Grouting device

Abstract

The present invention provides a grouting device, which includes a grout spraying chamber, a limiting sleeve and a grout suction chamber; a grout spraying check valve is arranged at the front end of the grout spraying chamber, and a limiting plate is arranged at the rear end; a piston is arranged at the front end of the grout suction chamber, and a grout suction check valve is arranged at the rear end; the front end of the limiting sleeve is hermetically connected to the grout spraying chamber, and the rear end of the limiting sleeve is hermetically and movably connected to the grout suction chamber; the relative movement between the limiting sleeve and the piston causes a pressure difference between the inside and the outside of the grouting device; this grouting device can complete the grouting operation for the tie bolts holes more efficiently and quickly, which is convenient, fast, cost-saving, time-saving and labor-saving, reduces subsequent rework, speeds up the construction progress, and in particular can very effectively avoid the situations of high labor and mechanical costs and unsafe grouting in conventional grouting operations.

Description

Technical Field

[0001] The present invention belongs to the technical field, and particularly relates to a grouting device. Background Art

[0002] With the rapid development of the construction industry, there are more and more high-rise and super-high-rise buildings, and large-area shear walls and large-section columns are frequently used, resulting in more and more tie bolt holes. High-rise buildings usually use all-steel large curtain walls and aluminum alloy templates as metal templates. When using metal templates for concrete pouring, after the pouring is completed, since the inner and outer templates need to be fixed with tie bolts, due to design reasons, the tie bolt holes of the metal templates are relatively large, and in the later processing process, the tie bolt holes need to be grouted and blocked.

[0003] In the past tie bolt hole grouting technology, mainly plunger-type manual tools or pressure grouting equipment were used for mortar perfusion. Using plunger-type manual tools for plugging has a slow construction speed and it is difficult to guarantee the construction quality; the grouting method of pressure grouting equipment requires a lot of labor, and high pressure is generated during the operation process, which has certain risks, and has high requirements for the working performance of the mortar and strict technical requirements.

[0004] Therefore, it is necessary to invent a grouting device suitable for tie bolts, which has high efficiency and safety at the same time. Summary of the Invention

[0005] The present invention provides a grouting device, which is used to solve the problems of slow construction speed, high labor consumption, and high pressure generated during the operation process in the grouting process of tie bolt holes in the prior art.

[0006] The grouting device provided by the present invention includes a grouting chamber, a limiting sleeve and a slurry suction chamber;

[0007] A limiting plate is arranged at the front end of the grouting chamber, and a grouting one-way valve is arranged at the rear end;

[0008] A piston is arranged at the front end of the slurry suction chamber, and a slurry suction one-way valve is arranged at the rear end;

[0009] The front end of the limiting sleeve is hermetically connected to the grouting chamber, and the rear end of the limiting sleeve is hermetically and movably connected to the slurry suction chamber; the relative movement of the limiting sleeve and the piston causes a pressure difference between the inside and the outside of the grouting device.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: The grouting device including a grouting chamber, a limiting sleeve and a slurry suction chamber is used to grout and seal the tie bolts. Through the relative movement of the limiting sleeve and the piston, a pressure difference is generated between the inside and the outside of the slurry suction chamber. After the slurry is sucked into the slurry suction chamber by the suction one-way valve, the relative movement of the limiting sleeve and the piston makes the pressure inside the slurry suction chamber greater than the pressure inside the grouting chamber, and the slurry in the slurry suction chamber is injected into the grouting chamber by the suction one-way valve and the grouting one-way valve to complete the grouting; this grouting device can complete the grouting operation of the tie bolt holes more efficiently and quickly, which is convenient and fast, saves costs, saves time and effort, reduces subsequent rework, speeds up the construction progress, and can especially effectively avoid the situation of high labor and mechanical costs and unsafe grouting in conventional grouting operations.

[0011] Further, the grouting one-way valve includes a spring, a rubber protective sleeve, a rubber plugging cap, a spring sleeve and a fixed bottom plate; the upper part of the rubber protective sleeve is hermetically connected with the rubber plugging cap, the lower part of the rubber protective sleeve is tightly connected with the fixed bottom plate, and the spring sleeve is rigidly connected with the fixed bottom plate.

[0012] Further, the suction one-way valve includes a spring, a rubber protective sleeve, a rubber plugging cap, a spring sleeve and a fixed bottom plate; the upper part of the rubber protective sleeve is hermetically connected with the rubber plugging cap, the lower part of the rubber protective sleeve is tightly connected with the fixed bottom plate, and the fixed bottom plate is rigidly connected with the spring sleeve.

