High-stability air bag pump
By introducing a valve core, spring, and valve seat structure into the airbag pump, combined with the movement of the bellows driven by the cylinder, the problems of valve assembly instability and wear were solved, achieving stable and low-cost operation of the airbag pump.
Patent Information
- Application Number
- CN202520668391.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The valve assembly of existing airbag pumps is prone to unstable movement under pressure, resulting in poor sealing. Furthermore, valve cores and other components are easily worn, increasing operating costs and maintenance difficulty.
The valve assembly employs a valve core, spring, and valve seat structure, combined with the reciprocating motion of the bellows driven by a cylinder, ensuring the stability of the valve assembly. The design of the enclosure and base facilitates disassembly and cleaning, extending its service life.
It improves the stability and flow control accuracy of the airbag pump, reduces maintenance costs, extends the service life of valve components, and ensures sealing and durability.
Smart Images
Figure CN223952768U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a high-stability air bag pump and belongs to the technical field of air bag pumps. BACKGROUND
[0002] The air bag pump is a pump type for conveying special liquid by alternatingly increasing and reducing the working volume of an air bag in a pump cylinder, and the air bag pump in the prior art generally comprises a bag, a pump and a valve assembly connecting the bag and the pump to realize efficient transmission of various fluids.
[0003] During the operation of the air bag pump, the spring of the valve assembly is repeatedly moved under the action of pressure, and the spring is prone to unstable movement or even deviation, so that the valve assembly cannot well seal the internal flow channel; in addition, as the use time of the air bag pump is prolonged, the fluid remaining in the valve assembly is not easy to clean, and the valve core and other accessories are prone to deformation due to frequent friction, so that the pump body cannot normally operate, and the existing valve assembly can only be scrapped as a whole and replaced with a new one-way valve, thereby greatly increasing the operation cost of the air bag pump. CONTENT OF THE UTILITY MODEL
[0004] In order to solve the above problems, the application provides a high-stability air bag pump, which can prevent the spring from tilting after being pressed, has good sealing between the valve assembly and the flow channel, is convenient to disassemble and maintain, and is suitable for further popularization and application.
[0005] The utility model discloses a technical scheme as follows:
[0006] A high-stability air bag pump, comprising a pump head, wherein the pump head is provided with an inlet and an outlet, the pump head is symmetrically provided with a first air cylinder and a second air cylinder on both sides, a first bellows is arranged between the pump head and the first air cylinder, a second bellows is arranged between the pump head and the second air cylinder, a valve assembly is arranged in the first bellows and the second bellows, the valve assembly comprises a valve core, a spring and a valve seat, the spring is arranged between the valve core and the valve seat, the tail of the valve core is movably arranged on the inner side of the valve seat, the two ends of the inlet are matched with the head of the valve core, and the two ends of the outlet are matched with the end of the valve seat away from the valve core.
[0007] Optionally, the tail of the valve core is provided with a containing groove, and the outer side of the containing groove is provided with a check ring.
[0008] Optionally, the valve seat comprises an enclosing body and a base, and the enclosing body is threadedly connected to the outer side of the base.
[0009] Optionally, the top inner side of the enclosing body is provided with a flange, and when the valve assembly is in a closed state, the flange abuts against the check ring.
[0010] Optionally, a convex column is arranged in the base, the spring is arranged outside the convex column, one end of the spring is connected with the base, and the other end is connected with the accommodating groove.
[0011] Optionally, the body of the valve core is provided with a first through hole, the convex column is provided with a second through hole, and the first through hole is in communication with the second through hole when the valve assembly is in the open state.
[0012] Optionally, the convex column has a flow channel in communication with the second through hole.
[0013] Optionally, a first abutting block is arranged between the base and the convex column, and a second abutting block is arranged at the mouth of the accommodating groove, and the first abutting block abuts against the second abutting block when the valve assembly is in the open state.
[0014] Optionally, the body of the valve core has a tapered surface at one end close to the tail, and the side of the flange away from the check ring abuts against the tapered surface when the valve assembly is in the open state.
[0015] Optionally, the valve assembly is connected with the first bellows and the second bellows through the valve shell.
