High-flow durable constant flow pump

Abstract

The utility model relates to a high-flow durable constant flow pump which comprises a pump head and a pump body fixedly connected with the pump head, and the pump body comprises a piston seat fixedly connected with the pump head and a driving seat fixedly installed on the piston seat. A piston mechanism is arranged in the piston seat; a driving mechanism for driving the piston mechanism to move in a reciprocating mode is arranged in the driving base, the pump head comprises a connecting base fixedly installed on the piston base and a pump base fixedly installed on the connecting base, and a circular-arc-shaped liquid outlet groove and a circular-arc-shaped liquid inlet groove are coaxially formed in the pump base. The pump base is provided with a liquid inlet pipe connected with the liquid inlet groove in a penetrating mode and a liquid outlet pipe connected with the liquid outlet groove in a penetrating mode. The liquid outlet groove and the liquid inlet groove are arranged in an arc shape. After the pump head rotates by a certain angle, the liquid discharge pipe and the liquid inlet pipe are both in through connection with the corresponding liquid outlet groove and the corresponding liquid inlet groove, and use of the constant flow pump is not affected after adjustment.

Description

Technical Field

[0001] The utility model relates to the technical field of constant flow pumps, in particular to a high-flow durable constant flow pump. Background Art

[0002] Constant flow pumps are currently widely used in biochemistry, medicine, chemical industry, environmental protection and other industries, and they play the role of continuously conveying small flow liquids at constant flow and pressure.

[0003] The patent with publication number CN218816821 U discloses a durable constant flow pump, which records "including a driving mechanism, a piston mechanism, a water inlet mechanism and a water outlet mechanism, the piston mechanism is driven by the driving mechanism to perform reciprocating piston motion, and when the reciprocating piston motion is performed, the water flow introduced into the interior of the piston mechanism by the water inlet mechanism is discharged from the water outlet mechanism, characterized in that the driving mechanism includes a motor and a main rotating shaft driven to rotate by the motor, the main rotating shaft is provided with a circumferential track that can rotate with the main rotating shaft, the path of the circumferential track is an inclined circular plane, the circumferential track is provided with a rotating wheel whose outer circumference rotates along the path of the circumferential track, the rotating wheel is transmission-connected to the piston mechanism and can drive the piston mechanism to complete the reciprocating piston motion." At the same time, in the drawings of the specification Figure 4 The specification also states that “a water inlet channel 51 and a water outlet channel 52 are provided in the bus 5. The water inlet end of the water inlet channel 51 is connected to the water inlet mechanism 3, and the water outlet end of the water outlet channel 52 is connected to the water outlet mechanism 4. Each piston mechanism 2 also includes a water inlet pipe 24 and a water outlet pipe 25. In this embodiment, the water inlet ends of the three water inlet pipes 24 are connected through the water inlet channel 51, and the water outlet ends of the three water outlet pipes 25 are also connected through the water outlet channel 52, thereby achieving water inlet to the water inlet mechanism 3 and water outlet to the water outlet mechanism 4.”

[0004] Therefore, the water inlet mechanism and the water outlet mechanism are arranged on the left and right sides of the constant flow pump. At the same time, in the actual application process, when the left and right distance of the space for installing the constant flow pump cannot meet the installation requirements. After the pump head 01 is rotated to a certain angle, the adapter outside the pump head is arranged up and down. Or it is arranged in other directions. Since the water inlet channel and the water outlet channel are both straight-line pipes. When the pump head is rotated to a certain angle, the water inlet pipe 24 and the water outlet pipe 25 cannot be connected with the water inlet channel 51 and the water outlet channel 52. Thereby adjusting the bus 5 to the situation where the constant flow pump cannot be used. Utility Model Content

[0005] In order to solve the above problems, the utility model provides a high-flow durable constant-flow pump.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-flow durable constant-flow pump, comprising a pump head and a pump body fixedly connected to the pump head, the pump body comprising a piston seat fixedly connected to the pump head and a drive seat fixedly mounted on the piston seat; a piston mechanism is arranged in the piston seat; a drive mechanism that drives the piston mechanism to reciprocate is arranged in the drive seat,

