Liquefied petroleum gas steel cylinder volume detection device

Abstract

The utility model relates to the technical field of volume detection devices, in particular to a liquefied petroleum gas steel cylinder volume detection device which comprises a base, a round positioning tray arranged on the top of the base, a steel cylinder placed on the round positioning tray, a U-shaped support arranged on the top of the base, and a hydraulic cylinder arranged on the top of the U-shaped support. A movable rod of the hydraulic cylinder penetrates through the top of the U-shaped support and is fixedly connected with a frame-shaped plate, a liquid storage measuring cylinder is arranged in the frame-shaped plate, a liquid outlet pipe is arranged at the bottom end of the liquid storage measuring cylinder, an electromagnetic valve is arranged on the liquid outlet pipe, a backflow pipe and a liquid injection pipe are arranged on the outer wall of the liquid storage measuring cylinder, and a water suction pump is arranged on the left side of the inner wall of the U-shaped support and close to the bottom. The input end of the water suction pump is provided with a water suction hose, and the output end of the water suction pump communicates with the return pipe through a water supply hose. According to the liquefied petroleum gas steel cylinder volume detection device, through cooperation of the water suction pump, the water suction hose and the water supply hose, detected liquid in the steel cylinder is recycled into the liquid storage measuring cylinder, and water is prevented from being injected again after detection every time.

Description

TECHNICAL FIELD

[0001] The utility model relates to volume detection device technical field, concretely is a liquefied petroleum gas cylinder volume detection device. BACKGROUND

[0002] Liquefied petroleum gas is a clean energy widely used in household cooking, heating and industrial fuel. To ensure its effective and safe use, liquefied petroleum gas is usually stored in high-pressure cylinders, which can liquefy gas under certain temperature and pressure conditions, thus facilitating transportation and storage. However, in the production process of liquefied petroleum gas cylinders, in order to ensure its quality and safety performance, the volume of the cylinder must be accurately detected to ensure that it can contain the predetermined amount of gas and meet the relevant safety standards. Accurate volume detection not only helps to improve the pass rate of products, but also effectively prevents safety hazards caused by insufficient or excessive volume.

[0003] The patent with publication number CN221976209U discloses a liquefied petroleum gas cylinder volume detection device, which includes a base, a support plate fixedly connected to the left and right upper ends of the base, a connecting plate fixedly connected to the upper ends of the two support plates, a detection mechanism fixedly connected to the middle of the connecting plate, a limit seat fixedly connected to the middle of the upper end of the base, a gas cylinder body movably inserted into the limit seat, a positioning mechanism movably inserted into the lower left end of the left support plate and the lower right end of the right support plate, and a control panel fixedly connected to the upper right end of the right support plate. The liquefied petroleum gas cylinder volume detection device improves the stability of the gas cylinder body through the positioning mechanism, making the volume detection of the gas cylinder body stable.

[0004] The above-mentioned prior art mainly relies on a gas cylinder to move the oil tank up and down, and controls the opening and closing of the insertion pipe through a solenoid valve to inject the liquid in the oil tank into the cylinder. The operator observes the liquid consumption of the oil tank to determine the actual volume of the cylinder. Although this method can achieve volume detection, it has many inconveniences. First of all, after each detection, the oil tank needs to be refilled with solution, increasing the complexity of the operation and the production cycle. Secondly, when the cylinder is filled with liquid, its overall weight increases significantly, making it difficult for the operator to move the cylinder, increasing the safety hazard and labor intensity. In view of this, we propose a liquefied petroleum gas cylinder volume detection device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a liquefied petroleum gas cylinder volume detection device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0007] A liquefied petroleum gas cylinder volume detection device, comprising a base, a circular positioning tray is arranged at the middle of the top of the base, the circular positioning tray is used for positioning and fixing the steel cylinder to be detected to ensure that it is placed in the middle, the circular positioning tray is placed with a steel cylinder, the steel cylinder is a to-be-measured container, the actual volume of the steel cylinder is measured by the water injection method, a U-shaped support is arranged at the top of the base, the U-shaped support constitutes the main frame of the device and is used for supporting a hydraulic cylinder, a frame-shaped plate and a water pump, a hydraulic cylinder is arranged at the middle of the top of the U-shaped support, the hydraulic cylinder is connected with a hydraulic drive system, the hydraulic cylinder drives the frame-shaped plate to rise and fall through a movable rod to control the liquid injection height of a liquid storage cylinder, the movable rod of the hydraulic cylinder penetrates through the top of the U-shaped support and is fixedly connected with the frame-shaped plate, and the frame-shaped plate is used for fixing the liquid storage cylinder;

