forward or back by rotating stroke adjustment cap 2, stroke adjustment positioner 3 forms the limit and limits the distance that stroke adjustment support rod 1 moves forward, and stroke adjustment support rod 1 pushes fluid injection top rod 13 to inject oil forward, stroke adjustment fixed main part 6 and pump body main part 9 are connected through the thread and are locked into integral structure, stroke adjustment support rod 1 and Y type ring mounting piece 11 are connected through the thread and are locked into integral structure, tail fixed main part 18 and pump body main part 9 are fixed through bolt connection, pressure pipe link 20 and tail fixed main part 18 are connected through the thread and are locked into integral structure, pneumatic quick connector 21 and pressure pipe link 20 are connected through the thread and are locked into integral structure, liquid is exported from the oil pipe in oil outlet pipe 23, pneumatic is exported from the gas pipe in gas outlet pipe 24, and finally liquid and gas are mixed and sprayed at another nozzle, thereby realizing double fluid spraying effect.

[0011] The utility model also has the following additional technical features:

[0012] As the utility model technical scheme is further specifically optimized: the left end of stroke adjustment fixed main part 6 is provided with Y type ring mounting piece 11, Y type ring mounting piece 11 is provided with Y type ring 10 outside, fluid injection top rod 13 is provided with spring support 12 on the right side and is provided with spring support 15 on the left side, and spring 14 is installed between spring support 12 and spring support 15 outside fluid injection top rod 13.

[0013] As the utility model technical scheme is further specifically optimized: the left side of fluid injection top rod 13 is provided with sealing pad 16, and sealing pad support 17 is installed on the left side of sealing pad 16.

[0014] As the utility model technical scheme is further specifically optimized: the inside of tail fixed main part 18 is provided with third sealing ring 19, and fourth sealing ring 22 is installed on the inside of the left end of tail fixed main part 18.

[0015] As the further specific optimization of the technical scheme of the utility model, the main body of the pump body 9 is provided with the air exchange port 25 and the oil inlet 26.

[0016] Compared with the prior art, the utility model has the advantages of:

[0017] The previous product needs a base, needs to have a pump body mounting base, and then fixes the pump body on the base. The utility model removes the mounting base and directly changes the connection between the pump bodies, can stack multiple pump bodies for use, and reduces the accessory cost. At the same time, due to the reduction in the number of accessories, the assembly time is faster, and the assembly time is reduced. Furthermore, due to the reduction in the number of accessories, the failure rate is lower, and the threaded connection is more stable than the previous threaded side fixed connection.

[0018] The previous pump body can only output liquid, and the utility model can realize the simultaneous input of liquid and gas, and the gas is input from the tail fixed main body and output in the outlet pipe line. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a sectional view structure schematic diagram of the utility model;

[0020] Figure 2 It is an external structure schematic diagram of the utility model.

[0021] Mark explanation: 1, stroke adjusting support rod; 2, stroke adjusting cap; 3, stroke adjusting positioner; 4, stroke positioning steel ball; 5, steel ball positioning sealing ring; 6, stroke adjusting fixed main body; 7, sealing ring; 8, sealing ring; 9, pump body main body; 10, Y type ring; 11, Y type ring mounting piece; 12, spring support piece; 13, fluid injection ejector rod; 14, spring; 15, spring support piece; 16, sealing gasket; 17, sealing gasket support piece; 18, tail fixed main body; 19, sealing ring; 20, pressure pipe link piece; 21, pneumatic quick plug connector; 22, sealing ring; 23, oil outlet pipe; 24, air outlet pipe; 25, air exchange port; 26, oil inlet. DETAILED DESCRIPTION

[0022] The exemplary embodiments disclosed by the utility model will be described in more detail below with reference to the drawings.

