Pump pipe structure convenient to assemble and corresponding electromagnetic pump

Abstract

The utility model provides a pump pipe structure convenient to assemble and a corresponding electromagnetic pump, the pump pipe structure comprises a first pipe body, a second pipe body, a retainer and a coupler, one end of the first pipe body is sleeved in the second pipe body, the circumference of the first pipe body is provided with a first convex step, the circumference of the second pipe body is provided with a second convex step, and the first convex step is connected with the second convex step. A clamping block is arranged on the periphery of the retainer, the barrel part of the coupler is connected to the periphery of the second pipe body in a sleeving mode, a check ring is arranged at the end, away from the clamping jaw part, of the interior of the barrel part and makes contact with the side, away from the second pipe body, of the first convex step, the retainer is connected to the periphery of the second pipe body, and the clamping block is located at the end, close to the second convex step, of the retainer. The clamping jaw part is connected with the clamping block in a clamping mode, and the clamping block is located between the clamping jaw part and the second convex step. According to the pump pipe structure, the connectors are arranged, disassembly and assembly of the connectors determine disassembly and assembly of the first pipe body, the second pipe body, the retainer and other parts, the number of parts is small, cost is low, disassembly and assembly are convenient and fast, and the structure is stable.

Description

Technical Field

[0001] The utility model relates to the field of electromagnetic pumps, in particular to a conveniently assembled pump pipe structure and a corresponding electromagnetic pump. Background Art

[0002] An electromagnetic pump is a device that uses a magnetic field to control the movement of an iron core, thereby driving the movement of a fluid. The electromagnetic pump is composed of many parts, such as a coil assembly, a pump tube, an iron core, an inlet and outlet rubber head, multiple springs, etc. The electromagnetic pump in the prior art generally uses screws or clamps to lock the pump tube and the coil assembly together, which is not convenient to disassemble and assemble, and has many parts, and the material cost and manufacturing and assembly cost are both high.

[0003] Therefore, it is necessary to provide a pump tube structure that is easy to assemble and a corresponding electromagnetic pump to solve the above technical problems. Utility Model Content

[0004] The utility model provides a conveniently assembled pump pipe structure and a corresponding electromagnetic pump, so as to solve the problem that the existing electromagnetic pump has many parts, and the material cost and the manufacturing and assembly cost are both high.

[0005] To solve the above technical problems, the technical solution of the utility model is: a pump tube structure that is easy to assemble, comprising a first tube body, a second tube body, a retaining frame, and a connector, one end of the first tube body being sleeved in the second tube body, the circumference of the first tube body being provided with a first convex step, the circumference of the second tube body being provided with a second convex step, the outer circumference of the retaining frame being provided with a clamping block, the connector comprising a cylinder portion and a claw portion, the cylinder portion being sleeved on the outer circumference of the second tube body, a retaining ring being provided at one end of the cylinder portion away from the claw portion, the retaining ring being in contact with a side of the first convex step away from the second tube body, the retaining frame being connected to the outer circumference of the second tube body, the clamping block being located at one end of the retaining frame close to the second convex step, the claw portion being clamped with the clamping block, and the clamping block being located between the claw portion and the second convex step.

[0006] In the utility model, the two sides of the cylindrical part are respectively connected to the two claw parts through the connecting part, and the connecting part is provided with a avoidance groove, and the avoidance groove corresponds to the second convex step. The claw part includes a connecting plate and a claw body connected to one end of the connecting plate, and the second convex step is provided with a groove, and the connecting plate is fitted in the groove. The connecting plate is located between the second convex step and the clamping block, and the claw body is clamped on the side of the clamping block away from the second convex step.

[0007] Wherein, extension plates for disassembling the claw body are protrudingly provided on both sides of the claw body.

[0008] In addition, a first chamfered portion is provided at one end of the claw body to facilitate the clamping engagement with the clamping block, and a second chamfered portion is provided on the connecting plate to facilitate the clamping engagement with the second convex step.

[0009] In the utility model, the outer periphery of the first tube body is sealed with the second tube body through a static sealing ring, and the outer periphery of the first tube body is provided with a first concave step for accommodating the static sealing ring.

[0010] In the utility model, a boss portion for contacting with the first convex step is provided on the inner side of the retaining ring.

