CN220118284U - Intermediate assembly of diaphragm pump and pneumatic diaphragm pump - Google Patents
Intermediate assembly of diaphragm pump and pneumatic diaphragm pump Download PDFInfo
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- CN220118284U CN220118284U CN202321576137.2U CN202321576137U CN220118284U CN 220118284 U CN220118284 U CN 220118284U CN 202321576137 U CN202321576137 U CN 202321576137U CN 220118284 U CN220118284 U CN 220118284U
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- air port
- diaphragm pump
- shaft sleeve
- ventilation
- sleeve
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- 238000009423 ventilation Methods 0.000 claims abstract description 67
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a diaphragm pump intermediate assembly and a pneumatic diaphragm pump, wherein the diaphragm pump intermediate assembly comprises an intermediate body, a ventilation shaft sleeve which is inserted in a central hole of the intermediate body in a sliding manner, and a diaphragm connecting shaft which is inserted in the ventilation shaft sleeve; the intermediate body comprises a first air port which is communicated with the central hole from the upper end, a second air port which is communicated with the central hole from the lower end, and a third air port and a fourth air port which are arranged at one side of the second air port at intervals, wherein the second air port corresponds to the first air port in position; the ventilation shaft sleeve and the end surfaces of the two sides of the small end of the central hole form left and right limiting; the circumference of the ventilation shaft sleeve is provided with a plurality of sealing ring grooves and two annular ventilation gaps at intervals along the length direction, and a sealing ring is sleeved in each sealing ring groove. The utility model has simpler structure, less number of required parts, convenient disassembly and assembly, more efficient and convenient assembly, maintenance and maintenance of the whole diaphragm pump, can reduce the occurrence of leakage problem and has remarkable effect on improving the liquid pumping precision.
Description
Technical Field
The utility model belongs to the technical field of cooling equipment, and particularly relates to a diaphragm pump intermediate assembly.
Background
The diaphragm pump changes the fluid flow by means of power, is installed in various use places and is used for pumping various media which cannot be pumped by conventional pumps, and the pneumatic diaphragm pump has the characteristics of corrosion resistance, wear resistance and zero leakage, so that the pneumatic diaphragm pump is widely applied to industries such as petroleum, chemical industry, printing and dyeing, medicines and the like and is used for conveying liquids such as petroleum, chemical industry and the like.
The traditional diaphragm pump is more in parts, so that the assembly, maintenance and repair are complicated, the machining and assembly precision requirements of the excessive parts on the parts are high, the air leakage problem is easy to occur, and the energy waste is caused.
Disclosure of Invention
In order to solve the above technical problems, the present utility model provides a diaphragm pump intermediate assembly and a pneumatic diaphragm pump, which aim to solve or improve at least one of the above technical problems.
To achieve the above object, in one aspect, the present utility model provides a diaphragm pump intermediate assembly comprising:
the middle body is provided with a central hole penetrating through the middle part of the middle body, and the central hole comprises a small hole end and a large hole end with different pore diameters;
a first air port penetrating from the upper end of the intermediate body to the center hole;
the second air port penetrates through the central hole from the lower end of the intermediate body and corresponds to the first air port in position;
the third air ports are arranged at intervals on one side, close to the large end of the hole, of the second air port, and penetrate through the center hole from the lower end of the intermediate body;
the fourth air port is arranged at one side of the third air port far away from the second air port at intervals, and penetrates through the center hole from the lower end of the intermediate body;
the ventilation shaft sleeve is inserted into the central hole in a sliding manner, and forms left and right limiting with the end surfaces of the two sides of the small end of the hole; the periphery of the ventilation shaft sleeve is provided with a plurality of sealing ring grooves at intervals along the length direction, a sealing ring is sleeved in each sealing ring groove, two annular ventilation gaps are arranged at intervals along the length direction of the periphery of the ventilation shaft sleeve, and at least one sealing ring groove is arranged between the two annular ventilation gaps at intervals;
the diaphragm connecting shaft is inserted into the ventilation shaft sleeve and forms friction contact with the inner wall of the ventilation shaft sleeve.
