A peristaltic pump for precise dosing of a pool circulating water agent

Abstract

The present application relates to peristaltic pump device field, especially a kind of peristaltic pump for pool circulating water medicament precision dosing, including shell, the shell one end is equipped with power connection seat, the shell other end is equipped with connecting seat, the shell inside both sides are equipped with stepper motor, the stepper motor drive end is all fixedly connected with driving shaft, the connecting seat end away from shell is all equipped with pump body, the pump body end is equipped with end cover, the pump body middle part is equipped with installation port, the installation port inboard is provided with hose, the pump body both ends are rotatably connected with connector, the connector far away from one end is all fixedly connected with connecting port, the present application is by controlling the angle of both sides stepper motor staggered realization single output quantity preliminary control, then by servo motor drive pressure wheel contraction / dilation adjustment hose compression amount, further refine delivery precision, can be accurately adapted medicament dosing amount according to actual demand.

Description

Technical Field

[0001] This invention relates to the field of peristaltic pump equipment, and more particularly to a peristaltic pump for precise dosing of chemicals in circulating water of a water tank. Background Technology

[0002] In the field of circulating water purification, traditional chemical dosing equipment generally suffers from numerous technical drawbacks, making it difficult to meet the requirements for precise and stable dosing. Conventional peristaltic pumps often employ a single-sided drive or fixed pressure roller extrusion structure, leaving the hose under constant localized stress, which easily leads to problems such as unilateral wear and uneven wall thickness. This not only results in frequent hose replacements and high maintenance costs but also interrupts chemical dosing due to downtime for replacements, affecting the continuity of circulating water purification. Furthermore, traditional equipment has a single method for adjusting the delivery rate, only allowing for rough control of the dosing amount by adjusting the motor speed, which cannot accurately match different water qualities and... For the same volume of water tank, the demand for chemicals often results in either overdosing, leading to waste, or underdosing, resulting in substandard water purification. In addition, some peristaltic pumps lack stable support for the hose, which can cause hose misalignment and uneven compression during delivery, leading to flow interruption or excessive pulsation. Furthermore, most of these devices operate in a single mode, making it difficult to adapt to diverse scenarios such as intermittent delivery and rapid dosing of large volumes, thus limiting the overall efficiency and quality of water tank circulating water purification. Therefore, we propose a peristaltic pump for precise dosing of chemicals in water tank circulating water to solve the aforementioned problems. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the prior art by proposing a peristaltic pump for precise dosing of chemicals in circulating water of a water tank.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, comprising a housing, an electrical connector mounted at one end of the housing, a connecting seat mounted at the other end of the housing, stepper motors mounted on both sides inside the housing, each stepper motor drive end fixedly connected to a drive shaft, a pump body mounted at the end of the connecting seat away from the housing, an end cap mounted at the end of the pump body, an installation port opened in the middle of the pump body, a flexible hose provided inside the installation port, connectors rotatably connected to both ends of the pump body, and a connecting port fixedly connected to the opposite ends of the connectors. The connector has toothed grooves on its outer periphery, and a drive gear is meshed with one side of each toothed groove. The end of each connector away from the connection port has a connection port. Both ends of the hose are connected to the connectors on both sides through the connection ports. Elastic bands are provided on both sides of the hose, and electrorheological fluid is provided inside each elastic band. A connecting post is provided in the middle of the inner side of each elastic band. An angle bracket is fixedly connected to both ends of each connecting post. A connecting sleeve is fixedly connected to the middle of each angle bracket near the connecting seat. The connecting sleeve is sleeved and installed on the end of the drive shaft. The end of each connecting sleeve penetrates the end of the pump body and is rotatably connected to the pump body.

[0005] Preferably, a battery storage base is installed in the middle of the corner bracket on the side of the connecting column away from the connecting sleeve. Multiple conductive sheets are fixedly connected to the outer periphery of each battery storage base, and the end of each conductive sheet away from the battery storage base is connected to an elastic band.

