Sand layer landslide preventing device for segmented excavation of sand layer foundation pit

Abstract

The utility model belongs to the technical field of sand layer landslide prevention devices, and particularly relates to a sand layer landslide prevention device for segmented excavation of a sand layer foundation pit. The rotating frame is fixedly mounted at the top of the base; the protective plate is rotationally connected to the inner side of the rotating frame; the number of the positioning mechanisms is two, the positioning mechanisms are matched with the protection plate and the control mechanism respectively, the positioning mechanisms are used for fixing the position of the protection plate, and the control mechanism is used for unlocking the position of the protection plate; the base is fixed in the edge ground of a foundation pit through nails, then the position of the sliding frame is unlocked at the top of the base, the position of the protection plate can be unlocked through the sliding frame, the position of the protection plate can be freely adjusted, and an angle can be formed between the protection plate and the slope surface of the foundation pit. And after landslide occurs in the foundation pit, the landslide can be blocked by the protective plates to protect workers in the foundation pit.

Description

Technical Field

[0001] The utility model relates to the technical field of devices for preventing sand layer landslides, in particular to a device for preventing sand layer landslides during segmented excavation of a sand layer foundation pit. Background Art

[0002] The foundation pit is a pit dug at the design location of the foundation according to the base elevation and the plane size of the foundation. Before excavation, an excavation plan should be formulated based on geological and hydrological data and the situation of nearby buildings on site, and waterproofing and drainage work should be done. If the excavation is not deep, the slope can be stabilized by the method of lowering the slope, and the slope size is determined according to relevant construction regulations. For deep excavations and nearby buildings, the foundation pit wall support method and the shotcrete wall protection method can be used. Large foundation pits can even use underground continuous walls and column-type bored pile interlocking methods to prevent the outer soil layer from collapsing; if there is no impact on nearby buildings, the well point method can be used to lower the groundwater level and use slope lowering and open excavation; in cold areas, natural cold air freezing method can be used for excavation, etc.

[0003] When excavating a foundation pit in a sand layer, workers need to enter the inner side of the foundation pit. Since the sand and gravel in the sand layer are fluid, if the workers are not careful about the landslide of the sand layer, it is easy to cause danger to the workers. Therefore, the utility model proposes a device for preventing sand layer landslide during segmented excavation of a sand layer foundation pit, which is used to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that when excavating a foundation pit in a sand layer, workers need to enter the inner side of the foundation pit. Since the sand and gravel in the sand layer are fluid, if the workers do not pay attention to the landslide of the sand layer, it is easy to cause danger to the workers. A device for preventing sand layer landslide during segmented excavation of a sand layer foundation pit is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A device for preventing sand layer landslide by segmented excavation of sand layer foundation pit, comprising

[0007] Base;

[0008] A rotating frame, the rotating frame is fixedly mounted on the top of the base;

[0009] A guard plate rotatably connected to the inner side of the rotating frame;

[0010] A positioning mechanism and a control mechanism, wherein the positioning mechanism is in two groups, and the positioning mechanism cooperates with the guard plate and the control mechanism respectively, the positioning mechanism is used to fix the position of the guard plate, and the control mechanism is used to unlock the position of the guard plate;

[0011] An adjusting mechanism, the adjusting mechanism comprising: a driving frame, a connecting rod, a connecting frame and a sliding frame;

[0012] The driving frame is fixedly connected to the guard plate, the driving frame is rotatably connected to the connecting rod, the connecting rod is rotatably connected to the connecting frame, the connecting frame is fixedly connected to the sliding frame, and the sliding frame matches the base.

[0013] As a preferred solution of the utility model, the control mechanism includes: an unlocking frame, two sliding blocks and two pushing rods;

[0014] The unlocking frame cooperates with the sliding block, the sliding block is slidably connected to the top of the sliding frame, and the sliding block is rotatably connected to the pushing rod.

[0015] As a preferred solution of the utility model, the positioning mechanism includes: a driving rod and a positioning frame;

[0016] The positioning frame is slidably connected to the sliding frame, and the driving rod is fixedly connected to the positioning frame.

[0017] As a preferred solution of the utility model, a plurality of positioning grooves arranged at equal intervals are fixedly installed on the left and right sides of the top of the base, and a positioning block is fixedly installed on the bottom of the positioning frame, and the outer side of the positioning block is detachably connected to the inner wall of the positioning groove.

[0018] As a preferred solution of the utility model, springs are fixedly installed on the tops of the two positioning frames, and a fixed block is fixedly installed on the tops of the springs, and the fixed block is fixedly connected to the sliding frame.

