CN216741956U - Seal structure and pump head structure - Google Patents
Seal structure and pump head structure Download PDFInfo
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- CN216741956U CN216741956U CN202123073536.0U CN202123073536U CN216741956U CN 216741956 U CN216741956 U CN 216741956U CN 202123073536 U CN202123073536 U CN 202123073536U CN 216741956 U CN216741956 U CN 216741956U
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Abstract
The utility model relates to a pump body shock attenuation technical field, concretely relates to seal structure and pump head structure. Comprises more than one first sealing structure and more than one second sealing structure; the first sealing structure and the second sealing structure are used for sealing the structure surface; the first sealing structure is matched with the first region of the surface of the structure and used for sealing the first region of the surface of the structure; the second sealing structure is matched with the region II of the surface of the structure and used for sealing the region II of the surface of the structure. Have to current seal structure that sealed effect is not good, technical problem such as durability is not enough, the utility model discloses a change sealed structure to realize better sealed effect.
Description
Technical Field
The utility model relates to a pump body shock attenuation technical field, concretely relates to seal structure and pump head structure.
Background
In pump head structures, particularly pump bodies such as diaphragm pumps, sealing structures are often required to be arranged at connecting parts of end covers to prevent liquid from flowing out, but existing sealing structures are generally sealing gaskets, but are limited by reasons such as materials, and have the problems of poor sealing effect, insufficient durability and the like.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved by the utility model
Have sealed effect not good to current seal structure, technical problem such as durability is not enough, the utility model provides a seal structure and pump head structure, it is through changing sealed structure to realize better sealed effect.
Technical scheme
In order to solve the above problem, the utility model provides a technical scheme does:
a sealing structure comprises more than one first sealing structure and more than one second sealing structure; the first sealing structure and the second sealing structure are used for sealing the surfaces of the structures; the first sealing structure is matched with the first region of the surface of the structure and used for sealing the first region of the surface of the structure; the second sealing structure is matched with the region II of the surface of the structure and used for sealing the region II of the surface of the structure.
Optionally, the first sealing structure and the second sealing structure are made of polymer materials.
Optionally, the first sealing structure and the second sealing structure are both sheet-shaped.
Optionally, the first sealing structure and the second sealing structure are provided separately.
A pump head structure comprises the sealing structure, which comprises an end cover and a main shell, wherein a first sealing structure is arranged between the main shell and the end cover; a diaphragm chamber assembly is arranged on one side of the main shell, a pressure stabilizing cavity is arranged in the main shell and is communicated with the diaphragm chamber assembly, an installation part is arranged on the end cover and is matched and fixed with the pressure stabilizing cavity, and a second sealing structure is arranged among the installation part, the pressure stabilizing cavity and the pressure regulating part; the main shell is provided with a water inlet and a water outlet, the main shell is internally provided with a suction cavity and a discharge cavity, the water inlet is communicated with the suction cavity, and the water outlet is communicated with the discharge cavity; the suction and discharge chambers are in communication through the diaphragm chamber assembly.
Optionally, a radial sealing portion on the first sealing structure abuts against the pressure stabilizing cavity and the mounting portion, a protruding portion abutting against the mounting portion is arranged on the radial sealing portion, and an axial sealing portion on the first sealing structure abuts against the pressure stabilizing cavity and the end cover.
Optionally, a third limiting part is arranged on the first sealing structure, a first limiting part is arranged on the main casing body, a second limiting part is arranged on the end cover, and the first limiting part, the second limiting part and the third limiting part are matched with each other.
Optionally, a gap exists between the first sealing structure and the end cover, a flexible protrusion is arranged on one side of the gap of the first sealing structure, and the flexible protrusion is used for abutting against the end cover.
Optionally, be provided with annular and bulge loop on the steady voltage chamber, the bulge loop with the second seal structure offsets, second seal structure edge is provided with the adaptation ring, adaptation ring and annular phase-match.
Optionally, be provided with the second bellying on the end cover, be provided with first protruding muscle and second spill annular in the main casing body, be provided with first spill annular and third bellying on the first seal structure, the second bellying offsets with first seal structure, first protruding muscle and first spill annular phase-match, third bellying and second spill annular phase-match, second bellying and first protruding muscle set up relatively.
