Mud cleaning device for internal support of deep foundation pit

Abstract

This invention discloses a sludge cleaning device for internal supports in deep foundation pits, used for cleaning steel supports within deep foundation pits. The device includes a support ring, an input mechanism, an output mechanism, and an auxiliary sliding component. The support ring is fitted onto the steel support and includes an upper support ring and a lower support ring detachably connected to the upper support ring. The upper support ring has an upper ring groove, and the lower support ring has a lower ring groove, which are joined to form an annular flow channel. The input mechanism is located on the support ring and communicates with the annular flow channel, used to input fluid into the annular flow channel. The output mechanism is located on the support ring and communicates with the annular flow channel, used to output the fluid from the annular flow channel toward the outer surface of the steel support for cleaning. The auxiliary sliding component is located on the support ring and used to allow the support ring to slide against the steel support.

Description

Technical Field

[0001] This invention relates to the field of deep foundation pit sludge removal technology, and in particular, to a sludge removal device for internal support in deep foundation pits. Background Technology

[0002] With the rapid pace of urban development, deep foundation pit projects are becoming increasingly common in cities. In these projects, steel supports are widely used due to their rapid and efficient installation and reusability.

[0003] In actual construction, steel supports are installed continuously as the excavation of the foundation pit progresses. After one steel support is installed, the excavation continues, leaving the steel supports suspended in the air. However, during the excavation process, silt inevitably falls, which is difficult to remove from the suspended support steel pipes. This silt often becomes a safety hazard on site. Therefore, an automatic cleaning device that can easily and efficiently clean silt from the steel supports without requiring workers to risk climbing on them at heights is essential.

[0004] Chinese invention patent application number 202223356843.4 discloses a device for removing silt from steel plates in deep foundation pits. The device uses a movable shovel head controlled by an operator to remove the silt attached to the steel plate. However, when using the shovel head to remove silt, the shovel head is prone to wear on the steel when it moves on the steel, which in turn affects the service life of the steel support. Summary of the Invention

[0005] This invention provides a silt removal device for internal supports of deep foundation pits, in order to solve the technical problem of how to reduce wear on steel supports during silt removal, thereby improving the service life of the steel supports.

[0006] According to the present invention, a sludge cleaning device for internal supports in deep foundation pits is provided for cleaning steel supports within deep foundation pits. The device includes a support ring, an input mechanism, an output mechanism, and an auxiliary sliding member. The support ring is fitted onto the steel support and includes an upper support ring and a lower support ring detachably connected to the upper support ring. The upper support ring has an upper ring groove, and the lower support ring has a lower ring groove. The upper and lower ring grooves are joined to form an annular flow channel. The input mechanism is disposed on the support ring and communicates with the annular flow channel, and is used to input fluid into the annular flow channel. The output mechanism is disposed on the support ring and communicates with the annular flow channel, and is used to output the fluid in the annular flow channel toward the outer surface of the steel support to clean the outer surface of the steel support. The auxiliary sliding member is disposed on the support ring and is used to allow the support ring to slide against the steel support.

[0007] Furthermore, the upper annular groove includes a first upper support groove and a second upper support groove spaced apart along the axial direction of the support ring, the lower annular groove includes a first lower support groove and a second lower support groove spaced apart along the axial direction of the support ring, and the annular flow channel includes a first annular channel and a second annular channel spaced apart along the axial direction of the support ring. The first annular channel is formed by the first upper support groove and the first lower support groove being joined together, and the second annular channel is formed by the second upper support groove and the second lower support groove being joined together.

[0008] Furthermore, the input mechanism includes a connector and a first input pipe. The connector is fixedly connected to the support ring and is used to communicate with the delivery end of external fluid. The first end of the first input pipe is connected to the connector, and the second end of the first input pipe is connected to the annular flow channel. The output mechanism includes a first nozzle. The first nozzle is fixed to the inner sidewall of the support ring and is used to communicate with the annular flow channel. The nozzle of the first nozzle is directed toward the steel support so that the fluid in the annular flow channel is discharged from the first nozzle and cleaned toward the steel support.

