A fully welded bellows-type surge tank employing non-contact sensors

Abstract

The application discloses a full-welded corrugated pipe type pressurized oil tank adopting a non-contact sensor and relates to the technical field of the corrugated pipe type pressurized oil tank, which comprises a main body mechanism, wherein the main body mechanism comprises a tank body, two groups of fixed bottom feet are fixedly installed on the bottom surface of the tank body, a corrugated pipe body is fixedly installed on the inner wall of the tank body, an output oil pipe is fixedly and communicatively arranged in the tank body, a gas collecting mechanism is arranged outside the tank body, the gas collecting mechanism comprises a gas collecting unit, the gas collecting unit is located on the left side of the tank body, and the gas collecting unit is used for centrally collecting and storing the gas. The full-welded corrugated pipe type pressurized oil tank adopting the non-contact sensor can extract the gas in the oil tank by using a miniature compressor and collect the compressed gas into a high-pressure gas cylinder in the form of compressed gas energy, so that the compressed gas energy is centrally collected and stored, and the purpose of recycling the gas energy is achieved.

Description

Technical Field

[0001] This invention relates to the field of bellows-type booster tank technology, specifically to a fully welded bellows-type booster tank employing a non-contact sensor. Background Technology

[0002] Bellows-type booster tanks are specially designed tanks that play a vital role in numerous engineering and mechanical applications. Because the bellows automatically expands and contracts according to changes in tank pressure and works in conjunction with the booster and control systems, it effectively maintains stable tank pressure. This stable pressure is crucial for high-precision hydraulic systems and demanding lubrication systems. Under different working environments and conditions, the hydraulic pressure requirements of mechanical equipment may vary. Bellows-type booster tanks can flexibly adapt to these changes by adjusting the operating parameters of the booster and the expansion / contraction of the bellows. For example, in construction machinery, higher hydraulic pressure is required during heavy-duty excavation operations, while the pressure requirement is relatively lower during unloaded operation; this type of tank effectively meets these needs.

[0003] During the pressurization process, some energy is lost in the form of gas compression energy in bellows-type booster tanks. However, bellows-type booster tanks are not convenient for recovering and utilizing gas energy, resulting in low consumption and energy utilization rate, and they cannot effectively recover gas energy.

[0004] Combining the above issues, we find that existing fully welded bellows-type booster tanks using non-contact sensors on the market cannot simultaneously avoid the problems mentioned above. Even if they can be solved, they require external tools, thus failing to achieve the desired effect. Therefore, we propose a fully welded bellows-type booster tank using non-contact sensors. Summary of the Invention

[0005] The purpose of this invention is to provide a fully welded bellows-type booster tank that uses a non-contact sensor, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fully welded bellows-type booster tank using a non-contact sensor, comprising a main body, the main body comprising a housing, two sets of fixed feet fixedly installed on the bottom surface of the housing, a bellows body fixedly installed on the inner wall of the housing, an output oil pipe fixedly connected to the inside of the housing, and a gas collection mechanism provided on the outside of the housing;

[0007] The gas collection mechanism includes a gas collection unit located on the left side of the housing, which is used for centralized collection and storage of gas.

[0008] The gas collection mechanism also includes an emission guiding unit, which is located inside the housing and is used to guide the emission of gas inside the housing.

[0009] A reflux mechanism is provided on the right side of the gas collection unit. The reflux mechanism is located on the upper surface of the housing and is used to extract gas from the gas collection unit for distribution and use.

[0010] Preferably, the gas collection unit includes two high-pressure gas cylinders. The bottoms of the two high-pressure gas cylinders are jointly secured to a base. The right side of the base is fixedly connected to the left side of the housing. A three-way pipe is fixedly connected to the top of each high-pressure gas cylinder. Two control valves are fixedly connected inside each three-way pipe. A connecting pipe is fixedly connected to the interior of both three-way pipes. A support plate is jointly secured to the outer surfaces of the two high-pressure gas cylinders. The right side of the support plate is fixedly connected to the left side of the housing. A miniature compressor is fixedly mounted on the upper surface of the support plate. An input pipe is fixedly connected inside the miniature compressor. The interior of the input pipe is connected to the interior of the housing. A sealing gasket is secured to the outer surface of the input pipe, and the outer surface of the sealing gasket contacts the inner wall of the housing. An output pipe is fixedly connected inside the miniature compressor. The interior of the output pipe is connected to the interior of the connecting pipe.

