Metering box with ventilation and heat dissipation structure

Abstract

The invention discloses a metering box with a ventilation and heat dissipation structure, and belongs to the technical field of metering boxes. The electric meter box mainly comprises a box body, a side box and a ventilation opening, and at least two groups of electric meters are installed in the box body; the side box is fixedly installed on one side of the box body, a sealing opening is formed in the upper end of one side of the side box, and a wooden plug is arranged at the sealing opening. The ventilation opening is formed in the box body and comprises an air inlet and an air outlet, a partition is arranged between the air inlet and the air outlet, and a fan is arranged at the air outlet. According to the metering box with the ventilation and heat dissipation structure, the side box, the second sliding block, the second sliding rail, the connecting rod and the filter plate are arranged, in the using process, the filter plate can filter the ventilation opening of the metering box, dust and other impurities are prevented from entering the metering box to affect electrical components, and the service life of the metering box is prolonged. Meanwhile, a worker can adjust the position of the filter plate through a second sliding block and a connecting rod, so that the filter plate can be disassembled, assembled and replaced subsequently.

Description

Technical Field

[0001] The present application relates to the technical field of metering boxes, and specifically to a metering box with a ventilation and heat dissipation structure. Background Art

[0002] A metering box is a special box for installing and protecting measuring instruments; among them, measuring instruments such as electric meters, water meters, gas meters and other related devices, and the metering box is mainly used for accurately measuring and managing the usage of energy or resources such as electricity, water, gas, etc.; since various electrical components are included in the metering box, a large amount of heat will inevitably be generated during the operation of these electrical components. If the heat cannot be dissipated in time, the temperature inside the metering box will rise, thus affecting the normal operation of the electrical components. Therefore, the metering box needs to be provided with a ventilation and heat dissipation structure to introduce fresh air and reduce its internal temperature.

[0003] For example, the patent with the publication number CN219834731U discloses a metering box with an aluminum foil heat dissipation structure, including a box body, a heat generating device, and an aluminum foil heat dissipation component. The heat generating device is located inside the box body, and a part of the aluminum foil heat dissipation component is located inside the box body. By connecting the aluminum foil to the heat generating device and extending the aluminum foil out of the box body through the air outlet hole, and assisting the fan to accelerate the air flow, the heat dissipation effect is stronger. Although it realizes the ventilation and heat dissipation function of the metering box, in the actual use process of the metering box, it may be applied to different indoor or outdoor scenarios. When the metering box is located outdoors, it often experiences changes such as high and low temperature differences and rain and snow weather. And when the metering box is outdoors, there is more dust outdoors, and more dust will float into the box through the ventilation openings of the metering box. If the metering box cannot filter out impurities such as dust outdoors, after long-term accumulation of dust, it will affect the normal use of the electrical components inside the metering box. Therefore, it is necessary to provide a metering box with a ventilation and heat dissipation structure to solve the above problems.

[0004] It should be noted that the above information disclosed in this background art part is only used to understand the background art of the concept of the present application, and therefore, it may include information that does not constitute the prior art. Summary of the Invention

[0005] Based on the above problems existing in the prior art, the problem to be solved by the present application is: to provide a metering box with a ventilation and heat dissipation structure, which solves the problem that the metering box cannot filter dust and other particulate impurities.

[0006] The technical solution adopted by the present application to solve its technical problems is: a metering box with a ventilation and heat dissipation structure, including: A box body, in which at least two groups of electric meters are installed; A side box, which is fixedly installed on one side of the box body. There is a seal opening at the upper end of one side of the side box, and a wooden plug is arranged at the seal opening; A vent, which is opened on the box body. The vent includes an air inlet and an air outlet. A partition is provided between the air inlet and the air outlet. A fan is provided at the air outlet, and the fan is fixedly connected to the outer surface of the box body. An adjustment assembly, which is installed at the upper end inside the box body. The adjustment assembly includes: A first slide rail, which is fixedly installed at the upper end inside the box body; A first slider, which is slidably installed on one side of the first slide rail. A support rod is fixedly installed at the bottom of the first slider; A first spring, which is fixedly installed on one side of the inner wall of the box body. The other side of the first spring is fixedly connected to the first slider; A filter plate, which is fixedly installed at the bottom of the support rod. Multiple groups of filter holes are opened on the filter plate.

