Adjustable nozzle unit for a pneumatic positive displacement metering pump

Abstract

The utility model relates to the technical field of metering pump, and disclose a kind of adjustable spray head unit for pneumatic displacement metering pump, including outer shell and connecting seat one, adjusting assembly is arranged in the inner side of outer shell, adjusting assembly outer side is fixedly installed with threaded sleeve, threaded sleeve is screw connection with the inner side of outer shell, the end away from connecting seat one of outer shell is provided with ratchet sleeve, the ratchet sleeve is fixedly installed with adjusting assembly.The adjustable spray head unit for pneumatic displacement metering pump, the gap between sealing plug and connecting seat one is filled by sealing washer of rubber material, sealing plug is convenient to block the end opening of connecting seat one, both synergies realize double sealing, avoid oil leakage or compressed air channeling when pneumatic metering pump works, and sealing plug is connected frequency generator, to realize automatic regulation, can be selected according to actual working condition to adjust structure, avoid single structure to be damaged, to affect its normal flow regulation.

Description

Technical Field

[0001] This utility model relates to the field of metering pump technology, specifically an adjustable nozzle unit for a pneumatic volumetric metering pump. Background Technology

[0002] Metering pumps are a type of fluid transport machinery. Their outstanding feature is that they can maintain a constant flow rate regardless of the discharge pressure. They can simultaneously perform the functions of transporting, metering, and regulating, thereby simplifying the production process. In many industries, such as petrochemicals, pharmaceuticals, and food, precise control of fluid transport is required. Therefore, the accuracy and controllability of metering pumps are of high importance.

[0003] In the existing technology, although general metering pumps can deliver water normally, when adjusting the flow rate, they must rely on either manual adjustment or pneumatic adjustment. This makes it difficult for the two to be compatible at the same time, resulting in greater limitations in use. When a single structure is damaged, it will affect the normal flow rate adjustment, thus resulting in poor overall practicality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide an adjustable nozzle unit for a pneumatic volumetric metering pump. It can effectively solve the problem that in the prior art, although a general metering pump can deliver normally, when adjusting the flow rate, it is necessary to rely on a single manual adjustment or pneumatic adjustment, which easily leads to the incompatibility of the two at the same time, resulting in great limitations in use. When a single structure is damaged, it will affect the adjustment structure, resulting in poor overall practicality.

[0005] The technical solution adopted by this utility model is: an adjustable nozzle unit for a pneumatic volumetric metering pump, including an outer shell and a connecting seat 1. An adjustment component is provided at the inner edge of the outer shell, and a threaded sleeve is fixedly installed at the outer edge of the adjustment component. The threaded sleeve is threadedly connected to the inner edge of the outer shell. A ratchet sleeve is provided at the end of the outer shell away from the connecting seat 1, and the ratchet sleeve is fixedly installed with the adjustment component. The adjustment assembly includes a sealing sleeve and a connecting rod one. A connecting rod two is fixedly installed at the end of the connecting rod one away from the sealing sleeve, and a connecting column is fixedly installed at the end of the connecting rod two away from the connecting rod one.

[0006] Preferably, a connecting seat two is fixedly installed at the end of the connecting column away from the connecting rod two, the connecting seat two and the ratchet sleeve are fixedly installed, and the adjusting component is located inside the connecting seat one.

[0007] Through the above technical solution, and through the design of the connecting seat 2 and the ratchet sleeve, when the ratchet sleeve is rotated, the connecting rod 1 can be driven to rotate synchronously through the connecting column and the connecting rod 2, thereby driving the sealing sleeve to change the position of the oil outlet and realizing the adjustment of the oil output.

[0008] Preferably, a sealing plug is fixedly installed at the end of the connecting seat away from the outer shell, and a sealing gasket is fixedly installed at the end of the sealing plug near the connecting seat, wherein the sealing gasket is a rubber sleeve.

[0009] The above technical solution uses a rubber gasket to fill the gap between the sealing plug and the connecting seat. The sealing plug can easily seal the end opening of the connecting seat. The two work together to achieve double sealing, preventing oil leakage or compressed air leakage during the operation of the pneumatic metering pump. The sealing plug can be detached and connected to the frequency generator to achieve automatic adjustment. The adjustment structure can be selected according to the actual working conditions to avoid damage to a single structure, which would affect its normal flow regulation.

