Pressure-adjustable directional positioning grouting sleeve valve pipe

Abstract

The utility model relates to the technical field of grouting equipment, in particular to a pressure-adjustable directional positioning grouting sleeve valve pipe which comprises a sleeve valve pipe body, a grouting hole, a flow limiting pipe, a mounting cavity, a closure cavity and a closure mechanism, a cavity is formed in the center of the sleeve valve pipe body in a penetrating mode, and the grouting hole is formed in the side wall of the sleeve valve pipe body; a grouting hole is formed in the sleeve valve pipe body, the grouting hole is communicated with a cavity of the sleeve valve pipe body, a flow limiting pipe is arranged in the grouting hole, a mounting cavity and a cut-off cavity are formed in the flow limiting pipe in a penetrating mode, a cut-off head in the cut-off mechanism is used for cutting off slurry in the sleeve valve pipe body, and when the pressure of the slurry in the sleeve valve pipe body reaches a certain value, the cut-off head can cut off the slurry in the sleeve valve pipe body. When the sleeve valve pipe body is used for grouting, mud pushes the closure head to slide in the mounting cavity, the mud can be sprayed out of the flow guide through hole through the flow guide through hole, then grouting operation is achieved, and meanwhile through the arrangement of the pressure adjustable structure of the closure head, when grouting is conducted through the sleeve valve pipe body, the mud can be sprayed out of different grouting holes through different pressures.

Description

Technical Field

[0001] The present application relates to the technical field of grouting equipment, and in particular to a pressure-adjustable directional positioning grouting sleeve valve pipe. Background Art

[0002] The Dujiatai flood storage area flood storage and safety construction project (Wuhan section), a major national water conservancy project in Hubei Province, is located in Hannan District, Wuhan City. The contract volume of the cone grouting for the 25+000~44+695 embankment reinforcement project of the right embankment of Tongshun River alone is 420,000 linear meters. The grouting location is from the center axis of the existing embankment to the outer embankment slope, with 7 rows arranged. The spacing between cone holes is 1.50m and the row spacing is 1.0m, arranged in a plum blossom shape. The cone grouting depth is 1.0m below the elevation of the inner embankment foot. The basic principle of cone grouting is to use the characteristics of mud such as certain fluidity, and to use the cone to drill holes according to a certain row spacing and hole spacing to fill the cracks, caves, rotten straw, piles, tree roots, etc. inside the structure with mud to form a whole, so that it reaches a state of consolidation and overall stress.

[0003] At present, in order to enable the grouting to be poured into the predetermined position, a grouting sleeve valve pipe is generally required to divert the slurry and perform directional positioning pouring during the pouring.

[0004] In the related art, since the sleeve valve pipe is mainly composed of a PVC outer pipe and a rubber sleeve, it is connected by a polyvinyl chloride joint and sealed at both ends with a plug. During grouting, the rubber sleeve is pushed open by the pressure of the mud to realize the grouting operation. However, since the pressure of the current rubber sleeve is constant, during grouting, if the pressure reaches a certain value, the rubber sleeve arranged outside the grouting hole of the section of PVC outer pipe will be pushed open as a whole, and the mud will be injected around the outer pipe. However, in some cases, if directional grouting is required, the current sleeve valve pipe cannot achieve this, and there are certain limitations. Utility Model Content

[0005] In order to solve the problem that during grouting, the current sleeve valve tube injects mud in all directions and cannot perform directional grouting, the present application provides a pressure-adjustable directional positioning grouting sleeve valve tube.

[0006] The present application provides a pressure-adjustable directional positioning grouting sleeve valve pipe adopts the following technical solution:

[0007] A pressure-adjustable directional positioning grouting sleeve valve pipe, comprising:

[0008] A sleeve valve tube body, wherein a cavity is provided through the center of the sleeve valve tube body, and a grouting hole is provided on the side wall of the sleeve valve tube body, wherein the grouting hole is connected to the cavity of the sleeve valve tube body, a flow limiting tube is provided in the grouting hole, and an installation cavity and a flow intercepting cavity are provided through the interior of the flow limiting tube;

[0009] A cut-off mechanism for intercepting slurry is provided in the installation cavity, and includes a slurry guide pipe, a cut-off head, a butt joint pipe and a diversion flow hole. The butt joint pipe is coaxially fixed between the cut-off head and the slurry guide pipe. The overall structure composed of the slurry guide pipe, the cut-off head and the butt joint pipe is slidably connected in the installation cavity, and the cut-off head abuts the connection between the cut-off cavity and the installation cavity. The diversion flow holes are respectively provided on the cut-off head and the butt joint pipe.

