A combined gas pressure regulating box that is easy to adjust

Abstract

The present invention relates to the technical field of gas pressure regulating boxes, and proposes a combined gas pressure regulating box that is easy to adjust, including a mounting cavity on the side wall of the box, a plurality of vents on both sides of the top of the mounting cavity, and a disassembly port at the bottom of the mounting cavity; a pressure regulating device is arranged in the box; a filter screen is detachably arranged in the top of the mounting cavity, and the filter screen is used to be removed from the disassembly port at the bottom. Through the above technical solution, the problem that the filter screen at the vent of the gas pressure regulating box in the prior art is inconvenient to disassemble and clean, and impurities are easily disposed into the box during the cleaning process is solved.

Description

Technical Field

[0001] The invention relates to the technical field of gas pressure regulating boxes, and in particular to a combined gas pressure regulating box that is easy to adjust. Background Art

[0002] A pressure regulating box is a device that places a pressure regulating device in a special box and is responsible for regulating gas pressure. It reduces the pressure of the higher-pressure gas transported by the upstream pipeline network according to the adaptation pressure requirements of the downstream gas-using equipment to ensure that the gas flows stably and safely into various residential gas appliances. It includes suspended and underground types. Among them, the suspended pressure regulating box is mainly assembled with valves, pressure gauges, filters, pressure regulators, flow meters and safety accessories together with gas pipelines. These components are dynamically adjusted according to preset parameters to maintain gas pressure balance, and the internal and external airflow exchange maintained by the vents of the box is essential for the normal operation of the components. However, traditional simple vents cannot prevent fine impurities such as dust in the air from entering the box, resulting in the pressure regulating box being easily contaminated and needing to be cleaned while personnel are inspecting. Even if a filter is installed at the vent, there will be a series of problems such as the filter being inconvenient to disassemble and replace, inconvenient to clean, and easy to process impurities into the box. Therefore, there is an urgent need for a new type of gas pressure regulating box that is easy to adjust and more effectively solves the above-mentioned vent problems. Summary of the invention

[0003] The present invention provides an easily adjustable combined gas pressure regulating box, which solves the problem in the related art that the filter at the vent of the gas pressure regulating box is inconvenient to disassemble and clean, and impurities are easily disposed into the box during the cleaning process.

[0004] The technical solution of the present invention is as follows:

[0005] A combined gas pressure regulating box that is easy to adjust, comprising:

[0006] A box body, wherein the side wall of the box body has an installation cavity, the top of the installation cavity has a plurality of vents on both sides, and the bottom of the installation cavity has a disassembly port;

[0007] A pressure regulating device, wherein the pressure regulating device is arranged in the box;

[0008] A filter screen is detachably arranged in the top of the installation cavity along the vertical direction, and the filter screen is used to be removed from the disassembly opening at the bottom.

[0009] As a further technical solution, the length of the installation cavity is greater than the length of the filter screen, and further comprises:

[0010] A cleaning piece is arranged on the inner wall at the bottom of the installation cavity, and is used to clean the surface of the filter screen when the filter screen is removed.

[0011] As a further technical solution, the filter screen is slidably arranged in the installation cavity, and the filter screen slides through the cleaning part and the disassembly port, and further comprises:

[0012] A door frame, wherein the door frame is arranged on the box body;

[0013] The door body is slidably arranged on the door frame, and the door body has an action part, which is located at one side of the door frame. After the door body slides, the action part drives the filter to slide.

[0014] As a further technical solution, the action part is a magnetic action part, the filter screen has a magnetic part, the door frame has a slide, the door body is slidably arranged in the slide, the installation cavity is connected to the slide, and the magnetic action part and the magnetic part are both located in the slide.

[0015] As a further technical solution, the top of the door body has the action part, the top of the filter screen has the magnetic part, the sliding direction of the door body is arranged vertically, the sliding direction of the door body is parallel to the length direction of the installation cavity, and the cleaning part is a brush part.