[0010] Preferably, an air inlet is provided at the outer edge of the outer casing, and an air drain outlet is provided at the outer edge of the outer casing and at one end near the threaded sleeve.

[0011] The above technical solution, through the design of the air inlet, facilitates the provision of compressed air power to the metering pump, and the air drain outlet discharges the condensate in the air circuit. The two work together to ensure the stable operation of the overall pneumatic system and prevent moisture from affecting the quality of the oil or causing corrosion of components.

[0012] Preferably, the connecting seat has an oil inlet at one end away from the outer casing and an oil outlet at the other end away from the outer casing, and the oil inlet and oil outlet are interconnected.

[0013] Through the above technical solution, the design of the oil inlet and oil outlet allows oil to be drawn in from the oil inlet and then discharged from the oil outlet, so that the oil can flow smoothly through the connecting seat and achieve metering in conjunction with the adjustment component.

[0014] Preferably, a fixing sleeve is fixedly installed at the inner edge of the connecting seat, the connecting rod passes through the fixing sleeve and extends to its outer edge, and the sealing sleeve is located at the end of the fixing sleeve away from the connecting rod.

[0015] The above technical solution, through the design of the fixed sleeve, facilitates the guidance of the connecting rod, and the sealing sleeve realizes the dynamic sealing between the connecting rod and the fixed sleeve. The two work together to ensure the stability and sealing of the adjustment component when it rotates and moves, and avoid oil leakage or flow fluctuation.

[0016] Preferably, a positioning bolt is threadedly connected to the outer edge of the connecting seat, and the positioning bolt passes through the connecting seat and extends to its outer edge.

[0017] Through the above technical solution, the positioning bolt design allows the positioning bolt to pass through the connecting seat and be fixed together with the metering pump body or bracket during installation. This ensures that the relative position of the nozzle unit and the metering pump remains unchanged, preventing loosening or misalignment of the connection due to vibration and improving overall practicality.

[0018] Compared with the prior art, this utility model provides an adjustable nozzle unit for a pneumatic volumetric metering pump, which has the following advantages: 1. The adjustable nozzle unit of this pneumatic volumetric metering pump uses a rubber sealing gasket to fill the gap between the sealing plug and the connecting seat. The sealing plug can easily seal the end opening of the connecting seat. The two work together to achieve double sealing, preventing oil leakage or compressed air leakage during the operation of the pneumatic metering pump. The sealing plug can be detached and connected to a frequency generator to achieve automatic adjustment. The adjustment structure can be selected according to the actual working conditions to avoid damage to a single structure, which would affect its normal flow regulation. 2. The adjustable nozzle unit of this pneumatic volumetric metering pump, through the design of the connecting seat two and the ratchet sleeve, when the ratchet sleeve is rotated, the connecting column and the connecting rod two drive the connecting rod one to rotate synchronously, thereby driving the sealing sleeve to change the position of the oil outlet and realize the adjustment of the oil output. Through the design of the positioning bolt, during installation, the positioning bolt can pass through the connecting seat one and be fixed to the metering pump body or bracket, so that the relative position of the nozzle unit and the metering pump remains unchanged, avoiding loosening or misalignment of the connection caused by vibration, and improving the overall practicality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 1 ; Figure 4 This is a schematic diagram of the cross-sectional structure of the present invention. Figure 2 ; Figure 5 This is a schematic diagram of the disassembled structure of this utility model; Figure 6 This is a schematic diagram of the disassembled structure of this utility model.