[0013] Further, the fixed bottom plate is a cross-shaped hollow structure, the fixed bottom plate is located at the center of the grouting one-way valve and / or the suction one-way valve, and the cross outer edges of the fixed bottom plate are respectively fixedly connected with the inner walls of the slurry suction chamber and the grouting chamber.

[0014] Further, the limiting plate is annular, the outer edge of the limiting plate is tightly fixedly connected with the inside of the grouting chamber, the edge of the inner hole of the limiting plate is movably connected with the rubber plugging cap in the grouting one-way valve, and the diameter of the inner hole is smaller than the outer diameter of the rubber plugging cap in the grouting one-way valve.

[0015] Further, the piston includes two grooves and rubber rings installed in the two grooves.

[0016] Further, the front end of the limiting sleeve is an external thread and the rear end is an internal protruding ring;

[0017] The outer diameter of the slurry suction chamber < the diameter of the internal protruding ring < the outer diameter of the rubber ring on the piston. When the piston moves to the internal protruding ring of the limiting sleeve, the internal protruding ring clamps the rubber ring to realize the limiting function.

[0018] Further, it further includes a handle, and the handle is arranged on the outer wall of the slurry suction chamber.

[0019] Further, it also includes a grouting pipe; the rear end of the grouting pipe is sealingly connected to the front end of the grout spraying chamber; the diameter of the grouting pipe gradually decreases from the rear end to the front end.

[0020] Further, it also includes a slurry funnel or a conduit; the slurry funnel or the conduit is sealingly connected to the rear end of the slurry suction chamber. Description of the Drawings

[0021] Figure 1 Schematic diagram of the grouting device (slurry funnel type) in an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the grouting device (conduit type) in an embodiment of the present invention;

[0023] Figure 3 Schematic diagram of the grouting device (conduit type) in an embodiment of the present invention;

[0024] Figure 4 Schematic diagram of the grout spraying chamber in an embodiment of the present invention;

[0025] Figure 5 Schematic diagram of the limit sleeve in an embodiment of the present invention;

[0026] Figure 6 Schematic diagram of the slurry suction chamber in an embodiment of the present invention;

[0027] Figure 7 Schematic diagram of the one-way valve in an embodiment of the present invention;

[0028] Figure 8 Schematic diagram of the fixed bottom plate in an embodiment of the present invention;

[0029] Figure 9 Schematic diagram of the limit plate in an embodiment of the present invention;

[0030] Figure 10 Schematic diagram of the piston in an embodiment of the present invention.

[0031] Description of the reference numerals:

[0032] 1. Grout spraying chamber; 2. Limit plate; 3. Piston; 4. Limit sleeve; 5. Slurry suction chamber; 61. Suction slurry one-way valve; 62. Grout spraying one-way valve; 7. Spring; 8. Rubber protective sleeve; 9. Rubber plugging cap; 10. Spring sleeve; 11. Fixed bottom plate; 12. Handle; 13. Grouting pipe; 14. Rubber ring; 15. Slurry funnel; 16. Conduit; 17. Groove. Detailed Embodiments

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0034] Please refer to Figures 1 to 10 , the present invention provides a grouting device, which includes a slurry spraying chamber 1, a limiting sleeve 4 and a slurry suction chamber 5; a slurry spraying check valve 62 is arranged at the front end of the slurry spraying chamber 1, and a limiting plate 2 is arranged at the rear end; a piston 3 is arranged at the front end of the slurry suction chamber 5, and a slurry suction check valve 61 is arranged at the rear end; the front end of the limiting sleeve 4 is hermetically connected to the slurry spraying chamber 1, and the rear end of the limiting sleeve 4 is hermetically connected to the slurry suction chamber 5; the relative movement of the limiting sleeve 4 and the piston 3 causes a pressure difference between the inside and the outside of the grouting device.

[0035] The front end and the rear end described in the present invention are relative directions. The end close to the part where grouting is required is the front end, and the end far from the part where grouting is required is the rear end.

