Device capable of adjusting and controlling thickness of sprayed concrete surface layer of foundation pit support

Abstract

The utility model relates to the field of foundation pit supporting, and discloses a device capable of adjusting and controlling the thickness of a foundation pit supporting sprayed concrete surface layer, which comprises a shell, a moving component is arranged in the shell, a fixing component is arranged at the top of the shell, and a scale plate is arranged in the middle of the fixing component. A marking assembly is arranged on the front portion of the scale plate, fixing plates are fixedly connected to the front and rear portions of the left and right sides of the outer wall of the shell, pointed cones are fixedly connected to the bottom faces of the fixing plates, sliding grooves are formed in the left and right sides of the inner wall of the shell, and the moving assembly comprises a screw rod which penetrates through the shell and is rotationally connected with the shell; and the top of the screw rod is fixedly connected with a rotating plate. According to the device, the marking assembly is matched with the scale plate and the fixing assembly, so that the device can be adjusted according to the required thickness of a concrete layer, meanwhile, the device can adjust the angle of the laser line marker according to the slope angle of a foundation pit, and the device is more practical.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support, and in particular to a device for adjusting and controlling the thickness of the shotcrete surface layer for foundation pit support. Background Technology

[0002] Foundation pit support refers to the engineering measures taken during the excavation of a foundation pit to support and reinforce the surrounding soil in order to prevent soil collapse and ensure construction safety. Common foundation pit support methods include steel supports, deep foundation pit retaining walls, soil nailing walls, and cantilever walls. When designing foundation pit support, it is necessary to consider factors such as the mechanical properties of the soil, the depth of the foundation pit, and the surrounding environmental conditions to ensure the stability and safety of the support structure. Foundation pit support engineering plays an important role in urban construction and underground engineering.

[0003] A search revealed Chinese Patent Publication No. CN216977804U, which discloses a device for adjusting and controlling the thickness of shotcrete surface layer in foundation pit support. The device includes a limiting sleeve, a support block located at the center of one side of the limiting sleeve, a limiting groove on the support block, an L-shaped measuring arm inside the limiting groove, an infrared / visible light emitter at one end of the L-shaped measuring arm, a battery compartment at the center of the top of the limiting sleeve, several movable rollers at the top of the inside of the limiting sleeve, a fixed plate on one side of the inside of the limiting sleeve, and a movable plate matching the fixed plate on the other side of the inside of the limiting sleeve. The movable plate and the limiting sleeve are connected by an adjusting screw. Beneficial effects: It can avoid the problem of uneven concrete surface layer thickness caused by uneven foundation pit slope treatment, realize the thickness detection of the concrete surface, and the device is easy to adjust and use.

[0004] Although the aforementioned device, composed of components such as a limiting sleeve, support block, limiting slide, L-shaped measuring arm, movable clamping plate, fixed clamping plate, and infrared / visible light emitting head, enables the monitoring of concrete surface thickness, the existing device has limitations. The angles of some foundation pit slopes may vary, while the connections between the limiting sleeve, support block, and L-shaped measuring arm are relatively fixed. This prevents the device from effectively adjusting to the slope angle of the foundation pit, hindering the monitoring of shotcrete thickness and causing inconvenience. Therefore, a device for adjusting and controlling the thickness of shotcrete surface layer in foundation pit support is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a device for adjusting and controlling the thickness of the shotcrete surface layer for foundation pit support. It aims to improve the problem that the connection between the limiting sleeve, support block, and L-shaped measuring arm in the existing technology is relatively fixed, which makes it difficult for the device to adapt well to the slope angle of the foundation pit and make adjustments, resulting in considerable inconvenience.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support, comprising a housing, a movable component disposed inside the housing, a fixed component disposed on the top of the housing, a scale plate disposed in the middle of the fixed component, a marking component disposed in front of the scale plate, and fixed plates fixedly connected to the left and right sides and the front and rear of the outer wall of the housing.

[0007] As a further description of the above technical solution:

[0008] A pointed cone is fixedly connected to the bottom surface of the fixing plate, and sliding grooves are provided on both the left and right sides of the inner wall of the outer shell.

[0009] As a further description of the above technical solution:

[0010] The moving component includes a screw that passes through and is rotatably connected to the outer shell. A rotating plate is fixedly connected to the top of the screw, and a base plate is threadedly connected to the lower part of the screw. Multiple casters are fixedly connected to the bottom surface of the base plate, and sliders are fixedly connected to the left and right sides of the outer wall of the base plate. The sliders are slidably connected to the sliding grooves.

