An anti-punching paste-like slurry perfusion anti-reflux occlusion device

Abstract

The utility model provides a kind of anti-punching paste slurry perfusion anti-reflux plugging device, including plugging component;The plugging component includes cylinder one, the inside wall of cylinder one is slidably connected with cylinder two, the inside bottom wall of cylinder two is fixedly connected with support rod, the top of support rod is fixedly connected with float ball, and the top of float ball is threadedly connected with threaded seal plug;The utility model is provided with cylinder one and cylinder two, when perfusion pressure rises, float ball is driven cylinder two to slide up by paste slurry jacking, so that the through hole two of cylinder one and cylinder two side wall, through hole one are accurately aligned, slurry passage is formed, once perfusion stops or pressure drops sharply, float ball rapidly sinks due to gravity and steel powder counterweight, drives cylinder two to move down and misplaces through hole, completely blocks paste slurry reflux path, this pure mechanical linkage mechanism does not need external energy intervention, especially adapt to the high viscosity characteristics of paste slurry, effectively overcome the sealing failure risk of traditional water seal gas seal, increase the stability of device.

Description

Technical Field

[0001] This utility model relates to the field of construction equipment, and in particular to an anti-backflow sealing device for grout injection. Background Technology

[0002] In modern engineering, particularly in projects such as oil and gas extraction, tunnel construction, and foundation reinforcement, preventing liquid or gas backflow is a significant technical challenge. Common liquid backflow problems typically occur during pipeline system maintenance or repair, or during grouting. Without effective sealing measures, the injected grout can easily flow backward, affecting project progress and structural stability. To address this issue, researchers and engineers have continuously sought effective solutions, leading to the development of a backflow prevention and sealing device that uses a paste-like grout for injection.

[0003] Traditional backflow prevention sealing technologies include methods such as water seals and gas seals. However, these methods often suffer from limitations such as materials unsuitable for long-term fixation, complex operation, or high costs, restricting their widespread application in various engineering environments. Paste-like grouts, due to their high viscosity and good fluidity, are widely used in temporary or permanent sealing projects. Compared to traditional liquid or gas sealing methods, paste-like grouts not only adhere better to the contact surfaces of pipes or holes to prevent backflow, but also exhibit strong stability and are less affected by temperature changes in sealing effectiveness.

[0004] In summary, there is no existing technology that can effectively and efficiently solve the problem of backflow prevention in the injection process of paste slurry. This utility model aims to provide an anti-backflow sealing device for anti-impact paste slurry injection. This device can not only efficiently seal the backflow problem in the injection process, but also has the advantages of convenient installation, easy maintenance and cleaning. Therefore, an anti-impact paste slurry injection backflow sealing device is proposed. Utility Model Content

[0005] In view of this, the present invention provides an anti-backflow sealing device for grout injection to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model is achieved as follows: an anti-impact paste-like slurry injection backflow prevention and sealing device, including a sealing component;

[0007] The sealing assembly includes a cylindrical body one, a cylindrical body two slidably connected to the inner wall of the cylindrical body one, a support rod fixedly connected to the bottom inner wall of the cylindrical body two, a float fixedly connected to the top of the support rod, a threaded sealing plug threadedly connected to the top of the float, the float having a zirconia ceramic layer, a brass layer and a stainless steel layer from the outside to the inside, the float being filled with a certain amount of steel powder, a through hole two being formed on the outer wall of the cylindrical body one, and a through hole one being formed on the outer wall of the cylindrical body two.

[0008] More preferably, a funnel is fixedly connected to the top of the cylinder, a top cover is fixedly connected to the top of the funnel, and a grouting port is installed on the top cover, the grouting port penetrating the top cover.

[0009] More preferably, the top cover has two holes, and the bottom of the top cover is hinged to a sealing plate by a torsion spring, the size of the sealing plate being the same as the size of the holes.

[0010] More preferably, a water inlet pipe and a sewage suction pipe pass through the hole, and the diameters of the water inlet pipe and the sewage suction pipe are the same as the size of the hole.

[0011] More preferably, the outer wall of the first cylinder is connected to a grouting pipe, and the grouting pipe, the first through hole, and the second through hole have the same size.

