Plunger type metering pump

Abstract

The utility model relates to the technical field of plunger metering pumps, and discloses a plunger type metering pump which comprises a plunger metering pump body, an adjusting hand wheel is rotationally installed on the rear side of the plunger metering pump body, a gas-safety valve is fixedly installed in the middle of the top wall of the plunger metering pump body, and a one-way liquid outlet is fixedly installed on the left side of the top wall of the plunger metering pump body. A one-way liquid inlet is fixedly formed in the left side of the bottom wall of the plunger metering pump, the bottom wall of the one-way liquid inlet is in threaded connection with a connecting shell, a rotating column is rotationally connected to the middle of the inner wall of the connecting shell, a plurality of rotating blades are fixedly connected to the outer wall of the rotating column at equal intervals, and a sawtooth brush is rotationally connected to one side of each rotating blade. According to the device disclosed by the utility model, the rotating column is driven by the rotating blade to rotate left and right, so that liquid entering the device can be pushed and mixed, the flowability of the liquid is improved, and meanwhile, the sawtooth brushes swing, so that the condition that the liquid is caked and solidified at the liquid inlet is reduced, and the load is prevented from being increased when the device runs.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger metering pumps, in particular to a plunger type metering pump. Background Art

[0002] The plunger metering pump is a common hydraulic pump that mainly transports liquid through the reciprocating motion of the plunger. It is used in situations requiring high pressure and high flow, and is widely used in hydraulic systems, chemical industry, oil fields and mechanical fields. The plunger metering pump directly inhales and discharges the working medium through the reciprocating motion of the plunger. Since the plunger and seal are in contact with the medium, selecting the appropriate plunger material and seal form can ensure that the pump has ideal performance during operation. Plunger metering pumps include valve pumps and valveless pumps. The plunger metering pump has a simple structure and is resistant to high temperature and high pressure.

[0003] After searching, the Chinese patent publication number is: CN220470133U, which discloses a plunger-type metering pump, which relates to the technical field of metering pumps. The application includes a plunger, a pump housing, and a liquid accumulation chamber arranged in the pump housing, the pump housing being provided with two openings to keep the liquid accumulation chamber connected to the outside; a rotating frame movably arranged on the pump housing and a cover plate that rotates with the rotating frame, the opening having a contact surface along the edge facing outward; and a scraper component elastically connected to the rotating frame, which acts on the contact surface and the cover plate surface. The application uses the scraper component to cooperate with the rotating frame. When the plunger moves, the rotating frame rotates, thereby swinging the scraper component to continuously scrape the contact surface and the cover plate surface, thereby achieving a cleaning effect, thereby reducing the accumulation or solidification of the liquid medium at the valve port, thereby reducing the impact on the entire pump body feeding process. However, in actual use, the device uses the scraper component and the rotating frame to clean the pump inlet. However, the additional structure affects the load operation of the metering pump, thereby reducing the service life of the metering pump. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a plunger-type metering pump, which aims to improve the problem that the added structure will affect the load operation of the metering pump, thereby reducing the service life of the metering pump.

[0005] The top of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure, and the interlocking structure of described sliding panel also is provided with an interlocking structure.

[0006] Through the above technical solution: the one-way liquid inlet can extract liquid, so that the flowing liquid impacts the rotary page, so that the rotating rotor and rotary page can push and mix the incoming liquid, thereby improving the fluidity of the liquid. At the same time, under the reciprocating motion of the plunger, multiple serrated brushes swing along with the rotating rotary page, thereby reducing the possibility of liquid agglomeration and solidification at the liquid inlet, and reducing the load on the operation of the device.

[0007] As a further description of the above technical solution:

[0008] The cooling mechanism includes a frame, the inner wall of the frame is fixedly connected to the middle of the plunger metering pump, a plurality of connecting columns are fixedly connected to the front side of the frame at equal intervals, a filter shell is fixedly connected to the front side of the connecting columns, a plurality of hollow tubes are connected to the front side of the filter shell at equal intervals, a filter plate is fixedly connected to the front side of the hollow tubes, an adsorption carbon plate is fixedly connected to the inner wall of the filter shell, and a ventilation fan device is fixedly installed on the rear side of the filter shell.

