Soil layer profile protection device for land investigation

Abstract

The invention relates to the field of land surveying and surveying equipment, and discloses a soil layer profile protection device for land investigating.The soil layer profile protection device comprises a positioning box body and a winding box body, the positioning box body and the winding box body are connected through a supporting assembly, the supporting assembly can vertically slide on the positioning box body, and a protection top film is wound in the winding box body; two sets of positioning supports are rotationally connected into the positioning box body, connecting ropes are arranged at the two corners of the free end of the protective top film and used for being hung on the positioning supports, and the supporting assembly is located below the protective top film and can stretch out and draw back. The soil layer section can be protected, and investigators can freely move in the pit body and observe the soil layer section conveniently.

Description

Technical Field

[0001] The present application relates to the field of land surveying and investigation equipment, and in particular to a soil layer profile protection device for land investigation. Background Art

[0002] Land profile survey is a basic work to identify soil types, investigate and obtain soil fertility characteristics such as effective soil layer thickness, tillage layer thickness, profile texture configuration, groundwater depth, barrier layer and its depth, and understand the impact of human activities (including tillage, fertilization, etc.) on soil quality. When digging, generally dig a soil profile of 2m×1.0m×1.5m in length×width×depth. If the soil layer is thin, dig to the parent material layer. The excavated topsoil and heart soil are placed on both sides. After the pit is dug, the sunny pit wall is vertically flattened for easy observation.

[0003] In the related art, a Chinese invention patent with the authorization publication number CN116380534B discloses a soil profile protection device for field soil investigation, which includes a fixed plug component, a profile protection component and a retractable component. A protective film is wound inside the retractable component. The fixed plug component is fixed to the ground on one side of the pit mouth, and the profile protection component is pushed downward to enter the pit body to block and protect the soil profile. At the same time, the protective film is pulled out from the inside of the retractable component and covered on the pit mouth, effectively preventing external objects and rainwater from entering the pit body. After entering the pit body, in order to prevent the external high temperature and sunlight from affecting the humidity of the soil profile and the investigation environment, the investigators can cover the opening of the pit body with a protective film inside the pit body, and then open the profile protection component to open the soil profile for investigation.

[0004] With regard to the above-mentioned related technologies, the inventors found that the excavation depth of the pit is generally about one meter. If the investigators cover the pit with a protective film during the investigation as stated in the plan, they will always need to keep their bodies bent while moving in the pit, which is quite inconvenient. In addition, although the protective film can prevent external high temperature and sunlight, it will also cause poor air circulation in the pit, excessive temperature and poor light, which will also affect the observation and sampling work of the investigators. Summary of the invention

[0005] In order to protect the soil layer profile and facilitate investigators to move freely in the pit and observe the soil layer profile, the present application provides a soil layer profile protection device for land investigation.

[0006] The soil layer profile protection device for land survey provided in this application adopts the following technical solution: A soil profile protection device for land survey comprises a positioning box and a winding box, wherein the positioning box and the winding box are connected via a support assembly, wherein the support assembly can slide vertically on the positioning box, wherein a protective top film is wound inside the winding box, wherein two groups of positioning brackets are rotatably connected inside the positioning box, wherein connecting ropes are provided at both corners of the free end of the protective top film, wherein the connecting ropes are used for hanging on the positioning brackets, wherein the support assembly is located below the protective top film, and wherein the support assembly is retractable.

[0007] By adopting the above technical solution, when protecting the soil layer profile, the positioning box is fixed to one end of the pit surface close to the soil layer profile, and then the height of the winding box is adjusted by the support assembly, and the winding box is adjusted to be located on the ground, and then the two connecting ropes of the protective top film are hung on the positioning bracket, and the winding box is moved away from the positioning box, so that the protective top film is unfolded, and the winding box is moved to the other end of the surface of the pit opening. At this time, the protective top film covers the opening above the pit body, and the protection of the soil layer profile in the pit body is completed; When investigators need to enter the pit for investigation, the height of the winding box can be raised through the support assembly to keep it away from the ground, thereby raising the position of the protective top film, making it easier for investigators to enter the pit and move freely in an upright position inside the pit, while preventing external high temperature sunlight, maintaining air circulation inside the pit, and ensuring light exposure inside the pit, making it easier for investigators to observe the soil profile.

[0008] Optionally, the positioning box is vertically arranged, and an adjusting screw is vertically rotatably connected to the positioning box. A sliding plate is threadedly connected to the adjusting screw. The adjusting screw is used to drive the sliding plate to slide vertically. One end of the support assembly is located on the sliding plate, and an adjusting handwheel is fixedly connected to the top of the adjusting screw.

[0009] By adopting the above technical solution, when it is necessary to adjust the height of the protective top film, the adjustment hand wheel is turned to drive the sliding plate to slide up and down, the sliding plate drives the supporting assembly to slide up and down, and the supporting assembly drives the winding box to slide up and down, so that the distance between the protective top film and the opening of the pit body can be easily adjusted, so that the protective top film can cover the surface of the pit body opening, and can also be laid away from the pit body, so that a certain distance is maintained between the protective top film and the pit body, so as to facilitate investigators to enter the pit body and move freely in the pit body, and the operation is simple and convenient.

