A marking mechanism for deep foundation pit construction

Abstract

The application relates to the technical field of deep foundation pit construction auxiliary equipment, and discloses a marking mechanism for deep foundation pit construction, which comprises a rack, a stock bin installed on the rack, a discharging groove formed in the bottom of the stock bin, a discharging channel installed on the bottom of the stock bin and arranged in an inclined downward manner, a lower end of the discharging channel being provided with a discharging port, an adjusting plate rotatably connected to the lower end of the discharging channel, the adjusting plate controlling the size of the discharging port through rotation, a control assembly for controlling the rotating angle of the adjusting plate, an on-off plate installed in the discharging channel and used for plugging or opening the discharging channel, and a linkage rod connecting the adjusting plate and the on-off plate, the discharging channel being opened when the linkage rod drives the on-off plate to rotate and leave an inner wall of the discharging channel when the adjusting plate is rotated downward to increase the discharging port. The application can control the discharging amount of marking materials and the marking width.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of deep foundation pit construction auxiliary equipment, in particular to a marking mechanism for deep foundation pit construction. BACKGROUND

[0002] At present, the urbanization process is accelerated, and subway engineering, as a core project of urban traffic construction, continuously expands in scale and quantity. Earthwork excavation is a key link in subway foundation construction, and accurate marking of the excavation line is of great significance to subsequent construction. The traditional manual grabbing and throwing of lime marking method cannot guarantee the clear and accurate excavation line due to unstable marking effect, which may cause deviation in subsequent earthwork excavation and affect the safety and stability of the subway foundation structure, and it is difficult to meet the progress demand of large-scale and high-intensity subway engineering.

[0003] The existing hand-pushed lime powder line vehicle can uniformly discharge powder to a certain extent, thereby improving the marking efficiency and quality, but it has obvious shortcomings when dealing with the complex conditions of subway construction foundation pits, especially when the surrounding complex buildings are involved in urban road sections. The subway foundation pit has a large excavation depth and complex and changeable geological conditions, and the physical and mechanical properties of different geological layers (such as soft soil, sand and gravel, rock layer and water-rich sand layer) are significantly different.

[0004] The existing hand-pushed lime powder line vehicle cannot effectively control the thickness of the foundation pit excavation line marking line, and it is difficult to adaptively adjust according to the actual concave-convex conditions of the foundation pit surface. SUMMARY

[0005] In order to improve the above technical problems, the application provides a marking mechanism for deep foundation pit construction.

[0006] The application provides a marking mechanism for deep foundation pit construction, which adopts the following technical scheme:

[0007] A marking mechanism for deep foundation pit construction comprises:

[0008] a rack;

[0009] a stock bin installed on the rack, wherein a discharge slot is formed in the bottom of the stock bin;

[0010] a discharge channel installed at the bottom of the stock bin and arranged in an inclined downward manner, wherein the upper end of the discharge channel is in communication with the discharge slot, and the lower end of the discharge channel has a discharging port;

[0011] an adjusting plate rotatably connected to the lower end of the discharge channel at one end, wherein the adjusting plate controls the size of the discharging port of the discharge channel by rotating itself;

[0012] a control assembly installed on the stock bin and used for controlling the rotating angle of the adjusting plate;

[0013] An opening and closing plate is installed in the discharging channel and used to close or open the discharging channel.

[0014] A linkage rod connects the adjusting plate and the opening and closing plate. When the adjusting plate rotates downward to increase the size of the discharging opening, the linkage rod drives the opening and closing plate to rotate away from an inner wall of the discharging channel, and the discharging channel is opened. The inner wall of the discharging channel is provided with a first accommodating slot for accommodating the opening and closing plate.