[0009] Through the above technical solution: the external air flow is extracted, and then the filter plate can filter impurities in the extracted air flow, and then the air flow passes through the adsorption carbon plate again to adsorb water vapor, thereby reducing the situation where the water vapor in the air flow during cooling will cause damage to the outer wall of the overheated plunger metering pump during operation, thereby achieving the purpose of cooling the plunger metering pump and increasing the overall service life of the pump.

[0010] As a further description of the above technical solution:

[0011] A control switch is fixedly connected to the front side of the filter housing, and the control switch is electrically connected to the plunger metering pump and the ventilation fan equipment respectively.

[0012] Through the above technical solution, the control switch can be used to turn the device on and off individually.

[0013] As a further description of the above technical solution:

[0014] The bottom wall of the connecting shell is fixedly connected with a blocking plate, and the top wall of the blocking plate is provided with a plurality of filter holes at equal intervals.

[0015] The above technical solution effectively reduces the risk of larger particles entering the interior of the plunger metering pump.

[0016] As a further description of the above technical solution:

[0017] Two mounting seats are fixedly connected to the left and right sides of the bottom wall of the plunger metering pump, and the top walls of the plurality of mounting seats are each provided with a mounting groove.

[0018] Through the above technical solution, the mounting seat and the mounting groove are convenient for installing and fixing the plunger metering pump.

[0019] As a further description of the above technical solution:

[0020] A sealing ring is fixedly connected to the top end of the outer wall of the connecting shell, and the outer shape of the sealing ring adopts a cylindrical design.

[0021] Through the above technical solution, the sealing ring can improve the sealing effect between the connecting shell and the one-way liquid inlet.

[0022] As a further description of the above technical solution:

[0023] The bottoms of the two locking plates are fixedly connected with rubber sleeves, and the outer dimensions of the two rubber sleeves are matched with the inner dimensions of the corresponding locking grooves.

[0024] Through the above technical solution, the rubber sleeve improves the connection effect when the locking plate and the locking groove are locked.

[0025] As a further description of the above technical solution:

[0026] A plurality of square grooves are equidistantly formed inside the plurality of rotating pages, and a plurality of rubber strips are equidistantly and fixedly connected to the outer wall of the adjusting hand wheel.

[0027] The above technical solution increases the shear force during the rotation of the hinges, thereby improving the effect of cleaning condensate.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, the reciprocating motion of the plunger on the diaphragm enables the device to extract liquid through the one-way liquid inlet, and then the rotating page drives the rotating column to rotate, so that the rotating rotating column and rotating pages can push and mix the incoming liquid, thereby improving the fluidity of the liquid. Under the action of the centrifugal force generated by the rotation of the rotating column and rotating pages, multiple serrated brushes swing together, thereby reducing the situation of liquid agglomeration and solidification at the liquid inlet, and avoiding the increase of load when the device is in operation.

[0030] 2. In the present invention, by starting the ventilation fan equipment, the filter shell can draw in external airflow, and then the airflow passes through multiple filter plates to filter impurities, and then the airflow after preliminary filtration passes through the adsorption carbon plate again to adsorb water vapor, thereby reducing the damage caused by water vapor to the outer wall of the plunger metering pump with higher heat during operation during cooling, thereby achieving the purpose of cooling the working plunger metering pump, thereby increasing the overall service life of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A three-dimensional diagram of a plunger-type metering pump proposed in the present utility model;

[0032] Figure 2 This is a side view of a plunger-type metering pump proposed in the present utility model;

[0033] Figure 3 This is a cross-sectional view of a connecting shell of a plunger-type metering pump proposed in the present invention;

[0034] Figure 4 This is a structural diagram of a plunger-type metering pump proposed in the present invention;

[0035] Figure 5 The present invention is a schematic diagram of a cooling mechanism of a plunger-type metering pump.