[0009] Furthermore, the first input pipe and the first nozzle are respectively connected to the first annular branch. The input mechanism also includes a second input pipe, the first end of which is connected to the connector, and the second end of which is connected to the second annular branch. The output mechanism also includes a second nozzle, which is fixed on the inner sidewall of the support ring and connected to the second annular branch. The outlet of the second nozzle is directed toward the steel support. The nozzle of the first nozzle is inclined toward one end of the support ring along its axial direction, and the nozzle of the second nozzle is inclined toward the other end of the support ring along its axial direction.

[0010] Furthermore, the output mechanism is provided in multiple sets, and the multiple sets of output mechanisms are evenly distributed along the circumferential distance of the support ring.

[0011] Furthermore, the support ring is also provided with a direction adjustment mechanism, which includes a movable plate slidably connected to the support ring. The movable plate is provided with a first extrusion slit for extruding the first input tube and a second extrusion slit for extruding the second input tube.

[0012] The movable plate is used to slide relative to the support ring along the axial direction of the support ring to a first use state or a second use state. The first use state of the movable plate is that the first extrusion seam extrudes the first input pipe and the second extrusion seam disengages from the second input pipe. The second use state of the movable plate is that the second extrusion seam extrudes the second input pipe and the first extrusion seam disengages from the first input pipe.

[0013] The first nozzle is used to push the support ring to move one end along its axial direction, and when the support ring moves to the first limit position, it drives the moving plate to slide to the first use state.

[0014] The second nozzle is used to push the support ring to move along its axial direction at the other end, and when the support ring (200) moves to the second limit position, it drives the moving plate to slide to the second use state.

[0015] Furthermore, the two ends of the movable plate are provided with extension plates to facilitate the movement of the movable plate.

[0016] Furthermore, the auxiliary sliding member includes multiple support rods and multiple pulleys. The multiple support rods are spaced apart along the circumference of the support ring on the inner sidewall of the support ring. The pulleys are arranged in a one-to-one correspondence with the support rods and are rotatably connected to the support rods. The pulleys are used to roll along the surface of the steel support.

[0017] Furthermore, the upper support ring is provided with an upper mating plate, and the lower support ring is provided with a lower mating plate, the upper mating plate and the lower mating plate being connected by bolts.

[0018] Furthermore, a sealing gasket to prevent fluid leakage is provided at the connection between the upper support ring and the lower support ring.

[0019] The present invention has the following beneficial effects:

[0020] In the sludge cleaning device for deep foundation pit internal support of the present invention, the splicing method of the upper and lower support rings facilitates the installation of the support rings on the steel support. The annular flow channel formed by the splicing of the upper and lower ring grooves serves as a fluid transfer space. The input mechanism is used to continuously input external fluid into the annular flow channel, and the output mechanism is used to output the fluid in the annular flow channel toward the outer surface of the steel support to clean the outer surface of the steel support. The support ring can slide on the steel support under the action of the auxiliary sliding member, so that the fluid output by the output mechanism can clean the surface of the steel support. The fluid can be tap water or introduced air, which is convenient and quick to obtain.

[0021] In practice, the upper support ring is placed on the steel support that needs to be cleaned, and then the lower support ring is spliced ​​with the upper support ring to form a complete support ring. Then the input mechanism is turned on to allow external fluid to be input into the annular flow channel. At this time, the fluid is flushed on the outer surface of the steel support through the output mechanism. During the process, the support ring can be moved under the action of the auxiliary sliding parts to make the surface of the steel support more thoroughly cleaned.

[0022] In summary, by setting input and output mechanisms on the support ring to facilitate the cleaning of the steel support surface by fluid, compared with the existing technology of using a shovel to clean the steel support, the fluid cleaning method is gentler and can effectively reduce the wear on the steel support during cleaning, thereby improving the service life of the steel support.