[0012] More preferably, the outer wall of the grouting pipe is provided with a plurality of grouting holes.

[0013] More preferably, the bottom end of the sewage suction pipe is lower than the bottom end of the water inlet pipe.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] I. This utility model, through the setting of float ball and threaded sealing plug, the float ball composed of zirconia ceramic layer, brass layer and stainless steel layer has super corrosion resistance, impact resistance and structural stability. The steel powder filling inside makes the density of the float ball adjustable, thereby adapting to the grouting needs at different depths. The setting of zirconia ceramic layer makes the grout on the outer wall of the float ball easy to clean, improving the convenience of the device.

[0016] II. This utility model, through the arrangement of cylinder one and cylinder two, allows the float ball to slide upwards under the support of the slurry when the injection pressure increases. This ensures that the through holes one and two on the side walls of cylinder one and cylinder two are precisely aligned, forming a slurry channel. Once the injection stops or the pressure drops suddenly, the float ball sinks rapidly due to its own weight and the counterweight of the steel powder, driving cylinder two to move downwards and misalign to seal the through holes, completely blocking the slurry backflow path. This purely mechanical linkage mechanism requires no external energy intervention and is particularly suitable for the high viscosity characteristics of paste-like slurries. It effectively overcomes the risk of sealing failure of traditional water-sealed and air-sealed systems, increasing the stability of the device.

[0017] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the structure of this utility model;

[0020] Figure 2 This is a front sectional view of the present invention;

[0021] Figure 3 This is a side sectional view of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of a portion of area A in the middle;

[0023] Figure 5 This is a diagram of the internal structure of the float.

[0024] Reference numerals: 100, sealing assembly; 101, cylinder one; 102, funnel; 103, top cover; 104, grouting port; 105, cylinder two; 106, support rod; 107, float; 108, grouting pipe; 109, grouting hole; 110, through hole one; 111, through hole two; 112, water inlet pipe; 113, sludge suction pipe; 114, zirconia ceramic layer; 115, brass layer; 116, stainless steel layer; 117, steel powder; 118, threaded sealing plug; 119, sealing plate. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0026] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0027] like Figure 1-5As shown, this utility model embodiment provides an anti-backflow sealing device for grout injection, including a sealing component 100;

[0028] The sealing assembly 100 includes a first cylinder 101, a second cylinder 105 slidably connected to the inner wall of the first cylinder 101, a support rod 106 fixedly connected to the bottom inner wall of the second cylinder 105, a float 107 fixedly connected to the top of the support rod 106, a threaded sealing plug 118 threadedly connected to the top of the float 107, and the float 107 consists of a zirconia ceramic layer 114, a brass layer 115, and a stainless steel layer 116 from the outside to the inside. The inside of the float 107 is filled with a certain amount of steel powder 117. A second through hole 111 is opened on the outer wall of the first cylinder 101, and a first through hole 110 is opened on the outer wall of the second cylinder 105.

[0029] In one embodiment, a funnel 102 is fixedly connected to the top of the cylinder 101, and a top cover 103 is fixedly connected to the top of the funnel 102. A grouting port 104 is installed on the top cover 103, and the grouting port 104 penetrates the top cover 103.

[0030] In one embodiment, the top cover 103 has two holes, and the bottom of the top cover 103 is hinged to a sealing plate 119 by a torsion spring. The size of the sealing plate 119 is the same as the size of the holes.

[0031] In one embodiment, a water inlet pipe 112 and a sewage suction pipe 113 pass through the hole, and the diameters of the water inlet pipe 112 and the sewage suction pipe 113 are the same as the size of the hole.

[0032] In one embodiment, the outer wall of the cylinder 101 is connected to a grouting pipe 108, and the grouting pipe 108, through hole 110 and through hole 211 have the same size.

[0033] In one embodiment, the outer wall of the grouting pipe 108 is provided with a plurality of grouting holes 109.

[0034] In one embodiment, the bottom of the sludge suction pipe 113 is lower than the bottom of the water inlet pipe 112.