[0016] The beneficial effects that can be produced by the present application include but are not limited to:
[0017] The high-stability wind bag pump provided by the present application utilizes the reciprocating motion of the bellows driven by the two cylinders to maintain constant pressure and flow, thereby improving the stability of the pumping system; the valve assembly is arranged to suck the liquid at the liquid inlet into the two bellows and to press the liquid in the two bellows out of the liquid outlet; the arrangement of the valve core, the spring and the valve seat ensures that the valve core is quickly and accurately opened or closed, so that the liquid can smoothly enter and exit the two bellows; the arrangement of the base, the accommodating groove and the convex column enables the spring to move along a specific path, preventing unstable motion or even deviation; the arrangement of the enclosing body enables it to be closely connected with the base, and facilitates cleaning and replacement of the valve core and other accessories, thereby prolonging the service life of the valve assembly and reducing the operating cost of the wind bag pump. BRIEF DESCRIPTION OF DRAWINGS
[0018] The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and illustrate the illustrative embodiments of the present application and its description, which are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:
[0019] Fig. 1 The accompanying drawings, which are included to provide a further understanding of the present application, form a part of the present application and illustrate the illustrative embodiments of the present application and its description, which are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:
[0020] Fig. 2Structure schematic view of the valve assembly in the closed state according to an embodiment of the present application;
[0021] Fig. 3 Structure schematic view of the valve assembly in the open state according to an embodiment of the present application;
[0022] List of components and reference numerals:
[0023] 1, pump head, 2, liquid inlet, 3, liquid outlet, 4, first cylinder, 5, second cylinder, 6, first bellow, 7, second bellow, 8, valve assembly, 9, valve core, 10, spring, 11, valve seat, 12, accommodating groove, 13, retaining ring, 14, retaining body, 15, base, 16, flange, 17, protruding column, 18, first through hole, 19, second through hole, 20, flow channel, 21, first abutting block, 22, second abutting block, 23, conical surface, 24, surrounding plate, 25, valve shell, 26, liquid outlet pipe. DETAILED DESCRIPTION
[0024] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.
[0025] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.
[0026] In the following description, a lot of specific details are set forth in order to fully understand the present application, but the present application can also be implemented in other ways different from those described herein, therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.
[0027] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.
[0028] In addition, the terms "first", "second", etc. are used only to describe different instances, and cannot be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.
[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.
[0030] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0031] Reference Figs. 1-3 , introduces a high-stability wind bag pump according to the present application.
[0032] The high-stability air bag pump according to the embodiment comprises a pump head 1, an inlet 2 and an outlet 3 are arranged on the pump head 1 for the inlet and outlet of liquid, first and second air cylinders 4 and 5 are symmetrically arranged on the two sides of the pump head 1, so that the air bag pump can smoothly suck and discharge liquid when working, a first bellow 6 is arranged between the pump head 1 and the first air cylinder 4, and a second bellow 7 is arranged between the pump head 1 and the second air cylinder 5, the reciprocating movement of the bellows driven by the two air cylinders can keep constant pressure and flow, thereby improving the stability of the pumping system, a valve assembly 8 is arranged in each of the first and second bellows 6 and 7, for sucking the liquid in the inlet 2 into the two bellows and discharging the liquid in the two bellows from the outlet 3, the valve assembly 8 comprises a valve core 9, a spring 10 and a valve seat 11, the spring 10 is arranged between the valve core 9 and the valve seat 11, the tail of the valve core 9 is movably arranged on the inner side of the valve seat 11, so as to ensure that the valve core 9 is quickly and accurately opened or closed, thereby realizing accurate control of the liquid flow, the two ends of the inlet 2 are matched with the head of the valve core 9, and the two ends of the outlet 3 are matched with the end of the valve seat 11 away from the valve core 9, so that the liquid can smoothly enter and discharge from the two bellows.
[0033] As an embodiment, the tail of the valve core 9 is provided with a containing groove 12, which can limit and fix the spring 10, so as to ensure that the spring 10 moves stably and does not deviate, a stop ring 13 is arranged on the outer side of the containing groove 12, which can prevent the valve core 9 from being separated from the valve seat 11, thereby ensuring continuous and stable output of the pump and reducing maintenance cost.
[0034] As an embodiment, the valve seat 11 comprises a surrounding body 14 and a base 15, the surrounding body 14 is threadedly connected to the outer side of the base 15, which can tightly connect the surrounding body 14 and the base 15 together, and facilitates cleaning and replacement of the valve core 9 and other accessories, thereby prolonging the service life of the valve assembly 8.
[0035] As an embodiment, the top inner side of the surrounding body 14 is provided with a flange 16, when the valve assembly 8 is in a closed state, the flange 16 is in close contact with the stop ring 13, without the need for additional sealing materials, which ensures the sealing effect of the valve assembly 8, and also improves the stability of the valve assembly 8, so that it has excellent impact resistance and is more durable.
[0036] As an embodiment, a convex column 17 is arranged in the base 15, and the spring 10 is sleeved on the outer side of the convex column 17, so that the spring 10 can move along a specific path, preventing unstable movement or even deviation, one end of the spring 10 is connected to the base 15, and the other end is connected to the containing groove 12, which helps to reduce the relative shaking between the base 15 and the containing groove 12, thereby improving the stability of the valve assembly 8.
[0037] As an implementation form, the body of the valve core 9 is provided with a first through hole 18, and the convex column 17 is provided with a second through hole 19, when the valve assembly 8 is in an open state, the first through hole 18 and the second through hole 19 are communicated, providing a transmission channel for the fluid, and according to the communication degree of the first through hole 18 and the second through hole 19, the precise control of the fluid flow is realized.
[0038] As an implementation form, the convex column 17 has a flow channel 20 therein, and the flow channel 20 is communicated with the second through hole 19, thereby forming a transmission channel in which the first through hole 18, the second through hole 19 and the flow channel 20 are communicated in sequence, so that the fluid can flow smoothly in the valve assembly 8.
