High-pressure jet grouting pile machine convenient to operate

Abstract

The utility model discloses a high-pressure jet grouting pile machine convenient to operate, and relates to the field of high-pressure jet grouting pile machines, the high-pressure jet grouting pile machine convenient to operate comprises a jet grouting pile machine main body, the outer wall of the jet grouting pile machine main body is connected with a grouting pipe through a sliding seat, the bottom end of the grouting pipe is connected with a sleeve, and a positioning mechanism is arranged on the jet grouting pile machine main body; the positioning mechanism comprises a positioning unit and a transmission unit; the positioning unit is used for positioning the position of the sleeve; and the transmission unit is used for providing thrust for the movement of the positioning unit. By arranging the positioning mechanism, when the inserted sleeve needs to be connected with the grouting pipe, the two symmetrically arranged movable rods can be synchronously driven to be close to each other by applying outward pulling force to one movable rod, so that the positioning block connected with the end part of the fixed rod is in contact with the outer wall of the sleeve to position the sleeve; the sleeve is kept at the descending center position of the grouting pipe, manual positioning operation is avoided, use is convenient, and the working efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the field of high-pressure rotary jet pile machines, in particular to a high-pressure rotary jet pile machine which is easy to operate. Background Art

[0002] High-pressure rotary jet piles use high-pressure rotating nozzles to spray cement slurry into the soil layer and mix it with the soil to form a continuous overlapping cement reinforcement body.

[0003] In traditional soil reinforcement, single, double, and triple rotary jet pile construction methods are often used. A high-pressure rotary jet pile machine rotates and stirs the soil while injecting reinforcement media such as water, air, and slurry into the required construction land through a rotary jet pipe for reinforcement. During use, a casing is inserted after drilling a hole in the soil, and then a grouting pipe is inserted into the casing. The high-pressure pump is turned on to inject cement mortar. During the insertion of the casing, the top thread groove of the casing needs to be aligned with the outer wall thread groove of the grouting pipe to facilitate the docking of the casing and the grouting pipe. Based on this, in order to facilitate the rapid alignment of the casing and the grouting pipe, the utility model proposes a high-pressure rotary jet pile machine that is easy to operate. Utility Model Content

[0004] The purpose of the present invention is to provide a high-pressure rotary grouting pile machine that is easy to operate in order to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a high-pressure rotary jet pile driver that is easy to operate, comprising a rotary jet pile driver body, an outer wall of the rotary jet pile driver body being connected to a grouting pipe via a sliding seat, a bottom end of the grouting pipe being connected to a sleeve, and a positioning mechanism being provided on the rotary jet pile driver body;

[0006] The positioning mechanism includes a positioning unit and a transmission unit;

[0007] The positioning unit is used to locate the position of the sleeve;

[0008] The transmission unit is used to provide thrust for the movement of the positioning unit.

[0009] As a further solution of the present invention: the positioning unit includes a fixing seat, a movable rod, a positioning rod, and a positioning block;

[0010] The fixing seat is fixed to the outer wall of the rotary grouting pile driver body and surrounds the outer side of the sleeve, and the fixing seat is used to provide a guide for the axial movement of the movable rod;

[0011] The movable rod is axially slidably mounted on the top of the fixed seat, and the movable rod is used to synchronously drive the positioning block to move axially;

[0012] The positioning rod is fixed to the outer wall of the bottom end of the movable rod and passes through the fixing seat, and the positioning rod is used to provide a guide for the axial movement of the movable rod;

[0013] The positioning block is fixed on the end of the movable rod, and is used to position the sleeve.

[0014] As a further solution of the present invention: the transmission unit includes a guide groove, a stop rod, and a connecting rod;

[0015] The push rod is laterally slidably mounted on the inner wall of the jet grouting machine body and extends to the top of the movable rod. The push rod is used to give the movable rod an axial thrust.

[0016] The guide groove is provided at the top end of the movable rod, and the guide groove is used to transmit the axial thrust from the stop rod to the movable rod;

[0017] The connecting rod is connected to the end of the supporting rod and is located inside the main body of the rotary jet pile driver. The connecting rod is used to synchronously drive the other supporting rod to move.

[0018] As a further solution of the present invention: the number of the movable rod, the positioning rod and the positioning block is set to two, and the two movable rods, the positioning rods and the positioning blocks are symmetrically distributed on the top of the fixing seat.

[0019] As a further solution of the present invention: the outer wall of the positioning block is in a semicircular structure as a whole, and the inner side of the positioning block matches the outer wall of the sleeve.