Optionally, be provided with pressure regulating portion in the installation department, pressure regulating portion is including the fixed mounting that sets up in the installation department, mounting one side is provided with the elastic component, elastic component one end activity is provided with the case, second seal structure set up in case one side.
Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
have to current seal structure that sealed effect is not good, technical problem such as durability is not enough, the utility model discloses a change sealed structure to realize better sealed effect.
Drawings
Fig. 1 is a schematic structural diagram of a pump head structure according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a pump head structure according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of a point a in fig. 2.
Fig. 4 is an enlarged schematic view of fig. 2 at B.
Fig. 5 is a schematic structural diagram of the main housing according to an embodiment of the present invention.
Fig. 6 is an assembly schematic diagram of a first sealing structure according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of the pressure regulating portion according to the embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a first sealing structure according to an embodiment of the present invention.
Fig. 9 is a second schematic cross-sectional view of a pump head structure according to an embodiment of the present invention.
Fig. 10 is an enlarged schematic view at C in fig. 9.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.
Example 1
With reference to fig. 1-8, the present embodiment provides a seal structure that includes more than one first seal structure 120 and more than one second seal structure 400; the first and second seal structures 120, 400 are used to seal structure surfaces; the first seal structure 120 cooperates with region one of the structure surface for sealing region one of the structure surface; the second seal 400 cooperates with a region of the structure surface for sealing the region two of the structure surface.
The first sealing structure 120 is matched with the first structural surface area, and the shape and the configuration of the first sealing structure 120 are matched with the first structural surface area so as to be arranged on the first structural surface area to realize sealing on the first structural surface area; specifically, if the first structural surface area is a continuous convex shape, or an irregular shape with unevenness, or a plane shape, or a wavy shape, etc., the shape structure of the first sealing structure 120 is matched with the first structural surface area so as to be disposed on the first structural surface area in a matching manner such as covering, attaching, or covering, etc., thereby achieving the technical effect of sealing the first structural surface area.
The second seal structure 400 cooperates with region two of the structured surface in the same manner as the first seal structure 120 described above: the second sealing structure 400 is matched with the region II of the structure surface, and the shape and the structure of the second sealing structure 400 are matched with the region II of the structure surface so as to be arranged on the region II of the structure surface to realize the sealing of the region II of the structure surface; specifically, if the second structural surface area is a continuous convex shape, or an irregular shape with unevenness, or a plane shape, or a wavy shape, etc., the shape structure of the second sealing structure 400 is matched with the second structural surface area so as to be disposed on the second structural surface area in a matching manner such as covering, attaching, or covering, etc., thereby achieving the technical effect of sealing the second structural surface area.
The determination of the sealing material used for the first sealing structure 120 and the second sealing structure 400 is determined according to the application environment of the sealing structure of the present embodiment, for example, if the sealing structure is applied to a pump body, and the pump body is used for drinking water, the sealing material of the first sealing structure 120 and the second sealing structure 400 is selected from a material with high hygienic safety, such as silica gel, which is hygienic and safe, and has high durability. If the pump body is used in non-drinking water occasions, such as chemical plants, bathing and other occasions with low water quality requirements, the sealing materials of the first sealing structure 120 and the second sealing structure 400 can be made of high molecular materials such as butadiene-acrylonitrile rubber and ethylene propylene diene monomer rubber so as to adapt to the water quality with low hygienic quality requirements, and in a word, the selection of the materials needs to meet the basis of the national standards related to hygienic safety.
In addition to the application environment of the product structure to be sealed, the working condition of the sealing portion needs to be considered, for example, for a diaphragm pump body, the difference between dynamic sealing and static sealing needs to be considered, that is, whether the first sealing structure 120 or the second sealing structure 400 needs to be activated in the first region or the second region. In one embodiment, the first region needs to realize static sealing, so that a silica gel material with the best sanitary safety and better sealing performance can be selected, and the second region needs to realize dynamic sealing, so that nitrile rubber and ethylene propylene diene monomer polymer materials with relatively lower sanitary safety requirements and better sealing and mechanical strength can be selected, and thus the balance between the sanitary safety requirements and the product performance requirements is realized.