[0010] Optionally, the winding box is horizontally arranged, and a winding roller is rotatably connected inside the winding box, and the axial direction of the winding roller is parallel to the length direction of the winding box. The protective top film is wound on the winding roller, and two support columns are rotatably connected at both ends of the interior of the winding box. Protective side films are wound on the support columns, and two fixing bolts are threadedly connected to the winding box, and the two fixing bolts are respectively used to lock the two support columns.

[0011] By adopting the above technical scheme, when the protective top film is laid close to the surface of the pit opening, the two support columns are stored in the winding box; when the protective top film is laid away from the ground, the support columns can be rotated out of the winding box to a vertical state, and then the connecting ropes of the protective side films are hung on the positioning bracket, and during the movement of the winding box, the two protective side films are unfolded, thereby providing multi-directional protection for the space above the pit body and improving the sun and rain protection effects; at the same time, the support columns are inserted into the ground and then locked by fixing bolts, which can support the winding box and improve the stability of the winding box, thereby improving the stability of the laying of the protective top film and the protective side film.

[0012] Optionally, a storage groove is provided on the positioning box, and the two groups of positioning brackets are rotated in the storage groove. The positioning bracket includes a first positioning rod and a second positioning rod. The top end of the first positioning rod rotates in the storage groove, and the bottom end of the second positioning rod is rotatably connected to the first positioning rod. The first positioning rod is retractable, and a connecting rod is arranged between the first positioning rod and the second positioning rod. One end of the connecting rod is slidably connected to the first positioning rod, and the other end is slidably connected to the second positioning rod. Connecting ropes are also fixedly connected to the two corners of the free end of the protective side membrane.

[0013] By adopting the above technical solution, the positioning bracket can be folded and stored in the storage slot at ordinary times, so as to facilitate transportation and storage; when it is needed, the first positioning rod is rotated out of the storage slot and extended, and the distance between the two first positioning rods is adjusted according to the width of the pit body. When the distance is adjusted to a suitable distance, the first positioning rod is fixed on the ground, and then the connecting rod is rotated to rotate the second positioning rod to a suitable position, thus completing the deployment of the positioning bracket, and the connecting rope on the protective top membrane and the protective side membrane can be hung on the first positioning rod or the second positioning rod, so as to complete the positioning and support of one end of the protective top membrane and the protective side membrane, thereby facilitating the deployment of the protective top membrane and the protective side membrane.

[0014] Optionally, the first positioning rod includes rod one and rod two, rod two is slidably connected to rod one, rod one is rotatably connected to the storage groove, the second positioning rod is rotatably connected to rod one, rod one is provided with a locking groove along its length direction, rod two is threadedly connected with a locking bolt, one end of the connecting rod is rotatably connected to the locking bolt, the second positioning rod is provided with a sliding groove along its length direction, the other end of the connecting rod is rotatably connected to a sliding column, and the sliding column is slidably connected in the sliding groove.

[0015] By adopting the above technical solution, when the positioning bracket needs to be used, the first positioning rod is rotated out of the storage groove, and the second rod is pulled out from the first rod so that the second rod is in contact with the ground. The connecting rod is rotated to rotate the second positioning rod to a suitable position, and then the locking bolt is rotated to lock the second rod and the connecting rod, thereby completing the simultaneous locking of the first positioning rod and the second positioning rod, that is, completing the fixation of the positioning bracket, and the operation is simple and convenient.

[0016] Optionally, a guide groove is vertically opened on the top of the positioning box, and two fixedly connected racks are vertically slidably connected in the guide groove, and the two racks are meshed with gears on the sides away from each other. The two first positioning rods are respectively fixedly connected to the two gears, and a driving screw is rotatably connected to the positioning box, and the driving screw is vertically inserted between the two racks and threadedly connected to the racks, and a rotating handwheel is fixedly connected to the top of the driving screw.

[0017] By adopting the above technical solution, when it is necessary to store or unfold the two sets of positioning brackets, the hand wheel is rotated, and the driving screw is driven to rotate, and the driving screw drives the two racks to slide up and down in the guide groove, thereby driving the two gears to rotate, and the two gears drive the two first positioning rods to rotate, thereby turning the first positioning rods out of or into the storage groove, and the two sets of positioning brackets can be extended or stored by turning the hand wheel, which is convenient for investigators to use.

[0018] Optionally, one end of the winding roller extends out of the winding box and is fixedly connected to a retracting hand wheel.

[0019] By adopting the above technical solution, when the protective top film needs to be rolled up, the winding box is moved toward the positioning box, and the winding hand wheel is turned at the same time to drive the winding roller to rotate, thereby winding the protective top film on the winding roller, completing the storage of the protective top film, and the operation is simple and convenient.