[0010] By adopting the above technical solution, the intercepting head in the intercepting mechanism is used to intercept the mud in the sleeve valve tube body, and when the mud pressure in the sleeve valve tube body reaches a certain value, the mud pushes the intercepting head to slide in the installation cavity, and enables the mud to be ejected from the diversion flow hole through the diversion flow hole, thereby realizing the grouting operation, and at the same time, by setting the pressure-adjustable structure of the intercepting head, when grouting through the sleeve valve tube body, the mud can be ejected from different grouting holes by different pressures, realizing directional grouting operation, which is simple and efficient while also achieving precise grouting.

[0011] Optionally, the diameter of the intercepting cavity is smaller than that of the mounting cavity, and the intercepting head has a conical structure, and the guide hole provided on the intercepting head is located in the mounting cavity.

[0012] By adopting the above technical solution, using cavity structures of different sizes and combining with the cut-off head, the rapid blocking and penetration of the internal cavity of the flow limiting tube can be achieved.

[0013] Optionally, the shut-off mechanism further includes a sealing disk, a chuck and a reset piece, the sealing disk being coaxially fixed on the slurry guide tube, the chuck being arranged in the installation cavity at one end away from the shut-off cavity, the reset piece being sleeved on the outside of the slurry guide tube, and one end of the reset piece abutting against the sealing disk, and the other end abutting against the chuck, and a circular hole being provided through the center of the chuck, the slurry guide tube passing through the circular hole of the chuck and being slidably connected to the chuck.

[0014] By adopting the above technical solution, the elastic force of the reset member is utilized to enable the shutoff head to firmly abut against one side of the shutoff cavity, and the shutoff head can be quickly reset after grouting is completed.

[0015] Optionally, the sealing disk is in contact with the inner wall of the intercepting cavity and is slidably connected thereto.

[0016] By adopting the above technical solution, the sealing disk is used to intercept the mud, so that the mud flows into the slurry guide pipe from the diversion hole of the butt pipe and is ejected through the slurry guide pipe.

[0017] Optionally, an outer wall of the chuck is provided with an adjusting thread, and a docking thread is provided in the installation cavity, and the chuck is matched with the installation cavity thread through the adjusting thread.

[0018] By adopting the above technical solution, the position of the chuck in the installation cavity can be adjusted by setting the adjusting thread, thereby achieving adjustment of the compression amount of the reset member and further achieving rapid adjustment of the shut-off head pressure.

[0019] Optionally, an adjustment groove is provided on one end of the chuck away from the reset member, and the adjustment groove has a polygonal structure.

[0020] By adopting the above technical solution and utilizing the polygonal structure, the chuck can cooperate with the external tool and rotate quickly in the installation cavity.

[0021] Optionally, the inner wall of the grouting hole and the outer wall of the flow limiting tube are both provided with threads, and the flow limiting tube is detachably screwed into the grouting hole via the threads.

[0022] By adopting the above technical solution, the flow limiting tube can be quickly disassembled and assembled by utilizing the thread.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] The intercepting head in the intercepting mechanism is used to intercept the mud in the sleeve valve tube body, and when the mud pressure in the sleeve valve tube body reaches a certain value, the mud pushes the intercepting head to slide in the installation cavity, and enables the mud to be ejected from the diversion flow hole through the diversion flow hole, thereby realizing the grouting operation, and at the same time, the pressure-adjustable structure of the intercepting head is set, so that when grouting through the sleeve valve tube body, the mud can be ejected from different grouting holes by different pressures, thereby realizing directional grouting operation, which is simple and efficient while also achieving precise grouting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the external structure of a pressure-adjustable directional positioning grouting sleeve valve pipe in this embodiment.

[0026] Figure 2 Schematic diagram of the separation structure of the flow limiting tube and the grouting hole in this embodiment.

[0027] Figure 3 Schematic diagram of the cross-sectional structure of the flow limiting tube in this embodiment.

[0028] Figure 4 Schematic diagram of the structure of the intercepting mechanism in this embodiment.

[0029] Figure 5 Schematic diagram of the slurry guide pipe and chuck structure in this embodiment.