[0023] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 This is a schematic diagram of the assembly of the silt removal device and the steel support for the deep foundation pit internal support in a preferred embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the silt removal device for deep foundation pit internal support according to a preferred embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of the movable plate according to a preferred embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the arrangement of the auxiliary sliding member according to a preferred embodiment of the present invention.

[0029] Legend:

[0030] 100. Steel support;

[0031] 200. Support ring; 201. Upper support ring; 202. Upper ring groove; 203. First upper support groove; 204. Second upper support groove; 205. Lower support ring; 206. Lower ring groove; 207. First lower support groove; 208. Second lower support groove; 209. Upper mating plate; 210. Lower mating plate; 211. Sealing gasket;

[0032] 300. Connector; 301. First input tube; 302. Second input tube;

[0033] 400, First output pipe; 401, First nozzle; 402, Second output pipe; 403, Second nozzle;

[0034] 500, Movable plate; 501, First movable hole; 502, Second movable hole; 503, First extrusion block; 504, First extrusion seam; 505, Second extrusion block; 506, Second extrusion seam; 507, Extension plate;

[0035] 600, support rod; 601, pulley. Detailed Implementation

[0036] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0037] like Figures 1-2 As shown in this embodiment, a silt removal device for deep foundation pit internal supports is used to clean steel supports 100 inside the deep foundation pit. It includes a support ring 200, an input mechanism, an output mechanism, and auxiliary sliding components. The support ring 200 is fitted onto the steel support 100. The support ring 200 includes an upper support ring 201 and a lower support ring 205 detachably connected to the upper support ring 201. The upper support ring 201 has an upper ring groove 202, and the lower support ring 205 has a lower ring groove 206. The upper ring groove 202 and the lower ring groove 206 are connected... The grooves 206 are spliced ​​to form an annular flow channel; the input mechanism is disposed on the support ring 200 and communicates with the annular flow channel, and the input mechanism is used to input fluid into the annular flow channel; the output mechanism is disposed on the support ring 200 and communicates with the annular flow channel, and the output mechanism is used to output the fluid in the annular flow channel toward the outer surface of the steel support 100 to clean the outer surface of the steel support 100; the auxiliary sliding member is disposed on the support ring 200 and is used to make the support ring 200 and the steel support 100 slidably connected.

[0038] In this embodiment, the support ring 200 can be a circular ring or a square ring, and its specific shape is determined by the steel support 100 that needs to be cleaned. The cleaning fluid is readily available water or air. The input mechanism is connected to an external pump to continuously input the fluid into the annular flow channel so as to clean the surface of the steel support 100 through the fluid.

[0039] Specifically, the splicing method of the upper support ring 201 and the lower support ring 205 facilitates the installation of the support ring 200 on the steel support 100. The annular flow channel formed by the splicing of the upper ring groove 202 and the lower ring groove 206 serves as a fluid transfer space. The input mechanism is used to continuously input external fluid into the annular flow channel, and the output mechanism is used to output the fluid in the annular flow channel toward the outer surface of the steel support 100 to clean the outer surface of the steel support 100. The support ring 200 can slide on the steel support 100 under the action of the auxiliary sliding member, so that the fluid output by the output mechanism can clean the surface of the steel support 100. The fluid can be tap water or introduced air, which is convenient and quick to obtain.

[0040] In practice, the upper support ring 201 is placed on the steel support 100 that needs to be cleaned, and then the lower support ring 205 is spliced ​​with the upper support ring 201 to form a complete support ring 200. Then the input mechanism is turned on to allow external fluid to be input into the annular flow channel. At this time, the fluid is flushed on the outer surface of the steel support 100 through the output mechanism. During the process, the support ring 200 can be moved under the action of the auxiliary sliding member so that the surface of the steel support 100 can be cleaned more completely.

[0041] In summary, by setting an input mechanism and an output mechanism on the support ring 200, the fluid can be used to clean the surface of the steel support 100. Compared with the existing method of cleaning the steel support 100 with a shovel, the fluid cleaning method is gentler and can effectively reduce the wear on the steel support 100 during cleaning, thereby improving the service life of the steel support 100.