[0007] The pump head includes a connecting seat fixedly mounted on the piston seat and a pump seat fixedly mounted on the connecting seat, an arc-shaped liquid outlet groove and a liquid inlet groove are coaxially arranged in the pump seat, a liquid inlet pipe connected to the liquid inlet groove and a liquid outlet pipe connected to the liquid outlet groove are arranged on the pump seat, a liquid inlet pipe connected to the piston mechanism and the liquid inlet groove and a liquid discharge pipe connected to the piston mechanism and the liquid outlet groove are arranged on the connecting seat, and a one-way valve with the same structure and opposite installation directions is installed in the liquid discharge pipe and the liquid inlet pipe.

[0008] As a preferred embodiment of the present invention, the liquid outlet groove and the liquid inlet groove are both C-shaped or annular.

[0009] As a preferred embodiment of the utility model, the driving mechanism includes a driving wheel rotatably installed in the driving seat, and a plurality of driving rods slidably arranged in the driving seat, and a curved groove is provided on the outer circumference of the driving wheel for driving the plurality of driving rods to move alternately in a straight line along the axial direction of the driving wheel; the end of the driving rod is connected to the piston mechanism.

[0010] As a preferred embodiment of the utility model, a connecting piece matching the curved groove is provided at the end of the driving rod; the connecting piece includes a connecting rod fixedly mounted on the top of the driving rod; and a guide wheel rotatably mounted on the connecting rod, clamped in the curved groove and adapted to the curved groove.

[0011] As a preferred embodiment of the present invention, the curved groove is provided with a low point and a high point, and the low point and the high point are arranged relatively to each other according to the axis of the driving wheel; the low point and the high point are connected by a transition of a spiral curved surface.

[0012] As a preferred embodiment of the utility model, the driving seat is fixedly installed with a limit seat with the same number as the driving rod, and a limit slot is arranged in the limit seat. The driving rod is fixedly installed with a limit piece adapted to the limit slot, and the limit piece includes a limit rod fixedly installed on the driving rod, and a limit wheel adapted to the limit slot is rotatably installed on the limit rod.

[0013] As a preferred embodiment of the utility model, the piston mechanism includes a fixed seat fixedly installed in the piston seat, a piston cavity is arranged in the fixed seat, a liquid inlet hole and a liquid discharge hole connected to the piston cavity are arranged at the bottom of the fixed seat, the liquid inlet pipe is connected to the liquid inlet hole; the liquid discharge pipe is connected to the liquid discharge hole; a piston rod is slidably arranged in the piston cavity, one end of the piston rod extends out of the top of the fixed seat and is connected to the driving rod.

[0014] As a preferred embodiment of the utility model, a mounting groove is provided on the end of the piston rod, a receiving hole adapted to the end of the piston rod is provided on the end of the driving rod, and a connecting hole penetrating and connected to the receiving hole is provided on the driving rod; a mounting rod adapted to the mounting groove is inserted into the connecting hole.

[0015] As a preferred embodiment of the utility model, the one-way valve includes a hollow valve body and valve covers arranged at both ends of the valve body, the valve cover is provided with a through hole, a valve core is slidably arranged in the valve body, the valve core includes a sealing column adapted to the through hole, a blind hole recessed along the axial direction is provided in the valve core, a liquid outlet hole communicating with the blind hole is provided on the side of the valve core, a spring is provided in the blind hole, one end of the spring is abutted against the bottom of the blind hole, and the other end is abuttedly connected with the valve cover.

[0016] The beneficial effects of the utility model are as follows: 1. Since the liquid outlet groove and the liquid inlet groove are arranged in an arc shape, when the pump head rotates a certain angle, the liquid discharge pipe and the liquid inlet pipe are connected with the corresponding liquid outlet groove and liquid inlet groove by through-connection, and the adjustment does not affect the use of the constant flow pump.

[0017] 2. The reciprocating piston motion originally realized by the driving mechanism and spring is changed into a design that only needs to use the motor to convert the rotation into linear motion, eliminating the defects of the original spring that may have wear and tear and reduced restoring force, and extending the service life and stability of the constant current pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an explosion schematic diagram of the utility model.

