Construction joint pre-embedded grouting device

Abstract

The utility model discloses a construction joint pre-embedded grouting device which comprises an outlet pipe, an adapter disc and a grouting pipe, the outlet pipe obliquely penetrates through the edge of a water stop belt, and the top end of the outlet pipe extends towards an external formwork; the transfer disc is a hollow disc, the transfer disc is arranged at the bottom end of the lead-out pipe and communicated with the lead-out pipe, and a plurality of branch pipes communicated with an inner cavity of the transfer disc are arranged on the transfer disc at intervals in the circumferential direction; a plurality of grouting pipes are arranged, the plurality of grouting pipes are respectively communicated with the branch pipes through pipe joints in an inserted manner, a plug is arranged at the end part of each grouting pipe, and a grouting hole is formed in each grouting pipe. According to the construction joint pre-embedded grouting device, the problem that grouting cannot be repeated can be effectively prevented, and therefore normal construction is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a construction joint pre-embedded grouting device. Background Art

[0002] Water stopping during construction of underground structures has always been a difficult problem. Construction joints are weak links in waterproofing due to their non-integrated structure. Although measures such as grouting blind pipes are added in the design stage, many construction joints usually form common water seepage channels after the completion of the underground structure. In addition, the existing grouting blind pipes cannot be grouted repeatedly. When the effect of one grouting may not be able to completely block the water at one time, grouting cannot be carried out again. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a pre-embedded grouting device for construction joints, which can effectively prevent the problem of repeated grouting from occurring, thereby ensuring normal construction.

[0004] In order to achieve the above object, the utility model is implemented through the following technical scheme: a construction joint pre-embedded grouting device, comprising:

[0005] An outlet pipe, the outlet pipe obliquely passes through the edge of the water stop belt, and the top end of the outlet pipe extends toward the external template;

[0006] The adapter plate is a hollow plate, which is arranged on the bottom end of the lead-out pipe and is connected to the lead-out pipe. The adapter plate is provided with a plurality of branch pipes connected to its inner cavity at intervals in the circumferential direction; and

[0007] There are multiple grouting pipes, and the multiple grouting pipes are connected to the branch pipes through pipe joints respectively. A plug is provided at the end of each grouting pipe, and a grouting hole is opened on the grouting pipe.

[0008] Furthermore, it also includes a sleeve, the bottom end of the sleeve is closed and the top end is open, and the top end of the lead-out pipe penetrates into the sleeve from the bottom plate of the sleeve.

[0009] Furthermore, the top end surface of the sleeve is a wedge-shaped surface, and the wedge-shaped surface is flush with the outer edge of the lining.

[0010] Furthermore, it also includes a support frame, there are multiple support frames, and the multiple support frames are supported on the grouting pipe at intervals. The support frame is fixed by structural steel bars and supports the grouting pipe against the wall.

[0011] Furthermore, the support frame includes a support rod and an arc-shaped support plate, the arc-shaped support plate is arranged on the top of the support rod and supported on the grouting pipe, and the support rod is fixed by structural steel bars.

[0012] Furthermore, the support rod is a telescopic rod.

[0013] Furthermore, it also includes a water stop ring, which is sleeved on the outlet pipe.

[0014] Beneficial effects of the utility model:

[0015] The above-mentioned construction joint pre-embedded grouting device, the utility model provides a construction joint pre-embedded grouting device, including an outlet pipe, an adapter plate and a grouting pipe, the outlet pipe obliquely passes through the edge of the water stop belt, and the top of the outlet pipe extends to the external template. The adapter plate is a hollow plate, the adapter plate is arranged at the bottom end of the outlet pipe and connected, and a plurality of branch pipes connected to its inner cavity are opened at intervals on the adapter plate in the circumference. There are multiple grouting pipes, and the multiple grouting pipes are respectively connected to the branch pipes through pipe joints, and a plug is arranged at the end of each grouting pipe, and a grouting hole is opened on the grouting pipe.