[0036] Legend:

[0037] 1. Plunger metering pump; 2. Cooling mechanism; 201. Frame; 202. Connecting column; 203. Filter housing; 204. Hollow tube; 205. Filter plate; 206. Adsorption carbon plate; 207. Ventilation fan equipment; 3. Adjustment handwheel; 4. Gas safety valve; 5. One-way liquid outlet; 6. One-way liquid inlet; 7. Connecting housing; 8. Rotating column; 9. Rotating leaf; 10. Serrated brush; 11. Square groove; 12. Locking housing; 13. Locking groove; 14. Locking plate; 15. Rubber sleeve; 16. Blocking plate; 17. Filter hole; 18. Control switch; 19. Mounting seat; 20. Mounting groove; 21. Sealing ring; 22. Rubber strip. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] Reference Figure 1 、 Figure 3 and Figure 4 The utility model provides an embodiment: a plunger metering pump, including a plunger metering pump 1, a regulating hand wheel 3 is rotatably installed on the rear side of the plunger metering pump 1, and the plunger metering pump 1 can be adjusted by adjusting the hand wheel 3 to complete the conversion between manual, electric and start. A gas safety valve 4 is fixedly installed on the middle part of the top wall of the plunger metering pump 1, and a one-way liquid outlet 5 is fixedly installed on the left side of the top wall of the plunger metering pump 1. The gas safety valve 4 can be used to place differential pressure and automatic exhaust, thereby protecting the safe operation of the plunger metering pump. The one-way liquid outlet 5 can transport the extracted liquid, and a one-way liquid inlet 6 is fixedly installed on the left side of the bottom wall of the plunger metering pump 1. The bottom wall of the one-way liquid inlet 6 is threadedly connected with a connection Shell 7, the middle part of the inner wall of the connecting shell 7 is rotatably connected with a rotating column 8, the outer wall of the rotating column 8 is equidistantly fixedly connected with a plurality of rotating pages 9, the plurality of rotating pages 9 can drive the rotating column 8 to rotate, and a sawtooth brush 10 is rotatably connected to one side of the rotating page 9, the outer wall of the connecting shell 7 is fixedly connected with a locking shell 12, the front and rear sides of the locking shell 12 are provided with locking grooves 13, the front and rear sides of the one-way liquid inlet 6 are rotatably connected with locking plates 14, and the locking plates 14 are flipped so that they can be fixed with the locking shell 12, thereby improving the connection effect between the connecting shell 7 and the one-way liquid inlet 6, the bottoms of the two locking plates 14 are respectively engaged with the corresponding locking grooves 13, and a cooling mechanism 2 is provided in the middle of the plunger metering pump 1;

[0040] Specifically, when the plunger metering pump 1 is started, the internal plunger reciprocates the diaphragm under the action of the driving force, causing the left area of ​​the diaphragm to contract and expand periodically, thereby generating air pressure changes in the pump body. As the air pressure rises, multiple rotors 9 and the rotor column 8 are driven to rotate left and right, so that the one-way liquid inlet 6 can be opened and liquid can be extracted. When the liquid enters the connecting shell 7, the liquid directly acts on the rotor 9. This impact force is converted by the rotational movement of the rotor 9 and the rotor column 8 into a driving force to propel the liquid forward, which not only improves the fluidity of the liquid, but also ensures the uniformity and stability of the liquid during the transportation process. In addition, the left and right rotation of the rotor column 8 and the rotor 9 also drives the swing of multiple serrated brushes 10, which can effectively prevent the formation of caking or solidified condensate inside the connecting shell 7 when the liquid is stationary. By continuous stirring and flushing, the serrated brush 10 reduces the risk of continued transportation of condensate, thereby avoiding damage to the device due to excessive load during operation.