[0019] As a preferred solution of the utility model, a vertical slide groove is provided on the top of the base, and the bottom of the sliding frame is slidably connected to the inner wall of the vertical slide groove. Beneficial Effects

[0020] After the unlocking frame is pushed and moved, the unlocking frame can open the distance between the two sliding blocks to make the two sliding blocks move away from each other, and the two sliding blocks can push the two pushing rods, and the two pushing rods will push the two driving rods, and the two driving rods will drive the two positioning frames to slide upward, and the two positioning frames will be separated from the base, so as to unlock the sliding frame, so that the sliding frame can unlock the position of the guard plate, and the guard plate can be rotated on the rotating frame so that the guard plate can have an angle with the slope of the sand layer, and the guard plate can prevent the sand layer from sliding and protect the workers;

[0021] After the positioning frame is engaged with the base, the positioning frame can connect the base with the sliding frame to block the movement of the sliding frame on the base, thereby positioning the sliding frame so that the sliding frame can be stably located on the top of the base. The sliding frame then positions the position of the connecting rod and the guard plate to stably use the guard plate.

[0022] In the utility model: by fixing the base to the edge of the foundation pit with nails, and then unlocking the position of the sliding frame at the top of the base, the sliding frame can unlock the position of the guard plate, and the position of the guard plate can be freely adjusted. The guard plate can have an angle with the slope of the foundation pit, and when a landslide occurs in the foundation pit, it will be blocked by the guard plate to protect the workers in the foundation pit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a side three-dimensional diagram of the utility model;

[0024] Figure 2 It is a top-down three-dimensional diagram of the utility model;

[0025] Figure 3 It is a three-dimensional diagram of the control mechanism of the utility model;

[0026] Figure 4 It is a three-dimensional diagram of the positioning mechanism of the utility model.

[0027] In the figure: 1. base; 2. rotating frame; 3. guard plate; 4. driving frame; 5. connecting rod; 6. connecting frame; 7. sliding frame; 8. unlocking frame; 9. two sliding blocks; 10. pushing rod; 11. driving rod; 12. positioning frame; 13. spring; 14. fixing block. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Example

[0029] Reference Figure 1-Figure 4 , a device for preventing sand layer landslide by segmented excavation of sand layer foundation pit, comprising

[0030] Base 1;

[0031] A rotating frame 2, the rotating frame 2 is fixedly mounted on the top of the base 1;

[0032] A guard plate 3, the guard plate 3 is rotatably connected to the inner side of the rotating frame 2;

[0033] A positioning mechanism and a control mechanism, wherein the number of the positioning mechanisms is two groups, and the positioning mechanisms cooperate with the guard plate 3 and the control mechanism respectively. The positioning mechanism is used to fix the position of the guard plate 3, and the control mechanism is used to unlock the position of the guard plate 3;

[0034] The adjusting mechanism comprises: a driving frame 4, a connecting rod 5, a connecting frame 6 and a sliding frame 7;

[0035] The driving frame 4 is fixedly connected to the guard plate 3 , the driving frame 4 is rotatably connected to the connecting rod 5 , the connecting rod 5 is rotatably connected to the connecting frame 6 , the connecting frame 6 is fixedly connected to the sliding frame 7 , and the sliding frame 7 cooperates with the base 1 .

[0036] By means of the above structure: by fixing the base 1 to the edge of the foundation pit with nails, and then unlocking the position of the sliding frame 7 at the top of the base 1, the sliding frame 7 can unlock the position of the guard plate 3, and the position of the guard plate 3 can be freely adjusted. The guard plate 3 can have an angle with the slope of the foundation pit, and when a landslide occurs in the foundation pit, it will be blocked by the guard plate 3 to protect the workers in the foundation pit.

[0037] As a preferred solution of the utility model, the control mechanism includes: an unlocking frame 8, two sliding blocks 9 and two push rods 10;

[0038] The unlocking frame 8 cooperates with the sliding block 9, and the sliding block 9 is slidably connected to the top of the sliding frame 7. The sliding block 9 is rotatably connected to the pushing rod 10. After the unlocking frame 8 is pushed and moved, the unlocking frame 8 can open the distance between the two sliding blocks 9 to make the two sliding blocks 9 move away from each other. The two sliding blocks 9 can push the two pushing rods 10, and the two pushing rods 10 will push the two driving rods 11, and the two driving rods 11 will drive the two positioning frames 12 to slide upward, and the two positioning frames 12 will be separated from the base 1, thereby unlocking the sliding frame 7, so that the sliding frame 7 can unlock the position of the guard plate 3, and the guard plate 3 can be rotated on the rotating frame 2 so that the guard plate 3 can have an angle with the slope of the sand layer, and the guard plate 3 can prevent the sand layer from sliding and protect the workers.

[0039] As a preferred solution of the utility model, the positioning mechanism includes: a driving rod 11 and a positioning frame 12;

[0040] The positioning frame 12 is slidably connected to the sliding frame 7, and the driving rod 11 is fixedly connected to the positioning frame 12. After the positioning frame 12 is engaged with the base 1, the positioning frame 12 can connect the base 1 with the sliding frame 7 to block the movement of the sliding frame 7 on the base 1, thereby realizing the positioning of the sliding frame 7, so that the sliding frame 7 can be stably located at the top of the base 1, and the sliding frame 7 then positions the position of the connecting rod 5 and the guard plate 3 to stably use the guard plate 3.