[0007] Furthermore, a cylinder is fixedly installed at the upper end inside the box body. One side of the output end of the cylinder is fixedly connected to the first slider.

[0008] Furthermore, a movable assembly is installed inside the box body. The movable assembly includes a vertical rod fixedly installed inside the box body. Two groups of second slide rails are fixedly installed on both sides of the vertical rod. Two of the second slide rails are arranged obliquely upward, and the other second slide rails are arranged obliquely downward. The other ends of the second slide rails are respectively fixedly connected to both sides inside the box body. The two second slide rails close to the side box are defined as the first unit, and the two second slide rails far from the side box are the second unit. The second unit is a mirror image of the first unit. A second slider is slidably installed at a position close to the vertical rod on the second slide rail. A sealing plate is fixedly installed at one end of the second slider away from the second slide rail. One side of the sealing plate away from the second slider is attached to the inner wall of the box body. One end of the second slider is fixedly installed with a second spring, and the other end of the second spring is fixedly connected to the inner wall of the box body.

[0009] Furthermore, an upper baffle is fixedly installed at the upper end inside the box body. A first rack is slidably installed on one side of the upper baffle. A gear is movably connected through a bearing at the middle position of the upper baffle. The first rack meshes with the gear. A second rack is also slidably installed at the bottom on one side of the upper baffle. The second rack meshes with the gear. One side of the first rack is fixedly connected to the first slider.

[0010] Further, a first connecting rod is rotatably installed on the other side of the first rack, the other end of the first connecting rod is rotatably connected to one set of the second sliders of the second unit, one side of the second rack is rotatably connected to a second connecting rod, and the other end of the second connecting rod is rotatably connected to one set of the second sliders of the first unit.

[0011] Further, a part of the first connecting rod is made of an elastic material and forms an elastic end, and a part of the second connecting rod is also made of an elastic material.

[0012] Further, a telescopic assembly is installed between the two sets of the second sliders of the first unit, and the telescopic assembly is also installed between the two sets of the second sliders of the second unit. A first rod and a second rod are respectively and fixedly installed on the two sets of the second sliders of the first unit. A sleeve is sleeved between the first rod and the second rod. The inner diameter of the sleeve is larger than the diameters of the first rod and the second rod. Limiting steps are arranged on both sides of the sleeve. A protruding end is arranged at a position where the first rod and the second rod are close to each other. The diameter of the protruding end is larger than the diameters of the first rod and the second rod and is adapted to the inner diameter of the sleeve.

[0013] Further, first electromagnets are arranged at positions of both ends of the sleeve close to the limiting steps, second electromagnets are arranged at positions of the first rod and the second rod close to the protruding end, and the first electromagnets and the second electromagnets repel each other with the same polarity.

[0014] Further, the filter plate is composed of an outer frame and a plate body. The outer frame is fixedly connected to the support rod, the plate body is connected to the inside of the outer frame by bolts, and the filter holes are formed in the plate body.

[0015] The beneficial effects of the present application are as follows: A metering box with a ventilation and heat dissipation structure provided by the present application, by providing a side box, second sliders, second slide rails, connecting rods and a filter plate, during use, the filter plate can filter the ventilation opening position of the metering box to prevent dust and other impurities from entering the metering box and affecting electrical components. At the same time, the staff can adjust the position of the filter plate through the second sliders and the connecting rods, so as to facilitate the subsequent disassembly, installation and replacement of the filter plate.

[0016] In addition to the purposes, features and advantages described above, the present application has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The specification drawings forming a part of the present application are used to provide a further understanding of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings: Figure 1 It is the overall schematic diagram of a metering box with a ventilation and heat dissipation structure in this application; Figure 2 It is Figure 1 the side view of the overall structure in; Figure 3 It is Figure 1 the schematic diagram of the overall structure after the box door is opened in; Figure 4 It is Figure 2 the schematic diagram after partial section of the overall structure in; Figure 5 It is Figure 1 the sectional view of the overall structure in; Figure 6 It is Figure 5 the side view of the overall structure in; Figure 7 It is Figure 6 the enlarged view of the structure in area A; Figure 8 It is Figure 5 the schematic diagram of the overall structure after the filter plate is installed in.