[0006] Preferably, each of the connecting columns has a uniformly distributed fixing block fixedly connected to its outer periphery, and each fixing block has a guide column fixedly connected to its upper and lower parts at the end away from the connecting column.

[0007] Preferably, a connecting block is provided on the side of the fixing block away from the connecting column, and a pressure roller is installed on the side of the connecting block away from the fixing block. The pressure rollers are all located inside the elastic band.

[0008] Preferably, the end of each guide post away from the fixing block is slidably connected to the connecting block, and each fixing block is rotatably connected to a threaded rod in the middle. The threaded rod is threadedly connected to the connecting block, and the end of the threaded rod away from the connecting block passes through the side wall of the connecting post.

[0009] Preferably, each of the threaded rods has a bevel gear fixedly connected to the outer periphery of one end inside the connecting column, a servo motor is installed inside each connecting column, a rotating shaft is fixedly connected to the drive end of each servo motor, a toothed column is fixedly connected to the outer periphery of each rotating shaft, and an annular groove is formed in the middle of the outer periphery of each toothed column.

[0010] Preferably, all the bevel gears are meshed with the ring groove, all the ends of the pressure rollers are fixedly connected to a fixed shaft, all the fixed shafts are fixedly connected to a slider, and the ends of the sliders away from the fixed shafts are slidably connected inside the angle bracket.

[0011] Preferably, the pump body has cavities on both sides, and the elastic bands are all located inside the cavities.

[0012] Preferably, an opening is provided in the middle of both sides of the mounting port, and one side of the elastic band is located inside the opening.

[0013] Preferably, an electric motor is installed at one end of the central shaft of each drive gear, and both the drive gear and the electric motor are installed inside the pump body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Existing circulating water chemical dosing equipment often suffers from problems due to its single method of adjusting the delivery volume, making it difficult to accurately match the chemical requirements of different water qualities and pool volumes. This can easily lead to overdosing, resulting in chemical waste, or underdosing, affecting the purification effect. The peristaltic pump in this invention overcomes this limitation through a "two-stage adjustment" mechanism: first, the output volume is initially adjusted by controlling the staggered angles of the stepper motors on both sides; then, the compression of the hose is adjusted by using a servo motor to drive the pressure roller to contract / expand, further refining the delivery accuracy. The amount of chemical dosing can be precisely adapted to actual needs, avoiding the problem of unstable water purification effect caused by the coarse adjustment of traditional equipment.

[0016] 2. Traditional peristaltic pumps often employ a single-sided drive or fixed pressure roller extrusion structure, resulting in the hose being under constant localized stress. This leads to unilateral wear and uneven wall thickness, causing short hose lifespan and frequent replacements. This not only increases maintenance costs but also disrupts the continuity of water circulation and purification in the pool due to downtime for replacements. The peristaltic pump in this invention extends hose lifespan through a dual-protection design: firstly, it utilizes dual stepper motors working alternately to alternate stress on both sides of the hose, preventing long-term localized wear; secondly, it uses an electric motor to drive the hose and connector to rotate, dynamically adjusting the extrusion stress point and achieving uniform wear of the hose as a whole. This significantly reduces the frequent replacements caused by excessive localized aging of the hose in traditional equipment, lowering maintenance costs and ensuring continuous equipment operation.

[0017] 3. Addressing the issues of existing peristaltic pumps, which often suffer from poor stability during delivery due to a lack of stable support for the hose, leading to hose misalignment, uneven compression, and excessive pulsation, and the limitations of traditional equipment with its single operating mode, making it unsuitable for various scenarios such as intermittent delivery and rapid high-flow-rate dosing, this invention solves the stability problem through the combination of an elastic band and an electrorheological fluid: during operation, the electrorheological fluid is in a near-solid state, providing stable support for the hose and preventing misalignment or uneven compression; when adjusting the pressure roller, the electrorheological fluid returns to a liquid state, adapting to deformation requirements and ensuring a smooth, pulsation-free delivery process. Furthermore, the equipment supports multiple modes, including independent operation with a single motor and synchronous operation with dual motors, allowing for flexible switching based on the real-time needs of water purification, thus overcoming the limitations of traditional equipment in terms of limited adaptability and poor stability. Attached Figure Description