[0008] A liquid storage cylinder is arranged in the frame-shaped plate, the liquid storage cylinder is used for storing water for detection, the capacity scale of the outer wall of the liquid storage cylinder can directly display the liquid consumption to calculate the volume of the steel cylinder, a liquid outlet pipe is arranged at the bottom end of the liquid storage cylinder, the liquid outlet pipe controls the flow direction of the liquid to the steel cylinder through a solenoid valve to realize automatic liquid injection, a solenoid valve is arranged on the liquid outlet pipe, the solenoid valve is controlled by a controller to open and close to adjust the start and stop of liquid injection, a capacity scale is arranged on the outer wall of the liquid storage cylinder, a reflux pipe and a liquid injection pipe are arranged on the outer wall of the liquid storage cylinder and close to the top, the reflux pipe is connected with the water pump to realize liquid recycling, a cap is threadedly connected with the end of the liquid injection pipe, the liquid injection pipe is used for injecting water into the liquid storage cylinder, and water is consumed during the detection process, and the water in the liquid storage cylinder can be replenished after the water consumption;

[0009] A water pump is arranged at the position close to the bottom of the left side of the inner wall of the U-shaped support, the water pump recycles the liquid in the steel cylinder through a water suction hose and a water delivery hose to reduce repeated water injection operation, a controller is arranged on the left side of the inner wall of the U-shaped support, the water pump, the hydraulic cylinder and the solenoid valve are electrically connected with the controller through wires to facilitate the operation of the staff, a water suction hose is arranged at the input end of the water pump, and a water delivery hose is arranged at the output end of the water pump, the water delivery hose delivers the recycled liquid to the reflux pipe to realize liquid recycling, one end of the water delivery hose away from the water pump is communicated with the reflux pipe, after the volume detection of the steel cylinder is completed, the water suction hose is placed in the steel cylinder, the water pump pumps out the water in the steel cylinder and delivers the water to the liquid storage cylinder through the water delivery hose, which facilitates the staff to take out the steel cylinder and does not need to inject water into the liquid storage cylinder every time.

[0010] Preferably, a slot is arranged at the middle of the top of the base, an insertion block is arranged at the middle of the bottom of the circular positioning tray, the insertion block is inserted into the slot to ensure that the circular positioning tray is quickly positioned and fixed firmly, when different models of steel cylinders are detected, the circular positioning tray that is matched is replaced to ensure that the circular positioning tray can position the bottom of the steel cylinder.

[0011] Preferably, the top of the left and right sides of the frame-shaped plate is provided with a fixed protrusion, the top of the fixed protrusion is provided with a positioning vertical rod, and the top of the positioning vertical rod penetrates through the top of the inner wall of the U-shaped support to the outside, is used for vertical guiding of the frame-shaped plate, and prevents shaking of the frame-shaped plate.

[0012] Preferably, the bottom of the frame-shaped plate is provided with a first avoiding groove for avoiding the liquid outlet pipe, the first avoiding groove provides a moving space for the liquid outlet pipe, avoids deformation of the pipeline under pressure, the left side of the frame-shaped plate is provided with a second avoiding groove for avoiding the return pipe, the second avoiding groove provides an avoiding channel for the return pipe, and smooth connection of the pipeline is ensured.

[0013] Preferably, the left and right sides of the frame-shaped plate are provided with fixing assemblies, the fixing assemblies adjust the position of the V-shaped clamping plate through threaded rods, the liquid storage cylinder is clamped to enhance stability, the fixing assembly comprises a threaded rod which is screwed to the side surface of the frame-shaped plate, the threaded rod moves the V-shaped clamping plate by rotating to realize clamping force adjustment, one end of the threaded rod close to the liquid storage cylinder is rotationally connected with the V-shaped clamping plate, the V-shaped clamping plate is moved leftward and rightward by the threaded rod, the V-shaped clamping plate exerts a pressing force on the liquid storage cylinder, and therefore the stability of the liquid storage cylinder is improved, and the inner side of the V-shaped clamping plate is provided with a rubber pad which is attached to the outer wall of the liquid storage cylinder to provide flexible fixing protection.

