CN220599998U - Pump shell assembly and peristaltic pump - Google Patents
Pump shell assembly and peristaltic pump Download PDFInfo
- Publication number
- CN220599998U CN220599998U CN202322117370.0U CN202322117370U CN220599998U CN 220599998 U CN220599998 U CN 220599998U CN 202322117370 U CN202322117370 U CN 202322117370U CN 220599998 U CN220599998 U CN 220599998U
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- China
- Prior art keywords
- pump
- housing assembly
- conical surface
- cover
- pump housing
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- 230000002572 peristaltic effect Effects 0.000 title claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of liquid delivery, and particularly discloses a pump shell assembly and a peristaltic pump, comprising: the pump body is provided with a containing groove, and a notch of the containing groove is provided with a first conical surface; the pump cover is used for sealing the notch of the accommodating groove and is provided with a positioning boss inserted into the notch; the circumferential surface of the positioning boss is a second conical surface matched with the first conical surface. The pump shell assembly and the peristaltic pump provided by the utility model can effectively improve the coaxiality of the pump body and the pump cover after being assembled.
Description
Technical Field
The utility model relates to the technical field of liquid delivery, in particular to a pump shell assembly and a peristaltic pump.
Background
Referring to fig. 1, the existing peristaltic pump includes:
the pump body 101, the pump body 101 is provided with an open accommodating groove 1011, and the opening of the accommodating groove 1011 is in a vertical cylindrical shape;
a pump cover 102, wherein the pump cover 102 is used for sealing the opening of the accommodating groove 1011, and the pump cover 102 is provided with a positioning boss 1021 inserted into the accommodating groove 1011; further, the circumferential surface of the positioning boss 1021 is also in the shape of a vertical cylindrical surface.
In theory, after the positioning boss 1021 is inserted into the opening of the accommodation groove 1011, the axes of both the pump body 101 and the pump cover 102 should coincide. In fact, the machining precision is limited, so that the positioning boss 1021 can be smoothly inserted into the accommodating groove 1011, and it is generally limited that the outer diameter of the positioning boss 1021 can only be negatively deviated and the inner diameter of the accommodating groove 1011 can only be positively deviated during machining. This results in the inner diameter of the receiving groove 1011 being slightly larger than the outer diameter of the positioning boss 1021.
Therefore, after the pump cover 102 is assembled to the pump body 101, the pump cover 102 and the pump body 101 can be positioned relatively to a certain extent in the radial direction, so that the axes of the pump body 101 and the pump cover 102 cannot be overlapped, that is, the coaxiality of the pump body 101 and the pump cover 102 after being assembled is too low in the prior art.
The above information disclosed in this background section is only included to enhance understanding of the background of the disclosure and therefore may contain information that does not form the prior art that is presently known to those of ordinary skill in the art.
Disclosure of Invention
An object of the present utility model is to provide a pump housing assembly and peristaltic pump that effectively improves the coaxiality of the pump body and the pump cover after assembly.
To achieve the above object, the present utility model provides a pump housing assembly and a peristaltic pump, comprising:
the pump body is provided with a containing groove, and a notch of the containing groove is provided with a first conical surface;
the pump cover is used for sealing the notch of the accommodating groove and is provided with a positioning boss inserted into the notch; the circumferential surface of the positioning boss is a second conical surface matched with the first conical surface.
Optionally, the diameter sizes of the first conical surface and the second conical surface are gradually reduced from top to bottom.
Optionally, the pump body and the pump cover are in snap connection.
Optionally, a limiting boss is arranged on the outer side of the pump body, and a hook plate for being clamped with the limiting boss is arranged at the edge position of the pump cover;
when the limiting boss is clamped into the hook plate, the first conical surface and the second conical surface are in interference fit connection.
Optionally, the pump body and the pump cover are fastened and connected through a locking bolt.
Optionally, the axis of the locking bolt is parallel to the axis of both the first conical surface and the second conical surface.
In another aspect, there is provided a peristaltic pump comprising:
the pump shell component;
the rotary pump head is rotatably arranged in the accommodating groove of the pump shell assembly;
the two ends of the soft rubber tube are positioned outside the pump shell assembly, and the middle part of the soft rubber tube is positioned between the rotary pump head and the groove wall of the accommodating groove;
a driving motor mounted to an exterior of the pump housing assembly; the driving shaft of the driving motor stretches into the accommodating groove and is in transmission connection with the rotary pump head, and the driving shaft is used for driving the rotary pump head to rotate and extruding the soft rubber tube.
Optionally, a positioning column is disposed at an axis of the pump cover of the pump housing assembly, and the rotary pump head is sleeved on the positioning column and is rotationally connected with the positioning column.
Optionally, a shaft penetrating hole is formed at the axis of the pump body of the pump shell assembly, and the driving shaft of the driving motor extends into the accommodating groove through the shaft penetrating hole.