Preferably, the ventilation shaft sleeve comprises a shaft sleeve small end and a shaft sleeve large end, wherein the shaft sleeve small end and the shaft sleeve large end are different in aperture, the shaft sleeve small end is inserted into the hole small end of the central hole, and the outer diameter of the shaft sleeve large end is larger than the inner diameter of the hole small end.
Preferably, the small end of the hole is far away from one side of the large end of the hole, a fixed snap spring groove is formed in the position, close to the end, of the small end of the shaft sleeve along the circumferential direction of the small end of the shaft sleeve, a snap spring is installed in the fixed snap spring groove, and the snap spring are limited to form a limit along the sliding direction of the ventilation shaft sleeve.
Preferably, a slot is formed in the middle of the diaphragm connecting shaft along the circumferential direction of the diaphragm connecting shaft, and a sealing ring in contact with the inner wall of the ventilation shaft sleeve is arranged in the slot.
Preferably, the ventilation shaft sleeve is provided with three sealing ring grooves, and the three sealing ring grooves and the two annular ventilation gaps are alternately arranged at intervals.
Preferably, the width of the annular ventilation notch near the small end of the shaft sleeve can accommodate the simultaneous entry of the second air port and the third air port, and the width of the annular ventilation notch near the large end of the shaft sleeve can accommodate the simultaneous entry of the fourth air port and the third air port.
Compared with the prior art, the diaphragm pump intermediate assembly has the following advantages and technical effects: the structure is simpler, and required spare part quantity is fewer, and the dismouting of being convenient for makes the equipment of whole diaphragm pump, maintenance and maintenance more high-efficient convenient to can reduce production and use cost to effectively reduce the emergence of leaking the problem, all have apparent effect to the precision that improves pump liquid and promote product quality.
The utility model also provides a pneumatic diaphragm pump, which comprises a pump body shell, wherein the upper end and the lower end of the pump body shell are respectively provided with a liquid outlet and a liquid inlet; the ventilation main valve is arranged between the outlet pipe and the inlet pipe of the pump body shell; a diaphragm; the diaphragm pump comprises a pump body shell, a diaphragm pump intermediate assembly and a diaphragm pump assembly, wherein the diaphragm pump intermediate assembly is arranged at the inner middle position of the pump body shell; the diaphragms are arranged on two sides of the intermediate body and positioned between the intermediate body and the pump body shell to form left and right diaphragm chambers.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an intermediate assembly of a diaphragm pump according to embodiment 1 of the present utility model;
FIG. 2 is a schematic structural diagram of an intermediate;
FIG. 3 is a schematic view of a ventilation sleeve;
FIG. 4 is a schematic view of the position of the ventilation sleeve at the small end;
FIG. 5 is a schematic view of the position of the ventilation sleeve at the large end;
FIG. 6 is a schematic structural view of an air-operated diaphragm pump according to embodiment 2 of the present utility model;
FIG. 7 is a cross-sectional view at B-B in FIG. 6;
fig. 8 is a cross-sectional view at C-C in fig. 7.
Reference numerals illustrate: 1. an intermediate; 2. a ventilation shaft sleeve; 3. a diaphragm connecting shaft; 4. clamping springs; 5. a seal ring; 6. a main ventilation valve; 7. a ventilation shaft; 8. a diaphragm; 9. a rear pressing plate; 101. a small end of the hole; 102. a hole big end; 103. a limit step; 104. limiting the clamp spring; 201. a small end of the shaft sleeve; 202. the large end of the shaft sleeve; 203. sealing ring groove; 204. an annular vent gap; 205. fixing the clamp spring groove; 206. limiting the left side of the large end; q1, left diaphragm chamber; q2, right diaphragm chamber; t1, a first air port; t2, a second air port; t3, a third air port; t4, a fourth air port; t5, a fifth air port; t6, a sixth air port; t7, a seventh air port; t8, eighth air port; t9, a ninth air port; t10, tenth air port.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Example 1:
referring to fig. 1 to 5, fig. 1 to 5 show a schematic structural view of an intermediate assembly of a diaphragm pump according to embodiment 1 of the present utility model.