[0016] By adopting the above-mentioned grouting device, since a plurality of grouting pipes are provided, after the grouting liquid is injected into the outlet pipe, grouting can be carried out simultaneously through the plurality of grouting pipes, thereby increasing the grouting speed; at the same time, during use, when a grouting pipe is blocked or fails due to external force and construction and manufacturing reasons, other grouting pipes can be used for supplementary grouting, which plays a role in supplementing omissions, consolidating and strengthening, thereby ensuring the overall grouting quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is the plan view of the construction joint structure;

[0019] Figure 2 This is a cross-sectional view of the water stop;

[0020] Figure 3 A schematic diagram of a construction joint pre-embedded grouting device provided in one embodiment of the utility model;

[0021] Figure 4 for Figure 1 A schematic diagram of a construction joint pre-embedded grouting device in which a lead-out pipe and a transfer plate are connected together;

[0022] Figure 5 for Figure 1 A schematic diagram of a sleeve in a construction joint pre-embedded grouting device is shown;

[0023] Figure 6 for Figure 1 A schematic diagram of a support frame in a construction joint pre-embedded grouting device is shown;

[0024] Figure 7 for Figure 1 A schematic diagram of a support frame in a construction joint pre-embedded grouting device is shown;

[0025] Reference numerals:

[0026] 100, lead-out pipe; 200, adapter plate; 210, branch pipe; 300, grouting pipe; 310, plug; 400, sleeve; 500, support frame; 510, support rod; 520, arc-shaped support plate; 600, water stop ring. DETAILED DESCRIPTION

[0027] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0028] See also Figures 3 to 7 The utility model provides a construction joint pre-embedded grouting device, including an outlet pipe 100, an adapter plate 200 and a grouting pipe 300. The outlet pipe 100 passes obliquely through the edge of the water stop belt, and the top of the outlet pipe 100 extends toward the external template. The adapter plate 200 is a hollow plate, which is arranged at the bottom end of the outlet pipe 100 and connected. A plurality of branch pipes 210 connected to the inner cavity thereof are provided at intervals circumferentially on the adapter plate 200. There are a plurality of grouting pipes 300, and the plurality of grouting pipes 300 are respectively connected to the branch pipes 210 through pipe joints. A plug 310 is provided at the end of each grouting pipe 300, and a grouting hole is provided on the grouting pipe 300.

[0029] By adopting the above-mentioned grouting device, since a plurality of grouting pipes 300 are provided, after the grouting liquid is injected into the outlet pipe 100, grouting can be performed simultaneously through the plurality of grouting pipes 300, thereby increasing the grouting speed; at the same time, during use, when a certain grouting pipe 300 is blocked or fails due to external force and construction and manufacturing reasons, other grouting pipes 300 can be supplemented with grouting to play a role in supplementing omissions, consolidation and reinforcement, thereby ensuring the overall grouting quality.

[0030] It should be noted that, in the specific implementation, the main material of the grouting pipe 300 can be 32mm PPR pipe. The pipe wall thickness is 5.4mm, and small holes are opened on the upper part of the pipe body. The small holes are arranged in a plum blossom shape with the same spacing of 10cm and a hole diameter of 3mm. In addition, in order to ensure that the slurry does not enter the unplanned grouting pipe during the pouring of concrete and the injection of adjacent grouting pipes, the hole opening needs to be sealed with multiple layers of waterproof tape (no less than three layers, staggered and overlapping). And take grouting tests to test the effect. If it cannot play a sealing role, it is necessary to add a 1mm thick hose to the outside of the pipe for comprehensive protection, and the hose is also wrapped with tape every 10mm. The inside of the rubber sleeve should also be sealed with tape.

[0031] In addition, when installing, the lead-out pipe 100 needs to cross the waterstop belt and pass through the outer edge of the waterstop belt, which can effectively solve the interference problem between the grouting pipe 300 and the waterstop belt.