[0020] Optionally, a driving rod is rotatably connected to the winding box body, and the driving rod is located under the winding roller and has an axial direction parallel to the axial direction of the winding roller, and two fixed columns are rotatably connected to the winding box body, and the two support columns are rotatably connected to the two fixed columns respectively, and the support columns rotate in a vertical plane, and the two fixed columns are located under the driving rod and are rotatably connected to the driving rod through a bevel gear set, and the driving rod and the winding roller are coaxially fixedly connected with a rotating pulley, and the driving rod and the winding roller are coaxially provided with a fixed pulley, and the fixed pulley is fixedly connected to the winding box body, and the fixed pulley abuts against the rotating pulley, and the two fixed pulley outer shells are provided with belts, and a clamping block is slidably connected to the winding box body, and the clamping block is used to clamp the belt.

[0021] By adopting the above technical solution, when only the protective top film needs to be rolled up, the belt is located on the fixed pulley, and the rotation of the winding roller does not affect the rotation of the driving rod; when the protective top film and the protective side film need to be rolled up at the same time, the clamping block can be slid to slide the belt onto the rotating pulley, and then the retracting and releasing hand wheel is rotated, the retracting and releasing hand wheel drives the retracting roller to rotate, and the retracting roller drives the driving rod to rotate through the belt, and the driving rod drives the two support columns to rotate through two sets of bevel gear groups, so that the two protective side films can be rolled up at the same time, thereby greatly improving the storage efficiency and facilitating use by investigators.

[0022] Optionally, a receiving groove is provided at the bottom of the support column, a second fixed cone is vertically slidably connected in the receiving groove, a pushing block is fixedly connected to the top of the second fixed cone, and a clamping groove is provided at the top of the receiving groove corresponding to the pushing block.

[0023] By adopting the above technical solution, when the support column stands on the ground, the pushing block can be rotated to disengage it from the card slot, and then the pushing block can be slid downward to make the second fixed cone slide downward and insert into the ground, thereby fixing the support column and improving the stability of the support column, thereby improving the stability of the support for the winding box.

[0024] Optionally, the supporting assembly includes a plurality of groups of telescopic frames, which are arranged in a direction from the positioning box to the winding box, and two adjacent groups of telescopic frames are fixedly connected. The telescopic frames include four support rods connected end to end, and the four support rods are arranged in a diamond shape and are rotatably connected to each other. The telescopic frames located at both ends are respectively rotatably connected to the sliding plate and the winding box.

[0025] By adopting the above technical solution, the telescopic frame can be extended by moving the winding box, and multiple support rods support the protective top film to prevent the protective top film from sagging due to accumulated rainwater when it rains, thereby improving the protective effect of the protective top film.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the investigators need to enter the pit for investigation, the height of the winding box can be raised through the support assembly to keep it away from the ground, thereby raising the position of the protective top film, making it easier for the investigators to enter the pit and move freely in an upright position in the pit. At the same time, it can prevent external high temperature and sunlight, maintain air circulation in the pit, and ensure light exposure in the pit, making it easier for the investigators to observe the soil profile; 2. When the protective top film is laid close to the surface of the pit opening, the two support columns are stored in the winding box; when the protective top film is laid away from the ground, the support columns can be rotated out of the winding box to a vertical state, and then the connecting rope of the protective side film is hung on the positioning bracket. During the movement of the winding box, the two protective side films are unfolded, thereby providing multi-directional protection for the space above the pit body and improving the sun and rain protection effect; 3. When it is necessary to store or unfold the two sets of positioning brackets, rotate the hand wheel, and the hand wheel drives the driving screw to rotate. The driving screw drives the two racks to slide up and down in the guide groove, thereby driving the two gears to rotate. The two gears drive the two first positioning rods to rotate, thereby turning the first positioning rods out of or into the storage groove. The two sets of positioning brackets can be extended or stored by rotating the hand wheel, which is convenient for investigators to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 It is a partial structural schematic diagram of an embodiment of the present application, mainly used to show the positioning bracket; Figure 3 It is a left view of a part of the structure of the embodiment of the present application, mainly used to show the driving parts; Figure 4 It is a partial structural cross-sectional view of an embodiment of the present application, mainly used to show the winding box; Figure 5 It is a partial structural diagram of an embodiment of the present application, mainly used to show the retractable drive assembly; Figure 6 It is a partial structural diagram of an embodiment of the present application, mainly used to display the support assembly.

[0028] Description of reference numerals: 10, positioning box; 101, storage slot; 102, guide slot; 103, limit slot; 11, positioning bracket; 111, first positioning rod; 1111, rod one; 1112, rod two; 1113, locking slot; 112, second positioning rod; 1121, slide slot; 113, locking bolt; 114, locking knob; 115, first fixed cone; 116, connecting rod; 117, slide column; 12, driving member; 121, driving screw; 122, rack; 123, gear; 124, rotating hand wheel; 20, winding box; 201, sliding slot; 202, clamping slot; 203, yielding slot; 211, Winding roller; 212, protective top film; 213, connecting rope; 221, fixed column; 222, supporting column; 223, accommodating groove; 224, fixing plate; 231, fixing bolt; 232, fixing knob; 24, protective side film; 25, retracting and releasing drive assembly; 251, retracting and releasing handwheel; 252, driving rod; 253, fixed pulley; 254, belt; 255, rotating pulley; 256, clamping block; 257, bevel gear set; 261, second fixed cone; 262, pushing block; 30, supporting assembly; 301, telescopic frame; 3011, supporting rod; 302, adjusting screw; 303, sliding plate; 304, adjusting handwheel. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-6 This application is described in further detail.