[0036] The present invention does not limit the use of the grouting device, and it can be used for injecting slurry, oil, water or air, etc. In a specific embodiment, the grouting device is used to perform grouting and plugging treatment on the tie bolts, solving the disadvantages in the conventional tie bolt hole grouting technology that mainly uses plunger-type manual tools or pressure grouting equipment for mortar perfusion; using plunger-type manual tools for plugging results in slow construction speed and difficult-to-guarantee construction quality; the grouting method of pressure grouting equipment requires a lot of labor, and generates high pressure during operation, which has certain risks and has high requirements for the working performance of the mortar and strict technical requirements. The grouting device provided by the present invention is both efficient and safe, and has good prospects for popularization.

[0037] Specifically, the slurry spraying check valve 62 and / or the slurry suction check valve 61 includes a spring 7, a rubber protective sleeve 8, a rubber plugging cap 9, a spring sleeve 10, and a fixed bottom plate 11; the upper part of the rubber protective sleeve 8 is hermetically connected to the rubber plugging cap 9, the lower part of the rubber protective sleeve 8 is tightly connected to the fixed bottom plate 11, and the spring sleeve 10 is fixedly connected to the fixed bottom plate 11.

[0038] The upper part of the rubber protective sleeve 8 in the slurry spraying check valve 62 and / or the slurry suction check valve 61 is densely connected to the rubber plugging cap 9. The upper part of the rubber protective sleeve 8 has a certain rigidity to ensure that the rubber protective sleeve 8 is always outside the spring sleeve 10 and prevent its position from deviating. The lower part of the rubber protective sleeve 8 is softer and has a certain folding performance. The lower part is tightly connected to the fixed bottom plate 11 to prevent slurry from flowing into the inside of the rubber protective sleeve 8 and causing spring blockage.

[0039] The spring sleeve 10 is fixedly connected to the fixed base plate 11 to prevent the spring from deforming and deviating. Both ends of the spring 7 are closely connected to the fixed base plate 11 and the rubber plugging cap 9 respectively to prevent either from falling off.

[0040] The fixed base plate 11 is of a cross-shaped hollow structure. The fixed base plate 11 is located at the center of the slurry spraying one-way valve 62 and / or the slurry suction one-way valve 61. The cross-shaped outer edge of the fixed base plate 11 is fixedly connected to the inner walls of the slurry suction chamber 5 and the slurry spraying chamber 1 respectively.

[0041] The limiting plate 2 is in an annular shape. The outer edge of the limiting plate 2 is fixedly and closely connected to the inside of the slurry spraying chamber 1. The edge of the inner hole of the limiting plate 2 is movably connected to the rubber plugging cap 9 in the slurry spraying one-way valve, and the diameter of the inner hole is smaller than the outer diameter of the rubber plugging cap 9 in the slurry spraying one-way valve.

[0042] There are grooves 17 matching two rubber rings at the front end of the slurry suction chamber 5. Installing the rubber ring 14 on the grooves 17 can form the piston 3 device.

[0043] The limiting sleeve 4 is located between the slurry spraying chamber 1 and the slurry suction chamber 5. The front end of the limiting sleeve 4 has an external thread and the rear end has an internal protruding ring; the front end of the limiting sleeve 4 is threadedly connected to the slurry spraying chamber 1, and the rear end of the limiting sleeve 4 is hermetically and movably connected to the slurry suction chamber 5 through the piston 3;

[0044] The diameter of the internal protruding ring is smaller than the outer diameter of the rubber ring 14 on the piston 3 but larger than the outer diameter of the slurry suction chamber 5. When the piston 3 moves to the internal protruding ring of the limiting sleeve 4, the internal protruding ring catches the rubber ring 14 to achieve the limiting function. The limiting sleeve 4 has the same inner diameter as the slurry suction chamber 5, and the outer diameter of the rubber ring 14 of the piston 3 is slightly larger than the inner diameter of the limiting sleeve 4 to ensure that sufficient pressure difference can be generated when the piston 3 moves and prevent slurry leakage.

[0045] Furthermore, the grouting device further includes a handle 12, and the handle 12 is arranged on the outer wall of the slurry suction chamber 5; in a specific embodiment, the handle 12 is a rubber friction type handle 12.

[0046] Furthermore, the grouting device further includes a grouting pipe 13; the rear end of the grouting pipe 13 is hermetically connected to the front end of the slurry spraying chamber 1; the diameter of the grouting pipe 13 gradually decreases from the rear end to the front end. In a specific implementation, the hermetic connection is a threaded connection.