[0014] Preferably, the outer side of the V-shaped clamping plate is provided with two positioning horizontal rods which are symmetrically arranged frontward and rearward, one end of the positioning horizontal rod away from the V-shaped clamping plate penetrates through the inner wall of the frame-shaped plate to the outside, the movement direction of the V-shaped clamping plate is limited, and clamping stability is ensured.

[0015] Preferably, the end of the water suction hose away from the water pump is sleeved with a anti-blocking mesh cover, the anti-blocking mesh cover filters impurities in the liquid in the steel cylinder to prevent the pipeline from being blocked.

[0016] Preferably, the U-shaped transverse plate is arranged at the position of the left side of the inner wall of the U-shaped support and close to the middle of the front side edge, the bottom of the inner wall of the U-shaped transverse plate is provided with a plurality of arc-shaped grooves, when the liquid storage cylinder measures the volume by injecting water into the steel cylinder, the water suction end of the water suction hose is arranged in the U-shaped transverse plate, the outer diameter of the anti-blocking mesh cover is greater than the distance between the upper side and the lower side of the inner wall of the U-shaped transverse plate, the water suction hose can be hung at the arc-shaped grooves to prevent the water suction hose from sliding off, and the worker can conveniently take and place the water suction hose.

[0017] Compared with the prior art, the liquid petroleum gas steel cylinder volume detection device has the following beneficial effects:

[0018] 1. The liquid petroleum gas steel cylinder volume detection device, through cooperation of the water suction pump, the water suction hose and the water feeding hose, recycles the liquid in the steel cylinder after detection into the liquid storage cylinder, avoids re-injection of water after each detection, significantly reduces operation complexity and production cycle, and saves water resources.

[0019] 2、The liquefied petroleum gas cylinder volume detection device adopts hydraulic cylinder to drive the lifting of the liquid storage cylinder, and combines the automatic control of the electromagnetic valve to reduce manual intervention; the water pump automatically empties the liquid in the cylinder, avoids the overlarge weight of the cylinder due to full loading of liquid, reduces the risk of carrying and reduces the labor intensity.

[0020] 3、The liquefied petroleum gas cylinder volume detection device is designed through quick positioning of the insertion slot and the insertion block to ensure that the circular positioning tray fixes the cylinder in the middle; the threaded rod of the fixing assembly cooperates with the V-shaped clamping plate and the flexible clamping liquid storage cylinder through the rubber pad to avoid shaking; the avoidance groove design protects the pipeline from being extruded, guarantees smooth liquid flow, and thus improves the accuracy of volume measurement.

[0021] 4、The liquefied petroleum gas cylinder volume detection device prevents the blocking of the mesh cover to filter liquid impurities and prevent pipeline blockage; the U-shaped transverse plate and the arc-shaped groove are designed to be suspended to facilitate the storage and management of the water suction hose, reduce operation confusion, and improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic view of the overall structure of the utility model;

[0023] Figure 2 It is a schematic view of the assembly structure of the base and the circular positioning tray in the utility model;

[0024] Figure 3 It is one of the schematic views of the partial structure of the utility model;

[0025] Figure 4 It is a schematic view of the assembly structure of the frame-shaped plate, the liquid storage cylinder and the fixing assembly in the utility model;

[0026] Figure 5 It is the second schematic view of the partial structure of the utility model;

[0027] Figure 6 It is a schematic view of the fixing assembly structure in the utility model;

[0028] In the drawing: 1, base; 10, insertion slot; 2, circular positioning tray; 20, insertion block; 3, cylinder; 4, U-shaped support; 5, hydraulic cylinder; 6, frame-shaped plate; 60, first avoidance groove; 61, second avoidance groove; 62, fixing protrusion; 63, positioning vertical rod; 7, liquid storage cylinder; 70, liquid outlet pipe; 71, electromagnetic valve; 72, liquid injection pipe; 73, backflow pipe; 74, capacity scale; 8, water pump; 80, water suction hose; 81, water delivery hose; 82, anti-blocking mesh cover; 9, fixing assembly; 90, threaded rod; 91, V-shaped clamping plate; 92, rubber pad; 93, positioning horizontal rod; 11, U-shaped transverse plate; 110, arc-shaped groove. DETAILED DESCRIPTION

[0029] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0030] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0031] Please refer to Figures 1-6 The present application provides a technical solution:

