Manual type steel cylinder refrigerant filling device

Abstract

The utility model discloses a manual steel cylinder refrigerant filling device which comprises a base, a baffle is installed on the top side of the base through bolts, a positioning frame is movably installed on the inner side of the baffle, an extrusion frame is fixedly installed on the bottom side of the positioning frame, and the extrusion frame is movably installed on the inner side of the baffle. A steel cylinder body is installed on the inner side of the positioning frame in a clamped mode, a connecting thread sleeve is arranged on the top side of the steel cylinder body, and a supporting frame is fixedly installed on the top side of the base. In the filling process, refrigerants are conveyed into the steel cylinder body through the filling pipe, and when the refrigerants stored in the steel cylinder body are gradually increased, the overall mass of the steel cylinder body is increased, so that the steel cylinder body moves on the inner sides of the two sets of baffles and is squeezed and weighed through the squeezing plate and the weighing device; and it can be guaranteed that the filling specifications of all the steel cylinder bodies are uniform after filling, weighing data can be conveniently checked through a display screen, and the filling amount can be conveniently adjusted.

Description

Technical Field

[0001] This utility model relates to the field of refrigerant filling technology, specifically a manual refrigerant filling device for steel cylinders. Background Technology

[0002] Steel cylinders are steel cylinders used to store high-pressure oxygen, coal gas, liquefied petroleum gas, or other gases and liquids. Steel cylinders are also frequently used for the storage and use of refrigerants. During the filling process of refrigerants, steel cylinder positioning devices are required to fix them in place.

[0003] Patent CN216887482U discloses a cylinder positioning device for a refrigerant filling machine and the refrigerant filling machine itself. The positioning device of the refrigerant filling machine is based on the characteristic that the distance between the top surface and the center line of the gate remains constant when the gate is closed. A top positioning component is set on the top, and the cylinder is positioned by the cooperation of the top positioning component with the side positioning mechanism and the lifting bracket. The positioning accuracy is high, which can ensure the smooth progress of filling production, thereby improving production efficiency and eliminating safety hazards in filling production.

[0004] During use, when the conveyor rollers transport the cylinders to the support, the cylinders are prone to tilting or tipping over. This not only results in poor stability during transport but also leads to inaccurate positioning during filling. Furthermore, while automatic filling reduces the difficulty of manual operation, its stability and positioning accuracy are poor, and it cannot weigh the cylinders, which can lead to inconsistent cylinder sizes and compromise the overall filling quality. Utility Model Content

[0005] The purpose of this invention is to provide a manual refrigerant filling device for steel cylinders, which features manual filling, facilitates quick positioning and installation, improves filling positioning accuracy, and allows for weighing during the filling process, thereby solving the technical problems of poor filling stability and positioning accuracy of existing equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A manual refrigerant cylinder filling device includes a base, a baffle bolted to the top side of the base, a positioning frame movably mounted on the inner side of the baffle, a compression frame fixedly mounted on the bottom side of the positioning frame, a connecting screw sleeve for the cylinder body being snapped onto the inner side of the positioning frame, a support frame fixedly mounted on the top side of the base, a filling pipe movably mounted on the top side of the support frame, an installation head fixedly mounted at the bottom end of the filling pipe, a fixing frame fixedly mounted on the bottom side of the base, and a weighing device disposed on the inner side of the fixing frame.

[0008] As a further embodiment of this utility model, the baffle has an arc-shaped structure, and there are two baffles in total. The opposite sides of the baffles are respectively provided with sliding grooves, and the inner side of the sliding groove is provided with a slider. A No. 1 spring is fixedly installed between the slider and the sliding groove.

[0009] The above technical solution facilitates the limiting of the positioning frame during filling, thereby improving the stability of the positioning frame during movement. Furthermore, the No. 1 spring facilitates the reset of the positioning frame after the cylinder body is removed, thus enabling continued use in the future.

[0010] As a further embodiment of this utility model, the positioning frame includes a positioning seat, a positioning sleeve, and an electric push rod. The electric push rod is fixedly installed between the positioning seat and the positioning sleeve, and sliders are fixedly installed on the left and right sides of the positioning seat, respectively. An extrusion frame is fixedly installed on the bottom side of the positioning seat.