[0023] Embodiment 1

[0024] The application discloses a high-precision pneumatic double-fluid adjustable metering pump, which comprises a stroke adjusting support rod 1, a stroke adjusting cap 2, a stroke adjusting positioning piece 3, a stroke positioning steel ball 4, a steel ball positioning sealing ring 5, a stroke adjusting fixed body 6, a first sealing ring 7, a second sealing ring 8, a pump body 9, a Y-shaped ring 10, a Y-shaped ring mounting piece 11, a spring support piece 12, a fluid injection top rod 13, a spring 14, a spring support piece 15, a sealing gasket 16, a sealing gasket support piece 17, a tail fixed body 18, a third sealing ring 19, a pressure pipe connecting piece 20, a pneumatic quick plug 21, a fourth sealing ring 22, an oil outlet pipe 23, an air outlet pipe 24, an air exchange port 25 and an oil inlet port 26, wherein the stroke adjusting cap 2 and the stroke adjusting positioning piece 3 are connected through threads and locked into an integrated structure; the stroke adjusting positioning piece 3 and the stroke adjusting fixed body 6 are connected through threads; the rotation of the stroke adjusting cap 2 can make the integrated structure of the stroke adjusting cap 2 and the stroke adjusting positioning piece 3 move forward or back; the stroke adjusting positioning piece 3 forms a limit to limit the distance of forward movement of the stroke adjusting support rod 1, and the stroke adjusting support rod 1 pushes the fluid injection top rod 13 to inject oil forward; the stroke adjusting fixed body 6 and the pump body 9 are connected through threads and locked into an integrated structure; the stroke adjusting support rod 1 and the Y-shaped ring mounting piece 11 are connected through threads and locked into an integrated structure; the tail fixed body 18 and the pump body 9 are fixed through bolts; the pressure pipe connecting piece 20 and the tail fixed body 18 are connected through threads and locked into an integrated structure; the pneumatic quick plug 21 and the pressure pipe connecting piece 20 are connected through threads and locked into an integrated structure; liquid is output from the oil pipe of the oil outlet pipe 23; pneumatic is output from the air pipe of the air outlet pipe 24; finally, the liquid and the pneumatic are mixed and sprayed at another nozzle, so that the double-fluid spraying effect is realized.

[0025] The left end of the stroke adjusting fixed body 6 is provided with the Y-shaped ring mounting piece 11, the Y-shaped ring mounting piece 11 is externally sleeved with the Y-shaped ring 10; the right side of the fluid injection top rod 13 is clampingly provided with the spring support piece 12, and the left side of the fluid injection top rod 13 is clampingly provided with the spring support piece 15; the outside of the fluid injection top rod 13 is sleeved with the spring 14, and the spring 14 is arranged between the spring support piece 12 and the spring support piece 15.

[0026] The left side of the fluid injection top rod 13 is provided with the sealing gasket 16, and the left side of the sealing gasket 16 is provided with the sealing gasket support piece 17.

[0027] The inside of the tail fixed body 18 is provided with the third sealing ring 19, and the left end inside of the tail fixed body 18 is provided with the fourth sealing ring 22.

[0028] The main body of the pump body 9 is provided with the air exchange port 25 and the oil inlet port 26.

[0029] Embodiment 2

[0030] The liquid inflow principle of the high-precision pneumatic double-fluid adjustable metering pump:

[0031] The air inlet hole between the pump body 9 and the stroke adjustment fixed body 6 drives the pump body 9 and the stroke adjustment support rod 1 through the air inlet pressure, and the stroke adjustment support rod 1 drives the liquid injection piston rod to drive forward, so that the liquid entering from the oil inlet 26 enters the outlet 23 at the sealing gasket 16, and after the cycle is completed, the spring 28 compresses the sealing gasket to prevent liquid outflow and backflow, and at the same time, the spring 14 resets the pump body 9 and the stroke adjustment support rod 1, waiting for the next action.

