Safety type fuel gas pressure regulating box

Abstract

The invention relates to the technical field of fuel gas pressure regulating boxes, and provides a safe fuel gas pressure regulating box which comprises a box body and a cover plate, and an opening is formed in the side wall of the box body. The cover plate is arranged on the box body in a swinging mode, the cover plate is located outside the box body, the opening is covered or canceled after the cover plate swings, and force for continuously covering the opening is applied to the cover plate. According to the technical scheme, the problem that dust easily enters the fuel gas pressure regulating box in the prior art is solved.

Description

Technical Field

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

[0002] The gas pressure regulating box is an important hub in the gas transmission network, playing a key role in regulating gas pressure and ensuring safe and stable gas use.

[0003] Its appearance is usually a metal box with a variety of precision components integrated inside. As a core component, the pressure regulating valve can automatically adjust the flow and pressure of the gas according to the preset pressure value to ensure that the output pressure meets the user's requirements. Whether it is the domestic gas used in residential areas or the production gas used in industrial sites, the pressure regulating box can accurately reduce the high pressure gas upstream to the appropriate range.

[0004] The existing pressure regulating boxes generally have ventilation holes arranged on the side walls of the box to meet the possible air circulation needs when gas leaks. However, such ventilation holes on the side walls of the box are often particularly easy to enter dust or sand particles, and in the process of continuous accumulation, the cleanliness level inside the pressure regulating box is very poor, which not only affects the regular maintenance operations, but also may increase the corrosion damage of internal components and reduce the service life. Summary of the invention

[0005] The invention provides a safe gas pressure regulating box, which solves the problem that dust easily enters the gas pressure regulating box in the prior art.

[0006] The technical solution of the present invention is as follows: A safe gas pressure regulating box, comprising: A box body, wherein a side wall of the box body has an opening; A cover plate is swingably arranged on the box body, the cover plate is located outside the box body, and the cover plate covers or uncovers the opening after swinging, and a force is applied to the cover plate to continuously cover the opening.

[0007] As a further technical solution, The cover plate is arranged tilted, and the force for the cover plate to continuously cover the opening is its gravity.

[0008] As a further technical solution, The cover plate is hinged on the box body, and the hinge between the cover plate and the box body is located at the upper edge of the cover plate.

[0009] As a further technical solution, it also includes: A flexible connecting plate is used to connect the box body and the cover plate, one end of the flexible connecting plate is connected to the upper end of the cover plate, and the other end of the flexible connecting plate is connected to the side wall of the box body.

[0010] As a further technical solution, The box body is provided with a connecting ring; Also includes: A rope body, the cover plate is arranged on the box body through the rope body, one end of the rope body is connected to the connecting ring, and the other end is connected to the upper edge of the cover plate.

[0011] As a further technical solution, it also includes: A counterweight block is movably arranged on the cover plate, and the counterweight block moves close to or away from the swing axis of the cover plate.

[0012] As a further technical solution, it also includes: A magnet strip, wherein the magnet strip is disposed on the cover plate, and two ends of the magnet strip are respectively close to the upper and lower ends of the cover plate; The counterweight block has a first magnetic block, and the counterweight block is attracted to the magnet bar through the first magnetic block.

[0013] As a further technical solution, it also includes: A connecting rope, one end of which is connected to the box body, and the other end of which is connected to a second magnetic block, wherein the second magnetic block is used to attract the magnetic bar; After the second magnetic block is attracted on the magnet bar, the cover plate stops covering the opening. When the second magnetic block is attracted on different positions of the magnet bar, the cover plate swings at different angles.

[0014] As a further technical solution, it also includes: The surface of the second magnetic block is provided with an anti-skid pad.

[0015] As a further technical solution, it also includes: A dustproof net is arranged in the opening.

[0016] The working principle and beneficial effects of the present invention are: In the present invention, the cover plate covers the opening of the side wall of the box under normal conditions, effectively preventing foreign debris and dust from invading the box, effectively maintaining the clean environment of the gas pressure regulating equipment in the box, and the natural ventilation holes are located at the bottom of the box, making it difficult for foreign debris and dust to enter, thereby reducing the risk of equipment failure caused by impurity accumulation. Once the pressure inside the box suddenly rises due to gas leakage or abnormal temperature rise, the pressure difference formed inside and outside the box will drive the cover plate to swing open, and cooperate with the natural ventilation holes at the bottom of the box to balance the air pressure in a timely and rapid manner, thereby reducing the pressure of the natural ventilation holes at the bottom, effectively preventing the box from suffering structural damage due to excessive pressure, such as deformation, rupture, etc., greatly improving the overall safety performance of the gas pressure regulating box, and providing reliable guarantee for its stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 For the present invention Figure 1 Middle A is a schematic diagram of a partially enlarged structure; Figure 3 It is a schematic diagram of the main structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the BB cross-section structure.

