Limiting device for excavation and grouting of soft soil foundation

Abstract

The utility model discloses a limiting device for soft soil foundation excavation grouting, which comprises a grouting machine and a grouting head, and the left side of the grouting machine is fixedly connected with the top end of a hose. Through cooperative use of a limiting structure, a limiting clamping plate, a displacement outer shell, a displacement inner shell and a spring, the problems that when an existing grouting machine is mechanical equipment used for injecting grout into a stratum, a grouting hole needs to be formed in the ground during use, then an operator holds a grouting head of the grouting machine by hand, the grouting head is placed in the grouting hole for grouting operation, and the grouting efficiency is high are solved. A grouting head is difficult to keep at a vertical angle by means of manpower, and when the grouting head is not vertical, grout flows towards one side under the action of gravity, so that the grout is not uniformly distributed in a grouting area, the grouting amount of some parts is too large, the grouting amount of other parts is not enough, and the grouting reinforcement or repair effect is influenced. However, when a grouting head of a grouting machine is used for grouting during excavation and grouting of an existing soft soil foundation, a component for angle limiting does not exist.

Description

Technical Field

[0001] This utility model belongs to the technical field of grouting machines for excavation and grouting of soft soil foundations, and particularly relates to a limiting device for grouting of soft soil foundations. Background Technology

[0002] Grouting in soft soil foundation excavation is a foundation treatment technology mainly used to improve the engineering properties of soft soil foundations, increase the strength and stability of the foundation, and reduce settlement and deformation. It is commonly used in foundation reinforcement, pit support, and dam reinforcement projects. However, existing technologies have the following problems: A grouting machine is a mechanical device used to inject grout into the soil. During use, grouting holes need to be set up on the ground, and then workers hold the grouting head of the grouting machine and place it into the grouting hole to perform the grouting operation. It is difficult to maintain the grouting head at a vertical angle manually. When the grouting head is not vertical, the grout will flow to one side under gravity, resulting in uneven distribution of the grout in the grouting area. This may lead to excessive grouting in some areas and insufficient grouting in others, affecting the effectiveness of grouting reinforcement or repair. However, existing soft soil foundation excavation grouting methods lack angle limiting components when using the grouting head of the grouting machine. Therefore, a limiting device for soft soil foundation excavation grouting is proposed to solve the above problems. Utility Model Content

[0003] To address the problems of existing technologies, this utility model provides a limiting device for grouting in soft soil foundation excavation. This device offers the advantage of limiting the angle of the grouting head during grouting in soft soil foundation excavation. It solves the problem that existing grouting machines are mechanical devices used to inject grout into the soil. During use, grouting holes need to be set on the ground, and then the operator holds the grouting head and places it in the grouting hole for grouting. It is difficult to maintain the grouting head at a vertical angle manually. When the grouting head is not vertical, the grout will flow to one side under gravity, resulting in uneven distribution of the grout in the grouting area. This may lead to excessive grouting in some areas and insufficient grouting in others, affecting the grouting reinforcement or repair effect. However, existing grouting machines for soft soil foundation excavation lack an angle limiting component during grouting.

[0004] This utility model is implemented as follows: a limiting device for grouting excavation in soft soil foundation includes a grouting machine and a grouting head. The left side of the grouting machine is fixedly connected to the top of a hose, and the bottom of the hose is fixedly connected to the grouting head. Device plates are fixedly connected to both the left and right sides of the grouting head. A device square shell is fixedly connected to the opposite side of the two device plates. An adjusting frame is movably connected to the surface of the device plate. A limiting base is fixedly connected to the bottom of the adjusting frame. A limiting structure is provided in the inner cavity of the device square shell.

[0005] In a preferred embodiment of this utility model, the limiting structure includes two limiting plates. The limiting plates extend through the square shell of the device and outward to the outer side of the inner cavity of the square shell, with a displacement outer shell fixedly connected to the surface of the limiting plates. A displacement inner shell is movably connected to the inner cavity of the displacement outer shell, and the surface of the displacement inner shell is fixedly connected to the inner cavity of the square shell. A spring is fixedly connected to the surface of the limiting plates, and the surface of the spring is fixedly connected to the inner cavity of the square shell. By setting the limiting structure, when the limiting base needs to be adjusted according to the ground height, the limiting structure has the function of adjusting and restricting the position of the limiting base.

[0006] As a preferred embodiment of this utility model, a displacement cylinder is fixedly connected to the top of the limiting plate, and two displacement rotating shells that cooperate with the displacement cylinder are movably connected to the bottom of the inner cavity of the square shell of the device through a rotating shaft. The inner cavity of the displacement rotating shell is movably connected to the surface of the displacement cylinder. By setting the displacement cylinder and the displacement rotating shell, when the displacement rotating shell rotates, it can generate a squeezing force on the displacement cylinder. The displacement cylinder subjected to the squeezing force can drive the limiting plate to move.

