Weighing device of hydrogen storage equipment

Abstract

The utility model provides a hydrogen storage equipment weighing device, which relates to the technical field of weighing, and comprises a weighing plate, a base, weighing equipment, a support frame, a guide assembly and a lifting assembly, the two ends of the guide assembly are installed on the base and the supporting frame respectively, and the weighing disc is installed on the guide assembly in a sliding mode. The weighing device is placed on the base and located between the weighing disc and the base. The weighing plate is used for containing hydrogen storage equipment, and the lifting assembly is installed on the supporting frame and used for lifting the hydrogen storage equipment or the weighing plate. The lifting assembly lifts the hydrogen storage equipment or the weighing plate upwards, the weight of the hydrogen storage equipment is counteracted by the lifting assembly, the pressure of the hydrogen storage equipment on the weighing equipment is small, and the requirements for the measuring range and performance of the weighing equipment are lowered; the weight of the hydrogen storage equipment is balanced and counteracted by the lifting assembly, so that the influence on the measurement result is reduced, and the accuracy of the finally measured hydrogen quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing, and in particular to a weighing device for hydrogen storage equipment. Background Art

[0002] Hydrogen storage equipment is used to store hydrogen. When the weighing method is used to measure the mass of hydrogen in the hydrogen storage equipment, since the hydrogen storage equipment itself is heavy, and the weight of the stored hydrogen is compared to the weight of the entire hydrogen storage equipment, the total hydrogen reserve accounts for a very small proportion of the total weight of the equipment. When the total weight of the equipment is 36kg, the total hydrogen storage weight of the equipment is 46g, which is about 0.13%. In addition, the change in hydrogen during testing and use is even smaller. For example, during the experiment, when we require the hydrogen change to be 5% (2.3g), the electronic scale must have feedback, and 2.3g only accounts for 0.0006% of the total weight of the equipment. Under the premise that the electronic scale can weigh the hydrogen storage equipment, in order to measure the weight of the hydrogen and detect the change in hydrogen, an electronic scale with a large range and high precision is required. The performance requirements for the weighing equipment are very high, and the price is expensive, and the cost required is high. Utility Model Content

[0003] The problem to be solved by the utility model is that the existing weighing device adopts a weighing method to measure the quality of hydrogen in the hydrogen storage device, and the performance requirements of the weighing device are very high, the price is expensive, and the required cost is relatively high.

[0004] To solve the above problems, the utility model provides a hydrogen storage equipment weighing device, comprising: a weighing pan, a base, a weighing device, a support frame, a guide assembly and a lifting assembly; the two ends of the guide assembly are respectively installed on the base and the support frame, and the weighing pan is slidably installed on the guide assembly; the weighing device is placed on the base and is located between the weighing pan and the base; the weighing pan is used to hold the hydrogen storage equipment, and the lifting assembly is installed on the support frame for lifting the hydrogen storage equipment or the weighing pan.

[0005] Optionally, the pulling assembly includes: a first support plate, an electromagnet, an iron block, a second support plate and a pull rod; the first support plate and the second support plate are arranged opposite to each other, the first support plate is installed on the support frame, the electromagnet is installed on the side of the first support plate facing the second support plate, the two ends of the pull rod are respectively connected to the equipment support of the hydrogen storage equipment and the second support plate, the iron block is installed on the side of the second support plate facing the first support plate, and the central axis of the iron block coincides with the central axis of the electromagnet.

[0006] Optionally, the lifting assembly includes: a counterweight unit and a traction unit, the traction unit is installed on the support frame, one end of the traction unit is connected to the counterweight unit; the other end of the traction unit is respectively connected to the opposite sides of the weighing pan for lifting the weighing pan.

[0007] Optionally, the traction unit includes a first belt, a second belt, a first pulley, a second pulley and a third pulley, the first pulley and the second pulley are rotatably mounted on one end frame of the support frame, and the third pulley is rotatably mounted on the other end frame of the support frame, one end of the first belt is connected to the counterweight unit, the other end of the first belt passes around the second pulley and is connected to the weighing disc, one end of the second belt is connected to the counterweight unit, the other end of the second belt passes around the first pulley and the third pulley in sequence and is connected to the weighing disc, the other end of the first belt and the other end of the second belt are respectively connected to opposite sides of the weighing disc for lifting the weighing disc.