[0042] Further, the upper annular groove 202 includes a first upper support groove 203 and a second upper support groove 204 spaced apart along the axial direction of the support ring 200, the lower annular groove 206 includes a first lower support groove 207 and a second lower support groove 208 spaced apart along the axial direction of the support ring 200, and the annular flow channel includes a first annular channel and a second annular channel spaced apart along the axial direction of the support ring 200. The first annular channel is formed by the first upper support groove 203 and the first lower support groove 207, and the second annular channel is formed by the second upper support groove 204 and the second lower support groove 208.

[0043] In this embodiment, the upper annular groove 202 includes a first upper support groove 203 and a second upper support groove 204, and the lower annular groove 206 includes a first lower support groove 207 and a second lower support groove 208. After the upper annular groove 202 and the lower annular groove 206 are spliced ​​together, a first annular branch and a second annular branch are formed. At this time, the input mechanism will input fluid into the first annular branch and the second annular branch respectively, and then the output mechanism will be used to connect with the first annular branch and the second annular branch respectively, thereby forming two independent fluid cleaning channels. With this setting, on the one hand, the fluid cleaning area can be increased, and on the other hand, it can prevent the steel support 100 from being cleaned even if one branch fails.

[0044] Furthermore, the input mechanism includes a connector 300 and a first input pipe 301. The connector 300 is fixedly connected to the support ring 200 and is used to connect to the delivery end of external fluid. The first end of the first input pipe 301 is connected to the connector 300, and the second end of the first input pipe 301 is connected to the annular flow channel. The output mechanism includes a first nozzle 401. The first nozzle 401 is fixed on the inner sidewall of the support ring 200 and is used to connect to the annular flow channel. The nozzle of the first nozzle 401 is directed toward the steel support 100 so that the fluid in the annular flow channel is discharged from the first nozzle 401 and cleaned toward the steel support 100.

[0045] In this embodiment, the input mechanism includes a connector 300 and a first input pipe 301. The connector 300 is fixedly connected to the support ring 200 for connecting to the external fluid delivery end. The first end of the first input pipe 301 is connected to the connector 300, and the second end of the first input pipe 301 is connected to the first annular branch. The output mechanism includes a first output pipe 400 and a first nozzle 401. The first nozzle 401 is fixed on the inner sidewall of the support ring 200. The outlet of the first nozzle 401 is directed toward the steel support 100. The first end of the first output pipe 400 is connected to the first annular branch, and the second end of the first output pipe 400 is connected to the first nozzle 401, so that the fluid in the first annular branch is discharged through the first output pipe 400 and the first nozzle 401 and cleaned toward the steel support 100.

[0046] Specifically, the input mechanism includes a connector 300 and a first input pipe 301. The connector 300 is fixed to the support ring 200. Preferably, the connector 300 can be installed on the outer side of the support ring 201 in the radial direction to facilitate connection to external pipes and the pump body, allowing fluid to be input into the first input pipe 301 through the connector 300. The first end of the first input pipe 301 is connected to the connector 300, and the second end of the first input pipe 301 extends into the support ring 200 and communicates with the first annular branch. The output mechanism includes a first output pipe 400 communicating with the first annular branch and a first nozzle 401 connected to the first output pipe 400. The first nozzle 401 is disposed on the support ring 200 with its nozzle facing the steel support 100. In a preferred embodiment, the axis of the first nozzle 401 forms an angle with the axis of the support ring 200, and the first nozzle 401 is rotatably connected to the support ring 200, allowing adjustment of the spray direction of the first nozzle 401, thereby increasing the cleaning range.