[0011] Preferably, each of the high-pressure gas cylinders has two fixing ring plates snapped onto its outer surface, and each fixing ring plate has a support shaft fixedly installed on its inner wall.

[0012] Preferably, a rolling bearing is fixedly installed on the outer surface of each of the support shafts, a fixing plate is fixedly installed on the outer surface of each of the rolling bearings, and the bottom surface of each fixing plate is fixedly connected to the inner bottom wall of the base.

[0013] Preferably, the inner walls of every two fixed ring plates are threaded with two screws, and the outer surface of each screw is threaded with two nuts.

[0014] Preferably, the emission guiding unit includes an air chamber and an oil chamber, both of which have an interior housing. The interior housing contains several identical exhaust baffles. A rotating shaft is fixedly installed on the inner wall of each exhaust baffle. A first pulley is fixedly installed at the top of each rotating shaft. A synchronous belt is drivenly connected to the outer surface of each first pulley. A small motor is fixedly installed on the upper surface of the housing. A second pulley is fixedly installed at the output end of the small motor. The inner ring of one of the synchronous belts is drivenly connected to the outer surface of the second pulley. An oil baffle is fixedly installed on the inner side wall of the housing. A groove is formed on the front of the oil baffle. A telescopic baffle is provided inside the groove. Two electric push rods are fixedly installed on the inner wall of the oil baffle. The telescopic end of each electric push rod is fixedly connected to the left side of the telescopic baffle.

[0015] Preferably, a protective outer shell is fixedly installed on the upper surface of the housing, and two sealing covers are provided inside the oil baffle.

[0016] Preferably, each of the closed covers has a sliding bearing fixedly embedded inside, and the inner wall of each sliding bearing is in contact with the telescopic end of the electric push rod.

[0017] Preferably, two roller bearings are fixedly installed on the outer surface of each of the rotating shafts, and the outer surface of each roller bearing is fixedly connected to the inner wall of the housing.

[0018] Preferably, the reflux utilization mechanism includes two suction pipes, the interior of each suction pipe is connected to the interior of a three-way pipe, and the interior of each suction pipe is fixedly connected to an on / off valve. The bottoms of the two suction pipes are fixedly connected to a connecting pipe. An air pump is installed below the connecting pipe, the bottom surface of the air pump is fixedly connected to the upper surface of the housing, the interior of the air pump is fixedly connected to an air suction pipe, the interior of the air suction pipe is connected to the interior of the connecting pipe, the air pump is fixedly connected to an exhaust pipe, the interior of the exhaust pipe is fixedly connected to a distribution pipe, and the interior of the distribution pipe is fixedly connected to two manual valves.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This invention, by setting up a gas collection unit, can use a micro compressor to extract gas from the oil tank and collect it into a high-pressure gas cylinder in the form of compressed gas energy. This centralized collection and storage of compressed gas energy achieves the purpose of recovering gas energy and avoids the problem of some energy being lost in the form of gas compression energy.

[0021] 2. This invention, by setting up an exhaust guiding unit, can guide exhaust within the oil tank, and can use the structure at the exhaust baffle and oil baffle to separate oil and gas, preventing oil from leaking into the gas chamber, and can control the on / off of gas exhaust, thereby providing a certain amount of gas storage to supply gas to the micro compressor.

[0022] 3. This invention, by incorporating a reflux mechanism, can extract compressed gas from high-pressure gas cylinders and then reuse the compressed gas through the reflux structure, thereby achieving the purpose of reusing the collected gas energy, avoiding the consumption of gas energy, and improving energy utilization efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the fuel tank of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the protective shell of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of the oil baffle of the present invention;

[0027] Figure 5 This is a schematic diagram of the exhaust baffle of the present invention;

[0028] Figure 6 This is a schematic diagram of the air extraction tube of the present invention;

[0029] Figure 7 This is a schematic diagram of the structure of the base of the present invention;

[0030] Figure 8 This is a schematic diagram of the connecting pipe of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of the fixing ring plate of the present invention.