[0018] Figure 1 This is a frontal three-dimensional structural diagram of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0019] Figure 2 This is a schematic diagram of the pump body of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0020] Figure 3 This is a partial structural diagram of the drive shaft of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0022] Figure 5 This is a partial structural diagram of the connecting block of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0023] Figure 6 This is a schematic diagram of the internal structure of the connecting column of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0024] Figure 7 This is a partial structural diagram of the bevel gear of a peristaltic pump for precise dosing of chemicals in circulating water of a water tank, according to the present invention.

[0025] 101. Housing; 102. Electrical socket; 103. Connection port; 104. End cover; 105. Pump body; 106. Mounting port; 107. Elastic band; 108. Opening; 109. Connecting seat; 110. Drive shaft; 111. Angle bracket; 112. Connecting sleeve; 113. Gear groove; 114. Cavity; 115. Fixed shaft; 116. Slider; 117. Hose; 118. Connector; 119. Drive gear; 120. Connecting block; 121. Pressure roller; 122. Conductive sheet; 123. Energy storage base; 124. Connection port; 125. Threaded rod; 126. Rotating shaft; 127. Fixed block; 128. Annular groove; 129. Gear column; 130. Guide column; 131. Servo motor; 132. Connecting column; 133. Bevel gear. Detailed Implementation

[0026] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0027] like Figures 1-7 The peristaltic pump shown is used for precise dosing of chemicals in circulating water of a water tank. It includes a housing 101, a power connector 102 installed at one end of the housing 101, a connecting seat 109 installed at the other end of the housing 101, stepper motors installed on both sides inside the housing 101, and drive shafts 110 fixedly connected to the drive ends of the stepper motors. A pump body 105 is installed at the end of the connecting seat 109 away from the housing 101. An end cap 104 is installed at the end of the pump body 105. A connecting post 132 is provided in the middle of the inner side of the elastic band 107. An angle bracket 111 is fixedly connected to both ends of the connecting post 132. A connecting sleeve 112 is fixedly connected to the middle of the angle bracket 111 near the connecting seat 109. The connecting sleeve 112 is sleeved and installed at the end of the drive shaft 110. The end of the connecting sleeve 112 passes through the end of the pump body 105 and is rotatably connected to the pump body 105.

[0028] Furthermore, in practical implementation, when adding chemicals to the water tank for purification, a peristaltic pump can be used to precisely dispense the purifying agent. During operation, a stepper motor inside the housing 101 drives the drive shaft 110 to rotate, which in turn drives the connecting sleeve 112 to rotate synchronously. The connecting sleeve 112, through its fixed bracket 111, drives the connecting column 132 to rotate synchronously. The connecting column 132 and the bracket 111 then drive the surrounding pressure rollers 121 to rotate synchronously. The deflection of the pressure rollers 121 squeezes the hose 117 on one side, thus transferring the purifying agent from one end of the hose 117 to the other, achieving the delivery and dispensing of the purifying agent. Two stepper motors are installed side-by-side inside the housing 101. In actual use, one stepper motor can be controlled to work, or two stepper motors can be controlled to work synchronously. By making the stepper motors on both sides work alternately, the pressure rollers 121 and elastic bands 107 on both sides of the hose 117 can rotate alternately, achieving uninterrupted delivery. Alternating work can prevent the hose 117 from being subjected to force on one side for a long time, which would cause local friction and premature aging and affect its service life. When the two stepper motors work synchronously, the angle brackets 111 and pressure rollers 121 on both sides can be controlled to rotate at the same speed, but at staggered angles, achieving intermittent staggering of the pressure rollers 121 on both sides, thereby synchronously squeezing the hose 117. By adjusting the interval angle between the pressure rollers 121 on both sides, the dosage of medicine output per delivery can be precisely adjusted, which is beneficial to the actual medicine delivery and dispensing work.

