Mixed gas proportioning cabinet

Abstract

The utility model discloses a mixed gas proportioning cabinet, which relates to the technical field of gas proportioning cabinets and comprises a proportioning cabinet body, two groups of connecting pipes are symmetrically connected to two sides of the proportioning cabinet body, arc-shaped frames are symmetrically arranged above and below the connecting pipes, and accommodating boxes are symmetrically connected to two sides of the arc-shaped frames. Sliding grooves are symmetrically formed in the inner walls of the two sides of the arc-shaped frame, limiting sliding blocks are movably connected into the sliding grooves, protection plates are connected between the limiting sliding blocks, and the upper protection plate and the lower protection plate are spliced together with the sealing frame through compensation springs which are symmetrically arranged to form a closed hollow cylinder; the closed hollow cylinder covers the outer side of the connecting end of the connecting pipe and the output pipe, and a worker can place a drying agent in the closed hollow cylinder around the connecting end of the connecting pipe and the gas conveying pipe, so that good anti-corrosion protection can be formed at the connecting end, the air tightness of the connecting end is ensured, and gas leakage is avoided; and in the subsequent use process, the pipeline is also convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of gas proportioning cabinets, in particular to a mixed gas proportioning cabinet. Background Art

[0002] Gas proportioning cabinet, also known as gas proportioner, gas mixing cabinet, mixed gas proportioning cabinet, is a large-flow two-element gas mixing device designed for gas shielded welding. It is mainly used in conjunction with centralized gas supply bus and can be widely used in various gas shielded welding occasions such as railways, ships, chemical industry, and machinery manufacturing.

[0003] The Chinese patent authorization announcement number is CN215389050U, and the name is a mixed gas proportioning cabinet with good stability, including a cabinet body, a stabilizing mechanism fixedly installed at the bottom of the cabinet body; the stabilizing mechanism includes a base, an electric slide, a support seat, a hydraulic rod and a pulley, the bottom of the cabinet body is fixedly installed with a base, the inside of the base is fixedly installed with an electric slide, the bottom of the electric slide is slidably connected to the support seat, the inside of the base is fixedly installed with a hydraulic rod, the bottom of the hydraulic rod is rotatably connected to the pulley, the bottom of the base is provided with a movable groove corresponding to the electric slide and the support seat, the electric slide is located in the movable groove, the top of the support seat is slidably connected to the bottom of the electric slide, the pulley can be pushed by the hydraulic rod to support the cabinet body, the action of the electric slide drives the support seat to move sideways to change the support direction, and the hydraulic rod retracts to make the bottom of the support seat support the ground, so as to achieve the effect of changing the stability according to the installation position and making the stability good;

[0004] The shortcomings of the above-mentioned existing technical solution are: although the above-mentioned solution ensures the stability of the counter during installation, when the gas matching cabinet is connected to the gas pipe, if its working environment is relatively humid, the gas matching cabinet is prone to rust at the connection end between the gas matching cabinet and the gas pipe, causing gas leakage, and if the gas pipe needs to be inspected and replaced during subsequent use, it is difficult to disassemble, causing certain inconveniences to the staff. Utility Model Content

[0005] The purpose of the utility model is to provide a mixed gas proportioning cabinet to solve the technical problems mentioned in the above background technology.

[0006] The technical problem to be solved by the utility model can be achieved through the following technical solutions:

[0007] A mixed gas proportioning cabinet comprises a proportioning cabinet body, two groups of connecting pipes are symmetrically connected to the two sides of the proportioning cabinet body, arc frames are symmetrically arranged on the upper and lower parts of the connecting pipes, the two sides of the arc frames are symmetrically connected to the accommodating boxes, the inner walls of the two sides of the arc frames are symmetrically provided with sliding grooves, the internal movability of the sliding grooves is connected with limit sliders, the limit sliders are connected with protection plates, the two ends of the protection plates are connected with sealing frames, and the interior of the accommodating box is provided with compensation springs.