[0030] The embodiment of the present application discloses a soil layer profile protection device for land survey.

[0031] Reference Figure 1 A soil layer profile protection device for land survey includes a positioning box 10 and a winding box 20. The positioning box 10 and the winding box 20 are connected by a support assembly 30. A protective film is wound on the winding box 20. The support assembly 30 can be extended to support the protective film. During installation, the positioning box 10 is first installed at one end above the pit body close to the observation profile to complete the positioning of one end of the protective film, and then the winding box 20 is moved away from the positioning box 10. During this process, the protective film unfolds and covers the top of the pit body. Then, the winding box 20 is installed at one end above the pit body close to the step, thereby completing the fixing of the protective film, that is, completing the protection of the soil layer profile. The height of the winding box 20 can be adjusted by the support assembly 30. When the pit body needs to be protected for a long time, the winding box 20 is adjusted to be located on the ground. At this time, the protective film can cover the surface above the pit body. When investigators need to enter the pit body for investigation, the height of the winding box 20 can be adjusted to be away from the ground, thereby raising the position of the protective film, making it easier for investigators to enter the pit body and move freely in an upright state in the pit body, while preventing external high temperature sunlight and facilitating investigators to observe the soil layer profile.

[0032] Reference Figure 1 The positioning box 10 is vertically arranged, and two groups of positioning brackets 11 are stored in the positioning box 10. The two groups of positioning brackets 11 are symmetrically arranged in the vertical direction. A driving member 12 is arranged in the positioning box 10, and the driving member 12 is used to drive the two groups of positioning brackets 11 to rotate. When the protective film needs to be unfolded, the free end of the protective film is first mounted on the positioning bracket 11, and then the driving member 12 is operated to drive the two groups of positioning brackets 11 to rotate out of the positioning box 10, and the two groups of positioning brackets 11 are rotated to a suitable position according to the width of the pit body, thereby completing the positioning and support of the free end of the protective film.

[0033] Reference Figure 2 A storage slot 101 is vertically opened in the positioning box 10, and the two sets of positioning brackets 11 are both rotatably connected in the storage slot 101. The positioning bracket 11 includes a first positioning rod 111 and a second positioning rod 112. The first positioning rod 111 is configured as a telescopic rod and includes a rod 1111 and a rod 2 1112. The top of the rod 1111 is rotatably connected in the storage slot 101, and the rod 2 1112 is slidably connected in the rod 1 1111. The second positioning rod 112-1111 end is hinged to the bottom of the rod 1 1111 away from the other positioning bracket 11. A locking groove 1113 is provided along the length direction of the rod 1111 on one side away from the winding box 20, and a locking bolt 113 is threadedly connected to the top of the rod 2112, and the locking bolt 113 is slidably connected in the locking groove 1113. When the rod 2112 extends from the rod 1111 to a suitable length, the rod 2112 is locked by the locking bolt 113. To facilitate the rotation of the locking bolt 113, a locking knob 114 is fixedly connected to the locking bolt 113. A first fixing cone 115 is fixedly connected to the bottom of the rod 2112, which is convenient for inserting into the ground to fix the first positioning rod 111. A connecting rod 116 is provided between the first positioning rod 111 and the second positioning rod 112. One end of the connecting rod 116 is rotatably connected to the locking bolt 113, and the other end is rotatably connected to the sliding column 117. A sliding groove 1121 is provided on one side of the second positioning rod 112 along the length direction of the second positioning rod 112 toward the connecting rod 116, and the sliding column 117 is slidably connected in the sliding groove 1121. When the locking bolt 113 is rotated to be tightly pressed against the connecting rod 116, the connecting rod 116 and the second rod 1112 can be locked at the same time, thereby locking the second positioning rod 112.

[0034] When the positioning bracket 11 is located in the storage slot 101, the first positioning rod 111 is in a retracted state, and the second positioning rod 112 is rotated to be parallel to the first positioning rod 111, so as to facilitate storage; when the positioning bracket 11 needs to be used, the first positioning rod 111 is rotated out of the storage slot 101, and the second rod 1112 is pulled out from the first rod 1111, so that the second rod 1112 contacts the ground, and the first fixing cone 115 is inserted into the ground, and the first positioning rod 111 is fixed on the ground. Then the connecting rod 116 is rotated to rotate the second positioning rod 112 to a suitable position, and then the locking knob 114 is rotated to make the locking bolt 113 lock the second rod 1112 and the connecting rod 116, thereby completing the fixing of the second positioning rod 112, that is, completing the deployment of the positioning bracket 11, so as to facilitate positioning and supporting the protective film.