[0032] In the diagram: 1. Main structure; 11. Housing; 12. Bellows body; 13. Fixed base; 14. Output oil pipe; 2. Gas collection mechanism; 21. Gas collection unit; 2101. High-pressure gas cylinder; 2102. Fixed ring plate; 2103. Base; 2104. Support plate; 2105. T-pipe; 2106. Control valve; 2107. Connecting pipe; 2108. Miniature compressor; 2109. Output pipe; 2110. Sealing gasket; 2111. Input pipe; 2112. Nut; 2113. Screw; 2114. Rolling bearing; 2115. Fixed plate; 2116. Support shaft; 22. Discharge guide unit; 01. Air chamber; 2202. Oil chamber; 2203. Protective shell; 2204. Exhaust baffle; 2205. Oil baffle; 2206. Telescopic baffle; 2207. Sliding bearing; 2208. Slide groove; 2209. Electric push rod; 2210. Sealing cover; 2211. Second pulley; 2212. Synchronous belt; 2213. Rotating shaft; 2214. Small motor; 2215. Roller bearing; 2216. First pulley; 3. Recirculation mechanism; 301. Suction pipe; 302. On / off valve; 303. Manual valve; 304. Distribution pipe; 305. Discharge pipe; 306. Air pump; 307. Suction pipe; 308. Connecting pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1

[0035] Please see Figure 1 , Figure 2 and Figures 7-9 The present invention provides a technical solution: a fully welded bellows-type booster tank using a non-contact sensor, comprising a main body 1, the main body 1 comprising a housing 11, two sets of fixed feet 13 fixedly installed on the bottom surface of the housing 11, a bellows body 12 fixedly installed on the inner wall of the housing 11, an output oil pipe 14 fixedly connected to the inside of the housing 11, and a gas collection mechanism 2 provided on the outside of the housing 11.

[0036] The gas collection mechanism 2 includes a gas collection unit 21, which is located on the left side of the housing 11. The gas collection unit 21 is used to collect and store gas in a centralized manner.

[0037] As a further definition of the gas collection mechanism 2 of the present invention, the gas collection unit 21 includes two high-pressure gas cylinders 2101. The bottoms of the two high-pressure gas cylinders 2101 are jointly engaged with a base 2103. The right side of the base 2103 is fixedly connected to the left side of the housing 11. A three-way pipe 2105 is fixedly connected to the top of each high-pressure gas cylinder 2101. Two control valves 2106 are fixedly connected inside each three-way pipe 2105. A connecting pipe 2107 is fixedly connected inside the two three-way pipes 2105. A support plate 2104 is jointly engaged with the outer surfaces of the two high-pressure gas cylinders 2101. The right side of the support plate 2104 is fixedly connected to the left side of the housing 11. A miniature compressor 2108 is fixedly mounted on the upper surface of the support plate 2104. The compressor 2108 is internally connected to an input pipe 2111, which is connected to the interior of the housing 11. A sealing gasket 2110 is snapped onto the outer surface of the input pipe 2111, and the outer surface of the sealing gasket 2110 contacts the inner wall of the housing 11. The micro compressor 2108 is internally connected to an output pipe 2109, which is connected to the interior of a connecting pipe 2107. By providing a gas collection unit 21, the micro compressor 2108 can extract the gas from the housing 11 and collect it into the high-pressure gas cylinder 2101 in the form of compressed gas energy. The compressed gas energy is collected and stored in a centralized manner to achieve the purpose of recovering gas energy and to prevent the loss of some energy in the form of gas compression energy.

[0038] Two fixing ring plates 2102 are snapped onto the outer surface of each high-pressure gas cylinder 2101. A support shaft 2116 is fixedly installed on the inner wall of each fixing ring plate 2102. By setting the support shaft 2116 and the fixing ring plate 2102, the support shaft 2116 is used to support the rotation of the fixing ring plate 2102, so that the fixing ring plate 2102 can be released or fixed from the high-pressure gas cylinder 2101.

[0039] Each support shaft 2116 has a rolling bearing 2114 fixedly installed on its outer surface, and each rolling bearing 2114 has a fixing plate 2115 fixedly installed on its outer surface. The bottom surface of each fixing plate 2115 is fixedly connected to the inner bottom wall of the base 2103. The rolling bearing 2114 is used to support the rotation of the support shaft 2116, which helps to reduce the wear of the support shaft 2116 during rotation.

