Adjustable pressure type automatic grouting device and working method

Abstract

The present invention discloses an adjustable pressure automatic grouting device and a working method, which relate to the technical field of building construction. The grouting device includes a grouting inspection funnel, which is connected to a pressure regulating hose, and the other end of the pressure regulating hose is connected to a grouting hole arranged on a shear wall; the end of the pressure regulating hose is provided with an interface end which is plugged into the grouting hole, and the interface end is provided with an annular sealing groove, in which an elastic sealing ring is embedded, wherein a plurality of groups of through holes communicating with the interior are provided on the wall of the annular sealing groove in a circumferential array; a control valve is provided on the side of the pressure regulating hose towards the interface end, and during the process of slurry being transported in the pressure regulating hose, the slurry can enter the annular sealing groove through the through hole, and the elastic sealing ring is squeezed and expanded under the action of the slurry pressure, so that the outer ring surface of the elastic sealing ring can abut against the wall of the grouting hole, thereby achieving a sealing effect.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to an adjustable pressure automatic grouting device and a working method. Background Art

[0002] In the construction of prefabricated concrete structures, the continuous grouting method of connected cavities is commonly used for the construction of grouting sleeve shear walls. This construction method is relatively simple to operate and has controllable quality when applied to frame columns. However, when used for shear wall construction, the operation is more difficult and "intrinsic safety" cannot be guaranteed.

[0003] When the connecting cavity is damaged, leakage will occur. When the leakage point appears on the outside of the exterior wall, it is extremely difficult to find. After the concrete surface absorbs water, the volume of the grouting material may shrink. If the expansion rate of the grouting material mixture is not enough to compensate for the shrinkage, the grouting will be loose. If the grouting is replenished in time, this quality hazard can be effectively eliminated. Especially when pulling out the grouting gun, the grouting material mixture is very likely to fall back, resulting in incomplete and loose grouting. Once the above quality problems occur, they cannot be remedied if they are not discovered in time.

[0004] In the prior art, the patent document with the announcement number CN109653506A discloses an adjustable pressure automatic grouting device, and simultaneously discloses an interface pipe, a control valve, a pressure regulating hose, a grouting inspection funnel and a bracket, the interface pipe, the control valve and the pressure regulating hose, one end of the interface pipe is connected to the pressure regulating hose by a thread, and the other end of the interface pipe is sleeved with the inside of the interface pipe by a snap; however, in actual application, when the interface pipe is connected to the grouting hole, the interface pipe is connected to the inside of the grouting hole on the sleeve through the thread of the outer wall of the first ring rib. Although the threaded connection method has a certain stability, the operator needs to manually screw it during the connection process, and the process is relatively cumbersome. At the same time, the setting of the spiral structure will reduce the sealing of the connection between the interface pipe and the grouting hole, and some slurry will seep out from the spiral structure under high pressure. Summary of the Invention

[0005] The purpose of the present invention is to provide an adjustable pressure automatic grouting device and a working method to solve the following technical problems:

[0006] During the connection process, the operator needs to manually screw it, which is a cumbersome process. At the same time, the setting of the spiral structure will reduce the sealing of the connection between the interface pipe and the grouting hole, and some slurry will seep out from the spiral structure under high pressure.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] An adjustable pressure automatic grouting device includes a grouting inspection funnel connected to a pressure regulating hose, the other end of which is connected to a grouting hole arranged on a shear wall;

[0009] The end of the pressure regulating hose is provided with an interface end connected to the grouting hole, the interface end is provided with an annular sealing groove, an elastic sealing ring is embedded in the annular sealing groove, wherein the annular sealing groove wall is provided with a plurality of groups of through holes communicating with the interior in a circumferential array;

[0010] A control valve is arranged on one side of the pressure regulating hose toward the interface end.

[0011] Preferably, the grouting device further comprises a base, an L-shaped bracket is arranged on the base, the L-shaped bracket can be slidably arranged on the base, and the grouting inspection funnel is arranged on one side of the L-shaped bracket.