[0016] As a further technical solution, both sides of the door frame have the slideways, the center of the door frame also has a slide hole, the slide hole is located between the two slideways, and the two slideways are connected to the slide hole, the bottom of the slideway has a lock hole, and further includes:

[0017] A supporting lock plate is slidably arranged in the lock hole. After sliding, the supporting lock plate extends into or out of the slideway. The supporting lock plate is used to support the bottom of the door body.

[0018] As a further technical solution, after the door body slides, the action part of the door body is used to drive the magnetic part of the filter screen to slide to the top of the supporting lock plate, and further includes:

[0019] An elastic member is arranged in the lock hole, one end of the elastic member is connected to the door frame, and the other end is connected to the supporting lock plate, and the elastic member provides a force for the two supporting lock plates to move closer to each other.

[0020] As a further technical solution, the plurality of vents are located above the cleaning member, and the plurality of vents are arranged vertically at intervals, and further comprises:

[0021] An arc-shaped baffle and an arc-shaped support plate, wherein the arc-shaped baffle and the arc-shaped support plate are both arranged on the box body, and the arc-shaped baffle is located above the vent outside the installation cavity, and the arc-shaped support plate is located below the vent inside the installation cavity.

[0022] As a further technical solution, the vent is a strip-shaped vent, and the arc-shaped baffle and the arc-shaped support plate are both arranged along the edge of the vent.

[0023] As a further technical solution, the door frame is detachably arranged on the box body by fasteners.

[0024] The working principle and beneficial effects of the present invention are:

[0025] 1. Highly efficient dust prevention and easy to clean: An installation cavity in the form of a sandwich is set on the side wall of the box to house the filter. On the one hand, it effectively blocks fine impurities such as dust and flocs in the air from entering the pressure regulating box, keeps the pressure regulating device clean, and ensures its normal operation. On the other hand, between the sandwich and the vents on both sides, that is, arranged in the side wall, it ensures sufficient and smooth airflow exchange between the box and the outside world. When cleaning the filter, the filter in the sandwich can be quickly pulled out to prevent dust and other impurities on the filter from entering the box directly through the vents. Compared with the built-in filter on the inner wall of the box, it is easier to replace and can better prevent dust from entering the box.

[0026] 2. The detachable filter design breaks through the bottleneck of traditional filters that are inconvenient to replace and clean. The operation and maintenance personnel can easily remove the filter from the bottom disassembly port to quickly clean the accumulated impurities and utilize the space at the bottom of the suspended voltage regulating box. At the same time, since several ventilation ports are set at the top of the side wall, during the downward removal of the filter, even if the filter rubs against the inner wall of the installation cavity and dust floats, it gradually moves away from the ventilation port, so that dust will not enter the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0028] Figure 1 It is a schematic structural diagram of a first-view combined gas pressure regulating box that is easy to adjust in the present invention;

[0029] Figure 2 A schematic diagram of the internal structure of a combined gas pressure regulating box that is easy to adjust in the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the box in the present invention;

[0031] Figure 4 It is a partial cross-sectional view of the box body in the present invention;

[0032] Figure 5 This is a diagram showing the coordination of the filter screen and the door body in the present invention;

[0033] Figure 6This is a schematic diagram of the door frame structure in the present invention;

[0034] Figure 7 A schematic diagram of the structure of a combined gas pressure regulating box that is easy to adjust in the present invention from a second viewing angle;

[0035] Figure 8 For the present invention Figure 3 Enlarged view of part A in the middle;

[0036] Fig. 9 For the present invention Figure 4 Enlarged view of middle part B;

[0037] Fig.10 For the present invention Figure 5 Enlarged view of middle C;

[0038] Fig.11 For the present invention Figure 5 Enlarged view of the middle D part;

[0039] Fig.12 For the present invention Figure 6 Enlarged view of middle E part;

[0040] Fig.13 For the present invention Figure 7 Enlarged view of the middle F part;

[0041] Fig.14 It is a cross-sectional view of the keyhole in the present invention.