[0018] Among them, each reference numeral in the figure: 1, box body; 2, side box; 21, seal; 3, ventilation opening; 4, electric meter; 5, movable component; 51, sealing plate; 52, second slider; 53, second slide rail; 54, vertical rod; 55, second spring; 6, telescopic component; 61, first rod; 62, sleeve; 63, second rod; 7, adjusting component; 71, upper baffle; 72, first connecting rod; 73, second connecting rod; 74, first rack; 75, gear; 76, second rack; 77, first slide rail; 78, first spring; 10, cylinder; 11, filter plate; 12, support rod; 13, first slider. Specific implementation manners

[0019] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0020] In order to enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0021] Example 1: This example mainly introduces the basic structure and working principle of a metering box with a ventilation and heat dissipation structure. Specifically: As Figures 1 - 3 shown, the present application provides a metering box with a ventilation and heat dissipation structure, including a box body 1. A side box 2 is fixedly installed on one side of the box body 1, which is mainly used for storing filtering tools, and the inner cavity of the side box 2 communicates with the inner cavity of the box body 1; At least two electric meters 4 are installed in the box body 1, which are mainly used for measuring the use of electricity. At the same time, a box door is movably installed on one side of the box body 1, and a transparent observation window is provided on the box door, so that the staff can observe the situation inside the box body 1 through the observation window; However, the electric meter 4 will inevitably generate heat during use, so it is necessary to ventilate and dissipate heat from the box body 1. As Figure 2 、 Figures 4 - 6 shown, a ventilation opening 3 is provided on the box body 1. In this example, the ventilation opening 3 is mainly divided into an air inlet and an air outlet. A partition is provided between the air inlet and the air outlet. At the same time, a fan (not marked in the figure) is provided at the air outlet, and the fan is fixedly connected to the outer surface of the box body 1. The ventilation opening 3 is mainly used for discharging the hot air inside the box body 1, and fresh air can enter the box body 1 from the air inlet to achieve the effect of ventilation and heat dissipation. And the ventilation opening 3 is provided on the back of the electric meter 4. Taking the perspective in Figure 1 as an example, regarding the box door as the front of the box body 1, and the ventilation opening 3 is provided on the back of the box body 1. During the use of the electric meter 4, usually its back generates heat, so that the air entering from the ventilation opening 3 can directly blow the electric meter 4 to achieve a better heat dissipation effect; An adjustment component 7 is installed at the upper end inside the box body 1. The adjustment component 7 includes a first slide rail 77 fixedly installed at the upper end inside the box body 1. A first slider 13 is slidably installed on one side of the first slide rail 77. When the first slider 13 is subjected to an external force, the first slider 13 is adapted to slide on the first slide rail 77; A support rod 12 is fixedly installed at the bottom of the first slider 13, and a filter plate 11 is fixedly installed at the bottom of the support rod 12. A plurality of filter holes are provided on the filter plate 11 to facilitate filtering dust and impurities such as particles in the air. At the same time, a sealing opening 21 is provided at the upper end of one side of the side box 2, which is mainly convenient for the staff to push the first slider 13 through the sealing opening 21 with the help of tools to adjust the position of the filter plate 11. When the sealing opening 21 is not in use, the staff can block the sealing opening 21 with a wooden plug, and the wooden plug is tightly fitted with the sealing opening 21. When the sealing opening 21 needs to be used, the staff can remove the wooden plug from the sealing opening 21; Continue to refer to Figure 6, a first spring 78 is fixedly installed on the side of the first slider 13 away from the side box 2, and the other side of the first spring 78 is fixedly connected to the inner wall of the box body 1. Thus, when an external force acts on the filter plate 11, the support rod 12 and the first slider 13 will slide synchronously, and the first spring 78 will be compressed. When the external force is removed, the first slider 13 will return to its initial position due to the resilience of the first spring 78, and at the same time, the filter plate 11 will return to its initial position; In the initial state, due to the elastic force of the first spring 78, the filter plate 11 is located at a position away from the ventilation opening 3. For specific reference, please refer to Figure 6 , at this time, a part of the filter plate 11 is located inside the box body 1, and the other part is located inside the side box 2. At the same time, the first slider 13 is located at a position close to the seal 21. At this time, the ventilation opening 3 is in a ventilation state, and the filter plate 11 does not block the ventilation opening 3. However, when the staff needs to use the filter plate 11, first, the wooden plug at the seal 21 needs to be removed. Then, with the help of tools, the first slider 13 is pushed. The movement of the first slider 13 drives the filter plate 11 to move synchronously. The filter plate 11 moves towards the ventilation opening 3. When the filter plate 11 overlaps with the ventilation opening 3, it means that the filter plate 11 has moved in place. Then, one end of the tool used for pushing can be abutted inside the box body 1, and the other end continues to be abutted on the first slider 13 to offset the elastic force of the first spring 78, so that the filter plate 11 can be kept in the moved position. This method is one of the many methods to limit the reset of the filter plate 11. Finally, the staff can plug the wooden plug back into the seal 21; In summary, the staff can freely control the placement position of the filter plate 11. In most cases, the filter plate 11 is in a position overlapping with the ventilation opening 3 to filter dust and impurities inside the box body 1. When the filter plate 11 needs to be cleaned or replaced, the staff only needs to take out the tool from the box body 1. The first slider 13 is no longer abutted. Under the action of the resilience of the first spring 78, the first slider 13 slides towards the side box 2. The first slider 13 drives the filter plate 11 to slide synchronously. Finally, the filter plate 11 slides to the initial position. It should be noted that the side plate on the side of the side box 2 away from the box body 1 is also connected by bolts, so that it is convenient for the staff to disassemble and assemble the side plate of the side box 2, and it is convenient to clean and replace the filter plate 11 and other operations; It should be noted that in this application, the filter plate 11 is mainly composed of an outer frame and a plate body. The outer frame is fixedly connected to the support rod 12, the plate body is connected inside the outer frame by bolts, and the filter holes are opened on the plate body. When the filter plate 11 needs to be replaced, the staff only needs to unscrew the screws on the plate body, and then connect the plate body to be replaced to the outer frame by bolts, and the rapid replacement of the filter plate 11 can be realized.