[0007] As a preferred embodiment of this utility model, the inner cavity of the square shell of the device is movably connected to two control handles that cooperate with the displacement rotating shell. The surface of the control handle is in contact with the surface of the displacement rotating shell, and the top of the control handle penetrates through the square shell of the device and extends to the outside of the inner cavity of the square shell of the device. By setting the control handle, when the control handle moves, it can generate a squeezing force on the displacement rotating shell.

[0008] As a preferred embodiment of this utility model, a limiting rod is fixedly connected to the inner cavity of the square shell of the device, and a limiting hole is provided on the surface of the control handle to cooperate with the limiting rod. The surface of the limiting rod is movably connected to the inner cavity of the limiting hole. By setting the limiting rod and the limiting hole, pulling the control handle will cause the control handle to move along the limiting hole and the surface of the limiting rod. The cooperation of the limiting hole and the limiting rod has a limiting effect on the movement position of the control handle.

[0009] As a preferred embodiment of this invention, each of the two adjustable frames has a locking plate groove on its opposite sides for use with a limiting plate. The limiting plate and the inner cavity of the locking plate groove are in contact. There are several locking plate grooves, which are evenly distributed on the opposite sides of the two adjustable frames. By setting the locking plate grooves, when the adjustable frame moves to the appropriate position and the control handle is released, the restoring force generated by the spring returning to its shape will drive the limiting plate to lock into the inner cavity of the locking plate groove. The use of the limiting plate and the locking plate groove has a limiting effect on the position of the adjustable frame.

[0010] As a preferred embodiment of this utility model, the front and rear sides of the device plate are fixedly connected with fixing blocks that cooperate with the adjusting frame. The surface of the fixing block is movably connected to the inner cavity of the adjusting frame. By setting the fixing block, when the limiting base moves, it will drive the adjusting frame to move along the surface of the fixing block. The setting of the fixing block has a limiting effect on the movement position of the adjusting frame.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model solves the problem of existing grouting machines, which are mechanical devices used to inject grout into the strata. These machines require grouting holes to be set on the ground, and operators hold the grouting head and place it in the grouting hole for grouting. However, relying on manual labor, it is difficult to keep the grouting head at a vertical angle. When the grouting head is not vertical, the grout will flow to one side under gravity, resulting in uneven distribution of the grout in the grouting area. This may lead to excessive grouting in some areas and insufficient grouting in others, affecting the grouting reinforcement or repair effect. Furthermore, existing grouting machines used for soft soil foundation excavation lack angle-limiting components during grouting.

[0013] 2. By setting a limiting structure, when the displacement cylinder moves, it will drive the limiting plate to move into the inner cavity of the square shell of the device. When the limiting plate moves, it will drive the displacement outer shell to move along the surface of the displacement inner shell. At the same time, the force generated when the limiting plate moves causes the spring to undergo elastic deformation. The restoring force generated by the spring returning to its shape will drive the limiting plate to be locked into the inner cavity of the plate slot. The limiting structure has the function of adjusting and restricting the position of the limiting base. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the connection between the fixing block and the adjusting frame provided in this embodiment of the utility model;

[0016] Figure 3 This is a perspective sectional view of the square shell of the device provided in this embodiment of the utility model;

[0017] Figure 4 This is a three-dimensional schematic diagram showing the connection of the displacement shell, the displacement cylinder, and the limiting plate provided in this embodiment of the utility model.

[0018] In the diagram: 1. Grouting machine; 2. Hoses; 3. Grouting head; 4. Device plate; 5. Device square shell; 6. Adjustable long frame; 7. Limiting base; 8. Limiting structure; 801. Limiting plate; 802. Displacement outer shell; 803. Displacement inner shell; 804. Spring; 9. Displacement cylinder; 10. Displacement rotating shell; 11. Control handle; 12. Limiting rod; 13. Limiting hole; 14. Plate groove; 15. Fixing block. Detailed Implementation

[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown in the figure, the present invention provides a limiting device for grouting excavation in soft soil foundation, including a grouting machine 1 and a grouting head 3. The left side of the grouting machine 1 is fixedly connected to the top end of the hose 2, and the bottom of the hose 2 is fixedly connected to the grouting head 3. Device plates 4 are fixedly connected to both the left and right sides of the grouting head 3. Device shells 5 are fixedly connected to opposite sides of the two device plates 4. An adjusting frame 6 is movably connected to the surface of the device plate 4. A limiting base 7 is fixedly connected to the bottom of the adjusting frame 6. A limiting structure 8 is provided in the inner cavity of the device shell 5.