[0032] As a preferred embodiment, the device further comprises a water stop ring 600, which is sleeved on the outlet pipe 100 to play a water stop role.

[0033] As another preferred embodiment, the device further includes a sleeve 400, the bottom end of the sleeve 400 is closed and the top end is open, and the top end of the lead-out pipe 100 penetrates into the sleeve 400 from the bottom plate of the sleeve 400. With this structure, the end of the lead-out pipe 100 can be designed to be hidden, so that the end of the lead-out pipe 100 does not extend out of the external template, which can avoid the buried grouting pipe 300 from interfering with the lining template and affecting the installation and grouting of the lining template. It should be noted that since the grouting pipe 300 does not extend out of the external template, after the template is removed, it should be possible to find the interface of the grouting pipe without secondary chiseling or a small amount of chiseling.

[0034] Furthermore, the top surface of the sleeve 400 is a wedge-shaped surface, and the wedge-shaped surface is flush with the outer edge of the lining, so that the end surface of the sleeve 400 can be more conveniently attached to the external structural template, thereby being more conducive to effectively isolating the lead-out pipe 100 from the concrete, thereby facilitating connection with the injection pipe thread head of the grouting machine.

[0035] As another preferred embodiment, the device further includes a support frame 500. There are multiple support frames 500, and the multiple support frames 500 are supported on the grouting pipe 300 at intervals. The support frames 500 are fixed by structural steel bars, and the grouting pipe 300 is supported against the wall. In this way, the grouting pipe 300 can be supported and the grouting pipe 300 can be closely connected to the wall. The gap between the wall and the concrete structure can be fully filled.

[0036] Specifically, the support frame 500 includes a support rod 510 and an arc-shaped support plate 520. The arc-shaped support plate 520 is arranged on the top of the support rod 510 and supported on the grouting pipe 300. The support rod 510 is fixed by structural steel bars.

[0037] During installation, the arc-shaped support plate 520 is supported on the grouting pipe 300, and then the support rod 510 is fixed to the structural steel bar, and the fixing method can be welding or binding. Then, the arc-shaped support plate 520 can play an effective supporting role.

[0038] In specific implementation, there are multiple support frames 500, and multiple support frames 500 can form multi-point support. In addition, the support rod 510 can also be set to a telescopic rod with adjustable length. During installation, the length can be adjusted according to the on-site conditions for easy installation.

[0039] Specific operation and construction method of the above-mentioned construction joint pre-embedded grouting device:

[0040] 1. First, connect the plug 310 and one end of the grouting pipe 300 together through a hot melt machine, and then connect the other end of the grouting pipe 300 to the outlet pipe 100 and the branch pipe 210 through a hot melt machine, and repeat the above steps until all the grouting pipes 300 are installed on the adapter plate 200;

[0041] 2. Sleeve the water stop ring 600 onto the outlet pipe 100;

[0042] 3. Pull the assembled device along the side wall to the outside of the wall side steel bars and place it to the bottom of the side wall. Adjust the inclination of the lead-out pipe 100 to ensure that the wedge-shaped surface of the sleeve 400 is parallel to the outer template surface, and fix it with the outer row of vertical steel bars by local spot welding;

[0043] 4. Sleeve the nut on the top of the outlet pipe 100, insert the sleeve 400 on the top of the outlet pipe 100, and adjust the wedge surface of the sleeve 400 until the wedge surface is flush with the outer surface of the structural plate;

[0044] 5. Fill the sleeve 400 with cotton wool and compact it;

[0045] 6. Use the arc-shaped support plate 520 of the support frame 500 to support the grouting pipe 300, and tighten it at the maximum position of the side wall variable section, and spot weld the other end of the support rod 510 to the vertical horizontal ribs; the specific number of the support frame 500 is based on ensuring that the grouting pipe 300 is in close contact with the outer wall;

[0046] 7. Repeat the above steps until all the grouting pipes 300 are supported and fixed, and the device installation is completed;

[0047] 8. After the second lining concrete is poured and has a certain strength, remove the structural formwork, take out the cotton wool in the sleeve 400, connect the pipe of the grouting machine to the exposed end of the lead-out pipe 100 and start grouting; if water is leaking, use cement and water glass double liquid slurry, if there is no water leakage, use cement pure slurry, the grouting amount is controlled based on the principle of filling as much as possible, and the pressure is based on the principle of not breaking the concrete structure. If it is not fully filled for a long time, adjust it appropriately and use cement water glass slurry.