[0012] Preferably, two sets of guide grooves are provided on the base relative to each other, a U-shaped bracket is provided at the bottom of the L-shaped bracket, and the U-shaped bracket is fixedly connected to a guide seat slidably arranged in the guide groove.

[0013] Preferably, a rack plate is arranged between the guide grooves on both sides, a through slot is opened on the U-shaped bracket, a first gear is rotatably arranged in the through slot, a first motor is provided on one side of the U-shaped bracket, and the output end of the first motor is fixedly connected to a second gear meshing with the first gear.

[0014] Preferably, a limiting plate is provided on one side of the L-shaped bracket, a positioning box is slidably provided on the limiting plate, and the positioning box is provided with a positioning hole for passing the pressure regulating hose.

[0015] Preferably, positioning plates are relatively slidably arranged in the positioning box, and the positioning plates are respectively fixedly connected to positioning rods slidably inserted on the positioning box. The positioning rods are also provided with reset springs connected to the positioning plates.

[0016] Preferably, a driving box is provided at the bottom of the limiting plate, and a first screw is rotatably arranged in the driving box. The end of the first screw is fixedly connected to the output end of the second motor arranged outside the driving box, and a first nut is spirally sleeved on the first screw and fixedly connected to the positioning box.

[0017] Preferably, a second screw rod is rotatably arranged on one side of the L-shaped bracket, and the second screw rod is fixedly connected to the output end of the third motor arranged on the L-shaped bracket. A second nut is spirally sleeved on the second screw rod, wherein the second nut is fixedly connected to the support plate arranged at the bottom of the grouting inspection funnel.

[0018] A working method of an adjustable pressure automatic grouting device comprises the following steps:

[0019] Step 1: Connect one end of the pressure regulating hose to the grouting inspection funnel, and add the prepared grouting material into the grouting inspection funnel;

[0020] Step 2: Connect the interface end of the pressure regulating hose to the grouting hole by plugging, then open the control valve and observe the liquid level in the grouting inspection funnel;

[0021] Step 3: Close the control valve, raise the height of the grouting inspection funnel to 0.1m, and observe the liquid level in the grouting inspection funnel;

[0022] Step 4: Close the control valve, raise the height of the grouting inspection funnel to 0.5-1m, and observe the liquid level in the grouting inspection funnel.

[0023] Beneficial effects of the present invention:

[0024] (1) During the transportation of the grouting material in the pressure regulating hose, the grouting material can enter the annular sealing groove through the through hole. Under the action of the slurry pressure, the elastic sealing ring is squeezed and expanded, thereby making the outer ring surface of the elastic sealing ring contact with the wall of the grouting hole, thereby achieving a sealing effect and effectively preventing the slurry from leaking out of the connection gap between the interface end and the grouting hole;

[0025] (2) The present invention drives the first screw to rotate by the second motor. During the movement of the first nut on the first screw, the clamped and positioned regulating pressure hose is driven to move toward the grouting hole so that the interface end is plugged and positioned with the grouting hole. Manual plugging by the operator is not required, which is more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the structure of an adjustable pressure automatic grouting device of the present invention. Figure 1 ;

[0028] Figure 2 This is a schematic diagram of the structure of an adjustable pressure automatic grouting device of the present invention. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of an adjustable pressure automatic grouting device of the present invention. Figure 3 ;

[0030] Figure 4 This is a schematic diagram of the structure of an adjustable pressure automatic grouting device of the present invention. Figure 4 ;

[0031] Figure 5 This is a schematic diagram of the structure of an adjustable pressure automatic grouting device of the present invention. Figure 5 ;

[0032] Figure 6 It is a structural schematic diagram of a positioning box in an adjustable pressure automatic grouting device of the present invention;

[0033] Figure 7 It is a structural schematic diagram of an elastic sealing ring in an adjustable pressure automatic grouting device of the present invention;

[0034] Figure 8 It is a structural schematic diagram of a limit plate in an adjustable pressure automatic grouting device of the present invention.