[0042] In the figure: 1, box body, 101, installation cavity, 102, ventilation port, 103, disassembly port, 2, pressure regulating device, 3, filter screen, 301, magnetic part, 4, cleaning part, 5, door frame, 501, slideway, 502, slide hole, 503, lock hole, 6, door body, 601, action part, 7, supporting lock plate, 8, elastic part, 9, arc baffle, 10, arc support plate. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0044] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0045] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] Reference Figure 1 to Figure 14 , which is the first embodiment of the present invention, proposes a combined gas pressure regulating box that is easy to adjust, including: a side wall of a box body 1 has an installation cavity 101, both sides of the top of the installation cavity 101 have a plurality of ventilation holes 102, and the bottom of the installation cavity 101 has a disassembly opening 103; a pressure regulating device 2 is arranged in the box body 1; a filter screen 3 is detachably arranged in the top of the installation cavity 101 along the vertical direction, and the filter screen 3 is used to be removed from the disassembly opening 103 at the bottom.

[0048] In this embodiment, when the gas pressure regulating box is installed normally, the pressure regulating device 2 is first accurately installed to the preset position inside the box body 1, and the connections of various pipelines, valves and instruments are completed in strict accordance with the installation drawings and technical specifications to ensure that the pressure regulating device 2 is stable, and each component functions normally and the linkage is smooth; then the selected filter 3 is slowly inserted from the disassembly port 103 at the bottom of the installation cavity 101 to ensure that the filter 3 is tightly fitted with the positioning structures such as the card slot and slide rail at the top of the installation cavity 101 to achieve horizontal and stable placement. Specifically, a solid cross bar can be welded on the top of the filter 3, and a fixed ball that can be retracted and moved by a spring can be installed in the cross bar. At the same time, a fixed circular groove is opened at the corresponding position of the top of the installation cavity 101. During the slow insertion of the filter 3, the fixed ball is squeezed into the cross bar by the inner wall of the installation cavity 101 until the filter 3 is in place and the fixed ball corresponds to the fixed circular groove. At this time, under the action of the spring, the fixed ball is tightly pressed against the fixed circular groove to achieve automatic locking of the filter 3. After that, the filter 3 can intercept air impurities flowing through the vent 102 in all directions.

[0049] When the filter 3 needs to be cleaned or replaced, the operation and maintenance personnel use professional tools (such as a wrench to unscrew the fixing screws, a screwdriver to pry the buckles, etc.) to open the protective plate of the disassembly port 103 at the bottom of the box 1, and use tools such as clamps or magnet rods to gently pull out the filter 3, disconnect the connection between the fixing ball and the fixing groove, and then manually clean or replace the new filter 3 and reinstall it.

[0050] Compared with the form of built-in filter screen 3 on the inner wall of box body 1 or welded filter screen 3 at vent 102, it ensures sufficient and smooth airflow exchange between box body 1 and the outside, is more convenient to replace, and can better prevent dust from entering box body 1.

[0051] The filter 3 also has the following optional disassembly forms: slide rail disassembly, metal or plastic slide rails are longitudinally arranged on the inner walls on both sides of the top of the installation cavity 101, and the edge of the filter 3 is equipped with corresponding sliders; when disassembling, the operation and maintenance personnel gently push the filter 3 to slide down along the slide rail until it is completely removed from the bottom disassembly port 103, and its support is completely dependent on the swingable protective plate installed by the torsion spring at the disassembly port 103; snap-on disassembly, similar to the above-mentioned fixed ball structure, elastic snaps are arranged at intervals on the four corners and sides of the top of the installation cavity 101, and matching slots are reserved on the frame of the filter 3. When replacing, press the snap to unlock and lift the filter 3 vertically to take it out; when installing, press down hard on the snap, and a "click" sound indicates that it is installed in place, with a stable structure and low cost.

