Anti-disengaging multi-angle grouting device for tunnel secondary lining vault

Abstract

The utility model belongs to the technical field of tunnel vault grouting, and provides a tunnel secondary lining vault anti-disengaging multi-angle grouting device which comprises a ball block and a plugging plate, the ball block is located under a grouting hole in the middle of a formwork, the ball block is clamped between a pair of clamping plates and can rotate in any direction, a grouting pipe is arranged in the middle of the ball block in a sleeved mode, and the plugging plate is arranged in the grouting pipe. One end of the grouting pipe extends to a grouting area on the outer side of the formwork, the other end of the grouting pipe extends to the inner side of the formwork, the length of the portion, extending into the grouting area, of the grouting pipe can be adjusted, the two clamping plates are connected with the formwork, a gap is reserved between each clamping plate and the formwork, the tops of the two clamping plates jointly form an annular notch, and part of the ball block is exposed in the annular notch. According to the grouting device, multi-angle grouting operation can be achieved, the grout supplementing width is wide, the grouting device can extend into a specified void area for grout supplementing, the problem that defects such as cavities and gaps are prone to being generated in a traditional grouting mode is effectively solved, and then the labor intensity of workers is relieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel vault grouting, and in particular relates to a multi-angle grouting device for preventing voiding of a tunnel secondary lining vault. Background Art

[0002] At present, when grouting the arch crown of the traditional tunnel secondary lining, the concrete mortar gradually rises from the two sides of the arch formwork to the top, and finally the arch crown part sprays the mortar upward through the grouting holes on the top of the formwork until it is full. This bottom-up spraying method has a narrow grouting width and cannot radially extend into the designated void area for grouting. In the end, defects such as cavities and gaps are easily generated, which increases the labor intensity of workers.

[0003] Therefore, it is necessary to provide an improved technical solution to the above-mentioned deficiencies in the prior art. Utility Model Content

[0004] The utility model aims to overcome the problem that the traditional vault grouting method is prone to defects such as gaps due to its narrow grouting width, and provides a multi-angle grouting device for preventing the vault of the secondary lining of a tunnel from falling out.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A multi-angle grouting device for preventing degassing of a secondary lining vault of a tunnel comprises: a ball block and a sealing plate, the ball block being located directly below the grouting hole in the middle of the template, the ball block being clamped by a pair of splints, and the ball block being rotatable in any direction, a grouting pipe being sleeved in the middle of the ball block, one end of the grouting pipe extending to the grouting area outside the template, and the other end extending to the inside of the template, the length of the grouting pipe extending into the grouting area being adjustable, the two splints being connected to the template and a space being reserved between the template, and the tops of the two splints jointly forming an annular notch, in which part of the ball block is exposed; the sealing plate being horizontally arranged between the splint and the template, one end plate surface of the sealing plate being provided with a through hole corresponding to the grouting hole, the sealing plate being displaced along the length direction of the template so that the other end plate surface of the sealing plate is moved to the bottom of the grouting hole to seal it.

[0007] In the tunnel secondary lining arch anti-cavitation multi-angle grouting device as described above, preferably, one end of the grouting pipe for slurry inlet is provided with an external thread so that the grouting pipe and the ball block thread can be fitted together.

[0008] Preferably, the middle portions of the two clamping plates are each provided with an inwardly recessed semicircular notch to match the outer shape of the ball block.

[0009] Preferably, the end of the clamping plate is provided with an ear plate protruding in the width direction of the template;

[0010] A hanging plate is protruding from the bottom of the template, and the ear plates on the same side of the two clamping plates are fastened together through the hanging plate.

[0011] Preferably, a push plate extends downward from one end of the blocking plate.

[0012] Preferably, a push rod is connected to a side of the push plate away from the clamping plate;

[0013] The push rod is driven by a cylinder.

[0014] Preferably, when the through hole is directly opposite to the grouting hole, the distance between the push plate and the clamping plate is greater than the overall length of the two clamping plates.

[0015] Preferably, the height of the ball block does not exceed the via hole.

[0016] Preferably, the via hole is not smaller than the annular notch.

[0017] Preferably, the through hole is no larger than the grouting hole.

[0018] Beneficial effects: The utility model can realize multi-angle grouting operation, has a wide grouting width, and can be extended into the designated depleted area for grouting, effectively solving the problem of defects such as cavities and gaps easily generated by traditional grouting methods, thereby reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of this application are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] Figure 1 This is a top perspective view of the present invention in conjunction with the template;

[0021] Figure 2 This is a bottom perspective view of the present invention in conjunction with the template;

[0022] Figure 3 It is an overall schematic diagram of the utility model;

[0023] Figure 4 This is an overall schematic diagram of the plywood structure of the present utility model;

[0024] Figure 5 This is a schematic diagram of the coordination between the ball block and the grouting pipe structure of the utility model.

[0025] In the figure: 1. ball block; 2. splint; 3. grouting pipe; 4. annular notch; 5. sealing plate; 6. through hole; 7. semicircular notch; 8. ear plate; 9. hanging plate; 10. push plate; 11. push rod; 12. cylinder. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of 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 are within the scope of protection of the present invention.

[0027] In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present invention can be combined with each other.

[0029] Embodiment: This embodiment aims to provide a multi-angle grouting device for preventing debulking of the secondary lining vault of a tunnel. Its main function is to realize multi-angle grouting operations, with a wide grouting range, and can directly extend into the debulking area for grouting, thereby effectively preventing debulking.

