Anti-toppling stable acetylene storage bottle

By designing the sliding connection between the movable base and the fixed base and the pressure compensation mechanism of the rubber inner liner, the problems of movement and pressure reduction of the acetylene storage tank are solved, achieving convenient movement and pressure stability.

CN119309145AActive Publication Date: 2025-01-14JIANGSU TIANHAI SPECIAL EQUIPMENT CO LTD

Patent Information

Application Number
CN202411377500.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-01-14
Estimated Expiration
2044-09-30

AI Technical Summary

Technical Problem

Existing acetylene storage tanks need to be disassembled and reassembled when moving, and the internal pressure reduction after acetylene fuel is used has affected gasification and stable output.

Method used

A stable acetylene storage bottle consisting of a movable base, a fixed base and a rubber inner liner is designed. The sliding connection and spacing adjustment mechanism of the movable base and the fixed base are used to achieve disassembly movement, and the pressure is carried out using a one-way air valve and high-pressure air. compensate.

Benefits of technology

It improves the movement convenience and stability of acetylene storage tank, ensures the initial state of the pressure of the acetylene tank, and extends the service life of acetylene fuel.

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Abstract

The invention discloses an anti-toppling stable acetylene storage bottle, and belongs to the field of storage tanks, the anti-toppling stable acetylene storage bottle comprises a movable base and a fixed base, two semicircular filling grooves are internally provided with a storage tank, the storage tank is fixedly connected with the fixed base, and the storage tank is slidably connected with the movable base; an air outlet valve body is arranged at the front end of the storage tank; and two anti-collision brackets are fixedly mounted on the movable base. When the device is used, the movable base, the fixed base and the storage tank are in a flat state, the first grounding wheel and the second grounding wheel can make contact with the ground, a worker can lift up the lifting frame, the worker can slide and move a station through the lifting frame traction device, and after the storage tank device moves to a new position, the worker can move the storage tank through the lifting frame traction device. Then the movable base, the fixed base and the storage tank are erected, and when the expansion support makes contact with the ground, the ground of the device can be enlarged, so that the stability of the device is improved.
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Description

Technical Field

[0001] The invention relates to the field of storage tanks, and in particular to a stable acetylene storage bottle capable of preventing tipping over. Background Art

[0002] With the development of industrial technology, modern storage tank technology has become more and more perfect. Acetylene, as a flammable substance, can be used as a fuel for flame cutting. Gaseous acetylene will become liquid under the high pressure inside the storage tank. Acetylene is a flammable and explosive item, so the storage tank for storing acetylene needs close protection measures to ensure the safety of acetylene. In the past, acetylene storage tanks were cylindrical devices. Such acetylene storage tanks fell down in an upright state, which easily caused the acetylene storage tanks to be damaged or even leaked. Therefore, a device that can prevent the acetylene storage tanks from falling down is needed.

[0003] For example, an oxygen acetylene cylinder anti-dumping device disclosed in application No. 202321193417.5 is applicable to the technical field of oxygen acetylene cylinder protection, and the problem to be solved is to provide an oxygen acetylene cylinder anti-dumping device, and the adopted scheme is: bottom ring, connecting plate, support rod, top ring and baffle, and the connecting plate is symmetrically fixedly installed inside the bottom ring. Compared with the traditional anti-dumping device, the device can provide stable support and protection for the bottle body itself when in use, so that the oxygen acetylene cylinder is more stable when in use, and no longer adopts the traditional bundling method, so that the positioning of the equipment itself is more stable, which improves the safety and stability of the equipment when in use, and ensures the work quality of subsequent work. It can also effectively adjust the distance between each bottle body to prevent the bottle body from colliding due to being too close, so that the use and storage of the equipment itself are more stable, and the overall work quality is improved; the utility model is also applicable to the field of experimental tool production;