[0048] The above-mentioned construction joint pre-embedded grouting device has the following advantages:

[0049] 1. Since the device is provided with a plurality of grouting pipes 300, after the grouting liquid is injected into the outlet pipe 100, grouting can be performed simultaneously through the plurality of grouting pipes 300, thereby increasing the grouting speed. Meanwhile, during use, when a grouting pipe 300 is blocked or fails due to external force or construction and manufacturing reasons, other grouting pipes 300 can be used for supplementary grouting, thereby playing the role of supplementing omissions, arching and strengthening, thereby ensuring the overall grouting quality;

[0050] 2. The outlet pipe 100 of the grouting pipe 300 adopts a hidden design and does not extend out of the external template to avoid interference;

[0051] 3. The wedge-shaped surface facilitates the end face of the sleeve 400 to be in close contact with the external structural template, thereby being more conducive to effectively isolating the outlet of the lead-out pipe 100 from the concrete, thereby facilitating the connection with the thread head of the external slurry injection pipe;

[0052] 4. The outlet pipe 100 obliquely crosses the water stop belt and passes through the outer edge of the water stop belt, which can effectively solve the problem of interference between the grouting pipe 300 and the water stop belt;

[0053] 5. The water stop ring 600 is sleeved on the outlet pipe 100. It can play a role of water stop;

[0054] 6. The support frame 500 supports the grouting pipe 300 and allows the grouting pipe 300 to be in close contact with the wall, thereby fully filling the gap between the wall and the concrete structure.

[0055] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A construction joint pre-embedded grouting device, It is characterized in that include: An outlet pipe, the outlet pipe obliquely passes through the edge of the water stop belt, and the top end of the outlet pipe extends toward the external template; The adapter plate is a hollow plate, which is arranged on the bottom end of the outlet pipe and connected to the outlet pipe, and a plurality of branch pipes connected to the inner cavity of the adapter plate are opened at intervals in the circumferential direction; and There are multiple grouting pipes, and the multiple grouting pipes are connected to the branch pipes through pipe joints respectively. A plug is provided at the end of each grouting pipe, and a grouting hole is opened on the grouting pipe.

2. The construction joint pre-embedded grouting device according to claim 1, It is characterized in that It also includes a sleeve, the bottom end of the sleeve is closed and the top end is open, and the top end of the lead-out pipe penetrates into the sleeve from the bottom plate of the sleeve.

3. The construction joint pre-embedded grouting device according to claim 2, It is characterized in that The top end surface of the sleeve is a wedge-shaped surface, and the wedge-shaped surface is flush with the outer edge line of the lining.

4. The construction joint pre-embedded grouting device according to claim 1, It is characterized in that It also includes a support frame, which is provided in plurality. The plurality of support frames are supported on the grouting pipe at intervals. The support frame is fixed by structural steel bars and supports the grouting pipe against the wall.

5. The construction joint pre-embedded grouting device according to claim 4, It is characterized in that The support frame includes a support rod and an arc-shaped supporting plate. The arc-shaped supporting plate is arranged on the top of the support rod and supported on the grouting pipe. The support rod is fixed by structural steel bars.

6. The construction joint pre-embedded grouting device according to claim 5, It is characterized in that The support rod is a telescopic rod.

7. The construction joint pre-embedded grouting device according to claim 1, It is characterized in that It also includes a water stop ring, which is sleeved on the outlet pipe.

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