Gas guard for mapping equipment

Abstract

The application relates to the technical field of surveying equipment protection, and discloses a gas protection device for surveying equipment, which comprises a transparent cover body and a base, and the transparent cover body is mounted on the top of the base. The gas protection device for surveying equipment is provided with a HEPA filter layer, an activated carbon filter layer and a hydrophobic membrane filter layer. When air is exchanged, the HEPA filter layer can filter the particulate impurities in the gas, the activated carbon filter layer can filter the chemical gas in the gas, and finally, the hydrophobic membrane filter layer can prevent water vapor from flowing into the transparent cover body. Through the three-layer filter structure, the odor adsorption, particle filtration and waterproof triple protection can be realized. Meanwhile, through the detachable design of the sliding plate and the sliding groove, the filter layer can be quickly replaced, the maintenance cost is low, and under the action of the conical hopper and the exhaust fan, an air exchange system can be formed, the internal air pressure is slightly higher than the external air pressure, and the external pollution can be prevented from flowing in.

Description

Technical Field

[0001] This application relates to the field of surveying equipment protection technology, specifically to a gas protection device for surveying equipment. Background Technology

[0002] Current protective technologies for surveying equipment in harsh environments mainly focus on two methods: physical isolation and simple filtration. Physical isolation blocks external pollutants through a sealed shell, but it cannot meet the internal gas exchange needs of the equipment. Simple filtration uses a single filter material, which is difficult to cope with complex and ever-changing environmental conditions.

[0003] Existing technical solutions include three types: integrated metal protective cover, fixed fiber filter and chemical coating protection. The integrated metal protective cover achieves physical isolation through a fully enclosed structure, but this makes it difficult for the equipment to dissipate heat. The fixed fiber filter can intercept particulate matter, but it cannot remove chemical gases and is prone to clogging. The chemical coating protection can resist specific corrosive media, but the entire system needs to be replaced after the coating ages. All three solutions have the drawbacks of being non-adjustable and having high maintenance costs.

[0004] Existing technologies cannot achieve rapid replacement and combination of filter media, making it difficult to adapt to changing operating environments. The integral design leads to the need for complete scrapping when local damage occurs, and the lack of modular structure results in low maintenance efficiency. To solve the above problems, a gas protection device for surveying equipment is proposed. Utility Model Content

[0005] In view of the shortcomings of the prior art, this application provides a gas protection device for surveying equipment, which has the advantages of multiple protection structures and solves the problem that the device is difficult to adapt to the changing working environment.

[0006] To achieve the above objectives, this application provides the following technical solution: a gas protection device for surveying equipment, comprising a transparent cover and a base, wherein the transparent cover is installed and connected to the top of the base, and a plurality of support rods are fixedly connected to the top of the base, and the surveying equipment body is fixedly connected to the top of the support rods;

[0007] A conical hopper is fixedly connected to the top of the transparent cover, a filter box is fixedly connected to the top of the conical hopper, and an air inlet pipe is fixedly connected to the top of the filter box. Three sliding grooves are formed on the side of the filter box, and sliding plates are installed and connected inside each of the three sliding grooves. A HEPA filter layer, an activated carbon filter layer, and a hydrophobic membrane filter layer are respectively fixedly connected inside the three sliding plates. An annular groove is formed on the inner side of each sliding groove, and the HEPA filter layer, activated carbon filter layer, and hydrophobic membrane filter layer are respectively located within the three annular grooves. The positions of the HEPA filter layer, activated carbon filter layer, and hydrophobic membrane filter layer are: HEPA filter layer at the top, activated carbon filter layer in the middle, and hydrophobic membrane filter layer at the bottom. An installation groove is formed on the top of the base, and an installation ring is fixedly connected to the bottom of the transparent cover, engaging with the installation groove. An exhaust pipe is fixedly connected to the bottom of the base, and an exhaust fan is installed inside the exhaust pipe.

[0008] The above-described solution, by incorporating a HEPA filter layer, an activated carbon filter layer, and a hydrophobic membrane filter layer, achieves three-layer filtration during air exchange. The HEPA filter layer filters particulate impurities, the activated carbon filter layer filters chemical gases, and the hydrophobic membrane filter layer prevents moisture from flowing into the transparent enclosure. This three-layer filtration structure provides triple protection: odor adsorption, particulate filtration, and waterproofing. This makes the device suitable for harsh environments such as outdoor areas and mines. Furthermore, the detachable design of the sliding plate and sliding groove allows for quick filter layer replacement, resulting in low maintenance costs. Additionally, the conical hopper and exhaust fan create a ventilation system with a slightly higher internal pressure than the external pressure, preventing external contaminants from flowing in.