The utility model has the beneficial effects that: the utility model provides a pump case subassembly and peristaltic pump, set up first conical surface at the pump body, set up the second conical surface at the pump cover, when assembling, as long as make first conical surface and second conical surface closely laminate, can guarantee to possess higher axiality between pump body and the pump cover, not only avoided taking place radial displacement between pump body and the pump cover, can also greatly reduce the assembly degree of difficulty, improvement production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a peristaltic pump of the prior art;
FIG. 2 is an overall schematic of a peristaltic pump provided by an embodiment;
FIG. 3 is an exploded schematic view of a peristaltic pump according to an embodiment;
FIG. 4 is a schematic view of a pump body according to an embodiment;
fig. 5 is a schematic structural view of a pump cover according to an embodiment.
In the figure:
1. a pump housing assembly;
101. a pump body; 1011. a receiving groove; 1011a, a first conical surface; 1012. a limit boss;
102. a pump cover; 1021. positioning the boss; 1021a, a second conical surface; 1022. positioning columns; 1023. a hook plate;
2. rotating the pump head;
3. a soft rubber tube;
4. and driving the motor.
Detailed Description
In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it will be understood that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Furthermore, the terms "long," "short," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, for convenience of description of the present utility model, and are not intended to indicate or imply that the apparatus or elements referred to must have this particular orientation, operate in a particular orientation configuration, and thus should not be construed as limiting the utility model.
The present utility model will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the utility model and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the utility model.
The utility model provides a pump shell assembly and a peristaltic pump, which are suitable for application scenes of conveying liquid such as water, and can effectively improve coaxiality of a pump body and a pump cover after the pump body and the pump cover are assembled.
Referring to fig. 2 and 3, in this embodiment, the peristaltic pump includes a pump housing assembly 1, a rotary pump head 2, a flexible hose 3, and a drive motor 4.
The pump housing assembly 1 includes a pump body 101 and a pump cover 102. The pump body 101 is provided with a receiving groove 1011, the pump cover 102 is used for sealing the notch of the receiving groove 1011, and the pump cover 102 is provided with a positioning boss 1021 inserted into the notch.
The rotary pump head 2 is positioned in the accommodating groove 1011. A positioning column 1022 is arranged at the axis of the pump cover 102, and the rotary pump head 2 is sleeved on the positioning column 1022 and is in rotary connection with the positioning column 1022.
The two ends (inlet and outlet) of the flexible hose 3 are positioned outside the pump housing assembly 1, and the middle part is positioned between the rotary pump head 2 and the groove wall of the accommodating groove 1011.
The driving motor 4 is arranged outside the pump shell assembly 1; the axis of the pump body 101 is provided with a through shaft hole, and the driving shaft of the driving motor 4 extends into the accommodating groove 1011 through the through shaft hole and is in transmission connection with the rotary pump head 2, so as to drive the rotary pump head 2 to rotate and extrude the flexible rubber tube 3.
In the peristaltic pump provided by this embodiment, after the driving motor 4 is started, the rotary pump head 2 can be driven to rotate by taking the positioning column 1022 as the center, and the rotary pump head 2 can always squeeze the flexible pipe 3 when rotating, so that the liquid in the flexible pipe 3 flows along with the rotating direction of the rotary pump head 2, thereby realizing liquid conveying.
It should be noted that, the rotary pump head 2 needs to be in transmission connection with the driving shaft of the driving motor 4, so the coaxiality between the positioning post 1022 and the through shaft hole (i.e. the coaxiality between the pump cover 102 and the pump body 101) is very important, if the coaxiality is too low, the differential wear of the rotary pump head 2 will occur due to light weight, and the locking failure of the rotary pump head 2 may be caused due to heavy weight.
In order to ensure high coaxiality between the pump cover 102 and the pump body 101, the pump housing assembly 1 provided in this embodiment adopts a conical surface matching mode. Specifically, referring to fig. 4, the notch of the accommodating groove 1011 is provided with a first conical surface 1011a; referring to fig. 5, the circumferential surface of the positioning boss 1021 is a second conical surface 1021a matching the first conical surface 1011a. Further, the diameter sizes of the first tapered surface 1011a and the second tapered surface 1021a are gradually reduced from top to bottom.
Therefore, when the pump cover 102 is put into the pump body 101 in the axial direction, the pump cover 102 and the pump body 101 can be automatically coaxial by only pressing the second conical surface 1021a against the first conical surface 1011a, and the difficulty in shaft alignment during assembly is greatly simplified. Therefore, the pump housing assembly 1 and the peristaltic pump provided by the embodiment can effectively improve the coaxiality of the pump body 101 and the pump cover 102 after being assembled.
