Simple and efficient air bag pump ventilation structure

Abstract

This utility model relates to the field of airbag pump technology, and in particular to a simple and efficient airbag pump ventilation structure, including an air chamber. Its features include: a pump body installed in the middle of the two air chambers; an airbag fixedly installed inside the pump body; a valve mechanism on the back of the pump body; a one-way valve fixedly installed in the middle of the pump body; screw sleeves at corresponding positions on the front and back of the pump body; a threaded hole on the back of the pump body; and ventilation rods fixedly installed inside each airbag. The valve mechanism includes a valve sleeve located inside a valve housing; an O-ring on the outer side of the valve sleeve; a valve core inserted inside the valve sleeve; valve end caps on the upper and lower parts of the valve housing; and sealing rings inside the valve end caps. This airbag pump ventilation structure effectively gathers and disperses gas through an auxiliary exhaust port at the bottom of the air chamber, thereby increasing the flow rate under the same conditions.

Description

Technical Field

[0001] This utility model relates to the field of airbag pump technology, specifically a simple and efficient airbag pump ventilation structure. Background Technology

[0002] The semiconductor and electronics industries require pumps for transporting highly corrosive liquids such as acids and alkalis. In the transport of these liquids, airbag pumps, such as the Whiteknight airbag pump from the United States, can be used. However, this type of airbag pump has the following problems:

[0003] (1) The center hole and the air bag connecting rod are made of different materials for friction guidance, which leads to wear and movement deviation. The center hole and the air bag connecting rod rub directly, and the whole pump needs to be replaced after wear.

[0004] (2) The bottom of the airbag is a through hole and a welding structure with the ventilation rod. Welding this material will produce highly toxic gas pollution, and the positional accuracy depends on the accuracy of the equipment.

[0005] (3) The friction between the valve sleeve and the air exchange rod, which are made of different materials, increases wear and shortens the service life. The air exchange sleeve and the bottom of the air bag have no air storage chamber, which cannot effectively collect gas, so the air exchange action needs to be achieved by increasing the air pressure. Summary of the Invention

[0006] The purpose of this invention is to provide a simple and efficient airbag pump ventilation structure to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: It includes an air chamber, characterized in that: a pump body is installed in the middle of the two air chambers, an air bag is fixedly installed inside the pump body, an air valve mechanism is provided on the back of the pump body, a one-way valve is fixedly installed in the middle of the pump body, screw sleeves are provided at corresponding positions on the front and back of the pump body, a threaded hole is opened on the back of the pump body, and an air exchange rod is fixedly installed inside each air bag; the air valve mechanism includes an air valve sleeve, which is disposed inside an air valve housing, an O-ring is provided on the outer side of the air valve sleeve, an air valve core is inserted into the air valve sleeve, and air valve end caps are provided on the upper and lower parts of the air valve housing, with sealing rings provided inside the air valve end caps.

[0008] Preferably, the valve sleeve has a groove on its outer side, and the O-ring is fitted inside the groove.

[0009] Preferably, the valve end cap has a groove inside, and the sealing ring is disposed inside the groove.

[0010] Preferably, there are two air chambers, and the air chambers are integral, with an air inlet in the middle and an auxiliary exhaust port at the bottom.

[0011] Preferably, the outer side of the ventilation rod has a groove, and a hole is set inside the groove using a Gladwell ring. The ventilation rod has a thread on one side and is installed inside the air bag.

[0012] Preferably, two airbags are provided, and the front and back edges of the airbags are provided with grooves, and the airbags are positioned between the air chamber and the contact surface of the pump body.

[0013] Preferably, the pump body is made of the same material as the intermediate shaft, and the intermediate shaft is slidably connected to the V-shaped sealing ring and placed inside the pump body. A screw sleeve hole is opened at the corresponding position of the pump body, and the screw sleeve is placed inside the screw sleeve hole. The first bolt passes through the air chamber and is installed inside the screw sleeve of the pump body. A threaded hole is opened on the back of the pump body, and the air valve mechanism is installed on the back of the pump body by a second bolt.

[0014] Preferably, the one-way valve has threads on its outer side and is installed in the middle of the pump body via these threads.

[0015] Compared with the prior art, this utility model provides a simple and efficient ventilation structure for a wind bag pump, which has the following beneficial effects: (1) The ventilation structure of this wind bag pump combines the air chamber and the air guide sleeve into one structure. By moving the sealing section of the ventilation rod, the same function can be achieved, making the equipment structure more streamlined and the failure rate lower. This reduces the number of customer parts, reduces customer maintenance costs, and makes it easy to identify faults. (2) The ventilation structure of this wind bag pump effectively gathers and disperses gas through the auxiliary exhaust hole set at the bottom of the air chamber, which facilitates the movement and reversal of the ventilation rod, increases the frequency under the same conditions, and thus increases the flow rate under the same conditions. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0018] Figure 2 This is an exploded structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the external structure of the air valve mechanism of this utility model;

[0020] Figure 4 This is an exploded view of the valve mechanism of this utility model;

[0021] In the diagram: 1. Outer cavity; 2. Pump body; 3. Air bag; 4. Air valve mechanism; 5. One-way valve; 6. Air exchange rod; 7. Glyd ring for the hole; 8. Screw sleeve; 9. First bolt; 10. Intermediate shaft; 11. V-ring seal; 41. Air valve sleeve; 42. Air valve core; 43. Air valve end cap; 44. Second bolt; 45. Sealing ring; 46. O-ring; 47. Air valve housing. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example 1

[0024] Please see Figure 1-4 The present invention provides a technical solution: a pump body 2 is installed in the middle of the two air chambers 1, an air bag 3 is fixedly installed inside the pump body 2, an air valve mechanism 4 is provided on the back of the pump body 2, a one-way valve 5 is fixedly installed in the middle of the pump body 2, screw sleeves 8 are provided at corresponding positions on the front and back of the pump body, and an air exchange rod 6 is fixedly installed inside the air bag 3.

