Mud preventing device of high-pressure jet grouting pile machine

Abstract

The utility model relates to the technical field of building construction, in particular to a high-pressure jet grouting pile machine mud prevention device which comprises a mud prevention part, the mud prevention part comprises a mud prevention barrel, a limiting piece and a cover plate, a channel is formed in one side of the mud prevention barrel, the limiting piece is annularly arranged in the mud prevention barrel in a surrounding mode, an opening is formed in the limiting piece, the opening and the channel are aligned, and the cover plate is arranged on the limiting piece. The lower end of the mud-proof barrel is connected with the ground, the cover plate is arranged at the upper end of the mud-proof barrel, a through hole is formed in the cover plate, and a drill spindle of the high-pressure jet grouting pile machine penetrates through the through hole and extends into the mud-proof barrel. According to the high-pressure jet grouting pile machine, the supporting plate abuts against the supporting frame, the supporting plate can reduce vibration of the high-pressure jet grouting pile machine in the working process, the stirring process is more stable, due to the fact that the surface of the limiting piece is obliquely arranged, cement soil can flow into the drainage groove along the shape of the limiting piece when splashed out, cement soil can be prevented from being splashed, and the service life of the cement soil is prolonged. And the cement soil can stably flow in the drainage groove.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a mud-proof device for a high-pressure jet grouting pile machine. Background Technology

[0002] When excavating a foundation pit, a deep-mixed cement-soil retaining wall is required to support the pit. The deep-mixed cement-soil retaining wall is a type of retaining wall that uses a high-pressure jet grouting machine to forcibly mix the soil and the input cement slurry on-site, forming a continuous overlapping cement-soil columnar solid retaining wall.

[0003] The existing mixing method involves first digging a drainage channel on one side of the ground hole. The high-pressure jet grouting machine includes a support frame and a drill shaft. The support frame is aligned with the ground, and the drill shaft is aligned with the ground hole. The drill shaft is driven to rotate inside the support frame and then gradually drill into the ground hole. During the mixing of cement and soil, cement and soil will overflow from the ground hole and flow away from the drainage channel. During the mixing process, some cement and soil will splash out from the ground hole. The splashed cement and soil not only affects the surrounding environment but also adheres to the high-pressure jet grouting machine. After the cement and soil solidifies, it is difficult to remove from the high-pressure jet grouting machine. Utility Model Content

[0004] In view of the technical problems existing in the background art, the purpose of this utility model is to provide a mud prevention device for high-pressure jet grouting pile machine, which can prevent cement and soil from splashing out during the mixing process and protect the site environment.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A mud-proof device for a high-pressure jet grouting pile machine includes a mud-proof section, which comprises a mud-proof cylinder, a limiting member, and a cover plate. A channel is provided on one side of the mud-proof cylinder, and the limiting member is annularly arranged inside the mud-proof cylinder. The lower end of the mud-proof cylinder is connected to the ground, and the cover plate is provided at the upper end of the mud-proof cylinder. A through hole is provided on the cover plate, through which the drill shaft of the high-pressure jet grouting pile machine extends into the mud-proof cylinder.

[0007] Preferably, a support portion is provided at one end of the mud-proof part. The support portion includes several connecting rods and a support plate. The connecting rods are connected to the outer side of the mud-proof cylinder, and the support plate is connected to one end of the connecting rods.

[0008] Preferably, the support plate is provided with holes, and the holes and through holes are arranged concentrically.

[0009] Preferably, the connecting rod includes a sleeve and a support rod, the support rod and the sleeve are slidably connected, and the support rod can extend from one end of the sleeve. The sleeve is provided with a plurality of through grooves, the direction of which is perpendicular to the sliding direction of the support rod.

[0010] Preferably, a support block is detachably provided in the through groove, and the bottom of the support rod is supported on the support block.

[0011] Preferably, the mud-proof cylinder is provided with several slots, and the limiting member is provided with a protrusion. When the limiting member and the mud-proof cylinder are connected, the protrusion extends into the slot.

[0012] Preferably, the cover plate and the mud-proof cylinder are detachably connected, and the cover plate and the limiting member abut against each other.