[0052] Among them, the pressure regulating device 2 mainly includes key components such as valves, pressure gauges, filters, pressure regulators, flow meters and safety accessories, which work together to ensure the accuracy and safety of gas pressure regulation. The valve controls the on-off and flow direction of the gas. The pressure gauge monitors the intake and outlet pressures in real time and provides intuitive feedback on the operating status. The filter pre-intercepts large particles in the gas to protect the pressure regulator. The pressure regulator, as the core, automatically adjusts the valve opening and closing according to the preset pressure value to accurately reduce the pressure. The flow meter counts the gas flow and assists in operational analysis.

[0053] During the operation of the pressure regulating device 2, the high-pressure gas from the upstream pipeline network flows into the pressure regulating device 2 through the air intake pipe, and is first "coarsely screened" by the filter to remove large particles such as mud, rust, etc.; then it enters the pressure regulator, which senses the real-time pressure by virtue of its internal structure and compares it with the preset downstream adaptation pressure. If the pressure is too high, the pressure regulator drives the valve to close and limit the air intake. If it is too low, the valve is opened appropriately to increase the air intake. The pressure gauge monitors the entire process, and the flow meter records the data. Finally, the reduced-pressure gas is safely transported to the downstream gas-using equipment. In the whole process, if there is a gas leak, it will be sensed by the gas detection sensor and other sensors at the first time for alarm processing.

[0054] Furthermore, the length of the installation cavity 101 is greater than the length of the filter screen 3 , and further comprises: a cleaning member 4 is arranged on the inner wall at the bottom of the installation cavity 101 , and the cleaning member 4 is used to clean the surface of the filter screen 3 when the filter screen 3 is removed.

[0055] In this embodiment, the length of the installation cavity 101 is designed to be greater than the length of the filter 3. On the one hand, this is to adapt to the fact that the ventilation holes 102 of most of the box bodies 1 are located at the top of the box bodies 1 and are not arranged on the entire side wall. In order to select the appropriate specifications of the filter 3 and control the cost, the area of ​​the filter 3 after installation just covers several ventilation holes 102 to ensure that the filter 3 can play a role. At the same time, the vacant area at the bottom of the installation cavity 101 is used to arrange the cleaning part 4, so as to improve the utilization rate of the vacant space and improve the functionality. When the filter 3 is disassembled, the cleaning part 4 can perform preliminary cleaning on it.

[0056] Even if the length of the filter screen 3 is shorter than the length of the installation cavity 101 , it does not hinder its installation, and personnel can complete the installation and disassembly with the help of some tools.

[0057] The cleaning part 4 can be selected in the following forms: brush type, a row of brushes are fixed on the inner wall at the bottom of the installation cavity 101, and the brush material can be selected from soft and anti-static nylon thread. When the filter 3 is pulled out downward, the brush fits tightly to the surface of the filter 3, and relies on the flexibility of the bristles to penetrate into the pores of the filter 3 to brush off the attached dust, flocs and other fine impurities; jet type, with a built-in small nozzle and pipeline, connected to an external air source or a small air tank in the box 1, and the nozzle is directed toward the extraction path of the filter 3, and can spray air to forcefully blow away the dust on the surface of the filter 3.

[0058] Furthermore, the filter 3 is slidably arranged in the installation cavity 101, and after sliding, the filter 3 passes through the cleaning part 4 and the disassembly port 103, and also includes: a door frame 5 is arranged on the box body 1; a door body 6 is slidably arranged on the door frame 5, and the door body 6 has an action part 601, and the action part 601 is located on one side of the door frame 5. After the door body 6 slides, the action part 601 drives the filter 3 to slide.

[0059] The changed box door opening form reuses the lower space of the suspended voltage regulating box, and utilizes the linkage design of the door opening form and the filter 3. The operation and maintenance personnel only need to operate the door body 6 to slide when opening the door, which can indirectly drive the filter 3 to slide in the installation cavity 101, thereby realizing convenient disassembly and installation of the filter 3. Because the frequency of replacement of the filter 3 is similar to the frequency of maintenance, the actions of the two are linked together. Compared with the traditional method of operating the door body 6 and the filter 3 separately, the operation steps are reduced, and manpower and time costs are saved. The operator can open the door body 6 with one hand to simultaneously start the filter 3 extraction action and smoothly carry out the cleaning work.