[0022] Embodiment 2: In the above embodiment, the staff can push the first slider 13 to change the position of the filter plate 11, and use bolts to realize the rapid disassembly and replacement of the filter plate 11. However, when the filter plate 11 is in the replacement state (that is, the filter plate 11 is in the initial position), the vent 3 is still in the ventilation state, but at this time, dust and other particulate impurities can directly enter the box body 1; When the meter box is used in a mining area, since coal mining will generate a lot of dust and particulate impurities, the filter plate 11 in the box body 1 needs to maintain a good filtering effect and ensure ventilation. The staff needs to frequently replace or clean the filter plate 11. However, when replacing the filter plate 11, it is usually in the initial position, and the vent 3 is in the ventilation state. Therefore, a large amount of dust generated during coal mining will enter the box body 1. When the number of times is large, a lot of dust will also accumulate in the box body 1, thereby affecting the normal operation of the electric meter 4; In order to solve this problem, this embodiment adds an adjustable sealing device on the basis of the first embodiment, specifically: Figures 4 - 8 As shown, first, in the above embodiments, when adjusting the filter plate 11, the staff pushes the first slider 13 through a tool to adjust it, and the staff needs to observe the position of the filter plate 11 at all times. In this embodiment, the installation method of the filter plate 11 is limited, and a cylinder 10 is fixedly installed at the upper end of the box body 1, and one side of the output end of the cylinder 10 is fixedly connected to the first slider 13; In the initial state, when the metering box has not been used, the filter plate 11 is in the initial state. When the metering box starts to work in the mining area, the vent 3 needs to be filtered. At this time, the cylinder 10 is turned on to drive the first slider 13 to slide. When the output end of the cylinder 10 extends to the limit position, the filter plate 11 overlaps with the vent 3. The filter plate 11 is installed and can filter dust from the air entering the vent 3. This process can be achieved by the cylinder 10 without manual operation. If the filter plate 11 needs to be cleaned or replaced, it is only necessary to control the output end of the cylinder 10 to retract and drive the first slider 13 to retract synchronously, so that the filter plate 11 can be returned to the initial position for subsequent disassembly or cleaning of the filter plate 11. This can be done through the cylinder 10, and the operation is simple. When the metering box is operating in the mining area, if the filter plate 11 is to be replaced, the box body 1 should be in a closed state to prevent more dust from entering the box body 1. Figures 4 - 7 As shown, a movable assembly 5 is installed in the box body 1, and the movable assembly 5 includes a vertical rod 54 fixedly installed in the box body 1, and the vertical rod 54 is located in the middle position of the box body 1; Two sets of second slide rails 53 are fixedly installed on both sides of the vertical rod 54. The second slide rails 53 are inclined so as to Figure 6Taking the middle view as an example, there are a total of four groups of the second slide rails 53, which are respectively located on the left and right sides of the vertical rod 54. For the convenience of description, the two groups of second slide rails 53 close to the side box 2 on this side are defined as the first unit, and the two groups of second slide rails 53 far from the side box 2 are defined as the second unit, where the second unit is a mirror image of the first unit; Among the two groups of second slide rails 53 in the first unit, one group is arranged obliquely upward, and the other group is arranged obliquely downward. The other ends of the second slide rails 53 are respectively fixedly connected to both sides inside the box body 1. A second slider 52 is slidably installed at a position close to the vertical rod 54 on the second slide rail 53. When the second slider 52 is subjected to an external force, it is adapted to slide on the second slide rail 53; A second spring 55 is fixedly installed at one end of the second slider 52, and the other end of the second spring 55 is fixedly connected to the inner wall of the box body 1. In the initial state, due to the elastic force of the second spring 55, the second sliders 52 at one end far from the inside of the box body 1 are close to each other. After being subjected to an external force, the second sliders 52 on the first unit and the second sliders 52 on the second unit both slide in a direction away from the vertical rod 54; A sealing plate 51 is fixedly installed at one end of the second slider 52 away from the second slide rail 53. The surface of the sealing plate 51 away from the second slider 52 is in contact with the inner wall of the box body 1. When the second slider 52 is in the initial state, each group of sealing plates 51 are in contact with each other to form a complete wind shield. The area of the wind shield is larger than the area of the ventilation opening 3 and is adapted to completely block it. It can be understood that when the second slider 52 is in the initial position, the ventilation opening 3 is blocked by the sealing plate 51. At this time, the box body 1 does not have the effect of ventilation and heat dissipation, and at the same time, a large amount of dust and other impurities are prevented from escaping into the box body 1; Continue to refer to Figures 6 - 7 , an upper baffle 71 is fixedly installed at the upper end inside the box body 1. A first rack 74 is slidably installed on one side of the upper baffle 71. At the same time, a gear 75 is movably connected to the middle position of the upper baffle 71 through a bearing. The first rack 74 meshes with the gear 75. A second rack 76 is also slidably installed at the bottom on one side of the upper baffle 71. The second rack 76 meshes with the gear 75. For details, refer to Figure 6 , in the initial state, the first rack 74 is close to the side box 2, and the second rack 76 is located at a position far from the side box 2. When the gear 75 rotates counterclockwise, the first rack 74 moves in a direction away from the side box 2, and the second rack 76 moves in a direction close to the side box 2 driven by the gear 75; One side of the first rack 74 is fixedly connected to the first slider 13. Thus, when the first slider 13 slides in a direction away from the side box 2, the first rack 74 will synchronously slide in a direction away from the side box 2, thereby driving the gear 75 to rotate counterclockwise, and the rotation of the gear 75 drives the second rack 76 to move in a direction close to the side box 2; On the other side of the first rack 74, a first connecting rod 72 is rotatably installed. The other end of the first connecting rod 72 is rotatably connected to one set of second sliders 52 on the second unit. And a part of the first connecting rod 72 is made of an elastic