[0008] Optionally, the two second pulleys are symmetrically arranged on both sides of the first pulley, and the two second belts are symmetrically arranged on both sides of the first belt.

[0009] Optionally, the traction unit further includes a second connecting seat, which is mounted on the first belt and located between one end of the first belt and the second pulley; one end of the second belt is mounted on the second connecting seat.

[0010] Optionally, the traction unit includes a third belt and a fourth pulley, and the two traction units are symmetrically arranged on both sides of the hydrogen storage cylinder in the hydrogen storage device, each traction unit is connected to a corresponding counterweight unit, and the fourth pulley is installed on the support frame. One end of the third belt is connected to the corresponding counterweight unit, and the other end of the third belt passes around the fourth pulley and is connected to the weighing pan; the other ends of the third belts of the two traction units are respectively connected to the opposite sides of the weighing pan for lifting the weighing pan.

[0011] Optionally, the counterweight unit includes: a tray, a traction column and a first connecting seat; the tray is installed on the end of the traction column close to the base, the end of the traction column away from the base is connected to the first connecting seat, the first connecting seat is connected to the traction unit, and a counterweight is placed on the tray.

[0012] Optionally, the counterweight unit further includes a guide frame, the guide frame is mounted on the base, and the traction column passes through the guide frame.

[0013] Optionally, the guide assembly includes: a column, a guide sleeve, a fixed cylinder and a fixed ring; the fixed cylinder is installed on the base, one end of the column is installed on the fixed cylinder, the other end of the column passes through the weighing pan and the support frame in sequence, and the fixed ring is installed on the other end of the column.

[0014] The beneficial effects of the hydrogen storage equipment weighing device of the utility model are:

[0015] The weighing device is placed on the base, and the weighing pan is located above the weighing device. The hydrogen storage device and the equipment support of the hydrogen storage device are placed on the weighing pan. Under the action of gravity, the weighing pan contacts the weighing device. Before weighing, the hydrogen storage device or the weighing pan is pulled upward by a pulling component to give the hydrogen storage device or the weighing pan an upward pulling force, and the magnitude of the upward pulling force is adjusted until the upward pulling force is equal to the gravity of the hydrogen storage device that is not filled with hydrogen. When weighing the hydrogen storage device that is not filled with hydrogen, the reading of the weighing device is zero or slightly greater than zero, and the weight of the hydrogen storage device is offset by the pulling component. The pressure of the hydrogen storage device on the weighing device is relatively small. At this time, the range and performance requirements of the weighing device are reduced, and a small-range and low-precision weighing device 5 can be used to measure the mass of the loaded hydrogen, thereby reducing costs. After the hydrogen storage device is loaded with hydrogen, the reading of the weighing device is the mass of the hydrogen. At this time, the mass of the hydrogen can be directly measured, and the weight of the hydrogen storage device is balanced and offset by the pulling component, which reduces the impact on the measurement result, and the accuracy of the final measured hydrogen mass is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A front view of a magnetic weighing device for hydrogen storage equipment provided by an embodiment of the utility model;

[0017] Figure 2 A left side view of a magnetic weighing device for hydrogen storage equipment provided by an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional structure of a magnetic weighing device for hydrogen storage equipment provided in an embodiment of the utility model;

[0019] Figure 4 This is a left side view of a single-side counterweight weighing device for hydrogen storage equipment provided by an embodiment of the present utility model;

[0020] Figure 5 A schematic structural diagram of a single-side counterweight weighing device for hydrogen storage equipment provided by an embodiment of the present utility model;

[0021] Figure 6 A schematic diagram of the three-dimensional structure of a single-side counterweight weighing device for hydrogen storage equipment provided by an embodiment of the utility model;

[0022] Figure 7A schematic structural diagram of a double-sided counterweight weighing device for hydrogen storage equipment provided by an embodiment of the present utility model;