[0008] As a further solution of the utility model: a control switch, an adjusting knob, a display screen and a digital indicator are arranged on the front of the proportioning cabinet body.

[0009] As a further solution of the utility model: the slide groove is communicated with the accommodating box, and one end of the limit sliding block is in contact with the inner wall of the accommodating box.

[0010] As a further solution of the utility model: the diameter of the protection plate is larger than the diameter of the connecting tube, a desiccant can be placed in the space surrounded by the upper and lower groups of protection plates, and sealing rubber pads are provided on the contact end surfaces of the upper and lower groups of protection plates and the sealing frame.

[0011] As a further solution of the utility model: the head and tail ends of the compensation spring are respectively connected to the bottom wall of the accommodating box and the bottom of the limiting sliding block.

[0012] As a further solution of the utility model: the front of the mixing cabinet body is movably connected to a visual window door through a hinge, the back of the arc frame is connected to a support rod, and one end of the support rod is connected to the outer side of the mixing cabinet body.

[0013] Beneficial effects of the utility model:

[0014] The utility model uses symmetrically arranged compensation springs to splice the upper and lower protection plates and the sealing frame together to form a closed hollow cylinder, which covers the outer side of the connecting end of the connecting pipe and the output pipe. The staff can place a desiccant around the connecting end of the connecting pipe and the gas pipe inside the closed hollow cylinder, thereby forming good anti-corrosion protection for the connecting end, ensuring the airtightness of the connecting end, avoiding gas leakage, and facilitating the disassembly and replacement of the pipeline during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a three-dimensional schematic diagram of the whole device in the utility model;

[0017] Figure 2 This utility model Figure 1 The enlarged schematic diagram at A in the middle;

[0018] Figure 3 It is a three-dimensional schematic diagram of the sealing frame in the utility model;

[0019] Figure 4 It is a schematic diagram of the compensation spring structure in the utility model.

[0020] In the figure: 1. Proportioning cabinet body; 2. Connecting pipe; 3. Visual window door; 4. Arc frame; 5. Accommodation box; 6. Slide groove; 7. Limit slider; 8. Protection plate; 9. Sealing frame; 10. Compensation spring; 11. Support rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-4As shown, a mixed gas proportioning cabinet includes a proportioning cabinet body 1, which is the main structure of the device and is used to mix the input gas. The front of the proportioning cabinet body 1 is provided with a control switch, an adjustment knob, a display screen and a digital meter. Two groups of connecting pipes 2 are symmetrically connected on both sides of the proportioning cabinet body 1. The connecting pipes 2 are used to connect to an external gas pipeline. The upper and lower parts of the connecting pipes 2 are symmetrically provided with arc frames 4. The two sides of the arc frame 4 are symmetrically connected with accommodating boxes 5. The inner walls of the two sides of the arc frame 4 are symmetrically provided with slide grooves. 6, the chute 6 is communicated with the accommodating box 5, the chute 6 is internally movably connected with a limit slider 7, one end of the limit slider 7 is in contact with the inner wall of the accommodating box 5, a protection plate 8 is connected between the limit sliders 7, and a limit sliding structure is formed between the limit slider 7 and the chute 6, the limit slider 7 and the protection plate 8 can be lifted and lowered in the horizontal and vertical directions along the chute 6, and sealing frames 9 are connected at both ends of the protection plate 8, the diameter of the protection plate 8 is larger than the diameter of the connecting tube 2, and the space formed by the upper and lower sets of protection plates 8 can be placed Desiccant is placed, sealing rubber pads are arranged on the contact end surfaces of the upper and lower groups of protection plates 8 and the sealing frame 9, and a compensation spring 10 is arranged inside the accommodating box 5. The head and tail ends of the compensation spring 10 are respectively connected to the bottom wall of the accommodating box 5 and the bottom of the limit slider 7. When the connecting pipe 2 is connected to the gas pipeline, the protection plate 8 can be pushed away. At this time, the limit slider 7 squeezes the compensation spring 10 to cause it to deform and be compressed. After the installation is completed, the protection plate 8 is reset under the action of the elastic force of the compensation spring 10. The elastic force of the compensation spring 10 is used to splice the upper and lower protection plates 8 together to form a hollow cylinder. The sealing rubber pads arranged on the end surfaces of the protection plates 8 form a good seal for the splicing of the upper and lower protection plates 8. The sealing rubber pads arranged on the sealing frame 9 are fitted at the connecting end of the connecting pipe 2 and the output pipe to form a radial sealing protection. Desiccant is placed in the space surrounded by the upper and lower groups of protection plates 8 to absorb water vapor in the space, thereby forming a good anti-corrosion protection for the connecting end of the connecting pipe 2 and the gas pipeline.