[0015] By using the above technical scheme, in the deep foundation pit construction process, in the face of different degrees of concave-convex fluctuation of the surface of the foundation pit, the marking mechanism can accurately control the size of the discharging opening of the discharging channel through the cooperation of the adjusting plate and the control assembly, and then control the discharging amount and the marking width of the marking material. The rack can be installed with a roller or slide on a track, and the bin moves along the position to be marked. The opening and closing plate and the linkage rod cooperate, when the adjusting plate rotates downward by a small angle, the size of the discharging opening is also small, and the discharging amount and the marking width are also small. The adjusting plate rotates downward, and the opening and closing plate rotates synchronously to open the discharging channel, realizing the linkage control of the opening of the discharging channel. When the adjusting plate rotates downward by a small angle, the distance between the opening and closing plate and the receiving plate is also small, which can ensure that the discharging capacity of the discharging channel is reduced in adaptability, so that the discharging amount of the marking material is accurately controlled. The linkage control of the adjusting plate and the opening and closing plate can ensure the coordination of the discharging and marking actions. The first accommodating slot accommodates the opening and closing plate when the opening and closing plate rotates upward to open the discharging channel.

[0016] When the concave-convex degree of the surface of the foundation pit is intensified, the control assembly controls the adjusting plate to rotate downward by a larger angle. When the lime as the marking material is discharged through the discharging opening, the width of the marking line is widened, the amplitude of the upward rotation of the opening and closing plate is also increased, and the amount of lime discharged from the discharging channel is increased, so that the thickness of the widened marking line is maintained, and the obvious degree of the marking line will not be reduced due to the widening of the marking line. The marking line is deepened and widened to ensure that the marking line is still clear and visible under complex terrain conditions, providing accurate guidance for subsequent construction.

[0017] In addition, the marking mechanism has a compact overall structure. The space of the deep foundation pit construction site is usually limited, and various construction equipment and obstacles exist. The compact structure design enables the marking mechanism to freely shuttle in a small space and easily reach the position to be marked, ensuring that the marking mechanism can stably and efficiently operate in the complex environment of the deep foundation pit, providing strong support for the smooth progress of the deep foundation pit construction.

[0018] Optionally, two discharging channels are symmetrically arranged, and a collecting channel is connected between the two discharging channels. The two adjusting plates are located in the collecting channel, and the spacing between the two adjusting plates forms the width of the marking line.

[0019] By adopting the technical scheme, the two discharge channels and the collecting channel are symmetrically arranged, the marking line can be discharged through the two discharge channels at the same time, the spacing between the two adjusting plates can be adjusted to flexibly adjust the width of the marking line, the marking mechanism can adapt to different construction environments, and the clarity and accuracy of the marking line are improved.

[0020] Optionally, the control assembly and the adjusting plate are correspondingly arranged, the control assembly comprises a first control rod, a second control rod and a control plate, the first control rod is installed on the hopper, the control plate is horizontally slid on the first control rod, the second control rod is threadedly installed on the control plate, the second control rod and the control plate are rotationally connected, and one end of the control plate abuts against the adjusting plate.

[0021] By adopting the technical scheme, the first control rod provides a sliding track for the control plate, the second control rod is threadedly connected with the control plate and can rotate relative to the control plate, the control plate can be horizontally slid on the first control rod by rotating the second control rod, the rotation angle of the adjusting plate is accurately controlled, the size of the discharge port and the width of the marking line are more accurately adjusted, the adjustment precision and stability are improved, and the quality of the marking operation is further improved; when the width of the marking line needs to be adjusted, the second control rod is only needed to be rotated, for example, when the marking line is widened, the two second control rods are rotated respectively, the two control plates are away from each other to increase the spacing between the two control plates, the adjusting plates are downwardly moved to abut against the control plates under the action of gravity, and then the spacing between the two adjusting plates is increased; when the marking line is narrowed, the spacing between the two control plates is reduced, the control plates push the adjusting plates to be close to each other, and then the spacing between the two adjusting plates is reduced, the control plates are moved to adjust the width of the marking line, and the operation convenience of the marking mechanism and the adjustment precision of the width of the marking line are improved.

[0022] Optionally, the adjusting plate is further driven to rotate repeatedly by a driving assembly, the driving assembly and the adjusting plate are correspondingly arranged, and the driving assembly comprises:

[0023] a driving rod installed on the control plate;

[0024] a driving source installed on the control plate and used for driving the driving rod to rotate;

[0025] a cam fixedly installed on the driving rod and intermittently driving the adjusting plate to rotate along with the rotation of the driving rod.