[0011] The utility model also includes an electromagnetic pump, which uses the above-mentioned conveniently assembled pump tube structure, and the electromagnetic pump also includes a coil assembly, an iron core, a return spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, and a liquid inlet rubber head;

[0012] The coil assembly is surrounded and arranged on the outer periphery of the retaining frame, and a liquid inlet hole section, a pump chamber hole section, and a liquid outlet hole section are arranged in the pump tube structure. The pump chamber hole section is located between the liquid inlet hole section and the liquid outlet hole section, and the liquid inlet hole section and the pump chamber hole section are connected through the liquid inlet hole, and the liquid outlet hole section and the pump chamber hole section are connected through the liquid outlet hole. The iron core is slidably arranged in the pump tube structure, and the reset spring is arranged between the iron core and the inner wall of the liquid inlet hole section. The iron core is axially passed through, and the liquid outlet rubber head cooperates with the liquid outlet control spring to unidirectionally seal the liquid outlet hole, and the liquid inlet rubber head cooperates with the liquid inlet control spring to unidirectionally seal the liquid inlet hole, and the liquid outlet rubber head and the liquid inlet rubber head block the two ends of the pump chamber hole section in opposite water-blocking directions.

[0013] In the utility model, the inner circumference of the first tube body is sealed with the iron core through a dynamic sealing ring, and the inner circumference of the first tube body is provided with a second concave step for accommodating the dynamic sealing ring.

[0014] In the utility model, a gasket is arranged between the axial end surface of the first tube body and the second tube body, and the gasket simultaneously limits the dynamic sealing ring and the static sealing ring between the outer periphery of the first tube body and the second tube body.

[0015] In the present invention, the gasket includes a convex ring portion, and the convex ring portion extends into the first concave step of the first tube body.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the pump tube structure of the utility model is provided with a connector, and the disassembly and assembly of the connector determines the disassembly and assembly of multiple components such as the first tube body, the second tube body and the retaining frame, so the number of parts is small, the cost is low, the disassembly and assembly is convenient, and the structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the utility model.

[0018] Figure 1 It is a schematic diagram of the exploded structure of the electromagnetic pump of the utility model.

[0019] Figure 2 It is a cross-sectional view of the electromagnetic pump of the utility model.

[0020] Figure 3 for Figure 2 A partial cross-sectional view of the connector of the electromagnetic pump.

[0021] Figure 4 It is a structural schematic diagram of the connector of the electromagnetic pump of the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0023] Directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only used for reference to the directions of the drawings. The directional terms used are used to illustrate and understand the present invention, and are not used to limit the present invention.

[0024] The words "first", "second" and the like in the terminology of the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be construed as limiting the order of precedence.

[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, the connection can be a detachable connection or a connection of an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] The electromagnetic pump in the prior art generally uses screws or clamps to lock the pump tube and the coil assembly together, which is not convenient for disassembly and assembly, has many parts, and has high material costs and manufacturing and assembly costs.

[0027] The following is a preferred embodiment of a conveniently assembled electromagnetic pump provided by the utility model that can solve the above technical problems.

[0028] Please refer to Figure 1-Figure 3 In the figures, units with similar structures are represented by the same reference numerals.

[0029] The utility model provides an electromagnetic pump, which includes a coil assembly 14, an iron core 16, a return spring 15, a liquid outlet control spring 171, a liquid inlet control spring 181, a liquid outlet rubber head 17, a liquid inlet rubber head 18, and a pump pipe structure that is easy to assemble.

[0030] The pump tube structure for convenient assembly includes a first tube body 111, a second tube body 112, a retainer 13, and a connector 12. One end of the first tube body 111 is sleeved in the second tube body 112. The circumference of the first tube body 111 is provided with a first convex step 1111, and the circumference of the second tube body 112 is provided with a second convex step 1121. The outer circumference of the retainer 13 is provided with a clamping block 131. The connector 12 includes a barrel portion 121 and a claw portion 122. The barrel portion 121 is sleeved in the second tube body 112. A retaining ring 1211 is provided at one end of the cylinder 121 away from the claw 122, and the retaining ring 1211 contacts the side of the first convex step 1111 away from the second tube 112. The retaining frame 13 is connected to the outer periphery of the second tube 112, and the clamping block 131 is located at one end of the retaining frame 13 close to the second convex step 1121. The claw 122 is clamped with the clamping block 131, and the clamping block 131 is located between the claw 122 and the second convex step 1121. The first tube 111, the second tube 112, and the retaining frame 13 can be stably connected into an integral structure through the connector 12.

[0031] Please refer to Figure 1 and Figure 2 In the present embodiment, the coil assembly 14 is surrounded by the outer periphery of the retaining frame 13, and a liquid inlet hole section, a pump chamber hole section, and a liquid outlet hole section are provided in the pump tube structure. The pump chamber hole section is located between the liquid inlet hole section and the liquid outlet hole section. It should be noted that the space of the pump chamber hole section changes with the sliding of the iron core 16.