[0004] The device has the following defects when in use. First, the acetylene storage tank needs to be removed from the bracket every time the device is moved. The acetylene storage tank and the bracket need to be assembled again after they are moved to a new position, which consumes a lot of manpower for assembly operations. Second, the volume of the acetylene storage tank is fixed. After a part of the acetylene fuel is used, the pressure inside the acetylene storage tank will decrease, which will affect the gasification and stable output of the acetylene fuel. Summary of the invention

[0005] The object of the present invention is to provide a stable acetylene storage bottle that can prevent tipping. When the device is in use, the movable base, the fixed base and the storage tank are in a flat state, and the first grounding wheel and the second grounding wheel can both contact the ground. The staff can lift up the lifting frame, and the staff can slide and move the workstation through the lifting frame traction device. After the storage tank device is moved to a new position, the movable base, the fixed base and the storage tank are erected. When the extended bracket contacts the ground, the ground of the device can be enlarged to improve the stability of the device, and then the acetylene storage tank can be moved without being disassembled, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable acetylene storage bottle that prevents tipping, comprising a movable base and a fixed base, the tops of the movable base and the fixed base are both provided with semicircular filling grooves, storage tanks are provided inside the two semicircular filling grooves, the storage tanks are fixedly connected to the fixed base, the storage tanks are slidably connected to the movable base, the bottom end of the movable base is provided with two first grounding wheels, and the bottom end of the fixed base is provided with two second grounding wheels; an air outlet valve body is provided at the front end of the storage tank; two anti-collision brackets are fixedly installed on the movable base, the anti-collision brackets surround the outer side of the air outlet valve body, and a spacing adjustment mechanism is provided between the movable base and the fixed base; a lifting assembly is provided at the top of the fixed base, and extension brackets are provided on the left and right sides of the fixed base, the width of the extension bracket is three times the diameter of the storage tank, and the extended length of the end of the extension bracket is less than the extended length of the first grounding wheel and the second grounding wheel.

[0007] Furthermore, the spacing adjustment mechanism includes two load-bearing rods on the side walls of the movable base, the load-bearing rods are provided with a plurality of positioning holes in a straight line array, and the fixed base is provided with a fixing pin hole, and the fixing pin hole and the positioning hole are plugged together by a locking pin rod.

[0008] Furthermore, the lifting assembly includes semicircular lying grooves on both sides of the fixed base, a lifting frame is arranged inside the semicircular lying groove, the lifting frame is rotatably connected to the rear end of the fixed base through a hinge block, and an arc handle is arranged at the front end of the lifting frame, the contour curve of the arc handle matches the cross-sectional contour of the storage tank, and the arc handle is engaged with the outer surface of the storage tank.

[0009] Furthermore, the edge of the semicircular lying groove is also provided with an elastic buckle, and the material of the elastic buckle is elastic plastic.

[0010] Furthermore, the left and right side walls of the movable base are both provided with plug-in holes, and the two ends of the anti-collision bracket are inserted into the plug-in holes. The interior of the anti-collision bracket is a steel bar core, and the exterior of the anti-collision bracket is a rubber sleeve.

[0011] Furthermore, the edges of the left and right sides of the movable base are both provided with interlaced semicircular grooves matching the lifting frame.

[0012] Furthermore, the storage tank is made of high-speed steel with a wall thickness of eight millimeters, a rubber liner is provided inside the storage tank, the outer wall of the top port of the rubber liner and the inner wall of the top port of the storage tank are fixedly connected, lubricating oil is applied to the gap between the storage tank and the rubber liner, and a pressure compensation mechanism is provided at the bottom of the storage tank.

[0013] Furthermore, the pressure compensation mechanism includes a valve body channel at the bottom of the storage tank, a one-way air valve is installed inside the valve body channel, and the one-way air valve connects the space inside and outside the storage tank.

[0014] Furthermore, the side wall of the rubber liner is a three-layer structure, the inner and outer side structures of the rubber liner are two millimeters thick rubber layers, and the middle structure of the rubber liner is a polyester woven mesh, and the polyester woven mesh and the rubber layers on the inner and outer sides are hot-fused together.