[0022] refer to Figure 4 The limiting structure 8 includes two limiting plates 801. The limiting plates 801 pass through the square shell 5 of the device and extend to the outside of the inner cavity of the square shell 5 near the adjusting frame 6. A displacement shell 802 is fixedly connected to the surface of the limiting plates 801. A displacement inner shell 803 is movably connected to the inner cavity of the displacement shell 802. The surface of the displacement inner shell 803 is fixedly connected to the inner cavity of the square shell 5. A spring 804 is fixedly connected to the surface of the limiting plates 801. The surface of the spring 804 is fixedly connected to the inner cavity of the square shell 5.

[0023] The above solution is adopted: by setting the limiting structure 8, when the limiting base 7 needs to be adjusted according to the ground height, the limiting structure 8 has the function of adjusting and limiting the position of the limiting base 7.

[0024] refer to Figure 4 The top of the limiting plate 801 is fixedly connected to a displacement cylinder 9. The bottom of the inner cavity of the device square shell 5 is movably connected by a rotating shaft to two displacement rotating shells 10 that cooperate with the displacement cylinder 9. The inner cavity of the displacement rotating shell 10 is movably connected to the surface of the displacement cylinder 9.

[0025] The above scheme is adopted: by setting the displacement cylinder 9 and the displacement rotating shell 10, when the displacement rotating shell 10 rotates, it can generate a squeezing force on the displacement cylinder 9, and the displacement cylinder 9 subjected to the squeezing force can drive the limit plate 801 to move.

[0026] refer to Figure 3 The inner cavity of the device square shell 5 is movably connected to two control handles 11 that cooperate with the displacement rotating shell 10. The surface of the control handle 11 contacts the surface of the displacement rotating shell 10, and the top of the control handle 11 penetrates through the device square shell 5 and extends to the outside of the inner cavity of the device square shell 5.

[0027] The above solution is adopted: by setting a control handle 11, when the control handle 11 moves, it can generate a squeezing force on the displacement shell 10.

[0028] refer to Figure 3 The inner cavity of the device housing 5 is fixedly connected to a limiting rod 12, and the surface of the control handle 11 is provided with a limiting hole 13 that cooperates with the limiting rod 12. The surface of the limiting rod 12 is movably connected to the inner cavity of the limiting hole 13.

[0029] The above solution is adopted: by setting a limiting rod 12 and a limiting hole 13, pulling the control handle 11 will cause the control handle 11 to move along the limiting hole 13 and along the surface of the limiting rod 12. The cooperation of the limiting hole 13 and the limiting rod 12 has a limiting effect on the movement position of the control handle 11.

[0030] refer to Figure 2 Each of the two adjustable long frames 6 has a locking plate groove 14 on its opposite side, which is used to cooperate with the limiting plate 801. The inner cavity of the limiting plate 801 and the locking plate groove 14 are in contact. There are several locking plate grooves 14, which are evenly distributed on the opposite side of the two adjustable long frames 6.

[0031] The above solution is adopted: by setting the card slot 14, when the adjustment frame 6 is moved to the appropriate position, the control handle 11 is released, and the restoring force generated by the spring 804 returning to its shape will drive the limiting card 801 to be locked into the inner cavity of the card slot 14. The cooperation between the limiting card 801 and the card slot 14 has a limiting effect on the position of the adjustment frame 6.

[0032] refer to Figure 2 The front and rear sides of the device plate 4 are fixedly connected with fixing blocks 15 that cooperate with the adjusting frame 6. The surface of the fixing blocks 15 is movably connected to the inner cavity of the adjusting frame 6.

[0033] The above solution is adopted: by setting a fixed block 15, when the limiting base 7 moves, it will drive the adjusting frame 6 to move along the surface of the fixed block 15. The setting of the fixed block 15 has a limiting effect on the movement position of the adjusting frame 6.

[0034] The working principle of this utility model:

[0035] When using the grouting head 3 of the grouting machine 1 for grouting in soft soil foundation excavation, and angle limiting is required, the user first holds the grouting head 3 and moves it vertically into the inner cavity of the grouting hole. Then, the user pulls the control handles 11 towards opposite sides. When the control handles 11 move, they will cause the limiting hole 13 to move along the surface of the limiting rod 12. When the control handles 11 move, they will generate a squeezing force on the displacement rotating shell 10. The two displacement rotating shells 10 subjected to the squeezing force will rotate towards each other through the rotating axis. When the displacement rotating shell 10 rotates, it will cause the displacement cylinder 9 to move. When the displacement cylinder 9 moves, it will cause the limiting plate 801 to move into the inner cavity of the square shell 5 of the device. When the limiting plate 801 moves, it will cause the displacement outer shell 802 to move along the surface of the displacement inner shell 803. At the same time, the force generated when the limiting plate 801 moves... The spring 804 undergoes elastic deformation. When the limiting plate 801 moves completely into the inner cavity of the square shell 5 of the device, the adjusting frame 6 is pulled towards the side closer to the ground, causing the adjusting frame 6 to move along the surface of the fixed block 15. When the adjusting frame 6 moves, it will cause the limiting base 7 to move. When the bottom of the limiting base 7 contacts the ground, the control handle 11 is released. The restoring force generated by the spring 804 returning to its shape will cause the limiting plate 801 to be locked into the inner cavity of the plate groove 14. The cooperation of the limiting plate 801 and the plate groove 14 has a limiting effect on the position of the adjusting frame 6 and the limiting base 7. When the surfaces of the two limiting bases 7 are completely in contact with the ground, the setting of the two limiting bases 7 ensures that the angle of the grouting head 3 is always in a vertical state during grouting, and there will be no tilting phenomenon. At this time, the angle limiting is completed when the grouting head 3 of the grouting machine 1 is used for grouting during soft soil foundation excavation.