[0026] By adopting the technical scheme, after the control assembly determines the distance between the two adjusting plates, the driving assembly is arranged to enable the two adjusting plates to repeatedly rotate within a certain distance range, thereby driving the opening and closing plate to reciprocate, i.e., one, if the two cams drive the two adjusting plates to rotate synchronously, the intermittent opening and closing of the discharging channel can be realized, thereby realizing the intermittent discharging of the marking material and forming a discontinuous marking line, which may be more suitable for some special construction scenarios, such as being used to distinguish different construction stages or mark specific positions; two, if the two cams do not rotate synchronously, one adjusting plate rotates first and then the other adjusting plate rotates, thereby realizing continuous discharging and forming a continuous marking line; three, the reciprocating swing of the opening and closing plate can reciprocate the lime in the discharging channel, thereby reducing the occurrence of lime clumping and enabling the lime to be smoothly discharged from the distance between the opening and closing plate and the discharging channel.

[0027] Optionally, the reciprocating rotation of the adjusting plate drives the opening and closing plate to reciprocate, a second accommodating slot for inserting the opening and closing plate is arranged on the discharging pipeline, the first accommodating slot and the second accommodating slot are oppositely arranged, the first accommodating slot and the second accommodating slot are both slidably installed with a blocking block, and an elastic element is arranged to drive the blocking block to always block the slot.

[0028] By adopting the technical scheme, the second accommodating slot is arranged in cooperation with the first accommodating slot to provide a larger movement space for the opening and closing plate, thereby ensuring that the opening and closing plate can smoothly reciprocate; the blocking block and the elastic element are arranged, the blocking block blocks the slot of the first accommodating slot and the second accommodating slot under the action of the elastic element, thereby preventing the marking material from entering the accommodating slot and avoiding the accommodating slot from being blocked, and ensuring that the opening and closing plate can normally move; when the opening and closing plate is inserted into the first accommodating slot, the end of the opening and closing plate close to the second accommodating slot is spaced apart from the discharging channel, and the lime is discharged from the space; when the opening and closing plate is inserted into the second accommodating slot, the end of the opening and closing plate close to the first accommodating slot is spaced apart from the inner wall of the discharging channel, and the lime is discharged from the space, so that the opening and closing plate reciprocates while the discharging channel basically maintains normal discharging, the reciprocating opening and closing plate reciprocates and contacts the lime, thereby reducing the occurrence of lime clumping and improving the smoothness of lime discharging.

[0029] Optionally, a partition plate is connected to the side wall of the opening and closing plate close to the adjusting plate, when the opening and closing plate is inserted into the second accommodating slot, the lime in the discharging channel is discharged along the partition plate.

[0030] By adopting the technical scheme, when the opening and closing plate is inserted into the second accommodating slot, the partition plate can guide the lime in the discharging channel to be discharged, and the reciprocating movement of the partition plate has the effect of shaking the lime, thereby preventing the discharging channel from being blocked due to the accumulation of lime and ensuring the smoothness of discharging, and improving the continuity and stability of the marking operation.

[0031] Optionally, a stirring rod is installed on the side of the opening and closing plate away from the adjusting plate, and the stirring rod is located below the discharge slot.

[0032] By adopting the above technical scheme, the stirring rod is located below the discharge slot, and in the movement process of the opening and closing plate, the stirring rod can stir the marking material falling in the silo, prevent the marking material from being blocked at the discharge slot, ensure that the marking material can smoothly and uniformly enter the discharge passage, improve the stability of discharging and the uniformity of marking, and further improve the marking quality.

[0033] Optionally, a rotating plate is rotatably installed in the silo, and a push rod is connected to the blocking block in the first accommodation slot, and one end of the push rod extends into the silo and contacts the rotating plate.

[0034] By adopting the above technical scheme, when the opening and closing plate is inserted into the first accommodation slot to push the blocking block, one end of the push rod is also pushed, and the other end of the push rod pushes the rotating plate, so that the rotating plate can vibrate slightly, and the lime in the silo can also have a vibrating effect, reducing the occurrence of lime clumping in the silo.

[0035] In summary, the present application has at least one of the following beneficial effects:

[0036] 1. By cooperating the adjusting plate and the control assembly, the size of the discharge passage can be accurately controlled, and the discharge amount of the marking material and the width of the marking line can be flexibly adjusted.