[0023] Figure 8 A schematic diagram of the three-dimensional structure of a double-sided counterweight weighing device for hydrogen storage equipment provided in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Hydrogen storage cylinder; 2. Equipment support; 3. Weighing pan; 4. Base; 5. Weighing equipment; 6. Support frame; 7. Guide assembly; 71. Column; 72. Guide sleeve; 73. Fixed cylinder; 74. Fixed ring; 8. Counterweight; 20. First support plate; 21. Electromagnet; 22. Iron block; 23. Second support plate; 24. Pull rod; 25. Connector; 30. Guide frame; 31. Tray; 32. Traction column; 33. First connecting seat; 34. First belt; 35. Second connecting seat; 36. Second belt; 37. First pulley; 38. Second pulley; 39. First support; 40. Second support; 41. Third pulley; 42. Third connecting seat; 50. Fourth connecting seat; 51. Third belt; 52. Third support; 53. Fourth pulley. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0027] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] It should be noted that the modifications of "one" and "multiple" mentioned in the present invention are illustrative rather than restrictive. Those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0029] In response to the problems existing in the above-mentioned related technologies, this embodiment provides a weighing device for hydrogen storage equipment.

[0030] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a hydrogen storage equipment weighing device, comprising: a weighing pan 3, a base 4, a weighing device 5, a support frame 6, a guide assembly 7 and a lifting assembly; the two ends of the guide assembly 7 are respectively installed on the base 4 and the support frame 6, and the weighing pan 3 is slidably installed on the guide assembly 7; the weighing device 5 is placed on the base 4 and is located between the weighing pan 3 and the base 4; the weighing pan 3 is used to hold the hydrogen storage equipment, and the lifting assembly is installed on the support frame 6 for lifting the hydrogen storage equipment or the weighing pan 3.

[0031] Specifically, if Figure 1 and Figure 3 As shown, four guide assemblies 7 are installed at the four corners of the base 4, the weighing pan 3 is slidably installed on the four guide assemblies 7, and the top ends of the four guide assemblies 7 are installed on the support frame 6. The guide assembly 7 can include a slider and a guide rail. The slider is installed on the weighing pan 3, and the slider is slidably installed on the guide rail. The two ends of the guide rail are respectively installed on the base 4 and the support frame 6. Figure 1 The guide assembly 7 may further include a column 71, a guide sleeve 72, a fixed cylinder 73, and a fixed ring 74; the fixed cylinder 73 is mounted on the base 4, one end of the column 71 is mounted on the fixed cylinder 73, the other end of the column 71 passes through the weighing pan 3 and the support frame 6 in sequence, and the fixed ring 74 is mounted on the other end of the column 71. The guide assembly 7 is used to guide the weighing pan 3 to slide vertically.