[0009] Furthermore, a second movable groove is provided inside the sliding plate, and a positioning hole is provided on the inner side of the sliding groove.

[0010] The above solution provides storage space for the second metal spring, the second movable plate, and the second positioning block by setting up a second movable slot.

[0011] Furthermore, a second metal spring is fixedly connected to the inner side of the second movable groove, a second movable plate is fixedly connected to one end of the second metal spring, a second positioning block is fixedly connected to the side of the second movable plate, and the second positioning block is engaged in the positioning hole.

[0012] The above solution provides an elastic locking force by setting a first metal spring, which allows the second positioning block to be positioned within the hole during the installation of the sliding plate, thus stabilizing the position of the sliding plate.

[0013] Furthermore, a second sealing groove is fixedly connected to the side of the sliding groove, and a second sealing protrusion is fixedly connected to the side of the sliding plate, with the second sealing protrusion engaging within the second sealing groove.

[0014] By using the above method, the second sealing protrusion can be engaged with the second sealing recess, which can enhance the sealing between the sliding plate and the filter box and prevent air leakage.

[0015] Furthermore, the top of the mounting ring is fixedly connected to multiple positioning frames, and the surface of the base is fixedly connected to multiple shrink boxes, with a first movable groove opened inside the shrink box.

[0016] The above solution provides storage space for the first metal spring, the first movable plate, and the first positioning block by setting up a shrink box and a first movable slot.

[0017] Furthermore, a first metal spring is fixedly connected to the inner side of the first movable slot, a first movable plate is fixedly connected to one end of the first metal spring, a first positioning block is fixedly connected to the side of the first movable plate, and the first positioning block is engaged in the positioning frame.

[0018] The above scheme provides an elastic locking force by setting a first metal spring, which allows the first positioning block to be positioned within the frame.

[0019] Furthermore, a first sealing recess is fixedly connected to the bottom of the mounting ring, and a first sealing protrusion is fixedly connected to the bottom of the mounting groove, with the first sealing protrusion engaging within the first sealing recess.

[0020] By using the above method, the sealing of the connection between the base and the cover can be ensured by the first sealing protrusion being engaged with the first sealing recess.

[0021] Furthermore, a top filter frame is threadedly connected to the surface of the air intake pipe, a bottom barrier frame is threadedly connected to the bottom end of the exhaust pipe, a handle is fixedly connected to the side of the sliding plate, and multiple support feet are fixedly connected to the bottom of the base.

[0022] The above solution allows for the pre-filtering of large particles entering the transparent enclosure by setting a top filter frame, while the bottom barrier frame prevents external pollutants from flowing back into the exhaust port.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] 1. This gas protection device for surveying equipment, by setting up a HEPA filter layer, an activated carbon filter layer, and a hydrophobic membrane filter layer, can filter particulate impurities in the gas during ventilation. The activated carbon filter layer can filter chemical gases in the gas. Finally, the hydrophobic membrane filter layer can prevent water vapor from flowing into the transparent enclosure. Through the three-layer filtration structure, it can achieve triple protection of odor adsorption, particulate filtration, and waterproofing. At the same time, the detachable design of the sliding plate and sliding groove allows for quick replacement of the filter layer, resulting in low maintenance costs. In addition, the cone-shaped bucket and exhaust fan can form a ventilation system with the internal air pressure slightly higher than the external pressure, which can prevent external pollution from flowing in.

[0025] 2. The gas protection device for surveying equipment enhances the sealing between the sliding plate and the filter box by engaging the second sealing protrusion with the second sealing recess, preventing gas leakage. It also ensures the sealing at the connection between the base and the cover by engaging the first sealing protrusion with the first sealing recess. Through multiple sealing structures, it prevents gas leakage and contaminant intrusion. Attached Figure Description

[0026] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0027] Figure 2 This is a schematic diagram of the structure in frontal cross-section in this application;

[0028] Figure 3 This is a schematic diagram of the transparent cover structure in this application;

[0029] Figure 4 This is a schematic diagram of the structure of the HEPA filter layer in this application;

[0030] Figure 5 for Figure 1 A schematic diagram of the structure at point A in the middle, magnified cross-section.