[0037] 2. The stirring rod is located below the discharge slot, and in the movement process of the opening and closing plate, the marking material is stirred to prevent the marking material from being blocked at the discharge slot. The design of the partition plate further guides the lime in the discharge passage to be discharged and has a vibrating effect on the lime, preventing the discharge passage from being blocked due to the accumulation of lime, and improving the continuity and stability of the marking operation. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0039] Figure 2 is a cross-sectional view of the silo of the embodiment of the present application;

[0040] Figure 3 is a cross-sectional view of the embodiment of the present application, in which the adjusting plate is connected to the opening and closing plate, and the opening and closing plate blocks the discharge passage;

[0041] Figure 4 is a cross-sectional view of the embodiment of the present application, in which the opening and closing plate is inserted into the first accommodation slot;

[0042] Figure 5 is a cross-sectional view of the embodiment of the present application, in which one opening and closing plate is inserted into the second accommodation slot;

[0043] Figure 6 Figure 1 is a schematic diagram of a three-dimensional structure of a connecting partition of an opening and closing plate according to an embodiment of the present application.

[0044] The reference signs are explained as follows: 100, rack; 110, roller; 200, hopper; 210, discharge slot; 220, conveying pipe; 230, rotating plate; 231, through slot; 300, discharge passage; 310, discharge opening; 320, first accommodation slot; 330, second accommodation slot; 340, blocking block; 350, elastic member; 360, push rod; 400, collection passage; 410, baffle; 500, adjusting plate; 600, control assembly; 610, first control rod; 620, second control rod; 630, control plate; 700, opening and closing plate; 710, stirring rod; 720, partition; 800, connecting rod; 900, driving assembly; 910, driving rod; 920, cam. DETAILED DESCRIPTION

[0045] The following will be described in detail below with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 6 The present application will be further described in detail.

[0046] The embodiment of the present application discloses a marking mechanism for deep foundation pit construction. Referring to Figure 1 A marking mechanism for deep foundation pit construction includes a rack 100 as a bearing main body, a hopper 200 is fixedly installed on the rack 100, and the hopper 200 is used for storing powdery materials such as lime as marking materials.

[0047] There are various moving modes of the rack 100 at the construction site. Usually, the rack 100 is installed with rollers 110 at the bottom, which facilitates flexible movement at the construction site. For some deep foundation pits, the rack 100 can be hung on the track and moved along the track by installing a track and a support member for supporting the track on the site with a slope protection.

[0048] Referring to Figure 2 The hopper 200 is installed with a conveying pipe 220 at the top, which is used for feeding lime into the hopper 200. The hopper 200 is provided with a discharge slot 210 at the bottom, which is used as a passage for the marking materials (such as lime) to flow out of the hopper 200. The discharge slot 210 is symmetrically provided with two discharge passages 300, which are symmetrically provided at the bottom of the hopper 200. The discharge passages 300 are installed in an inclined downward manner, the upper end of which is communicated with the discharge slot 210 at the bottom of the hopper 200, and the lower end has a discharge opening 310. The two discharge passages 300 are each rotatably installed with an adjusting plate 500 at the discharge opening 310. The two discharge passages 300 are connected through a collection passage 400, and the two adjusting plates 500 are located in the collection passage 400. The spacing between the two adjusting plates 500 forms the widest width of the marking line.

[0049] Referring toFigure 1 and Figure 2 The aggregation channel 400 includes two baffles 410 that are vertically arranged and parallel to each other. The adjustment plate 500 is located between the two baffles 410, and the end of the adjustment plate 500 fits with the baffle 410. In actual application, the two baffles 410 are made of transparent plastic material, which makes it easier to visually see the two adjustment plates 500 and the distance between the two adjustment plates 500. When the adjustment plates 500 and the baffles 410 fit together and have a certain friction, the adjustment plates 500 can control the size of the discharge channel 300 discharge port 310 by rotating themselves. When it is necessary to adjust the width of the marking line according to the unevenness of the foundation pit surface, it is achieved by adjusting the rotation angle of the adjustment plate 500. For example, under complex terrain, if the unevenness of the foundation pit surface is aggravated, the marking line needs to be deepened and widened. At this time, the distance between the adjustment plates 500 can be increased to increase the width of the marking line.