material and forms an elastic end. Usually, when the first rack 74 moves and drives the first connecting rod 72 to move, the first connecting rod 72 will drive the second slider 52 fixedly connected thereto to move synchronously. If the second slider 52 is restricted and cannot move further, but the first rack 74 continues to move, at this time, the elastic end of the first connecting rod 72 will be stretched. On the contrary, if the first connecting rod 72 is squeezed, it will be compressed, which will not affect the connection between the first rack 74 and the second slider 52. And the first rack 74 will adapt to the change of the connection angle; Similarly, on one side of the second rack 76, a second connecting rod 73 is rotatably connected. The other end of the second connecting rod 73 is rotatably connected to one set of second sliders 52 on the first unit. A part of the second connecting rod 73 is also made of an elastic material. Its installation method, used materials and usage method are the same as those of the first connecting rod 72. The purpose is that when the second rack 76 moves, it can drive the second slider 52 on the first unit to move synchronously; However, the second connecting rod 73 and the first connecting rod 72 can only drive one set of second sliders 52 on the first unit and the second unit to move. Thus, when the gear 75 rotates, it can only drive half of the sealing plates 51 to move. In order to achieve that the gear 75 can drive all the sealing plates 51 to move during the rotation process, continue to refer to Figures 6 - 7 , between two sets of second sliders 52 on the first unit, a telescopic assembly 6 is installed. Similarly, between two sets of second sliders 52 on the second unit, a telescopic assembly 6 is installed. The telescopic assembly 6 is mainly used to drive two sets of second sliders 52 on the first unit and the second unit to move synchronously; Taking two sets of second sliders 52 on the first unit as an example, the telescopic assembly 6 includes a first rod 61 fixedly connected to the second slider 52. On the other set of second sliders 52, a second rod 63 is fixedly installed. A sleeve 62 is sleeved between the first rod 61 and the second rod 63. The inner diameter of the sleeve 62 is larger than the diameters of the first rod 61 and the second rod 63. And at the barrel openings on both sides of the sleeve 62, limit steps are provided. At the same time, at the position where the first rod 61 and the second rod 63 are close to each other, a protruding end is provided. The diameter of the protruding end is larger than the diameters of the first rod 61 and the second rod 63 and is adapted to the inner diameter of the sleeve 62. However, the protruding end cannot cross the limit step. It can be understood that the first rod 61 and the second rod 63 at most extend to the barrel opening position of the sleeve 62. At this time, the protruding end is located at the limit step; In the initial state, when the metering box has not started to be used, refer to Figure 6, at this time, the filter plate 11 is located at a position away from the ventilation opening 3, and the sealing plates 51 approach each other to block the ventilation opening 3. At this time, the box body 1 does not have the effect of ventilation and heat dissipation. However, at this time, a part of the filter plate 11 is located inside the side box 2, which is convenient for the staff to clean or replace it. When the metering box is applied to the mining area, during the process of cleaning the filter plate 11, the ventilation opening 3 is in a closed state, preventing dust from entering the box body 1; When the metering box needs to start working, the cylinder 10 needs to be started to install the filter plate 11. However, during the movement of the first slider 13, it drives the first rack 74 to move away from the side box 2. The first rack 74 drives the gear 75 to rotate, and the rotation of the gear 75 drives the second rack 76 to move towards the side box 2. During the movement of the first rack 74, it drives the second slider 52 on the second unit to move. Due to the connection relationship of the telescopic assembly 6, the second slider 52 on the second unit will move synchronously. At the same time, during the movement of the second rack 76, it drives the second slider 52 on the first unit to move synchronously; Driven by the first rack 74, the second slider 52 on the second unit moves away from the side box 2, and the two sealing plates 51 on this side also move away from the side box 2 and away from the ventilation opening 3. During this process, the first rod 61 and the second rod 63 extend out of the sleeve 62 synchronously, adapting to the mutual separation of the two second sliders 52. At the same time, the upper first connecting rod 72 adapts to the changes in the angle and position between the second slider 52 and the first rack 74; At the same time, the second slider 52 on the first unit also moves towards the side box 2, and the two sealing plates 51 on this side move away from the ventilation opening 3 and no longer block it. When the output end of the cylinder 10 extends to the limit position, at this time, it means that the filter plate 11 has reached the working position, and at this time, the sealing plates 51 have completely moved out of the ventilation opening 3. Specifically, reference can be made to Figure 8 , this figure describes the state of the metering box when it is working. The filter plate 11 is located at the ventilation opening 3. While the box body 1 has the effect of ventilation and heat dissipation, it can filter the dust and particulate impurities in the air; When the filter plate 11 needs to be disassembled or cleaned, at this time, the staff needs to first restore the filter plate 11 to the initial position, so the cylinder 10 needs to be closed. The output end of the cylinder 10 retracts and drives the first slider 13 to slide towards the side box 2. When the first slider 13 slides towards the side box 2, the first rack 74 slides towards the side box 2, and the second rack 76 slides away from the side box 2. At the same time, the first connecting rod 72 drives the second slider 52 on the second unit to slide towards the side box 2, and the second connecting rod 73 drives the second slider 52 on the first unit to slide away from the side box 2. The sealing plates 51 approach each other and close the ventilation opening 3; In summary, when the filter plate 11 is in the working state, the metering box has the effect of ventilation and heat dissipation, and at the same time, the filter plate 11 filters the dust in the air. When the filter plate 11 needs to be disassembled, the sealing plate 51 closes the ventilation opening 3, preventing dust and other impurities from entering the box body 1 during the replacement process of the filter plate 11. Especially when the metering box is used in a mining area, the filter plate 11 needs to be replaced or cleaned frequently. During the cleaning process, the box body 1 is in a closed state, effectively preventing a large amount of dust from escaping into the box body 1.