[0030] Description of reference numerals:

[0031] 1. Sleeve valve tube body; 2. Grouting hole; 3. Flow limiting tube; 4. Installation cavity; 5. Cut-off cavity; 6. Cut-off mechanism; 61. Slurry guide tube; 62. Cut-off head; 63. Butt joint; 64. Diversion hole; 65. Sealing disk; 66. Chuck; 67. Reset part; 68. Adjustment thread; 69. Adjustment groove. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a pressure-adjustable directional positioning grouting sleeve valve pipe.

[0034] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] Reference Figure 1 and Figure 2 A pressure-adjustable directional positioning grouting sleeve valve pipe comprises a sleeve valve pipe body 1, a grouting hole 2, a flow limiting pipe 3, an installation cavity 4, a flow interception cavity 5 and a flow interception mechanism 6. A cavity is provided through the center of the sleeve valve pipe body 1, and a grouting hole 2 is provided on the side wall of the sleeve valve pipe body 1. The grouting hole 2 is connected to the cavity of the sleeve valve pipe body 1. A flow limiting pipe 3 is provided in the grouting hole 2. The interior of the flow limiting pipe 3 is provided with an installation cavity 4 and a flow interception cavity 5. The flow interception mechanism 6 for intercepting the slurry is provided in the installation cavity 4. The flow interception head in the flow interception mechanism 6 is used to intercept the slurry. 62 intercepts the mud in the sleeve valve tube body 1, and when the mud pressure in the sleeve valve tube body 1 reaches a certain value, the mud pushes the intercepting head 62 to slide in the installation cavity 4, and enables the mud to be ejected from the diversion hole 64 through the diversion hole 64, thereby realizing the grouting operation, and at the same time, through the setting of the pressure-adjustable structure of the intercepting head 62, when grouting through the sleeve valve tube body 1, the mud can be ejected from different grouting holes 2 by different pressures, realizing directional grouting operation, which is simple and efficient while also achieving precise grouting.

[0036] Reference Figure 3 and Figure 4Specifically, the intercepting mechanism 6 includes a slurry guide tube 61, a shutoff head 62, a docking tube 63, a flow guide hole 64, a sealing disk 65, a chuck 66 and a reset member 67. The docking tube 63 is coaxially fixed between the shutoff head 62 and the slurry guide tube 61. The slurry guide tube 61, the shutoff head 62 and the docking tube 63 form an integral structure that is slidably connected in the installation cavity 4, and the shutoff head 62 abuts at the connection between the shutoff cavity 5 and the installation cavity 4. The flow guide hole 64 is respectively provided on the shutoff head 62 and the docking tube 63, the sealing disk 65 is coaxially fixed on the slurry guide tube 61, the chuck 66 is provided at one end in the installation cavity 4 away from the shutoff cavity 5, the reset member 67 is sleeved on the outside of the slurry guide tube 61, and one end of the reset member 67 abuts against the sealing disk 65, and the other end abuts against the chuck 66, and a circular hole is provided at the center of the chuck 66. The slurry guide tube 61 passes through the circular hole of the chuck 66 and is slidably connected with the chuck 66.

[0037] Regarding the intercepting cavity 5 in the embodiment of the present application, the diameter of the intercepting cavity 5 is smaller than that of the mounting cavity 4, and the intercepting head 62 has a conical structure. The flow guide hole 64 provided on the intercepting head 62 is located in the mounting cavity 4. By utilizing cavity structures of different sizes and combining the intercepting head 62, the internal cavity of the flow limiting tube 3 can be quickly blocked and penetrated.

[0038] The sealing disk 65 is fitted with and slidably connected to the inner wall of the intercepting cavity 5 , and the sealing disk 65 is used to intercept the mud, so that the mud flows into the slurry guide pipe 61 from the diversion hole 64 of the docking pipe 63 and is ejected through the slurry guide pipe 61 .

[0039] Reference Figure 5 Specifically, in the embodiment of the present application, regarding the chuck 66, an adjusting thread 68 is provided on the outer wall of the chuck 66, and a docking thread is provided in the installation cavity 4. The chuck 66 cooperates with the thread of the installation cavity 4 through the adjusting thread 68, and an adjusting groove 69 is provided on the end of the chuck 66 away from the reset member 67, and the adjusting groove 69 has a polygonal structure.