[0035] Reference Figure 2 and Figure 3 The driving member 12 is located between the two groups of positioning brackets 11 and at the top of the positioning box 10. The driving member 12 includes a driving screw 121, a meshing rack 122 and a gear 123. A guide groove 102 is vertically opened on the top of the positioning box 10. The guide groove 102 is located between the two groups of positioning brackets 11, and the guide groove 102 is connected to the storage groove 101. The driving screw 121 is rotatably connected in the guide groove 102, and the driving screw 121 is axially vertically arranged. The meshing rack 122 and the gear 123 are arranged in two groups, which are respectively arranged corresponding to the two positioning brackets 11. The two racks 122 are fixedly connected and vertically slidably connected in the guide groove 102. The two gears 123 are both rotatably connected in the storage groove 101. The tops of the two first positioning rods 111 are respectively fixedly connected to the two gears 123. A groove is vertically opened between the two racks 122 , and the driving screw 121 is inserted into the groove and threadedly connected thereto, and a rotating hand wheel 124 is fixedly connected to the top of the driving screw 121 .

[0036] Rotate the hand wheel 124, and the hand wheel 124 drives the driving screw 121 to rotate. The driving screw 121 drives the two racks 122 to slide up and down in the guide groove 102, thereby driving the two gears 123 to rotate. The two gears 123 drive the two first positioning rods 111 to rotate, thereby rotating the first positioning rods 111 out of or into the storage groove 101. The two sets of positioning brackets 11 can be extended or stored by rotating the hand wheel 124, and the operation is simple and convenient.

[0037] Reference Figure 1 , Figure 2 and Figure 4The winding box 20 is arranged horizontally, and a winding roller 211 is rotatably connected in the winding box 20. The axial direction of the winding roller 211 is parallel to the length direction of the winding box 20. A protective top film 212 is wound on the winding roller 211, and the starting end of the protective top film 212 is bonded to the winding roller 211. The winding box 20 is provided with a groove on the side facing the positioning box 10 for the protective top film 212 to extend out. The two corners of the free end of the protective top film 212 are fixedly connected with connecting ropes 213, which are set to elastic materials. The connecting ropes 213 can be mounted on the first positioning rod 111 or the second positioning rod 112, and then in the process of moving the winding box 20 away from the positioning box 10, the winding roller 211 rotates to unfold the protective top film 212.

[0038] Reference Figure 1 and Figure 4 Two fixing columns 221 are rotatably connected to the winding box 20 through a fixing plate 224. The two fixing columns 221 are respectively located at the two ends of the winding box 20 and below the winding roller 211. The bottom of each fixing column 221 is rotatably connected to a support column 222, and the support column 222 rotates in a vertical plane. Two fixing bolts 231 are also threadedly connected to the winding box 20. The two fixing bolts 231 are respectively arranged corresponding to the two support columns 222, and are used to lock the support columns 222 and the corresponding fixing columns 221. In order to facilitate the rotation of the fixing bolts 231, a fixing knob 232 is fixedly connected to the fixing bolts 231, and the fixing knob 232 is located outside the winding box 20. The two support columns 222 are both wound with protective side films 24, one end of the protective side films 24 is fixedly connected to the side wall of the support column 222, and the two corners of the other end are also fixedly connected with connecting ropes 213, and the two connecting ropes 213 are respectively used to hang on the first positioning rod 111 and the second positioning rod 112. The bottom of the winding box 20 is opened to facilitate the storage of the support column 222.

[0039] When long-term protection of the pit body is required, the support column 222 can be rotated to be bent and stored in the winding box 20, the winding box 20 can be placed on the ground, the two connecting ropes 213 of the protective top film 212 can be hung on the bottom of the two first positioning rods 111, and the protective top film 212 can be unfolded, so that the protective top film 212 covers the opening surface of the pit body to complete the protection of the pit body.

[0040] When investigators need to enter the pit for investigation, they can rotate the support column 222 out of the winding box 20 and make it vertical. At this time, rotate the fixing knob 232 to lock the support column 221 so that the winding box 20 is away from the ground. At this time, the two connecting ropes 213 on the protective top film 212 are hung on the two second positioning rods 112, so that the protective top film 212 is off the ground and covers the top of the pit, making it convenient for investigators to remain upright and move freely in the pit. In addition, the protective side membranes 24 on the two support columns 222 can be unfolded, and the two connecting ropes 213 of the protective side membrane 24 can be hung on the first positioning rod 111 and the second positioning rod 112 respectively, so as to complete the multi-directional protection of the space above the pit body and prevent external high temperature sunlight. At the same time, since the positioning box 10 and the winding box 20 are not closed with protective membrane, air flow in the pit body can be guaranteed to avoid excessive temperature in the pit body. At the same time, sufficient light in the pit body can be guaranteed, which is convenient for investigators to observe the soil layer profile.