FIG. 1 is a schematic diagram of the overall structure of a diaphragm pump intermediate assembly. The intermediate component of the diaphragm pump comprises an intermediate body 1, a ventilation shaft sleeve 2, a diaphragm connecting shaft 3, a sealing ring 5 and a clamp spring 4.
As shown in fig. 2, the intermediate body 1 has a central hole for accommodating the ventilation shaft sleeve 2 and the diaphragm connecting shaft 3, the central hole is divided into two large and small ends, the central hole comprises a small hole end 101 and a large hole end 102, the aperture of the small hole end 101 is smaller than that of the large hole end 102, a junction position of the large hole end 102 of the small hole end 10 is provided with a limit step 103, the limit step 103 is beyond one side of the large hole end 102, a left limit is formed on the ventilation shaft sleeve 3 sliding from the large hole end 102, an opening with an outer diameter larger than that of the small hole end 101 is formed at the left inlet of the small hole end 101, the end surface of the small hole end 101 forms a clamp spring limit 104, 4 ventilation holes are formed on the aperture of the large hole end 102, the first air port T1 facing upwards, the second air port T2, the third air port T3 and the fourth air port T4 are located above the second air port T2, and the two air ports are located on the same vertical section.
As shown in fig. 3, the ventilation shaft sleeve 2 is an annular sleeve with a certain length and is matched with the central hole of the intermediate body 1, the peripheral side of the ventilation shaft sleeve 2 comprises three sealing ring grooves 203 and two annular ventilation gaps 204, the three sealing ring grooves 203 are distributed at intervals along the length direction of the ventilation shaft sleeve 2, the two annular ventilation gaps 204 are annular grooves shrinking from the peripheral side to the center of the ventilation shaft sleeve 2 and have a certain width, and the two annular ventilation gaps 204 are respectively positioned between the two adjacent sealing ring grooves 203; the size of the ventilation shaft sleeve 2 is divided into two ends, wherein the size of the ventilation shaft sleeve comprises a shaft sleeve small end 201 and a shaft sleeve large end 202, a large end left limit 206 is formed at the joint of the shaft sleeve small end 201 and the shaft sleeve large end 202, and a fixed clamp spring groove 205 is formed at the periphery of the ventilation shaft sleeve 2 near one side of the shaft sleeve small end 201 and used for clamping the clamp spring 4; the three sealing rings 5 are respectively arranged in the three sealing ring grooves 203 of the ventilation shaft sleeve 2, and one clamping spring 4 is arranged in the fixed clamping spring groove 205.
The diaphragm connecting shaft 3 is a cylindrical shaft body, a ring groove is formed in the middle shaft body and is used for sleeving a sealing ring 5, the diaphragm connecting shaft 3 is arranged in the ventilation shaft sleeve 2 and is sealed through the sealing ring 5 arranged in the ring groove, and the inner wall of the ventilation shaft sleeve 2 is coated outside the diaphragm connecting shaft 3, so that the diaphragm connecting shaft has larger friction force and moves along with the reciprocating motion of the diaphragm connecting shaft 3.
The air exchange shaft sleeve 2 is arranged in the intermediate body 1, the diaphragm connecting shaft 3 is arranged in the air exchange shaft sleeve 2, and the whole diaphragm pump intermediate body assembly is formed by combining the diaphragm pump intermediate body assembly and other parts of the diaphragm pump, so that the diaphragm connecting shaft 3 and the air exchange shaft sleeve 2 move left and right to realize the air exchange effect, and the diaphragm pump is enabled to reciprocate.
