A rapid soil transfer device in a deep foundation pit

Abstract

The application provides a kind of quick transport device of soil in deep foundation pit, it includes the inclined conveyor, the inclined bottom end of conveyor is provided with soil feeding mechanism, soil feeding mechanism includes for soil loosening and pushing soil loosening and pushing soil assembly, is provided at the rear side of soil loosening and pushing soil assembly for crushing large block of soil crushing assembly, and for simultaneously driving soil loosening and pushing soil assembly and crushing assembly drive assembly. By setting soil feeding mechanism consisting of drive assembly, soil loosening and pushing soil assembly and crushing assembly at the inclined bottom end of conveyor, it is convenient to use drive assembly to drive soil loosening and pushing soil assembly and crushing assembly to operate synchronously, soil loosening and pushing soil assembly at the bottom end of conveyor is loosened and fed, and crushing assembly can crush large block of soil on the conveyor, so as to realize the effect of efficient transportation of foundation pit soil by using conveyor.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of building construction, in particular to a rapid soil transfer device in deep foundation pit. BACKGROUND

[0002] With the development of urban modernization, more and more underground projects are being built, and large underground projects have higher and higher requirements for deep foundation pit projects. Generally, a deep foundation pit refers to a pit with an excavation depth of more than 5 meters (including 5 meters) or three floors or more of a basement (including three floors), or a pit with an excavation depth of less than 5 meters but with particularly complex geological conditions, surrounding environment, and underground pipelines.

[0003] During the excavation of the foundation pit, a ramp is usually built first to connect the inside of the foundation pit to the outside. During the excavation process, a large amount of soil is generated, and the excavated soil is then transported to the outside of the foundation pit by a loading vehicle. The soil inside the foundation pit needs to be cleaned repeatedly using the loading vehicle for multiple times of transfer, which requires a large amount of manpower and resources. In addition, the soil has a high water content or is affected by rain, which causes the soil to clump. The usual excavation equipment further reduces the efficiency of cleaning the soil in the deep foundation pit. Therefore, a rapid soil transfer device in a deep foundation pit is proposed to solve the above problems. SUMMARY

[0004] The main purpose of the present application is to provide a rapid soil transfer device in a deep foundation pit, which solves the problem of a large amount of soil requiring a large amount of manpower and resources for transfer when excavating a ramp from the inside of the foundation pit to the outside.

[0005] To solve the above technical problems, the technical solution adopted by the present application is as follows: a rapid soil transfer device in a deep foundation pit, comprising an inclined conveyor, an inclined bottom end of the conveyor is provided with a soil feeding mechanism, the soil feeding mechanism comprises a soil loosening and pushing assembly for loosening and pushing soil, a crushing assembly provided at the rear side of the soil loosening and pushing assembly for crushing large pieces of soil, and a driving assembly for simultaneously driving the soil loosening and pushing assembly and the crushing assembly.

[0006] In a preferred embodiment, the soil loosening and pushing assembly comprises a limiting guide structure provided on the side of the bottom end of the conveyor and extending to the outside thereof, a sliding structure slidingly provided on the limiting guide structure and drivingly connected with the driving assembly, and a soil pushing plate rotatably provided through the sliding structure, the soil pushing plate being located above the conveyor and having a soil loosening structure on one side, and the soil pushing plate being provided with a first rotary engagement structure at one end penetrating the sliding structure for rotating the soil pushing plate.

[0007] Preferably, the crushing assembly comprises a U-shaped plate frame arranged on the conveyor, two guide rods and a rotatable screw rod arranged in the U-shaped plate frame, the screw rod is composed of two opposite threaded rods, the outer parts of the two threaded rods are respectively threadedly connected with crushing structures, the crushing structures are slidably connected with the two guide rods, one end of the screw rod close to the driving assembly penetrates through the U-shaped plate frame and is provided with a second gear wheel in transmission connection with the driving assembly.

[0008] Preferably, the driving assembly comprises an electric cylinder arranged on the side of the conveyor, and a barrel rod arranged on the output end of the electric cylinder, the top end of the barrel rod is connected with the sliding structure, and the outer part is provided with a toothed long plate engaged with the second gear wheel.

[0009] Preferably, the soil loosening structure comprises a plurality of L-shaped frame rods arranged on one side of the bulldozing plate, and a tapered head arranged on one end of each L-shaped frame rod.