[0060] At the same time, the linkage action also avoids human errors such as omissions and mis-touch caused by step-by-step operation, so that people will not forget to replace the filter 3. It also cleverly integrates the functions of the door body 6, filter 3 and door frame 5, and does not occupy too much space around the box body 1, which meets the actual needs of gas pressure regulating boxes that often need to be placed in limited places (such as corners of residential areas and next to street green belts). The various components work together to achieve the goals of efficient dust prevention and cleaning, while maintaining a compact and small equipment structure and reducing space resource occupation.

[0061] Specific configurations of the components may be as follows: the door frame 5 is made of metal (such as aluminum alloy), the door body 6 is made of lightweight but high-strength engineering plastic or thin steel plate, the door frame 5 is inlaid with rubber sealing strips around it and sealed to the box body 1, and grooves or protrusions are processed on both sides of the edge of the door body 6 to fit the sliding rails of the door frame 5 to form a sliding guide structure to ensure smooth and precise sliding and reduce shaking and deviation. After the door is opened, the door body 6 slides and the acting part 601 integrally formed with it pushes the filter 3 to slide.

[0062] Furthermore, the action part 601 is a magnetic action part, the filter 3 has a magnetic part 301, the door frame 5 has a slide 501, the door body 6 is slidably set in the slide 501, the installation cavity 101 is connected to the slide 501, and the magnetic action part 601 and the magnetic part 301 are both located in the slide 501.

[0063] In this embodiment, in order to facilitate the action part 601 to push the filter 3 to slide, the installation cavity 101 where the filter 3 is located is designed to be connected with the slide 501 opened in the door frame 5, so that the action part 601 sliding on the door body 6 in the slide 501 can contact the filter 3; further consideration is given that when resetting after sliding down, the position of the filter 3 cannot be reset by simply pushing up the door body 6, and a tool is required to install it into the top of the installation cavity 101. In order to save this step and improve the continuity of the action, the action part 601 is designed to be a magnetic action part 601, and the filter 3 has an integrally formed magnetic part 301 to achieve precise and stable linkage.

[0064] When the door is opened and slid down, the action part 601 absorbs the magnetic part 301, and under the action of gravity of the door body 6, overcomes the locking force of the filter 3, drives the filter 3 to slide down to expose the disassembly port 103 for cleaning; when the door is closed and reset, the action part 601 is still absorbed by the magnetic part 301. At this time, pushing up the door body 6 can complete the reset installation of the filter 3. If you want to separate the two, you can continue to push up after the filter 3 is positioned to complete the final sealing action of the door body 6.

[0065] By abandoning complex mechanical transmission connecting rods, hooks and other connection structures and relying solely on magnetic force to achieve linkage, the internal structure of the voltage regulating box is greatly simplified. This not only reduces production costs, but also streamlines the installation process and shortens assembly time.

[0066] Furthermore, the top of the door body 6 has an action portion 601, the top of the filter screen 3 has a magnetic portion 301, the sliding direction of the door body 6 is set vertically, the sliding direction of the door body 6 is parallel to the length direction of the installation cavity 101, and the cleaning member 4 is a brush member.

[0067] In this embodiment, the top of the door body 6 is provided with an acting part 601, and the top of the filter screen 3 is provided with a magnetic part 301. This is because when the connection point located at the top is subjected to force, the filter screen 3 can be quickly subjected to the acting force, and the disassembly and replacement action can be completed quickly. The vertical sliding door body 6 is in line with the actual operation. The door body 6 can fall down and open the door more smoothly under the action of gravity. When resetting, the door body 6 can be pushed up, and the action is natural and smooth.

