Weighing lifting device for split charging of liquid gas

Abstract

The utility model relates to the technical field of weighing and lifting devices, and particularly discloses a weighing and lifting device for split charging of liquid gas, which comprises a lifting device arranged in an operation groove reserved on the ground and comprising a lifting platform; the weighing device is used for placing the Dewar tank and weighing the Dewar tank, the weighing device is arranged on the lifting platform, the lifting device is used for adjusting the height of the Dewar tank located on the weighing device, and the weighing device comprises a weighing platform, a plurality of weighing sensors and a plurality of mounting plates; the plurality of mounting plates are arranged at intervals along the length direction of the lifting platform and are connected with the weighing platform through the plurality of weighing sensors. The utility model solves the problems that when the split charging operation is carried out on the liquid gas, the liquid gas often needs to climb to the interface above the Dewar tank by virtue of a ladder, the operation mode is time-consuming and labor-consuming, and the safety accident is easily caused.

Description

Technical Field

[0001] This utility model relates to the technical field of weighing lifting devices, and in particular to a weighing lifting device for dispensing liquid gas. Background Technology

[0002] In the field of liquid gas repackaging, such as hydrogen and helium, large transport vehicles typically transport the liquid gases to designated locations for repackaging. During the repackaging process, due to the height of the Dewar flasks, workers often need to use ladders to climb to the top of the flask to perform the repackaging operations. This method is not only time-consuming and labor-intensive, but also highly prone to safety accidents. Utility Model Content

[0003] To address the problem that when performing liquid gas dispensing operations, it is often necessary to climb a ladder to the interface above the Dewar flask, which is not only time-consuming and laborious but also prone to safety accidents, this utility model provides a weighing and lifting device for liquid gas dispensing.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An embodiment of this utility model provides a weighing and lifting device for dispensing liquid gas, comprising:

[0006] A lifting device, wherein the lifting device is installed in a pre-reserved working groove on the ground, and the lifting device includes a lifting platform;

[0007] A weighing device is provided for placing and weighing a Dewar jar. The weighing device is mounted on a lifting platform. The lifting device is used to adjust the height of the Dewar jar located on the weighing device. The weighing device includes a weighing platform, several weighing sensors, and several mounting plates. The mounting plates are arranged at intervals along the length of the lifting platform. The mounting plates are connected to the weighing platform through the several weighing sensors.

[0008] According to some embodiments of the present invention, a weighing and lifting device for dispensing liquid gas further includes a water pumping device, which includes a water pump for pumping water from a pre-reserved working trough on the ground and a liquid level sensor for controlling the operation of the water pump.

[0009] According to some embodiments of the present invention, two liquid level sensors are provided, wherein the height of one liquid level sensor is greater than the height of the other liquid level sensor.

[0010] According to some embodiments of the present invention, the weighing sensors are disposed on both sides of the mounting plate.

[0011] According to some embodiments of this utility model, protective rods are provided on both sides along the length direction of the weighing platform.

[0012] According to some embodiments of the present invention, the lifting device includes a base, a first bracket, a second bracket, and a lifting device. The first bracket and the second bracket are cross-hinged. The lower end of the first bracket is hinged to the base, and the other end is slidably connected to the lifting platform. The upper end of the second bracket is hinged to the lifting platform, and the other end is slidably connected to the base. The lifting device is used to drive the first bracket and the second bracket to rotate relative to each other to lift the lifting platform.

[0013] According to some embodiments of the present invention, the lifting device includes a first connecting rod, a second connecting rod, and a driving device rotatably connected to the first connecting rod and the second connecting rod respectively. The first connecting rod is disposed on the inner side of the first bracket, and the second connecting rod is disposed on the inner side of the second bracket.

[0014] According to some embodiments of the present invention, there are two first connecting rods, which are respectively disposed on both sides of the hinge axis of the first connecting rod and the second connecting rod.

[0015] According to some embodiments of this utility model, the driving device is a pneumatic rod.