[0011] As a further description of the above technical solution:

[0012] The fixing component includes two upright plates. The bottom surfaces of the two upright plates are fixedly connected to the outer shell. A connecting frame is fixedly connected to the upper part of the two upright plates on their adjacent sides. The scale plate is movably connected to the connecting frame. A stud is threaded through the middle of the connecting frame. A rotating block is fixedly connected to the top of the stud, and a fixing pad is fixedly connected to the bottom of the stud.

[0013] As a further description of the above technical solution:

[0014] The marking assembly includes a connecting block, a laser marker is fixedly connected to the bottom of the connecting block, and rotating shafts are fixedly connected to the left and right sides of the outer wall of the connecting block. The rotating shafts pass through the front of the scale plate and are rotatably connected to it.

[0015] As a further description of the above technical solution:

[0016] The marking assembly also includes a housing, which is fixedly connected to the right side of the scale plate. The rotating shaft located on the right side passes through the housing and is rotatably connected thereto. A limiting member is provided inside the housing, and an adjusting member is provided on the right side of the limiting member.

[0017] As a further description of the above technical solution:

[0018] The limiting component includes a connecting ring, which is fixedly connected to the housing. Multiple connecting plates are fixedly connected to the right side of the connecting ring, and a locking flap is fixedly connected to the right side of the connecting plate.

[0019] As a further description of the above technical solution:

[0020] The adjusting component includes a cover plate, and a fixing ring is fixedly connected to the left side of the cover plate. The fixing ring is threadedly connected to the housing, and an annular groove adapted to the multiple locking flaps is opened on the left side of the fixing ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting the cooperation between the marking component, the scale plate and the fixing component, the device can be adjusted according to the required concrete layer thickness, and at the same time, the angle of the laser marker can be adjusted according to the slope angle of the foundation pit, making it more practical.

[0023] 2. In this utility model, by setting up the cooperation between the outer shell, the fixed plate, the pointed cone and the moving components, the movement and fixation of the device during use are made more convenient and faster. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support proposed in this utility model.

[0025] Figure 2 This is a three-dimensional structural diagram of a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support, as proposed in this utility model.

[0026] Figure 3 This is a three-dimensional structural diagram of the lower side of the shell of a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support, as proposed in this utility model.

[0027] Figure 4 A three-dimensional structural diagram of the marking component of a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support proposed in this utility model.

[0028] Figure 5This is an enlarged three-dimensional structural diagram of point A of the device for adjusting and controlling the thickness of the shotcrete surface layer for foundation pit support proposed in this utility model.

[0029] Legend:

[0030] 1. Outer shell; 2. Moving component; 3. Fixed component; 4. Scale plate; 5. Marking component; 11. Fixed plate; 12. Cone; 13. Slide groove; 21. Screw; 22. Rotating plate; 23. Base plate; 24. Caster wheel; 25. Slider; 31. Vertical plate; 32. Connecting frame; 33. Stud; 34. Rotating block; 35. Fixing pad; 51. Connecting block; 52. Rotating shaft; 53. Housing; 54. Limiting component; 55. Adjusting component; 56. Laser marker; 541. Connecting ring; 542. Connecting plate; 543. Clip; 551. Cover plate; 552. Fixing ring; 553. Ring groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 The present invention provides an embodiment of a device for adjusting and controlling the thickness of shotcrete surface layer for foundation pit support, comprising a housing 1 for connecting various components, a movable component 2 inside the housing 1 for coordinating the movement of the device, a fixed component 3 on the top of the housing 1 for assisting in the adjustment and fixing of a scale plate 4, a scale plate 4 in the middle of the fixed component 3 for adjusting according to the required concrete layer thickness, and a marking component 5 at the front of the scale plate 4 for adjusting according to the required concrete layer thickness.

[0033] Please see Figure 3 The outer wall of the outer casing 1 is fixedly connected to the left and right sides and the front and rear parts of the casing 1, which is used to cooperate with the installation of the pointed cone 12. The bottom surface of the fixed plate 11 is fixedly connected to the pointed cone 12 for fixing the position of the auxiliary device. The inner wall of the outer casing 1 is provided with the left and right sides of the sliding groove 13 for cooperating with the connection of the moving component 2.