[0031] Figure 6 for Figure 2 A structural schematic diagram of the enlarged cross-section at point B.

[0032] In the picture:

[0033] 1. Transparent cover; 101. Filter box; 102. Sliding groove; 103. Second sealing groove; 104. Positioning hole; 105. Mounting ring; 106. Positioning frame; 107. First sealing groove; 108. Air inlet pipe; 109. Annular groove; 1010. Conical hopper;

[0034] 2. Base; 201. Support rod; 202. Exhaust pipe; 203. Mounting slot; 204. Shrink box; 205. First sealing protrusion; 206. First movable slot; 207. First metal spring; 208. First movable plate; 209. First positioning block; 2010. Support foot; 2011. Exhaust fan;

[0035] 3. The surveying equipment itself;

[0036] 4. Top filter box;

[0037] 5. Bottom barrier frame;

[0038] 6. Sliding plate; 601. Handle; 602. Second sealing protrusion; 603. Second movable groove; 604. Second metal spring; 605. Second movable plate; 606. Second positioning block;

[0039] 7. HEPA filter layer;

[0040] 8. Activated carbon filter layer;

[0041] 9. Hydrophobic membrane filter layer. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] Please see Figure 1 , Figure 3 and Figure 4 The gas protection device for surveying equipment in this embodiment includes a transparent cover 1 and a base 2. The transparent cover 1 is installed and connected to the top of the base 2. A plurality of support rods 201 are fixedly connected to the top of the base 2, and the surveying equipment body 3 is fixedly connected to the top of the support rods 201.

[0044] A cone-shaped hopper 1010 is fixedly connected to the top of the transparent cover 1. A filter box 101 is fixedly connected to the top of the cone-shaped hopper 1010. An air inlet pipe 108 is fixedly connected to the top of the filter box 101. Three sliding grooves 102 are opened on the side of the filter box 101. A sliding plate 6 is installed and connected inside each of the three sliding grooves 102. A HEPA filter layer 7, an activated carbon filter layer 8, and a hydrophobic membrane filter layer 9 are fixedly connected inside the three sliding plates 6, respectively. An annular groove 109 is opened on the inner side of the sliding groove 102. The HEPA filter layer 7, the activated carbon filter layer 8, and the hydrophobic membrane filter layer 9 are respectively located in the three annular grooves 109. The positions of the HEPA filter layer 7 at the top, the activated carbon filter layer 8 in the middle, and the hydrophobic membrane filter layer 9 at the bottom are: HEPA filter layer 7 at the top, activated carbon filter layer 8 in the middle, and hydrophobic membrane filter layer 9 at the bottom. An installation groove 203 is opened on the top of the base 2. An installation ring 105 is fixedly connected to the bottom of the transparent cover 1. The base 2 is fixedly connected to the bottom of the base 2 and the mounting slot 203. The exhaust pipe 202 is installed inside the exhaust pipe 202 and the exhaust fan 2011 is installed inside. By setting up a HEPA filter layer 7, an activated carbon filter layer 8 and a hydrophobic membrane filter layer 9, during ventilation, the HEPA filter layer 7 can filter particulate impurities in the gas, the activated carbon filter layer 8 can filter chemical gases in the gas, and finally the hydrophobic membrane filter layer 9 can prevent water vapor from flowing into the transparent cover 1. Through the three-layer filtration structure, odor adsorption, particulate filtration and waterproof triple protection can be achieved, making the device suitable for harsh environments such as the field and mines. At the same time, the detachable design of the sliding plate 6 and the sliding groove 102 allows for quick replacement of filter layers and low maintenance costs. In addition, under the action of the conical bucket 1010 and the exhaust fan 2011, a ventilation system can be formed, and the internal air pressure is slightly higher than the external pressure, which can prevent external pollution from flowing in.

[0045] Please see Figure 5The sliding plate 6 has a second movable groove 603 inside, and a positioning hole 104 is provided on the inner side of the sliding groove 102. By setting the second movable groove 603, storage space can be provided for the second metal spring 604, the second movable plate 605, and the second positioning block 606. The second metal spring 604 is fixedly connected to the inner side of the second movable groove 603. One end of the second metal spring 604 is fixedly connected to the second movable plate 605. The second positioning block 606 is fixedly connected to the side of the second movable plate 605. The second positioning block 606 is engaged in the positioning hole 104. The first metal spring 207 provides elastic locking force. When installing the sliding plate 6, the second positioning block 606 can be positioned in the positioning hole 104 to stabilize the position of the sliding plate 6. The sliding groove 102 is fixedly connected to the side of the second sealing groove 103, and the sliding plate 6 is fixedly connected to the side of the second sealing groove 103. The second sealing groove 103 is engaged with the second sealing groove 103. By engaging the second sealing groove 103 with the second sealing groove 103, the sealing between the sliding plate 6 and the filter box 101 can be enhanced to prevent air leakage.