[0010] Preferably, the limiting guide structure comprises a limiting plate slot arranged on the side of the conveyor, a supporting plate arranged on the other side of the limiting plate slot, and a through slot arranged on the limiting plate slot, wherein the front end of the limiting plate slot and the supporting plate extends to the outside of the conveyor;

[0011] The sliding structure comprises a limiting sliding block, the bottom of the limiting sliding block is provided with a convex block in sliding connection with the limiting plate slot, the bottom of the convex block is provided with a connecting rod penetrating through the through slot and connected with the barrel rod, and the end of the bulldozing plate is provided with a rotating shaft penetrating through the limiting sliding block.

[0012] Preferably, the first rotary engagement structure comprises a first gear wheel arranged on the end of the rotating shaft, and a toothed short plate arranged on the supporting plate, the toothed short plate is located on the part of the supporting plate beyond the conveyor, when the limiting sliding block slides, the toothed short plate can be engaged with the first gear wheel to make it rotate;

[0013] The first gear wheel and the rotating shaft are connected in a transversely movable manner, the outer part of the connecting part of the rotating shaft is provided with a plurality of transverse slots, the inner ring wall of the first gear wheel is provided with a plurality of transverse blocks corresponding to the transverse slots, the transverse blocks and the corresponding transverse slots are slidably connected, and the limiting sliding block is further provided with a limiting clamping structure for pushing the first gear wheel to transversely move.

[0014] Preferably, the limiting clamping structure comprises a rectangular slot arranged in the limiting sliding block, and a displacement slot arranged on the top of the limiting sliding block and in communication with the rectangular slot, one side of the rectangular slot close to the first gear wheel is open, a clamping plate with an end extending to the outside of the opening is slidably arranged in the rectangular slot, the end of the clamping plate is connected with a U-shaped pushing block sleeved on the outside of the first gear wheel, and the front end top of the clamping plate is provided with a clamping rod penetrating through the displacement slot.

[0015] The top of the limiting plate groove at both ends is respectively provided with an oblique displacement clamping frame capable of clamping and clamping the clamping rod, the two oblique displacement clamping frames are not located on the same horizontal line, and the opposite ends of the two oblique displacement clamping frames are provided with oblique edge guide grooves, when the clamping rod slides into the oblique displacement clamping frame, the clamping rod generates transverse displacement under the guide of the oblique groove of the oblique displacement clamping frame, and the first gear is pushed and pulled.

[0016] In the preferred embodiment, a one-way pawl assembly is further arranged between the rotating shaft and the limiting sliding block, the one-way pawl assembly comprises a ratchet wheel arranged outside the rotating shaft, a pawl rotatably arranged on the side surface of the limiting sliding block and abutting against the ratchet wheel, and a compression spring sheet arranged on the side surface of the limiting sliding block and abutting against the pawl.

[0017] Two groups of limiting spring sheets are symmetrically arranged on the inner wall surface of the displacement groove, and the number of each group is two, and the two groups are located on the opposite inner wall surfaces of the displacement groove.

[0018] In the preferred embodiment, the crushing structure comprises a vertical frame in threaded connection with the screw rod and in sliding connection with the two guide rods, and a plurality of crushing cones arranged on the opposite sides of the two vertical frames.

[0019] One side of the U-shaped plate frame is provided with a short cover box which is covered outside the second gear;

[0020] The limiting plate groove and the outer part of the supporting plate are covered with a long cover box, and the side surface of the long cover box is provided with a through groove for the rotating shaft to pass through.

[0021] The application provides a kind of quick transport device of soil in deep foundation pit, by being arranged by drive assembly, soil loosening and pushing assembly and crushing assembly in the inclined bottom end of conveyor, it is convenient to use drive assembly to drive soil loosening and pushing assembly and crushing assembly to carry out synchronous operation, soil loosening and pushing assembly is loosened and loaded to the soil at the bottom end of conveyor, and crushing assembly can crush the large block of soil on conveyor, so as to realize the effect that conveyor is used to complete the efficient transport of foundation pit soil. BRIEF DESCRIPTION OF DRAWINGS

[0022] The application will be further described below in conjunction with the drawings and examples:

[0023] Figure 1 It is the overall structure diagram of the application;

[0024] Figure 2 It is the soil loading mechanism structure diagram of the application;

[0025] Figure 3 It is the connection structure diagram of drive assembly and crushing assembly of the application;