[0016] This invention offers at least the following advantages: By installing a lifting device in a pre-reserved working slot on the ground and adjusting the height of the Dewar jar using a lifting platform, the height of the Dewar jar interface is reduced. During the dispensing process, a weighing sensor can monitor the weight change of the Dewar jar in real time, thereby accurately judging the dispensing progress. Workers no longer need to climb onto the Dewar jar using a ladder, greatly reducing operational difficulty and improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0018] Figure 2 This is a structural schematic diagram from another angle of one embodiment of the present invention;

[0019] Figure 3 for Figure 1 A magnified view of the A mark;

[0020] Figure 4 for Figure 2 A magnified view of the B mark;

[0021] Figure 5 This is a schematic diagram of the lifting device according to one embodiment of the present invention. Detailed Implementation

[0022] This invention provides the following description with reference to the accompanying drawings to aid in a comprehensive understanding of the various embodiments of the invention as defined by the claims and their equivalents. The description includes various specific details to aid understanding, but these details should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the invention.

[0023] In the description of this utility model, the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] It should be understood that when one element (e.g., the first element) is “connected” to another element (e.g., the second element), the element may be directly connected to the other element, or there may be an intervening element (e.g., the third element) between the element and the other element.

[0025] An embodiment of this utility model provides a weighing and lifting device for dispensing liquid gas, such as... Figure 1-5 As shown, it includes:

[0026] The lifting device 100 is installed in a pre-reserved working slot on the ground and includes a lifting platform 110.

[0027] Weighing device 200 is used to place and weigh Dewar jars. Weighing device 200 is set on lifting platform 110. Lifting device 100 is used to adjust the height of Dewar jars located on weighing device 200. Weighing device 200 includes weighing platform 210, several weighing sensors 220 and several mounting plates 230. The mounting plates 230 are arranged at intervals along the length of lifting platform 110. The mounting plates 230 are connected to weighing platform 210 through several weighing sensors 220.

[0028] A lifting device 100 is installed in a pre-reserved working groove on the ground. Its function is to adjust the height of the Dewar jars placed on it by moving the lifting platform 110 up and down, so as to facilitate the loading, unloading, sorting, and handling of the Dewar jars. The pre-reserved working groove is a groove designed and excavated in advance below the ground. A weighing device 200 is used to place the Dewar jars and weigh them. The weighing device 200 is installed on the lifting platform 110 and moves with the lifting platform 110. Several load cells 220 are connected between the weighing platform 210 and the mounting plate 230 to measure the weight of the Dewar jars. The load cells 220 can convert the weight of the Dewar jars into electrical signals for accurate measurement. Several mounting plates 230 are arranged at intervals along the length of the lifting platform 110. The function of the mounting plates 230 is to fix the load cells 220 and connect the load cells 220 to the weighing platform 210 to form a stable weighing system. The lifting device 100 is designed to allow the height of the Dewar jars to be adjusted as needed, facilitating the filling and unloading of the containers. Through the combination of multiple weighing sensors 220 and the mounting plate 230, precise weighing of the Dewar jars can be achieved, ensuring the accuracy of the filling process.

[0029] The working principle of this utility model is as follows:

[0030] The Dewar flask is placed on a weighing platform 210 in a pre-reserved working trough on the ground. The lifting platform 110 of the lifting device 100 moves up and down, lowering the interface on top of the Dewar flask to the ground for easy operation. While the Dewar flask is being dispensed on the weighing platform 210, its weight is measured by a weighing sensor 220, allowing for real-time monitoring of the dispensing progress. Workers can complete the dispensing of liquid gas entirely from the ground.

[0031] In some embodiments, a weighing and lifting device 100 for dispensing liquid gas further includes a water pumping device 300, which includes a water pump 310 for pumping water from a pre-reserved working trough on the ground and a liquid level sensor 320 for controlling the operation of the water pump 310.

