A pump body maintenance device

Abstract

The application relates to the technical field of pump bodies, in particular to a pump body maintenance device which comprises a cylinder, an extension rod, a first chamber, a shell, a second chamber, a third chamber, a liquid outlet and a liquid inlet; the first chamber, the second chamber and the third chamber are located on the inner side of the shell; a fixed device is arranged at the middle position of a diaphragm; the second chamber and the third chamber are arranged on the lower end of the shell respectively; a first ball and a second ball are arranged on the inner side of the second chamber and the third chamber respectively and are used for controlling the flow of liquid. The symmetrical limiting structure arranged below the diaphragm prevents the problem of overextension of the diaphragm during work, avoids the problem of the decrease of the elasticity of the diaphragm caused by overextension of the diaphragm, and at the same time, the antiseptic or stabilizer is intermittently put into the pump body, so that the corrosion of the chemical substances to the diaphragm is slowed down, and the service life of the pump body is prolonged.

Description

Technical Field

[0001] This invention relates to the field of pump body technology, and in particular to a pump body maintenance device. Background Technology

[0002] Diaphragm pumps, also known as control pumps, are a major type of actuator. They receive control signals from a regulating control unit and use power to change the flow rate of fluids. In process control, diaphragm pumps receive control signals from regulators or computers to change the flow rate of the controlled medium, maintaining the controlled parameters within the required range, thereby achieving automation of the production process.

[0003] When a diaphragm pump is working, the telescopic rod drives the diaphragm inside the pump body to reciprocate. During the reciprocating motion of the diaphragm and the chemical corrosion of the environment in which the diaphragm is located, the diaphragm will harden, which will reduce the elasticity of the material and thus affect the efficiency and performance of the pump. Summary of the Invention

[0004] The purpose of this invention is to address the drawback of reduced material elasticity in existing technologies by proposing a pump body maintenance device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a pump body maintenance device, including a cylinder, a telescopic rod, a first chamber, a housing, a second chamber, a third chamber, an outlet, and an inlet:

[0007] The first chamber, the second chamber, and the third chamber are located inside the shell and are interconnected. The cylinder is installed on the top of the shell. A diaphragm is horizontally fixed in the middle of the first chamber. A retainer is installed in the middle of the diaphragm. The telescopic rod connected to the inner wall of the cylinder extends into the first chamber and is fixedly connected to the retainer.

[0008] The second chamber and the third chamber are respectively located on both sides of the lower end of the shell. The liquid outlet is located on one side of the third chamber, and the liquid inlet is located on one side of the second chamber. The first sphere and the second sphere are located inside the second chamber and the third chamber, respectively, for controlling the flow of liquid.

[0009] Preferably, the height of the first sphere is lower than the height of the second sphere.

[0010] Preferably, the bottom of the fixture is symmetrically hinged with connecting rods, and a connecting component is provided between the bottom of the connecting rod and the inner side of the third chamber.

[0011] Preferably, the connecting assembly includes a lever, a movable block, a through hole, a round rod, and a sliding groove. The sliding groove is horizontally arranged at the bottom inner side of the third chamber. The movable block is slidably disposed in the sliding groove. The through hole is horizontally disposed in the middle of the movable block. The round rod is installed inside the sliding groove and passes through the through hole. The bottom of the connecting rod is hinged to the movable block.

[0012] Preferably, infusion tubes are symmetrically arranged on both sides of the third chamber, one end of each infusion tube extends into the inner side of the third chamber, and an adjustment structure is provided at the end of the infusion tube inside the third chamber.

[0013] Preferably, the adjustment structure includes a bracket, a partition, a return spring, a guide rod, a baffle, a track, a slider, a guide hole, and a notch. Two notches are symmetrically provided at the end of the infusion tube, and the partition slides along the direction of the notches.

[0014] Preferably, the guide hole is opened at one end of the partition, the bracket is installed on the outside of the end of the infusion tube, the guide rod is installed on the bracket, and one end of the guide rod extends to the inside of the guide hole. A return spring is sleeved on the outside of the guide rod, and the return spring is located between the bracket and the partition.

[0015] Preferably, the baffle is mounted on the partition, the lever is fixedly mounted on the upper end of the slider, and the partition and the lever cooperate with each other.

[0016] Preferably, a slider is fixedly installed on one side of the partition, and a track is symmetrically opened on the inner side of the infusion tube. The slider is slidably disposed on the inner side of the track, and the track and the slider cooperate with each other.

[0017] The pump body maintenance device proposed in this invention has the following advantages: the pump body maintenance device provides a symmetrical limiting structure below the diaphragm to prevent the diaphragm from overstretching during operation, and avoids the problem of decreased elasticity of the diaphragm due to overstretching.