[0047] Furthermore, the first input pipe 301 and the first nozzle 401 are respectively connected to the first annular branch. The input mechanism also includes a second input pipe 302, the first end of which is connected to the connector 300, and the second end of which is connected to the second annular branch. The output mechanism also includes a second nozzle 403, which is fixed on the inner sidewall of the support ring 200 and connected to the second annular branch. The outlet of the second nozzle 403 is directed toward the steel support 100. The nozzle of the first nozzle 401 is inclined toward one end of the support ring 200 in the axial direction, and the nozzle of the second nozzle 403 is inclined toward the other end of the support ring 200 in the axial direction.

[0048] Furthermore, the input mechanism also includes a second input pipe 302, the first end of which is connected to the connector 300, and the second end of which is connected to the second annular branch. The output mechanism also includes a second output pipe 402 and a second nozzle 403. The second nozzle 403 is fixed on the inner wall of the support ring 200, and the outlet of the second nozzle 403 is directed toward the steel support 100. The first nozzle 401 and the second nozzle 403 are respectively disposed on both sides of the support ring 200 in the thickness direction. The nozzle of the first nozzle 401 is inclined toward the direction away from the center plane of symmetry in the thickness direction of the support ring 200, and the nozzle of the second nozzle 403 is inclined toward the direction away from the center plane of symmetry in the thickness direction of the support ring 200.

[0049] In this embodiment, the input mechanism further includes a second input pipe 302, the first end of which is connected to the connector 300, and the second end of which is connected to the second annular branch. The output mechanism further includes a second output pipe 402 and a second nozzle 403. The outlet of the second nozzle 403 is directed toward the steel support 100. The first nozzle 401 and the second nozzle 403 are respectively disposed on both sides of the support ring 200 in the thickness direction. The nozzle of the first nozzle 401 is inclined toward the direction away from the center plane of symmetry in the thickness direction of the support ring 200, and the nozzle of the second nozzle 403 is inclined toward the direction away from the center plane of symmetry in the thickness direction of the support ring 200. That is, the first nozzle 401 and the second nozzle 403 are oriented in opposite directions. With this arrangement, both sides of the support ring 200 can be rinsed and cleaned at the same time, thereby increasing the cleaning area.

[0050] Furthermore, the output mechanism is provided in multiple sets, and the multiple sets of output mechanisms are evenly distributed at intervals along the circumference of the support ring 200.

[0051] In this embodiment, the circumferentially spaced arrangement of multiple output mechanisms enables comprehensive cleaning of the outer periphery of the steel support 100, thereby improving the efficiency of sludge removal from the steel support 100.

[0052] Reference Figure 3 The support ring 200 is also provided with a direction adjustment mechanism, which includes a movable plate 500 slidably connected to the support ring 200. The movable plate 500 is provided with a first extrusion slit 504 for extruding the first input tube 301 and a second extrusion slit 506 for extruding the second input tube 302.

[0053] The movable plate 500 is used to slide relative to the support ring 200 along the axial direction of the support ring 200 to a first use state or a second use state. The first use state of the movable plate 500 is that the first extrusion slit 504 extrudes the first input tube 301 and the second extrusion slit 506 disengages from the second input tube 302. The second use state of the movable plate 500 is that the second extrusion slit 506 extrudes the second input tube 302 and the first extrusion slit 504 disengages from the first input tube 301.

[0054] The first nozzle 401 is used to push the support ring 200 to move one end along its axial direction, and when the support ring 200 moves to the first limit position, it drives the moving plate 500 to slide to the first use state;

[0055] The second nozzle 403 is used to push the support ring 200 to move along its axial direction at the other end, and when the support ring 200 moves to the second limit position, it drives the moving plate 500 to slide to the second use state.