[0032] In this embodiment, the weighing device 5 is placed on the base 4, the weighing pan 3 is located above the weighing device 5, the hydrogen storage device includes a hydrogen storage cylinder 1 and an equipment support 2, the hydrogen storage device is placed on the weighing pan 3, under the action of gravity, the weighing pan 3 is in contact with the weighing device 5, before weighing, the hydrogen storage device or the weighing pan 3 is pulled upward by a pulling component, and an upward pulling force is applied to the hydrogen storage device or the weighing pan 3, and the magnitude of the upward pulling force is adjusted to offset part of the weight of the hydrogen storage device and / or the weighing pan 3, for example, the upward pulling force applied by the pulling component to the weighing pan 3 is equal to the gravity of the hydrogen storage device not filled with hydrogen and the weighing pan 3, and when weighing the hydrogen storage device not filled with hydrogen, the hydrogen storage device or the weighing pan 3 is pulled upward. When preparing, make the reading of the weighing device 5 zero or slightly greater than zero, or, you can also use the peeling function of the weighing device 5 to set the reading of the weighing device 5 to zero, so that the weight of the hydrogen storage device and the weighing pan 3 is offset by the pulling component. After taking the pulling component, read the value of the weighing device 5, the proportion of the hydrogen storage amount to the read value increases greatly, and the pressure of the hydrogen storage device and the weighing pan 3 on the weighing device 5 is small. At this time, the range and performance requirements of the weighing device 5 are reduced. For example, the pulling component uses a counterweight to balance the weight of the hydrogen storage device. After the final balance, the pressure of the hydrogen storage device on the weighing device 5 is small. Assuming that the pressure of the hydrogen storage device on the weighing device is 0 .05N or 0.01N, at this time the weight of the hydrogen storage device monitored by the weighing equipment is 5g or 1g, you can choose an electronic scale with a range of 50g, the accuracy of the electronic scale is 0.1g (under this small range, the accuracy can also reach 0.01g or less), at this time the electronic scale can withstand the pressure of the hydrogen storage device, you can use the tare function of the electronic scale to eliminate the weight of the hydrogen storage device that is not balanced in the initial stage, thereafter the value displayed on the electronic scale is the weight of the hydrogen, and the detection accuracy reaches 0.1g, when the hydrogen change reaches 5% of the initial total amount of hydrogen (46g), it can be recognized by the electronic scale to achieve the purpose of accurate monitoring, use a small range and low precision The weighing device 5 can measure the mass of the loaded hydrogen, reducing costs. Even if the change in the hydrogen storage amount during the measurement process is very small, it can be keenly identified by the small-scale weighing device 5, thereby improving the accuracy and sensitivity of monitoring. Specifically, after the hydrogen storage device is loaded with hydrogen, the upward pulling force exerted by the pulling component on the hydrogen storage device or the weighing pan 3 remains constant, and the pulling force offsets the gravity of the hydrogen storage device and the weighing pan 3. At this time, the reading of the weighing device 5 is the mass of the hydrogen. At this time, the mass of the hydrogen can be directly measured. The weight of the hydrogen storage device is balanced and offset by the pulling component, which reduces the impact on the measurement result, and the accuracy of the final measured hydrogen mass is improved.

[0033] Alternatively, as Figure 1 and Figure 3As shown, the pulling assembly includes: a first support plate 20, an electromagnet 21, an iron block 22, a second support plate 23 and a pull rod 24; the first support plate 20 and the second support plate 23 are arranged opposite to each other, the first support plate 20 is installed on the support frame 6, the electromagnet 21 is installed on the side of the first support plate 20 facing the second support plate, the two ends of the pull rod 24 are respectively connected to the equipment support 2 of the hydrogen storage equipment and the second support plate 23, the iron block 22 is installed on the side of the second support plate 23 facing the first support plate, and the central axis of the iron block 22 coincides with the central axis of the electromagnet 21.

[0034] Specifically, the connecting member 25 is installed on the equipment support 2, and the connecting member 25 is installed with the pull rod 24. At least two pull rods 24 and two connecting members 25 are set between the second support plate 23 and the equipment support 2. When two pull rods 24 and two connecting members 25 are set, the two connecting members 25 are set at the diagonal corners of the equipment support 2, and the two pull rods 24 are respectively installed on the two connecting members 25. It can also be as follows Figure 1 and Figure 2 As shown, four pull rods 24 and four connecting members 25 are provided. The four pull rods 24 and the connecting members 25 are respectively provided at the four corners of the equipment support 2, so as to keep the pulling force on the hydrogen storage equipment in a balanced state.

[0035] In this embodiment, electromagnet 21 generates a magnetic force when energized, attracting iron block 22. Adjusting the current flowing through electromagnet 21 changes the attraction of electromagnet 21 on iron block 22. When iron block 22 is pulled upward by the magnetic force, it partially offsets the mass of the hydrogen storage device. By adjusting the operating current of electromagnet 21, the suction force generated by electromagnet 21 is equal to or approximately equal to the total mass of the unloaded hydrogen storage cylinder 1, the device support 2, iron block 22, second support plate 23, pull rod 24, and connector 25, thereby causing the reading of weighing device 5 to be smaller or equal to zero. When hydrogen is stored in hydrogen storage cylinder 1, the reading of weighing device 5 is the mass of hydrogen in hydrogen storage cylinder 1.