[0034] like Figure 2As shown, the movable component 2 includes a screw 21 for adjusting the base plate 23. The screw 21 passes through the outer shell 1 and is rotatably connected to it. A rotating plate 22 is fixedly connected to the top of the screw 21 for cooperating with the adjusting screw 21. The lower part of the screw 21 is threadedly connected to the base plate 23 for connecting casters 24. Multiple casters 24 are fixedly connected to the bottom surface of the base plate 23 for cooperating with the position movement of the device. Slider blocks 25 are fixedly connected to the left and right sides of the outer wall of the base plate 23 for cooperating with limiting the position of the base plate 23. The sliders 25 are slidably connected to the slide groove 13.

[0035] Furthermore, the fixing component 3 includes two upright plates 31 for connecting various components. The bottom surfaces of the two upright plates 31 are fixedly connected to the outer casing 1. A connecting frame 32 is fixedly connected to the upper part of the side of the two upright plates 31 that are close to each other, for cooperating with the installation of the scale plate 4. The scale plate 4 is movably connected to it. A stud 33 is threaded through the middle of the connecting frame 32. A rotating block 34 is fixedly connected to the top of the stud 33 for cooperating with the adjustment of the stud 33. A fixing pad 35 is fixedly connected to the bottom of the stud 33 for fixing the scale plate 4.

[0036] Please see Figure 4 - Figure 5 The marking component 5 includes a connecting block 51 for connecting a laser line marker 56. The laser line marker 56 is fixedly connected to the bottom of the connecting block 51 for marking and indicating. Rotating shafts 52 are fixedly connected to the left and right sides of the outer wall of the connecting block 51 for connecting to the scale plate 4. The rotating shafts 52 pass through the front of the scale plate 4 and are rotatably connected to it. The marking component 5 also includes a housing 53 for facilitating the connection between the various components. The housing 53 is fixedly connected to the right side of the scale plate 4. The rotating shaft 52 located on the right side passes through the housing 53 and is rotatably connected to it for aligning with the angle of the connecting block 51. A limiting member 54 is provided inside the housing 53 for limiting the rotating shaft 52 on the right side. An adjusting member 55 is provided on the right side of the limiting member 54 for adjusting the limiting member 54.

[0037] Furthermore, the limiting member 54 includes a connecting ring 541 through which the rotating shaft 52 on the right side passes. The connecting ring 541 is fixedly connected to the housing 53. Multiple connecting plates 542 are fixedly connected to the right side of the connecting ring 541 for connecting and adjusting multiple locking flaps 543. The locking flaps 543 are fixedly connected to the right side of the connecting plate 542, which can limit and fix the rotating shaft 52. The adjusting member 55 includes a cover plate 551 for connecting various components. A fixing ring 552 is fixedly connected to the left side of the cover plate 551 for connecting to the housing 53. The fixing ring 552 is threadedly connected to the housing 53. The left side of the fixing ring 552 has an annular groove 553 that matches the multiple locking flaps 543 for controlling the opening, closing and tightening of the multiple locking flaps 543.

[0038] Working principle: In use, first move the device to the location in the foundation pit where the concrete layer needs to be sprayed. Then rotate the rotating plate 22, causing it to rotate the screw 21, which in turn moves the connected base plate 23. Under the limit of the slider 25, the base plate 23 will move smoothly upwards, thereby moving the caster wheel 24 upwards, so that the fixing plate 11 contacts the ground, and the pointed cone 12 penetrates the ground, fixing the device in position. Then, according to the required thickness of the concrete layer to be sprayed, rotate the rotating block 34, causing it to rotate the stud 33, which in turn moves the fixing pad 35 upwards, causing the scale plate 4 to lose its limit. Then, according to the required thickness, pull the scale plate 4. After adjusting to the appropriate thickness mark, rotate the rotating block 34 in the opposite direction, causing it to rotate the stud 33 in reverse, so that the fixing pad 35 presses the scale plate 4 against it again, fixing it in place. Then rotate the cover. Plate 551 is used to rotate the fixing ring 552 and separate it from the housing 53. When the fixing ring 552 separates, the ring groove 553 will separate from the clip 543, and the clip 543 will lose its limit and unfold outward, thereby loosening the rotating shaft 52 that it has fixed. Then, the connecting block 51 is turned by hand to drive the laser marking device 56 to adjust the angle. The rotating shaft 52 will also rotate accordingly. After the angle is adjusted, the fixing ring 552 is screwed back into the housing 53, so that the ring groove 553 is once again fitted over the outside of the multiple clips 543 and limits them, so that the multiple clips 543 move closer to each other and tighten, limiting and fixing the rotating shaft 52 on the right side. This fixes the angle of the laser marking device 56. Then, the laser marking device 56 is turned on to mark the required thickness of the concrete layer to be sprayed. The workers can then carry out construction according to the marking.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for adjustable control of the thickness of a shotcrete facing in a foundation pit support, comprising a housing (1), characterised in that: The inside of the shell (1) is provided with a moving assembly (2), the top of the shell (1) is provided with a fixed assembly (3), the middle of the fixed assembly (3) is provided with a scale board (4), the front of the scale board (4) is provided with a marking assembly (5), and the left and right sides of the outer wall of the shell (1) are fixedly connected with fixed plates (11).