[0019] In the figure: 1-box, 11-opening, 12-connecting ring, 2-cover plate, 31-flexible connecting plate, 32-rope body, 41-counterweight block, 42-magnetic bar, 43-first magnetic block, 51-connecting rope, 52-second magnetic block, 53-anti-slip pad, 6-dustproof net. DETAILED DESCRIPTION

[0020] 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.

[0021] 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".

[0022] 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.

[0023] 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.

[0024] like Figures 1 to 4 As shown, the present invention provides a safe gas pressure regulating box, comprising a box body 1 and a cover plate 2, wherein the side wall of the box body 1 has an opening 11, and the bottom of the box body 1 has a natural ventilation hole. The cover plate 2 is swingably arranged on the box body 1, and the cover plate 2 is located outside the box body 1. After the cover plate 2 swings, it covers or cancels the opening 11, and a force is applied to the cover plate 2 to continuously cover the opening 11.

[0025] In this embodiment, the cover plate 2 covers the opening 11 of the side wall of the box body 1 under normal conditions, effectively preventing foreign debris and dust from invading the box body 1, effectively maintaining the clean environment of the gas pressure regulating equipment in the box body 1, and the natural ventilation holes are located at the bottom of the box body, which makes it difficult for foreign debris and dust to enter, thereby reducing the risk of equipment failure caused by impurity accumulation. Once the pressure inside the box body 1 suddenly rises due to gas leakage or abnormal temperature rise, the pressure difference formed inside and outside the box body will drive the cover plate 2 to swing open, and cooperate with the natural ventilation holes at the bottom of the box body 1 to balance the air pressure in a timely and rapid manner, thereby reducing the pressure of the natural ventilation holes at the bottom, effectively preventing the box body from suffering structural damage due to excessive pressure, such as deformation, rupture, etc., greatly improving the overall safety performance of the gas pressure regulating box, and providing reliable guarantee for its stable operation.

[0026] Furthermore, the cover plate 2 is arranged to be inclined, and the force that keeps the cover plate 2 covering the opening 11 is its gravity.

[0027] In this embodiment, the cover plate 2 is tilted and continuously closes the opening 11 by its own gravity, cleverly using the gravitational potential energy to achieve an energy-free automatic closing mechanism. This design not only simplifies the structure and reduces the investment cost of additional power devices, but also reduces the potential risk of cover failure due to power component failure. The direction of gravity and the tilt angle of the cover plate 2 cooperate to ensure a stable sealing effect under normal conditions, prevent the cover plate from accidentally opening due to slight pressure fluctuations or external interference, further enhance the sealing and safety of the box, and create favorable conditions for the normal operation of the gas pressure regulating equipment.

[0028] From a mechanical point of view, the gravity of the inclined cover plate 2 can be decomposed into two components, one perpendicular to the plane of the opening 11 and the other parallel to the plane of the opening 11. The vertical component provides sealing pressure on the opening 11 to a certain extent, ensuring that under normal working conditions, even if there are slight internal pressure fluctuations or external disturbances, the cover plate 2 can fit the opening tightly to prevent the ingress and egress of dust and gas. The parallel component forms a torque at the swing axis of the cover plate 2, which interacts with the torque generated by the internal pressure, determines the opening and closing state of the cover plate, and forms a natural mechanical balance relationship between the movement of the cover plate 2 and the pressure change in the box.

[0029] There are many implementations for the swing setting of the cover plate 2: Implementation method 1: The cover plate 2 is hinged on the box body 1 , and the hinge between the cover plate 2 and the box body 1 is located at the upper edge of the cover plate 2 .

[0030] The cover plate 2 is hinged on the box body 1 and the hinge is located at the upper edge of the cover plate 2. This hinge mode, in combination with the tilt setting and gravity, enables the cover plate 2 to swing open in a relatively stable and predictable manner when subjected to the pressure inside the box. When the pressure inside the box increases to a level sufficient to overcome the moment generated by the gravity of the cover plate 2, the cover plate 2 can smoothly swing upward around the hinge point, and cooperate with the natural ventilation holes to quickly release the pressure inside the box, thereby improving safety.