[0036] Alternatively, as Figure 4-Figure 6 As shown, the lifting assembly includes: a counterweight unit and a traction unit. The traction unit is installed on the support frame 6, and one end of the traction unit is connected to the counterweight unit; the other end of the traction unit is respectively connected to the opposite sides of the weighing pan 3, for lifting the weighing pan 3.

[0037] Specifically, the counterweight unit can be a weight unit, a sandbag unit, or a discus unit. The counterweight unit is connected to a traction unit, and the traction unit converts the weight of the counterweight unit into an upward traction force on the weighing disk 3, thereby offsetting the weight of the hydrogen storage device, weakening or eliminating the impact of the hydrogen storage device on the measurement results, and improving measurement accuracy. The traction unit can be a traction rope and pulley combination unit, a belt and pulley combination unit, a chain and sprocket combination unit, etc. Any component that can convert the weight of the counterweight unit into an upward traction force on the weighing disk 3 can serve as a traction unit.

[0038] Alternatively, as Figure 4-Figure 6 As shown, the traction unit includes a first belt 34, a second belt 36, a first pulley 37, a second pulley 38 and a third pulley 41. The first pulley 37 and the second pulley 38 are rotatably mounted on one end frame of the support frame 6, and the third pulley 41 is rotatably mounted on the other end frame of the support frame 6. One end of the first belt 34 is connected to the counterweight unit, and the other end of the first belt 34 passes around the second pulley 38 and is connected to the weighing disc 3. One end of the second belt 36 is connected to the counterweight unit, and the other end of the second belt 36 passes around the first pulley 37 and the third pulley 41 in turn and is connected to the weighing disc 3. The other end of the first belt 34 and the other end of the second belt 36 are respectively connected to the opposite sides of the weighing disc 3 for lifting the weighing disc 3.

[0039] Specifically, if Figure 4-Figure 6 As shown, the traction unit further includes a first support 39 and a second support 40; the first support 39 is mounted on the support frame 6, the second pulley 38 is rotatably mounted on the first support 39, the first pulley 37 is rotatably mounted on the first support 39, the second support 40 is mounted on the support frame 6, and the third pulley 41 is rotatably mounted on the second support 40. In addition, as Figure 4 As shown, the traction unit also includes a second connecting seat 35, which is installed on the first belt 34 and is located between one end of the first belt 34 and the second pulley 38; one end of the second belt 36 is installed on the second connecting seat 35.

[0040] In this embodiment, if Figure 4 As shown, one end of the first belt 34 is connected to the counterweight unit, and then the other end of the first belt 34 is connected to one side of the weighing pan 3 through the steering of the second pulley 38. The gravity of the counterweight unit is transmitted and redirected by the first belt 34 and converted into a pulling force on the weighing pan 3, pulling one side of the weighing pan 3 upward. Figure 6As shown, the other end of the first belt 34 is connected to the weighing pan 3 through the third connecting seat 42. Figure 5 and Figure 6 As shown, one end of the second belt 36 is connected to the first belt 34 through the second connecting seat 35, and the connection position is between the counterweight unit and the second pulley 38, which is equivalent to one end of the second belt 36 being indirectly connected to the counterweight unit, and the other end of the second belt 36 is connected to the other side of the weighing disc 3 after two turns of the first pulley 37 and the third pulley 41, thereby converting the gravity of the counterweight unit into a pulling force for the weighing disc 3, and pulling the other side of the weighing disc 3 upward. It should be noted that the first traction unit and the second traction unit are respectively connected to the two opposite sides of the weighing disc 3, which can apply a balanced traction force to the weighing disc 3 to prevent the weighing disc 3 from tilting due to uneven force. In addition, two second belts 36 can be set, and the two second pulleys 38 are symmetrically arranged on both sides of the first pulley 37, and the two second belts 36 are symmetrically arranged on both sides of the first belt 34. The second belt 36 is assembled corresponding to the first pulley 37, so that the two sides of the first belt 34 are evenly stressed, and the weighing disc 3 is prevented from tilting. In addition, as Figure 5 As shown, the other end of the second belt 36 is connected to the weighing pan 3 through the third connecting seat 42.