[0050] Reference Figure 1 and Figure 2 To precisely control the rotation angle of the adjustment plate 500, a control assembly 600 is mounted on the silo 200, corresponding to the adjustment plate 500. The control assembly 600 comprises a first control rod 610, a second control rod 620, and a control plate 630. The first control rod 610 is fixedly mounted on the bottom of the silo 200. It is L-shaped and made of transparent plastic. A horizontal section of the first control rod 610 provides a sliding track for the control plate 630, which slides horizontally on the first control rod 610. The second control rod 620 is threadedly mounted on a vertical section of the control plate 630, allowing relative rotation between the second and second control rods 620 and 630. Rotating the second control rod 620 causes the control plate 630 to move horizontally along the first control rod 610. The horizontal section of the first control rod 610 is engraved with a scale (not shown) that serves as a reference for the distance the control plate 630 can move. The end of the control plate 630 away from the second control rod 620 abuts against the adjustment plate 500. When the width of the marking line needs to be adjusted, the second control rod 620 is rotated to push the control plate 630 to slide horizontally on the first control rod 610, thereby accurately controlling the rotation angle of the adjustment plate 500.

[0051] After the control assembly 600 is added, the friction between the adjusting plate 500 and the baffle 410 can be appropriately reduced, and the weight of the adjusting plate 500 itself is increased, so that the adjusting plate 500 can be driven to rotate downward by gravity. For example, when the mark line is widened, the two second control rods 620 are respectively rotated to make the two control plates 630 move away from each other, increase the distance between the two control plates 630, and drive the adjusting plate 500 to move downward to abut on the control plate 630, thereby increasing the distance between the two adjusting plates 500; when the mark line is narrowed, the distance between the two control plates 630 is reduced, the control plate 630 pushes the adjusting plate 500 to move close to each other, thereby reducing the distance between the two adjusting plates 500.

[0052] The adjusting plate 500 abuts on the control plate 630, and when the two control plates 630 are stationary, the distance between the two control plates 630 determines the maximum distance between the adjusting plates 500. The adjusting plate 500 can receive external force and move close to or away from each other within a certain distance, so that the bottom wall of the bin 200 is provided with a driving assembly 900 for driving the adjusting plate 500 to repeatedly rotate within the distance between the two control plates 630, and the driving assembly 900 and the adjusting plate 500 are correspondingly arranged.

[0053] Referring to Figure 2 , the driving assembly 900 includes a driving rod 910, a driving source and a cam 920. The driving rod 910 and the driving source (not shown in the figure) are both mounted on the control plate 630. The driving source is a servo motor, the output shaft of the servo motor is fixedly connected with the driving rod 910, and is used to drive the driving rod 910 to rotate. The control plate 630 can be provided with a storage battery for supplying power to the servo motor. The cam 920 is fixedly installed on the driving rod 910 and rotates with the driving rod 910. When the cam 920 rotates, the protruding part drives the adjusting plate 500 to move away from the control plate 630, and then intermittently drives the adjusting plate 500 to reciprocate at a small amplitude, so as to reduce the accumulation of lime clinker at the discharge port 310.

[0054] Further, referring to Figure 3A shutter 700 is installed in the discharge channel 300, and the shutter 700, the discharge chute 210 and the discharge opening 310 are spaced apart, and the shutter 700 is used to block or open the discharge channel 300. The adjusting plates 500 and the shutter 700 are connected through a linkage rod 800, and the bottom wall of the discharge channel 300 is provided with a rotating groove for the linkage rod 800 to penetrate and rotate, one end of the linkage rod 800 is fixedly connected with the adjusting plate 500, and the other end of the linkage rod 800 is fixedly connected with the shutter 700, so that the shutter 700 rotates with the rotation of the adjusting plate 500, and the shutter 700 is an arc-shaped plate structure. When the shutter blocks the discharge channel 300, the end of the control plate 630 away from one end of the second control rod 620 is located on the 0 scale line on the first control rod 610, the two adjusting plates 500 abut on the control plate 630 and the lower ends of the two adjusting plates 500 are spaced apart, and the protruding part of the cam 920 is away from the surface of the adjusting plate 500. If the protruding part of the cam 920 drives the adjusting plate 500 to rotate, the two adjusting plates 500 do not interfere with each other.