[0032] The inlet hole section and the pump cavity hole section are connected through the inlet hole, and the outlet hole section and the pump cavity hole section are connected through the outlet hole. The iron core 16 is slidably arranged in the pump pipe structure, and the reset spring 15 is arranged between the iron core 16 and the inner wall of the inlet hole section. The iron core 16 is axially penetrated, and the liquid outlet rubber head 17 cooperates with the liquid outlet control spring 171 to unidirectionally seal the liquid outlet hole, and the liquid inlet rubber head 18 cooperates with the liquid inlet control spring 181 to unidirectionally seal the liquid inlet hole. The liquid outlet rubber head 17 and the liquid inlet rubber head 18 are blocked at both ends of the pump cavity hole section in opposite water blocking directions. The iron core 16 reciprocates under the action of the electromagnetic force formed by the coil assembly 14 and the reset spring 15, so that the liquid is pumped out through the inlet hole section, the pump cavity hole section, and the outlet hole section in sequence.

[0033] Please refer to Figure 3 In this embodiment, the two sides of the barrel portion 121 are connected to the two claw portions 122 through a connecting portion, and a avoiding groove is provided on the connecting portion, and the avoiding groove corresponds to the second convex step 1121. Figure 3 In the embodiment, the second convex step 1121 is fitted into the avoidance groove of the connecting portion.

[0034] The claw portion 122 includes a connecting plate 1121 and a claw body 1122 connected to one end of the connecting plate 1121. A groove 11211 is provided on the second convex step 1121. The connecting plate 1121 fits in the groove 11211. The connecting plate 1121 is located between the second convex step 1121 and the clamping block 131. The claw body 1122 is clamped on the side of the clamping block 131 away from the second convex step 1121, and the connection structure is very stable.

[0035] Please refer to Figure 4 Among them, extension plates 1223 for disassembling the claw body 1122 are protruded from both sides of the claw body 1122. The claw body 1122 can be easily disconnected from the block 131 by bending the extension plates 1223.

[0036] In addition, a first chamfered portion is provided at one end of the claw body 1122 for facilitating the extrusion and clamping with the clamping block 131, and a second chamfered portion is provided on the connecting plate 1121 for facilitating the clamping with the second convex step 1121, so as to facilitate the operation of the connector 12 for extrusion and clamping with the first tube body 111, the second tube body 112, and the retaining frame 13.

[0037] In this embodiment, the outer periphery of the first tube body 111 is sealed with the second tube body 112 via a static sealing ring 19 , and the outer periphery of the first tube body 111 is provided with a first concave step for accommodating the static sealing ring 19 .

[0038] The inner circumference of the first tube body 111 is sealed with the iron core 16 via the dynamic sealing ring 1A, and the inner circumference of the first tube body 111 is provided with a second concave step for accommodating the dynamic sealing ring 1A.

[0039] Furthermore, a gasket 1B is disposed between the axial end surface of the first tube body 111 and the second tube body 112 , and the gasket 1B simultaneously restricts the dynamic sealing ring 1A and the static sealing ring 19 .

[0040] In addition, the gasket 1B includes a convex ring portion 1B1, which extends into the first concave step of the first tube body 111, thereby improving the stability of the fit between the gasket 1B and the first tube body 111 and the second tube body 112, and better restricting the static sealing ring 19.

[0041] In this embodiment, a boss portion 1212 for contacting the first convex step 1111 is provided on the inner side of the retaining ring 1211 , and the boss portion 1212 can be precisely processed to ensure that the boss portion 1212 accurately and stably restricts the first tube body 111 .

[0042] When assembling the easily assembled electromagnetic pump of this embodiment, first assemble the coil assembly 14 to the outer periphery of the second tube body 112 through the retaining frame 13, then pass the liquid inlet control spring 181 through the iron core 16 and connect the liquid inlet rubber head 18 and the iron core 16 at the same time, and place the reset spring 15 and the assembled iron core 16 into the second tube body 112 at one time.

[0043] Assemble the liquid outlet rubber head 17 and the liquid outlet control spring 171 into the first tube body 111, then install the dynamic sealing ring 1A and the static sealing ring 19 on the first tube body 111, and use the gasket 1B to connect with the first tube body 111, then put the assembled first tube body 111 into the second tube body 112, and finally use the connector 12 to insert it from the outer periphery of the first tube body 111, so that the claw part 122 is engaged with the block 131, and at the same time the retaining ring 1211 is in contact with the first convex step 1111 to form a restriction on the first tube body 111.