[0068] The use of a brush as the cleaning element 4 has significant advantages. When the door body 6 drives the filter 3 to slide vertically past the brush, the fine bristles of the brush can penetrate into the pores of the filter 3. Relying on the friction with the impurities, it can effectively brush off fine particles such as dust and flocs. The brush is soft in texture and can also avoid scratching the material of the filter 3, thereby extending its service life. Secondly, the vertical movement causes the impurities that are brushed off to fall naturally due to gravity, gather at the bottom of the box body 1 or directly fall from the disassembly port 103, effectively preventing secondary pollution.

[0069] Furthermore, there are slides 501 on both sides of the door frame 5, and a slide hole 502 is also provided at the center of the door frame 5. The slide hole 502 is located between the two slides 501, and the two slides 501 are connected to the slide hole 502. The bottom of the slide 501 has a lock hole 503, and also includes: a supporting lock plate 7, the supporting lock plate 7 is slidably set in the lock hole 503, and after the supporting lock plate 7 slides, it extends into or out of the slide 501, and the supporting lock plate 7 is used to support the bottom of the door body 6.

[0070] In this embodiment, the design of the supporting lock plate 7 effectively replaces the key unlocking structure. The supporting lock plate 7 extends into the slide 501 from the lock hole 503 at the bottom of the slide 501, and can stably support the bottom of the door body 6 from both sides, forming a box body 1 with a simple structure and saving a certain cost. The sliding operation of the supporting lock plate 7 is simple and intuitive. Before opening the door body 6, slightly slide the supporting lock plate 7 into the lock hole 503 to release the supporting restriction, and the door body 6 can slide smoothly downward in the slide hole 502; push up the door body 6, and after closing, reverse the operation to allow the supporting lock plate 7 to extend out of the support, which is done in one go without the assistance of complex tools.

[0071] Compared with the traditional simple hinge and hook structure to fix the door body 6 on the box body 1, it can only achieve basic opening and closing functions, and it is difficult to take into account both stability and dust prevention requirements. At the same time, it cannot adapt to the linkage relationship between the door body 6 and the filter screen 3 for disassembly.

[0072] The specific configuration of the supporting lock plate 7 is that its main body is made of metal material, such as stainless steel or aluminum alloy, which is hard and corrosion-resistant, ensuring sufficient strength to support the weight of the door body 6. Its appearance is designed to be a long strip, and the width is adapted to the width of the lock hole 503 and the slideway 501 to ensure smooth sliding without jamming. One side edge can be processed into a slightly raised guide strip, which fits the groove on the inner wall of the lock hole 503 to guide the supporting lock plate 7 to slide accurately in a straight line. A rubber buffer pad can also be added at the end of the supporting lock plate 7 to play a buffering role when the door body 6 falls and supports it, reducing impact noise and protecting the door body 6 and the supporting lock plate 7 from damage; the exposed part of the operating end is provided with anti-slip texture or a small handle, which is convenient for the operation and maintenance personnel to manually operate the extension and retraction of the supporting lock plate 7 to achieve fast and smooth support control of the door body 6.

[0073] Furthermore, after the door body 6 slides, the action part 601 of the door body 6 is used to drive the magnetic part 301 of the filter 3 to slide to the top of the supporting lock plate 7, and also includes: an elastic member 8, the elastic member 8 is arranged in the lock hole 503, one end of the elastic member 8 is connected to the door frame 5, and the other end is connected to the supporting lock plate 7, and the elastic member 8 provides a force for the two supporting lock plates 7 to approach each other.

[0074] In this embodiment, the process of opening the door body 6 is as follows: when maintenance is needed, the staff applies external force to the supporting lock plates 7 on both sides to move them away from each other, and the two sides of the bottom of the door body 6 will not be supported by the supporting lock plates 7. At this time, as the door body 6 gradually moves downward, the acting part 601 pushes the magnetic part 301 of the filter screen 3 downward to the supporting lock plate 7 to complete the opening of the door body 6. At the same time, since the bottom of the supporting lock plate 7 is supported by the body of the box 1, the door body 6 will not completely separate from the door frame 5, and the filtering part of the filter screen 3 is completely exposed from the installation cavity 101 for cleaning or replacement.

