Fuel gas charging device

Abstract

A gas charging device is characterized in that a sucking pump, a gas inlet valve and a gas outlet pipe are arranged on a case, a plurality of placing tables for placing gas appliances or gas storage tanks are arranged on the case, the gas inlet valve is connected with a gas source such as a gas station or a large gas tank, and the sucking pump is used for conveying gas from the gas outlet pipe to a gas furnace or charging gas for the small gas tank; a weight detector and a display screen are further installed on the machine box, when the inflation weight reaches a set value or the air tank is increased by the set weight compared with the air tank before inflation, the control system controls the sucking pump to stop, and the safety risk caused by excessive filling is avoided; in addition, the case is provided with an emergency shutdown key, a gas pressure gauge, a temperature sensor, a gas detector, an alarm and the like, so that the use safety of the inflating device is ensured.

Description

Technical Field

[0001] This utility model relates to gas appliances, and in particular to a gas filling device for replenishing gas cylinders. Background Technology

[0002] Portable gas stoves and gas canisters are widely used in various catering and outdoor environments due to their small size and light weight. However, on the other hand, portable gas canisters also have a small capacity, store less gas, and therefore have a shorter burning time.

[0003] Although portable gas canisters are reusable, their filling process is complex and requires a high level of expertise. Most users simply discard the canisters after use and purchase new ones. This not only increases user costs and wastes resources, but also leaves a residue of gas in the discarded canisters, which can easily cause environmental pollution if not properly disposed of. Utility Model Content

[0004] The purpose of this invention is to provide a gas filling device that can conveniently replenish gas cylinders, thereby improving the reusability of gas cylinders and reducing environmental pollution and resource waste.

[0005] The gas filling device of this utility model includes a chassis with several placement platforms for placing gas appliances or gas tanks. A vacuum pump is installed inside the chassis. The chassis is equipped with a gas inlet valve and a gas outlet pipe. The vacuum pump is connected to the inlet valve and the outlet pipe via a gas delivery pipe. The number of outlet pipes is the same as the number of placement platforms, and the end of each outlet pipe is positioned opposite a different placement platform. The chassis is also equipped with a weight detector to detect the weight of items on the placement platforms. The control system receives the detection signal from the weight detector and controls the vacuum pump to operate.

[0006] The gas filling device described in this utility model connects the gas outlet valve on the casing to a gas station or large gas tank as a gas source. The air pump inside the casing can be powered by a battery or AC power. The platform on the casing can be used to place a gas stove. By connecting the gas outlet pipe to the gas stove and starting the air pump, the gas pump draws gas from the gas tank and delivers it to the gas stove, allowing the stove to be used for boiling water or cooking. The platform can also be used to place portable small gas tanks. In this case, a weight detector can detect the weight on the platform. Then, by connecting the gas outlet pipe to the small gas tank, the air pump can fill the small gas tank with gas through the gas outlet pipe. During this process, the weight detector continuously monitors the weight on the platform until the weight reaches a set value or increases by a set amount compared to the original weight. At this point, the control system stops the air pump to prevent overfilling and potential safety risks. This type of gas device can not only power gas appliances, but also fill small gas cylinders. The filling operation is simple and convenient, which greatly reduces the difficulty of filling gas cylinders and makes users more inclined to reuse gas cylinders, thereby increasing the reuse rate of gas cylinders and effectively reducing environmental pollution and resource waste.

[0007] Preferably, the chassis is equipped with a display screen, which is connected to the control system and displays the gas usage of the appliances on the platform.

[0008] Preferably, a display screen is provided on the chassis opposite each placement platform, with each display screen corresponding to one placement platform.

[0009] Preferably, the chassis is equipped with a main switch for controlling the on / off state of the control circuit.

[0010] Preferably, the chassis is equipped with start / stop buttons for controlling the gas output of the corresponding gas outlet pipe at the position opposite to each placement platform.

[0011] Preferably, the chassis is equipped with an emergency shutdown button that disconnects the control circuit.

[0012] Preferably, the chassis is equipped with an alarm and a gas pressure gauge for detecting the gas pressure in the gas supply pipe. The control system is connected to the gas pressure gauge and controls the alarm to operate according to the pressure value.

[0013] Preferably, the chassis is equipped with an alarm and a temperature sensor for detecting ambient temperature. The control system is connected to the temperature sensor and controls the alarm to operate based on its detection signal.

[0014] Preferably, the chassis is equipped with an alarm and a gas detector that detects the concentration of gas in the surrounding environment. The control system is connected to the gas detector and controls the alarm to work based on its detection signal.

[0015] The installation of the aforementioned gas filling device can further improve the convenience and safety of gas filling. Attached Figure Description

[0016] Figure 1 , 2 This is a schematic diagram of a gas filling device.

[0017] Figure 3 This is a schematic diagram of the internal structure of the chassis.

[0018] Figure 4 This is a schematic diagram of another embodiment of the gas charging device. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0020] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0021] If the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0022] This utility model proposes a gas filling device.

[0023] The gas filling device of this embodiment includes a housing 1, on which are provided several placement platforms 11 for placing gas appliances or gas tanks. A vacuum pump 2 is installed inside the housing. The housing is equipped with a gas inlet valve 3 for gas input and a gas outlet pipe 4 for gas output. The vacuum pump is connected to the inlet valve and the outlet pipe through a gas delivery pipe 5. The number of outlet pipes is the same as the number of placement platforms, and the end of each outlet pipe is respectively set opposite to a different placement platform. The housing is also equipped with a weight detector for detecting the weight of items on the placement platforms. The control system receives the detection signal from the weight detector and controls the vacuum pump to work.