[0018] Secondly, while limiting the position, intermittently add corrosion inhibitors or stabilizers into the pump body to slow down the corrosive effect of chemicals on the diaphragm and extend the service life of the pump body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a pump body maintenance device proposed in this invention.

[0020] Figure 2 This is an enlarged view of the connection assembly of a pump body maintenance device proposed in this invention.

[0021] Figure 3This is an enlarged view of part A of a pump body maintenance device proposed in this invention.

[0022] Figure 4 This is a cross-sectional view of the adjustment structure of a pump body maintenance device proposed in this invention.

[0023] Figure 5 This is an enlarged view of part B of a pump body maintenance device proposed in this invention.

[0024] Figure 6 This is a top view of the adjustment structure of a pump body maintenance device proposed in this invention.

[0025] In the diagram: 1. Cylinder; 2. Telescopic rod; 3. First chamber; 4. Diaphragm; 5. Fixer; 6. Connector; 7. Infusion tube; 8. Adjustment structure; 801. Bracket; 802. Partition; 803. Return spring; 804. Guide rod; 805. Baffle; 806. Track; 807. Slider; 808. Guide hole; 809. Notch; 9. Connecting assembly; 901. Paddle; 902. Moving block; 903. Through hole; 904. Round rod; 905. Slide groove; 10. Connecting rod; 11. Housing; 12. Second chamber; 13. First sphere; 14. Third chamber; 15. Second sphere; 16. Outlet; 17. Inlet. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1

[0028] During this process, the diaphragm 4 continuously bulges upward and dents downward, which can cause the diaphragm 4 to overstretch. Over time, this will reduce the elasticity of the diaphragm 4 and directly shorten its service life.

[0029] Reference Figure 1 - A pump body maintenance device, comprising a cylinder 1, a telescopic rod 2, a first chamber 3, a housing 11, a second chamber 12, a third chamber 14, a liquid outlet 16, and a liquid inlet 17:

[0030] The first chamber 3, the second chamber 12 and the third chamber 14 are located inside the shell 11 and are interconnected. The cylinder 1 is installed on the top of the shell 11. A diaphragm 4 is horizontally fixedly installed in the middle of the first chamber 3. A retainer 5 is installed in the middle of the diaphragm 4. The telescopic rod 2 connected to the inner wall of the cylinder 1 extends into the first chamber 3 and is fixedly connected to the retainer 5.

[0031] Cylinder 1 drives telescopic rod 2 to reciprocate longitudinally. Through the fixing device 5 connected to the bottom, it causes diaphragm 4 to bulge upward or sink downward. When diaphragm 4 bulges upward, the first ball 13 rises upward, opening the inlet 17 and allowing liquid to enter the inside of the pump body. At the same time, the second ball 15 falls down, blocking the outlet 16. When diaphragm 4 sinks downward, the first ball 13 falls down, closing the inlet 17 and preventing liquid from entering the inside of the pump body. At the same time, the second ball 15 rises up, opening the outlet 16 and realizing the output of liquid.

[0032] The second chamber 12 and the third chamber 14 are respectively located on both sides of the lower end of the shell 11. The liquid outlet 16 is opened on one side of the third chamber 14, and the liquid inlet 17 is opened on one side of the second chamber 12. The first ball 13 and the second ball 15 are respectively located inside the second chamber 12 and the third chamber 14, and are used to control the flow of liquid.

[0033] The height of the first sphere 13 is lower than the height of the second sphere 15.

[0034] The bottom of the fixture 5 is symmetrically hinged with connecting rods 10. Connecting components 9 are provided between the bottom of the connecting rods 10 and the inner side of the third chamber 14. The connecting components 9 include a paddle 901, a moving block 902, a through hole 903, a round rod 904, and a slide groove 905. The slide groove 905 is horizontally arranged at the bottom of the inner side of the third chamber 14. The moving block 902 is slidably disposed in the slide groove 905. The through hole 903 is horizontally disposed in the middle of the moving block 902. The round rod 904 is installed on the inner side of the slide groove 905 and passes through the through hole 903. The bottom of the connecting rod 10 is hinged to the moving block 902.

[0035] To address this, connecting rods 10 are hinged to both sides of the lower end of connector 6. The bottom of connecting rod 10 is hinged to slider 807. When diaphragm 4 is concave downwards, during the downward pressing of connecting rod 10, moving block 902 slides inside groove 905. In this case, the through hole 903 on the inner side of moving block 902 cooperates with round rod 904, preventing moving block 902 from detaching from the inner side of groove 905. When moving block 902 slides to the other side of groove 905 and comes into contact with the other end of groove 905, the position of moving block 902 cannot move, thus preventing diaphragm 4 from continuing to concave downwards. Similarly, when diaphragm 4 is convex upwards, moving block 902 slides to the other side of groove 905, thus limiting diaphragm 4 and solving the problem of overstretching of diaphragm 4.