[0040] In the embodiment of the present application, the position of the chuck 66 in the installation cavity 4 can be adjusted by setting the adjustment thread 68, thereby realizing the adjustment of the compression amount of the reset member 67, thereby realizing the rapid adjustment of the pressure of the shut-off head 62, and utilizing the polygonal structure to enable the chuck 66 to cooperate with the external tool and rotate quickly in the installation cavity 4.

[0041] The inner wall of the grouting hole 2 and the outer wall of the flow limiting tube 3 are both provided with threads. The flow limiting tube 3 is detachably screwed into the grouting hole 2 via the threads, and the flow limiting tube 3 can be quickly disassembled and assembled using the threads.

[0042] The implementation principle of a pressure-adjustable directional positioning grouting sleeve valve tube in the embodiment of the present application is as follows: first, the flow limiting tube 3 is set in the grouting hole 2, and then the pressure in the cut-off mechanism 6 is adjusted according to the actual grouting needs. During the adjustment, the chuck 66 is rotated to make it threadedly linked in the installation cavity 4, and then the compression amount of the reset member 67 is adjusted to adjust the pressure of the cut-off head 62, and then grouting can be started. When the slurry pressure reaches a certain value, the mud pushes the cut-off head 62 to separate from the cut-off cavity 5. At this time, the mud flows into the slurry guide pipe 61 through the diversion hole 64 and is ejected through the slurry guide pipe 61. After the grouting is completed, the cut-off head 62 is in contact with the cut-off cavity 5 through the elastic force of the reset member 67 to intercept the mud.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A pressure-adjustable directional positioning grouting sleeve valve pipe, characterized in that: include: A sleeve valve tube body (1), wherein a cavity is provided through the center of the sleeve valve tube body (1), and a grouting hole (2) is provided on the side wall of the sleeve valve tube body (1), wherein the grouting hole (2) is communicated with the cavity of the sleeve valve tube body (1), a flow limiting tube (3) is provided in the grouting hole (2), and an installation cavity (4) and a flow intercepting cavity (5) are provided through the interior of the flow limiting tube (3); A cut-off mechanism (6) is used for cutting off slurry, and the cut-off mechanism (6) is arranged in the installation cavity (4), and the cut-off mechanism (6) comprises a slurry guide pipe (61), a cut-off head (62), a butt joint pipe (63) and a flow guide hole (64), wherein the butt joint pipe (63) is coaxially fixed between the cut-off head (62) and the slurry guide pipe (61), and the integral structure composed of the slurry guide pipe (61), the cut-off head (62) and the butt joint pipe (63) is slidably connected in the installation cavity (4), and the cut-off head (62) abuts against the connection between the cut-off cavity (5) and the installation cavity (4), and the flow guide hole (64) is respectively provided on the cut-off head (62) and the butt joint pipe (63).

2. A pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 1, characterized in that: The diameter of the intercepting cavity (5) is smaller than that of the mounting cavity (4), and the intercepting head (62) has a conical structure. The flow guide hole (64) provided on the intercepting head (62) is located in the mounting cavity (4).

3. A pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 1, characterized in that: The intercepting mechanism (6) further comprises a sealing disc (65), a chuck (66) and a reset member (67), wherein the sealing disc (65) is coaxially fixed on the slurry guide tube (61), the chuck (66) is arranged in the installation cavity (4) at one end away from the intercepting cavity (5), the reset member (67) is sleeved on the outside of the slurry guide tube (61), and one end of the reset member (67) abuts against the sealing disc (65), and the other end abuts against the chuck (66), and a circular hole is provided at the center of the chuck (66), and the slurry guide tube (61) passes through the circular hole of the chuck (66) and is slidably connected to the chuck (66).

4. A pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 3, characterized in that: The sealing disc (65) is in contact with the inner wall of the intercepting cavity (5) and is slidably connected thereto.

5. The pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 3 is characterized in that: An adjusting thread (68) is provided on the outer wall of the chuck (66), and a docking thread is provided in the installation cavity (4). The chuck (66) is threadably matched with the installation cavity (4) via the adjusting thread (68).

6. The pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 3, characterized in that: An adjustment groove (69) is provided on one end of the chuck (66) away from the reset member (67), and the adjustment groove (69) has a polygonal structure.

7. The pressure-adjustable directional positioning grouting sleeve valve pipe according to claim 1, characterized in that: The inner wall of the grouting hole (2) and the outer wall of the flow limiting tube (3) are both provided with threads, and the flow limiting tube (3) is detachably screwed into the grouting hole (2) via the threads.

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