[0055] Referring to Figure 4 Before marking, the distance between the two adjusting plates 500 is adjusted, and the two control plates 630 are driven away from each other, and the control plate 630 is moved according to the scale to determine the distance, which is convenient for controlling the distance between the two control plates 630. When the adjusting plate 500 is rotated downward by its own gravity, the linkage rod 800 drives the shutter 700 to rotate upward, so that one end of the shutter 700 and the inner wall of the discharge channel 300 are spaced apart to allow the lime to flow out, and the discharge channel 300 is opened.

[0056] After the distance between the two adjusting plates 500 is determined by the control assembly 600, the driving assembly 900 drives the control plate 630 to approach the adjusting plate 500, and the driving assembly 900 enables the two adjusting plates 500 to repeatedly rotate within a certain distance range, thereby driving the shutter 700 to reciprocate. The inner wall of the discharge channel 300 close to the bin 200 is provided with a first accommodation groove 320 for accommodating the shutter 700 to rotate into, and the inner wall of the other side of the discharge channel 300 is provided with a second accommodation groove 330 for accommodating the shutter 700 to insert, and the first accommodation groove 320 and the second accommodation groove 330 are opposite to each other.

[0057] Referring to Figure 4 and Figure 5When the convex part of the cam 920 is away from the adjusting plate 500, the adjusting plate 500 rotates downward and contacts the control plate 630, and when the opening and closing plate 700 rotates upward along with the rotation of the adjusting plate 500, the opening and closing plate 700 is inserted into the first displacement slot 320, and vice versa, the opening and closing plate 700 is inserted into the second displacement slot 330. The first displacement slot 320 and the second displacement slot 330 are both slidably installed with a blocking block 340, and are installed with an elastic member 350 for driving the blocking block 340 to always have a blocking slot, so as to prevent the marking material from entering the first displacement slot 320 and the second displacement slot 330, avoid the first displacement slot 320 and the second displacement slot 330 being blocked, and ensure that the opening and closing plate 700 can move normally. The blocking block 340 is always not extended out of the first displacement slot 320 or the second displacement slot 330, but the elastic force of the elastic member 350 is much smaller than the pushing force of the opening and closing plate 700 pushing the blocking block 340, and the setting of the elastic member 350 does not affect the opening and closing plate 700 entering the first displacement slot 320 or the second displacement slot 330 along with the rotation of the adjusting plate 500.

[0058] With reference to Figure 5 When the opening and closing plate 700 is inserted into the first displacement slot 320, the end of the opening and closing plate 700 close to the second displacement slot 330 is spaced apart from the discharge channel 300, and the lime is discharged from the spacing; when the opening and closing plate 700 is inserted into the second displacement slot 330, the end of the opening and closing plate 700 close to the first displacement slot 320 is spaced apart from the inner wall of the discharge channel 300, and the lime is discharged from the spacing again, so that when the opening and closing plate 700 reciprocates, the discharge channel 300 basically maintains normal discharging.

[0059] When the control plate 630 is located at the 0 scale, if the two cams 920 drive the two adjusting plates 500 to rotate synchronously, the intermittent opening and closing of the discharge channel 300 can be realized, and the discontinuous marking line is formed, which is suitable for some special construction scenes; if the two cams 920 are not synchronous, one adjusting plate 500 rotates first, and then the other adjusting plate 500 rotates, and continuous discharging can be realized, and the continuous marking line is formed. In addition, the opening and closing plate 700 reciprocates, and can reciprocate contact the lime in the discharge channel 300, so as to reduce the occurrence of lime caking, and ensure that the lime can be smoothly discharged from the spacing between the opening and closing plate 700 and the discharge channel 300.

[0060] The stirring rod 710 is installed at the middle position of the side of the opening and closing plate 700 away from the adjusting plate 500, and the stirring rod 710 is located below the discharge chute 210. In the movement process of the opening and closing plate 700, the stirring rod 710 can stir the marking material falling in the hopper 200, prevent the marking material from being blocked at the discharge chute 210, ensure that the marking material can smoothly and uniformly enter the discharge channel 300, and improve the stability of discharging and the uniformity of marking.