[0035] In operation, this invention works as follows: The sealing plug is rotated open, and an appropriate amount of steel powder 117 is filled into the float 107 to adjust its density. Initially, due to the counterweight of the internal steel powder 117 and its own weight, the float 107 causes the cylinder 2 105 to slide to the bottom of the cylinder 1 101. At this time, the through hole 110 on the outside of the cylinder 2 105 is completely misaligned with the through hole 111 on the outside of the cylinder 1 101, forming a physical isolation barrier. When the high-pressure paste-like grout is injected through the grouting port 104, the grout pressure acts on the top of the float 107, pushing it to rise against its own weight. The float 107, through the support rod 106, drives the cylinder 2 105 to slide synchronously upwards along the inner wall of the cylinder 1 101 until the through hole 110 and the through hole 111 are precisely aligned. The grout then flows into the grouting pipe 108 through this aligned channel and is evenly injected into the target area through the distributed grouting holes 109 on its side wall. During the grouting process… The three-layer composite structure of the float 107 achieves dynamic stability. The zirconia ceramic layer 114 resists slurry abrasion, the brass layer 115 absorbs impact vibration, and the stainless steel layer 116 maintains structural strength, ensuring no deformation under high pressure. When the injection stops or the system pressure drops, the slurry support force disappears, and the float 107 sinks rapidly under the counterweight of the steel powder 117. The traction cylinder 105 moves down, causing the through hole 110 and through hole 111 to misalign again, completely cutting off the flow path. To address the need for cleaning residual slurry, after construction, the water inlet pipe 112 and the sludge suction pipe 113 are inserted through the hole in the top cover 103. When pressed down, the sealing plate 119 is pushed open. After the cleaning fluid is injected from the water inlet pipe 112, because the bottom of the sludge suction pipe 113 is lower than the water inlet pipe 112, the dissolved paste residue is efficiently discharged through the sludge suction pipe 113 under negative pressure. At the moment the pipe is pulled out, the torsion spring drives the sealing plate 119 to automatically reset and press the hole, achieving zero leakage sealing.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A backflow prevention and plugging device for pounding paste-like grout, comprising a plugging component (100); characterized in that: The sealing assembly (100) includes a first cylinder (101), a second cylinder (105) is slidably connected to the inner wall of the first cylinder (101), a support rod (106) is fixedly connected to the bottom inner wall of the second cylinder (105), a float (107) is fixedly connected to the top of the support rod (106), a threaded sealing plug (118) is threadedly connected to the top of the float (107), the float (107) consists of a zirconia ceramic layer (114), a brass layer (115) and a stainless steel layer (116) from the outside to the inside, and the float (107) is filled with a certain amount of steel powder (117). The outer wall of the first cylinder (101) is provided with a second through hole (111), and the outer wall of the second cylinder (105) is provided with a first through hole (110).

2. The anti-backflow sealing device for grout injection according to claim 1, characterized in that: A funnel (102) is fixedly connected to the top of the cylinder (101), and a top cover (103) is fixedly connected to the top of the funnel (102). A grouting port (104) is installed on the top cover (103), and the grouting port (104) penetrates the top cover (103).

3. The anti-reflow sealing device for grout injection according to claim 2, characterized in that: The top cover (103) has two holes, and the bottom of the top cover (103) is hinged to a sealing plate (119) by a torsion spring. The size of the sealing plate (119) is the same as the size of the holes.

4. The anti-backflow sealing device for grout injection according to claim 3, characterized in that: A water inlet pipe (112) and a sewage suction pipe (113) pass through the hole, and the diameters of the water inlet pipe (112) and the sewage suction pipe (113) are the same as the size of the hole.

5. The anti-backflow sealing device for grout injection according to claim 4, characterized in that: The outer wall of the first cylinder (101) is connected to a grouting pipe (108), and the grouting pipe (108), the first through hole (110), and the second through hole (111) have the same size.

6. The anti-backflow sealing device for grout injection according to claim 5, characterized in that: The outer wall of the grouting pipe (108) is provided with several grouting holes (109).

7. The anti-backflow sealing device for grout injection according to claim 6, characterized in that: The bottom of the sewage suction pipe (113) is lower than the bottom of the water inlet pipe (112).

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