[0041] Reference Figure 1 、 Figure 2 and Figure 5 The cooling mechanism 2 includes a frame 201. The inner wall of the frame 201 is fixedly connected to the middle of the plunger metering pump 1. The frame 201 can support and fix the cooling mechanism 2. A plurality of connecting columns 202 are fixedly connected to the front side of the frame 201 at equal intervals. A filter shell 203 is fixedly connected to the front side of the connecting column 202. The airflow can be filtered through the filter shell 203. A plurality of hollow tubes 204 are equidistantly connected to the front side of the filter shell 203. A filter plate 205 is fixedly connected to the front side of the hollow tube 204, so that the filter plate 205 can preliminarily filter impurities contained in the air. An adsorption carbon plate 206 is fixedly connected to the inner wall of the filter shell 203, so that the adsorption carbon plate 206 can adsorb water vapor in the airflow. A ventilation fan device 207 is fixedly installed on the rear side of the filter shell 203.

[0042] Specifically, by starting the ventilation fan device 207, the filter shell 203 guides the external air flow to enter. The air flow first passes through multiple filter plates 205 to effectively remove impurities therein, and then flows into the interior of the filter shell 203 through the hollow tube 204. The air flow after preliminary filtration will pass through the adsorption carbon plate 206. The adsorption carbon plate 206 can adsorb water vapor in the air flow, reducing the potential damage of water vapor to the outer wall of the high-temperature plunger metering pump 1 during the cooling process, ensuring that the active part of the plunger in the middle of the plunger metering pump 1 is effectively cooled, thereby maintaining the temperature balance of the entire device.

[0043] Reference Figure 1 、 Figure 4 and Figure 5 The front side of the filter housing 203 is fixedly connected to a control switch 18, which is electrically connected to the plunger metering pump 1 and the ventilation fan device 207 respectively; the bottom wall of the connecting housing 7 is fixedly connected to a blocking plate 16, and the top wall of the blocking plate 16 is equidistantly provided with a plurality of filter holes 17; the left and right sides of the bottom wall of the plunger metering pump 1 are fixedly connected to two mounting seats 19, and the top walls of the plurality of mounting seats 19 are each provided with a mounting groove 20;

[0044] Specifically, through the control switch 18 electrically connected to the plunger metering pump 1 and the ventilation fan device 207 respectively, the control switch 18 can individually open and close the equipment in the device, and the baffle plate 16 and multiple filter holes 17 can filter larger particles of the extracted liquid medium. The mounting seat 19 and the mounting groove 20 make it easy to fix the plunger metering pump 1.

[0045] Reference Figure 1 、 Figure 2 and Figure 4, a sealing ring 21 is fixedly connected to the top of the outer wall of the connecting shell 7, and the outer shape of the sealing ring 21 adopts a cylindrical design; the bottoms of the two locking plates 14 are fixedly connected to rubber sleeves 15, and the outer dimensions of the two rubber sleeves 15 match the inner dimensions of the corresponding locking grooves 13; multiple square grooves 11 are evenly spaced inside the multiple turning pages 9, and multiple rubber strips 22 are evenly spaced and fixedly connected to the outer wall of the adjusting hand wheel 3;

[0046] Specifically, the sealing ring 21 can improve the sealing effect between the top of the connecting shell 7 and the bottom of the one-way liquid inlet 6, the rubber sleeve 15 can improve the static friction force when the locking plate 14 is locked, thereby improving the fixing effect, and the multiple square grooves 11 can increase the shear force when the hinge 9 rotates, thereby improving the uniform shearing of the liquid.