[0035] In the figure: 1. shear wall; 2. base; 3. L-shaped bracket; 4. U-shaped bracket; 5. grouting inspection funnel; 6. positioning box; 7. driving box; 101. grouting hole; 201. guide groove; 202. rack plate; 301. third motor; 302. support plate; 303. slide groove; 304. limit plate; 305. second screw; 306. second nut; 307. driving cylinder; 401. through groove; 402. first gear; 403. second gear; 404. first motor; 501. pressure regulating hose; 502. support plate; 503. elastic sealing ring; 504. annular sealing groove; 505. through hole; 601. positioning hole; 602. positioning rod; 603. positioning plate; 604. reset spring; 605. control valve; 701. second motor; 702. first screw; 703. first nut. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0037] Example 1

[0038] See also Figure 1-Figure 2 As shown, the present invention is an adjustable pressure automatic grouting device, comprising a grouting inspection funnel 5, the grouting inspection funnel 5 is connected to a pressure regulating hose 501, and the other end of the pressure regulating hose 501 is connected to a grouting hole 101 arranged on the shear wall 1;

[0039] The end of the pressure regulating hose 501 is provided with an interface end for plugging and connecting with the grouting hole 101. The interface end is provided with an annular sealing groove 504. An elastic sealing ring 503 is embedded in the annular sealing groove 504. The annular sealing groove 504 has a plurality of groups of through holes 505 in a circumferential array on the groove wall thereof.

[0040] The pressure regulating hose 501 is provided with a control valve 605 on the side facing the interface end. It can be explained that before grouting, one end of the pressure regulating hose 501 is first connected to the grouting inspection funnel 5, and the prepared grouting material is added to the grouting inspection funnel 5. Then, the interface end of the pressure regulating hose 501 is connected to the grouting hole 101 by plugging, and then the control valve 605 is opened, so that the grouting material in the grouting inspection funnel 5 can be transported to the grouting hole 101 under the action of gravity. The operator can observe the grouting material by observing the grouting hole 101. The changes in the liquid level in the grouting inspection funnel 5 can be observed to determine whether the shear wall 1 is leaking. At the same time, when the grouting material is being transported in the pressure regulating hose 501, the slurry can enter the annular sealing groove 504 through the through hole 505. Under the action of the slurry pressure, the elastic sealing ring 503 is squeezed and expanded, thereby allowing the outer ring surface of the elastic sealing ring 503 to abut against the wall of the grouting hole 101, achieving a sealing effect, and effectively preventing the slurry from seeping out from the connection gap between the interface end and the grouting hole 101.

[0041] Example 2

[0042] Based on Example 1, please refer to Figure 3-Figure 4 The grouting device also includes a base 2, on which an L-shaped bracket 3 is arranged. The L-shaped bracket 3 can be slidably arranged on the base 2, and a grouting inspection funnel 5 is arranged on one side of the L-shaped bracket 3. It can be explained that when grouting, the base 2 is placed 0.5-1m away from one side of the shear wall. By arranging the slidable L-shaped bracket 3, when grouting the grouting holes at different horizontal positions on the shear wall 1, the sliding L-shaped bracket 3 is adjusted to adjust the position so that the interface end corresponds to the position of the grouting hole 101;

[0043] As a further solution of this embodiment, two sets of guide grooves 201 are formed on the base 2, and a U-shaped bracket 4 is provided at the bottom of the L-shaped bracket 3. The U-shaped bracket 4 is fixedly connected to a guide seat slidably arranged in the guide groove 201. Specifically, this embodiment limits the L-shaped bracket 3 by arranging the guide grooves 201 and the guide seat, so that it has higher stability during the sliding process.