[0023] Embodiment 3: In non-high-temperature weather, the outdoor temperature has a certain cooling effect on the metering box. At this time, the metering box does not require a large ventilation opening 3 for ventilation and heat dissipation. While reducing the size of the ventilation opening 3, it can also reduce the adhesion of dust to the filter plate 11 to a certain extent. However, in the above embodiments, the moving distance of the sealing plate 51 cannot be adjusted. Therefore, after the sealing plate 51 spreads, it will always completely disengage from the ventilation opening 3, and the size of the air intake volume of the ventilation opening 3 of the metering box cannot be adjusted; To solve this problem, as Figures 6 - 7 shown, in this embodiment, first electromagnets can be arranged at both ends of the sleeve 62 near the limiting step, and second electromagnets can be arranged at the positions of the first rod 61 and the second rod 63 near the protruding ends. The first electromagnet and the second electromagnet repel each other with the same polarity. If the position of the sealing plate 51 needs to be adjusted, the staff only needs to control the first electromagnet and the second electromagnet to be energized before starting the filter plate 11. When the first rod 61 and the second rod 63 move driven by the second slider 52, due to the repulsion between the electromagnets, the second electromagnet cannot cross the first electromagnet. Therefore, the extended lengths of the first rod 61 and the second rod 63 are limited, and further the distance between the second sliders 52 is limited. Compared with the unrestricted state, the first sealing plate 51 can move to a position away from the ventilation opening 3 driven by the second slider 52; After the first rod 61 and the second rod 63 are restricted, the distance at which the second sliders 52 move away from each other is relatively short. When the sealing plates 51 move away from each other to a certain distance, the first rod 61 and the second rod 63 cannot continue to extend. However, at this time, the first slider 13 continues to move, and the first connecting rod 72 and the second connecting rod 73 are stretched to adapt to the continuous movement of the first rack 74 and the second rack 76. Thus, the diffusion distance of the sealing plate 51 is adjusted, and the size of the air intake volume of the ventilation opening 3 is adjusted; Furthermore, in this embodiment, the staff can pre-adjust the positions of the first electromagnet and the second electromagnet. The closer the first electromagnet and the second electromagnet are, the shorter the diffusion distance of the sealing plate 51. And in the box body 1, a PLC control system is provided to facilitate the staff to control the energization and de-energization of the first electromagnet and the second electromagnet.