[0044] The pump tube structure of the electromagnetic pump of this embodiment is provided with a connector, and the disassembly and assembly of the connector determines the disassembly and assembly of multiple components such as the first tube body, the second tube body and the retaining frame. The number of parts is small, the cost is low, the disassembly and assembly are convenient, and the structure is stable.

[0045] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A conveniently assembled pump tube structure, characterized in that: The invention comprises a first tube body, a second tube body, a retaining frame, and a connector, wherein one end of the first tube body is sleeved in the second tube body, a first convex step is provided on the circumference of the first tube body, a second convex step is provided on the circumference of the second tube body, a clamping block is provided on the outer circumference of the retaining frame, and the connector comprises a cylinder portion and a claw portion, the cylinder portion is sleeved in the outer circumference of the second tube body, a retaining ring is provided on the end of the cylinder portion away from the claw portion, the retaining ring is in contact with a side of the first convex step away from the second tube body, the retaining frame is connected to the outer circumference of the second tube body, the clamping block is located at an end of the retaining frame close to the second convex step, the claw portion is clamped with the clamping block, and the clamping block is located between the claw portion and the second convex step.

2. The conveniently assembled pump tube structure according to claim 1, characterized in that: The two sides of the cylindrical body are respectively connected to the two claw parts through connecting parts, and the connecting part is provided with a avoidance groove, and the avoidance groove corresponds to the second convex step. The claw part includes a connecting plate and a claw body connected to one end of the connecting plate, and the second convex step is provided with a groove, and the connecting plate is fitted in the groove. The connecting plate is located between the second convex step and the clamping block, and the claw body is clamped on the side of the clamping block away from the second convex step.

3. The conveniently assembled pump tube structure according to claim 2, characterized in that: Extension plates for disassembling the claw body are protrudingly provided on both sides of the claw body.

4. The conveniently assembled pump tube structure according to claim 2, characterized in that: A first chamfered portion is disposed at one end of the claw body to facilitate extrusion and clamping with the clamping block, and a second chamfered portion is disposed on the connecting plate to facilitate clamping with the second convex step.

5. The conveniently assembled pump tube structure according to claim 1, characterized in that: The outer periphery of the first tube body is sealed with the second tube body via a static sealing ring, and the outer periphery of the first tube body is provided with a first concave step for accommodating the static sealing ring.

6. The conveniently assembled pump tube structure according to claim 1, characterized in that: A boss portion for contacting the first convex step is provided on the inner side of the retaining ring.

7. An electromagnetic pump, characterized in that: Using the conveniently assembled pump tube structure described in any one of claims 1 to 6, the electromagnetic pump further comprises a coil assembly, an iron core, a return spring, a liquid outlet control spring, a liquid inlet control spring, a liquid outlet rubber head, and a liquid inlet rubber head; The coil assembly is surrounded and arranged on the outer periphery of the retaining frame, and a liquid inlet hole section, a pump chamber hole section, and a liquid outlet hole section are arranged in the pump tube structure. The pump chamber hole section is located between the liquid inlet hole section and the liquid outlet hole section, and the liquid inlet hole section and the pump chamber hole section are connected through the liquid inlet hole, and the liquid outlet hole section and the pump chamber hole section are connected through the liquid outlet hole. The iron core is slidably arranged in the pump tube structure, and the reset spring is arranged between the iron core and the inner wall of the liquid inlet hole section. The iron core is axially passed through, and the liquid outlet rubber head cooperates with the liquid outlet control spring to unidirectionally seal the liquid outlet hole, and the liquid inlet rubber head cooperates with the liquid inlet control spring to unidirectionally seal the liquid inlet hole, and the liquid outlet rubber head and the liquid inlet rubber head block the two ends of the pump chamber hole section in opposite water-blocking directions.

8. The electromagnetic pump according to claim 7, characterized in that: The inner circumference of the first tube body is sealed with the iron core through a dynamic sealing ring, and the inner circumference of the first tube body is provided with a second concave step for accommodating the dynamic sealing ring.

9. The electromagnetic pump according to claim 8, characterized in that: A gasket is arranged between the axial end surface of the first tube body and the second tube body, and the gasket simultaneously limits the dynamic sealing ring and the static sealing ring between the outer periphery of the first tube body and the second tube body.

10. The electromagnetic pump according to claim 9, characterized in that: The gasket includes a convex ring portion extending in a first concave step of the first tube body.

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