[0011] When installing the cylinder body, start the electric push rod to move the positioning sleeve upward, then place the cylinder body inside the positioning groove on the top side of the positioning seat, and then start the electric push rod again to move the positioning sleeve downward and lock it into place at the top of the cylinder body. This allows for quick positioning and installation, reducing the difficulty of manual installation and improving the stability and accuracy of the filling process.

[0012] As a further embodiment of this utility model, the extrusion frame includes a fixing rod and an extrusion plate. A total of three fixing rods are provided, and the fixing rods are respectively arranged in a ring at equal intervals on the bottom side of the positioning seat. The extrusion plate is fixedly installed at the bottom end of the fixing rod.

[0013] As the amount of refrigerant stored inside the cylinder gradually increases, the overall mass of the cylinder increases, causing it to move inside the two sets of baffles and be weighed by the pressure plate and the weighing device.

[0014] As a preferred embodiment of this utility model, a threaded sleeve is movably mounted on the bottom side of the mounting head via a bearing. The size and shape of the threaded sleeve match the connecting threaded sleeve. A connecting pipe is fixedly mounted on the bottom side of the mounting head. The size and shape of the connecting pipe match the connecting head at the upper end of the cylinder body. A second spring is fixedly mounted between the mounting head and the support frame.

[0015] When connecting the filling tube, pull the installation head to engage the connecting tube with the connector on the top side of the cylinder body. Then, rotate the threaded sleeve to connect and fix it. During the rotation, it helps to continuously move the connecting tube downward, improving the connection fit and stability, making the installation convenient and quick.

[0016] As a further preferred embodiment of this utility model, a receiving cavity is provided on the top side of the fixing frame, and a weighing device is provided inside the receiving cavity. The size and shape of the receiving cavity are matched with the extrusion plate. A display screen is provided on the front side of the fixing frame, and the display screen and the weighing device are electrically connected.

[0017] During use, the extrusion plate moves and positions itself inside the receiving cavity and presses against the weighing device inside the cavity, which facilitates weighing and helps ensure that the filling specifications of each cylinder are uniform after filling. It also allows for easy viewing of the weighing data on the display screen, making it convenient to adjust the filling volume.

[0018] Compared with the prior art, the manual refrigerant filling device for steel cylinders provided by this utility model has the following advantages:

[0019] 1. This utility model uses an electric push rod to move the positioning sleeve upwards, placing the cylinder body inside the positioning groove on the top side of the positioning seat. Activating the electric push rod again moves the positioning sleeve downwards, engaging and fixing it to the upper end of the cylinder body. This allows for quick positioning and installation, reducing manual installation difficulty and improving stability and accuracy during filling. Then, pulling the installation head engages the connecting tube with the connecting head on the top side of the cylinder body. Finally, rotating the threaded sleeve connects and fixes it to the connecting threaded sleeve. During rotation, the connecting tube continues to move downwards, improving the connection fit and stability, making installation convenient and quick.

[0020] 2. In the filling process, the refrigerant is delivered to the cylinder body through the filling tube. As the amount of refrigerant stored inside the cylinder body gradually increases, the overall mass of the cylinder body increases, causing it to move inside the two sets of baffles. It is then weighed by the extrusion plate and the weighing device, which helps to ensure that the filling specifications of each cylinder body are uniform after filling. Moreover, it is convenient to view the weighing data through the display screen to adjust the filling amount. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the front sectional view of an embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the connection structure between the positioning frame and the extrusion frame in an embodiment of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the filling tube and the mounting head in an embodiment of this utility model.

[0026] Reference numerals: 1. Base; 2. Baffle; 3. Positioning frame; 4. Extrusion frame; 5. Cylinder body; 6. Connecting screw sleeve; 7. Support frame; 8. Filling pipe; 9. Mounting head; 10. Fixing frame; 11. Weighing device; 201. Slide groove; 202. Spring No. 1; 301. Positioning seat; 302. Positioning sleeve; 303. Electric push rod; 401. Fixing rod; 402. Extrusion plate; 901. Connecting pipe; 902. Threaded sleeve; 903. Spring No. 2; 1001. Receiving cavity; 1002. Display screen. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0028] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention 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 the embodiments of the present invention.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention can be understood according to the specific circumstances.