[0041] Alternatively, as Figure 7 and Figure 8 As shown, the traction unit includes a third belt 51 and a fourth pulley 53, and the two traction units are symmetrically arranged on both sides of the hydrogen storage cylinder 1 in the hydrogen storage device, each of the traction units is connected to a corresponding counterweight unit, and the fourth pulley 53 is installed on the support frame 6. One end of the third belt 51 is connected to the corresponding counterweight unit, and the other end of the third belt 51 passes around the fourth pulley 53 and is connected to the weighing pan 3; the other ends of the third belts 51 of the two traction units are respectively connected to the opposite sides of the weighing pan 3, for lifting the weighing pan 3.

[0042] Specifically, if Figure 8 As shown, a set of pulling units are set on both sides of the hydrogen storage cylinder 1. One end of each pulling unit is connected to the corresponding counterweight unit, and the other end is connected to the weighing plate 3 by bypassing the support frame 6. The pulling unit converts the gravity of the counterweight unit into a pulling force on the weighing plate 3, pulling the weighing plate 3 upward, which can also achieve the effect of offsetting the weight of the hydrogen storage device and improving the accuracy of the test results. Figure 7 and Figure 8As shown, the third traction unit also includes: a fourth connecting seat 50 and a third support 52; the fourth connecting seat 50 is installed on the weighing plate 3, the third support 52 is installed on the support frame 6, the fourth pulley 53 is rotatably installed on the third support 52, one end of the third belt 51 is connected to the counterweight unit, and the other end of the third belt 51 is connected to the fourth connecting seat 50.

[0043] In this embodiment, if Figure 8 As shown, one end of the third belt 51 is connected to the counterweight unit, and the other end is connected to the weighing pan 3 through the rotation of the fourth pulley 53. The gravity of the counterweight unit is transmitted through the third belt 51 and converted into an upward pulling force on the weighing pan 3. Placing the same counterweight in the two counterweight units ensures that the pulling force on the weighing pan 3 by the two traction units is equal, keeping the weighing pan 3 level.

[0044] Alternatively, as Figure 4 and Figure 8 As shown, the counterweight unit includes a tray 31, a traction column 32, and a first connecting seat 33. The tray 31 is mounted on the end of the traction column 32 close to the base 4. The end of the traction column 32 away from the base 4 is connected to the first connecting seat 33, and the first connecting seat 33 is connected to the traction unit. The tray 31 is placed with a counterweight 8. The counterweight unit also includes a guide frame 30, which is mounted on the base 4. The traction column 32 passes through the guide frame 30.

[0045] In this embodiment, if Figure 4 or Figure 8 As shown, one end of the traction column 32 is connected to the corresponding belt through the first connecting seat 33, and the other end of the traction column 32 is fixedly connected to the tray 31. The counterweight 8 can be placed on the tray 31, thereby increasing the pulling force of the counterweight unit on the belt. The guide frame 30 limits the position of the traction column 32, reduces the shaking of the traction column 32, and allows the traction column 32 to maintain stable up and down movement. Since it is necessary to keep the weighing pan 3 from leaving the surface of the weighing device 5, only the pressure of the hydrogen storage device and the weighing pan 3 on the weighing device 5 needs to be eliminated. Therefore, the tray 31 does not need a large up and down movement distance, as long as it can ensure that the tray 31 is suspended. When the model of the hydrogen storage device or the mass of the solid material inside changes, the weight of the different hydrogen storage devices can be eliminated by changing the weight of the counterweight 8, so that the weighing device has a wide range of applications and is flexible and convenient to operate.

[0046] Although the present invention is disclosed as above, it is not limited thereto. Any person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope defined by the claims.

Claims

1. A hydrogen storage equipment weighing device, characterized in that: include: A weighing pan (3), a base (4), a weighing device (5), a support frame (6), a guide assembly (7) and a lifting assembly; the two ends of the guide assembly (7) are respectively mounted on the base (4) and the support frame (6), and the weighing pan (3) is slidably mounted on the guide assembly (7); the weighing device (5) is placed on the base (4) and is located between the weighing pan (3) and the base (4); the weighing pan (3) is used to hold a hydrogen storage device, and the lifting assembly is mounted on the support frame (6) and is used to lift the hydrogen storage device or the weighing pan (3).