[0075] The closing process of the door body 6: After the filter 3 is cleaned or replaced, the staff pushes the door body 6 upwards. Due to the magnetic force of the magnetic part and the action part 601, the door body 6 drives the filter 3 to complete the reset. Finally, the door body 6 slides to the top of the supporting lock plates 7 on both sides, and then under the action of elastic parts 8 such as springs, they approach each other and support the door body 6 again. The staff no longer needs to apply external force.

[0076] With respect to the movement of the supporting lock plate 7, the elastic member 8 is used to realize its automatic reset, which greatly improves the automatic functionality of the entire voltage regulating box and saves unnecessary steps.

[0077] Furthermore, several vents 102 are located above the cleaning part 4, and several vents 102 are arranged in a vertical interval, and also include: an arc-shaped baffle 9 and an arc-shaped support plate 10, the arc-shaped baffle 9 and the arc-shaped support plate 10 are both arranged on the box body 1, and the arc-shaped baffle 9 is located above the vent 102 on the outside of the installation cavity 101, and the arc-shaped support plate 10 is located below the vent 102 on the inside of the installation cavity 101.

[0078] In this embodiment, the arc-shaped baffle plate 9 is installed above the vent 102, which can effectively prevent foreign objects such as rain, leaves, large dust particles and bird droppings from falling vertically into the vent 102, thereby reducing the risk of impurities invading the installation cavity 101 and contaminating the filter 3 and the pressure regulating device 2; similarly, the arc-shaped support plate 10 is placed below the vent 102, playing a role in receiving and draining. Even if a small amount of dust breaks through the baffle defense line and enters the vent 102 area, the arc-shaped support plate 10 can catch these impurities, and with its own curvature, guide the dust to slide down to the specific collection area at the bottom of the box 1, thereby preventing the dust from being lifted up again due to airflow disturbance and scattering into the deep of the box 1; the two work together to construct a double-layer protection, greatly improving the dustproof effect of the box 1.

[0079] Furthermore, the vent 102 is a strip-shaped vent, and the arc-shaped baffle 9 and the arc-shaped support plate 10 are both arranged along the edge of the vent 102 .

[0080] In this embodiment, since the vent 102 is strip-shaped, the arc baffle 9 and the arc support plate 10 are arranged along its edge, which can realize all-round protection of the strip vent 102; specifically, both are made of metal (such as galvanized steel plate) or high-strength engineering plastics, with good weather resistance and strength to cope with complex outdoor environmental conditions, and the curvature of the arc is designed according to the width of the vent 102 and the desired diversion angle. Generally speaking, the curvature radius is moderate, which can make rainwater, debris, etc. slide naturally along the surface of the baffle. In terms of installation, it is fixed to the outer wall of the box body 1 along the upper edge of the vent 102 by welding, bolt connection or slot embedding, and the inner wall is set in the same way.

[0081] Furthermore, the door frame 5 is detachably mounted on the box body 1 via fasteners.