[0032] The adjustment principle of the high-precision pneumatic double-fluid adjustable metering pump:

[0033] The stroke adjustment positioning piece 3 and the stroke adjustment cap 2 are fixed in threaded connection, the middle part of the stroke adjustment positioning piece 3 has a plurality of equal division key grooves, the front part of the stroke adjustment positioning piece 3 and the inside of the stroke adjustment fixed body 6 are connected in threaded connection, the middle part of the stroke adjustment fixed body 6 is provided with the ball 4 and the sealing ring 5, the sealing ring 5 plays the resistance adjustment effect of the threaded air 3 and the stroke adjustment fixed body 6, and the ball 4 is in the equal division key groove of the stroke adjustment positioning piece 3, when adjusting, the ball in each key groove is equivalent to a scale, and the forward and backward rotation of the stroke adjustment positioning piece 3 and the stroke adjustment fixed body 6 through the threaded connection is used to limit the stroke length of the top rod 1, so that the amount of liquid output is realized.

[0034] The above detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model.

Claims

1. A high precision pneumatic two-fluid adjustable metering pump characterized by: The utility model provides a kind of fluid injection pump, including travel adjustment support rod (1), travel adjustment cap (2), travel adjustment positioner (3), travel adjustment steel ball (4), steel ball position sealing ring (5), travel adjustment fixed body (6), first sealing ring (7), second sealing ring (8), pump body (9), Y ring (10), Y ring mounting piece (11), spring support (12), fluid injection ejector rod (13), spring (14), spring support (15), sealing pad (16), sealing pad support (17), tail fixed body (18), third sealing ring (19), pressure pipe connecting piece (20), pneumatic quick connector (21), fourth sealing ring (22), oil outlet pipe (23), air outlet pipe (24), air exchange port (25), oil inlet (26);Wherein: travel adjustment cap (2) and travel adjustment positioner (3) are connected by thread, and lock into integrated structure;Travel adjustment positioner (3) and travel adjustment fixed body (6) are connected by thread;Rotary travel adjustment cap (2) can make integrated structure of travel adjustment cap (2) and travel adjustment positioner (3) as a whole forward or back;Travel adjustment positioner (3) forms limit, limits the distance that travel adjustment support rod (1) moves forward, and travel adjustment support rod (1) pushes against fluid injection ejector rod (13) and injects oil forward;Travel adjustment fixed body (6) and pump body (9) are connected by thread, and lock into integrated structure;Travel adjustment support rod (1) and Y ring mounting piece (11) are connected by thread, and lock into integrated structure;Tail fixed body (18) and pump body (9) are fixed by bolt connection;Pressure pipe connecting piece (20) and tail fixed body (18) are connected by thread, and lock into integrated structure;Pneumatic quick connector (21) and pressure pipe connecting piece (20) are connected by thread, and lock into integrated structure;Liquid is exported from the oil pipe in oil outlet pipe (23);Pneumatic is exported from the gas pipe in air outlet pipe (24);Finally liquid and gas are mixed and sprayed at another nozzle, to realize double-fluid injection effect.

2. The high precision pneumatic dual fluid adjustable metering pump of claim 1, wherein: Y ring mounting piece (11) is installed on the left end of travel adjustment fixed body (6), and Y ring (10) is sleeved on the outside of Y ring mounting piece (11);Spring support (12) is clampedly installed on the right side of fluid injection ejector rod (13), and spring support (15) is clampedly installed on the left side of fluid injection ejector rod (13);Spring (14) is sleeved and installed on the outside of fluid injection ejector rod (13), and spring (14) is installed between spring support (12) and spring support (15).

3. The high precision pneumatic dual fluid adjustable metering pump of claim 1, wherein: Sealing pad (16) is arranged on the left side of fluid injection ejector rod (13), and sealing pad support (17) is installed on the left side of sealing pad (16).

4. The high precision pneumatic dual fluid adjustable metering pump of claim 1, wherein: Third sealing ring (19) is installed on the inside of tail fixed body (18), and fourth sealing ring (22) is installed on the left end inside of tail fixed body (18).

5. The high precision pneumatic dual fluid adjustable metering pump of claim 1, wherein: Air exchange port (25) and oil inlet (26) are arranged on the main body of pump body (9).

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