[0020] As a further solution of the present invention: a guide block extending to the inner side of the guide groove is formed at the bottom end of the support rod, and the outer wall of the guide block matches the inner side of the guide groove.

[0021] As a further solution of the present invention: the outer wall of the guide groove is in an inclined state as a whole, and a sliding groove for lateral movement of the connecting rod is formed inside the main body of the rotary jet pile driver.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] By setting up a positioning mechanism, when it is necessary to connect the inserted sleeve and the grouting pipe, by giving a movable rod an outward pulling force, the two symmetrically arranged movable rods can be simultaneously driven to approach each other, so that the positioning block connected to the end of the fixed rod contacts the outer wall of the sleeve to position the sleeve, so that the sleeve is kept in the center position of the grouting pipe when it is lowered, avoiding manual positioning operations, facilitating use, and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic structural diagram of the positioning mechanism of the present utility model;

[0026] Figure 3 This is a schematic diagram of the separation structure of the positioning block of the utility model.

[0027] In the figure: 1. main body of the jet grouting pile driver; 2. grouting pipe; 3. casing; 4. positioning mechanism; 401. fixing seat; 402. movable rod; 403. positioning rod; 404. positioning block; 405. guide groove; 406. support rod; 407. connecting rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 3 In the embodiment of the utility model, a high-pressure rotary grouting pile driver with convenient operation includes a rotary grouting pile driver body 1, an outer wall of the rotary grouting pile driver body 1 is connected to a grouting pipe 2 through a sliding seat, a sleeve 3 is connected to the bottom end of the grouting pipe 2, and a positioning mechanism 4 is provided on the rotary grouting pile driver body 1;

[0030] The positioning mechanism 4 includes a positioning unit and a transmission unit;

[0031] The positioning unit is used to locate the position of the sleeve 3;

[0032] The transmission unit is used to provide thrust for the movement of the positioning unit;

[0033] The positioning unit includes a fixing seat 401, a movable rod 402, a positioning rod 403, and a positioning block 404;

[0034] The fixing seat 401 is fixed to the outer wall of the rotary jet pile driver body 1 and surrounds the outer side of the sleeve 3. The fixing seat 401 is used to provide a guide for the axial movement of the movable rod 402.

[0035] The movable rod 402 is axially slidably mounted on the top of the fixed seat 401, and the movable rod 402 is used to synchronously drive the positioning block 404 to move axially;

[0036] The positioning rod 403 is fixed to the outer wall of the bottom end of the movable rod 402 and passes through the fixing seat 401. The positioning rod 403 is used to provide a guide for the axial movement of the movable rod 402.

[0037] The positioning block 404 is fixed to the end of the movable rod 402, and the positioning block 404 is used to locate the position of the sleeve 3;

[0038] The transmission unit includes a guide groove 405, a stop rod 406, and a connecting rod 407;

[0039] The push rod 406 is laterally slidably mounted on the inner wall of the jet grouting machine body 1 and extends to the top of the movable rod 402. The push rod 406 is used to give the movable rod 402 an axial thrust.

[0040] The guide groove 405 is formed at the top end of the movable rod 402 and is used to transmit the axial thrust from the stop rod 406 to the movable rod 402;

[0041] The connecting rod 407 is connected to the end of the supporting rod 406 and is located inside the rotary jet pile driver body 1. The connecting rod 407 is used to synchronously drive the other supporting rod 406 to move.

[0042] In this embodiment, when using this device, the sleeve 3 is inserted into the punched hole groove, so that the sleeve 3 passes through the inner side of the fixed seat 401 and falls into the hole groove. In this process, the push rod 406 is manually pulled outward, and the push rod 406 moving outward synchronously drives another push rod 406 to move through the connecting rod 407, so that the guide block at the bottom of the push rod 406 gives the guide groove 405 an extrusion thrust, and the stressed guide groove 405 transmits the axial movement thrust to the movable rod 402, so that the movable rod 402 drives the positioning rod 403 along the fixed seat 4 01 moves axially on the inside, and the positioning block 404 at the end of the movable rod 402 will also be close to the outer wall of the sleeve 3, quickly positioning the position of the sleeve 3, so that the axis of the sleeve 3 is aligned with the axis of the grouting pipe 2, and then the end of the grouting pipe 2 is aligned with the top of the sleeve 3 when the driving motor drives the grouting pipe 2 to move downward, and another motor that drives the grouting pipe 2 to rotate drives the grouting pipe 2 to rotate along the inner thread of the sleeve 3 to complete the connection of the grouting pipe 2 and the sleeve 3, which is convenient for the quick connection operation of the grouting pipe 2 and the sleeve 3, and further improves the work efficiency.