[0061] With reference to Figure 5 andFigure 6 The side of the opening and closing plate 700 away from the stirring rod 710 is connected with a partition plate 720, and an adjusting plate 500 is connected with two connecting rods 800, and the partition plate 720 is installed between the two connecting rods 800. When the opening and closing plate 700 is inserted into the second accommodation slot 330, the lime in the discharging channel 300 is discharged along the partition plate 720, and the reciprocating movement of the partition plate 720 has the effect of shaking the lime, preventing the discharging channel 300 from being blocked due to the accumulation of lime, ensuring the smoothness of discharging, and improving the continuity and stability of the marking operation.

[0062] Further, referring to Figure 4 and Figure 5 A rotating plate 230 is rotatably installed in the silo 200, the rotating plate 230 is provided with a through slot 231 for communication with the discharging groove 210, and the through slot 231 is larger than the discharging groove 210, so that the rotation of the rotating plate 230 does not affect the discharge of the lime from the discharging groove 210, and one end of the rotating plate 230 is rotatably connected with the vertical side wall of the silo 200. The blocking block 340 in the first accommodation slot 320 is connected with a push rod 360, one end of the push rod 360 extends into the silo 200 and is in contact with the rotating plate 230. When the opening and closing plate 700 is inserted into the first accommodation slot 320 to push the blocking block 340, one end of the push rod 360 is also pushed, and the other end of the push rod 360 pushes the rotating plate 230 to make the rotating plate 230 vibrate slightly, thereby causing the lime in the silo 200 to vibrate, reducing the occurrence of lime clumping in the silo 200.

[0063] It should be noted that if the silo 200 is installed on the frame 100 provided with the roller 110, the silo 200 generally moves linearly along the horizontal plane. If the silo 200 is installed on the frame 100 and moves by being guided by the track, the silo 200 can adapt to the protective slope gradually increasing in the foundation pit and can mark on the protective slope. In addition, the opening and closing plate 700 can also be driven to block one of the discharging channels 300 according to the needs of the site, and only one discharging channel 300 is left for discharging, and the control assembly 600 can drive the rotating angle of the adjusting plate 500 to increase the line width selection.

[0064] The implementation principle of the marking mechanism for deep foundation pit construction in the embodiment of the application is as follows:

[0065] The rack 100 is used as a bearing main body, and flexible movement is realized by means of the rollers 110; the bin 200 stores marking materials and discharges the materials through the bottom discharge slot 210; the downwardly inclined discharge channels 300 guide the marking materials to the marking area; by rotating the second control rod 620 on the control plate 630 abutting against the adjusting plate 500, the control plate 630 is pushed to slide horizontally, the rotating angle of the adjusting plate 500 is accurately controlled, the size of the discharge opening 310 of the discharge channel 300 is adjusted, the two discharge channels 300 are connected through the collecting channel 400, the distance between the two adjusting plates 500 forms the width of the marking line, and the foundation pit surface with different degrees of concave can be flexibly adjusted to adapt to different degrees of concave; the driving source of the driving assembly 900 drives the driving rod 910 to rotate, intermittently drives the adjusting plate 500 to rotate repeatedly, drives the opening and closing plate 700 to swing back and forth through the connecting rod 800, realizes intermittent or continuous discharge of the discharge channel 300, forms marking lines with different patterns, reduces the caking of the marking materials, and guarantees smooth discharge; in the process of reciprocating swing of the opening and closing plate 700, the stirring rod 710 on the opening and closing plate 700 stirs the marking materials below the discharge slot 210 to prevent blockage, the partition plate 720 guides the discharge and shakes to prevent blockage, the push rod 360 connected with the blocking block 340 in the first displacement slot 320 pushes the rotating plate 230 to vibrate the bin 200 to prevent blockage, the marking mechanism for deep foundation pit construction realizes the cooperation of various components, accurately adapts to the complex geological and topographical conditions of the deep foundation pit (the subway foundation pit), effectively solves the problems of low efficiency, inaccurate marking and easy blockage of the traditional marking method in the complex environment, provides reliable marking guarantee for the deep foundation pit construction, and effectively promotes the smooth progress of the underground engineering construction such as the subway.