[0029] The pump body 105 has an installation port 106 in the middle, and a hose 117 is provided inside the installation port 106. Both ends of the pump body 105 are rotatably connected to connectors 118. The ends of the connectors 118 that are far apart are fixedly connected to connection ports 103. The outer periphery of the connectors 118 is provided with toothed grooves 113. One side of each toothed groove 113 is meshed with a drive gear 119. One end of the shaft of each drive gear 119 is equipped with an electric motor. Both the drive gear 119 and the electric motor are installed inside the pump body 105. The ends of the connectors 118 that are far apart from the connection ports 103 are provided with connection ports 124. Both ends of the hose 117 are connected to the connectors 118 on both sides through the connection ports 124 respectively.

[0030] Furthermore, in specific implementation, before each operation, the electric motor inside the pump body 105 can drive the drive gear 119 to rotate synchronously. The drive gear 119 can drive the connector 118 and the hose 117 to rotate through the meshing tooth groove 113, thereby adjusting the squeezing force point of the hose 117 and achieving uniform force on the hose 117.

[0031] Among them, elastic bands 107 are provided on both sides of the hose 117, and electrorheological fluid is provided inside the elastic bands 107. A storage base 123 is installed in the middle of the corner bracket 111 on the side of the connecting column 132 away from the connecting sleeve 112. Multiple conductive plates 122 are fixedly connected to the outer periphery of the storage base 123. The end of the conductive plate 122 away from the storage base 123 is connected to the elastic band 107. An opening 108 is opened in the middle of both sides of the mounting port 106. One side of the elastic band 107 is located inside the opening 108. A cavity 114 is provided on both sides of the pump body 105. The elastic band 107 is located inside the cavity 114.

[0032] Furthermore, in specific implementation, the energy storage base 123 can apply an electric field to the inside of the elastic band 107 using the conductive sheet 122, thereby changing the electrorheological fluid inside the elastic band 107 from a liquid state to a near-solid state. During operation, the elastic band 107 provides support and limit for the hose 117. Specifically, when adjusting the position of the pressure roller 121, the energy storage base 123 stops working, so that the elastic band 107 is in a liquid state, which facilitates the deformation of the elastic band 107. After the deformation is adjusted, the energy storage base 123 continues to work, changing the electrorheological fluid inside the elastic band 107 from a liquid state to a near-solid state, so that it can work normally.

[0033] Each connecting post 132 has a uniformly distributed fixing block 127 fixedly connected to its outer periphery. Each fixing block 127 has a guide post 130 fixedly connected to its upper and lower ends at the ends away from the connecting post 132. Each fixing block 127 has a connecting block 120 on its side away from the connecting post 132, and a pressure roller 121 is installed on the side of each connecting block 120 away from the fixing block 127. The pressure rollers 121 are all located inside the elastic band 107. Each guide post 130 has a slidably connected end to the connecting block 120 at its end away from the fixing block 127. Each fixing block 127 has a threaded rod 125 rotatably connected to its center, and the threaded rod 125 is threadedly connected to the connecting block 120. The threaded rod 125 is located away from the connecting block 127. One end of each of the 0 passes through the side wall of the connecting column 132. The outer periphery of the threaded rod 125 located inside the connecting column 132 is fixedly connected to a bevel gear 133. The connecting column 132 is equipped with a servo motor 131. The drive end of the servo motor 131 is fixedly connected to a rotating shaft 126. The outer periphery of the rotating shaft 126 is fixedly connected to a toothed column 129. The middle of the outer periphery of the toothed column 129 is provided with an annular groove 128. The bevel gear 133 is meshed with the annular groove 128. The end of the pressure roller 121 is fixedly connected to a fixed shaft 115. The outer periphery of the fixed shaft 115 is fixedly connected to a slider 116. The end of the slider 116 away from the fixed shaft 115 is slidably connected inside the corner bracket 111.