[0026] Figure 4 It is the limiting guide structure structure diagram of the application;

[0027] Figure 5It is the sliding structure diagram of the application;

[0028] Figure 6 It is the sliding structure sectional view of the application;

[0029] Figure 7 It is the one-way pawl assembly structure diagram of the application;

[0030] Figure 8 It is the displacement slot and limit spring sheet connecting structure diagram of the application;

[0031] Figure 9 It is the bulldozing plate and soil loosening structure connecting structure diagram of the application;

[0032] In the figure: conveyor 1; soil feeding mechanism 2; driving assembly 21; electric cylinder 211; cylinder rod 212; toothed long plate 213; crushing assembly 22; U-shaped plate frame 221; screw rod 222; guide rod 223; second gear 224; vertical frame 225; crushing cone 226; short cover box 227; soil loosening and bulldozing assembly 23; support plate 231; limit plate slot 232; through slot 234; toothed short plate 235; oblique displacement clamping frame 236; limit sliding block 237; convex block 238; rotating shaft 239; transverse displacement slot 2310; first gear 2311; transverse displacement block 2312; rectangular slot 2313; displacement slot 2314; clamping plate 2315; clamping rod 2316; U-shaped push block 2317; ratchet wheel 2318; pawl 2319; compression spring sheet 2320; limit spring sheet 2321; connecting rod 2322; L-shaped frame rod 2323; cone head 2324; long cover box 2325, bulldozing plate 2326. DETAILED DESCRIPTION

[0033] As Figures 1-6 , 9, a quick soil transfer device in a deep foundation pit, comprising an inclined conveyor 1, the inclined bottom end of the conveyor 1 is provided with a soil feeding mechanism 2, the soil feeding mechanism 2 comprises a soil loosening and bulldozing assembly 23 for loosening and bulldozing soil, a crushing assembly 22 arranged at the rear side of the soil loosening and bulldozing assembly 23 for crushing large pieces of soil, and a driving assembly 21 for driving the soil loosening and bulldozing assembly 23 and the crushing assembly 22 simultaneously.

[0034] In use, the driving assembly 21 drives the soil loosening and bulldozing assembly 23 to loosen the soil accumulated at the bottom end of the conveyor 1 and push the soil onto the conveyor 1, so that the conveyor 1 transports the soil from the foundation pit to the outside of the foundation pit, and at the same time during the conveying process of the conveyor 1, the driving assembly 21 drives the crushing assembly 22 to crush large pieces of soil, avoiding the blocking of the conveyor by large pieces of soil and the smooth conveying of the soil.

[0035] In the preferred embodiment, the soil loosening assembly 23 comprises a limiting guide structure fixed on the side of the bottom end of the conveyor 1 and extending to the outside thereof, a sliding structure slidingly arranged on the limiting guide structure and in transmission connection with the driving assembly 21, and a rotatable bulldozing plate 2326 penetratingly arranged on the sliding structure, the bulldozing plate 2326 being located above the conveyor 1 and provided with a soil loosening structure on one side, and the end of the bulldozing plate 2326 penetrating the sliding structure being provided with a first rotary engagement structure for rotating the bulldozing plate 2326.

[0036] In use, the sliding structure is pushed to slide on the limiting guide structure by the driving assembly 21, thereby driving the bulldozing plate 2326 to slide, and the soil at the bottom end of the conveyor 1 is pushed onto the conveyor 1 by the back-and-forth sliding of the bulldozing plate 2326 at the bottom end of the conveyor 1, and the bulldozing plate 2326 can be rotated in a certain distance of the back-and-forth sliding by the first rotary engagement structure, thereby loosening the soil by the soil loosening structure thereon.

[0037] In the preferred embodiment, the soil loosening structure comprises a plurality of L-shaped frame rods 2323 fixed on one side of the bulldozing plate 2326, and a tapered head 2324 fixed on one end of each L-shaped frame rod 2323, and in the embodiment, the L-shaped frame rods 2323 are equidistantly distributed on the top of the bulldozing plate 2326, and the tapered head 2324 is rotated by the rotation of the bulldozing plate 2326, thereby loosening the soil.

[0038] In the preferred embodiment, the limiting guide structure comprises a limiting plate groove 232 fixed on the side of the conveyor 1, a support plate 231 fixed on the other side of the limiting plate groove 232, and a penetrating groove 234 further arranged on the limiting plate groove 232, wherein the limiting plate groove 232 and the front end of the support plate 231 extend to the outside of the conveyor 1.