[0013] This utility model has the following advantages and beneficial effects:

[0014] In this invention, the mud-proof cylinder is placed at the ground hole position, the limiting member is inserted into the mud-proof cylinder, and the cover plate and the mud-proof cylinder are connected. The position of the support rod is adjusted according to the height of the support frame so that the support plate and the support frame abut. The support plate can reduce the vibration of the high-pressure jet grouting machine during operation and make the mixing process more stable. Due to the inclined surface of the limiting member, when the cement and soil are sprayed out, they will flow into the drainage channel along the shape of the limiting member. This not only prevents the cement and soil from splashing, but also makes the cement and soil flow more smoothly in the drainage channel. Attached Figure Description

[0015] Figure 1 A three-dimensional diagram showing the connection of a mud-proof device for a high-pressure jet grouting pile machine provided by this utility model.

[0016] Figure 2 This is a connection diagram of a high-pressure jet grouting machine mud-proof device provided by this utility model.

[0017] Figure 3 A three-dimensional structural diagram of a high-pressure jet grouting pile machine mud-proof device provided by this utility model.

[0018] Figure 4 An exploded view of the mud-proof section of a high-pressure jet grouting machine mud-proof device provided by this utility model.

[0019] Reference numerals in the attached drawings: 1-High-pressure jet grouting machine, 101-Support frame, 102-Drill shaft, 2-Ground hole, 21-Drainage channel, 3-Mudproof cylinder, 31-Slot, 32-Channel, 4-Limiting component, 41-Protrusion, 42-Opening, 5-Cover plate, 51-Through hole, 6-Sleeve, 61-Through groove, 62-Support block, 7-Support plate, 71-Support rod, 72-Hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] Example

[0023] like Figures 1-3 As shown, a mud-proof device for a high-pressure jet grouting pile machine includes a mud-proof section, which comprises a mud-proof cylinder 3, a limiting member 4, and a cover plate 5. A channel 32 is provided on one side of the mud-proof cylinder 3. The lower end of the mud-proof cylinder 3 is inserted into the ground. A support section is provided at one end of the mud-proof cylinder 3. The support section includes several connecting rods and a support plate 7. The connecting rods are connected to the outer side of the mud-proof cylinder 3. The support plate 7 is connected to one end of the connecting rods. The connecting rods include a sleeve 6 and a support rod 71. The support rod 71 and the sleeve 6 are slidably connected. The support rod 71 is fixedly connected to one end of the support plate 7. Several... A through groove 61 is arranged perpendicular to the sliding direction of the support rod 71. A support block 62 is detachably installed inside the through groove 61. The support rod 71 extends into the sleeve 6, and the bottom of the support rod 71 is supported on the support block 62. Several through grooves 61 are arranged at intervals. The height of the support plate 7 can be adjusted by adjusting the position of the support rod 71 to adapt to different models of high-pressure jet grouting pile machine 1. The mud-proof device is installed below the high-pressure jet grouting pile machine 1. Adjusting the position of the support plate 7 makes the support plate 7 and the support frame 101 abut together, reducing the vibration of the high-pressure jet grouting pile machine 1 during operation and making the entire mixing process more stable and efficient.