[0032] A water pumping device 300 is used to solve the problem of water accumulation that may occur when the device is installed in a pre-reserved working trough on the ground. To facilitate the parking of large transport vehicles, the weighing lifting device 100 often needs to be installed outdoors, where water accumulation may occur during rain, potentially causing damage. The water pumping device 300 can promptly remove water from the pre-reserved working trough, ensuring the normal operation and safety of the device. A water pump 310, driven by a motor, pumps water from the pre-reserved working trough on the ground and discharges it to a designated location. A liquid level sensor 320 is used to detect the liquid level in the pre-reserved working trough and controls the operation of the water pump 310 via a controller. When the liquid level reaches the set upper limit, the sensor triggers the water pump 310 to start and pump out the water; when the liquid level drops to the set lower limit, the sensor stops the water pump 310.

[0033] Furthermore, there are two liquid level sensors 320, one of which has a greater height than the other.

[0034] The high-level sensor 320 is installed at a higher position to detect whether the accumulated water level has reached its upper limit. The low-level sensor 320 is installed at a lower position to detect whether the accumulated water level has dropped to a safe range. In actual operation, the water level may experience brief misjudgments due to fluctuations during pumping. The dual-level sensor design 320 effectively avoids such misjudgments, ensuring the accuracy of water level control. Through the cooperation of the high-level and low-level sensors, the water pump 310 only starts when the water level reaches the high level and stops when the water level drops to the low level, avoiding unnecessary pumping operations and thus achieving energy-saving operation.

[0035] In some embodiments, the load cells 220 are disposed on both sides of the mounting plate 230.

[0036] The load cells 220 are mounted on both sides of the mounting plate 230, allowing for a more even distribution of the load cells on the support structure of the weighing platform 210. Through the mounting plate 230, the load cells 220 can better transfer the load (i.e., the weight of the Dewar jar) from the weighing platform 210 to the sensors. Mounting the load cells 220 on both sides of the mounting plate 230 allows for a more even distribution of the Dewar jar's weight. The distribution of the load cells 220 on both sides provides better support for the weighing platform 210, enhancing the structural stability of the entire weighing device 200.

[0037] In some embodiments, protective bars 120 are provided on both sides along the length of the weighing platform 210.

[0038] The guardrails 120 are installed on both sides of the weighing platform 210 and extend along the length of the weighing platform 210. This arrangement ensures that the guardrails 120 can cover the entire edge area of ​​the weighing platform 210, providing all-round protection for the operator and the Dewar flask.

[0039] In some embodiments, the lifting device 100 includes a base 130, a first support 140, a second support 150, and a lifting device 160. The first support 140 and the second support 150 are cross-hinged. The lower end of the first support 140 is hinged to the base 130, and the other end is slidably connected to the lifting platform 110. The upper end of the second support 150 is hinged to the lifting platform 110, and the other end is slidably connected to the base 130. The lifting device 160 is used to drive the first support 140 and the second support 150 to rotate relative to each other to raise and lower the lifting platform 110.

[0040] The base 130 is fixed in a pre-reserved working groove in the ground, providing stable support for the entire lifting device 100. The first bracket 140 and the second bracket 150 are connected in a cross-joint manner and can rotate relative to each other through hinge points. The lower end of the first bracket 140 is hinged to the base 130, and the other end is slidably connected to the lifting platform 110. The upper end of the second bracket 150 is hinged to the lifting platform 110, and the other end is slidably connected to the base 130. This cross-hinged bracket structure allows the lifting platform 110 to rise and fall smoothly in the vertical direction. The lifting platform 110 is used to carry the weighing device 200 and the Dewar jar and is the moving part of the lifting device 100. The lifting device 160 can be a hydraulic cylinder, an electric actuator, or other power device. The cross-hinged bracket structure allows the entire lifting device 100 to be folded into a smaller volume when not in operation, saving space. This design is particularly suitable for installation in pre-reserved working grooves in the ground or other situations with limited space.

[0041] When the lifting device 160 operates, it pushes the first support 140 and the second support 150 to rotate relative to each other at the hinge point. Due to the cross structure of the first support 140 and the second support 150, this relative rotation causes the lifting platform 110 to move up and down in the vertical direction. For example, when the hydraulic cylinder extends, the first support 140 and the second support 150 unfold, pushing the lifting platform 110 upward; when the hydraulic cylinder retracts, the supports retract, and the lifting platform 110 moves downward.