[0039] The sliding structure comprises a limiting sliding block 237, the bottom of the limiting sliding block 237 being integrally provided with a convex block 238 in sliding connection with the limiting plate groove 232, the limiting plate groove 232 being provided with a sliding groove matched with the convex block 238, the bottom of the convex block 238 being fixed with a connecting rod 2322 penetrating the penetrating groove 234 and connected with the cylinder rod 212 of the driving assembly 21, the driving device 21 driving the limiting sliding block 237 by the extension and retraction of the cylinder rod 212, the end of the bulldozing plate 2326 being provided with a rotating shaft 239 penetrating the limiting sliding block 237, so that the bulldozing plate 2326 can rotate in the limiting sliding block 237, and in the embodiment, a bearing is arranged in the limiting sliding block 237 for mounting the rotating shaft 239.

[0040] In the preferred embodiment, the first rotating engagement structure comprises a first gear 2311 arranged at the end of the rotating shaft 239, and a toothed short plate 235 fixed on the support plate 231, which is located on the part of the support plate 231 that extends beyond the conveyor 1. When the limiting slider 237 slides, the toothed short plate 235 can engage with the first gear 2311 to rotate, thereby driving the bulldozing plate 2326 to rotate and loosen the soil.

[0041] The first gear 2311 and the rotating shaft 239 are connected in a transversely movable manner. The outer part of the connection of the rotating shaft 239 is provided with a plurality of transverse grooves 2310, which are arranged annularly and equidistantly on the outer part of the rotating shaft 239, and the number is not less than two. The inner annular wall of the first gear 2311 is provided with a plurality of transverse blocks 2312 corresponding to the transverse grooves 2310. The transverse blocks 2312 and the corresponding transverse grooves 2310 are connected in a sliding manner. The limiting slider 237 is further provided with a limiting clamping structure for pushing the transverse movement of the first gear 2311.

[0042] In use, the transverse movement of the first gear 2311 on the rotating shaft 239 is adjusted by the limiting clamping structure to adjust the linear relationship between the first gear 2311 and the toothed short plate 235. When the bulldozing plate 2326 recovers the soil and brings it back to the conveyor 1, the first gear 2311 is pushed away from the path of the toothed short plate 235, so that the first gear 2311 does not contact and engage with the toothed short plate 235. Thus, the bulldozing plate 2326 can continuously maintain a horizontal movement path to bring the soil to one end of the conveyor 1 for continuous conveying operation. In this way, the soil is prevented from falling due to rotation during the bulldozing process of the bulldozing plate 2326. When the bulldozing plate 2326 is pushed out, the first gear 2311 is pushed back to the path of the toothed short plate 235, so that the first gear 2311 and the toothed short plate 235 have an engagement relationship, thereby loosening the soil that is about to be pushed onto the conveyor 1.

[0043] In the preferred embodiment, the limiting clamping structure comprises a rectangular groove 2313 arranged in the limiting slider 237, and a displacement groove 2314 arranged on the top of the limiting slider 237 and communicating with the rectangular groove 2313. The side of the rectangular groove 2313 close to the first gear 2311 is open. A clamping plate 2315 is slidingly arranged in the rectangular groove 2313, and the end of the clamping plate 2315 extends to the outside of the opening. The end of the clamping plate 2315 is connected with a U-shaped pushing block 2317 which is sleeved on the outside of the first gear 2311. The side wall of the U-shaped pushing block 2317 is connected with the side wall of the first gear 2311 in a sliding manner. The front end of the clamping plate 2315 is fixed with a clamping rod 2316 which penetrates through the displacement groove 2314.

[0044] In use, the clamping plate 2315 can be driven to slide in the rectangular groove 2313 by sliding the clamping rod 2316, so as to push the first gear 2311 by the U-shaped push block 2317 to generate horizontal movement, thereby achieving the effect of adjusting the linear relationship between the first gear 2311 and the toothed short plate 235.