[0044] For further information, see Figure 5-Figure 6 A rack plate 202 is arranged between the guide grooves 201 on both sides, a through slot 401 is opened on the U-shaped bracket 4, and a first gear 402 is rotatably arranged in the through slot 401. A first motor 404 is provided on one side of the U-shaped bracket 4, and the output end of the first motor 404 is fixedly connected to a second gear 403 meshing with the first gear 402; specifically, when the position of the L-shaped bracket 3 is adjusted, the first motor 404 is started to drive the second gear 403 to rotate, and the second gear 403 synchronously drives the first gear 402 to rotate. During the rotation process, the first gear 402 drives the L-shaped bracket 3 to move by meshing with the rack plate 202;

[0045] A limiting plate 304 is arranged on one side of the L-shaped bracket 3, and a positioning box 6 is slidably arranged on the limiting plate 304. The positioning box 6 is provided with a positioning hole 601 for passing the pressure regulating hose 501;

[0046] Among them, the positioning plates 603 are relatively slidably arranged in the positioning box 6, and the positioning plates 603 are respectively fixedly connected to the positioning rods 602 slidably inserted on the positioning box 6, and the positioning rods 602 are further provided with return springs 604 connected to the positioning plates 603; it can be explained that the positioning rods 602 are first pulled toward both sides to separate the positioning plates 603 on both sides. At this time, the return springs 604 on both sides are stretched to generate elastic force, and after the regulating pressure hose 501 is passed through the positioning hole 601, the positioning rods 602 are loosened, and under the elastic force of the return springs 604, the positioning rods 602 and the positioning plates 603 are driven to reset to achieve the positioning and fixation of the regulating pressure hose 501;

[0047] See also Figure 7-Figure 8 The first nut 703 is fixedly connected to the positioning box 6 by a spiral sleeve on the first screw 702, and the first nut 703 passes through the slide groove 303 provided on the limiting plate 304 and is fixedly connected to the positioning box 6; it can be explained that after the horizontal position of the L-shaped bracket 3 is determined, the second motor 701 is started to drive the first screw 702 to rotate. During the movement of the first nut 703 on the first screw 702, the clamped and positioned regulating pressure hose 501 is driven to move toward the grouting hole 101, so that the interface end and the grouting hole 101 are plugged and positioned, without the need for manual plugging by the operator, and higher efficiency;

[0048] A second screw 305 is rotatably arranged on one side of the L-shaped bracket 3, and the second screw 305 is fixedly connected to the output end of the third motor 301 arranged on the L-shaped bracket 3, and a second nut 306 is spirally sleeved on the second screw 305, wherein the second nut 306 is fixedly connected to the support plate 302 arranged at the bottom of the grouting inspection funnel 5; it can be explained that when the height of the grouting inspection funnel 5 is adjusted, the third motor 301 is started to drive the second screw 305 to rotate, and the second nut 306 drives the support plate 302 to rise and fall during the movement on the second screw 305, thereby realizing pressure adjustment of the grouting inspection funnel 5.

[0049] In addition, a driving cylinder 307 is arranged on one side of the U-shaped bracket 4, and the driving end of the driving cylinder 307 is fixedly connected to the limit plate 304. Specifically, the limit plate 304 is driven up and down by the driving cylinder 307 to adjust the height, so as to adjust the pressure hose 501 to correspond to the grouting holes 101 at different heights.

[0050] Example 3

[0051] A working method of an adjustable pressure automatic grouting device comprises the following steps:

[0052] Step 1: Connect one end of the pressure regulating hose 501 to the grouting inspection funnel 5, and add the prepared grouting material into the grouting inspection funnel 5;

[0053] Step 2: Connect the interface end of the pressure regulating hose 501 to the grouting hole 101 by plugging, then open the control valve 605 and observe the liquid level in the grouting inspection funnel 5;

[0054] Step 3: Close the control valve 605, raise the height of the grouting inspection funnel 5 to 0.1m, and observe the liquid level in the grouting inspection funnel 5;

[0055] Step 4: Close the control valve 605, raise the height of the grouting inspection funnel 5 to 0.5-1m, and observe the liquid level in the grouting inspection funnel 5.