[0041] As a preferred solution of the utility model, a plurality of positioning grooves arranged at equal intervals are fixedly installed on the left and right sides of the top of the base 1, and a positioning block is fixedly installed on the bottom of the positioning frame 12. The outer side of the positioning block and the inner wall of the positioning groove can be detachably engaged. After the positioning block is inserted into the inner side of the positioning groove, the positioning block can block the movement of the sliding frame 7, so that the sliding frame 7 can be stably located on the top of the base 1.

[0042] As a preferred solution of the utility model, springs 13 are fixedly installed on the tops of the two positioning frames 12, and a fixed block 14 is fixedly installed on the tops of the springs 13. The fixed block 14 is fixedly connected to the sliding frame 7. The spring 13 is used to reset the position of the positioning frame 12, so that the positioning frame 12 can automatically unlock the position of the sliding frame 7.

[0043] As a preferred solution of the utility model, a vertical slide groove is opened on the top of the base 1, and the bottom of the sliding frame 7 is slidably connected to the inner wall of the vertical slide groove. The vertical slide groove is used to connect the base 1 and the sliding frame 7, so that the sliding frame 7 can slide stably on the base 1, and the base 1 can stably position the guard plate 3.

[0044] The working principle of the utility model is as follows: when it is necessary to prevent landslides in the foundation pit of the sand layer, the base 1 is first fixed to the edge of the foundation pit with nails, and then the position of the sliding frame 7 is unlocked at the top of the base 1, and the unlocking frame 8 is pushed first. After the unlocking frame 8 is pushed and moved, the unlocking frame 8 can open the distance between the two sliding blocks 9 to make the two sliding blocks 9 move away from each other. The two sliding blocks 9 can push the two pushing rods 10, and the two pushing rods 10 will push the two driving rods 11, and the two driving rods 11 will drive the two positioning frames 12 to slide upward, and the two positioning frames 12 will be separated from the base 1, so as to realize the unlocking of the sliding frame 7. , so that the sliding frame 7 can unlock the position of the guard plate 3, and the guard plate 3 can be rotated on the rotating frame 2, so that the guard plate 3 can have an angle with the slope of the sand layer, and the guard plate 3 can prevent the sand layer from sliding and protect the workers. After adjustment, the positioning frame 12 is released, so that the positioning frame 12 can engage with the base 1. After the positioning frame 12 engages with the base 1, the positioning frame 12 can connect the base 1 with the sliding frame 7 to block the movement of the sliding frame 7 on the base 1, thereby positioning the sliding frame 7, so that the sliding frame 7 can be stably located at the top of the base 1, and the sliding frame 7 then positions the connecting rod 5 and the guard plate 3 to stably use the guard plate 3.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for preventing sand layer landslide during segmented excavation of sand layer foundation pit, characterized in that: include Base (1); A rotating frame (2), the rotating frame (2) being fixedly mounted on the top of the base (1); A guard plate (3), the guard plate (3) being rotatably connected to the inner side of the rotating frame (2); A positioning mechanism and a control mechanism, wherein the positioning mechanism is provided in two groups, the positioning mechanism being respectively matched with the guard plate (3) and the control mechanism, the positioning mechanism being used to fix the position of the guard plate (3), and the control mechanism being used to unlock the position of the guard plate (3); An adjusting mechanism, the adjusting mechanism comprising: a driving frame (4), a connecting rod (5), a connecting frame (6) and a sliding frame (7); The driving frame (4) is fixedly connected to the guard plate (3), the driving frame (4) is rotatably connected to the connecting rod (5), the connecting rod (5) is rotatably connected to the connecting frame (6), the connecting frame (6) is fixedly connected to the sliding frame (7), and the sliding frame (7) is matched with the base (1); The control mechanism comprises: an unlocking frame (8), two sliding blocks (9) and two pushing rods (10); The unlocking frame (8) cooperates with the sliding block (9), the sliding block (9) is slidably connected to the top of the sliding frame (7), and the sliding block (9) is rotatably connected to the push rod (10); The positioning mechanism comprises: a driving rod (11) and a positioning frame (12); The positioning frame (12) is slidably connected to the sliding frame (7), and the driving rod (11) is fixedly connected to the positioning frame (12); The two sliding blocks (9) push the two pushing rods (10) to rotate, and the two pushing rods (10) push the two driving rods (11) to slide upwards.

2. The device for preventing sand layer landslide during segmented excavation of sand layer foundation pit according to claim 1 is characterized in that: A plurality of positioning grooves arranged at equal intervals are fixedly mounted on the left and right sides of the top of the base (1), and a positioning block is fixedly mounted on the bottom of the positioning frame (12), wherein the outer side of the positioning block is detachably engaged with the inner wall of the positioning groove.

3. The device for preventing sand layer landslide during segmented excavation of sand layer foundation pit according to claim 1, characterized in that: A spring (13) is fixedly mounted on the top of each of the two positioning frames (12), a fixed block (14) is fixedly mounted on the top of the spring (13), and the fixed block (14) is fixedly connected to the sliding frame (7).

4. The device for preventing sand layer landslide during segmented excavation of sand layer foundation pit according to claim 1, characterized in that: A vertical slide groove is provided on the top of the base (1), and the bottom of the sliding frame (7) is slidably connected to the inner wall of the vertical slide groove.

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