[0039] As an implementation form, the first abutting block 21 is arranged between the base 15 and the convex column 17, and the mouth of the accommodating groove 12 is provided with a second abutting block 22, when the valve assembly 8 is in an open state, the first abutting block 21 and the second abutting block 22 abut, which helps to fix the position of the valve core 9, prevents it from deviating during work, ensures the sealing performance of the valve assembly 8, and can also disperse the impact force generated during the opening and closing of the valve core 9, reduces the wear, thereby improving the durability of the valve assembly 8.
[0040] As an implementation form, the body of the valve core 9 has a tapered surface 23 at one end close to the tail part, when the valve assembly 8 is in an open state, the side of the flange 16 away from the blocking ring 13 abuts against the tapered surface 23, which increases the contact area between the valve core 9 and the valve seat 11, and further improves the connection stability and reliability of the two, and by precisely controlling the gap between the tapered surface 23 and the flange 16, the precise adjustment of the fluid flow can be realized.
[0041] In the embodiment of the utility model, the side of the first abutting block 21 away from the convex column 17 on the base 15 is provided with a coaming 24, the coaming 24 can be connected with the blocking body 14, and the movement range of the blocking ring 13 is limited, so that the blocking ring 13 can reciprocate between the flange 16 and the coaming 24, thereby ensuring the stability and reliability of the valve assembly 8 during work.
[0042] As an implementation form, the valve assembly 8 and the first bellows 6 are connected through a valve shell 25, and the valve assembly 8 and the second bellows 7 are connected through the valve shell 25, so that the connection between the valve assembly 8 and the bellows is more reliable, and the disassembly and maintenance are facilitated.
[0043] In use, the first bellows 6 is elongated by the first cylinder 4, the valve assembly 8 connected with the liquid inlet 2 is opened, the valve assembly 8 connected with the liquid outlet 3 is closed, liquid is sucked into the first bellows 6 from the liquid inlet 2, the first bellows 6 is compressed, the valve assembly 8 connected with the liquid inlet 2 is closed, the valve assembly 8 connected with the liquid outlet 3 is opened, and the liquid in the first bellows 6 flows into the liquid outlet pipe 26 from the liquid outlet 3. The second bellows 7 is elongated by the second cylinder 5, the valve assembly 8 connected with the liquid inlet 2 is opened, the valve assembly 8 connected with the liquid outlet 3 is closed, liquid is sucked into the second bellows 7 from the liquid inlet 2, the second bellows 7 is compressed, the valve assembly 8 connected with the liquid inlet 2 is closed, the valve assembly 8 connected with the liquid outlet 3 is opened, and the liquid in the second bellows 7 flows into the liquid outlet pipe 26 from the liquid outlet 3.
[0044] The various embodiments in the specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on the difference from other embodiments. In particular, the system embodiments are described simply because they are basically similar to the method embodiments, and the relevant parts can be referred to the part of the method embodiments.
[0045] The above merely describes the embodiments of the present application and is not intended to limit the present application. The present application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims
1. A high-stability wind-bag pump characterized by, The utility model provides a pump head is provided with liquid inlet and liquid outlet on it, first cylinder and second cylinder are symmetrically arranged on both sides of the pump head, first bellow is arranged between the pump head and first cylinder, second bellow is arranged between the pump head and second cylinder, valve assembly is arranged in first bellow and second bellow, the valve assembly includes valve core, spring and valve seat, the spring is arranged between valve core and valve seat, the tail of valve core is movably arranged in the inside of valve seat, both ends of liquid inlet are adapted with the head of valve core, and one end of valve seat away from valve core is adapted with both ends of liquid outlet.
2. The high-stability bellows pump according to claim 1, characterized in that The tail of the valve core is provided with a containing groove, and the outer side of the containing groove is provided with a check ring.
3. The high-stability bellows pump according to claim 2, characterized in that The valve seat includes a surrounding body and a base, and the surrounding body is threadedly connected to the outer side of the base.
4. The high-stability bellows pump according to claim 3, characterized in that The top inner side of the surrounding body is provided with a flange, and the flange abuts against the check ring when the valve assembly is in a closed state.
5. The high-stability bellows pump according to claim 3, characterized in that The base is provided with a convex column, the spring is sleeved on the outer side of the convex column, one end of the spring is connected to the base, and the other end is connected to the containing groove.
6. The high-stability bellows pump according to claim 5, characterized in that The body of the valve core is provided with a first through hole, the convex column is provided with a second through hole, and the first through hole and the second through hole are communicated when the valve assembly is in an open state.
7. The high-stability bellows pump according to claim 6, characterized in that The convex column has a flow channel, and the flow channel is communicated with the second through hole.
8. The high stability bellows pump of claim 5, wherein, The base and the convex column are provided with a first abutting block, and the mouth of the containing groove is provided with a second abutting block, and the first abutting block and the second abutting block abut against each other when the valve assembly is in an open state.
9. The high stability bellows pump of claim 4, wherein, The body of the valve core has a tapered surface near one end of the tail, and the side of the flange away from the check ring abuts against the tapered surface when the valve assembly is in an open state.
10. The high-stability bellows pump of claim 1, wherein, The valve assembly and the first bellow are connected through a valve shell, and the valve assembly and the second bellow are connected through the valve shell.