[0024] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A metering box with a ventilation and heat dissipation structure, characterized in that: include: A box (1), wherein at least two sets of electric meters (4) are installed in the box (1); A side box (2), the side box (2) being fixedly mounted on one side of the box body (1), a sealing opening (21) being provided at an upper end of one side of the side box (2), and a wooden plug being provided at the sealing opening (21); A vent (3), the vent (3) being provided on the box body (1), the vent (3) comprising an air inlet and an air outlet, a partition being provided between the air inlet and the air outlet, a fan being provided at the air outlet, and the fan being fixedly connected to the outer surface of the box body (1); An adjustment component (7), the adjustment component (7) being installed at the upper end of the box body (1), the adjustment component (7) comprising: A first slide rail (77), the first slide rail (77) being fixedly mounted on an upper end of the box body (1); A first sliding block (13), the first sliding block (13) being slidably mounted on one side of the first sliding rail (77), and a support rod (12) being fixedly mounted on the bottom of the first sliding block (13); a first spring (78), the first spring (78) being fixedly mounted on one side of the inner wall of the box body (1), the other side of the first spring (78) being fixedly connected to the first sliding block (13); A filter plate (11), the filter plate (11) is fixedly mounted on the bottom of the support rod (12), and a plurality of groups of filter holes are formed on the filter plate (11).