[0046] Please see Figure 3 and Figure 6 Multiple positioning frames 106 are fixedly connected to the top of the mounting ring 105, and multiple shrink boxes 204 are fixedly connected to the surface of the base 2. Each shrink box 204 has a first movable groove 206 inside. By setting the shrink box 204 and the first movable groove 206, storage space can be provided for the first metal spring 207, the first movable plate 208, and the first positioning block 209. The first metal spring 207 is fixedly connected to the inner side of the first movable groove 206, and the first movable plate 208 is fixedly connected to one end of the first metal spring 207. The first movable plate 208 is fixedly connected to the side of the first movable plate 208. The first positioning block 209 is snapped into the positioning frame 106. By setting the first metal spring 207, an elastic locking force can be provided, so that the first positioning block 209 can be positioned within the positioning frame 106. The bottom of the mounting ring 105 is fixedly connected to the first sealing recess 107. The bottom of the mounting groove 203 is fixedly connected to the first sealing protrusion 205. The first sealing protrusion 205 is snapped into the first sealing recess 107. By the first sealing protrusion 205 being snapped into the first sealing recess 107, the sealing of the connection between the base 2 and the cover can be ensured.

[0047] Please see Figure 2 , Figure 3 and Figure 4The intake pipe 108 is threaded with a top filter frame 4, the exhaust pipe 202 is threaded with a bottom barrier frame 5, the sliding plate 6 is fixedly connected to a handle 601 on the side, and the base 2 is fixedly connected to multiple support feet 2010 at the bottom. By setting the top filter frame 4, large particles can be pre-filtered from flowing into the transparent cover 1. By using the bottom barrier frame 5, external pollutants can be prevented from flowing back into the exhaust port.

[0048] In this embodiment, by setting a HEPA filter layer 7, an activated carbon filter layer 8, and a hydrophobic membrane filter layer 9, during ventilation, the HEPA filter layer 7 can filter particulate impurities in the gas, the activated carbon filter layer 8 can filter chemical gases in the gas, and finally, the hydrophobic membrane filter layer 9 can prevent water vapor from flowing into the transparent cover 1. Through the three-layer filtration structure, odor adsorption, particulate filtration, and waterproof protection can be achieved, making the device suitable for harsh environments such as the field and mines. Under the action of the conical bucket 1010 and the exhaust fan 2011, a ventilation system can be formed, with the internal air pressure slightly higher than the external pressure, which can prevent external pollution from flowing in. Through multiple sealing structures, gas leakage and pollutant intrusion can be prevented. By setting a top filter frame 4, large particles can be pre-filtered to flow into the transparent cover 1, and the bottom barrier frame 5 can prevent external pollutants from flowing back into the exhaust port.

[0049] The working principle of the above embodiment is as follows: When it is necessary to protect the main body 3 of the surveying equipment during use, people move the first movable plate 208, and then install the transparent cover 1 on the top of the base 2, so that the mounting ring 105 is inserted into the mounting groove 203, and the first sealing protrusion 205 is embedded with the first sealing concave strip 107. After the insertion is completed, the first movable plate 208 is released. Under the action of the first metal spring 207, the first positioning block 209 can be inserted into the positioning frame 106, thereby stabilizing the position of the mounting ring 105. After stabilization, people move the second movable plate 605 and slide the three sliding plates 6 into the sliding groove 102 in sequence. After the sliding is completed, the second movable plate 605 is released. Under the action of the second metal spring 604, the second positioning block 606 can be inserted into the positioning hole 104, thereby stabilizing the position of the sliding plate 6. After stabilization, the main body 3 of the surveying equipment can be physically protected under the action of the transparent cover 1.