[0015] In summary, due to the adoption of the above technology, the beneficial effects of the present invention are:

[0016] Firstly, when the device is in use, the movable base, the fixed base and the storage tank are in a lying state, and the first grounding wheel and the second grounding wheel can both touch the ground. The staff can lift up the lifting frame, and the staff can slide and move the workstation through the lifting frame traction device. After the storage tank device is moved to a new position, the movable base, the fixed base and the storage tank are erected. When the extended bracket touches the ground, the ground of the device can be enlarged to improve the stability of the device, and then the acetylene storage tank can be moved without being disassembled.

[0017] Secondly, after part of the acetylene fuel inside the storage tank is used, the pressure inside the storage tank will decrease. The staff uses a high-pressure air machine to aim at the one-way air valve to start inputting high-pressure air. After the high-pressure air is input into the storage tank, the gap between the storage tank and the rubber liner will become larger, and the acetylene loaded inside the rubber liner will be further compressed until the pressure inside the rubber liner is re-pressurized to the initial pressure, thereby achieving the effect of acetylene tank pressure compensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a schematic diagram showing a front view of a stable acetylene storage bottle that prevents tipping.

[0019] Figure 2 A schematic diagram of a side view of a stable acetylene storage bottle that prevents tipping.

[0020] Figure 3 A schematic diagram of a stable one-way gas valve for acetylene storage bottles that prevents tipping.

[0021] Figure 4 A schematic diagram of a load-bearing rod for a stable acetylene storage bottle to prevent tipping.

[0022] Figure 5 The diagram is a schematic diagram of an acetylene storage bottle which is stable and prevents tipping over, viewed from above.

[0023] Figure 6 A schematic diagram of a stable acetylene storage bottle storage tank that prevents tipping.

[0024] Figure 7 The present invention is a schematic diagram of a stable acetylene storage bottle lifting rack that prevents tipping.

[0025] Description of reference numerals:

[0026] Movable base 1, first grounding wheel 101, fixed base 2, second grounding wheel 201, storage tank 3, air outlet valve body 301, one-way air valve 302, valve body channel 303, rubber liner 304, extension bracket 4, anti-collision bracket 5, load-bearing rod 6, positioning hole 601, locking pin rod 602, lifting frame 7, hinge block 701, elastic buckle 702. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] The present invention provides Figure 1-Figure 7A stable acetylene storage bottle for preventing tipping is shown, comprising a movable base 1 and a fixed base 2, wherein the tops of the movable base 1 and the fixed base 2 are both provided with semicircular filling grooves, storage tanks 3 are provided inside the two semicircular filling grooves, the storage tanks 3 are fixedly connected to the fixed base 2, the storage tanks 3 are slidably connected to the movable base 1, the bottom end of the movable base 1 is provided with two first grounding wheels 101, and the bottom end of the fixed base 2 is provided with two second grounding wheels 201; an air outlet valve body 301 is provided at the front end of the storage tank 3; two anti-collision brackets 5 are fixedly installed on the movable base 1, the anti-collision brackets 5 surround the outer side of the air outlet valve body 301, and a spacing adjustment mechanism is provided between the movable base 1 and the fixed base 2; a lifting assembly is provided at the top of the fixed base 2, and extension brackets 4 are provided on the left and right sides of the fixed base 2, the width of the extension bracket 4 is three times the diameter of the storage tank 3, and the extended length of the end of the extension bracket 4 is less than the distance between the first grounding wheel 101 and the second grounding wheel 101. The extended length of the ground wheel 201, when the device is in use, the movable base 1, the fixed base 2 and the storage tank 3 are in a lying state, and the first ground wheel 101 and the second ground wheel 201 can both contact the ground, and the staff can pull the device to slide and move the workstation, and wait until the storage tank 3 device is moved to a new position, and then the movable base 1, the fixed base 2 and the storage tank 3 are erected, and when the extended bracket 4 contacts the ground, the ground of the device can be enlarged to improve the stability of the device, and then the acetylene storage tank 3 can be moved without being disassembled. Compared with the acetylene tank body fixing device of the prior art, the previous acetylene tank body fixing device needs to separate the acetylene tank body and the fixed bracket every time it moves, and wait until the acetylene tank body and the fixed bracket are pushed to the new position again, and then the acetylene tank body and the fixed bracket are assembled. The present invention does not need to disassemble the device to move the position, and the device of the present invention can be directly laid down and pulled to move to a new position, which increases the convenience of moving the device.

