Ceramic metering pump

Abstract

The utility model relates to the technical field of metering pumps, in particular to a ceramic metering pump which comprises a pump shell, a liquid inlet pipe is fixed and communicated to the surface of the pump shell, a liquid discharge pipe is fixed and communicated to the surface of the pump shell, a motor is fixedly connected to the surface of the pump shell, and the output end of the motor is fixedly connected with a connecting rod. A piston is slidably connected into the pump shell, the connecting rod is rotatably connected with the piston, one-way valves are fixedly connected to the inner wall of the liquid discharging pipe and the inner wall of the liquid inlet pipe, an infrared sensor is fixedly connected to the inner wall of the pump shell, the pump shell, the connecting rod, the piston, the liquid inlet pipe and the liquid discharging pipe are all made of ceramic materials, and a filtering structure is arranged on the inner wall of the liquid inlet pipe. According to the metering pump, liquid flowing through the liquid inlet pipe can be filtered through the filter structure and the filter screen, the situation that solid impurities in the liquid enter the pump shell to block the pump shell is prevented, and therefore it is guaranteed that the metering pump can work normally.

Description

Technical Field

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

[0002] A metering pump is a device used to accurately measure and deliver liquids or gases. It is usually used in industrial fields that require precise control of flow and dosage. The working principle of a metering pump is mainly based on the work of moving parts such as a plunger or diaphragm to achieve precise delivery of fluids.

[0003] In the prior art, there is a patent document with the announcement number CN219672781U, which discloses a ceramic metering pump, including a fixed seat, a buffer frame fixedly connected to the top of the fixed seat, a damping positioning rod fixedly connected to the inside of the buffer frame, a fixed damping rod fixedly connected to the inside of the buffer frame, a buffer spring fixedly connected to the outer wall of the fixed damping rod, and a damping block fixedly connected to one end of the buffer spring. The patent document reduces the amplitude of the movement of the metering pump frame by the damping of the damping positioning rod, and at the same time drives the rotating plate to rotate, thereby driving the damping block to move along the outer wall of the fixed damping rod, thereby driving the compression of the buffer spring, thereby buffering the force of the movement of the metering pump frame through the buffer spring, thereby buffering the vibration force generated during the work, and facilitating the buffering of the vibration force generated when the metering pump frame is working, thereby reducing the loosening of parts caused by the vibration force.

[0004] The above-mentioned and prior art technologies have the following defects: during the operation of the metering pump, when the transported liquid contains solid impurities, the impurities are easily accumulated in the metering pump, causing the metering pump to be blocked, thereby affecting the normal operation of the metering pump.

[0005] Therefore, a ceramic metering pump is proposed. Utility Model Content

[0006] The utility model aims to solve the defect that when the transported liquid contains solid impurities, the impurities are easily accumulated in the metering pump, and proposes a ceramic metering pump.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ceramic metering pump, comprising a pump casing, the surface of the pump casing is fixed and connected with a liquid inlet pipe, the surface of the pump casing is fixed and connected with a liquid discharge pipe, the surface of the pump casing is fixedly connected with a motor, the output end of the motor is fixedly connected with a connecting rod, a piston is slidably connected in the pump casing, the connecting rod is rotatably connected to the piston, the inner walls of the liquid discharge pipe and the liquid inlet pipe are both fixedly connected with a one-way valve, the inner wall of the pump casing is fixedly connected with an infrared sensor, the pump casing, connecting rod, piston, liquid inlet pipe and liquid discharge pipe are all made of ceramic material, the inner wall of the liquid inlet pipe is provided with a filtering structure, the filtering structure comprises a cover plate, the cover plate is slidably connected to the liquid inlet pipe, the inner wall of the cover plate is fixedly connected with a collar, the collar is slidably connected to the liquid inlet pipe, and the inner wall of the collar is slidably connected with a filter.

[0008] The effect achieved by the above components is: by setting up the filtering structure, the filter can filter the liquid flowing through the liquid inlet pipe, preventing solid impurities in the liquid from entering the pump casing and causing the pump casing to be blocked, thereby ensuring that the metering pump can work normally.

[0009] Preferably, the filter screen has a conical structure.

[0010] The effect achieved by the above components is: by setting the filter screen into a conical structure, when impurities slide into the inner wall of the filter screen, they will accumulate at the tip of the filter screen. At this time, the part of the filter screen close to the ring can filter the liquid normally, thereby reducing the obstruction of impurities to the flow of liquid.

[0011] Preferably, a fixing plate is fixedly connected to the outer wall of the liquid inlet pipe, bolts are internally threadedly connected to the fixing plate, and a rotating plate is rotatably connected to the surface of the cover plate.

[0012] The effect achieved by the above components is: rotating the rotating plate, when the rotating plate is rotated to between the bolt and the liquid inlet pipe, the bolt is rotated, and the bolt reaches the position of limiting the rotating plate, thereby limiting the position of the cover plate.