[0040] The inner walls of each pair of fixing ring plates 2102 are connected to two screws 2113 by common threads. The outer surface of each screw 2113 is connected to two nuts 2112 by threads. The fixing ring plates 2102 can be fixed by the screws 2113 and nuts 2112, so that the fixing ring plates 2102 stabilize the high-pressure gas cylinder 2101.

[0041] The specific implementation method of this embodiment is as follows: When it is necessary to recover gas energy, the micro compressor 2108 can be started. The micro compressor 2108 draws gas from the box 11 through the input pipe 2111. After the gas is compressed by the micro compressor 2108, the compressed gas is discharged through the output pipe 2109. The gas flows in the connecting pipe 2107. The connecting pipe 2107 enters the high-pressure gas cylinder 2101 through the three-way pipe 2105 for collection. In order to ensure the stability of the high-pressure gas cylinder 2101 when it is used in the box 11, the high-pressure gas cylinder 2101 can be fixed by the fixing ring plate 2102.

[0042] Example 2

[0043] Please see Figures 1-5 The present invention provides a technical solution: a fully welded bellows-type booster tank using a non-contact sensor. The present invention makes corresponding improvements to the technical problems mentioned in the background art. The gas collection mechanism 2 also includes a discharge guide unit 22, which is located inside the tank body 11 and is used to guide the gas in the tank body 11 to discharge.

[0044] As a further definition of the gas collection mechanism 2 of the present invention, the emission guiding unit 22 includes a gas chamber 2201 and an oil chamber 2202. Both the gas chamber 2201 and the oil chamber 2202 have an interior of a housing 11. The interior of the housing 11 is provided with several identical exhaust baffles 2204. A rotating shaft 2213 is fixedly installed on the inner wall of each exhaust baffle 2204. A first pulley 2216 is fixedly installed at the top of each rotating shaft 2213. A synchronous belt 2212 is drivenly connected to the outer surface of each first pulley 2216. A small motor 2214 is fixedly installed on the upper surface of the housing 11. A second pulley 2211 is fixedly installed at the output end of the small motor 2214. The inner ring of one of the synchronous belts 2212 is drivenly connected to the outer surface of the second pulley 2211. Next, an oil baffle 2205 is fixedly installed on the inner side wall of the housing 11. A sliding groove 2208 is opened on the front of the oil baffle 2205. A telescopic baffle 2206 is set inside the sliding groove 2208. Two electric push rods 2209 are fixedly installed on the inner wall of the oil baffle 2205. The telescopic end of each electric push rod 2209 is fixedly connected to the left side of the telescopic baffle 2206. By setting up the discharge guide unit 22, exhaust can be guided in the oil tank. The structure at the exhaust baffle 2204 and the oil baffle 2205 can be used to separate the oil and gas, prevent the oil from leaking into the gas chamber 2201, control the opening and closing of gas discharge, and achieve the purpose of providing a certain storage of gas for the purpose of providing gas to the micro compressor 2108.

[0045] A protective shell 2203 is fixedly installed on the upper surface of the housing 11. The oil baffle 2205 has two sealing covers 2210 inside. The protective shell 2203 and the sealing covers 2210 both serve a protective function.

[0046] Each closed cover 2210 has a sliding bearing 2207 fixedly embedded inside. The inner wall of each sliding bearing 2207 is in contact with the telescopic end of the electric push rod 2209. By setting the sliding bearing 2207, the movement of the telescopic end of the electric push rod 2209 can be supported, ensuring that the telescopic end of the electric push rod 2209 moves within the closed cover 2210.

[0047] Two roller bearings 2215 are fixedly installed on the outer surface of each shaft 2213. The outer surface of each roller bearing 2215 is fixedly connected to the inner wall of the housing 11. The roller bearings 2215 can support the rotation of the shaft 2213 and ensure the stability of the shaft 2213.

[0048] The specific implementation of this embodiment is as follows: When it is necessary to discharge the gas in the oil chamber 2202, the small motor 2214 can be started. The small motor 2214 drives the first pulley 2216 through the second pulley 2211 and the synchronous belt 2212. The first pulleys 2216 also rotate synchronously through the synchronous belt 2212. The rotating shaft 2213 drives the exhaust baffle 2204 to rotate. The exhaust baffles 2204 open, and the gas can flow through the opening between the exhaust baffles 2204 and enter the gas chamber 2201. In order to prevent oil from entering the gas chamber 2201, a telescopic baffle 2206 can be used to block the oil, leaving only a certain space for gas to flow. After the gas enters the gas chamber 2201, it is extracted by the micro compressor 2108.

[0049] Example 3

[0050] Please see the figure and Figure 6 The present invention provides a technical solution: a fully welded bellows-type booster tank using a non-contact sensor. The present invention makes corresponding improvements to the technical problems mentioned in the background art. A reflux utilization mechanism 3 is provided on the right side of the gas collection unit 21. The reflux utilization mechanism 3 is located on the upper surface of the tank body 11. The reflux utilization mechanism 3 is used to extract gas from the gas collection unit 21 for distribution and use.

[0051] As a further definition of the reflux utilization mechanism 3 of the present invention, the reflux utilization mechanism 3 includes two suction pipes 301, the interior of each suction pipe 301 being connected to the interior of a three-way pipe 2105, and a shut-off valve 302 fixedly connected to the interior of each suction pipe 301. A connecting pipe 308 is fixedly connected to the bottom of both suction pipes 301. An air pump 306 is disposed below the connecting pipe 308, the bottom surface of the air pump 306 being fixedly connected to the upper surface of the housing 11, and a suction pipe 307 fixedly connected to the interior of the air pump 306. The interior of 07 is connected to the interior of the connecting pipe 308. The air pump 306 is fixedly connected to the discharge pipe 305. The interior of the discharge pipe 305 is fixedly connected to the distribution pipe 304. The interior of the distribution pipe 304 is fixedly connected to two manual valves 303. By setting the reflux utilization mechanism 3, it can play the role of evacuating the compressed gas in the high-pressure gas cylinder 2101, and then use the compressed gas through the reflux structure to achieve the purpose of reusing the collected gas energy, avoiding the consumption of gas energy, and improving energy utilization efficiency.

[0052] The specific implementation method of this embodiment is as follows: When it is necessary to use the gas in the high-pressure gas cylinder 2101, the control valve 2106 can be opened, and the air pump 306 can be started. The air pump 306 draws out the gas through the connecting pipe 308 and the suction pipe 307, and discharges the gas through the discharge pipe 305. According to the needs, the distribution pipe 304 is connected by a pipe. The distribution pipe 304 discharges the gas in two ways, and the on and off of the two ways are controlled by the manual valve 303.

[0053] 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 process, method, article, or apparatus.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fully welded bellows-type booster tank employing a non-contact sensor, comprising a main body (1), characterized in that: The main body (1) includes a box (11), two sets of fixed feet (13) are fixedly installed on the bottom surface of the box (11), a corrugated pipe (12) is fixedly installed on the inner wall of the box (11), an output oil pipe (14) is fixedly connected to the inside of the box (11), and a gas collection mechanism (2) is provided on the outside of the box (11). The gas collection mechanism (2) includes a gas collection unit (21), which is located on the left side of the box (11). The gas collection unit (21) is used to collect and store gas in a centralized manner. The gas collection mechanism (2) further includes an emission guide unit (22), which is located inside the housing (11) and is used to guide the emission of gas inside the housing (11). A reflux utilization mechanism (3) is provided on the right side of the gas collection unit (21). The reflux utilization mechanism (3) is located on the upper surface of the box (11). The reflux utilization mechanism (3) is used to extract gas from the gas collection unit (21) for distribution and use. The emission guiding unit (22) includes an air chamber (2201) and an oil chamber (2202). Both the air chamber (2201) and the oil chamber (2202) have an interior housing (11). The interior of the housing (11) contains several identical exhaust baffles (2204). A rotating shaft (2213) is fixedly installed on the inner wall of each exhaust baffle (2204). A first pulley (2216) is fixedly installed at the top of each rotating shaft (2213). A synchronous belt (2212) is connected to the outer surface of each first pulley (2216). A small motor (2214) is fixedly installed on the upper surface of the housing (11). The output end of the small motor (2214) is fixedly installed with a second pulley (2211). The inner ring of one of the synchronous belts (2212) is connected to the outer surface of the second pulley (2211) for transmission. An oil baffle (2205) is fixedly installed on the inner side wall of the housing (11). A groove (2208) is opened on the front of the oil baffle (2205). A telescopic baffle (2206) is provided inside the groove (2208). Two electric push rods (2209) are fixedly installed on the inner wall of the oil baffle (2205). The telescopic end of each electric push rod (2209) is fixedly connected to the left side of the telescopic baffle (2206).

2. The all-welded bellows-type booster tank using a non-contact sensor as described in claim 1, characterized in that: The gas collection unit (21) includes two high-pressure gas cylinders (2101). The bottoms of the two high-pressure gas cylinders (2101) are connected to a base (2103). The right side of the base (2103) is fixedly connected to the left side of the housing (11). A three-way pipe (2105) is fixedly connected to the top of each high-pressure gas cylinder (2101). Two control valves (2106) are fixedly connected inside each three-way pipe (2105). A connecting pipe (2107) is fixedly connected inside the two three-way pipes (2105). A support plate (2104) is fixedly connected to the outer surface of the two high-pressure gas cylinders (2101). The support plate (2104)... The right side of the support plate (2104) is fixedly connected to the left side of the box (11). A micro compressor (2108) is fixedly installed on the upper surface of the support plate (2104). An input pipe (2111) is fixedly connected inside the micro compressor (2108). The inside of the input pipe (2111) is connected to the inside of the box (11). A sealing gasket (2110) is snapped onto the outer surface of the input pipe (2111). The outer surface of the sealing gasket (2110) is in contact with the inner wall of the box (11). An output pipe (2109) is fixedly connected inside the micro compressor (2108). The inside of the output pipe (2109) is connected to the inside of the connecting pipe (2107).

3. A fully welded bellows-type booster tank employing a non-contact sensor as described in claim 2, characterized in that: Two fixing ring plates (2102) are snapped onto the outer surface of each of the high-pressure gas cylinders (2101), and a support shaft (2116) is fixedly installed on the inner wall of each fixing ring plate (2102).

4. A fully welded bellows-type booster tank employing a non-contact sensor as described in claim 2, characterized in that: Each of the support shafts (2116) has a rolling bearing (2114) fixedly installed on its outer surface, and each of the rolling bearings (2114) has a fixing plate (2115) fixedly installed on its outer surface. The bottom surface of each fixing plate (2115) is fixedly connected to the inner bottom wall of the base (2103).

5. A fully welded bellows-type booster tank employing a non-contact sensor according to claim 2, characterized in that: The inner walls of each pair of fixed ring plates (2102) are threaded with two screws (2113), and the outer surface of each screw (2113) is threaded with two nuts (2112).

6. A fully welded bellows-type booster tank employing a non-contact sensor as described in claim 1, characterized in that: The upper surface of the housing (11) is fixedly installed with a protective shell (2203), and the inside of the oil baffle (2205) is provided with two closed covers (2210).

7. A fully welded bellows-type booster tank employing a non-contact sensor as described in claim 6, characterized in that: Each of the closed covers (2210) has a sliding bearing (2207) fixedly embedded inside, and the inner wall of each sliding bearing (2207) is in contact with the telescopic end of the electric push rod (2209).

8. A fully welded bellows-type booster tank employing a non-contact sensor according to claim 1, characterized in that: Two roller bearings (2215) are fixedly installed on the outer surface of each of the said shafts (2213), and the outer surface of each of the roller bearings (2215) is fixedly connected to the inner wall of the housing (11).

9. A fully welded bellows-type booster tank employing a non-contact sensor according to claim 1, characterized in that: The reflux utilization mechanism (3) includes two suction pipes (301), the interior of each suction pipe (301) is connected to the interior of a three-way pipe (2105), and the interior of each suction pipe (301) is fixedly connected to an on / off valve (302). The bottoms of the two suction pipes (301) are fixedly connected to a connecting pipe (308). An air pump (306) is installed below the connecting pipe (308). The bottom surface of the air pump (306) is fixedly connected to the upper surface of the housing (11). The interior of the air pump (306) is fixedly connected to a suction pipe (307), and the interior of the suction pipe (307) is connected to the interior of the connecting pipe (308). The air pump (306) is fixedly connected to a discharge pipe (305), and the interior of the discharge pipe (305) is fixedly connected to a distribution pipe (304). The interior of the distribution pipe (304) is fixedly connected to two manual valves (303).

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