[0020] The components are as follows: 1. Outer shell; 2. Connecting seat one; 3. Sealing plug; 4. Sealing gasket; 5. Positioning bolt; 6. Adjusting assembly; 601. Sealing sleeve; 602. Connecting rod one; 603. Connecting rod two; 604. Connecting column; 605. Connecting seat two; 7. Threaded sleeve; 8. Ratchet sleeve; 9. Oil inlet; 10. Air drain port; 11. Air inlet; 12. Oil outlet; 13. Fixing sleeve. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: As Figure 1-6 As shown, the present invention provides an adjustable nozzle unit for a pneumatic volumetric metering pump, including an outer shell 1 and a connecting seat 2. An adjustment component 6 is provided at the inner edge of the outer shell 1, and a threaded sleeve 7 is fixedly installed at the outer edge of the adjustment component 6. The threaded sleeve 7 is threadedly connected to the inner edge of the outer shell 1. A ratchet sleeve 8 is provided at the end of the outer shell 1 away from the connecting seat 2. The ratchet sleeve 8 is fixedly installed with the adjustment component 6. The adjusting assembly 6 includes a sealing sleeve 601 and a connecting rod 602. A connecting rod 603 is fixedly installed at the end of the connecting rod 602 away from the sealing sleeve 601, and a connecting post 604 is fixedly installed at the end of the connecting rod 603 away from the connecting rod 602.

[0023] Specifically, a connecting seat 605 is fixedly installed at the end of the connecting column 604 away from the connecting rod 603. The connecting seat 605 and the ratchet sleeve 8 are fixedly installed. The adjusting component 6 is located inside the connecting seat 2. The advantage is that, through the design of the connecting seat 605 and the ratchet sleeve 8, when the ratchet sleeve 8 is rotated, the connecting column 604 and the connecting rod 603 can drive the connecting rod 602 to rotate synchronously, thereby driving the sealing sleeve 601 to change its position relative to the oil outlet 12, thus realizing the adjustment of the oil output.

[0024] Specifically, a sealing plug 3 is fixedly installed at the end of the connecting seat 2 away from the outer casing 1, and a sealing gasket 4 is fixedly installed at the end of the sealing plug 3 near the connecting seat 2. The sealing gasket 4 is a rubber sleeve. The advantage is that the rubber sealing gasket 4 fills the gap between the sealing plug 3 and the connecting seat 2, and the sealing plug 3 can easily seal the end opening of the connecting seat 2. The two work together to achieve double sealing and prevent oil leakage or compressed air leakage when the pneumatic metering pump is working.

[0025] Specifically, an air inlet 11 is provided at the outer edge of the outer casing 1, and an air drain outlet 10 is provided at the outer edge of the outer casing 1 and at one end near the threaded sleeve 7. The advantage is that the design of the air inlet 11 facilitates the provision of compressed air power to the metering pump, and the air drain outlet 10 discharges the condensate in the air path. The two work together to ensure the stable operation of the overall pneumatic system and prevent moisture from affecting the quality of the oil or causing the components to rust.

[0026] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0027] Specifically, the end of the connecting seat 2 away from the outer casing 1 is provided with an oil inlet 9, and the end of the connecting seat 2 away from the outer casing 1 is provided with an oil outlet 12. The oil inlet 9 and the oil outlet 12 are interconnected. The advantage is that, through the design of the oil inlet 9 and the oil outlet 12, oil can be drawn in from the oil inlet 9 and then discharged from the oil outlet 12, so that the oil can flow smoothly through the connecting seat 2 and achieve metering in conjunction with the adjusting component 6.

[0028] Specifically, a fixing sleeve 13 is fixedly installed at the inner edge of the connecting seat 1 2. The connecting rod 1 602 passes through the fixing sleeve 13 and extends to its outer edge. The sealing sleeve 601 is located at the end of the fixing sleeve 13 away from the connecting rod 2 603. The advantage is that the design of the fixing sleeve 13 facilitates the guidance of the connecting rod 1 602. The sealing sleeve 601 realizes the dynamic sealing between the connecting rod 1 602 and the fixing sleeve 13. The two work together to ensure the stability and sealing of the adjusting component 6 when it rotates and moves, and avoid oil leakage or flow fluctuation.

[0029] Specifically, a positioning bolt 5 is threaded onto the outer edge of the connecting seat 2. The positioning bolt 5 passes through the connecting seat 2 and extends to its outer edge. The advantage is that, through the design of the positioning bolt 5, during installation, the positioning bolt 5 can pass through the connecting seat 2 and be fixed to the metering pump body or bracket, so that the relative position of the nozzle unit and the metering pump remains unchanged, avoiding loosening or misalignment of the connection caused by vibration, and improving the overall practicality.