[0019] Figure 2 It is a sectional view of the drive seat of the utility model.

[0020] Figure 3 It is a three-dimensional schematic diagram of the driving mechanism of the utility model.

[0021] Figure 4 It is a cross-sectional view of the piston mechanism of the utility model.

[0022] Figure 5 It is a three-dimensional schematic diagram of the pump seat of the utility model.

[0023] Figure 6 It is a cross-sectional view of the one-way valve of the utility model.

[0024] Figure 7 It is a three-dimensional schematic diagram of the assembly of the utility model.

[0025] Description of the accompanying figures: 01. Pump head, 101. Connecting seat, 102. Pump seat, 103. Liquid outlet groove, 104. Liquid inlet groove, 105. Liquid inlet pipe, 106. Liquid outlet pipe, 107. Liquid inlet pipe, 108. Liquid discharge pipe, 109. Check valve, 110. Valve body, 111. Valve cover, 112. Through hole, 113. Valve core, 114. Sealing column, 115. Blind hole, 116. Liquid outlet hole, 117. Spring,

[0026] 02. Pump body,

[0027] 03. Piston seat, 301. Fixing hole,

[0028] 04. Driving seat, 401. Lower seat body, 402. Upper seat body, 403. Power seat, 405. Driving source, 406. Driving cavity, 407. Transition cavity, 408. Upper mounting hole, 409. Lower mounting hole, 410. Guide hole,

[0029] 05. Driving mechanism, 501 driving wheel, 502. driving rod, 503. curved groove, 504. low point, 505. high point, 506. connecting rod, 507. guide wheel, 508. limiting seat, 509. limiting groove, 510. limiting rod, 511. limiting wheel, 512. containing hole, 513. connecting hole, 514. mounting rod,

[0030] 06. Piston mechanism, 601. Fixed seat, 602. Piston chamber, 603. Piston rod, 604. Liquid inlet hole, 605. Liquid discharge hole, 606. Mounting groove. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example 1, please refer to Figure 1-7 As shown, the utility model is about a high-flow durable constant-flow pump, including a pump head 01 coaxially arranged and a pump body 02 fixedly connected to the pump head 01, the pump body 02 including a piston seat 03 fixedly connected to the pump head 01 and a drive seat 04 fixedly mounted on the piston seat 03. A drive mechanism 05 is arranged in the drive seat 04, and a piston mechanism 06 is arranged in the piston seat 03.

[0033] See also Figure 2 As shown, the driving seat 04 includes a lower seat body 401 and an upper seat body 402 fixedly connected to the lower seat body 401 by fasteners. The lower seat body 401 is fixedly connected to the piston seat 03 by fasteners. A power seat 403 is fixedly installed on the top of the upper seat body 402 by fasteners, and a driving source 405 is fixedly installed on the power seat 403.

[0034] An inwardly recessed driving cavity 406 is provided in the upper seat body 402, a transition cavity 407 coaxially arranged with the driving cavity 406 is provided on the lower seat body 401, an upper mounting hole 408 penetratingly connected with the driving cavity 406 is provided on the top of the upper seat body 402, a lower mounting hole 409 penetratingly connected with the transition cavity 407 and coaxially arranged with the upper mounting hole 408 is provided on the top of the lower seat body 401, and a plurality of guide holes 410 arranged in a circle with the axis of the lower mounting port as the center are penetratingly provided on the top of the lower seat body 401. The present application has four guide holes 410 penetratingly provided on the top of the lower seat body 401. The axis of the guide hole 410 is arranged parallel to the axis of the lower mounting hole 409. In the process of assembling the upper seat body 402 and the lower seat body 401, ensure that the upper mounting hole 408 and the lower mounting hole 409 are coaxially arranged and located on both sides of the driving cavity 406. At the same time, ensure that the guide hole 410 is located between the driving cavity 406 and the transition cavity 407 and is connected through.