[0032] A liquefied petroleum gas cylinder volume detection device, comprising a base 1, the middle part of the top of the base 1 is provided with a circular positioning tray 2, the circular positioning tray 2 is used for positioning and fixing the steel cylinder 3 to be detected, ensuring that it is placed in the middle, the circular positioning tray 2 is placed with the steel cylinder 3, the steel cylinder 3 is a container to be measured, the actual volume is measured by water injection method, the top of the base 1 is provided with a U-shaped support 4, the U-shaped support 4 constitutes the main frame of the device, which is used for supporting the hydraulic cylinder 5, the frame-shaped plate 6 and the water pump 8, the middle part of the top of the U-shaped support 4 is provided with the hydraulic cylinder 5, which is connected with the hydraulic drive system, the hydraulic cylinder 5 drives the frame-shaped plate 6 to rise and fall through the movable rod, controls the liquid injection height of the liquid storage cylinder 7, the movable rod of the hydraulic cylinder 5 passes through the top of the U-shaped support 4 and is fixedly connected with the frame-shaped plate 6, the frame-shaped plate 6 is used for fixing the liquid storage cylinder 7;

[0033] The frame-shaped plate 6 is provided with a liquid storage cylinder 7, which is used for storing the detection water. The capacity scale 74 on the outer wall of the liquid storage cylinder 7 can directly display the liquid consumption to calculate the volume of the steel cylinder 3. The bottom end of the liquid storage cylinder 7 is provided with a liquid outlet pipe 70. The liquid outlet pipe 70 controls the liquid flow to the steel cylinder 3 through an electromagnetic valve 71, realizes automatic liquid injection, and is provided with the electromagnetic valve 71. The electromagnetic valve 71 is controlled by the controller to open and close, adjusts the start and stop of liquid injection, and the outer wall of the liquid storage cylinder 7 is provided with a capacity scale 74. The outer wall of the liquid storage cylinder 7 is provided with a return pipe 73 and a liquid injection pipe 72 near the top. The return pipe 73 is connected with a water pump 8 to realize the recycling of the liquid. The end of the liquid injection pipe 72 is threadedly connected with a cover. The liquid injection pipe 72 is used for injecting water into the liquid storage cylinder 7. There will be water loss during the detection process. When the water in the liquid storage cylinder 7 is lost, it can be replenished.

[0034] The left side of the inner wall of the U-shaped support 4 is provided with a water pump 8 near the bottom. The water pump 8 recycles the liquid in the steel cylinder 3 through a water suction hose 80 and a water delivery hose 81, reduces the repeated water injection operation, and is provided with a controller on the left side of the inner wall of the U-shaped support 4. The water pump 8, the hydraulic cylinder 5 and the electromagnetic valve 71 are respectively electrically connected with the controller through wires, which is convenient for the staff to operate. The input end of the water pump 8 is provided with the water suction hose 80. The output end of the water pump 8 is provided with the water delivery hose 81. The water delivery hose 81 delivers the recycled liquid to the return pipe 73 to realize the recycling of the liquid. The end of the water delivery hose 81 away from the water pump 8 is communicated with the return pipe 73. When the volume detection of the steel cylinder 3 is completed, the water suction hose 80 is placed in the steel cylinder 3. The water pump 8 pumps out the water in the steel cylinder 3 and delivers it to the liquid storage cylinder 7 through the water delivery hose 81, which is convenient for the staff to take out the steel cylinder 3 and does not need to inject water into the liquid storage cylinder 7 every time.

[0035] In the embodiment, the middle of the top of the base 1 is provided with a slot 10. The middle of the bottom of the circular positioning tray 2 is provided with a plug 20. The plug 20 is inserted into the slot 10 to ensure that the circular positioning tray 2 is quickly positioned and fixed firmly. When different models of steel cylinders 3 are detected, the circular positioning tray 2 that is suitable is replaced to ensure that the circular positioning tray 2 can position the bottom of the steel cylinder 3.

[0036] Specifically, the top of the left and right sides of the frame-shaped plate 6 is provided with a fixed lug 62. The top of the fixed lug 62 is provided with a positioning vertical rod 63. The top end of the positioning vertical rod 63 penetrates through the top of the inner wall of the U-shaped support 4 to the outside, which is used for the vertical guidance of the frame-shaped plate 6 to prevent it from shaking.

[0037] Further, the bottom of the frame-shaped plate 6 is provided with a first avoiding slot 60 for avoiding the liquid outlet pipe 70. The first avoiding slot 60 provides a moving space for the liquid outlet pipe 70 to avoid the deformation of the pipeline under pressure. The left side of the frame-shaped plate 6 is provided with a second avoiding slot 61 for avoiding the return pipe 73. The second avoiding slot 61 provides an avoiding channel for the return pipe 73 to ensure the smooth connection of the pipeline.