[0047] Working principle: When the plunger metering pump 1 is started, the plunger inside it makes the diaphragm reciprocate, so that the left area of ​​the diaphragm inside the plunger metering pump 1 contracts or expands, and the air pressure generated drives multiple rotary blades 9 to drive the rotary column 8 to rotate left and right, so that the one-way liquid inlet 6 starts to extract liquid. After the liquid enters the connecting shell 7, the liquid impacts the rotary blade 9, so that the rotating rotary column 8 and rotary blade 9 can push the incoming liquid, thereby improving the fluidity of the liquid. At the same time, when the rotary column 8 and rotary blade 9 rotate left and right, the multiple sawtooth brushes 10 swing together, thereby reducing the condensation of the liquid inside the connecting shell 7. The continuous conveying situation avoids the increase of the load when the device is running and increases the service life of the device. By starting the ventilation fan device 207, the filter shell 203 can guide the external airflow, so that the guided airflow passes through multiple filter plates 205 to filter impurities and enters the interior of the filter shell 203 through the hollow tube 204. Secondly, the airflow after preliminary filtration passes through the adsorption carbon plate 206 again to adsorb the water vapor contained in the airflow, which reduces the damage of the water vapor to the outer wall of the plunger metering pump 1 with higher heat when the airflow is cooled, thereby completing the purpose of cooling the plunger activity in the middle of the working plunger metering pump 1 and ensuring the temperature balance of the device.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plunger metering pump, comprising a plunger metering pump (1), characterized in that: An adjusting hand wheel (3) is rotatably mounted on the rear side of the plunger metering pump (1), a gas safety valve (4) is fixedly mounted on the middle of the top wall of the plunger metering pump (1), a one-way liquid outlet (5) is fixedly mounted on the left side of the top wall of the plunger metering pump (1), a one-way liquid inlet (6) is fixedly mounted on the left side of the bottom wall of the plunger metering pump (1), a connecting shell (7) is threadedly connected to the bottom wall of the one-way liquid inlet (6), a rotating column (8) is rotatably connected to the middle of the inner wall of the connecting shell (7), and the outer wall of the rotating column (8) is fixedly mounted on the left side of the bottom wall of the plunger metering pump (1). A plurality of rotating leaves (9) are fixedly connected at equal intervals, a sawtooth brush (10) is rotatably connected to one side of the rotating leaf (9), a locking shell (12) is fixedly connected to the outer wall of the connecting shell (7), and locking grooves (13) are provided on the front and rear sides of the locking shell (12), and locking plates (14) are rotatably connected to the front and rear sides of the one-way liquid inlet (6), and the bottoms of the two locking plates (14) are respectively engaged with the corresponding locking grooves (13), and a cooling mechanism (2) is provided in the middle of the plunger metering pump (1).

2. A plunger-type metering pump according to claim 1, characterized in that: The cooling mechanism (2) comprises a frame (201), the inner wall of the frame (201) is fixedly connected to the middle of the plunger metering pump (1), a plurality of connecting columns (202) are fixedly connected to the front side of the frame (201) at equal intervals, a filter shell (203) is fixedly connected to the front side of the connecting columns (202), a plurality of hollow tubes (204) are connected to the front side of the filter shell (203) at equal intervals, a filter plate (205) is fixedly connected to the front side of the hollow tube (204), an adsorption carbon plate (206) is fixedly connected to the inner wall of the filter shell (203), and a ventilation fan device (207) is fixedly installed on the rear side of the filter shell (203).

3. A plunger-type metering pump according to claim 2, characterized in that: A control switch (18) is fixedly connected to the front side of the filter housing (203), and the control switch (18) is electrically connected to the plunger metering pump (1) and the ventilation fan device (207), respectively.

4. A plunger-type metering pump according to claim 1, characterized in that: A blocking plate (16) is fixedly connected to the bottom wall of the connecting shell (7), and a plurality of filter holes (17) are equidistantly formed on the top wall of the blocking plate (16).

5. The plunger metering pump according to claim 1, characterized in that: Two mounting seats (19) are fixedly connected to the left and right sides of the bottom wall of the plunger metering pump (1), and the top walls of the plurality of mounting seats (19) are each provided with a mounting groove (20).

6. The plunger-type metering pump according to claim 1, characterized in that: A sealing ring (21) is fixedly connected to the top end of the outer wall of the connecting shell (7), and the outer shape of the sealing ring (21) adopts a cylindrical design.

7. The plunger metering pump according to claim 1, characterized in that: The bottoms of the two locking plates (14) are fixedly connected to rubber sleeves (15), and the external dimensions of the two rubber sleeves (15) respectively match the internal dimensions of the corresponding locking grooves (13).

8. The plunger-type metering pump according to claim 1, characterized in that: A plurality of square grooves (11) are equidistantly formed inside the plurality of rotating pages (9), and a plurality of rubber strips (22) are equidistantly and fixedly connected to the outer wall of the adjusting hand wheel (3).

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