[0056] In this embodiment, the support ring 200 is further provided with a direction adjustment mechanism for controlling the movement direction of the support ring 200. The direction adjustment mechanism includes a moving plate 500, a first pressing block 503, and a second pressing block 505. The moving plate 500 is disposed on the support ring 200 and has a first movable hole 501 and a second movable hole 502. A first input pipe 301 passes through the first movable hole 501, and a second input pipe 302 passes through the second movable hole 502. The first pressing block 503 is disposed on the moving plate 500 and located within the first movable hole 501. A first extrusion slit 504 is formed on the first extrusion block 503, which communicates with the first movable hole 501. The first extrusion slit 504 is used to extrude the first input pipe 301 so that the first input pipe 301 stops supplying fluid to the first annular branch. A second extrusion block 505 is disposed on the movable plate 500 and located in the second movable hole 502. A second extrusion slit 506 is formed on the second extrusion block 505, which communicates with the second movable hole 502. The second extrusion slit 506 is used to extrude the first input pipe 301 so that the second input pipe 302 stops supplying fluid to the second annular branch.

[0057] Specifically, both the first movable hole 501 and the second movable hole 502 are strip-shaped holes. The first extrusion block 503 is installed in the first movable hole 501, and the second extrusion block 505 is installed in the second movable hole 502. A first extrusion slit 504 is formed on the first extrusion block 503, and the end of the first extrusion slit 504 that connects with the first movable hole 501 has a guide slope that facilitates the insertion of the first input tube 301. A second extrusion slit 506 is formed on the second extrusion block 505, and the end of the second extrusion slit 506 that connects with the second movable hole 502 has a guide slope that facilitates the insertion of the second input tube 302.

[0058] In specific implementation, when the first input pipe 301 is embedded in the first extrusion slit 504, the first input pipe 301 is compressed, interrupting the fluid input into the first annular flow channel. At this time, the fluid is only input into the second annular flow channel through the second input pipe 302 and output through the second nozzle 403. When the second nozzle 403 sprays fluid, the support ring 200 is subjected to a counter-thrust force, causing the support ring 200 to slide on the steel support 100 in a direction away from the second nozzle 403. Similarly, when the second input pipe 302 is embedded in the second extrusion slit 506, the second input pipe 302 is compressed. The fluid input to the second annular flow channel is interrupted. At this time, the fluid is only input to the first annular flow channel through the first input pipe 301 and output through the first nozzle 401. When the first nozzle 401 sprays out fluid, the support ring 200 is subjected to a counter-thrust force, so that the support ring 200 slides on the steel support 100 in a direction away from the first nozzle 401. The direction adjustment mechanism can adjust the movement direction of the support ring 200 on the steel support 100, so that the support ring 200 can move back and forth on the steel support 100 along the length direction, thereby repeatedly cleaning the sludge on the steel support 100.

[0059] Furthermore, the movable plate 500 is slidably connected to the support ring 200 and slides along the thickness direction of the support ring 200, and extension plates 507 are provided at both ends of the movable plate 500 to facilitate pushing the movable plate 500 to move.

[0060] In this embodiment, the movable plate 500 can slide along the thickness direction of the support ring 200. The extension plate 507 is used to facilitate pulling the movable plate 500 to embed the first input pipe 301 into the first extrusion slot 504, or to embed the second input pipe 302 into the second extrusion slot 506. In specific implementation, the first extrusion slot 504 and the second extrusion slot 506 are arranged opposite to each other. After the first extrusion block 503 pressurizes the first input pipe 301, it prevents the first nozzle 401 from spraying fluid. At this time, only the second nozzle 403 sprays fluid. The fluid pushes the support ring 200 to move towards the first nozzle 401 on the steel support 100 until the extension plate 507 near the first nozzle 401 abuts against the connecting flange at the end of the steel support 100, so that the extension plate 507 pushes the movable plate 500 to move towards the second nozzle 403, thereby making the first input pipe 301... The fluid exits the first extrusion slit 504 and enters the first movable hole 501. The second input pipe 302 is embedded in the second extrusion slit 506. At this time, the first nozzle 401 sprays out fluid, which pushes the support ring 200 to move on the steel support 100 toward the direction of the second nozzle 403 until the extension plate 507 near the second nozzle 403 abuts against the connecting flange at the end of the steel support 100. This causes the extension plate 507 to push the moving plate 500 to move again toward the direction of the first nozzle 401, thereby realizing the reciprocating motion of the support ring 200 to clean the sludge on the steel support 100 back and forth.