[0038] Further, the left and right sides of the frame-shaped plate 6 are provided with fixing assemblies 9, the fixing assemblies 9 adjust the position of V-shaped clamping plates 91 through threaded rods 90, and the liquid storage cylinder 7 is clamped to enhance stability. The fixing assembly 9 comprises a threaded rod 90 which is screwed to the side surface of the frame-shaped plate 6, the threaded rod 90 moves the V-shaped clamping plate 91 by rotating to realize clamping force adjustment, and the end of the threaded rod 90 close to the liquid storage cylinder 7 is rotationally connected with the V-shaped clamping plate 91. The V-shaped clamping plate 91 is moved left and right by the threaded rod 90, so that the V-shaped clamping plate 91 generates extrusion force on the liquid storage cylinder 7, thereby improving the stability of the liquid storage cylinder 7. The inner side of the V-shaped clamping plate 91 is provided with a rubber pad 92 which is attached to the outer wall of the liquid storage cylinder 7 to provide flexible fixing protection.

[0039] Further, the outer side of the V-shaped clamping plate 91 is provided with two positioning cross bars 93 which are symmetrically arranged front and back. The end of the positioning cross bar 93 away from the V-shaped clamping plate 91 penetrates the inner wall of the frame-shaped plate 6 to the outside to limit the movement direction of the V-shaped clamping plate 91, and to ensure stable clamping.

[0040] Further, the end of the water suction hose 80 away from the water pump 8 is sleeved with a anti-blocking mesh cover 82 which filters impurities in the liquid in the cylinder 3 to prevent pipe blockage.

[0041] Further, the inner wall of the U-shaped support 4 is provided with a U-shaped cross plate 11 at the left side and close to the middle of the front side edge. The bottom of the inner wall of the U-shaped cross plate 11 is provided with a plurality of arc-shaped grooves 110. When the liquid storage cylinder 7 measures the volume by injecting water into the cylinder 3, the staff places the water suction end of the water suction hose 80 into the U-shaped cross plate 11. The outer diameter of the anti-blocking mesh cover 82 is greater than the distance between the upper and lower sides of the inner wall of the U-shaped cross plate 11, so that the water suction hose 80 can be hung at the arc-shaped grooves 110 to prevent the water suction hose 80 from falling off, and the staff can easily take and place the water suction hose 80.

[0042] The liquefied petroleum gas cylinder volume detection device of the embodiment is used, first, the steel cylinder 3 to be detected is placed on the circular positioning tray 2 on the top of the base 1, and the steel cylinder 3 is ensured to be positioned accurately; then the hydraulic cylinder 5 on the top of the U-shaped support 4 is started, the frame-shaped plate 6 drives the liquid storage cylinder 7 to descend to a preset height, the liquid outlet pipe 70 at the bottom end of the liquid storage cylinder 7 is aligned with the mouth of the steel cylinder 3; the electromagnetic valve 71 is opened by the controller, the detection liquid in the liquid storage cylinder 7 is injected into the steel cylinder 3 through the liquid outlet pipe 70, the operator directly reads the liquid consumption amount through the capacity scale 74 on the outer wall of the liquid storage cylinder 7, and the actual volume of the steel cylinder 3 is calculated; after the detection is completed, the anti-blocking mesh cover 82 sleeved at the end of the water pumping hose 80 of the water pumping pump 8 is placed into the steel cylinder 3, the water pumping pump 8 is started, and the liquid is pumped back into the liquid storage cylinder 7 through the water conveying hose 81 and the backflow pipe 73, so that the liquid is recycled; the water pumping hose 80 can be hung at the arc-shaped groove 110 of the U-shaped horizontal plate 11 on the left side of the U-shaped support 4 after use, so as to avoid falling; when the steel cylinder 3 of different models is replaced, the plug-in block 20 is pulled out, and the circular positioning tray 2 is replaced; during the process, the fixed assembly 9 of the frame-shaped plate 6 pushes the V-shaped clamping plate 91 to clamp the liquid storage cylinder 7 through the rotating threaded rod 90, the movement direction is limited by the positioning cross bar 93, and the detection stability is ensured.