The first sealing area and the second sealing area are not only sanitary and safe, but also static sealing is adopted in the first sealing area, so that a silica gel material with the best sanitary and safe performance and better sealing performance can be selected, and the second sealing area is a dynamic sealing structure, so that a nitrile rubber and ethylene propylene diene polymer material with relatively poor sanitary and safe performance but better sealing and mechanical strength can be selected, and the problems of food sanitation and product performance requirements are well solved.
The first and second regions of the structured surface are the regions of the structured surface to be sealed, respectively, but it is within the scope of the present disclosure to include not only the first and second regions to be sealed for the structured surface.
The relative position relationship between the first region and the second region of the structure surface determines the relative position, connection and arrangement relationship between the first sealing structure 120 and the second sealing structure 400 which are matched with the first region and the second region, and the first sealing structure 120 and the second sealing structure 400 can be separated from each other or integrally formed; if the first and second regions of the structured surface are located adjacent to each other, the first and second seal structures 120 and 400 are also located adjacent to each other; if there is a space between region one and region two of the structured surface, the first seal structure 120 and the second seal structure 400 are also provided separately. In consideration of convenience in processing and manufacturing, the first sealing structure 120 and the second sealing structure 400 can be connected through a transition part made of the same material as that of any one of the first sealing structure and the second sealing structure, so that the first sealing structure 120 and the second sealing structure 400 can be integrally processed and formed, and the processing and manufacturing cost is saved.
The interval exists between the first area and the second area of the structure surface, namely the two areas are not adjacent, and the condition can be expressed as that: 1. the first area and the second area are arranged at intervals; 2. the distance difference in any axial direction exists between the first region and the second region; 3. a mixture of the two cases 1 and 2 above; in view of the above, the first sealing structure 120 and the second sealing structure 400 are configured and shaped to fit the first region and the second region, respectively, and the relationship between the first sealing structure and the second sealing structure can be divided or formed integrally, depending on the structural surface condition of the first region and the second region.
As an optional implementation manner of this embodiment, the first sealing structure 120 and the second sealing structure 400 are both made of a polymer material. In this embodiment, the first sealing structure 120 and the second sealing structure 400 are made of polymer materials, but the determination of the sealing materials used by the first sealing structure 120 and the second sealing structure 400 is determined according to the application environment of the product object to be sealed, for example, if the product object is applied to a pump body, and the pump body is used for drinking water, the sealing materials of the first sealing structure 120 and the second sealing structure 400 are made of materials with high sanitary safety, such as silica gel, which is sanitary and safe and has high durability. If the pump body is used in non-drinking water occasions, such as chemical plants, bathing and other occasions with low water quality requirements, the sealing materials of the first sealing structure 120 and the second sealing structure 400 can be made of high molecular materials such as butadiene-acrylonitrile rubber and ethylene propylene diene monomer rubber so as to adapt to the water quality with low hygienic quality requirements, and in a word, the selection of the materials needs to meet the basis of the national standards related to hygienic safety.
The materials of the first sealing structure 120 and the second sealing structure 400 can be selected differently, the first sealing structure 120 is silica gel, and the silica gel has better sealing performance and is sanitary and safe. The second sealing structure 400 is made of polymer materials such as nitrile rubber, ethylene propylene diene monomer and the like. The materials of the two can be selected according to different characteristics of the first area and the second area on the surface of the structure, such as using state environment, functional effect on the structure, sealing performance requirement and other factors, and the sealing structure made of different materials is matched with the sealing structure, for example, on a water pump, the second area is a pressure stabilizing cavity, and the first area is a cavity of the main shell; the sealing effect with optimal cost performance is realized, materials can be saved, the cost is reduced, and the improvement of the overall performance of the structure is facilitated.