[0035] See also Figure 3 As shown, the driving mechanism 05 includes a driving wheel 501 arranged in the driving cavity 406, and a driving rod 502 is slidably arranged in each guide hole 410, and the design of the guide hole 410 ensures that the driving rod 502 moves linearly along the guide hole 410. One end of the driving wheel 501 is installed in the upper mounting hole 408 through a ball bearing. The other end is installed in the lower mounting hole 409 through a ball bearing, and the output end of the driving source 405 is connected to the driving wheel 501 by a coupling. The start of the driving source 405 can drive the driving wheel 501 to rotate in the driving cavity 406. The outer circumference of the driving wheel 501 is provided with a curved groove 503 that is concave toward the center of the driving wheel 501 and is of equal width, and the end of the driving rod 502 located in the driving cavity 406 is provided with a connecting piece matching the curved groove 503. The end of the driving rod 502 located in the transition cavity 407 is connected to the piston mechanism 06. When the driving wheel 501 rotates, the curved groove 503 on the driving wheel 501 simultaneously drives the plurality of driving rods 502 to move alternately and linearly along the axis direction of the driving wheel 501 in the guide hole 410 .

[0036] The curved groove 503 is provided with a low point 504 and a high point 505, and the low point 504 and the high point 505 are arranged relative to each other according to the axis of the driving wheel 501. The low point 504 and the high point 505 are connected by a spiral curved surface transition. Taking a single driving rod 502 as an example, when the connecting piece at the top of the driving rod 502 contacts the low point 504 of the curved groove 503, the driving rod 502 extends out of the driving seat 04. During the rotation of the driving wheel 501, the connecting piece moves into the driving cavity 406 under the action of the spiral curved surface, so that the driving rod 502 is retracted into the driving seat 04. Until the high point 505 in the curved groove 503 contacts the connecting piece. The driving wheel 501 continues to rotate, and the connecting piece moves out of the driving seat 04 under the action of the spiral curved surface, until the bottom point in the curved groove 503 contacts the connecting piece, and the driving rod 502 extends out of the driving seat 04. The driving source 405 drives the driving wheel 501 to rotate continuously at high speed, so that the driving rod 502 can move linearly along the axis of the driving wheel 501 in the driving seat 04, thereby driving the piston mechanism 06 to move linearly along the axis of the driving wheel 501 in the piston seat 03.

[0037] The connecting member includes a connecting rod 506 fixedly mounted on the top of the driving rod 502. A guide wheel 507 is rotatably mounted on the connecting rod 506 and is clamped in the curved groove 503 and adapted to the curved groove 503. The guide wheel 507 is preferably a ball bearing.

[0038] The top of the upper seat body 402 is fixedly installed with the same number of limit seats 508 as the driving rod 502 by means of fasteners. The limit seats 508 are located in the driving cavity 406. The limit slots 509 are arranged in the limit seats 508. The limit member is fixedly installed on the driving rod 502, and the limit member is located below the connecting member. The limit member includes a limit rod 510 fixedly installed on the driving rod 502, and a limit wheel 511 that is clamped in the limit slot 509 and adapted to the limit slot 509 is rotatably installed on the limit rod 510. The limit wheel 511 is preferably a ball bearing. The cooperation between the limit wheel 511 and the limit slot 509 prevents the driving rod 502 from rotating along the axis of the driving rod 502 during the movement.

[0039] See also Figure 4As shown, the piston seat 03 is provided with the same number of fixing holes 301 as the driving rod 502, and each fixing hole 301 is installed with the above-mentioned piston mechanism 06. The piston mechanism 06 includes a fixing seat 601 fixedly installed in the fixing hole 301 in a matching manner, a piston cavity 602 is provided in the fixing seat 601, and a liquid inlet hole 604 and a liquid discharge hole 605 are provided at the bottom of the fixing seat 601, which are connected to the piston cavity 602, and a piston rod 603 is slidably provided in the piston cavity 602, and one end of the piston rod 603 extends out of the top of the fixing seat 601 and is connected to the driving rod 502. The other end of the piston rod 603 is located in the piston cavity 602 and divides the piston cavity 602 into an upper chamber and a lower chamber, and the top of the fixing seat 601 is provided with an exhaust hole connected to the upper chamber, and the liquid inlet hole 604 and the liquid discharge hole 605 are connected to the lower chamber. The movement of the driving rod 502 drives the piston rod to move back and forth in the piston cavity. When the piston rod 603 moves toward the drive seat, the air in the upper chamber is discharged from the exhaust hole, and the liquid enters the lower chamber from the liquid inlet hole 604. When the piston rod moves toward the pump head, the air enters the upper chamber from the exhaust hole, and the liquid in the lower chamber is discharged from the drainage hole 605.