[0041] Reference Figure 5 A reeling and unreeling driving assembly 25 is also provided in the reeling box 20, which is used to drive the reeling roller 211 to rotate or drive the reeling roller 211 and the two supporting columns 222 to rotate simultaneously. When only the protective top film 212 is needed, the reeling assembly drives the reeling roller 211 to rotate, so that the protective top film 212 can be retracted and unreeled; when the protective top film 212 and the protective side film 24 need to be used at the same time, the reeling assembly can drive the reeling roller 211 and the two supporting columns 222 to rotate simultaneously, so that the protective top film 212 and the protective side film 24 can be retracted and unreeled at the same time.

[0042] Reference Figure 5 and Figure 6The retracting and releasing driving assembly 25 includes a retracting and releasing hand wheel 251. One end of the reeling roller 211 extends out of the reeling box 20 and is coaxially fixedly connected to the retracting and releasing hand wheel 251. Rotating the retracting and releasing hand wheel 251 can drive the reeling roller 211 to rotate, thereby completing the retracting and releasing of the protective top film 212. A driving rod 252 is also rotatably connected to the reeling box 20. The driving rod 252 is located below the reeling roller 211, and the axial direction of the driving rod 252 is parallel to the axial direction of the reeling roller 211. The reeling roller 211 and the driving rod 252 are both coaxially sleeved with a fixed pulley 253 on the outside. The fixed pulley 253 is fixedly connected to the inner wall of one end of the reeling box 20, and the two fixed pulleys 253 are outerly provided with a belt 254. The reeling roller 211 and the driving rod 252 are coaxially fixedly connected to one end of the fixed pulley 253, and the rotating pulley 255 is in contact with the fixed pulley 253. The winding box 20 is slidably connected with a clamping block 256, which is used to clamp the belt 254. The winding box 20 is provided with a sliding groove 201 along the axial direction of the winding roller 211. The clamping block 256 slides along the sliding groove 201 to drive the belt 254 to slide between the rotating pulley 255 and the fixed pulley 253. When the belt 254 slides onto the rotating pulley 255, the winding roller 211 rotates and the driving rod 252 can be driven to rotate through the belt 254.

[0043] Reference Figure 5 The driving rod 252 is located above the fixed column 221. The tops of the two fixed columns 221 and the driving rod 252 are rotatably connected via a set of bevel gear sets 257. When the driving rod 252 rotates, the two fixed columns 221 can be driven to rotate via the bevel gear sets 257, and the two fixed columns 221 can in turn drive the supporting columns 222 connected thereto to rotate, thereby completing the retraction and extension of the protective side membrane 24.

[0044] When only the protective top film 212 is needed, the belt 254 is located on the fixed pulley 253 , and rotating the retracting and releasing hand wheel 251 only drives the reeling roller 211 to rotate, thereby facilitating the retracting and releasing of the protective top film 212 . When it is necessary to use the protective top film 212 and the protective side film 24 at the same time, rotate the support column 222 to a vertical state, loosen the fixing bolt 231, slide the clamping block 256 at this time, slide the belt 254 to the rotating pulley 255, and then rotate the retracting and releasing handwheel 251. The retracting and releasing handwheel 251 drives the winding roller 211 to rotate, and the winding roller 211 drives the driving rod 252 to rotate through the belt 254. The driving rod 252 drives the two support columns 222 to rotate through two sets of bevel gear sets 257, so as to facilitate the retraction and release of the protective side film 24. At this time, rotating the retracting and releasing handwheel 251 can simultaneously complete the driving of the winding roller 211 and the two support columns 222, so that the protective top film 212 and the two protective side films 24 can be retracted and released at the same time, which greatly improves the installation efficiency and is convenient for investigators to use.

[0045] Reference Figure 5In order to stably insert the support column 222 into the ground, a receiving groove 223 is provided at the bottom of the support column 222, and a second fixing cone 261 is vertically slidably connected in the receiving groove 223, and a pushing block 262 is fixedly connected to the top of the second fixing cone 261. A clamping groove 202 is correspondingly provided at the top of the receiving groove 223. When the second fixing cone 261 is located in the receiving groove 223, the pushing block 262 is located in the clamping groove 202. When the support column 222 needs to be fixed, the pushing block 262 is rotated to disengage the clamping groove 202, and then the pushing block 262 is slid downward to make the second fixing cone 261 slide downward and insert into the ground, thereby completing the fixing of the support column 222 and making it stably inserted into the ground.

[0046] Reference Figure 4 and Figure 6 The support assembly 30 includes multiple groups of telescopic frames 301, which are located between the positioning box 10 and the winding box 20 and arranged along the unfolding direction of the protective top film 212. Two adjacent groups of telescopic frames 301 are fixedly connected. The telescopic frames 301 include four end-to-end support rods 3011, which are arranged in a diamond shape and are rotatably connected between two adjacent ones. The telescopic frames 301 located at both ends are rotatably connected to the positioning box 10 and the winding box 20 respectively. The winding box 20 is provided with a clearance groove 203 for the telescopic frames 301 to rotate. The telescopic frames 301 are located below the winding roller 211, thereby supporting the protective top film 212. To facilitate adjustment of the height of the support assembly 30, an adjusting screw 302 is vertically rotatably connected to the positioning box 10, and a limiting groove 103 is vertically opened on the positioning box 10 toward the side of the winding box 20. A sliding plate 303 is threadedly connected to the adjusting screw 302, and the sliding plate 303 is vertically slidably connected in the limiting groove 103. One end of the telescopic frame 301 close to the positioning box 10 is rotatably connected to the sliding plate 303, and an adjusting handwheel 304 is fixedly connected to the top of the adjusting screw 302 to facilitate the rotation of the adjusting screw 302.