[0029] The spacing adjustment mechanism includes two load-bearing rods 6 on the side wall of the movable base 1, and the load-bearing rods 6 are provided with a plurality of positioning holes 601 in a straight line array, and the fixed base 2 is provided with a fixing pin hole, and the fixing pin hole and the positioning hole 601 are plugged together through a locking pin 602. When the spacing between the movable base 1 and the fixed base 2 needs to be changed, the locking pin 602 is pulled out, and when the fixing pin hole and other positioning holes 601 overlap again, the locking pin 602 is inserted back and locked again. When the movable base 1 is fixed to the base 2, the two anti-collision brackets 5 on the movable base 1 are just on the outside of the air outlet valve body 301, and then the anti-collision brackets 5 can protect the air outlet valve body 301 from being installed during the process of lying down and pushing the storage tank 3. When the storage tank 3 is erected, the movable base 1 is dropped down and merged into the fixed base 2, which can lower the center of gravity of the device as a whole and increase the stability of the device.

[0030] The lifting assembly includes semicircular lying grooves on both sides of the fixed base 2, and a lifting frame 7 is arranged inside the semicircular lying groove. The lifting frame 7 is rotatably connected to the rear end of the fixed base 2 through a hinge block 701, and an arc handle is arranged at the front end of the lifting frame 7. The contour curve of the arc handle matches the cross-sectional contour of the storage tank 3, and the arc handle is engaged with the outer surface of the storage tank 3. The staff can lift the lifting frame 7, and the staff can slide and move the workstation through the traction device of the lifting frame 7.

[0031] The edge of the semicircular lying groove is also provided with an elastic buckle 702 , and the material of the elastic buckle 702 is elastic plastic. When the lifting frame 7 is not in use, the lifting frame 7 is pressed toward the inside of the semicircular lying groove until the lifting frame 7 passes over the elastic buckle 702 .

[0032] The left and right side walls of the movable base 1 are both provided with plug-in holes, and the two ends of the anti-collision bracket 5 are inserted into the plug-in holes. The interior of the anti-collision bracket 5 is a steel bar core, and the exterior of the anti-collision bracket 5 is a rubber sleeve. The rubber sleeve on the exterior of the anti-collision bracket 5 has a certain flexibility, and therefore, when the device is installed to collide with an obstacle, there will be no rigid collision between the anti-collision bracket 5 and the obstacle, and it has a certain buffering effect on the acetylene storage tank.

[0033] The edges of the left and right sides of the movable base 1 are both provided with interlaced semicircular grooves matching the lifting rack 7 , and the interlaced semicircular grooves on the movable base 1 reserve a storage position for the lifting rack 7 .

[0034] The storage tank 3 is made of high-speed steel with a wall thickness of eight millimeters. A rubber liner 304 is arranged inside the storage tank 3. The outer wall of the top port of the rubber liner 304 is fixedly connected to the inner wall of the top port of the storage tank 3. Lubricating oil is applied to the gap between the storage tank 3 and the rubber liner 304. A pressure compensation mechanism is arranged at the bottom of the storage tank 3. After a part of the acetylene fuel inside the storage tank 3 is used, the pressure inside the storage tank 3 will decrease accordingly. The pressure compensation mechanism starts to apply pressure to the storage tank 3, and then the gap between the storage tank 3 and the rubber liner 304 will increase, and the acetylene loaded inside the rubber liner 304 will be further compressed until the pressure inside the rubber liner 304 is re-pressurized to the initial pressure, thereby achieving the effect of pressure compensation of the acetylene tank body.