[0043] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above embodiments, the above embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A liquefied petroleum gas cylinder volume detection device, comprising a base (1), characterized in that: The middle part of the top of the base (1) is provided with a circular positioning tray (2), the steel cylinder (3) is placed on the circular positioning tray (2), the top of the base (1) is provided with a U-shaped support (4), the middle part of the top of the U-shaped support (4) is provided with a hydraulic cylinder (5), the movable rod of the hydraulic cylinder (5) penetrates through the top of the U-shaped support (4) and is fixedly connected with a frame-shaped plate (6), the frame-shaped plate (6) is provided with a liquid storage cylinder (7) inside, the bottom end of the liquid storage cylinder (7) is provided with a liquid outlet pipe (70), the liquid outlet pipe (70) is provided with a solenoid valve (71), the outer wall of the liquid storage cylinder (7) is provided with a capacity scale (74), the outer wall of the liquid storage cylinder (7) and the position close to the top are provided with a reflux pipe (73) and a liquid injection pipe (72), the left side of the inner wall of the U-shaped support (4) and the position close to the bottom are provided with a water suction pump (8), the input end of the water suction pump (8) is provided with a water suction hose (80), the output end of the water suction pump (8) is provided with a water delivery hose (81), one end of the water delivery hose (81) away from the water suction pump (8) is communicated with the reflux pipe (73).

2. The LPG cylinder volume detection device according to claim 1, wherein: The middle part of the top of the base (1) is provided with a circular positioning tray (2), the steel cylinder (3) is placed on the circular positioning tray (2), the top of the base (1) is provided with a U-shaped support (4), the middle part of the top of the U-shaped support (4) is provided with a hydraulic cylinder (5), the movable rod of the hydraulic cylinder (5) penetrates through the top of the U-shaped support (4) and is fixedly connected with a frame-shaped plate (6), the frame-shaped plate (6) is provided with a liquid storage cylinder (7) inside, the bottom end of the liquid storage cylinder (7) is provided with a liquid outlet pipe (70), the liquid outlet pipe (70) is provided with a solenoid valve (71), the outer wall of the liquid storage cylinder (7) is provided with a capacity scale (74), the outer wall of the liquid storage cylinder (7) and the position close to the top are provided with a reflux pipe (73) and a liquid injection pipe (72), the left side of the inner wall of the U-shaped support (4) and the position close to the bottom are provided with a water suction pump (8), the input end of the water suction pump (8) is provided with a water suction hose (80), the output end of the water suction pump (8) is provided with a water delivery hose (81), one end of the water delivery hose (81) away from the water suction pump (8) is communicated with the reflux pipe (73).

3. The LPG cylinder volume detection device according to claim 1, wherein: The top of the left side and the right side of the frame-shaped plate (6) is provided with a fixed protruding block (62), the top of the fixed protruding block (62) is provided with a positioning vertical rod (63), the top end of the positioning vertical rod (63) penetrates through the top of the inner wall of the U-shaped support (4) to the outside.

4. The LPG cylinder volume detection device according to claim 1, wherein: The bottom of the frame-shaped plate (6) is provided with a first avoiding groove (60) for avoiding the liquid outlet pipe (70), the left side of the frame-shaped plate (6) is provided with a second avoiding groove (61) for avoiding the reflux pipe (73).

5. The LPG cylinder volume detection device as claimed in claim 1, wherein: The left side and the right side of the frame-shaped plate (6) are provided with a fixing assembly (9), the fixing assembly (9) comprises a threaded rod (90) which is screwed on the side of the frame-shaped plate (6), one end of the threaded rod (90) close to the liquid storage cylinder (7) is rotatably connected with a V-shaped clamping plate (91), the inner side of the V-shaped clamping plate (91) is provided with a rubber pad (92).

6. The LPG cylinder volume detection device as claimed in claim 5, wherein: The outer side of the V-shaped clamping plate (91) is provided with two positioning cross rods (93) which are symmetrically arranged in front and back, one end of the positioning cross rod (93) away from the V-shaped clamping plate (91) penetrates through the inner wall of the frame-shaped plate (6) to the outside.

7. The LPG cylinder volume detection device as claimed in claim 1, wherein: One end of the water suction hose (80) away from the water suction pump (8) is provided with an anti-blocking mesh cover (82).

8. The LPG cylinder volume detection device as claimed in claim 1, wherein: The left side of the inner wall of the U-shaped support (4) and the position close to the middle part of the front side edge are provided with a U-shaped cross plate (11), a plurality of arc-shaped grooves (110) are formed in the bottom of the inner wall of the U-shaped cross plate (11).

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