[0034] Furthermore, in specific implementation, the servo motor 131 can be activated, which drives the rotating shaft 126 to rotate. The rotating shaft 126 drives the gear column 129 to rotate. The annular groove 128 on the gear column 129 drives the multiple meshing bevel gears 133 to rotate synchronously. The bevel gears 133 drive the threaded rods 125 fixed to them to rotate synchronously. Each threaded rod 125 drives the connected connecting block 120 to move, which in turn drives the pressure roller 121 fixed at the end to contract or expand synchronously. This, in turn, drives the elastic band 107 on the outside to expand and contract synchronously. By adjusting the position of the pressure roller 121, the compression of the hose 117 can be adjusted, thereby further adjusting the single delivery volume of the hose 117 and achieving precise delivery.

[0035] Working principle:

[0036] When purifying a water tank with chemicals, a peristaltic pump can precisely dispense the purifying agent. In operation, a stepper motor inside the housing 101 drives the drive shaft 110 to rotate. The drive shaft 110 then drives the connecting sleeve 112 to rotate synchronously. The connecting sleeve 112, through its fixed bracket 111, drives the connecting column 132 to rotate synchronously. The connecting column 132 and the bracket 111 then drive the surrounding pressure rollers 121 to rotate synchronously. The deflection of the pressure rollers 121 squeezes the hose 117 on one side, thus forcing the purifying agent from one end of the hose 117 to the other, achieving the dispensing of the purifying agent. The housing 101 contains parallel... Equipped with two stepper motors, users can control one or both motors to work simultaneously. By alternating the operation of the stepper motors on both sides, the pressure rollers 121 and elastic band 107 on both sides of the hose 117 can rotate alternately, achieving uninterrupted delivery. This alternating operation prevents the hose 117 from being subjected to excessive force on one side for extended periods, which could lead to premature localized friction and aging, thus affecting its service life. When the two stepper motors work synchronously, users can control the angle brackets 111 and pressure rollers 121 on both sides to rotate at the same speed but at staggered angles, achieving intermittent staggering of the pressure rollers 121 on both sides. This allows for synchronous compression of the hose 117. By adjusting the interval angle between the pressure rollers 121 on both sides, the following can be achieved: Precise adjustment of the single-output drug dosage is beneficial for actual drug delivery and administration. In practice, the servo motor 131 is activated, which drives the rotating shaft 126 to rotate. The rotating shaft 126 drives the gear column 129 to rotate, and the annular groove 128 on the gear column 129 drives multiple meshing bevel gears 133 to rotate synchronously. The bevel gears 133 drive the threaded rods 125 fixed to them to rotate synchronously. Each threaded rod 125 drives the connected connecting block 120 to move, which in turn drives the pressure roller 121 fixed at the end to contract or expand synchronously. This, in turn, drives the outer elastic band 107 to expand and contract synchronously. By adjusting the pressure roller 121... Position 1 allows for adjustment of the compression of the hose 117, thereby enabling further adjustment of the single delivery volume of the hose 117 for precise dispensing. In practical use, the energy storage base 123 applies an electric field to the inside of the elastic band 107 via the conductive sheet 122, thus changing the electrorheological fluid inside the elastic band 107 from a liquid to a near-solid state. During operation, the elastic band 107 provides support and limitation for the hose 117. Specifically, when adjusting the position of the pressure roller 121, the energy storage base 123 stops working, keeping the elastic band 107 in a liquid state to facilitate its deformation. After the deformation is adjusted, the energy storage base 123 resumes operation, changing the electrorheological fluid inside the elastic band 107 from a liquid to a near-solid state, allowing it to function normally. Furthermore…Before each operation, the electric motor inside the pump body 105 drives the drive gear 119 to rotate synchronously. The drive gear 119, through its meshing tooth groove 113, drives the connector 118 and the hose 117 to rotate, thereby adjusting the pressure point of the hose 117 and achieving uniform force distribution on the hose 117.