[0061] Reference Figure 4 The auxiliary sliding component includes multiple support rods 600 and multiple pulleys 601. The multiple support rods 600 are arranged at intervals along the circumference of the support ring 200 on the inner sidewall of the support ring 200. The pulleys 601 are arranged one-to-one with the support rods 600 and are rotatably connected to the support rods 600. The pulleys 601 are used for rolling connection with the steel support 100.

[0062] In this embodiment, the pulley 601 is rolled to the steel support, which reduces the friction of the support ring 200 when it moves on the steel support 100, so that the support ring 200 can move smoothly on the steel support 100.

[0063] Furthermore, the upper support ring 201 is provided with an upper mating plate 209, and the lower support ring 205 is provided with a lower mating plate 210. The upper mating plate 209 and the lower mating plate 210 are connected by bolts. In this embodiment, in order to ensure that the upper mating plate 209 and the lower mating plate 210 can be accurately aligned during connection, a positioning protrusion can be provided on the upper mating plate 209, and a positioning groove can be provided on the lower mating plate 210. After positioning by the cooperation of the protrusion and the groove, the connection and fixation are carried out by bolts.

[0064] Furthermore, a sealing gasket 211 to prevent fluid leakage is provided at the connection between the upper support ring 201 and the lower support ring 205.

[0065] In this embodiment, the sealing gasket 211 can effectively prevent fluid leakage, thereby ensuring the pressure of the fluid ejected from the first nozzle 401 and the second nozzle 403, and thus ensuring effective cleaning of the surface of the steel support 100.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A silt removal device for internal supports of deep foundation pits, used for cleaning steel supports (100) inside deep foundation pits, characterized in that, include: A support ring (200) is used to be sleeved on the steel support (100). The support ring (200) includes an upper support ring (201) and a lower support ring (205) detachably connected to the upper support ring (201). An upper ring groove (202) is provided on the upper support ring (201), and a lower ring groove (206) is provided on the lower support ring (205). The upper ring groove (202) and the lower ring groove (206) are joined together to form an annular flow channel. An input mechanism is disposed on the support ring (200) and communicates with the annular flow channel, the input mechanism being used to input fluid into the annular flow channel; An output mechanism is provided on the support ring (200) and communicates with the annular flow channel. The output mechanism is used to output the fluid in the annular flow channel toward the outer surface of the steel support (100) to clean the outer surface of the steel support (100). An auxiliary sliding member is disposed on the support ring (200) and is used to slidably connect the support ring (200) with the steel support (100); The upper annular groove (202) includes a first upper support groove (203) and a second upper support groove (204) spaced apart along the axial direction of the support ring (200). The lower annular groove (206) includes a first lower support groove (207) and a second lower support groove (208) spaced apart along the axial direction of the support ring (200). The annular flow channel includes a first annular branch and a second annular branch spaced apart along the axial direction of the support ring (200). The first annular branch is formed by the first upper support groove (203) and the first lower support groove (207) being joined together. The second annular branch is formed by the second upper support groove (204) and the second lower support groove (208) being joined together. The input mechanism includes a connector (300) and a first input pipe (301). The connector (300) is fixedly connected to the support ring (200) and is used to communicate with the external fluid delivery end. The first end of the first input pipe (301) is connected to the connector (300), and the second end of the first input pipe (301) is connected to the annular flow channel. The output mechanism includes a first nozzle (401). The first nozzle (401) is fixed on the inner sidewall of the support ring (200) and is used to communicate with the annular flow channel. The nozzle of the first nozzle (401) is directed toward the steel support (100) so that the fluid in the annular flow channel is discharged from the first nozzle (401) and cleaned toward the steel support (100). The first input pipe (301) and the first nozzle (401) are respectively connected to the first annular branch. The input mechanism also includes a second input pipe (302). The first end of the second input pipe (302) is connected to the connector (300), and the second end of the second input pipe (302) is connected to the second annular branch. The output mechanism also includes a second nozzle (403). The second nozzle (403) is fixed on the inner side wall of the support ring (200) and is connected to the second annular branch. The outlet of the second nozzle (403) is used to face the steel support (100). The nozzle of the first nozzle (401) is inclined toward one end of the support ring (200) in the axial direction, and the nozzle of the second nozzle (403) is inclined toward the other end of the support ring (200) in the axial direction. The support ring (200) is also provided with a direction adjustment mechanism for controlling the movement direction of the support ring (200). The direction adjustment mechanism includes a moving plate (500), a first pressing block (503), and a second pressing block (505). The moving plate (500) is disposed on the support ring (200). The moving plate (500) has a first movable hole (501) and a second movable hole (502). The first input pipe (301) passes through the first movable hole (501), and the second input pipe (302) passes through the second movable hole (502). The first pressing block (503) is disposed on the moving plate (500) and located inside the first movable hole (501). A first pressing slit (504) is formed on the first pressing block (503) and communicates with the first movable hole (501). The first pressing slit (504) is connected to the first pressing hole (501). The first movable hole (501) has a guide slope at its connecting end to facilitate the insertion of the first input pipe (301). The first extrusion slit (504) is used to extrude the first input pipe (301) so that the first input pipe (301) stops supplying fluid to the first annular branch. The second extrusion block (505) is disposed on the movable plate (500) and located inside the second movable hole (502). A second extrusion slit (506) is formed on the second extrusion block (505) and communicates with the second movable hole (502). The connecting end of the second extrusion slit (506) and the second movable hole (502) has a guide slope to facilitate the insertion of the second input pipe (302). The second extrusion slit (506) is used to extrude the second input pipe (302) so that the second input pipe (302) stops supplying fluid to the second annular branch. The movable plate (500) is used to slide relative to the support ring (200) along the axial direction of the support ring (200) to a first use state or a second use state. The first use state of the movable plate (500) is that the first extrusion slit (504) extrudes the first input tube (301) and the second extrusion slit (506) disengages from the second input tube (302). The second use state of the movable plate (500) is that the second extrusion slit (506) extrudes the second input tube (302) and the first extrusion slit (504) disengages from the first input tube (301). The first nozzle (401) is used to push the support ring (200) to move one end along its axial direction, and when the support ring (200) moves to the first limit position, it drives the moving plate (500) to slide to the first use state; The second nozzle (403) is used to push the support ring (200) to move along its axial direction at the other end, and when the support ring (200) moves to the second limit position, it drives the moving plate (500) to slide to the second use state.