In the first position, as shown in fig. 4, the ventilation shaft sleeve 2 is close to the right end of the central hole of the intermediate body 1, the clamp spring 4 contacts with the clamp spring limit 104 of the intermediate body 1 to play a limiting role, at this time, the second air port T2 is communicated with the third air port T3, and the third air port T3 is in a pressurized air inlet state.
In the second position, as shown in fig. 5, the ventilation shaft sleeve 2 is close to the left end of the central hole of the intermediate body 1, and the limit step 103 of the intermediate body 1 contacts with the left limit 206 of the large end of the ventilation shaft sleeve 2 to perform a limit function, at this time, the third air port T3 is communicated with the fourth air port T4, and the third air port T3 is in an exhaust state without pressure.
Compared with the prior art, the diaphragm pump intermediate assembly of the embodiment has fewer parts, is simpler to assemble and disassemble, and is more efficient and convenient to assemble and maintain.
Example 2:
referring to fig. 6 to 8, fig. 6 to 8 show a schematic structural view of an air-operated diaphragm pump according to embodiment 2 of the present utility model.
As shown in fig. 6, the pneumatic diaphragm pump comprises a pump body shell, wherein a liquid outlet and a liquid inlet are respectively arranged at the upper end and the lower end of the pump body shell; the liquid outlet is connected with the outlet pipe, the liquid inlet is connected with the inlet pipe, a ventilation main valve 6 is arranged between the outlet pipe and the inlet pipe of the pump body shell, and the ventilation main valve 6 comprises a ventilation shaft 7; the diaphragm pump assembly of embodiment 1, wherein the diaphragm pump assembly is disposed at an inner middle position of the pump body housing; the diaphragms 8 are arranged on two sides of the intermediate body 1 and positioned between the intermediate body 1 and the pump body shell to form a left diaphragm chamber Q1 and a right diaphragm chamber Q2; the pneumatic diaphragm pump is also provided with a plurality of air ports, such as a first air port T1, a second air port T2, a third air port T3, a fourth air port T4, a fifth air port T5, a sixth air port T6, a seventh air port T7, an eighth air port T8, a ninth air port T9 and a tenth air port T10 in the figures 6 to 8.
The working principle of the pneumatic diaphragm pump of the embodiment of the utility model is as follows:
the intermediate component of the diaphragm pump cooperates with other parts to realize the reciprocating operation of the pneumatic diaphragm pump. As shown in fig. 6 to 8, compressed air is introduced into the first port T1, passes through the second port T2, the fifth port T5 enters the main ventilation valve 6, then the seventh port T7 enters the left diaphragm chamber Q1 of fig. 8, the diaphragm 8 expands, the diaphragm connecting shaft 3 is driven to move to the left, the rear pressing plate 9 on the right contacts the large end 202 of the sleeve, the ventilation sleeve 2 is driven to move to the left, after reaching the limiting point, the third port T3 and the fourth port T4 are communicated, the fourth port T4 is connected with the tenth port T10, the tenth port T10 is connected with the outdoor, the third port T3 is connected with the ninth port T9, namely the ninth port T9 is connected with the outdoor, at this time, the large end of the ventilation shaft 7 is in a non-pressure exhaust state, and the small end of the ventilation shaft 7 is connected with the first port T1, the ventilation shaft 7 is driven to move to the left, the fifth port T5 is connected with the sixth port T6, compressed air enters the right diaphragm chamber Q2 after reaching the limiting point, the right diaphragm chamber Q2 expands, the diaphragm connecting shaft 3 is driven to move to the right, the left side of the fifth port T5 is connected with the large end 2, namely the left end 2 is driven to move to the small end 7 to the left, and the small end is connected with the fourth port T2, and the left is connected with the large end 2, which is connected with the large end 2, and the left, which is connected with the large end 2 is in a left, and is connected with the left. This reciprocally drives the diaphragm pump to operate continuously.