[0050] When the exhaust fan 2011 is running, it can ventilate the air inside the transparent enclosure 1. Under the action of the HEPA filter layer 7, particulate impurities in the gas can be filtered. Under the action of the activated carbon filter layer 8, chemical gases in the gas can be filtered. Finally, under the action of the hydrophobic membrane filter layer 9, water vapor can be prevented from flowing into the transparent enclosure 1. Through the three-layer filtration structure, odor adsorption, particulate filtration and waterproof triple protection can be achieved. At the same time, the detachable design of the sliding plate 6 and the sliding groove 102 allows for quick replacement of filter layers, resulting in low maintenance costs. In addition, under the action of the conical bucket 1010 and the exhaust fan 2011, a ventilation system can be formed, with the internal air pressure slightly higher than the external pressure, which can prevent external pollution from flowing in.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0052] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas protection device for surveying equipment, comprising a transparent cover (1) and a base (2), characterised in that: The transparent cover (1) is installed on the top of the base (2), and a plurality of support rods (201) are fixedly connected to the top of the base (2). The top of the support rods (201) is fixedly connected to the surveying equipment body (3). The top of the transparent cover (1) is fixedly connected to a conical bucket (1010), the top of the conical bucket (1010) is fixedly connected to a filter box (101), the top of the filter box (101) is fixedly connected to an air inlet pipe (108), the side of the filter box (101) is provided with three sliding grooves (102), each of the three sliding grooves (102) is installed with a sliding plate (6), the three sliding plates (6) are respectively fixedly connected with a HEPA filter layer (7), an activated carbon filter layer (8) and a hydrophobic membrane filter layer (9), the side of the sliding groove (102) is provided with an annular groove (109), the HEPA filter layer (7) and the activated carbon filter layer (8) are respectively fixedly connected to the filter box (101). (8) and the hydrophobic membrane filter layer (9) are respectively located in three annular grooves (109). The positions of the HEPA filter layer (7), the activated carbon filter layer (8) and the hydrophobic membrane filter layer (9) are respectively: the HEPA filter layer (7) is at the top, the activated carbon filter layer (8) is in the middle and the hydrophobic membrane filter layer (9) is at the bottom. The base (2) has an installation groove (203) at the top. The bottom of the transparent cover (1) is fixedly connected to an installation ring (105). The installation ring (105) is snapped into the installation groove (203). The bottom of the base (2) is fixedly connected to an exhaust pipe (202). An exhaust fan (2011) is installed inside the exhaust pipe (202).

2. A gas guard for a surveying apparatus according to claim 1, characterised in that: The sliding plate (6) has a second movable groove (603) inside, and the sliding groove (102) has a positioning hole (104) on its inner side.

3. A gas guard for a surveying apparatus according to claim 2, characterised in that: The second movable groove (603) has a second metal spring (604) fixedly connected to its inner side. The second metal spring (604) has a second movable plate (605) fixedly connected to one end. The second movable plate (605) has a second positioning block (606) fixedly connected to its side. The second positioning block (606) is engaged in the positioning hole (104).

4. The gas protection device for surveying equipment according to claim 1, characterized in that: The sliding groove (102) is fixedly connected to a second sealing groove (103) on its side, and the sliding plate (6) is fixedly connected to a second sealing protrusion (602) on its side. The second sealing protrusion (602) is engaged in the second sealing groove (103).

5. The gas protection device for surveying equipment according to claim 1, characterized in that: The top of the mounting ring (105) is fixedly connected to multiple positioning frames (106), and the surface of the base (2) is fixedly connected to multiple shrink boxes (204). The shrink box (204) has a first movable groove (206) inside.

6. A gas guard for a surveying apparatus according to claim 5, characterised in that: The first movable slot (206) has a first metal spring (207) fixedly connected to its inner side. One end of the first metal spring (207) is fixedly connected to a first movable plate (208). The side of the first movable plate (208) is fixedly connected to a first positioning block (209). The first positioning block (209) is snapped into the positioning frame (106).

7. The gas guard for a mapping device of claim 1, wherein: The bottom of the mounting ring (105) is fixedly connected to a first sealing groove (107), and the bottom of the mounting groove (203) is fixedly connected to a first sealing protrusion (205), which is engaged in the first sealing groove (107).

8. The gas guard for a mapping device of claim 1, wherein: The intake pipe (108) is threaded with a top filter frame (4), the exhaust pipe (202) is threaded with a bottom barrier frame (5), the sliding plate (6) is fixedly connected with a handle (601) on its side, and the base (2) is fixedly connected with multiple support feet (2010) at its bottom.

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