[0030] Reference Figure 1-5 , including: a ball block 1 and a blocking plate 5, the ball block 1 is located just below the grouting hole in the middle of the arched formwork, the ball block 1 is sandwiched between a pair of plywood 2, and the ball block 1 can rotate in any direction, the two plywood 2 are connected to the formwork and a gap is reserved between the formwork, and the tops of the two plywood 2 jointly form an annular notch 4, part of the ball block 1 is exposed in the annular notch 4, specifically, the end of the plywood 2 protrudes with an ear plate 8 in the width direction of the formwork, and a hanging plate 9 is protruded below the formwork, and the ear plates 8 on the same side of the two plywood 2 are fastened by the hanging plate 9 Together, at the same time, the two plywood 2 are also stuck together, and the middle parts of the two plywood 2 are provided with a semicircular notch 7 recessed inward to match the shape of the ball block 1; the middle part of the ball block 1 is provided with a grouting pipe 3, one end of the grouting pipe 3 extends to the grouting area outside the template, and the other end extends to the inside of the template, and the length of the grouting pipe 3 extending into the grouting area can be adjusted, wherein the end of the grouting pipe 3 for slurry inlet is provided with an external thread, so that the grouting pipe 3 and the ball block 1 are threadedly fitted, and the grouting pipe 3 can be adjusted by rotating the grouting pipe 3 to extend the length of the slurry outlet end into the grouting area.

[0031] Reference Figure 1-3 The blocking plate 5 is horizontally arranged between the splint 2 and the template. The length direction of the blocking plate 5 is consistent with the length direction of the arch template. The front end of the blocking plate 5 is provided with a through hole 6 corresponding to the grouting hole. The through hole 6 is not larger than the grouting hole and not smaller than the annular notch 4. The rear end of the blocking plate 5 extends downward with a push plate 10. The side of the push plate 10 away from the splint 2, that is, the rear plate surface, is connected with a push rod 11. The front end of the push rod 11 is connected to the rear plate surface of the push plate 10. The two are fixed or hinged. The rear end of the push rod 11 is connected to the rear plate surface of the push plate 10 by the cylinder 1. 2 is driven, and the rear end of the cylinder 12 is hung below the arch template. A hanging plate 9 corresponding to the rear end of the cylinder 12 is welded below the arch template, and the rear end of the cylinder 12 is connected to the hanging plate 9. The two are connected in a fixed or hinged manner. The cylinder 12 drives the push rod 11 to apply a horizontal thrust to the push plate 10. When the through hole 6 is directly opposite to the grouting hole, the distance between the push plate 10 and the clamping plate 2 is greater than the overall length of the two clamping plates 2, so that the end plate surface of the blocking plate 5 without the through hole 6 can block the grouting hole.

[0032] In this embodiment, the height of the ball block 1 does not exceed the through hole 6 so as not to hinder the horizontal displacement of the sealing plate 5 to seal the grouting hole. If necessary, rubber sealing pads can be adhered to the upper and lower surfaces of the sealing plate 5 to reduce the slurry leakage from the gap.

[0033] During actual use, the grouting pipe is connected to the grouting inlet end of the grouting pipe 3 to deliver slurry to the grouting area. Finally, the angle of the slurry outlet end can be changed by swinging the grouting pipe 3, and the length of the grouting pipe 3 extending into the grouting area can be adjusted by rotating the grouting pipe 3, so as to directly extend into the depleted area for grouting to prevent depletion. After the grouting is completed, the grouting pipe 3 extending into the grouting area is retracted, and then the sealing plate 5 is controlled to move to seal the grouting hole to complete the grouting operation.

[0034] This embodiment can realize multi-angle grouting operation, and the grouting width is wide, and it can be extended into the designated hollow area for grouting, which effectively solves the problem that traditional grouting methods are prone to defects such as cavities and gaps, thereby reducing the labor intensity of workers.

[0035] It will be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A multi-angle grouting device for preventing the secondary lining vault from falling out of a tunnel, characterized in that: include: A ball block is located directly below the grouting hole in the middle of the template. The ball block is clamped in the middle by a pair of clamping plates, and the ball block can rotate in any direction. A grouting pipe is sleeved in the middle of the ball block, one end of the grouting pipe extends to the grouting area outside the template, and the other end extends to the inside of the template. The length of the grouting pipe extending into the grouting area is adjustable. The two clamping plates are connected to the template and a gap is reserved between them. The tops of the two clamping plates jointly form an annular notch, and part of the ball block is exposed in the annular notch. The blocking plate is horizontally arranged between the clamping plate and the template. One end plate surface of the blocking plate is provided with a through hole corresponding to the grouting hole. The blocking plate is displaced along the length direction of the template so that the other end plate surface of the blocking plate is moved to the bottom of the grouting hole to block it.

2. The multi-angle grouting device for preventing the secondary lining vault from de-cavitation according to claim 1 is characterized in that: One end of the grouting pipe for slurry inlet is provided with an external thread so that the grouting pipe and the ball block thread can be fitted together.

3. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 1 is characterized in that: The middle parts of the two clamping plates are both provided with an inwardly recessed semicircular notch to match the shape of the ball block.

4. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 1 is characterized in that: The end of the clamping plate is provided with an ear plate protruding in the width direction of the template; A hanging plate is protruding from the bottom of the template, and the ear plates on the same side of the two clamping plates are fastened together through the hanging plate.

5. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 1 is characterized in that: A push plate is extended downward from one end of the blocking plate.

6. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 5 is characterized in that: A push rod is connected to a side of the push plate away from the clamping plate; The push rod is driven by a cylinder.

7. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 6 is characterized in that: When the through hole is directly opposite to the grouting hole, the distance between the push plate and the clamping plate is greater than the overall length of the two clamping plates.

8. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 1 is characterized in that: The height of the ball block does not exceed that of the via hole.

9. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 1 is characterized in that: The via hole is not smaller than the annular notch.

10. The multi-angle grouting device for preventing voiding of the secondary lining vault of a tunnel according to claim 9, characterized in that: The through hole is no larger than the grouting hole.

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