2. A metering box with a ventilation and heat dissipation structure according to claim 1, characterized in that: A cylinder (10) is fixedly mounted on the upper end of the box body (1), and one side of the output end of the cylinder (10) is fixedly connected to the first sliding block (13).

3. A metering box with a ventilation and heat dissipation structure according to claim 2, characterized in that: A movable assembly (5) is installed in the box body (1), and the movable assembly (5) comprises a vertical rod (54) fixedly installed in the box body (1), and two groups of second slide rails (53) are fixedly installed on both sides of the vertical rod (54), two groups of the second slide rails (53) are arranged to be inclined upward, and the other second slide rails (53) are arranged to be inclined downward, and the other ends of the second slide rails (53) are respectively fixedly connected to the two sides of the box body (1), the two groups of the second slide rails (53) close to the side box (2) are defined as the first unit, and the two groups of the second slide rails (53) away from the side box (2) are defined as the second unit. The second slide rail (53) is a second unit, the second unit is a mirror image of the first unit, a second slider (52) is slidably mounted on the second slide rail (53) at a position close to the vertical rod (54), a sealing plate (51) is fixedly mounted on one end of the second slider (52) away from the second slide rail (53), a surface of the sealing plate (51) away from the second slider (52) is in contact with the inner wall of the box body (1), a second spring (55) is fixedly mounted on one end of the second slider (52), and the other end of the second spring (55) is fixedly connected to the inner wall of the box body (1).

4. The metering box with ventilation and heat dissipation structure according to claim 3 is characterized in that: An upper baffle (71) is fixedly mounted on the upper end of the box body (1); a first rack (74) is slidably mounted on one side of the upper baffle (71); a gear (75) is movably connected to the middle of the upper baffle (71) via a bearing; the first rack (74) is meshed with the gear (75); a second rack (76) is slidably mounted on the bottom of one side of the upper baffle (71); the second rack (76) is meshed with the gear (75); and one side of the first rack (74) is fixedly connected to the first slider (13).

5. The metering box with ventilation and heat dissipation structure according to claim 4 is characterized in that: A first connecting rod (72) is rotatably mounted on the other side of the first rack (74), and the other end of the first connecting rod (72) is rotatably connected to one group of the second sliders (52) of the second unit; a second connecting rod (73) is rotatably connected to one side of the second rack (76), and the other end of the second connecting rod (73) is rotatably connected to one group of the second sliders (52) of the first unit.

6. The metering box with ventilation and heat dissipation structure according to claim 5, characterized in that: Part of the first connecting rod (72) is made of elastic material and forms an elastic end, and part of the second connecting rod (73) is also made of elastic material.

7. The metering box with ventilation and heat dissipation structure according to claim 6, characterized in that: A telescopic assembly (6) is installed between the two groups of the second sliders (52) on the first unit, and the telescopic assembly (6) is also installed between the two groups of the second sliders (52) on the second unit. A first rod (61) and a second rod (63) are fixedly installed on the two groups of the second sliders (52) on the first unit, respectively. A sleeve (62) is sleeved between the first rod (61) and the second rod (63). The inner diameter of the sleeve (62) is larger than the diameters of the first rod (61) and the second rod (63). Limiting steps are provided on both sides of the sleeve (62). A protruding end is provided at a position where the first rod (61) and the second rod (63) are close to each other. The diameter of the protruding end is larger than the diameters of the first rod (61) and the second rod (63) and is adapted to the inner diameter of the sleeve (62).

8. The metering box with ventilation and heat dissipation structure according to claim 7, characterized in that: A first electromagnet is provided at both ends of the sleeve (62) near the position limiting step, and a second electromagnet is provided at the first rod (61) and the second rod (63) near the protruding end, and the first electromagnet and the second electromagnet are of the same polarity and repel each other.

9. A metering box with a ventilation and heat dissipation structure according to claim 8, characterized in that: The filter plate (11) consists of an outer frame and a plate body, the outer frame is fixedly connected to the support rod (12), the plate body is connected to the outer frame by bolts, and the filter holes are opened on the plate body.

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