[0023] The front of the proportioning cabinet body 1 is movably connected with a visual window door 3 through a hinge. The visual window door 3 not only protects the control switch, adjustment knob, display screen and indicator meter provided on the device, but also facilitates the staff to observe the numbers on the display screen and the indicator meter in real time. The back of the arc frame 4 is connected with a support rod 11, one end of the support rod 11 is connected to the outer side of the proportioning cabinet body 1, and the support rod 11 forms a mounting support for the arc frame 4, thereby ensuring the stability of the arc frame 4 when in use.

[0024] The working principle of the utility model is as follows: when the device is in use, the elastic force of the compensation spring 10 makes the upper and lower protection plates 8 and the sealing frame 9 spliced ​​together to form a closed hollow cylinder. The staff can place desiccant around the connecting end of the connecting pipe 2 and the gas pipe inside the closed hollow cylinder to absorb the water vapor in the closed space. The connecting pipe 2 is connected to the gas pipe to transport gas to the inside of the proportioning cabinet body 1 for mixing.

[0025] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A mixed gas proportioning cabinet, comprising a proportioning cabinet body (1), wherein two sets of connecting pipes (2) are symmetrically connected to both sides of the proportioning cabinet body (1); the characteristics are: The connecting tube (2) is symmetrically provided with an arc frame (4) at the upper and lower parts, and the two sides of the arc frame (4) are symmetrically connected with a containing box (5), and the inner walls of the two sides of the arc frame (4) are symmetrically provided with a slide groove (6), and the interior of the slide groove (6) is movably connected with a limit slider (7), and a protection plate (8) is connected between the limit sliders (7), and the two ends of the protection plate (8) are connected with a sealing frame (9), and a compensation spring (10) is arranged inside the containing box (5).

2. A mixed gas proportioning cabinet according to claim 1, characterized in that: The front of the proportioning cabinet body (1) is provided with a control switch, an adjustment knob, a display screen and a digital indicator.

3. A mixed gas proportioning cabinet according to claim 1, characterized in that: The slide groove (6) is in communication with the accommodating box (5), and one end of the limit sliding block (7) is in contact with the inner wall of the accommodating box (5).

4. A mixed gas proportioning cabinet according to claim 1, characterized in that: The diameter of the protection plate (8) is greater than the diameter of the connecting pipe (2); a desiccant can be placed in the space formed by the upper and lower sets of protection plates (8); and sealing rubber pads are provided on the contact end surfaces of the upper and lower sets of protection plates (8) and the sealing frame (9).

5. A mixed gas proportioning cabinet according to claim 1, characterized in that: The head and tail ends of the compensation spring (10) are respectively connected to the bottom wall of the accommodating box (5) and the bottom of the limiting slide block (7).

6. A mixed gas proportioning cabinet according to claim 1, characterized in that: The front of the mixing cabinet body (1) is movably connected to a visual window door (3) via a hinge, and the back of the arc frame (4) is connected to a support rod (11), and one end of the support rod (11) is connected to the outer side of the mixing cabinet body (1).

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