[0035] The pressure compensation mechanism includes a valve body channel 303 at the bottom of the storage tank 3, and a one-way air valve 302 is installed inside the valve body channel 303. The one-way air valve 302 connects the space inside and outside the storage tank 3. The staff uses a high-pressure air machine to aim at the one-way air valve 302 and starts to input high-pressure air. The high-pressure air is input into the gap between the storage tank and the rubber liner 304.

[0036] The side wall of the rubber liner 304 is a three-layer structure. The inner and outer structures of the rubber liner 304 are two-millimeter thick rubber layers. The middle structure of the rubber liner 304 is a polyester woven mesh. The polyester woven mesh and the rubber layers on the inner and outer sides are hot-melt together. The polyester woven mesh in the middle layer of the rubber liner 304 can prevent the rubber liner 304 from being torn, thereby increasing the strength of the rubber liner 304.

[0037] Working principle: When the device is in use, the movable base 1, the fixed base 2 and the storage tank 3 are in a flat state, and the first grounding wheel 101 and the second grounding wheel 201 can both touch the ground. The staff can pull the device to slide and move the workstation. After the storage tank 3 device is moved to a new position, the movable base 1, the fixed base 2 and the storage tank 3 are erected. When the extension bracket 4 touches the ground, the ground of the device can be enlarged to improve the stability of the device, and then the acetylene storage tank 3 can be moved without being disassembled. Compared with the acetylene tank fixing device of the prior art, the acetylene tank and the fixed bracket need to be separated each time the acetylene tank fixing device is moved. After the acetylene tank body and the fixed bracket are pushed to the new position again, the acetylene tank body and the fixed bracket are assembled again. The present invention does not need to disassemble the device to move the position. The device of the present invention can be directly moved to a new position by lying down, thereby increasing the convenience of moving the device. When the distance between the movable base 1 and the fixed base 2 needs to be changed, the locking pin 602 is pulled out, and the locking pin 602 is inserted back and locked again when the fixed pin hole and the other positioning hole 601 overlap again. When the movable base 1 is fixed to the base 2, the two anti-collision brackets 5 on the movable base 1 are just on the outside of the gas outlet valve body 301, so that when the storage tank 3 is lying down and pushed, the anti-collision bracket 5 can protect the gas outlet valve body. The body 301 is not installed. When the storage tank 3 is erected, the movable base 1 is dropped and merged into the fixed base 2. This can lower the center of gravity of the device as a whole and increase the stability of the device. The staff can lift the lifting frame 7, and the staff can slide and move the workstation through the lifting frame 7 traction device. When the lifting frame 7 is not in use, the lifting frame 7 is pressed toward the inside of the semicircular lying groove until the lifting frame 7 passes over the elastic buckle 702. The rubber sleeve on the outside of the anti-collision bracket 5 has a certain flexibility, and then when the device is installed to collide with obstacles, there will be no rigid collision between the anti-collision bracket 5 and the obstacle, which has a certain buffering effect on the acetylene storage tank. The interlaced semicircular grooves on the movable base 1 reserve storage space for the lifting frame 7. After a part of the acetylene fuel in the storage tank 3 is used, the pressure inside the storage tank 3 will decrease, and the pressure compensation mechanism will begin to apply pressure to the storage tank 3, thereby increasing the gap between the storage tank 3 and the rubber liner 304, and the acetylene loaded into the rubber liner 304 will be further compressed until the pressure inside the rubber liner 304 is re-pressurized to the initial pressure, thereby achieving the effect of acetylene tank pressure compensation. The staff uses a high-pressure air machine to aim at the one-way air valve 302 and begins to input high-pressure air. The high-pressure air is input into the gap between the storage tank and the rubber liner 304, and the nylon woven mesh in the middle layer of the rubber liner 304 can prevent the rubber liner 304 from being torn, thereby increasing the strength of the rubber liner 304.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A stable acetylene storage bottle that prevents tipping, characterized in that: The invention comprises a movable base (1) and a fixed base (2), wherein the top of each of the movable base (1) and the fixed base (2) is provided with a semicircular filling groove, and a storage tank (3) is provided inside the two semicircular filling grooves, wherein the storage tank (3) and the fixed base (2) are fixedly connected, and the storage tank (3) and the movable base (1) are slidably connected, and the bottom end of the movable base (1) is provided with two first grounding wheels (101), and the bottom end of the fixed base (2) is provided with two second grounding wheels (201); The front end of the storage tank (3) is provided with an air outlet valve body (301); Two anti-collision brackets (5) are fixedly mounted on the movable base (1), the anti-collision brackets (5) surround the outer side of the outlet valve body (301), and a spacing adjustment mechanism is provided between the movable base (1) and the fixed base (2); A lifting assembly is provided at the top of the fixed base (2), and extension brackets (4) are provided on both the left and right sides of the fixed base (2). The width of the extension bracket (4) is three times the diameter of the storage tank (3), and the extension length of the end of the extension bracket (4) is less than the extension length of the first grounding wheel (101) and the second grounding wheel (201).