In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model. Unless specifically stated and limited otherwise, the terms "connected," "coupled" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (7)
1. A diaphragm pump intermediate assembly, comprising:
the middle body is provided with a central hole penetrating through the middle part of the middle body, and the central hole comprises a small hole end and a large hole end with different pore diameters;
a first air port penetrating from the upper end of the intermediate body to the center hole;
the second air port penetrates through the central hole from the lower end of the intermediate body and corresponds to the first air port in position;
the third air ports are arranged at intervals on one side, close to the large end of the hole, of the second air port, and penetrate through the center hole from the lower end of the intermediate body;
the fourth air port is arranged at one side of the third air port far away from the second air port at intervals, and penetrates through the center hole from the lower end of the intermediate body;
the ventilation shaft sleeve is inserted into the central hole in a sliding manner, and forms left and right limiting with the end surfaces of the two sides of the small end of the hole; the periphery of the ventilation shaft sleeve is provided with a plurality of sealing ring grooves at intervals along the length direction, a sealing ring is sleeved in each sealing ring groove, two annular ventilation gaps are arranged at intervals along the length direction of the periphery of the ventilation shaft sleeve, and at least one sealing ring groove is arranged between the two annular ventilation gaps at intervals;
the diaphragm connecting shaft is inserted into the ventilation shaft sleeve and forms friction contact with the inner wall of the ventilation shaft sleeve.
2. A diaphragm pump intermediate assembly according to claim 1, wherein the ventilation sleeve comprises a sleeve small end and a sleeve large end of different bore diameters, the sleeve small end being inserted into the bore small end of the central bore, the sleeve large end having an outer diameter greater than an inner diameter of the bore small end.
3. The diaphragm pump intermediate assembly according to claim 2, wherein a clamp spring limit is arranged on one side of the small end of the hole, which is far away from the large end of the hole, a fixed clamp spring groove is formed in the periphery of the small end of the shaft sleeve, which is close to the end of the shaft sleeve, a clamp spring is arranged in the fixed clamp spring groove, and the clamp spring limit form a limit along the sliding direction of the ventilation shaft sleeve.
4. The diaphragm pump intermediate assembly according to claim 1, wherein a groove is formed in the middle of the diaphragm connecting shaft along the circumferential direction of the diaphragm connecting shaft, and a sealing ring in contact with the inner wall of the ventilation shaft sleeve is arranged in the groove.
5. A diaphragm pump intermediate assembly according to claim 1, wherein the ventilation sleeve is provided with three seal ring grooves which are alternately spaced from two of the annular ventilation apertures.
6. A diaphragm pump intermediate assembly according to claim 2, wherein the width of the annular vent gap adjacent the small end of the sleeve accommodates simultaneous entry of the second and third ports, and the width of the annular vent gap adjacent the large end of the sleeve accommodates simultaneous entry of the fourth and third ports.
7. A pneumatic diaphragm pump comprising:
the upper end and the lower end of the pump body shell are respectively provided with a liquid outlet and a liquid inlet;
the ventilation main valve is arranged between the outlet pipe and the inlet pipe of the pump body shell;
a diaphragm;
a diaphragm pump intermediate assembly according to any one of claims 1 to 6, said diaphragm pump intermediate assembly being disposed at an internal intermediate position of the pump body housing; the diaphragms are arranged on two sides of the intermediate body and positioned between the intermediate body and the pump body shell to form left and right diaphragm chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321576137.2U CN220118284U (en) | 2023-06-20 | 2023-06-20 | Intermediate assembly of diaphragm pump and pneumatic diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321576137.2U CN220118284U (en) | 2023-06-20 | 2023-06-20 | Intermediate assembly of diaphragm pump and pneumatic diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118284U true CN220118284U (en) | 2023-12-01 |
Family
ID=88915455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321576137.2U Active CN220118284U (en) | 2023-06-20 | 2023-06-20 | Intermediate assembly of diaphragm pump and pneumatic diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220118284U (en) |
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2023
- 2023-06-20 CN CN202321576137.2U patent/CN220118284U/en active Active
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