[0040] The end of the piston rod 603 located outside the fixed seat 601 is provided with a mounting groove 606, the end of the driving rod 502 located in the transition chamber 407 is provided with a receiving hole 512 adapted to the end of the piston rod 603, and the driving rod 502 is provided with a connecting hole 513 connected to the receiving hole 512. A mounting rod 514 adapted to the mounting groove 606 is inserted into the connecting hole 513. The mounting rod 514 is preferably a fastener. During assembly, the end of the piston rod 603 is inserted into the receiving hole 512, and then the mounting rod 514 is inserted into the connecting hole 513 and plugged into the mounting groove 606, so that the piston rod 603 can rotate in the receiving hole 512 and move up and down with the driving rod 502.

[0041] The bottom surface of the fixed seat 601 is provided with sealing grooves coaxially arranged with the liquid inlet hole 604 and the liquid discharge hole 605, and a matching sealing ring is arranged in the sealing groove. When the pump head 01 is connected to the piston seat 03, the sealing ring increases the sealing between the two, thereby preventing the liquid from overflowing into the gap between the two.

[0042] See also Figure 5-6 As shown, the pump head 01 includes a connecting seat 101 fixedly mounted on the piston seat 03 by fasteners and a pump seat 102 fixedly mounted on the connecting seat 101, and arc-shaped liquid outlet groove 103 and liquid inlet groove 104 are coaxially arranged in the pump seat 102, and the liquid outlet groove 103 and the liquid inlet groove 104 are both C-shaped, and the pump seat 102 is provided with a liquid inlet pipe 105 connected to the liquid inlet groove 104 and a liquid outlet pipe 106 connected to the liquid outlet groove 103.

[0043] The connecting seat 101 is provided with a liquid inlet pipe 107 which is connected through the liquid inlet hole 604 and the liquid inlet tank 104, and a liquid discharge pipe 108 which is connected through the liquid discharge hole 605 and the liquid outlet tank 103. The liquid discharge pipe 108 and the liquid inlet pipe 107 are both installed with a one-way valve 109 of the same structure and opposite installation direction. When the driving rod 502 drives the piston rod 603 to move toward the driving seat 04, the volume of the upper chamber is reduced, and the air in the upper chamber is discharged from the exhaust hole. At the same time, the volume in the lower chamber increases, and the air pressure in the lower chamber decreases, thereby ensuring that the one-way valve 109 in the liquid discharge pipe 108 is in a closed state, and the pressure of the liquid drives the one-way valve 109 in the liquid inlet pipe 107 to open, so that the liquid in the liquid inlet tank 104 enters the lower chamber through the liquid inlet pipe 107. When the driving rod 502 drives the piston rod 603 to move toward the pump head 01, the volume of the upper chamber increases, and the air enters the upper chamber from the exhaust hole. At the same time, the volume in the lower chamber becomes smaller, and the pressure in the lower chamber increases, thereby ensuring that the one-way valve 109 in the liquid inlet pipe 107 is in a closed state, and the pressure of the liquid drives the one-way valve 109 in the liquid discharge pipe 108 to open, so that the liquid in the lower chamber flows into the liquid outlet groove 103 through the liquid discharge pipe 108 and is discharged from the pump head 01 through the liquid outlet pipe 106. The one-way valve 109 is set in the opposite direction to ensure the pressure of each liquid flow. At the same time, an arc-shaped liquid outlet groove 103 and a liquid inlet groove 104 are set in the pump head 01. The installation direction of the pump head 01 can be rotated and adjusted according to the actual application situation. When the pump head 01 is rotated and adjusted, the liquid discharge pipe 108 and the liquid inlet pipe 107 are connected with the corresponding liquid outlet groove 103 and liquid inlet groove 104. The adjustment does not affect the use of the constant flow pump.