[0045] The top of the two ends of the limiting plate groove 232 is respectively fixed with an inclined displacement clamping frame 236 which can be clamped with the clamping rod 2316. The two inclined displacement clamping frames 236 are symmetrically arranged in opposite directions on the limiting plate groove 232. The two inclined displacement clamping frames 236 are not located on the same horizontal line and are respectively located at the two ends of the horizontal sliding of the clamping rod 2316. The opposite ends of the two inclined displacement clamping frames 236 are provided with inclined edge guide grooves. The inclined edge facilitates the sliding of the clamping rod 2316 into the groove until the clamping rod 2316 is completely slid into the groove to generate horizontal movement. When the clamping rod 2316 slides into the inclined displacement clamping frame 236, the clamping rod 2316 generates horizontal movement under the inclined groove guide of the inclined displacement clamping frame 236 to push and pull the first gear 2311.

[0046] In the preferred embodiment, the crushing assembly 22 comprises a U-shaped frame 221 fixed on the conveyor 1. The U-shaped frame 221 is fixed on the housings on both sides of the conveyor 1. Two guide rods 223 and a rotatable screw rod 222 are fixed in the U-shaped frame 221. The screw rod 222 is located between the two guide rods 223. The screw rod 222 is composed of two opposite threaded rods. The outer parts of the two threaded rods are respectively threadedly connected with crushing structures. The crushing structures are slidably connected with the two guide rods 223. One end of the screw rod 222 close to the driving assembly 21 penetrates through the U-shaped frame 221 and is provided with a second gear 224 which is in transmission connection with the driving assembly 21.

[0047] In use, the driving assembly 21 drives the second gear 224 to rotate the screw rod 222, so that the two crushing structures on the screw rod 222 move relatively under the limitation of the guide rods 223, thereby crushing the large pieces of soil on the conveyor 1.

[0048] In the preferred embodiment, the crushing structure comprises a vertical frame 225 which is threadedly connected with the screw rod 222 and slidably connected with the two guide rods 223, and a plurality of crushing cones 226 which are arranged on the opposite sides of the two vertical frames 225. The crushing cones 226 move oppositely to crush the large pieces of soil.

[0049] In the preferred embodiment, the driving assembly 21 comprises an electric cylinder 211 fixed on the side of the conveyor 1, and a barrel rod 212 fixed on the output end of the electric cylinder 211. The top end of the barrel rod 212 is fixedly connected with the connecting rod 2322 of the sliding structure. The outside is externally provided with a toothed long plate 213 which is in engagement with the second gear 224.

[0050] In use, the extension and retraction of the cylinder rod 212 is driven by the extension and retraction of the electric cylinder 211, thereby using the toothed long plate 213 and the connecting rod 2322 to drive the loosening and bulldozing component 23 and the crushing component 22 to operate synchronously.

[0051] In this embodiment, a short cover box 227 covering the outside of the second gear 224 is fixedly provided on one side of the U-shaped plate frame 221, and the lower side of the short cover box 227 is open.

[0052] The limiting plate groove 232 and the support plate 231 are covered by a long cover box 2325. The side of the long cover box 2325 is provided with a through groove for the rotating shaft 239 to pass through, so as to facilitate the sliding of the rotating shaft 239.

[0053] Example 2

[0054] Further explanation in conjunction with Example 1, such as Figures 6-7 As shown in the structure, a one-way ratchet assembly is also provided between the rotating shaft 239 and the limiting slider 237. The one-way ratchet assembly includes a ratchet 2318 fixed outside the rotating shaft 239, a ratchet 2319 rotatably disposed on the side of the limiting slider 237 and in contact with the ratchet 2318, and a clamping spring 2320 disposed on the side of the limiting slider 237 and in contact with the ratchet 2319.

[0055] In this embodiment, the ratchet 2318 is located between the first gear 2311 and the limiting slider 237, and the pawl 2319 can rotate and abut against the ratchet 2318 through a bearing fixed on the side of the limiting slider 237.

[0056] In use, the ratchet 2318 and pawl 2319 work together to make the bulldozer blade 2326 rotate clockwise to loosen the soil. When the bulldozer blade 2326 is retracting the soil, the bulldozer blade 2326 will not rotate unnecessarily due to the restriction of the one-way pawl assembly.

[0057] Example 3

[0058] Further explanation in conjunction with Example 1, such as Figure 6 and 8 As shown in the structure, two sets of limiting springs 2321 are symmetrically arranged on the inner wall of the displacement groove 2314. There are two in each set, located on opposite inner wall surfaces of the displacement groove 2314. One end of the limiting spring 2321 is fixed to the inner wall surface, and the other end is free. This allows the guide rod 223 to be limited by the limiting spring 2321 when there is no oblique displacement bracket 236 pushing it, thus preventing unnecessary lateral movement during the movement. When the guide rod 223 comes into contact with the oblique displacement bracket 236, the guide rod 223 compresses the limiting spring 2321 to move laterally.