As an alternative embodiment of this embodiment, the first sealing structure 120 and the second sealing structure 400 are both sheet-shaped. In this embodiment, the first seal structure 120 and the second seal structure 400 may be in the shape of a sheet, that is, the first seal structure 120 and the second seal structure 400 may be both seal gaskets adapted to the first region and the second region, and the seal gaskets are more suitable for use in a pump body structure.
As an alternative embodiment of this embodiment, the first sealing structure 120 is separate from the second sealing structure 400. The relative positional relationship between the first and second regions of the structural surface determines the relative position, connection and arrangement relationship between the first and second sealing structures 120 and 400 that mate with each other.
Example 2
The present embodiment proposes a pump head structure, including the sealing structure described in embodiment 1, including an end cap 100 and a main housing 101, where a first sealing structure 120 is disposed between the main housing 101 and the end cap 100; a diaphragm chamber assembly is arranged on one side of the main shell 101, a pressure stabilizing cavity 302 is arranged in the main shell 101, the pressure stabilizing cavity 302 is communicated with the diaphragm chamber assembly, a mounting part 102 is arranged on the end cover 100, the mounting part 102 is matched and fixed with the pressure stabilizing cavity 302, and a second sealing structure 400 is arranged among the mounting part 102, the pressure stabilizing cavity 302 and the pressure regulating part;
the main shell 101 is provided with a water inlet 103 and a water outlet 104, the main shell 101 is internally provided with a suction cavity 300 and a discharge cavity 301, the water inlet 103 is communicated with the suction cavity 300, and the water outlet 104 is communicated with the discharge cavity 301; the suction chamber 300 and the discharge chamber 301 communicate through the diaphragm chamber assembly.
According to the pump head structure of the embodiment, the first sealing structure 120 is arranged between the end cover 100 and the main shell 101, and the second sealing structure 400 is arranged between the pressure stabilizing cavity 302 and the pressure regulating part, so that the sealing performance is further optimized on the basis of the shock absorption pump head, and a better sealing effect is achieved.
In this embodiment, the first sealing structure 120 is preferably a gasket to seal between the end cap 100 and the main housing 101. In this embodiment, the first sealing structure 120 and the second sealing structure 400 are preferably made of silica gel, which has good sealing performance and is sanitary and safe. In addition, high molecular materials such as nitrile rubber, ethylene propylene diene monomer and the like can be used as alternative materials and can be applied to occasions with low requirements on sanitation and safety.
In this embodiment, with the operation of the diaphragm chamber component, water flows into the suction cavity 300 from the water inlet 103 of the pump head structure, then flows through the diaphragm chamber component, enters the discharge cavity 301, and finally flows out from the water outlet 104, so that the whole process of the pump head structure doing work on water is realized under the operation of the diaphragm chamber component. In this embodiment, water flows from the inlet 103 of the pump head structure, through the diaphragm chamber assembly, back to the main housing 101, and then out of the outlet 104, wherein the structure of the diaphragm chamber assembly is the same as that related to the existing diaphragm pump.
As an optional implementation manner of this embodiment, the radial sealing portion 121 on the first sealing structure 120 abuts against the pumping chamber 302 and the mounting portion 102, the radial sealing portion 121 is provided with a protruding portion 123 abutting against the mounting portion 102, and the axial sealing portion 122 on the first sealing structure 120 abuts against the pumping chamber 302 and the end cover 100.
Conceivably, the radial sealing portion 121 on the first sealing structure 120 abuts against the pressure maintaining cavity 302 and the mounting portion 102, the radial sealing portion 121 is of a surrounding hollow cylindrical structure, and radial sealing between the pressure maintaining cavity 302 and the mounting portion 102 is achieved, and further, the radial sealing portion 121 is provided with the protruding portion 123, and the protruding portion 123 is a protruding ring and can abut against the mounting portion 102, so that radial sealing between the pressure maintaining cavity 302 and the mounting portion 102 is further strengthened by deformation of the protruding portion 123. In addition, the axial sealing portion 122 on the first sealing structure 120 abuts against the pressure maintaining cavity 302 and the end cover 100, and the axial sealing portion 122 is of a flat ring-shaped structure, so that radial sealing between the pressure maintaining cavity 302 and the end cover 100 is realized.