[0047] When it is necessary to adjust the height of the winding box 20, that is, adjust the height of the support assembly 30, turn the adjustment hand wheel 304, drive the sliding plate 303 to slide up and down, the sliding plate 303 drives the support assembly 30 to slide up and down, and the support assembly 30 drives the winding box 20 to slide up and down, so that the distance between the protective top film 212 and the opening of the pit body can be easily adjusted, so that the protective top film 212 can cover the surface of the pit body opening, and can also be laid away from the pit body, so that a certain distance is maintained between the protective top film 212 and the pit body, so as to facilitate investigators to enter the pit body and move freely in the pit body.

[0048] The implementation principle of the soil profile protection device for land investigation in the embodiment of the present application is as follows: when the investigators investigate the soil profile in the pit, they first fix the positioning box 10 on one end of the pit surface close to the soil profile. At this time, the screw 302 can be rotated to adjust the sliding plate 303 to drive the support assembly 30 to move upward, thereby driving the winding box 20 to move upward, so that a certain distance is maintained between the winding box 20 and the pit.

[0049] Then, the hand wheel 124 is rotated to drive the driving screw 121 to rotate, and the driving screw 121 drives the two racks 122 to slide in the guide groove 102, thereby driving the two gears 123 to rotate, and the two gears 123 drive the two first positioning rods 111 to rotate away from each other, so that the first positioning rods 111 extend out from the storage groove 101. When the two first positioning rods 111 move to a suitable position according to the width of the pit body, the second rod 1112 is pulled out from the first rod 1111, so that the second rod 1112 contacts the ground, and the first fixing cone 115 is inserted into the ground to fix the first positioning rod 111 on the ground. Next, the connecting rod 116 is rotated to rotate the second positioning rod 112 to a suitable position, and then the locking knob 114 is rotated to make the locking bolt 113 lock the second rod 1112 and the connecting rod 116, thereby completing the fixing of the second positioning rod 112, that is, completing the deployment of the positioning bracket 11.

[0050] The connecting rope 213 of the protective top film 212 is mounted on the two second positioning rods 112, and then the supporting column 222 is rotated out of the winding box 20 and made vertical, and the connecting rope 213 of the protective side film 24 is mounted on the first positioning rod 111 and the second positioning rod 112, and the winding box 20 is moved to the other end of the pit body. At this time, the belt 254 is located on the fixed pulley 253. In the process of moving the winding box 20, the protective top film 212 and the protective side film 24 are pulled, and the winding roller 211 and the supporting column 222 rotate, so as to unfold the protective top film 212 and the protective side film 24.

[0051] When the winding box 20 moves to the other end of the pit surface, the support assembly 30 is extended, and the protective top film 212 and the protective side film 24 are also unfolded. Then the second fixing cone 261 is inserted into the ground to fix the support column 222. At this time, the fixing bolts 231 are tightened to fix the support column 222, thereby completing the laying of the protective top film 212 and the protective side film 24. Since the protective top film 212 maintains a certain distance from the pit opening, it is convenient for investigators to enter the pit and remain upright and move freely in the pit. In addition, due to the shielding of the protective top film 212 and the protective side film 24, it can prevent external high temperature sunlight and maintain air circulation in the pit. At the same time, it can also ensure light exposure in the pit, which is convenient for investigators to observe the soil profile.

[0052] When investigators need to leave the pit for a long time, they can lower the position of the winding box 20 by adjusting the screw 302, so that the support column 222 is bent and stored in the winding box 20. At this time, they only need to unfold the protective top film 212 so that the protective top film 212 covers the surface of the pit opening, thereby completing the protection of the pit.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A soil profile protection device for land survey, characterized in that: The invention comprises a positioning box (10) and a winding box (20), wherein the positioning box (10) and the winding box (20) are connected via a support assembly (30), wherein the support assembly (30) can slide vertically on the positioning box (10), wherein a protective top film (212) is wound inside the winding box (20), wherein two groups of positioning brackets (11) are rotatably connected inside the positioning box (10), wherein connecting ropes (213) are provided at both corners of the free end of the protective top film (212), wherein the connecting ropes (213) are used for being mounted on the positioning bracket (11), wherein the support assembly (30) is located below the protective top film (212), and wherein the support assembly (30) is retractable.

2. The soil profile protection device for land survey according to claim 1, characterized in that: The positioning box (10) is vertically arranged, and an adjusting screw (302) is vertically rotatably connected to the positioning box (10), and a sliding plate (303) is threadedly connected to the adjusting screw (302). The adjusting screw (302) is used to drive the sliding plate (303) to slide vertically, and one end of the support assembly (30) is located on the sliding plate (303), and an adjusting hand wheel (304) is fixedly connected to the top of the adjusting screw (302).