[0043] Please refer to Figure 1-Figure 3 The number of movable rods 402, positioning rods 403, and positioning blocks 404 is set to two. The two movable rods 402, positioning rods 403, and positioning blocks 404 are symmetrically distributed at the top of the fixed seat 401. The outer wall of the positioning block 404 is a semicircular structure as a whole. The inner side of the positioning block 404 matches the outer wall of the sleeve 3. The bottom end of the support rod 406 is formed with a guide block extending to the inside of the guide groove 405. The outer wall of the guide block matches the inner side of the guide groove 405. The outer wall of the guide groove 405 is tilted as a whole. The interior of the rotary grouting pile machine body 1 is formed with a slide groove for lateral movement of the connecting rod 407.

[0044] In this embodiment: through this structure, the two push rods 406 can be synchronously driven to approach each other under the action of the connecting rod 407, so that the positioning blocks 404 can be synchronously approached to each other under the action of the guide groove 405, so that the inner side of the guide groove 405 is docked with the outer wall of the sleeve 3, giving the sleeve 3 a thrust, so that the axis of the sleeve 3 is aligned with the axis of the grouting pipe 2.

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

Claims

1. A high-pressure rotary jet pile driver that is easy to operate, comprising a rotary jet pile driver body (1), the outer wall of the rotary jet pile driver body (1) is connected to a grouting pipe (2) via a sliding seat, the bottom end of the grouting pipe (2) is connected to a sleeve (3), characterized in that: A positioning mechanism (4) provided on the main body (1) of the jet grouting pile driver; The positioning mechanism (4) comprises a positioning unit and a transmission unit; The positioning unit is used to locate the position of the sleeve (3); The transmission unit is used to provide thrust for the movement of the positioning unit.

2. The easy-to-operate high-pressure jet grouting machine according to claim 1, characterized in that: The positioning unit comprises a fixed seat (401), a movable rod (402), a positioning rod (403), and a positioning block (404); The fixing seat (401) is fixed to the outer wall of the jet grouting pile driver body (1) and surrounds the outer side of the sleeve (3), and the fixing seat (401) is used to provide a guide for the axial movement of the movable rod (402); The movable rod (402) is axially slidably mounted on the top of the fixed seat (401), and the movable rod (402) is used to synchronously drive the positioning block (404) to move axially; The positioning rod (403) is fixed to the outer wall of the bottom end of the movable rod (402) and passes through the fixing seat (401), and the positioning rod (403) is used to provide guidance for the axial movement of the movable rod (402); The positioning block (404) is fixed to the end of the movable rod (402), and the positioning block (404) is used to position the sleeve (3).

3. The easy-to-operate high-pressure jet grouting machine according to claim 2, characterized in that: The transmission unit comprises a guide groove (405), a stop rod (406), and a connecting rod (407); The push rod (406) is laterally slidably mounted on the inner wall of the jet pile driver body (1) and extends to the top end of the movable rod (402). The push rod (406) is used to impart axial thrust to the movable rod (402). The guide groove (405) is provided at the top end of the movable rod (402), and the guide groove (405) is used to transmit the axial thrust from the stop rod (406) to the movable rod (402); The connecting rod (407) is connected to the end of the support rod (406) and is located inside the rotary jet pile driver body (1). The connecting rod (407) is used to synchronously drive the other support rod (406) to move.

4. The easy-to-operate high-pressure jet grouting machine according to claim 2, characterized in that: The number of the movable rod (402), the positioning rod (403), and the positioning block (404) is set to two, and the two movable rods (402), the positioning rod (403), and the positioning block (404) are symmetrically distributed on the top end of the fixing seat (401).

5. The easy-to-operate high-pressure rotary jet pile driver according to claim 2, characterized in that: The outer wall of the positioning block (404) is in a semicircular structure as a whole, and the inner side of the positioning block (404) matches the outer wall of the sleeve (3).

6. The easy-to-operate high-pressure rotary jet pile driver according to claim 3, characterized in that: A guide block extending to the inner side of the guide groove (405) is formed at the bottom end of the support rod (406), and the outer wall of the guide block matches the inner side of the guide groove (405).

7. The easy-to-operate high-pressure jet grouting machine according to claim 3, characterized in that: The outer wall of the guide groove (405) is in an inclined state as a whole, and a sliding groove for the lateral movement of the connecting rod (407) is formed inside the main body (1) of the jet grouting pile driver.

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