[0059] The working principle and use process of the present application: by moving the same length of conveyor 1 into the foundation pit, starting the conveyor 1, which is the prior art, then synchronously starting the electric cylinder 211 to extend, driving the cylinder rod 212 and the connected limiting slide block 237 to move horizontally on the limiting plate slot 232, when moving, the first gear 2311 is in contact and engaged with the tooth short plate 235, the first gear 2311 will drive the rotating shaft 239 and the bulldozer plate 2326 to rotate, the bulldozer plate 2326 has been separated from the conveyor 1, so it will not cause obstruction during the rotation process, the rotating bulldozer plate 2326 will drive multiple cone heads 2324 to loosen the soil in the foundation pit, and drive the soil to approach the one end of the conveyor 1, when the limiting slide block 237 drives the clamping rod 2316 to move and clamp into the bottom end inclined displacement clamping frame 236, it will push the clamping plate 2315 under the clamping rod 2316 through the bottom end inclined displacement clamping frame 236, so that the clamping plate 2315 drives the U-shaped push block 2317 to make the first gear 2311 deviate from one end, during the subsequent retraction movement of the electric cylinder 211, the first gear 2311 does not contact and engage with the tooth short plate 235, so that the bulldozer plate 2326 can continuously maintain the horizontal movement path to bring the soil to the one end of the conveyor 1 for continuous conveying operation, at the same time, the extension and retraction of the electric cylinder 235 will drive the tooth long plate 213 to move synchronously, which will immediately engage with the second gear 224, so that the second gear 224 drives the double-direction threaded screw rod 222 to rotate, thereby driving the two vertical frames 225 to move in opposite directions in the U-shaped plate frame 240, the two guide rods 239 guide the horizontal movement of the two vertical frames 225, the above can crush the large clotted soil through the crushing cone 226 on the two toothed cone plates 241, to avoid the large clotted soil from causing blockage of the conveyor 1 and blocking the smooth conveying of the soil, during the operation of the whole soil feeding mechanism 2, the long cover box 2325 and the short cover box 227 will block the soil corresponding to the structure, thereby improving the rapid transfer of the soil in the foundation pit.

[0060] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application, the protection scope of the present application should be the technical solutions recited in the claims, including the equivalent replacement solutions of the technical features recited in the claims. That is, within this range, equivalent replacement improvements are also within the protection scope of the present application.