[0030] Working Principle: During use, the design of the connecting seat 2 605 and the ratchet sleeve 8 allows the connecting rod 1 602 to rotate synchronously via the connecting column 604 and the connecting rod 2 603 when the ratchet sleeve 8 is rotated. This, in turn, drives the sealing sleeve 601 to change its position relative to the oil outlet 12, thereby adjusting the oil output. The rubber sealing gasket 4 fills the gap between the sealing plug 3 and the connecting seat 1 2, and the sealing plug 3 effectively seals the end opening of the connecting seat 1 2. Together, they achieve a double seal, preventing oil leakage or compressed air leakage during the operation of the pneumatic metering pump. The design of the air inlet 11 facilitates the supply of compressed air power to the metering pump, and the air drain 10 discharges condensate from the air path. Together, these features ensure stable operation of the entire pneumatic system, preventing moisture from affecting oil quality or... The design of the oil inlet 9 and the oil outlet 12 allows oil to be drawn in through the oil inlet 9 and discharged through the oil outlet 12, enabling the oil to flow smoothly through the connecting seat 2. This, in conjunction with the adjusting component 6, achieves metering. The design of the fixing sleeve 13 facilitates the guidance of the connecting rod 602, and the sealing sleeve 601 achieves dynamic sealing between the connecting rod 602 and the fixing sleeve 13. Together, they ensure the stability and sealing of the adjusting component 6 during rotation and movement, preventing oil leakage or flow fluctuations. The design of the positioning bolt 5 allows the positioning bolt to pass through the connecting seat 2 and be fixed to the metering pump body or bracket during installation, keeping the relative position of the nozzle unit and the metering pump unchanged. This prevents loosening or misalignment of the connection due to vibration and improves overall practicality.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable nozzle unit for a pneumatic volumetric metering pump, comprising a housing (1) and a connecting base (2), characterized in that: An adjustment component (6) is provided at the inner edge of the outer shell (1), and a threaded sleeve (7) is fixedly installed at the outer edge of the adjustment component (6). The threaded sleeve (7) is threadedly connected to the inner edge of the outer shell (1). A ratchet sleeve (8) is provided at the end of the outer shell (1) away from the connecting seat (2). The ratchet sleeve (8) is fixedly installed to the adjustment component (6). The adjustment assembly (6) includes a sealing sleeve (601) and a connecting rod one (602). A connecting rod two (603) is fixedly installed at the end of the connecting rod one (602) away from the sealing sleeve (601), and a connecting column (604) is fixedly installed at the end of the connecting rod two (603) away from the connecting rod one (602).

2. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: The connecting post (604) is fixedly installed with a connecting seat (605) at the end away from the connecting rod (603). The connecting seat (605) and the ratchet sleeve (8) are fixedly installed. The adjusting component (6) is located inside the connecting seat (2).

3. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: A sealing plug (3) is fixedly installed at the end of the connecting seat (2) away from the outer shell (1), and a sealing gasket (4) is fixedly installed at the end of the sealing plug (3) close to the connecting seat (2). The sealing gasket (4) is a rubber sleeve.

4. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: An air inlet (11) is provided at the outer edge of the outer shell (1), and an air drain outlet (10) is provided at the outer edge of the outer shell (1) and at one end near the threaded sleeve (7).

5. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: The connecting seat 1 (2) has an oil inlet (9) at one end away from the outer shell (1) and an oil outlet (12) at the other end away from the outer shell (1). The oil inlet (9) and the oil outlet (12) are interconnected.

6. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: A fixing sleeve (13) is fixedly installed at the inner edge of the connecting seat (2). The connecting rod (602) passes through the fixing sleeve (13) and extends to its outer edge. The sealing sleeve (601) is located at the end of the fixing sleeve (13) away from the connecting rod (603).

7. The adjustable nozzle unit for a pneumatic positive displacement metering pump according to claim 1, characterized in that: A positioning bolt (5) is threadedly connected to the outer edge of the connecting seat (2), and the positioning bolt (5) passes through the connecting seat (2) and extends to its outer edge.

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