[0013] Preferably, a triangular block is fixedly connected to the surface of the rotating plate, and the bolt abuts against the inclined surface of the triangular block.

[0014] The effect achieved by the above components is that the triangular block can improve the limiting effect of the bolt on the rotating plate by means of its own inclined surface.

[0015] Preferably, a slot is provided on the surface of the filter screen, and a block is fixedly connected to the inner wall of the cover plate, and the size of the block matches the size of the slot.

[0016] The effect achieved by the above components is that when the card slot is engaged with the card block, the card block can support the filter screen, thereby improving the stability of the filter screen during operation.

[0017] Preferably, a sealing strip is glued to the inner wall of the cover plate, and the sealing strip is slidably connected to the liquid inlet pipe.

[0018] The effects achieved by the above components are: the sealing strip can improve the sealing between the cover plate and the liquid inlet pipe.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] In the utility model, by providing a filtering structure, the filter screen can filter the liquid flowing through the liquid inlet pipe to prevent solid impurities in the liquid from entering the pump casing and causing the pump casing to be blocked, thereby ensuring that the metering pump can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a schematic diagram of the cross-sectional structure of the pump casing of the utility model;

[0023] Figure 3 This is a schematic diagram of the split structure of the air intake pipe of the utility model;

[0024] Figure 4 It is a structural schematic diagram of the cover plate of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the filter screen of the utility model;

[0026] Legend: 1. Pump housing; 2. Liquid inlet pipe; 3. Liquid discharge pipe; 4. Filter structure; 401. Cover plate; 402. Ring; 403. Filter screen; 404. Fixing plate; 405. Bolt; 406. Turn plate; 407. Slot; 408. Block; 409. Triangle block; 410. Sealing strip; 5. Motor; 6. Connecting rod; 7. Piston; 8. One-way valve; 9. Infrared sensor. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0029] like Figure 1-5As shown, the utility model provides a ceramic metering pump, including a pump casing 1, a surface of the pump casing 1 is fixed and connected with a liquid inlet pipe 2, a surface of the pump casing 1 is fixed and connected with a liquid discharge pipe 3, a motor 5 is fixedly connected to the surface of the pump casing 1, an output end of the motor 5 is fixedly connected with a connecting rod 6, a piston 7 is slidably connected in the pump casing 1, the connecting rod 6 is rotatably connected to the piston 7, a one-way valve 8 is fixedly connected to the inner walls of the liquid discharge pipe 3 and the liquid inlet pipe 2, an infrared sensor 9 is fixedly connected to the inner wall of the pump casing 1, the pump casing 1, the connecting rod 6, the piston 7, the liquid inlet pipe 2 and the liquid discharge pipe 3 are all made of ceramic material, a filtering structure 4 is provided on the inner wall of the liquid inlet pipe 2, the filtering structure 4 includes a cover plate 401, the cover plate 401 is slidably connected to the liquid inlet pipe 2, a collar 402 is fixedly connected to the inner wall of the cover plate 401, the collar 402 is slidably connected to the liquid inlet pipe 2, and a filter screen 403 is slidably connected to the inner wall of the collar 402.

[0030] like Figure 3-Figure 5 As shown, the filter screen 403 is a conical structure. By setting the filter screen 403 to a conical structure, when impurities slide into the inner wall of the filter screen 403, they will accumulate at the tip of the filter screen 403. At this time, the part of the filter screen 403 close to the collar 402 can filter the liquid normally, thereby reducing the obstruction of the impurities to the flow of the liquid. The outer wall of the liquid inlet pipe 2 is fixedly connected with a fixing plate 404, and the fixing plate 404 is internally threaded with a bolt 405. The surface of the cover plate 401 is rotatably connected with a rotating plate 406. The rotating plate 406 is rotated. When the rotating plate 406 is rotated to between the bolt 405 and the liquid inlet pipe 2, the bolt 405 is rotated. The bolt 405 reaches the position of limiting the rotating plate 406, thereby limiting the position of the cover plate 401. The surface of the rotating plate 406 is fixedly connected with a triangular block 409, and the bolt 405 abuts against the inclined surface of the triangular block 409. The triangular block 409 can improve the limiting effect of the bolt 405 on the rotating plate 406 by means of its own inclined surface.

[0031] like Figure 3-Figure 5 As shown, a slot 407 is provided on the surface of the filter 403, and a block 408 is fixedly connected to the inner wall of the cover 401. The size of the block 408 is matched with the size of the slot 407. When the slot 407 and the block 408 are engaged, the block 408 can support the filter 403, thereby improving the stability of the filter 403 during operation. A sealing strip 410 is glued to the inner wall of the cover 401, and the sealing strip 410 is slidably connected to the liquid inlet pipe 2. The sealing strip 410 can improve the sealing between the cover 401 and the liquid inlet pipe 2.