In this embodiment, the pump body 101 and the pump cover 102 are connected by a snap-fit connection. Further, a limiting boss 1012 is arranged on the outer side of the pump body 101, and a hook plate 1023 for being clamped with the limiting boss 1012 is arranged at the edge position of the pump cover 102; when the limiting boss 1012 is clamped into the hook plate 1023, the first conical surface 1011a and the second conical surface 1021a are connected in an interference fit manner, so that the second conical surface 1021a can be ensured to press the first conical surface 1011a.
Of course, in some other embodiments, the pump body 101 and the pump cover 102 may be fastened by a locking bolt. Specifically, the axis of the locking bolt is parallel to the axis of both the first tapered surface 1011a and the second tapered surface 1021a. The second conical surface 1021a can be pressed against the first conical surface 1011a by tightening the locking bolt, so that higher coaxiality between the pump body 101 and the pump cover 102 is ensured.
In summary, the pump housing assembly 1 and peristaltic pump provided in this embodiment have the beneficial effects that: when the pump body 101 is provided with the first conical surface 1011a and the pump cover 102 is provided with the second conical surface 1021a, the first conical surface 1011a and the second conical surface 1021a are tightly attached to each other, so that high coaxiality between the pump body 101 and the pump cover 102 can be ensured, radial displacement between the pump body 101 and the pump cover 102 is avoided, assembly difficulty can be greatly reduced, and production efficiency is improved.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present utility model, and they are not intended to limit the scope of the present utility model, and all equivalent embodiments or modifications that do not depart from the spirit of the present utility model should be included in the scope of the present utility model.
Claims (9)
1. A pump housing assembly, comprising:
the pump body (101), the pump body (101) is provided with a containing groove (1011), and the notch of the containing groove (1011) is provided with a first conical surface (1011 a);
a pump cover (102), wherein the pump cover (102) is used for sealing a notch of the accommodating groove (1011), and the pump cover (102) is provided with a positioning boss (1021) inserted into the notch; the circumferential surface of the positioning boss (1021) is a second conical surface (1021 a) matched with the first conical surface (1011 a).
2. The pump housing assembly of claim 1, wherein the diameter dimension of both the first tapered surface (1011 a) and the second tapered surface (1021 a) decreases gradually from top to bottom.
3. Pump housing assembly according to claim 1, wherein the pump body (101) and pump cover (102) are snap-connected.
4. A pump housing assembly according to claim 3, wherein a limit boss (1012) is arranged on the outer side of the pump body (101), and a hook plate (1023) for being clamped with the limit boss (1012) is arranged at the edge position of the pump cover (102);
when the limit boss (1012) is clamped into the hook plate (1023), the first conical surface (1011 a) and the second conical surface (1021 a) are connected in an interference fit mode.
5. Pump housing assembly according to claim 1, wherein the pump body (101) and pump cover (102) are fastened by means of a locking bolt.
6. The pump housing assembly of claim 5, wherein the axis of the lock bolt is parallel to the axis of both the first tapered surface (1011 a) and the second tapered surface (1021 a).
7. A peristaltic pump, comprising:
the pump housing assembly (1) of any of claims 1 to 6;
the rotary pump head (2) is rotatably arranged in the accommodating groove (1011) of the pump shell assembly (1);
the two ends of the soft rubber tube (3) are positioned outside the pump shell assembly (1), and the middle part of the soft rubber tube is positioned between the rotary pump head (2) and the groove wall of the accommodating groove (1011);
a drive motor (4), the drive motor (4) being mounted outside the pump housing assembly (1); the driving shaft of the driving motor (4) stretches into the accommodating groove (1011) and is in transmission connection with the rotary pump head (2) and is used for driving the rotary pump head (2) to rotate and extruding the flexible rubber tube (3).
8. Peristaltic pump according to claim 7, characterized in that a positioning post (1022) is provided at the axis of the pump cover (102) of the pump housing assembly (1), and the rotary pump head (2) is sleeved on the positioning post (1022) and is rotationally connected to the positioning post (1022).
9. Peristaltic pump according to claim 7, characterized in that the pump body (101) of the pump housing assembly (1) is provided with a through-shaft hole at its axis, through which the drive shaft of the drive motor (4) extends into the receiving slot (1011).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117370.0U CN220599998U (en) | 2023-08-08 | 2023-08-08 | Pump shell assembly and peristaltic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322117370.0U CN220599998U (en) | 2023-08-08 | 2023-08-08 | Pump shell assembly and peristaltic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220599998U true CN220599998U (en) | 2024-03-15 |
Family
ID=90166807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322117370.0U Active CN220599998U (en) | 2023-08-08 | 2023-08-08 | Pump shell assembly and peristaltic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220599998U (en) |
-
2023
- 2023-08-08 CN CN202322117370.0U patent/CN220599998U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |