Pressure container
By designing a pressure vessel with automatic pressure relief and real-time monitoring, the time-consuming and labor-intensive problem of manual pressure adjustment in the prior art is solved, and automatic adjustment and safety guarantee of the internal pressure of the tank body is achieved.
Patent Information
- Application Number
- CN202411739926.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-03-18
AI Technical Summary
When monitoring and adjusting internal pressure, existing pressure vessels require manual intervention, which is time-consuming and labor-intensive, and cannot be adjusted in real time. There is a possibility of human error and may lead to equipment damage or safety accidents in emergencies.
A pressure vessel including an exhaust unit, a sealing unit and a moving tube assembly is designed. The exhaust unit realizes automatic pressure relief of gas inside the tank through the cooperation of the first connecting assembly and the snap assembly; the sealing unit uses sealing assembly and reset assembly to ensure tight sealing under normal conditions and automatically relieves pressure when the pressure is too high; the moving pipe assembly is meshed and connected by the rack and push rod to realize position control of the exhaust assembly and the head assembly.
It realizes automatic adjustment and real-time monitoring of internal pressure of the tank, reduces the need for manual intervention, reduces the possibility of human error, and can quickly and effectively reduce internal pressure in emergencies to ensure the safe operation of the equipment.
Smart Images
Figure CN119641901A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of chemical containers, and in particular to a pressure container. Background Art
[0002] Pressure vessels are closed equipment that can withstand internal pressure and are widely used in industries such as petroleum, chemical, electric power, and nuclear energy. They are usually used to store gas or liquid and can operate safely under high pressure. Safety accessories in pressure vessels are a key part to ensure the safe operation of the equipment. They can monitor and control important parameters such as pressure and temperature in the container and take emergency measures when abnormal conditions occur;
[0003] Current pressure vessels usually rely solely on traditional pressure gauges to monitor internal pressure. Although this method can meet basic needs to a certain extent, it has obvious limitations. When the internal working pressure of a pressure vessel exceeds the preset safety range, operators are often required to manually intervene and adjust it, which is not only time-consuming and labor-intensive, but also increases the possibility of human error. More importantly, in certain emergency situations, if the excessive internal pressure cannot be reduced quickly and effectively, it may cause equipment damage, material leakage, or even more serious safety accidents. Summary of the invention
[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the present invention.
[0005] In view of the problem that the above-mentioned existing pressure vessels usually require manual adjustment of the pressure inside the container, which is time-consuming and labor-intensive and cannot be adjusted in real time, the present invention is proposed.
[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pressure vessel, comprising an exhaust unit, the exhaust unit comprising a first linkage assembly fixedly connected to a moving tube assembly, and a locking assembly is provided on one side of the first linkage assembly, a head assembly is provided inside the moving tube assembly, and an exhaust assembly is fixedly connected to the moving tube assembly;
[0007] An air outlet unit, the air outlet unit comprising a mounting assembly and a transmission gear meshingly connected to the mounting assembly, one end of the mounting assembly is connected to an exhaust pipe head, the mounting assembly comprises a mounting ring and a connecting slider fixedly connected to the mounting ring, one side of the mounting ring is cooperatively connected to a moving straight rod, and the moving straight rod is fixedly connected to a second rack;
[0008] The sealing unit comprises a sealing component and a reset component fixedly connected to one side of the sealing component, and a sealing plate is fixedly connected to the outer side of the sealing component.
[0009] As a preferred embodiment of the pressure vessel of the present invention, there is a storage tank unit, which includes a tank body and an opening on the tank body, a connecting pipe is provided on one side of the opening, and a pressure relief pipe is provided on the other side of the connecting pipe, and a pressure gauge is installed on the tank body.
[0010] As a preferred solution of the pressure vessel of the present invention, wherein: the moving tube assembly comprises a moving tube body and a first connecting hole opened on the moving tube body;
[0011] The first linkage assembly includes a first rack and a push rod fixedly connected to the first rack.
[0012] As a preferred solution of the pressure vessel of the present invention, the positioning assembly includes a rotating ring and a stop rod fixedly connected to the rotating ring, and the rotating ring is fixedly connected to a contact rod, and the contact rod is fixedly connected to a first spring.
[0013] As a preferred solution of the pressure vessel of the present invention, the rotating connecting ring is rotatably connected inside the tank body, and the rotating connecting rings are distributed at equal angles on the outside of the moving tube assembly.
[0014] As a preferred solution of the pressure vessel described in the present invention, the head assembly includes a head body and a second connecting hole opened on the head body, one end of the head body is fixedly connected to a rotating sleeve rod, and a guide slide is opened inside the rotating sleeve rod.
[0015] As a preferred solution of the pressure vessel described in the present invention, the exhaust assembly includes an exhaust square tube and a third connecting hole opened on the exhaust square tube, the interior of the exhaust square tube is fixedly connected with a fixed connecting rod, and one end of the fixed connecting rod is fixedly connected with a positioning connecting rod.
[0016] As a preferred solution of the pressure vessel described in the present invention, the sealing assembly includes a sealing block and a positioning slope opened on the sealing block, an air vent is opened inside the sealing block, a fourth connecting hole is opened on one side of the air vent, and a fifth connecting hole is opened on the side of the air vent opposite to the fourth connecting hole.
[0017] As a preferred solution of the pressure vessel described in the present invention, the reset assembly includes a reset connecting rod and a positioning connecting rod arranged inside the reset connecting rod, and one end of the positioning connecting rod is fixedly connected to a sliding connecting ball, and the reset connecting rod is fixedly connected to a second spring.
[0018] As a preferred solution of the pressure vessel of the present invention, one end of the positioning connecting rod is fixedly connected to the tank body, and the end of the positioning connecting rod where the sliding connecting ball is located is cooperatively connected to the rotating sleeve rod.
[0019] The beneficial effects of the present invention are as follows: an exhaust unit and a sealing unit are provided to seal and preserve the gas in the tank body; when the pressure inside the tank body is too high, the pressure will push the sealing assembly and the sealing plate to move. At this time, since the position of the moving pipe assembly is fixed, the position of the exhaust assembly remains unchanged, and the movement of the sealing assembly will cause the exhaust assembly to extend out of the interior of the sealing assembly. At this time, the gas inside the tank body will enter the air duct through the third connecting hole. At this time, the fourth connecting hole moves to cooperate with the pressure relief pipe, so that the gas in the tank body will be discharged through the pressure relief pipe, reducing the pressure in the tank body to ensure safety; after the pressure is released, the sealing assembly and the sealing plate are reset under the action of the reset assembly to restore the sealed preservation state.
[0020] When the gas in the tank needs to be taken out, the exhaust pipe head is sleeved on one side of the installation assembly, and the connecting ring is rotated to install and fix the exhaust pipe head. At this time, due to the meshing connection between the second rack, the transmission gear and the first rack, the movable pipe body moves, and the head body moves synchronously. The cooperation between the sliding connection ball and the guide slideway can then be used to rotate the head body, and then the second connecting hole is matched with the fifth connecting hole to take out the gas in the tank.
[0021] When the moving tube assembly moves, the push rod will move synchronously and drive the locking assembly to rotate, so that the locking assembly presses the sealing assembly, thereby limiting the position of the sealing assembly and preventing the sealing assembly from moving; since the sealing assembly will not move at this time, the fourth connecting hole will not be connected to the pressure relief pipe, ensuring that the gas will not be discharged from the pressure relief pipe when the gas in the tank is taken out. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative labor.
[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention.
[0025] Figure 3 It is a schematic cross-sectional structure diagram of the connection between the exhaust unit and the air outlet unit of the present invention.
[0026] Figure 4 It is a schematic diagram of the cross-sectional structure of the moving tube assembly and the sealing assembly of the present invention.
[0027] Figure 5 It is a schematic diagram of the structure of the connection between the moving pipe assembly and the exhaust assembly of the present invention.
[0028] Figure 6 It is a schematic cross-sectional structure diagram of the connection between the mounting assembly of the present invention and the exhaust pipe head.
[0029] Figure 7 It is a schematic diagram of the cross-sectional structure of the sealing unit of the present invention.
[0030] Figure 8 It is a structural schematic diagram of the connection between the head assembly and the reset assembly in the present invention.
[0031] Fig. 9 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0032] Fig.10 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.
[0033] In the figure: 10, exhaust unit; 11, moving tube assembly; 111, moving tube body; 112, first connecting hole; 12, first linkage assembly; 121, first rack; 122, push rod; 13, positioning assembly; 131, rotating ring; 132, push rod; 133, contact rod; 134, first spring; 14, head assembly; 141, head body; 142, second connecting hole; 143, rotating sleeve rod; 144, guide slide; 15, exhaust assembly; 151, exhaust square tube; 152, third connecting hole; 153, fixed connecting rod; 154, positioning connecting rod; 20, air outlet unit; 21, installation Assembly; 211, mounting ring; 212, connecting slider; 213, moving straight rod; 214, second rack; 22, transmission gear; 23, exhaust pipe head; 30, sealing unit; 31, sealing assembly; 311, sealing block; 312, positioning ramp; 313, air duct; 314, fourth connecting hole; 315, fifth connecting hole; 32, reset assembly; 321, reset connecting rod; 322, positioning connecting rod; 323, sliding connecting ball; 324, second spring; 33, sealing plate; 40, storage tank unit; 41, tank body; 42, opening; 43, connecting pipe; 44, pressure relief pipe; 45, pressure gauge. DETAILED DESCRIPTION
[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0036] Example
[0037] Reference Figures 1 to 10 , as an embodiment of the present invention, provides a pressure vessel, such as Figure 2 to Figure 5 and Fig. 9 As shown, it includes an exhaust unit 10, an air outlet unit 20, a sealing unit 30 and a storage tank unit 40. The exhaust unit 10 includes a first linkage assembly 12 fixedly connected to a moving tube assembly 11, and a locking assembly 13 is provided on one side of the first linkage assembly 12. The locking assembly 13 is rotatably connected to the inside of the tank body 41. At the same time, the first linkage assembly 12 corresponds to the locking assembly 13, and the movement of the first linkage assembly 12 can drive the locking assembly 13 to rotate. A head assembly 14 is provided inside the moving tube assembly 11, and an exhaust assembly 15 is fixedly connected to the moving tube assembly 11. The head assembly 14 is rotatably installed inside the moving tube assembly 11, and the moving tube assembly 11 can move inside the tank body 41.
[0038] The moving tube assembly 11 includes a moving tube body 111 and a first connecting hole 112 opened on the moving tube body 111, and the position of the first connecting hole 112 is changed by the movement of the moving tube body 111; the first linkage assembly 12 includes a first rack 121 and a push rod 122 fixedly connected to the first rack 121, the first rack 121 is fixedly connected to the moving tube body 111, and is distributed at equal angles on the moving tube body 111, and the push rod 122 is connected to the first rack 121 on one side close to the positioning assembly 13.
[0039] The locking assembly 13 includes a rotating ring 131 and a push rod 132 fixedly connected to the rotating ring 131. The rotating ring 131 is rotatably installed inside the tank body 41, and the rotating ring 131 is distributed at equal angles on the outside of the moving tube body 111 and is correspondingly arranged with the first rack 121. A contact inclined surface is provided on one side of the push rod 132, and a contact rod 133 is fixedly connected to the rotating ring 131. The contact rod 133 is in contact with the push rod 122, and the movement of the push rod 122 can drive the contact rod 133 to move, thereby causing the rotating ring 131 to rotate. A first spring 134 is fixedly connected to the contact rod 133, and the other end of the first spring 134 is fixedly connected to the tank body 41. The rotation of the locking assembly 13 is reset by the setting of the first spring 134.
[0040] The end cap assembly 14 includes an end cap body 141 and a second connecting hole 142 provided on the end cap body 141. The second connecting hole 142 can be adjusted in position by rotating the end cap body 141, and can be separated from and connected to the first connecting hole 112. A rotating sleeve rod 143 is fixedly connected to one end of the end cap body 141, and the rotating sleeve rod 143 is simultaneously rotatably mounted on the moving tube body 111 to limit the overall position of the end cap assembly 14. A guide slide 144 is provided inside the rotating sleeve rod 143, and the guide slide 144 is centrally symmetrically arranged inside the rotating sleeve rod 143. The exhaust assembly 1 The exhaust square tube 151 includes a third connecting hole 152 provided on the exhaust square tube 151. The third connecting hole 152 is provided on four sides of the exhaust square tube 151. A fixing connecting rod 153 is fixedly connected inside the exhaust square tube 151. One end of the fixing connecting rod 153 is fixedly connected to a positioning connecting rod 154. One end of the positioning connecting rod 154 is fixedly connected to the moving tube body 111. By providing the positioning connecting rod 154, the exhaust square tube 151 and the fixing connecting rod 153 are connected to the moving tube body 111. The exhaust square tube 151 is driven to move by moving the position of the moving tube body 111.
[0041] like Figure 3 and Figure 6 As shown, the air outlet unit 20 includes a mounting assembly 21 and a transmission gear 22 meshingly connected to the mounting assembly 21, the mounting assembly 21 is limitedly moved inside the tank body 41, and the transmission gear 22 is rotatably installed inside the tank body 41, one end of the mounting assembly 21 is connected to an exhaust pipe head 23, the exhaust pipe head 23 is clamped on the tank body 41, and the exhaust pipe head 23 is fixedly connected through the mounting assembly 21, the mounting assembly 21 includes a mounting ring 211 and a connecting slider 212 fixedly connected to the mounting ring 211, the mounting ring 211 is rotatably installed on the tank body 41, and the threaded connection between the mounting ring 211 and the exhaust pipe head 23 is used to adjust the exhaust pipe head 23. The pipe head 23 is installed and fixed, and a moving straight rod 213 is connected to one side of the installation ring 211, and a second rack 214 is fixedly connected to the moving straight rod 213. A slot is provided on the moving straight rod 213 for installation with the connecting slider 212, and the connecting slider 212 slides in the slot on the moving straight rod 213. When the installation ring 211 rotates, since the installation ring 211 is threadedly connected to the exhaust pipe head 23, the installation ring 211 will move and drive the moving straight rod 213 to move, and then the moving pipe assembly 11 is moved through the meshing connection between the second rack 214 and the transmission gear 22 and between the transmission gear 22 and the first rack 121.
[0042] like Figure 3 and Figure 7As shown, the sealing unit 30 includes a sealing component 31 and a reset component 32 fixedly connected to one side of the sealing component 31 , and a sealing plate 33 is fixedly connected to the outer side of the sealing component 31 .
[0043] The sealing assembly 31 includes a sealing block 311 and a positioning bevel 312 provided on the sealing block 311. The positioning bevel 312 can cooperate with the contact bevel on the support rod 132. The position of the sealing assembly 31 is limited by the positioning assembly 13. An air duct 313 is provided inside the sealing block 311. The exhaust square tube 151 slides inside the air duct 313. At the same time, the exhaust square tube 151 is sealed when sliding inside the air duct 313. A fourth connecting hole 314 is provided on one side of the air duct 313. The fourth connecting hole 314 can correspond to the position of the pressure relief pipe 44 and can be used to discharge excess gas and release the pressure inside the tank body 41. A fifth connecting hole 315 is provided on the side of the air duct 313 opposite to the fourth connecting hole 314. The fifth connecting hole 315 can correspond to the first connecting hole 112 and is used to take and put gas.
[0044] The reset assembly 32 includes a reset connecting rod 321 and a positioning connecting rod 322 arranged inside the reset connecting rod 321. The reset connecting rod 321 is fixed on the sealing assembly 31, and the positioning connecting rod 322 is fixed inside the tank body 41, so that the positioning connecting rod 322 and the reset connecting rod 321 can move relative to each other, and one end of the positioning connecting rod 322 is fixedly connected to a sliding connecting ball 323, and the end of the positioning connecting rod 322 where the sliding connecting ball 323 is located is matched and connected with the rotating sleeve rod 143, so that the sliding connecting ball 323 slides inside the guide slide 144, and a second spring 324 is fixedly connected to the reset connecting rod 321, and the other end of the second spring 324 is fixedly connected to the tank body 41, and the second spring 324 is used to reset the overall position of the sealing unit 30.
[0045] The storage tank unit 40 includes a tank body 41 and an opening 42 opened on the tank body 41. The opening 42 is installed in an openable manner using a sealing cover. A connecting pipe 43 is provided on one side of the opening 42, and a pressure relief pipe 44 is provided on the other side of the connecting pipe 43. The connecting pipe 43 and the pressure relief pipe 44 are both connected to the interior of the tank body 41. The connecting pipe 43 can be connected to a pipeline when necessary. The pressure relief pipe 44 is used to release gas when the pressure inside the tank body 41 is too high to maintain the pressure balance in the tank body 41. A pressure gauge 45 is installed on the tank body 41. The pressure gauge 45 is installed on the tank body 41 in a detachable manner to monitor the pressure value inside the tank body 41.
[0046] When in use, when the pressure inside the tank body 41 is stable, the sealing component 31 and the sealing plate 33 are located in a suitable position under the action of the second spring 324, and the sealing component 31 is used to seal the inside of the tank body 41 to prevent gas leakage; when the pressure inside the tank body 41 is too high, the force generated by the pressure is greater than the force provided by the second spring 324, so the sealing component 31 and the sealing plate 33 will move. At this time, since the exhaust component 15 is located inside the vent 313 and the exhaust component 15 is fixed on the moving pipe component 11 and the position remains unchanged, the exhaust square pipe 151 will eventually extend out of the vent 313. 3, so that the third connecting hole 152 is exposed to the inside of the tank body 41, and the gas in the tank body 41 will enter the exhaust square tube 151 and the air passage 313, and because the position of the sealing block 311 moves, the fourth connecting hole 314 will move synchronously and communicate with the pressure relief pipe 44, and the gas will enter the pressure relief pipe 44 and be discharged; at this time, although the fifth connecting hole 315 will also move to the first connecting hole 112 and communicate with it, because the position of the moving tube assembly 11 does not change, the head body 141 will not rotate, so that the second connecting hole 142 will not be connected with the first connecting hole 112, and the gas will not be discharged from here;
[0047] When it is necessary to connect the gas outlet unit 20 to take out the gas in the tank body 41, first clamp the exhaust pipe head 23 on the tank body 41, then rotate the mounting ring 211, and use the threaded connection between the mounting ring 211 and the exhaust pipe head 23 to fix the exhaust pipe head 23. Due to the matching connection between the connecting slider 212 and the moving straight rod 213, the position movement of the mounting ring 211 will drive the moving straight rod 213 and the second rack 214 to move. Due to the meshing connection between the second rack 214 and the transmission gear 22 and between the transmission gear 22 and the first rack 121, the moving pipe assembly 11 moves. At this time, the head assembly 14 will move synchronously. Due to the connection between the guide slide 144 and the sliding connection ball 323 , so that the head body 141 rotates, and then the second connecting hole 142 is connected with the first connecting hole 112, and the exhaust component 15 is fixedly connected to the movable tube body 111, so that the movement of the movable tube assembly 11 will drive the exhaust square tube 151 to move and extend out of the interior of the sealing block 311, and the first connecting hole 112 is connected with the fifth connecting hole 315, and the gas in the tank body 41 can be discharged; at the same time, when the first rack 121 moves, it will drive the push rod 122 to move and contact with the contact rod 133, push the rotating ring 131 to rotate, and then the push rod 132 rotates and contacts the positioning inclined surface 312, limit the position of the sealing block 311, and prevent gas from being discharged from the pressure relief pipe 44 when the gas in the tank body 41 is taken out.