[0031] Implementation method 2: It includes a flexible connecting plate 31 , which is used to connect the box body 1 and the cover plate 2 , one end of the flexible connecting plate 31 is connected to the upper end of the cover plate 2 , and the other end of the flexible connecting plate 31 is connected to the side wall of the box body 1 .

[0032] In this embodiment, a flexible connecting plate 31 is used for connection. While achieving connection of the cover plate 2 and ensuring that the cover plate 2 can swing, the flexible connecting plate 31 can reduce the gap between the cover plate 2 and the box body 1, thereby preventing dust from entering the connection gap between the cover plate 2 and the box body 1 and affecting the swing performance.

[0033] Implementation method three: The box body 1 has a connecting ring 12 and a rope body 32 , through which the cover plate 2 is arranged on the box body 1 , one end of the rope body 32 is connected to the connecting ring 12 , and the other end is connected to the upper edge of the cover plate 2 .

[0034] The rope 32 provides a buffer and limit function when the cover 2 swings. When the pressure in the box suddenly increases and the cover 2 opens quickly, the rope 32 can absorb part of the kinetic energy and slow down the swing speed of the cover 2, avoiding damage caused by violent collision between the cover 2 and the box 1 or other parts. When the cover 2 is closed, the rope 32 and the gravity of the cover 2 work together to ensure that the cover 2 tightly covers the opening 11. The length, material and connection method of the rope 32 can be designed and adjusted according to actual needs. For example, by changing the length of the rope 32, the maximum swing angle of the cover 2 can be fine-tuned, or high-strength and wear-resistant rope materials can be selected to improve its service life and reliability.

[0035] Furthermore, it also includes a counterweight block 41 , which is movably arranged on the cover plate 2 , and the counterweight block 41 moves close to or away from the swing axis of the cover plate 2 .

[0036] In this embodiment, the balancing weight 41 is movably arranged on the cover plate 2 to provide a high degree of flexibility for adjusting the opening pressure of the cover plate 2. By changing the position of the balancing weight 41 on the cover plate 2, the center of gravity and the gravity moment of the cover plate 2 can be accurately adjusted. From the principle of mechanics, when the balancing weight 41 moves toward the swing axis of the cover plate 2, the gravity moment of the cover plate 2 is reduced, which means that a smaller pressure inside the box can overcome the gravity moment to swing the cover plate 2 open, thereby reducing the opening pressure of the cover plate 2.

[0037] On the contrary, when the counterweight 41 is away from the swing axis, the gravity moment increases, and the opening pressure of the cover plate 2 increases. This adjustability enables the gas pressure regulating box to adapt to different gas pressure conditions, the altitude of different regions affects the atmospheric pressure, and then affects the relative pressure in the pressure regulating box and different safety standards. For example, in a high-pressure gas pressure regulating system, the counterweight 41 can be adjusted to a suitable position to increase the opening pressure to ensure that the cover plate 2 will not be opened by mistake within the normal working pressure range; while in a low-pressure or pressure regulating box that is more sensitive to pressure changes, the opening pressure can be reduced to ensure the safe and stable operation of the pressure regulating box and the gas system.

[0038] Furthermore, it also includes a magnet strip 42, which is arranged on the cover plate 2, with both ends of the magnet strip 42 close to the upper and lower ends of the cover plate 2 respectively; the counterweight block 41 has a first magnet block 43, and the counterweight block 41 is attracted to the magnet strip 42 through the first magnet block 43.

[0039] In this embodiment, the magnet strip 42 is arranged on the cover plate 2 and attracts the first magnet block 43 on the counterweight block 41, so that the position adjustment of the counterweight block 41 on the cover plate is more convenient and stable. Without a complex mechanical fixing structure, the counterweight block 41 can be fixed at different positions of the magnet strip 42 to achieve precise adjustment of the gravity moment of the cover plate 2, and this magnetic fixing method is easy to operate and repeatedly adjust, which is conducive to flexibly changing the opening pressure of the cover plate according to actual needs during the installation and commissioning of the voltage regulating box and subsequent maintenance.

[0040] Furthermore, it also includes a connecting rope 51, one end of which is connected to the box body 1, and the other end is connected to a second magnetic block 52, and the second magnetic block 52 is used to attract the magnet bar 42; after the second magnetic block 52 is attracted to the magnet bar 42, the cover plate 2 removes the covering of the opening 11, and the second magnetic block 52 is attracted to different positions of the magnet bar 42, and the cover plate 2 swings at different angles.