[0032] The overall working principle is that during the operation of the metering pump, the output end of the motor 5 can drive the connecting rod 6 to rotate, and the rotation of the connecting rod 6 will drive the piston 7 to slide in the horizontal direction. During this process, when the piston 7 slides in the direction away from the discharge pipe 3, the one-way valve 8 in the discharge pipe 3 is closed and the one-way valve 8 in the inlet pipe 2 is opened. At this time, the liquid will flow into the pump housing 1 through the inlet pipe 2. When the piston 7 slides in the direction close to the discharge pipe 3, the one-way valve 8 in the discharge pipe 3 is opened and the one-way valve 8 in the inlet pipe 2 is closed. At this time, the liquid will be pressed into The drain pipe 3 is provided to realize the liquid delivery. In this process, the infrared sensor 9 can detect the movement of the connecting rod 6. By detecting the number of times the connecting rod 6 passes and combining the amount of liquid delivered each time, the total amount of liquid delivered can be measured. When it is necessary to filter the solid impurities in the liquid, the filter 403 is slid along the inner wall of the collar 402. When the card slot 407 is engaged with the card block 408, the card block 408 can support the filter 403, thereby improving the stability of the filter 403 when working. Then the cover plate 407 is placed on the cover plate 408. 01 slides into the liquid inlet pipe 2, and the movement of the cover plate 401 causes the collar 402 to press against the inner wall of the liquid inlet pipe 2. At the same time, the sealing strip 410 can improve the sealing between the cover plate 401 and the liquid inlet pipe 2. Then, the rotating plate 406 is rotated. When the rotating plate 406 is rotated to between the bolt 405 and the liquid inlet pipe 2, the bolt 405 is rotated. The bolt 405 moves with the help of the thread. When the bolt 405 presses against the inclined surface of the triangular block 409, the bolt 405 reaches the position of limiting the rotating plate 406, thereby limiting the position of the cover plate 401. The triangular block 409 can The inclined surface itself improves the limiting effect of the bolt 405 on the rotating plate 406. The filter screen 403 can filter the liquid flowing through the liquid inlet pipe 2 to prevent solid impurities in the liquid from entering the pump housing 1 and causing the pump housing 1 to be blocked, thereby ensuring that the metering pump can work normally. By setting the filter screen 403 to a conical structure, when impurities slide into the inner wall of the filter screen 403, they will accumulate at the tip of the filter screen 403. At this time, the part of the filter screen 403 close to the ring 402 can filter the liquid normally, thereby reducing the hindrance of impurities to the flow of liquid.

[0033] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A ceramic metering pump, comprising a pump housing (1), a surface of the pump housing (1) being fixed and connected with a liquid inlet pipe (2), a surface of the pump housing (1) being fixed and connected with a liquid discharge pipe (3), a surface of the pump housing (1) being fixedly connected with a motor (5), an output end of the motor (5) being fixedly connected with a connecting rod (6), a piston (7) being slidably connected inside the pump housing (1), the connecting rod (6) being rotatably connected with the piston (7), the inner walls of the liquid discharge pipe (3) and the liquid inlet pipe (2) being fixedly connected with a one-way valve (8), the inner wall of the pump housing (1) being fixedly connected with an infrared sensor (9), the pump housing (1), the connecting rod (6), the piston (7), the liquid inlet pipe (2) and the liquid discharge pipe (3) being all made of ceramic material, characterized in that: The inner wall of the liquid inlet pipe (2) is provided with a filtering structure (4), the filtering structure (4) comprising a cover plate (401), the cover plate (401) being slidably connected to the liquid inlet pipe (2), a collar (402) being fixedly connected to the inner wall of the cover plate (401), the collar (402) being slidably connected to the liquid inlet pipe (2), and a filter screen (403) being slidably connected to the inner wall of the collar (402).

2. A ceramic metering pump according to claim 1, characterized in that: The filter screen (403) has a conical structure.

3. A ceramic metering pump according to claim 1, characterized in that: A fixing plate (404) is fixedly connected to the outer wall of the liquid inlet pipe (2), a bolt (405) is internally threadedly connected to the fixing plate (404), and a rotating plate (406) is rotatably connected to the surface of the cover plate (401).

4. A ceramic metering pump according to claim 3, characterized in that: A triangular block (409) is fixedly connected to the surface of the rotating plate (406), and the bolt (405) abuts against the inclined surface of the triangular block (409).

5. A ceramic metering pump according to claim 1, characterized in that: A card slot (407) is provided on the surface of the filter screen (403), and a card block (408) is fixedly connected to the inner wall of the cover plate (401), wherein the size of the card block (408) matches the size of the card slot (407).

6. A ceramic metering pump according to claim 1, characterized in that: A sealing strip (410) is glued to the inner wall of the cover plate (401), and the sealing strip (410) is slidably connected to the liquid inlet pipe (2).

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