[0036] Example 2

[0037] Since the lower end face of the diaphragm 4 is close to the liquid, the liquid usually contains some corrosive chemicals. When these corrosive chemicals come into contact with the diaphragm 4, they will corrode the diaphragm 4, which will then harden due to corrosion, resulting in a shortened service life.

[0038] refer to Figure 5-6 The difference between this embodiment and embodiment 1 is that infusion tubes 7 are symmetrically arranged on both sides of the third chamber 14. One end of the infusion tube 7 extends to the inside of the third chamber 14. An adjustment structure 8 is provided at the end of the infusion tube 7 inside the third chamber 14. The adjustment structure 8 includes a bracket 801, a partition 802, a reset spring 803, a guide rod 804, a baffle 805, a track 806, a slider 807, a guide hole 808, and a notch 809. Two notches 809 are symmetrically opened at the end of the infusion tube 7. The partition 802 slides along the direction of the notch 809.

[0039] A guide hole 808 is opened at one end of the partition 802. The bracket 801 is installed on the outside of the end of the infusion tube 7. The guide rod 804 is installed on the bracket 801, and one end of the guide rod 804 extends to the inside of the guide hole 808. A return spring 803 is sleeved on the outside of the guide rod 804. The return spring 803 is located between the bracket 801 and the partition 802.

[0040] The baffle 805 is installed on the partition 802, and the lever 901 is fixedly installed on the upper end of the slider 807. The partition 802 and the lever 901 cooperate with each other.

[0041] A slider 807 is fixedly installed on one side of the partition 802, and a track 806 is symmetrically opened on the inner side of the infusion tube 7. The slider 807 is slidably disposed on the inner side of the track 806, and the track 806 and the slider 807 cooperate with each other.

[0042] During this process, preservatives or stabilizers are injected into the infusion tube 7. When the moving block 902 moves to the side close to the infusion tube 7, the lever 901 at the upper end of the moving block 902 moves the baffle 805 on the partition 802 at the lower end of the infusion tube 7, thereby applying a pushing force to one side to the partition 802, pushing the partition 802 to one side, so that a gap is created between the partition 802 and the infusion tube 7. In this way, the preservatives or stabilizers located inside the infusion tube 7 flow into the inner side of the pump body. This can neutralize the chemical substances located inside the pump body, and the cross-sectional area of ​​the infusion tube 7 can be designed according to the flow rate of the pump body.

[0043] During the return stroke of the moving block 902, the baffle 805 and the lever 901 separate from each other. Under the action of the return spring 803, the partition 802 is pushed back to its initial position. During this process, the partition 802 re-seals the bottom of the infusion tube 7, enabling the intermittent injection of the preservative or stabilizer, thus saving materials. At the same time, the partition 802 relies on the rails 806 and sliders 807 on both sides to prevent it from deviating from the course during movement.

[0044] The working principle of this device is as follows:

[0045] Cylinder 1 drives telescopic rod 2 to reciprocate longitudinally. Through the fixing device 5 connected to the bottom, it causes diaphragm 4 to bulge upward or sink downward. When diaphragm 4 bulges upward, the first ball 13 rises upward, opening the inlet 17 and allowing liquid to enter the inside of the pump body. At the same time, the second ball 15 falls down, blocking the outlet 16. When diaphragm 4 sinks downward, the first ball 13 falls down, closing the inlet 17 and preventing liquid from entering the inside of the pump body. At the same time, the second ball 15 rises up, opening the outlet 16 and realizing the output of liquid.

[0046] During this process, the diaphragm 4 continuously bulges upward and dents downward, which can cause the diaphragm 4 to overstretch. Over time, this will reduce the elasticity of the diaphragm 4 and directly shorten its service life.

[0047] Therefore, connecting rods 10 are hinged to both sides of the lower end of connector 6. The bottom of connecting rod 10 is hinged to slider 807. When diaphragm 4 is concave downward, during the downward pressing of connecting rod 10, moving block 902 slides inside slide groove 905. In this case, the through hole 903 opened inside moving block 902 cooperates with round rod 904, so that moving block 902 will not detach from inside slide groove 905. When moving block 902 slides to the other side of slide groove 905 and comes into contact with the other end of slide groove 905, the position of moving block 902 cannot move, and thus diaphragm 4 cannot continue to concave downward. Similarly, when diaphragm 4 is convex upward, when moving block 902 slides to the other side of slide groove 905, it also achieves the limiting effect on diaphragm 4, thereby solving the problem of diaphragm 4 overstretching.