[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.
Claims
1. A pressure vessel, characterized in that: include, An exhaust unit (10), the exhaust unit (10) comprising a first linkage assembly (12) fixedly connected to a moving tube assembly (11), and a locking assembly (13) is provided on one side of the first linkage assembly (12); a sealing head assembly (14) is provided inside the moving tube assembly (11), and an exhaust assembly (15) is fixedly connected to the moving tube assembly (11); An air outlet unit (20), the air outlet unit (20) comprising a mounting assembly (21) and a transmission gear (22) meshingly connected to the mounting assembly (21), one end of the mounting assembly (21) being connected to an exhaust pipe head (23), the mounting assembly (21) comprising a mounting ring (211) and a connecting slider (212) fixedly connected to the mounting ring (211), one side of the mounting ring (211) being cooperatively connected to a moving straight rod (213), and a second rack (214) being fixedly connected to the moving straight rod (213); A sealing unit (30) comprises a sealing component (31) and a reset component (32) fixedly connected to one side of the sealing component (31); a sealing plate (33) is fixedly connected to the outer side of the sealing component (31).
2. The pressure vessel according to claim 1, characterized in that: A storage tank unit (40) comprises a tank body (41) and an opening (42) provided on the tank body (41); a connecting pipe (43) is provided on one side of the opening (42); a pressure relief pipe (44) is provided on the other side of the connecting pipe (43); and a pressure gauge (45) is installed on the tank body (41).
3. The pressure vessel according to claim 2, characterized in that: The moving tube assembly (11) comprises a moving tube body (111) and a first connecting hole (112) provided on the moving tube body (111); The first linkage assembly (12) comprises a first rack (121) and a push rod (122) fixedly connected to the first rack (121).
4. The pressure vessel according to claim 3, characterized in that: The locking assembly (13) comprises a rotating ring (131) and a stop rod (132) fixedly connected to the rotating ring (131), and a contact rod (133) is fixedly connected to the rotating ring (131), and a first spring (134) is fixedly connected to the contact rod (133).
5. The pressure vessel according to claim 4, characterized in that: The rotating connecting ring (131) is rotatably connected inside the tank body (41), and the rotating connecting ring (131) is distributed at equal angles on the outside of the moving tube assembly (11).
6. The pressure vessel according to claim 5, characterized in that: The sealing head assembly (14) comprises a sealing head body (141) and a second connecting hole (142) provided on the sealing head body (141); one end of the sealing head body (141) is fixedly connected to a rotating sleeve rod (143), and a guide slideway (144) is provided inside the rotating sleeve rod (143).
7. The pressure vessel according to claim 6, characterized in that: The exhaust assembly (15) comprises an exhaust square tube (151) and a third connecting hole (152) provided on the exhaust square tube (151); a fixed connecting rod (153) is fixedly connected to the interior of the exhaust square tube (151), and one end of the fixed connecting rod (153) is fixedly connected to a positioning connecting rod (154).
8. The pressure vessel according to claim 7, characterized in that: The sealing assembly (31) comprises a sealing block (311) and a positioning inclined surface (312) provided on the sealing block (311); an air duct (313) is provided inside the sealing block (311); a fourth connecting hole (314) is provided on one side of the air duct (313); and a fifth connecting hole (315) is provided on a side of the air duct (313) opposite to the fourth connecting hole (314).
9. The pressure vessel according to claim 8, characterized in that: The reset assembly (32) comprises a reset connecting rod (321) and a positioning connecting rod (322) arranged inside the reset connecting rod (321), one end of the positioning connecting rod (322) is fixedly connected to a sliding connecting ball (323), and the reset connecting rod (321) is fixedly connected to a second spring (324).
10. The pressure vessel according to claim 9, characterized in that: One end of the positioning connecting rod (322) is fixedly connected to the tank body (41), and one end of the positioning connecting rod (322) where the sliding connecting ball (323) is located is matched and connected to the rotating sleeve rod (143).