[0056] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as limiting the present invention. In addition, "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0058] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. An adjustable pressure automatic grouting device, comprising a grouting inspection funnel (5), the grouting inspection funnel (5) being connected to a pressure regulating hose (501), the other end of the pressure regulating hose (501) being connected to a grouting hole (101) arranged on a shear wall (1); It is characterized by: The end of the pressure regulating hose (501) is provided with an interface end connected to the grouting hole (101), and the interface end is provided with an annular sealing groove (504), and an elastic sealing ring (503) is embedded in the annular sealing groove (504); The annular sealing groove (504) has a plurality of through holes (505) in a circumferential array on its wall, which are connected to the interior. A control valve (605) is arranged on one side of the pressure regulating hose (501) toward the interface end; The grouting device further comprises a base (2), an L-shaped bracket (3) is arranged on the base (2), the L-shaped bracket (3) is slidably arranged on the base (2), and a grouting inspection funnel (5) is arranged on one side of the L-shaped bracket (3); a limiting plate (304) is arranged on one side of the L-shaped bracket (3), a positioning box (6) is slidably arranged on the limiting plate (304), and the positioning box (6) is provided with a positioning hole (601) for passing the pressure regulating hose (501); The positioning box (6) has positioning plates (603) arranged relatively slidably. The positioning plates (603) are fixedly connected to positioning rods (602) slidably plugged into the positioning box (6). The positioning rods (602) are also provided with return springs (604) connected to the positioning plates (603). A driving box (7) is provided at the bottom of the limiting plate (304), a first screw (702) is rotatably arranged in the driving box (7), an end of the first screw (702) is fixedly connected to the output end of a second motor (701) arranged outside the driving box (7), and a first nut (703) is spirally sleeved on the first screw (702) and fixedly connected to the positioning box (6).

2. The adjustable pressure automatic grouting device according to claim 1, characterized in that: Two sets of guide grooves (201) are provided on the base (2) in opposite directions. A U-shaped bracket (4) is provided at the bottom of the L-shaped bracket (3). The U-shaped bracket (4) is fixedly connected to a guide seat slidably arranged in the guide groove (201).

3. The adjustable pressure automatic grouting device according to claim 2, characterized in that: A rack plate (202) is arranged between the guide grooves (201) on both sides, a through groove (401) is provided on the U-shaped bracket (4), a first gear (402) is rotatably arranged in the through groove (401), a first motor (404) is provided on one side of the U-shaped bracket (4), and a second gear (403) meshing with the first gear (402) is fixedly connected to the output end of the first motor (404).

4. The adjustable pressure automatic grouting device according to claim 1, characterized in that: A second screw rod (305) is rotatably arranged on one side of the L-shaped bracket (3), the second screw rod (305) being fixedly connected to the output end of a third motor (301) arranged on the L-shaped bracket (3), and a second nut (306) is spirally sleeved on the second screw rod (305), wherein the second nut (306) is fixedly connected to a support plate (302) arranged at the bottom of the grouting inspection funnel (5).

5. A method for operating the adjustable pressure automatic grouting device according to claim 4, characterized in that: The steps include: Step 1: Connect one end of the pressure regulating hose (501) to the grouting inspection funnel (5), and add the prepared grouting material into the grouting inspection funnel (5); Step 2: Connect the interface end of the pressure regulating hose (501) to the grouting hole (101) by plugging, then open the control valve (605) and observe the liquid level of the grouting inspection funnel (5); Step 3: Close the control valve (605), raise the height of the grouting inspection funnel (5) to 0.1m, and observe the liquid level of the grouting inspection funnel (5); Step 4: Close the control valve (605), raise the height of the grouting inspection funnel (5) to 0.5-1m, and observe the liquid level of the grouting inspection funnel (5).

Images