[0024] like Figures 1-4As shown, the limiting member 4 is annularly arranged inside the mud-proof cylinder 3, and the limiting member 4 is provided with an opening 42, which is aligned with the channel 32. The channel 32 is aligned and connected with the drainage channel 21. Several slots 31 are provided on the inner wall of the mud-proof cylinder 3, and protrusions 41 are provided on the limiting member 4. When the limiting member 4 and the mud-proof cylinder 3 are connected, the protrusions 41 extend into the slots 31. The mud-proof cylinder 3 and the limiting member 4 are connected by a snap-fit ​​method, which is convenient for disassembly and assembly. After long-term use, the limiting member 4 can be removed and replaced. At the same time, it can prevent the limiting member 4 and the mud-proof cylinder 3 from sliding. The cover plate 5 is set at the upper end of the mud-proof cylinder 3. The cover plate 5 and the mud-proof cylinder 3 are connected by bolts. When the cover plate 5 and the mud-proof cylinder 3 are connected, the cover plate 5 and the limiting member 4 abut against each other. The cover plate 5 fixes the limiting member 4 and the mud-proof cylinder 3. The cover plate 5 is provided with a through hole 51 and a support plate. Hole 72 is provided on the 7, and hole 72 and through hole 51 are concentrically arranged. Before the high-pressure jet grouting machine 1 mixes, the anti-mud device is placed at the position of the ground hole 2, so that hole 72, through hole 51 and ground hole 2 are aligned. Drill shaft 102 passes through hole 72 and through hole 51 in sequence and extends into ground hole 2 for mixing. During the mixing process, cement soil seeps out from ground hole 2. Due to the inclined surface of the limiting part 4, the seeping cement soil flows out along the direction of channel 32 and flows away along drainage channel 21, avoiding cement soil splashing, protecting the cleanliness of the construction site, and preventing the seeping cement soil from adhering to the high-pressure jet grouting machine 1, which would affect the mixing quality. After setting the anti-mud device, there is no need to enlarge ground hole 2, and there is no need to dig deeper drainage channel 21. It can not only prevent cement soil splashing, but also make cement soil flow more smoothly in drainage channel 21.

[0025] Working principle: First, place the mud-proof cylinder 3 at the position of the ground hole 2, insert the limiting piece 4 into the mud-proof cylinder 3, and connect the cover plate 5 and the mud-proof cylinder 3. Insert the support rod 71 into the sleeve 6, adjust the position of the support rod 71 according to the height of the support frame 101, and insert the support block 62 into the through groove 61 so that the bottom of the support rod 71 is supported on the support block 62. The upper end of the support plate 7 abuts against the support frame 101 so that the hole 72 is aligned with the ground hole 2. Fix the mud-proof cylinder 3 on the ground, and the drill shaft 102 extends into the ground hole 2 from the hole 72 to mix the cement soil.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and variations. 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 high-pressure jet grouting pile machine mud prevention device, characterized in that, The mud-proof part comprises a mud-proof cylinder, a limiting piece and a cover plate, one side of the mud-proof cylinder is provided with a channel, the limiting piece is annularly arranged inside the mud-proof cylinder and is provided with an opening, the opening is aligned with the channel, the lower end of the mud-proof cylinder is connected with the ground, the cover plate is arranged at the upper end of the mud-proof cylinder, the cover plate is provided with a through hole, and the drill shaft of the high-pressure rotary jet pile machine extends into the interior of the mud-proof cylinder through the through hole.

2. The mud prevention device of a high-pressure jet grouting pile machine according to claim 1, wherein One end of the mud-proof part is provided with a supporting part, the supporting part comprises a plurality of connecting rod pieces and a supporting plate, the connecting rod pieces are connected with the outer side of the mud-proof cylinder, and the supporting plate is connected with one end of the connecting rod pieces.

3. The high-pressure jet grouting pile machine mud prevention device according to claim 2, characterized in that, The supporting plate is provided with a hole, and the hole and the through hole are concentrically arranged.

4. The mud prevention device of a high-pressure jet grouting pile machine according to claim 2, characterized in that, The connecting rod piece comprises a sleeve and a supporting rod, the supporting rod and the sleeve are slidingly connected, the supporting plate and the supporting rod are fixedly connected, the sleeve is provided with a plurality of through grooves, and the direction of the through grooves is perpendicular to the sliding direction of the supporting rod.

5. The anti-mud device of a high-pressure jet grouting pile machine according to claim 4, characterized in that, The supporting block is detachably arranged in the through groove, and the bottom of the supporting rod is supported on the supporting block.

6. The high-pressure jet grouting pile machine mud prevention device according to claim 1, characterized in that, The mud-proof cylinder is provided with a plurality of clamping grooves, the limiting piece is provided with a protruding block, and when the limiting piece is connected with the mud-proof cylinder, the protruding block extends into the clamping groove.

7. The device as claimed in claim 1, wherein, The cover plate and the limiting piece are abutted.

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