[0048] Since the lower end face of the diaphragm 4 is close to the liquid, the liquid usually contains some corrosive chemicals. When these corrosive chemicals come into contact with the diaphragm 4, they will corrode the diaphragm 4, which will then harden due to corrosion, resulting in a shortened service life.

[0049] During this process, a preservative or stabilizer is injected into the infusion tube 7. When the moving block 902 moves to the side closest to the infusion tube 7, the lever 901 at the upper end of the moving block 902 actuates the baffle 805 on the lower end of the partition 802 of the infusion tube 7, thereby applying a lateral pushing force to the partition 802 and moving it to one side. This creates a gap between the partition 802 and the infusion tube 7, allowing the preservative or stabilizer located inside the infusion tube 7 to flow into the inner side of the pump body. This neutralizes the chemical substances located inside the pump body. Meanwhile, the cross-sectional area of ​​the infusion tube 7 can be designed according to the flow rate of the pump body. During the return of the moving block 902, the baffle 805 and the lever 901 separate from each other. Under the action of the return spring 803, the partition 802 is pushed back to the initial position. During this process, the partition 802 re-seals the bottom of the infusion tube 7, realizing the intermittent injection of the anticorrosive agent or stabilizer, thus saving materials. At the same time, the partition 802 relies on the rails 806 and sliders 807 on both sides to ensure that it does not deviate from the course during the movement.

[0050] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A pump body maintenance device, comprising a cylinder (1), a telescopic rod (2), a first chamber (3), a housing (11), a second chamber (12), a third chamber (14), an outlet (16), and an inlet (17), characterized in that: The first chamber (3), the second chamber (12) and the third chamber (14) are located inside the shell (11) and are interconnected. The cylinder (1) is installed on the top of the shell (11). A diaphragm (4) is horizontally fixed in the middle of the first chamber (3). A retainer (5) is installed in the middle of the diaphragm (4). The telescopic rod (2) connected to the inner wall of the cylinder (1) extends into the first chamber (3) and is fixedly connected to the retainer (5). The second chamber (12) and the third chamber (14) are respectively located on both sides of the lower end of the shell (11). The liquid outlet (16) is opened on one side of the third chamber (14), and the liquid inlet (17) is opened on one side of the second chamber (12). The first sphere (13) and the second sphere (15) are respectively located inside the second chamber (12) and the third chamber (14) to control the flow of liquid. The bottom of the fixture (5) is symmetrically hinged with connecting rods (10), and connecting components (9) are provided between the bottom of the connecting rods (10) and the inner side of the third chamber (14). The connecting assembly (9) includes a paddle (901), a movable block (902), a through hole (903), a round rod (904), and a slide groove (905). The slide groove (905) is horizontally arranged at the bottom of the inner side of the first chamber (3). The movable block (902) is slidably disposed in the slide groove (905). The through hole (903) is horizontally disposed in the middle of the movable block (902). The round rod (904) is installed on the inner side of the slide groove (905). The round rod (904) passes through the through hole (903), and the bottom of the connecting rod (10) is hinged to the movable block (902). Infusion tubes (7) are symmetrically arranged on both sides of the first chamber (3). One end of the infusion tube (7) extends to the inside of the first chamber (3). An adjustment structure (8) is provided at the end of the infusion tube (7) inside the first chamber (3). The adjustment structure (8) includes a bracket (801), a partition (802), a return spring (803), a guide rod (804), a baffle (805), a track (806), a slider (807), a guide hole (808), and a notch (809). Two notches (809) are symmetrically provided at the end of the infusion tube (7), and the partition (802) slides along the direction of the notch (809). The guide hole (808) is opened at one end of the partition (802), the bracket (801) is installed on the outside of the end of the infusion tube (7), the guide rod (804) is installed on the bracket (801), and one end of the guide rod (804) extends to the inside of the guide hole (808). A return spring (803) is sleeved on the outside of the guide rod (804), and the return spring (803) is located between the bracket (801) and the partition (802). The baffle (805) is mounted on the partition (802), and the paddle (901) is fixedly mounted on the upper end of the slider (807). The partition (802) and the paddle (901) cooperate with each other.

2. The pump body maintenance device according to claim 1, characterized in that, The height of the first sphere (13) is lower than the height of the second sphere (15).

3. The pump body maintenance device according to claim 2, characterized in that, A slider (807) is fixedly installed on one side of the partition (802), and a track (806) is symmetrically opened on the inner side of the infusion tube (7). The slider (807) is slidably arranged on the inner side of the track (806), and the track (806) and the slider (807) cooperate with each other.

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