[0044] For example, the liquid outlet pipe 106 and the liquid inlet pipe 105 are arranged on the left and right sides of the pump head 01. The liquid outlet pipe 106 and the liquid inlet pipe 105 are both installed with adapters to communicate with the liquid source. The liquid enters the pump head 01 from the liquid inlet pipe 105 on the left through the adapter, and can only be transported to the designated position through the adapter after flowing out from the liquid outlet pipe 106 on the right. In actual application, the constant flow pump cannot be installed after the adapter is installed on the pump head 01. In other words, the left and right distances of the space for installing the constant flow pump cannot meet the installation requirements. After the pump head 01 is rotated at a certain angle, the adapter outside the pump head 01 is arranged up and down. The latter is arranged in other directions. Because the liquid outlet tank 103 and the liquid inlet tank 104 are arranged in an arc. When the pump head 01 is rotated at a certain angle, the liquid discharge pipe 108 and the liquid inlet pipe 107 are connected with the corresponding liquid outlet tank 103 and the liquid inlet tank 104 using a through connection. After adjustment, the use of the constant flow pump is not affected.

[0045] See also Figure 6As shown, the one-way valve 109 includes a hollow valve body 110 and a valve cover 111 disposed at both ends of the valve body 110, a through hole 112 is disposed on the valve cover 111, a valve core 113 is slidably disposed in the valve body 110, the valve core 113 includes a sealing column 114 adapted to the through hole 112, a blind hole 115 recessed along the axial direction is disposed in the valve core 113, a liquid outlet hole 116 penetrating the blind hole 115 is disposed on the side of the valve core 113, a spring 117 is disposed in the blind hole 115, one end of the spring 117 abuts against the bottom of the blind hole 115, and the other end abuts against the valve cover 111. Under normal conditions, the valve core 113 pushes the sealing column 114 to be inserted into the through hole 112 and seals the through hole 112 under the action of the spring 117, so that the liquid cannot flow from one end of the valve body 110 to the other end of the valve body 110. When force (either pressure or thrust) is applied to the sealing column 114, the valve core 113 moves in the valve body 110 to compress the spring 117, separating the sealing column 114 and the through hole 112, and the liquid enters the through hole 112 at one end of the valve body 110 into the valve body 110 and then enters the blind hole 115 through the liquid outlet hole 116 and flows to the through hole 112 at the other end of the valve body 110.

[0046] In order to improve the sealing performance between the connection base 101 and the pump head 01, a sealing groove is provided on the pump head 01, which is coaxially arranged with the liquid outlet groove 103 and the liquid inlet groove 104. A sealing ring is arranged in the sealing groove. When the pump head 01 and the connection base 101 are fixedly connected, the sealing ring increases the sealing performance between the two.

[0047] When the utility model is in use, the driving source 405 drives the driving wheel 501 to rotate in the driving chamber 406 of the driving seat 04, and the rotation of the driving wheel 501 drives the multiple piston mechanisms 06 in the piston seat 03, and the driving mechanism 05 that moves back and forth alternately drives the piston mechanism 06 to reciprocate through the driving mechanism 05. The reciprocating movement of the piston mechanism 06 transfers the liquid in the liquid inlet groove 104 to the liquid outlet groove 103 in the pump head 01, so that the liquid is discharged from the liquid outlet pipe 106. When the liquid outlet groove 103 in the pump head 01 pushes the liquid, the pressure generated by the piston mechanism 06 directly acts on the liquid in the liquid inlet groove 104, so that the liquid has a certain pressure when it is discharged from the liquid outlet pipe 106.

[0048] Embodiment 1: This embodiment is different from the above embodiments in that the liquid outlet groove 103 and the liquid inlet groove 104 are both in annular shape.

[0049] It should be noted that, for the sake of clear description, the fasteners described in this application are any one of screws, bolts, and screws, and the driving source described in this application is any one of a servo motor, a synchronous motor, or other motors.