[0042] Furthermore, the lifting device 160 includes a first connecting rod 170, a second connecting rod 180, and a drive device 190 that is rotatably connected to the first connecting rod 170 and the second connecting rod 180 respectively. The first connecting rod 170 is disposed inside the first bracket 140, and the second connecting rod 180 is disposed inside the second bracket 150.

[0043] Furthermore, there are two first connecting rods 170, which are respectively located on both sides of the hinge axis of the first connecting rod 170 and the second connecting rod 180.

[0044] The dual connecting rod design provides more stable power transmission and structural support.

[0045] In some embodiments, the drive device 190 is a pneumatic rod.

[0046] A pneumatic rod is a device that converts the pressure energy of compressed air into mechanical energy. When compressed air enters one side of the cylinder through the air port, the air pressure pushes the piston to move. The piston's movement is transmitted to the connecting rod via the piston rod. By controlling the direction of airflow, the pneumatic rod can be extended or retracted, thereby driving the lifting device 100 to rise or fall.

[0047] The terms and words used in the foregoing description and claims are not limited to their literal meaning, but are merely used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, those skilled in the art should understand that the foregoing description of various embodiments of the present invention is for illustrative purposes only, and not intended to limit the present invention as defined by the appended claims and their equivalents.

Claims

1. A weighing and lifting device for dispensing liquid gas, characterized in that, include: A lifting device (100) is installed in a pre-reserved working slot on the ground, and the lifting device (100) includes a lifting platform (110); A weighing device (200) is used to place and weigh a Dewar jar. The weighing device (200) is mounted on the lifting platform (110). The lifting device (100) is used to adjust the height of the Dewar jar located on the weighing device (200). The weighing device (200) includes a weighing platform (210), a plurality of weighing sensors (220), and a plurality of mounting plates (230). The plurality of mounting plates (230) are arranged at intervals along the length of the lifting platform (110). The plurality of mounting plates (230) are connected to the weighing platform (210) through the plurality of weighing sensors (220).

2. The weighing and lifting device for dispensing liquid gas according to claim 1, characterized in that, It also includes a water pumping device (300), which includes a water pump (310) for pumping water from a pre-reserved work trough on the ground and a level sensor (320) for controlling the operation of the water pump (310).

3. A weighing and lifting device for dispensing liquid gas according to claim 2, characterized in that, Two liquid level sensors (320) are provided, one of which has a greater height than the other.

4. A weighing and lifting device for dispensing liquid gas according to any one of claims 1 to 3, characterized in that, The weighing sensors (220) are disposed on both sides of the mounting plate (230).

5. A weighing and lifting device for dispensing liquid gas according to any one of claims 1 to 3, characterized in that, Protective bars (120) are provided on both sides along the length of the weighing platform (210).

6. A weighing and lifting device for dispensing liquid gas according to any one of claims 1 to 3, characterized in that, The lifting device (100) includes a base (130), a first bracket (140), a second bracket (150), and a lifting device (160). The first bracket (140) and the second bracket (150) are cross-hinged. The lower end of the first bracket (140) is hinged to the base (130), and the other end is slidably connected to the lifting platform (110). The upper end of the second bracket (150) is hinged to the lifting platform (110), and the other end is slidably connected to the base (130). The lifting device (160) is used to drive the first bracket (140) and the second bracket (150) to rotate relative to each other to lift the lifting platform (110).

7. A weighing and lifting device for dispensing liquid gas according to claim 6, characterized in that, The lifting device (160) includes a first connecting rod (170), a second connecting rod (180), and a driving device (190) rotatably connected to the first connecting rod (170) and the second connecting rod (180) respectively. The first connecting rod (170) is disposed on the inner side of the first bracket (140), and the second connecting rod (180) is disposed on the inner side of the second bracket (150).

8. A weighing and lifting device for dispensing liquid gas according to claim 7, characterized in that, There are two first connecting rods (170), and the two first connecting rods (170) are respectively arranged on both sides of the hinge axis of the first connecting rod (170) and the second connecting rod (180).

9. A weighing and lifting device for dispensing liquid gas according to claim 7, characterized in that, The drive device (190) is a pneumatic rod.

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