[0030] See Figure 1-4 As shown in the figure, a manual refrigerant cylinder filling device according to an embodiment of the present invention includes a base 1, a baffle 2 bolted to the top side of the base 1, a positioning frame 3 movably mounted on the inner side of the baffle 2, a compression frame 4 fixedly mounted on the bottom side of the positioning frame 3, a cylinder body 5 clamped to the inner side of the positioning frame 3, a connecting screw sleeve 6 provided on the top side of the cylinder body 5, a support frame 7 fixedly mounted on the top side of the base 1, a filling pipe 8 movably mounted on the top side of the support frame 7, an installation head 9 fixedly mounted at the bottom end of the filling pipe 8, a fixing frame 10 fixedly mounted on the bottom side of the base 1, and a weighing device 11 provided on the inner side of the fixing frame 10.

[0031] See Figure 2As shown, the baffle 2 has an arc-shaped structure, and there are two baffles 2 in total. Slide grooves 201 are respectively opened on opposite sides of the baffles 2. A slider is provided inside the slide groove 201, and a spring 202 is fixedly installed between the slider and the slide groove 201. The two baffles 2, slide grooves 201, and sliders facilitate the limiting of the positioning frame 3 during filling, thereby improving the stability of the positioning frame 3 during movement. Furthermore, the spring 202 facilitates the resetting of the positioning frame 3 after the cylinder body 5 is removed, thus facilitating continued use later.

[0032] See Figure 3 As shown, the positioning frame 3 includes a positioning base 301, a positioning sleeve 302, and an electric push rod 303. The electric push rod 303 is fixedly installed between the positioning base 301 and the positioning sleeve 302. Slider blocks are fixedly installed on the left and right sides of the positioning base 301, and a compression frame 4 is fixedly installed on the bottom side of the positioning base 301. By activating the electric push rod 303, the positioning sleeve 302 is moved upward, and then the cylinder body 5 is placed inside the positioning groove on the top side of the positioning base 301. Then, the electric push rod 303 is activated again to move the positioning sleeve 302 downward and engage with the upper end of the cylinder body 5, thereby quickly performing positioning and installation, reducing the difficulty of manual installation and improving the stability and accuracy of the filling process.

[0033] See Figure 3 As shown, the extrusion frame 4 includes fixed rods 401 and extrusion plates 402. There are three fixed rods 401, which are arranged equidistantly in a ring on the bottom side of the positioning seat 301. The extrusion plates 402 are fixedly installed at the bottom ends of the fixed rods 401. As the amount of refrigerant stored inside the cylinder body 5 gradually increases, the overall mass of the cylinder body 5 increases, causing it to move inside the two sets of baffles 2 and be weighed by the extrusion plates 402 against the weighing device 11.

[0034] See Figure 2 , 4 As shown, a threaded sleeve 902 is movably mounted on the bottom side of the mounting head 9 via a bearing. The size and shape of the threaded sleeve 902 match the connecting threaded sleeve 6. A connecting pipe 901 is fixedly mounted on the bottom side of the mounting head 9. The size and shape of the connecting pipe 901 match the connecting head at the upper end of the cylinder body 5. A second spring 903 is fixedly mounted between the mounting head 9 and the support frame 7. Pulling the mounting head 9 engages the connecting pipe 901 with the connecting head on the top side of the cylinder body 5. Rotating the threaded sleeve 902 connects and secures it to the connecting threaded sleeve 6. During rotation, the connecting pipe 901 is continuously moved downwards, improving the connection fit and stability, making installation convenient and quick.

[0035] See Figure 1 , 2As shown, a receiving cavity 1001 is provided on the top side of the fixing frame 10. A weighing device 11 is provided inside the receiving cavity 1001, and the size and shape of the receiving cavity 1001 are matched with the extrusion plate 402. A display screen 1002 is provided on the front side of the fixing frame 10, and the display screen 1002 is electrically connected to the weighing device 11. The extrusion plate 402 is positioned and moved inside the receiving cavity 1001 and is squeezed by the weighing device 11 inside the receiving cavity 1001, which facilitates weighing and helps to ensure that the filling specifications of each steel cylinder body 5 are uniform after filling. It is also convenient to view the weighing data through the display screen 1002 to adjust the filling volume.