[0082] In this embodiment, during the initial installation stage of the gas pressure regulating box, the door frame 5 is detachable, which allows the installer to operate more flexibly and conveniently. The door frame 5 can be aligned and pre-installed with the box body 1 separately, and the position and angle can be adjusted to ensure that it fits the box body 1 to the best state, and then fasteners can be used to tighten it. Compared with the integral and non-detachable door frame 5, this greatly reduces the difficulty of installation and improves the installation efficiency.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A combined gas pressure regulating box that is easy to adjust, characterized in that: include: A box body (1), wherein a side wall of the box body (1) is provided with an installation cavity (101), both sides of the top of the installation cavity (101) are provided with a plurality of ventilation holes (102), and the bottom of the installation cavity (101) is provided with a disassembly opening (103); A pressure regulating device (2), wherein the pressure regulating device (2) is arranged in the box body (1); A filter screen (3), the filter screen (3) being detachably arranged in the top of the installation cavity (101) in the vertical direction, and the filter screen (3) being used to be removed from the removal opening (103) at the bottom; The length of the installation cavity (101) is greater than the length of the filter screen (3), and further comprises: a cleaning piece (4), the cleaning piece (4) being arranged on the inner wall at the bottom of the installation cavity (101), the cleaning piece (4) being used to clean the surface of the filter screen (3) when the filter screen (3) is removed; The filter screen (3) is slidably disposed in the installation cavity (101), and the filter screen (3) passes through the cleaning member (4) and the disassembly opening (103) after sliding. The filter screen (3) further comprises: A door frame (5), wherein the door frame (5) is arranged on the box body (1); a door body (6), the door body (6) being arranged on the door frame (5) in a vertically sliding manner, the door body (6) having an action portion (601), the action portion (601) being located on one side of the door frame (5), and after the door body (6) slides, the action portion (601) drives the filter screen (3) to slide; The action portion (601) is a magnetic action portion, the filter screen (3) has a magnetic portion (301), the door frame (5) has a slideway (501), the door body (6) is slidably arranged in the slideway (501), the installation cavity (101) is connected to the slideway (501), and the magnetic action portion and the magnetic portion (301) are both located in the slideway (501).

2. The easily adjustable combined gas pressure regulating box according to claim 1, characterized in that: The top of the door body (6) has the action portion (601), the top of the filter screen (3) has the magnetic portion (301), the sliding direction of the door body (6) is arranged vertically, the sliding direction of the door body (6) is parallel to the length direction of the installation cavity (101), and the cleaning member (4) is a brush member.

3. The easily adjustable combined gas pressure regulating box according to claim 2, characterized in that: The door frame (5) has the slideways (501) on both sides, the door frame (5) also has a slide hole (502) at the center, the slide hole (502) is located between the two slideways (501), and the two slideways (501) are both connected to the slide hole (502), the slideway (501) has a lock hole (503) at the bottom, and further comprises: A supporting lock plate (7), wherein the supporting lock plate (7) is slidably disposed in the lock hole (503); after sliding, the supporting lock plate (7) extends into or out of the slideway (501); and the supporting lock plate (7) is used to support the bottom of the door body (6).

4. The easily adjustable combined gas pressure regulating box according to claim 3, characterized in that: After the door body (6) slides, the action portion (601) of the door body (6) is used to drive the magnetic portion (301) of the filter screen (3) to slide to the top of the supporting lock plate (7), and further comprises: An elastic member (8), the elastic member (8) being arranged in the lock hole (503), one end of the elastic member (8) being connected to the door frame (5), and the other end of the elastic member (8) being connected to the supporting lock plate (7), the elastic member (8) providing a force for bringing the two supporting lock plates (7) closer to each other.

5. The easily adjustable combined gas pressure regulating box according to claim 1, characterized in that: The plurality of ventilation openings (102) are all located above the cleaning member (4), and the plurality of ventilation openings (102) are arranged at intervals in the vertical direction, and further include: An arc-shaped baffle plate (9) and an arc-shaped support plate (10), wherein the arc-shaped baffle plate (9) and the arc-shaped support plate (10) are both arranged on the box body (1), and the arc-shaped baffle plate (9) is located above the vent (102) outside the installation cavity (101), and the arc-shaped support plate (10) is located below the vent (102) inside the installation cavity (101).

6. The easily adjustable combined gas pressure regulating box according to claim 5, characterized in that: The vent (102) is a strip-shaped vent, and the arc-shaped baffle (9) and the arc-shaped support plate (10) are both arranged along the edge of the vent (102).

7. The easily adjustable combined gas pressure regulating box according to claim 1, characterized in that: The door frame (5) is detachably arranged on the box body (1) via fasteners.

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