3. The soil profile protection device for land survey according to claim 1, characterized in that: The winding box (20) is arranged horizontally, and a winding roller (211) is rotatably connected inside the winding box (20), and the axial direction of the winding roller (211) is parallel to the length direction of the winding box (20). The protective top film (212) is wound on the winding roller (211), and two supporting columns (222) are rotatably connected at both ends inside the winding box (20), and a protective side film (24) is wound on the supporting columns (222). Two fixing bolts (231) are threadedly connected to the winding box (20), and the two fixing bolts (231) are respectively used to lock the two supporting columns (222).

4. The soil profile protection device for land survey according to claim 3 is characterized in that: The positioning box (10) is provided with a storage groove (101), and the two groups of positioning brackets (11) are both rotated in the storage groove (101). The positioning bracket (11) includes a first positioning rod (111) and a second positioning rod (112). The top end of the first positioning rod (111) is rotated in the storage groove (101), and the bottom end of the second positioning rod (112) is rotatably connected to the first positioning rod (111). The first positioning rod (111) is retractable. A connecting rod (116) is provided between the first positioning rod (111) and the second positioning rod (112). One end of the connecting rod (116) is slidably connected to the first positioning rod (111), and the other end is slidably connected to the second positioning rod (112). Connecting ropes (213) are also fixedly connected to the two corners of the free end of the protective side membrane (24).

5. The soil profile protection device for land survey according to claim 4, characterized in that: The first positioning rod (111) comprises a rod one (1111) and a rod two (1112), wherein the rod two (1112) is slidably connected to the rod one (1111), and the rod one (1111) is rotatably connected to the storage groove (101), and the second positioning rod (112) is rotatably connected to the rod one (1111), and a locking groove (1113) is provided on the rod one (1111) along its length direction, and a locking bolt (113) is threadedly connected to the rod two (1112), and one end of the connecting rod (116) is rotatably connected to the locking bolt (113), and a sliding groove (1121) is provided on the second positioning rod (112) along its length direction, and the other end of the connecting rod (116) is rotatably connected to a sliding column (117), and the sliding column (117) is slidably connected to the sliding groove (1121).

6. The soil profile protection device for land survey according to claim 4, characterized in that: A guide groove (102) is vertically opened on the top of the positioning box (10), and two fixedly connected racks (122) are vertically slidably connected in the guide groove (102). The two racks (122) are meshed with gears (123) on the sides away from each other. The two first positioning rods (111) are respectively fixedly connected to the two gears (123). A driving screw (121) is rotatably connected to the positioning box (10), and the driving screw (121) is vertically inserted between the two racks (122) and threadedly connected to the racks (122). A rotating hand wheel (124) is fixedly connected to the top of the driving screw (121).

7. The soil profile protection device for land survey according to claim 3, characterized in that: One end of the winding roller (211) extends out of the winding box (20) and is fixedly connected to a winding and releasing hand wheel (251).

8. The soil profile protection device for land survey according to claim 7, characterized in that: A driving rod (252) is rotatably connected inside the winding box (20); the driving rod (252) is located below the winding roller (211) and its axial direction is parallel to the axial direction of the winding roller (211); two fixing columns (221) are rotatably connected inside the winding box (20); the two supporting columns (222) are rotatably connected to the two fixing columns (221) respectively; the supporting columns (222) rotate in a vertical plane; the two fixing columns (221) are located below the driving rod (252) and are rotatably connected to the driving rod (252) via a bevel gear set (257); the driving rod A rotating pulley (255) is coaxially fixedly connected to the drive rod (252) and the winding roller (211); a fixed pulley (253) is coaxially sleeved on the drive rod (252) and the winding roller (211); the fixed pulley (253) is fixedly connected to the winding box (20); the fixed pulley (253) abuts against the rotating pulley (255); belts (254) are provided on the outer sleeves of the two fixed pulleys (253); a clamping block (256) is slidably connected to the winding box (20); the clamping block (256) is used to clamp the belt (254).

9. The soil profile protection device for land survey according to claim 3, characterized in that: A receiving groove (223) is provided at the bottom of the support column (222), a second fixed cone (261) is vertically slidably connected in the receiving groove (223), a pushing block (262) is fixedly connected at the top of the second fixed cone (261), and a clamping groove (202) is provided at the top of the receiving groove (223) corresponding to the pushing block (262).

10. The soil profile protection device for land survey according to claim 2, characterized in that: The support assembly (30) comprises a plurality of groups of telescopic frames (301), the plurality of groups of telescopic frames (301) being arranged in a direction from the positioning box (10) to the winding box (20), two adjacent groups of telescopic frames (301) being fixedly connected, the telescopic frames (301) comprising four support rods (3011) connected end to end, the four support rods (3011) being arranged in a diamond shape and two adjacent support rods (3011) being rotatably connected, and the telescopic frames (301) located at both ends are rotatably connected to the sliding plate (303) and the winding box (20), respectively.

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