[0047] Furthermore, the grouting device further includes a slurry storage funnel 15 or a conduit 16; the slurry storage funnel 15 or the conduit 16 is hermetically connected to the rear end of the slurry suction chamber 5; the rear end of the slurry suction chamber 5 is an external thread device matching the slurry storage funnel 15 and the conduit 16. In a specific embodiment, the hermetic connection is a threaded connection.

[0048] In use, first place the slurry to be injected in the slurry hopper 15, or insert the conduit 16 into the slurry bucket to be injected; then hold the rubber friction handle 12 of the slurry suction chamber 5 with one hand and hold the limit sleeve 4 with the other hand. By pulling out the limit sleeve 4 to make the piston 3 and the limit sleeve 4 move relative to each other, a pressure difference is generated between the inside and outside of the slurry suction chamber 5. The spring of the slurry suction check valve 61 contracts, and the slurry suction check valve 61 opens, and the slurry is absorbed into the slurry suction chamber 5. Then, by pushing the limit sleeve 4 to make the piston 3 and the limit sleeve 4 move relative to each other, the pressure inside the slurry suction chamber 5 is greater than the pressure inside the slurry spraying chamber 1. The spring of the slurry suction check valve 61 contracts, the slurry suction check valve 61 closes, the spring of the slurry spraying check valve 62 contracts, and the slurry spraying check valve 62 opens. The slurry is injected from the slurry suction chamber 5 into the slurry spraying chamber 1 and then injected through the conduit 16 to the part where grouting is required.

[0049] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; if these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should all be considered as the protection scope of the present invention.

Claims

1. A grouting device, characterized in that: It includes a shotcrete chamber, a limiting sleeve and a grout suction chamber; A spraying check valve is provided at the front end of the spraying chamber, and a limit plate is provided at the rear end; A piston is arranged at the front end of the slurry suction chamber, and a slurry suction one-way valve is arranged at the rear end; The front end of the limiting sleeve is sealed and connected to the grouting chamber, and the rear end of the limiting sleeve is sealed and movably connected to the grouting chamber; the relative movement of the limiting sleeve and the piston generates a pressure difference between the inside and the outside of the grouting device; The spray check valve includes a spring, a rubber protective sleeve, a rubber plugging cap, a spring sleeve, and a fixed bottom plate; the upper part of the rubber protective sleeve is sealed and connected to the rubber plugging cap, the lower part of the rubber protective sleeve is tightly connected to the fixed bottom plate, and the spring sleeve is rigidly connected to the fixed bottom plate; The slurry suction one-way valve comprises a spring, a rubber protective sleeve, a rubber sealing cap, a spring sleeve, and a fixed bottom plate; the upper part of the rubber protective sleeve is sealed and connected with the rubber sealing cap, the lower part of the rubber protective sleeve is tightly connected with the fixed bottom plate, and the fixed bottom plate is rigidly connected with the spring sleeve; The fixed bottom plate is a cross hollow structure, the fixed bottom plate is located at the center of the shotcrete check valve and / or the slurry suction check valve, and the cross outer edges of the fixed bottom plate are fixedly connected to the inner walls of the slurry suction chamber and the shotcrete chamber respectively; The limit plate is in a circular shape, the outer edge of the limit plate is fixedly and tightly connected to the inside of the shotcrete chamber, the inner hole edge of the limit plate is movably connected to the rubber plugging cap in the shotcrete one-way valve, and the inner hole diameter is smaller than the outer diameter of the rubber plugging cap in the shotcrete one-way valve; The piston includes two grooves and a rubber ring installed in the two grooves; The front end of the limiting sleeve is an external thread, and the rear end is an internal protruding ring; The outer diameter of the slurry suction chamber is less than the diameter of the inner protruding ring and less than the outer diameter of the rubber ring on the piston. When the piston moves to the inner protruding ring of the limiting sleeve, the inner protruding ring clamps the rubber ring to realize the limiting function.

2. The grouting device according to claim 1, characterized in that: The utility model also comprises a handle, which is arranged on the outer wall of the slurry suction chamber.

3. The grouting device according to claim 2, characterized in that: It also includes a grouting pipe; the rear end of the grouting pipe is sealed and connected to the front end of the spraying chamber; the diameter of the grouting pipe gradually decreases from the rear end to the front end.

4. The grouting device according to claim 3, characterized in that: It also includes a slurry holding funnel or a conduit; the slurry holding funnel or the conduit is sealed and connected to the rear end of the slurry suction chamber.

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