[0024] like Figure 1-3 As shown, the gas outlet valve on the casing is connected to a standard household gas cylinder 100 via a gas pipe. The electrical system and appliances inside the casing are powered via a power plug 200. The casing has two placement platforms. A gas stove 300 is placed on the right platform. The corresponding gas outlet pipe is connected to the gas stove, and then the vacuum pump is started. The vacuum pump draws gas from the gas cylinder and delivers it to the gas stove for use. A portable small gas cylinder can be placed on the left platform and connected to its corresponding gas outlet pipe. After the small gas cylinder is placed, a weight detector detects the weight on the platform and sends it to the control system. The vacuum pump, after the device is started, draws gas from the gas cylinder and fills the small gas cylinder. During this process, the weight detector continuously monitors the weight on the platform until the weight reaches a set value, or the weight exceeds the set value compared to the original weight. At this point, the control system stops the vacuum pump to prevent overfilling and potential safety risks.

[0025] The gas filling device described above has a display screen 6 mounted on its casing 1. The display screen is connected to the control system and shows the gas usage of the appliances on the placement platform 11. For example, if a gas stove is placed on the platform, the display screen can show the gas supply speed and pressure; if a small gas cylinder is placed on the platform, the display screen can show the gas supply speed and weight changes. This allows users to understand the usage of the filling device more intuitively and quickly, which also helps to further improve safety. Only one display screen can be installed, with different display areas corresponding to different placement platforms. Figure 1 , 2 As shown, each of the chassis 1 has a display screen 6 located opposite to each placement platform 11. Each display screen corresponds to one placement platform, allowing for more accurate and intuitive observation of the working status of each placement platform.

[0026] The gas filling device has a main switch 7 on the casing 1 to control the operation of the filling device. Additionally, the casing 1 has start / stop buttons 8 on each placement platform 1, opposite to the corresponding gas outlet pipe 4, to control each gas appliance. The casing 1 also has an emergency shutdown button 9 to disconnect the control circuit, ensuring safety. Furthermore, the casing 1 is equipped with a gas pressure gauge 10 to detect the gas pressure in the gas supply pipe 5, a temperature sensor 20 to detect the ambient temperature, a gas detector (not shown) to detect the gas concentration in the surrounding environment, and an alarm 30. The control system connects to the gas pressure gauge, temperature sensor, and gas detector, and controls the alarm based on their detection signals. This ensures that the alarm can promptly issue an alarm signal to remind the user in case of excessive gas pressure, fire, or gas leak, thus guaranteeing safety.

[0027] The gas filling device described above can also be as follows: Figure 4 As shown, the chassis 1 is provided with four placement platforms 11, and correspondingly four displays 6 and four start / stop buttons 8; of course, other numbers of placement platforms can be provided on the chassis to meet different usage requirements.

[0028] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A gas filling device, characterized in that: Includes a chassis (1), which has several placement platforms (11) for placing gas appliances or gas tanks. The chassis is equipped with a vacuum pump (2), a gas inlet valve (3) for gas input and a gas outlet pipe (4) for gas output. The vacuum pump is connected to the inlet valve and the outlet pipe through a gas delivery pipe (5). The number of outlet pipes is the same as the number of placement platforms, and the ends of each outlet pipe are respectively set opposite to different placement platforms. The chassis is also equipped with a weight detector for detecting the weight of items on the placement platforms. The control system receives the detection signal from the weight detector and controls the vacuum pump to work.

2. The gas filling device according to claim 1, characterized in that: The chassis (1) is equipped with a display screen (6), which is connected to the control system and displays the gas usage of the appliances on the placement platform (11).

3. The gas filling device according to claim 2, characterized in that: Display screens (6) are installed on the chassis (1) opposite to each placement platform (11), and each display screen corresponds to one placement platform.

4. The gas filling device according to claim 1, characterized in that: The chassis (1) is equipped with a main switch (7) for controlling the on and off of the circuit.

5. The gas filling device according to claim 1, characterized in that: On the chassis (1), opposite to each placement platform (11), there is a start / stop button (8) to control the gas output of the corresponding gas outlet pipe (4).

6. The gas filling device according to claim 1, characterized in that: The chassis (1) is equipped with an emergency shutdown button (9) that disconnects the control circuit.

7. The gas filling device according to any one of claims 1-6, characterized in that: The chassis (1) is equipped with an alarm (30) and a gas pressure gauge (10) for detecting the gas pressure of the gas pipeline (5). The control system is connected to the gas pressure gauge and controls the alarm to work according to its pressure.

8. The gas filling device according to any one of claims 1-6, characterized in that: The chassis (1) is equipped with an alarm (30) and a temperature sensor (20) for detecting ambient temperature. The control system is connected to the temperature sensor and controls the alarm to work according to its detection signal.

9. The gas filling device according to any one of claims 1-6, characterized in that: The chassis (1) is equipped with an alarm (30) and a gas detector that detects the concentration of gas in the surrounding environment. The control system is connected to the gas detector and controls the alarm to work according to its detection signal.

Images