[0036] In this embodiment of the invention, the electric push rod 303 is activated to move the positioning sleeve 302 upward, placing the cylinder body 5 inside the positioning groove on the top side of the positioning seat 301. The electric push rod 303 is then activated again to move the positioning sleeve 302 downward and engage with the upper end of the cylinder body 5, thus quickly positioning and installing it. Pulling the installation head 9 engages the connecting pipe 901 with the connecting head on the top side of the cylinder body 5. Rotating the threaded sleeve 902 connects and secures it to the connecting threaded sleeve 6. During rotation, the connecting pipe 901 is continuously moved downward, improving the connection fit and stability. During the filling process, refrigerant is delivered to the cylinder body 5 through the filling pipe 8. As the amount of refrigerant stored inside the cylinder body 5 gradually increases, the overall mass of the cylinder body 5 increases, causing it to move inside the two sets of baffles 2 and be weighed by the extrusion plate 402 and the weighing device 11.

[0037] The above description illustrates the basic principles of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only for illustrating the principles of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A manual refrigerant cylinder filling device, comprising a base (1), characterized in that: A baffle (2) is bolted to the top side of the base (1). A positioning frame (3) is movably installed on the inner side of the baffle (2). A squeezing frame (4) is fixedly installed on the bottom side of the positioning frame (3). A cylinder body (5) is installed on the inner side of the positioning frame (3) by snap-fit. A connecting screw sleeve (6) is provided on the top side of the cylinder body (5). A support frame (7) is fixedly installed on the top side of the base (1). A filling tube (8) is movably installed on the top side of the support frame (7). An installation head (9) is fixedly installed at the bottom end of the filling tube (8). A fixing frame (10) is fixedly installed on the bottom side of the base (1). A weighing device (11) is provided on the inner side of the fixing frame (10).

2. The manual refrigerant filling device for steel cylinders according to claim 1, characterized in that: The baffle (2) has an arc-shaped structure, and there are two baffles (2). The opposite sides of the baffle (2) are respectively provided with a sliding groove (201). A slider is provided on the inner side of the sliding groove (201). A spring (202) is fixedly installed between the slider and the sliding groove (201).

3. The manual refrigerant filling device for steel cylinders according to claim 2, characterized in that: The positioning frame (3) includes a positioning seat (301), a positioning sleeve (302) and an electric push rod (303). The electric push rod (303) is fixedly installed between the positioning seat (301) and the positioning sleeve (302). Slider blocks are fixedly installed on the left and right sides of the positioning seat (301) respectively. An extrusion frame (4) is fixedly installed on the bottom side of the positioning seat (301).

4. The manual refrigerant filling device for steel cylinders according to claim 3, characterized in that: The extrusion frame (4) includes a fixing rod (401) and an extrusion plate (402). There are a total of three fixing rods (401), and the fixing rods (401) are arranged in a ring at equal intervals on the bottom side of the positioning seat (301). The extrusion plate (402) is fixedly installed at the bottom end of the fixing rod (401).

5. A manual refrigerant cylinder filling device according to claim 1, characterized in that: A threaded sleeve (902) is movably mounted on the bottom side of the mounting head (9) via a bearing. The size and shape of the threaded sleeve (902) match the connecting threaded sleeve (6). A connecting pipe (901) is fixedly mounted on the bottom side of the mounting head (9). The size and shape of the connecting pipe (901) match the connecting head at the upper end of the cylinder body (5). A second spring (903) is fixedly mounted between the mounting head (9) and the support frame (7).

6. A manual refrigerant filling device for steel cylinders according to claim 4, characterized in that: The top side of the fixed frame (10) is provided with a receiving cavity (1001), and a weighing device (11) is provided inside the receiving cavity (1001). The size and shape of the receiving cavity (1001) are matched with the extrusion plate (402). A display screen (1002) is provided on the front side of the fixed frame (10), and the display screen (1002) and the weighing device (11) are electrically connected.

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