[0025] Furthermore, a groove is provided inside the air chamber 1 to facilitate the positioning and installation of the air bag 3.

[0026] Furthermore, grooves are provided on both sides of the pump body 2 to facilitate the positioning and installation of the air bag 3. Threaded holes are provided on the back of the pump body 2 to facilitate the positioning and installation of the second bolt 44 after passing through the air valve mechanism. Threaded holes are provided in the middle of the pump body 2 to facilitate the positioning and installation of the one-way valve 5. Screw sleeve holes are provided on the front and back of the pump body 2 to facilitate the positioning and installation of the first bolt 9 after passing through the air chamber 1.

[0027] Furthermore, the bottom of the air bag 3 is provided with a threaded hole to facilitate the positioning and installation of the ventilation rod 6. Example 2

[0028] Please see Figure 4 Furthermore, in conjunction with Embodiment 1, it is further obtained that the air valve mechanism 6 includes an air valve sleeve 41, an O-ring 46 is provided on the outside of the air valve sleeve 41, an air valve core 42 is provided inside the air valve sleeve 41, the air valve sleeve 41 is disposed inside the air valve housing 47, and an air valve end cap 43 is provided on the upper and lower parts of the air valve housing 47.

[0029] Furthermore, the valve sleeve 41 has 6 grooves on its exterior, and an O-ring is fitted inside the groove to facilitate sealing between the valve sleeve 41 and the valve housing 47.

[0030] Furthermore, the upper and lower parts of the valve housing 47 are provided with threaded holes to facilitate the positioning and installation of the valve end cover 43.

[0031] Furthermore, the bottom of the valve end cap 43 is provided with a groove, and the sealing ring 45 is fitted inside the groove to facilitate the sealing of the valve end cap 43 with the inside of the valve housing 47.

[0032] In actual operation, when this device is used, the intermediate shaft 10 is placed inside the pump body 2 and fixed by the V-shaped sealing ring 11. Then, the air exchange rod 5 is screwed into the bottom of the air bag 3. Then, the air bags at both ends are placed between the two side air chambers 1 and the pump body 2. The first bolt 9 is connected and fixed by the air chamber 1 and the screw sleeves set on the front and back of the pump body 2. Then, the one-way valve 5 is screwed into the middle of the pump body 2. Finally, the air valve mechanism 4 is placed on the back of the pump body 2 and fixed by the second bolt 44.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A simple and efficient airbag pump ventilation structure, comprising an air chamber (1), characterized in that: A pump body (2) is installed in the middle of the air chambers (1) on both sides. An air bag (3) is fixedly installed inside the pump body (2). An air valve mechanism (4) is provided on the back of the pump body (2). A one-way valve (5) is fixedly installed in the middle of the pump body (2). Screw sleeves (8) are provided at corresponding positions on the front and back of the pump body (2). A threaded hole is provided on the back of the pump body (2). An air exchange rod (6) is fixedly installed inside the air bag (3). The air valve mechanism (4) includes an air valve sleeve (41). The air valve sleeve (41) is located inside the air valve housing (47). An O-ring (46) is provided on the outside of the air valve sleeve (41). An air valve core (42) is inserted into the air valve sleeve (41). An air valve end cap (43) is provided on the upper and lower parts of the air valve housing (47). A sealing ring (45) is provided inside the air valve end cap.

2. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The valve sleeve (41) has a groove on its outside, and the O-ring (46) is fitted inside the groove.

3. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The valve end cap (43) has a groove inside, and the sealing ring (45) is located inside the groove.

4. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The air chamber (1) is provided in two parts, and the air chamber (1) is an integral piece with an air inlet in the middle and an auxiliary exhaust port at the bottom.

5. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The ventilation rod (6) has a groove on its outer side, and a glyph (7) is set inside the groove. The ventilation rod (6) has a thread on one side and is installed inside the air bag (3).

6. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: Two air bags (3) are provided. The front and back edges of the air bags (3) are provided with grooves, and the air bags (3) are located between the air chamber (1) and the pump body (2).

7. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The pump body (2) is made of the same material as the intermediate shaft (10). The intermediate shaft (10) and the V-shaped sealing ring (11) are slidably connected and placed inside the pump body (2). The front and back of the pump body (2) are provided with screw sleeve holes. The screw sleeve (8) is placed inside the screw sleeve hole. The first bolt (9) passes through the air chamber (1) and is installed inside the screw sleeve (8) of the pump body (2). The back of the pump body (2) is provided with threaded holes. The air valve mechanism (4) is installed on the back of the pump body by the second bolt (44).

8. The simplified and efficient airbag pump ventilation structure according to claim 1, characterized in that: The one-way valve (5) has a thread on its outer side and is installed in the middle of the pump body (2) through the thread.

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