In this embodiment, the radial seal portion 121 and the axial seal portion 122 are both integrally formed with the first seal structure 120.
As an optional implementation manner of this embodiment, a third limiting portion 107 is disposed on the first sealing structure 120, a first limiting portion 105 is disposed on the main housing 101, a second limiting portion 106 is disposed on the end cover 100, and the first limiting portion 105, the second limiting portion 106, and the third limiting portion 107 are all matched with each other.
In this embodiment, in order to realize the stable arrangement of the first sealing structure 120, the third limiting portion 107 may be disposed on the first sealing structure 120, and the third limiting portion 107 cooperates with the first limiting portion 105 on the main housing 101 and the second limiting portion 106 on the end cap 100 to be matched and combined with each other, so as to realize the assembly of the first sealing structure 120.
As an optional implementation manner of this embodiment, a gap exists between the first sealing structure 120 and the end cap 100, and the first sealing structure 120 is provided with a flexible protrusion 108 on a side of the gap, where the flexible protrusion 108 is used to abut against the end cap 100.
The first sealing structure 120 in this embodiment is a flexible sealing gasket made of materials such as silica gel, which can prevent water from directly impacting the end cover 100, and plays a role in damping and reducing noise. In this embodiment, water flow impacts first seal structure 120 one side, and first seal structure 120 is impacted by water flow and takes place deformation, and flexible arch 108 is impacted to influence simultaneously and contacts with end cover 100, also deforms, and first seal structure 120 utilizes the deformation of self and the deformation absorption impact of flexible arch 108 promptly, plays the cushioning effect, and then plays vibration/noise reduction's effect.
Preferably, the flexible protrusions are cylindrical. Set up flexible arch into cylindric, have the advantage of easily processing, simultaneously, cylindric arch also can take place more even deformation in circumference when the atress, and then promotes vibration/noise reduction's effect.
As an optional implementation manner of this embodiment, an annular groove 303 and a protruding ring 304 are provided on the pressure stabilizing cavity 302, the protruding ring 304 abuts against the second sealing structure 400, an adapter ring 401 is provided at an edge of the second sealing structure 400, and the adapter ring 401 is matched with the annular groove 303. The second sealing structure 400 is fixed by the mounting part 102 in the axial direction, is fixed by matching the adapter ring 401 with the ring groove 303, and further realizes double sealing in the axial direction and the radial direction in the pressure stabilizing cavity 302 by matching with the extrusion action of the convex ring 304 and the end part of the mounting part 102.
As an optional implementation manner of this embodiment, the end cap 100 is provided with a second protruding portion 130, the main housing 100 is provided with a first protruding rib 131 and a second concave ring groove 134, the first sealing structure 120 is provided with a first concave ring groove 132 and a third protruding portion 133, the second protruding portion 130 abuts against the first sealing structure 120, the first protruding rib 131 is matched with the first concave ring groove 132, the third protruding portion 133 is matched with the second concave ring groove 134, and the second protruding portion 130 and the first protruding rib 131 are arranged oppositely.
In this embodiment, the end cap 100 and the main housing 100 are engaged with each other to further fix the first sealing structure 120, and further, the end cap 100 and the main housing 100 are engaged with each other to fix the first sealing structure 120, so that the first sealing structure 120 is deformed sufficiently to achieve a better sealing effect.
In this embodiment, the second protruding portion 130 and the first protruding rib 131 are annular protrusions arranged oppositely, the annular protrusions are offset from the first sealing structure 120, and the first sealing structure 120 is clamped, so that the first sealing structure 120 is deformed sufficiently, and gaps between the second protruding portion 130 and the first protruding rib 131 are filled, so that a better sealing effect is achieved. Further, the first rib 131 is matched with the first concave ring groove 132, and the third protrusion 133 is matched with the second concave ring groove 134, so that the limiting effect of the first sealing structure 120 is achieved.