[0050] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0052] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A high-flow durable constant-current pump, comprising a pump head and a pump body fixedly connected to the pump head, the pump body comprising a piston seat fixedly connected to the pump head and a drive seat fixedly mounted on the piston seat; a piston mechanism is arranged in the piston seat; a drive mechanism for driving the piston mechanism to reciprocate is arranged in the drive seat, characterized in that: The pump head includes a connecting seat fixedly mounted on the piston seat and a pump seat fixedly mounted on the connecting seat, an arc-shaped liquid outlet groove and a liquid inlet groove are coaxially arranged in the pump seat, a liquid inlet pipe connected to the liquid inlet groove and a liquid outlet pipe connected to the liquid outlet groove are arranged on the pump seat, a liquid inlet pipe connected to the piston mechanism and the liquid inlet groove and a liquid discharge pipe connected to the piston mechanism and the liquid outlet groove are arranged on the connecting seat, and a one-way valve with the same structure and opposite installation directions is installed in the liquid discharge pipe and the liquid inlet pipe.

2. The high flow durable constant flow pump according to claim 1, characterized in that: The liquid outlet groove and the liquid inlet groove are both C-shaped or annular.

3. The high flow durable constant flow pump according to claim 1, characterized in that: The driving mechanism includes a driving wheel rotatably mounted in a driving seat, and a plurality of driving rods slidably arranged in the driving seat. A curved groove is arranged on the outer circumference of the driving wheel to drive the plurality of driving rods to move alternately in a straight line along the axial direction of the driving wheel; the end of the driving rod is connected to the piston mechanism.

4. The high flow durable constant flow pump according to claim 3, characterized in that: The end of the driving rod is provided with a connecting piece matching the curved groove; the connecting piece comprises a connecting rod fixedly mounted on the top of the driving rod; and a guide wheel rotatably mounted on the connecting rod and clamped in the curved groove and adapted to the curved groove.

5. The high flow durable constant flow pump according to claim 4, characterized in that: The curved groove is provided with a low point and a high point, and the low point and the high point are arranged relatively according to the axis of the driving wheel; the low point and the high point are connected by a spiral curved surface transition.

6. The high flow durable constant flow pump according to claim 5, characterized in that: The same number of limit seats as the driving rod are fixedly installed in the driving seat, and a limit slot is set in the limit seat. A limit piece adapted to the limit slot is fixedly installed on the driving rod. The limit piece includes a limit rod fixedly installed on the driving rod, and a limit wheel adapted to the limit slot is rotatably installed on the limit rod.

7. The high flow durable constant flow pump according to claim 1, characterized in that: The piston mechanism includes a fixed seat fixedly installed in the piston seat, a piston cavity is arranged in the fixed seat, a liquid inlet hole and a liquid discharge hole which are connected through the piston cavity are arranged at the bottom of the fixed seat, the liquid inlet pipe is connected through the liquid inlet hole; the liquid discharge pipe is connected through the liquid discharge hole; a piston rod is slidably arranged in the piston cavity, one end of the piston rod extends out of the top of the fixed seat and is connected to the driving rod.

8. The high flow durable constant flow pump according to claim 7, characterized in that: A mounting groove is arranged on the end of the piston rod, a receiving hole adapted to the piston rod end is arranged on the end of the driving rod, and a connecting hole penetratingly connected to the receiving hole is arranged on the driving rod; a mounting rod adapted to the mounting groove is inserted into the connecting hole.

9. The high flow durable constant flow pump according to claim 1, characterized in that: The one-way valve includes a hollow valve body and valve covers arranged at both ends of the valve body, the valve cover is provided with a through hole, a valve core is slidably arranged in the valve body, the valve core includes a sealing column adapted to the through hole, a blind hole recessed along the axial direction is provided in the valve core, a liquid outlet hole communicating with the blind hole is provided on the side of the valve core, a spring is provided in the blind hole, one end of the spring is abutted against the bottom of the blind hole, and the other end is abuttedly connected with the valve cover.

Images