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A peristaltic pump for precise dosing of a water pool circulating water agent, comprising a housing (101), characterized in that: The shell (101) one end is mounted with the electric seat (102), the shell (101) other end is mounted with the connecting seat (109), both sides in the shell (101) are mounted with the step motor, the step motor drive end is fixedly connected with the drive shaft (110), the connecting seat (109) is installed with the pump body (105) away from the shell (101) one end, the pump body (105) end is installed with the end cover (104), the pump body (105) middle part is provided with the installation mouth (106), the installation mouth (106) inboard is provided with the hose (117), the pump body (105) both ends are rotatably connected with the connector (118), the connector (118) is fixedly connected with the connecting port (103) away from one end, the connector (118) is provided with the gear slot (113) on the periphery, the gear slot (113) one side is engaged with the driving gear (119), the connector (118) is provided with the connecting port (124) away from the connecting port (103) one end, the hose (117) both ends are connected with the connector (118) on both sides through the connecting port (124), the hose (117) both sides are provided with the elastic band (107), the elastic band (107) is provided with the electrorheological fluid in the inside, the elastic band (107) inboard middle part is provided with the connecting column (132), the connecting column (132) both ends are fixedly connected with the angle frame (111), the angle frame (111) middle part close to the connecting seat (109) one side is fixedly connected with the connecting sleeve (112), the connecting sleeve (112) is installed in the drive shaft (110) end part, the connecting sleeve (112) end part penetrates the pump body (105) end part, the connecting sleeve (112) is rotatably connected with the pump body (105), the angle frame (111) middle part of the connecting column (132) side away from the connecting sleeve (112) is installed with the storage seat (123), the storage seat (123) periphery is fixedly connected with a plurality of conductive sheets (122), the conductive sheet (122) end away from the storage seat (123) is connected with the elastic band (107), the connecting column (132) periphery middle part is fixedly connected with the evenly distributed fixed block (127), the fixed block (127) end away from the connecting column (132) upper and lower parts are fixedly connected with the guide column (130), the fixed block (127) side away from the connecting column (132) is provided with the connecting block (120), the connecting block (120) side away from the fixed block (127) is installed with the press wheel (121), the press wheel (121) is arranged in the elastic band (107) inboard, the guide column (130) end away from the fixed block (127) is slidably connected with the connecting block (120), the fixed block (127) middle part is rotatably connected with the threaded rod (125), the threaded rod (125) is threadedly connected with the connecting block (120), the threaded rod (125) end away from the connecting block (120) penetrates the connecting column (132) side wall,The threaded rod (125) is provided with bevel gears (133) on the outer periphery of one end inside the connecting column (132), the connecting column (132) is internally provided with servo motors (131), the driving end of the servo motor (131) is fixedly connected with a rotating shaft (126), the rotating shaft (126) is fixedly connected with a toothed column (129) on the outer periphery, the outer periphery of the toothed column (129) is provided with a ring groove (128) in the middle, the bevel gears (133) are meshed with the ring grooves (128), the end of the press wheel (121) is fixedly connected with a fixed shaft (115), the outer periphery of the fixed shaft (115) is fixedly connected with a sliding block (116), the end, away from the fixed shaft (115), of the sliding block (116) is slidingly connected inside the angle support (111).

2. The peristaltic pump for precise dosing of a water pool circulating agent according to claim 1, characterized in that: Both sides of the pump body (105) are provided with cavities (114), and the elastic belts (107) are arranged inside the cavities (114).

3. The peristaltic pump for precise dosing of a water pool circulating agent according to claim 1, characterized in that: The middle part of both sides of the mounting port (106) is provided with an opening (108), and one side of the elastic belt (107) is arranged inside the opening (108).

4. The peristaltic pump for precise dosing of a water pool circulating agent according to claim 1, characterized in that: The middle part of the driving gear (119) is provided with an electric motor, and the driving gear (119) and the electric motor are arranged inside the pump body (105).

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