2. The hydrogen storage equipment weighing device according to claim 1, characterized in that: The lifting assembly includes: a first support plate (20), an electromagnet (21), an iron block (22), a second support plate (23) and a pull rod (24); the first support plate (20) and the second support plate (23) are arranged opposite to each other, the first support plate (20) is installed on the support frame (6), the electromagnet (21) is installed on the side of the first support plate (20) facing the second support plate, the two ends of the pull rod (24) are respectively connected to the equipment support (2) of the hydrogen storage equipment and the second support plate (23), the iron block (22) is installed on the side of the second support plate (23) facing the first support plate, and the central axis of the iron block (22) coincides with the central axis of the electromagnet (21).

3. The hydrogen storage equipment weighing device according to claim 1, characterized in that: The lifting assembly comprises: a counterweight unit and a traction unit, wherein the traction unit is mounted on the support frame (6), one end of the traction unit is connected to the counterweight unit; the other end of the traction unit is connected to the weighing pan (3) for lifting the weighing pan (3).

4. The hydrogen storage equipment weighing device according to claim 3, characterized in that: The traction unit comprises a first belt (34), a second belt (36), a first pulley (37), a second pulley (38) and a third pulley (41), wherein the first pulley (37) and the second pulley (38) are rotatably mounted on one end frame of the support frame (6), and the third pulley (41) is rotatably mounted on the other end frame of the support frame (6). One end of the first belt (34) is connected to the counterweight unit, and the other end of the first belt (34) passes around the second pulley (38) and is connected to the weighing disc (3). One end of the second belt (36) is connected to the counterweight unit, and the other end of the second belt (36) passes around the first pulley (37) and the third pulley (41) in sequence and is connected to the weighing disc (3). The other end of the first belt (34) and the other end of the second belt (36) are respectively connected to opposite sides of the weighing disc (3) for lifting the weighing disc (3).

5. The hydrogen storage equipment weighing device according to claim 4, characterized in that: The two second pulleys (38) are symmetrically arranged on both sides of the first pulley (37).

6. The hydrogen storage equipment weighing device according to claim 4, characterized in that: The traction unit further comprises a second connecting seat (35), which is mounted on the first belt (34) and located between one end of the first belt (34) and the second pulley (38); one end of the second belt (36) is mounted on the second connecting seat (35).

7. The hydrogen storage equipment weighing device according to claim 3, characterized in that: The traction unit comprises a third belt (51) and a fourth pulley (53), the two traction units are symmetrically arranged on both sides of the hydrogen storage cylinder (1) in the hydrogen storage device, each traction unit is connected to a corresponding counterweight unit, the fourth pulley (53) is installed on the support frame (6), one end of the third belt (51) is connected to the corresponding counterweight unit, and the other end of the third belt (51) passes around the fourth pulley (53) and is connected to the weighing pan (3); the other ends of the third belts (51) of the two traction units are respectively connected to the opposite sides of the weighing pan (3) for lifting the weighing pan (3).

8. The hydrogen storage equipment weighing device according to claim 3, characterized in that: The counterweight unit comprises: a tray (31), a traction column (32) and a first connecting seat (33); the tray (31) is mounted on one end of the traction column (32) close to the base (4); the end of the traction column (32) away from the base (4) is connected to the first connecting seat (33); the first connecting seat (33) is connected to the traction unit; and a counterweight (8) is placed on the tray (31).

9. The hydrogen storage equipment weighing device according to claim 8, characterized in that: The counterweight unit further comprises a guide frame (30), wherein the guide frame (30) is mounted on the base (4), and the traction column (32) passes through the guide frame (30).

10. The hydrogen storage equipment weighing device according to claim 1, characterized in that: The guide assembly (7) comprises: a column (71), a guide sleeve (72), a fixed cylinder (73) and a fixed ring (74); the fixed cylinder (73) is mounted on the base (4), one end of the column (71) is mounted on the fixed cylinder (73), the other end of the column (71) passes through the weighing pan (3) and the support frame (6) in sequence, and the fixed ring (74) is mounted on the other end of the column (71).

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