2. The anti-tilting stable acetylene storage bottle according to claim 1, characterized in that: The spacing adjustment mechanism comprises two load-bearing rods (6) on the side wall of the movable base (1), the load-bearing rods (6) are provided with a plurality of positioning holes (601) in a straight line array, and the fixed base (2) is provided with a fixing pin hole, and the fixing pin hole and the positioning hole (601) are plugged together via a locking pin rod (602).

3. The anti-tilting stable acetylene storage bottle according to claim 1, characterized in that: The lifting assembly comprises semicircular lying grooves on both sides of the fixed base (2), a lifting frame (7) is arranged inside the semicircular lying groove, the lifting frame (7) is rotatably connected to the rear end of the fixed base (2) through a hinge block (701), and an arc handle is arranged at the front end of the lifting frame (7), the contour curve of the arc handle matches the cross-sectional contour of the storage tank (3), and the arc handle is engaged with the outer surface of the storage tank (3).

4. The anti-tilting stable acetylene storage bottle according to claim 3, characterized in that: The edge of the semicircular lying groove is also provided with an elastic buckle (702), and the material of the elastic buckle (702) is elastic plastic.

5. The anti-tilting stable acetylene storage bottle according to claim 1, characterized in that: The left and right side walls of the movable base (1) are both provided with plug-in holes, and the two ends of the anti-collision bracket (5) are inserted into the plug-in holes. The interior of the anti-collision bracket (5) is a steel bar core, and the exterior of the anti-collision bracket (5) is a rubber sleeve.

6. The anti-tilting stable acetylene storage bottle according to claim 1, characterized in that: The edges on both the left and right sides of the movable base (1) are provided with interlaced semicircular grooves matching the lifting frame (7).

7. The anti-tilting stable acetylene storage bottle according to claim 1, characterized in that: The storage tank (3) is made of high-speed steel with a wall thickness of eight millimeters. A rubber liner (304) is arranged inside the storage tank (3). The outer wall of the top end port of the rubber liner (304) and the inner wall of the top end port of the storage tank (3) are fixedly connected. Lubricating oil is applied to the gap between the storage tank (3) and the rubber liner (304). A pressure compensation mechanism is arranged at the bottom of the storage tank (3).

8. The anti-tilting stable acetylene storage bottle according to claim 7, characterized in that: The pressure compensation mechanism comprises a valve body channel (303) at the bottom of the storage tank (3), a one-way air valve (302) is installed inside the valve body channel (303), and the one-way air valve (302) connects the space inside and outside the storage tank (3).

9. The anti-tilting stable acetylene storage bottle according to claim 7, characterized in that: The side wall of the rubber liner (304) is a three-layer structure, the inner and outer side structures of the rubber liner (304) are two millimeters thick rubber layers, and the middle structure of the rubber liner (304) is a polyester woven mesh, and the polyester woven mesh and the rubber layers on the inner and outer sides are hot-fused together.

Citation Information

Patent Citations

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  • Gas cylinder transfer car(buggy)

    CN204998568U

  • Novel adjustable gas bottle holder

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  • Oxygen acetylene trolley convenient to combine

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