[0066] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A marking mechanism for deep foundation pit construction, characterized in that: include: rack(100); A silo (200) is mounted on the frame (100), and a discharge chute (210) is provided at the bottom of the silo (200); A discharge channel (300) is installed at the bottom of the silo (200) and is arranged to be inclined downward, the upper end of the discharge channel (300) is communicated with the discharge trough (210), and the lower end of the discharge channel (300) has a discharge port (310); An adjusting plate (500) having one end rotatably connected to the lower end of the discharge channel (300), wherein the adjusting plate (500) controls the size of the discharge opening (310) of the discharge channel (300) by rotating itself; A control component (600) is installed on the silo (200) and is used to control the rotation angle of the adjustment plate (500); An opening and closing plate (700) is installed in the discharge channel (300) and is used to block or open the discharge channel (300); The connecting rod (800) connects the adjustment plate (500) and the opening and closing plate (700). When the adjustment plate (500) rotates downward to enlarge the drop opening (310), the connecting rod (800) drives the opening and closing plate (700) to rotate away from an inner wall of the discharge channel (300). The discharge channel (300) is opened, and the inner wall of the discharge channel (300) is provided with a first clearance groove (320) for accommodating the opening and closing plate (700) to rotate in.

2. A marking mechanism for deep foundation pit construction according to claim 1, characterized in that: Two discharge channels (300) are symmetrically provided, a collection channel (400) is connected between the two discharge channels (300), two adjustment plates (500) are located in the collection channel (400), and the distance between the two adjustment plates (500) forms the width of the marking line.

3. A marking mechanism for deep foundation pit construction according to claim 2, characterized in that: The control assembly (600) and the adjustment plate (500) are arranged correspondingly, and the control assembly (600) includes a first control rod (610), a second control rod (620) and a control plate (630), wherein the first control rod (610) is installed on the silo (200), the control plate (630) slides horizontally on the first control rod (610), the second control rod (620) is threadedly installed on the control plate (630), the second control rod (620) and the control plate (630) are rotatably connected, and one end of the control plate (630) abuts against the adjustment plate (500).

4. A marking mechanism for deep foundation pit construction according to claim 3, characterized in that: It also includes a driving assembly (900) for driving the adjustment plate (500) to rotate repeatedly, the driving assembly (900) and the adjustment plate (500) being arranged correspondingly, and the driving assembly (900) including: A driving rod (910) is mounted on the control panel (630); a driving source, mounted on the control panel (630) and used to drive the driving rod (910) to rotate; The cam (920) is fixedly mounted on the driving rod (910) and intermittently drives the adjusting plate (500) to rotate as the driving rod (910) rotates.

5. A marking mechanism for deep foundation pit construction according to claim 4, characterized in that: The reciprocating rotation of the regulating plate (500) drives the opening and closing plate (700) to swing back and forth, and a second clearance groove (330) for inserting the opening and closing plate (700) is provided on the discharge channel (300), the first clearance groove (320) and the second clearance groove (330) face each other, and the first clearance groove (320) and the second clearance groove (330) are both slidably mounted with a blocking block (340), as well as an elastic member (350) that drives the blocking block (340) to always have a blocking notch.

6. A marking mechanism for deep foundation pit construction according to claim 5, characterized in that: A partition plate (720) is connected to a side wall of the opening and closing plate (700) facing the regulating plate (500), and when the opening and closing plate (700) is inserted into the second clearance groove (330), the white ash in the discharge channel (300) is discharged along the partition plate (720).

7. A marking mechanism for deep foundation pit construction according to claim 5, characterized in that: A stirring rod (710) is installed on the side of the opening and closing plate (700) facing away from the regulating plate (500), and the stirring rod (710) is located below the discharge chute (210).

8. A marking mechanism for deep foundation pit construction according to claim 5, characterized in that: A rotating plate (230) is rotatably installed in the silo (200), and a blocking block (340) in the first relief groove (320) is connected to a push rod (360), one end of which extends into the silo (200) and contacts the rotating plate (230).

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