[0036] In summary, this limiting device for grouting in soft soil foundation excavation, through the coordinated use of the limiting structure 8, limiting plate 801, displacement outer shell 802, displacement inner shell 803, and spring 804, solves the problem that existing grouting machines are mechanical devices used to inject grout into the stratum. During use, grouting holes need to be set on the ground, and then the operator holds the grouting head of the grouting machine and places it into the grouting hole for grouting. Relying on manpower, it is difficult to keep the grouting head at a vertical angle. When the grouting head is not vertical, the grout will flow to one side under the action of gravity, resulting in uneven distribution of the grout in the grouting area. This may lead to excessive grouting in some areas and insufficient grouting in others, affecting the grouting reinforcement or repair effect. However, existing grouting machines used for grouting in soft soil foundation excavation lack angle limiting components during grouting.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A limiting device for grouting in soft soil foundation excavation, comprising a grouting machine (1) and a flexible hose (2), characterized in that: The left side of the grouting machine (1) is fixedly connected to the top of the hose (2), and the bottom of the hose (2) is fixedly connected to the grouting head (3). The left and right sides of the grouting head (3) are fixedly connected to the device plate (4), and the opposite sides of the two device plates (4) are fixedly connected to the device shell (5). The surface of the device plate (4) is movably connected to the adjusting frame (6), and the bottom of the adjusting frame (6) is fixedly connected to the limiting base (7). The inner cavity of the device shell (5) is provided with a limiting structure (8).

2. The limiting device for grouting excavation in soft soil foundation as described in claim 1, characterized in that: The limiting structure (8) includes two limiting plates (801). The limiting plate (801) extends through the device square shell (5) and to the outside of the inner cavity of the device square shell (5) on the side near the adjusting frame (6). A displacement shell (802) is fixedly connected to the surface of the limiting plate (801). A displacement inner shell (803) is movably connected to the inner cavity of the displacement shell (802). The surface of the displacement inner shell (803) is fixedly connected to the inner cavity of the device square shell (5). A spring (804) is fixedly connected to the surface of the limiting plate (801). The surface of the spring (804) is fixedly connected to the inner cavity of the device square shell (5).

3. A limiting device for grouting excavation in soft soil foundation as described in claim 2, characterized in that: The top of the limiting plate (801) is fixedly connected to a displacement cylinder (9), and the bottom of the inner cavity of the device square shell (5) is movably connected by a rotating shaft to two displacement rotating shells (10) that cooperate with the displacement cylinder (9). The inner cavity of the displacement rotating shell (10) is movably connected to the surface of the displacement cylinder (9).

4. A limiting device for grouting excavation in soft soil foundation as described in claim 3, characterized in that: The inner cavity of the device square shell (5) is movably connected to two control handles (11) that cooperate with the displacement rotating shell (10). The surface of the control handle (11) is in contact with the surface of the displacement rotating shell (10). The top of the control handle (11) penetrates the device square shell (5) and extends to the outside of the inner cavity of the device square shell (5).

5. A limiting device for grouting excavation in soft soil foundation as described in claim 4, characterized in that: The inner cavity of the square shell (5) of the device is fixedly connected to a limiting rod (12), and the surface of the control handle (11) is provided with a limiting hole (13) that cooperates with the limiting rod (12). The surface of the limiting rod (12) is movably connected to the inner cavity of the limiting hole (13).

6. A limiting device for grouting excavation in soft soil foundation as described in claim 2, characterized in that: Both of the two adjustable frames (6) have a slot (14) on opposite sides that cooperates with the limiting plate (801). The inner cavity of the limiting plate (801) and the slot (14) are in contact. There are several slots (14) and they are evenly distributed on opposite sides of the two adjustable frames (6).

7. A limiting device for grouting excavation in soft soil foundation as described in claim 1, characterized in that: The front and rear sides of the device plate (4) are fixedly connected with fixing blocks (15) that cooperate with the adjusting frame (6), and the surface of the fixing blocks (15) is movably connected to the inner cavity of the adjusting frame (6).

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