2. A device for adjustable control of the thickness of the shotcrete face layer of a foundation pit support according to claim 1, characterized in that: The bottom surface of the fixed plate (11) is fixedly connected with a sharp cone (12), and the left and right sides of the inner wall of the shell (1) are both provided with a sliding groove (13).

3. A device for adjustable control of the thickness of a shotcrete face layer of a foundation pit support according to claim 2, characterized in that: The moving assembly (2) comprises a screw rod (21), the screw rod (21) penetrates the shell (1) and is rotationally connected with the shell (1), the top of the screw rod (21) is fixedly connected with a rotating plate (22), the lower part of the screw rod (21) is threadedly connected with a bottom plate (23), the bottom surface of the bottom plate (23) is fixedly connected with a plurality of universal wheels (24), and the left and right sides of the outer wall of the bottom plate (23) are both fixedly connected with sliding blocks (25); the sliding blocks (25) are slidably connected with the sliding grooves (13).

4. The device for adjustable control of the thickness of the shotcrete face layer of a foundation pit support according to claim 1, characterized in that: The fixed assembly (3) comprises two vertical plates (31), the bottom surfaces of the two vertical plates (31) are fixedly connected with the shell (1), the side, which is close to each other, of the two vertical plates (31) is fixedly connected with a connecting frame (32) in common, the scale board (4) is movably connected with the connecting frame (32), the middle of the connecting frame (32) penetrates and is threadedly connected with a stud (33), the top of the stud (33) is fixedly connected with a rotating block (34), and the bottom of the stud (33) is fixedly connected with a fixed pad (35).

5. The device for adjustable control of the thickness of the shotcrete face layer of a foundation pit support according to claim 1, characterized in that: The marking assembly (5) comprises a connecting block (51), the bottom of the connecting block (51) is fixedly connected with a laser line marker (56), the left and right sides of the outer wall of the connecting block (51) are both fixedly connected with rotating shafts (52), and the rotating shafts (52) penetrate the front of the scale board (4) and are rotationally connected with the scale board (4).

6. A device for adjustable control of the thickness of a shotcrete face layer of a foundation pit support according to claim 5, characterized in that: The marking assembly (5) further comprises a shell (53), the shell (53) is fixedly connected with the right side of the scale board (4), the rotating shaft (52) on the right side penetrates the shell (53) and is rotationally connected with the shell (53), the inside of the shell (53) is provided with a limiting piece (54), and the right side of the limiting piece (54) is provided with an adjusting piece (55).

7. A device for adjustable control of the thickness of a shotcrete face layer of a foundation pit support according to claim 6, characterized in that: The limiting piece (54) comprises a connecting ring (541), the connecting ring (541) is fixedly connected with the shell (53), the right side of the connecting ring (541) is fixedly connected with a plurality of connecting plates (542), and the right side of the connecting plate (542) is fixedly connected with a clamping petal (543).

8. A device for adjustable control of the thickness of a shotcrete face layer of a foundation pit support according to claim 7, characterized in that: The adjusting piece (55) comprises a cover plate (551), the left side of the cover plate (551) is fixedly connected with a fixed ring (552), the fixed ring (552) is threadedly connected with the shell (53), and the left side of the fixed ring (552) is provided with a ring groove (553) matched with the plurality of clamping petals (543).

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