As an optional implementation manner of this embodiment, a pressure adjusting portion is disposed in the mounting portion 102, the pressure adjusting portion includes a fixing member 110 fixedly disposed in the mounting portion 102, an elastic member 111 is disposed on one side of the fixing member 110, a valve element 112 is movably disposed at one end of the elastic member 111, and the second sealing structure 400 is disposed on one side of the valve element 112. In this embodiment, pressure regulating portion is the structure that plays the pressure release effect to prevent that the hydraulic pressure is too big, cause the influence to the pump head, as preferred, pressure regulating portion can be for the relief valve structure, can in time discharge water liquid when pressure is too big, in order to realize the pressure release.
In the embodiment, the pressure regulating portion is a preferred embodiment, when the hydraulic pressure is too large, the hydraulic pressure acts on the second sealing structure 400, and then the valve element 302 is pushed to extrude the elastic member 301 such as a spring, so that the pressure stabilizing cavity 302 is conducted, and water flow is led out along the through hole of the pressure stabilizing cavity 302, so as to realize pressure relief.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A seal structure comprising more than one first seal structure and more than one second seal structure;
the first sealing structure and the second sealing structure are used for sealing the surfaces of the structures;
the first sealing structure is matched with the first region of the structure surface and used for sealing the first region of the structure surface;
the second sealing structure is matched with the region II of the surface of the structure and used for sealing the region II of the surface of the structure.
2. A sealing arrangement according to claim 1, wherein the first and second sealing arrangements are of polymeric material.
3. A sealing arrangement according to claim 1, wherein said first and second sealing arrangements are both sheet-like.
4. A seal according to claim 1, wherein said first seal is separate from said second seal.
5. A pump head construction comprising a sealing arrangement according to any of claims 1 to 4, comprising an end cap and a main housing, the first sealing arrangement being provided between the main housing and the end cap; a diaphragm chamber assembly is arranged on one side of the main shell, a pressure stabilizing cavity is arranged in the main shell and is communicated with the diaphragm chamber assembly, an installation part is arranged on the end cover and is matched and fixed with the pressure stabilizing cavity, and a second sealing structure is arranged among the installation part, the pressure stabilizing cavity and the pressure regulating part;
the main shell is provided with a water inlet and a water outlet, the main shell is internally provided with a suction cavity and a discharge cavity, the water inlet is communicated with the suction cavity, and the water outlet is communicated with the discharge cavity; the suction and discharge chambers communicate through the diaphragm chamber assembly.
6. A pump head structure as claimed in claim 5, wherein a radial seal on the first seal abuts the pumping chamber and the mounting portion, a projection is provided on the radial seal which abuts the mounting portion, and an axial seal on the first seal abuts the pumping chamber and the end cap.
7. A pump head structure as claimed in claim 5, wherein the first seal structure is provided with a third limiting portion, the main housing is provided with a first limiting portion, the end cap is provided with a second limiting portion, and the first, second and third limiting portions are all matched with each other.
8. A pump head structure as claimed in claim 5, wherein a gap is provided between the first sealing means and the end cap, and the first sealing means is provided with a flexible projection on one side of the gap, the flexible projection being adapted to abut the end cap.
9. A pump head structure as claimed in claim 5, wherein the pumping chamber is provided with an annular groove and a collar, the collar abuts against the second sealing structure, and an adapter ring is provided on the edge of the second sealing structure, the adapter ring matching with the annular groove.
10. A pump head structure as claimed in any one of claims 5 to 9, wherein the end cap has a second projection, the main housing has a first rib and a second concave ring groove, the first seal structure has a first concave ring groove and a third projection, the second projection abuts against the first seal structure, the first rib mates with the first concave ring groove, the third projection mates with the second concave ring groove, and the second projection and the first rib face each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123073536.0U CN216741956U (en) | 2021-12-08 | 2021-12-08 | Seal structure and pump head structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123073536.0U CN216741956U (en) | 2021-12-08 | 2021-12-08 | Seal structure and pump head structure |
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| Publication Number | Publication Date |
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| CN216741956U true CN216741956U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202123073536.0U Active CN216741956U (en) | 2021-12-08 | 2021-12-08 | Seal structure and pump head structure |
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| CN (1) | CN216741956U (en) |
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2021
- 2021-12-08 CN CN202123073536.0U patent/CN216741956U/en active Active
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