[0041] In this embodiment, when it is necessary to cooperate with natural ventilation holes to further increase the overall ventilation efficiency and keep ventilation at all times, it is necessary to keep the opening 11 open all the time. After the cover 2 is swung to remove the cover of the opening 11, the second magnetic block 52 can be used to attract part of the magnet bar 42. At the same time, by adjusting the different positions of the second magnetic block 52 on the magnet bar 42, the swing angle of the cover 2 can be adjusted, so that the size of the open opening 11 can be adjusted, which is convenient for adjustment.

[0042] Furthermore, the surface of the second magnetic block 52 has an anti-slip pad 53 .

[0043] In this embodiment, the anti-skid pad 53 is made of rubber or silicone with a high friction coefficient, which increases the friction with the magnet strip 42, resists external interference, keeps the second magnet block 52 fixed, and stabilizes the swing angle and state of the cover plate 2. At the same time, it buffers the impact of collision, reduces wear, and prolongs the life of the second magnet block 52 and the magnet strip 42.

[0044] Furthermore, a dustproof net 6 is included, and the dustproof net 6 is arranged in the opening 11 .

[0045] In this embodiment, the dustproof net 6 disposed in the opening 11 forms a dustproof barrier for the gas pressure regulating box. During the daily operation of the gas pressure regulating box, the cover plate 2 covers the opening 11. When pressure balance adjustment is required, the cover plate 2 will open the opening 11, so that solid impurities such as dust and sand in the outside air may enter the box body along with the flow of gas. The existence of the dustproof net 6 can effectively intercept these impurities and prevent them from entering and contaminating the pressure regulating equipment.

[0046] 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 safe gas pressure regulating box, characterized in that: include: A box body (1), wherein a side wall of the box body (1) has an opening (11); A cover plate (2), the cover plate (2) being swingably arranged on the box body (1), the cover plate (2) being located outside the box body (1), the cover plate (2) covering or uncovering the opening (11) after swinging, and a force being applied to the cover plate (2) to continuously cover the opening (11); The cover plate (2) is arranged tilted, and the force that causes the cover plate (2) to continuously cover the opening (11) is its gravity; A counterweight block (41), the counterweight block (41) being movably disposed on the cover plate (2), the counterweight block (41) moving closer to or farther away from the swing axis of the cover plate (2), A magnet strip (42), the magnet strip (42) being arranged on the cover plate (2), with two ends of the magnet strip (42) being respectively close to the upper and lower ends of the cover plate (2); The counterweight block (41) has a first magnetic block (43), and the counterweight block (41) is attracted to the magnetic bar (42) via the first magnetic block (43).

2. A safe gas pressure regulating box according to claim 1, characterized in that: The cover plate (2) is hinged on the box body (1), and the hinge point between the cover plate (2) and the box body (1) is located at the upper edge of the cover plate (2).

3. A safe gas pressure regulating box according to claim 1, characterized in that: Also includes, A flexible connecting plate (31), the flexible connecting plate (31) being used to connect the box body (1) and the cover plate (2), one end of the flexible connecting plate (31) being connected to the upper end of the cover plate (2), and the other end of the flexible connecting plate (31) being connected to the side wall of the box body (1).

4. A safe gas pressure regulating box according to claim 1, characterized in that: The box body (1) is provided with a connecting ring (12); Also includes: A rope body (32), wherein the cover plate (2) is arranged on the box body (1) through the rope body (32), one end of the rope body (32) is connected to the connecting ring (12), and the other end is connected to the upper edge of the cover plate (2).

5. A safe gas pressure regulating box according to claim 1, characterized in that: Also includes: a connecting rope (51), one end of the connecting rope (51) being connected to the box body (1), and the other end of the connecting rope being connected to a second magnetic block (52), the second magnetic block (52) being used to attract the magnetic bar (42); After the second magnetic block (52) is attracted to the magnetic strip (42), the cover plate (2) no longer covers the opening (11), and the second magnetic block (52) is attracted to different positions of the magnetic strip (42), and the cover plate (2) swings at different angles.

6. A safe gas pressure regulating box according to claim 5, characterized in that: Also includes: The surface of the second magnetic block (52) is provided with an anti-slip pad (53).

7. A safe gas pressure regulating box according to any one of claims 1 to 4, characterized in that: Also includes: A dustproof net (6), wherein the dustproof net (6) is arranged in the opening (11).

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