2. The silt removal device for deep foundation pit internal support according to claim 1, characterized in that, The output mechanism is provided in multiple sets, and the multiple sets of output mechanisms are evenly distributed along the circumferential distance of the support ring (200).

3. The silt removal device for deep foundation pit internal support according to claim 1, characterized in that, The movable plate (500) has extension plates (507) at both ends to facilitate the movement of the movable plate (500).

4. The silt removal device for deep foundation pit internal support according to any one of claims 1 to 3, characterized in that, The auxiliary sliding component includes multiple support rods (600) and multiple pulleys (601). The multiple support rods (600) are arranged at intervals along the circumference of the support ring (200) on the inner sidewall of the support ring (200). The pulleys (601) are arranged one-to-one with the support rods (600) and are rotatably connected to the support rods (600). The pulleys (601) are used to roll along the surface of the steel support (100).

5. The silt removal device for deep foundation pit internal support according to any one of claims 1 to 3, characterized in that, The upper support ring (201) is provided with an upper connecting plate (209), and the lower support ring (205) is provided with a lower connecting plate (210). The upper connecting plate (209) and the lower connecting plate (210) are connected by bolts.

6. The silt removal device for deep foundation pit internal support according to any one of claims 1 to 3, characterized in that, A sealing gasket (211) to prevent fluid leakage is provided at the connection between the upper support ring (201) and the lower support ring (205).

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