Claims

1. A rapid soil transfer device for deep foundation pits, comprising an inclined conveyor (1), characterized in that: The inclined bottom end of the conveyor (1) is provided with a soil feeding mechanism (2). The soil feeding mechanism (2) includes a soil loosening and pushing component (23) for loosening and pushing soil, a crushing component (22) provided behind the soil loosening and pushing component (23) for crushing large pieces of soil, and a driving component (21) for simultaneously driving the soil loosening and pushing component (23) and the crushing component (22). The loosening bulldozing assembly (23) includes a limiting guide structure disposed on the bottom side of the conveyor (1) and extending to its outside, a sliding structure slidably disposed on the limiting guide structure and connected to the drive assembly (21) for transmission, and a bulldozing plate (2326) rotatably disposed through the sliding structure. The bulldozing plate (2326) is located above the conveyor (1) and has a loosening structure on one side. A first rotating engagement structure is provided at one end of the bulldozing plate (2326) that passes through the sliding structure, which is used to make the bulldozing plate (2326) rotate. The limiting guide structure includes a limiting plate groove (232) provided on the side of the conveyor (1), a support plate (231) provided on the other side of the limiting plate groove (232), and a through groove (234) provided on the limiting plate groove (232). The front ends of the limiting plate groove (232) and the support plate (231) extend to the outside of the conveyor (1). The sliding structure includes a limiting slider (237), the bottom of the limiting slider (237) is provided with a convex block (238) that is slidably connected to the limiting plate groove (232), the bottom of the convex block (238) is provided with a connecting rod (2322) that passes through the through groove (234) and is connected to the cylinder rod (212), and the end of the bulldozer plate (2326) is provided with a rotating shaft (239) that rotates through the limiting slider (237); The first rotary meshing structure includes a first gear (2311) disposed at the end of the rotating shaft (239) and a toothed short plate (235) disposed on the support plate (231). The toothed short plate (235) is located on the part of the support plate (231) that extends beyond the conveyor (1). When the limiting slider (237) slides, the toothed short plate (235) can mesh with the first gear (2311) to make it rotate. The first gear (2311) and the rotating shaft (239) are connected in a way that allows for lateral movement. Multiple transverse grooves (2310) are provided on the outside of the connection point of the rotating shaft (239). Multiple transverse blocks (2312) corresponding to the transverse grooves (2310) are provided on the inner ring wall of the first gear (2311). The transverse blocks (2312) are slidably connected to the corresponding transverse grooves (2310). The limiting slider (237) is also provided with a limiting snap-fit ​​structure for pushing the first gear (2311) to move laterally. The limiting latching structure includes a rectangular groove (2313) in the limiting slider (237) and a displacement groove (2314) connected to the rectangular groove (2313) at the top of the limiting slider (237). The rectangular groove (2313) is open on the side near the first gear (2311). A latching plate (2315) with its end extending out of the opening is slidably disposed in the rectangular groove (2313). The end of the latching plate (2315) is connected to a U-shaped push block (2317) fitted outside the first gear (2311). A latching rod (2316) penetrating the displacement groove (2314) is provided at the top front end of the latching plate (2315). The top of each end of the limiting plate groove (232) is provided with an inclined displacement bracket (236) that can fit and engage with the clamping rod (2316). The two inclined displacement brackets (236) are not located on the same horizontal line. The opposite ends of the two inclined displacement brackets (236) are provided with inclined guide grooves. When the clamping rod (2316) slides into the inclined displacement bracket (236), the clamping rod (2316) moves laterally under the guidance of the inclined groove of the inclined displacement bracket (236), pushing and pulling the first gear (2311).

2. The rapid soil transfer device in a deep foundation pit according to claim 1, characterized in that: The crushing assembly (22) includes a U-shaped plate frame (221) mounted on the conveyor (1). The U-shaped plate frame (221) contains two guide rods (223) and a rotatable screw (222). The screw (222) consists of two opposite threaded rods. The two threaded rods are respectively threaded with crushing structures, and the crushing structures are slidably connected to the two guide rods (223). The end of the screw (222) near the drive assembly (21) passes through the U-shaped plate frame (221) and is provided with a second gear (224) that is connected to the drive assembly (21) for transmission.

3. The rapid soil transfer device in a deep foundation pit according to claim 2, characterized in that: The drive assembly (21) includes an electric cylinder (211) disposed on the side of the conveyor (1), and a cylinder (212) disposed at the output end of the electric cylinder (211). The top end of the cylinder (212) is connected to a sliding structure, and a toothed plate (213) is disposed on the outside to mesh with the second gear (224).

4. A rapid soil transfer device for deep foundation pits according to any one of claims 2-3, characterized in that: The soil loosening structure includes multiple L-shaped support poles (2323) set on one side of the bulldozer plate (2326), and a cone (2324) set on one end of each L-shaped support pole (2323).

5. The rapid soil transfer device in a deep foundation pit according to claim 1, characterized in that: A one-way pawl assembly is also provided between the rotating shaft (239) and the limiting slider (237). The one-way pawl assembly includes a ratchet (2318) disposed outside the rotating shaft (239), a pawl (2319) rotatably disposed on the side of the limiting slider (237) and in contact with the ratchet (2318), and a clamping spring (2320) disposed on the side of the limiting slider (237) and in contact with the pawl (2319). Two sets of limiting springs (2321) are symmetrically arranged on the inner wall of the displacement groove (2314), with two springs in each set, located on opposite inner wall surfaces of the displacement groove (2314).

6. The rapid soil transfer device in a deep foundation pit according to claim 2, characterized in that: The crushing structure includes a vertical frame (225) threadedly connected to the screw (222) and slidably connected to two guide rods (223), and a plurality of crushing cones (226) disposed on opposite sides of the two vertical frames (225); A short cover box (227) covering the outside of the second gear (224) is provided on one side of the U-shaped plate frame (221). The limiting plate groove (232) and the support plate (231) are covered by a long cover box (2325), and the side of the long cover box (2325) is provided with a through groove for the rotating shaft (239) to pass through.

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