Sealant filling device for large fracture zone and fracture layer diaphragm wall construction

Abstract

The utility model relates to a sealant filling device for large fracture zone and fracture layer diaphragm wall construction, which belongs to the technical field of underground engineering construction, and comprises a sealant filling device body and a delivery pipe arranged on the sealant filling device body, the top surface of the delivery pipe is fixedly connected with a screw rod, the top surface of the screw rod is provided with a through hole, and the through hole is communicated with the delivery pipe. A driving rod is placed at the top of the screw, a threaded hole is formed in the bottom face of the driving rod, the screw extends into the threaded hole, and a connecting hole is formed in the top face of the driving rod. According to the sealant pouring device for construction of the diaphragm wall of the large fracture zone and the fracture layer, through threaded connection between a screw rod and a threaded hole, the height of a driving rod is adjusted, a worker can conveniently conduct adjustment, the adjusting efficiency is improved, meanwhile, under the action of a telescopic pipe, the threaded hole is protected, a sealant is prevented from entering the threaded hole, and the service life of the sealant pouring device is prolonged. The service life of the threaded hole is prolonged, and effective reinforcement of a large fracture zone and a fracture layer is achieved.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering construction technology, specifically to a sealant injection device for the construction of large-scale anti-seepage walls in fractured zones and fractured layers. Background Technology

[0002] Large fracture zones and fault strata are common geological problems in underground engineering construction, significantly impacting construction safety and project quality. To prevent groundwater from seeping around the bottom of the HDPE geomembrane composite cutoff wall, the bottom of the cutoff wall trench needs to be sealed. This technical measure ensures that the permeability coefficient of the HDPE geomembrane composite cutoff wall is ≤1×10⁻⁶. -7 Ensuring the effective flow rate of cm / s is also a key step in the construction of HDPE membrane flexible vertical seepage barriers.

[0003] Chinese patent CN206143934U discloses a sealant injection device for flexible vertical cutoff walls. This patent discloses a technical solution that ensures uniform injection and reduces the impact of sediment. It solves the problems that existing sealant injection devices for flexible vertical cutoff walls, when using conventional methods of lowering the conduit for injection, are prone to uneven injection, poor bottom bonding, and require reinstallation of the conduit after each injection section, thus limiting the effectiveness of construction.

[0004] When in use, the device ensures uniform sealant injection and reduces the impact of sediment under the action of the bottom perforated pipe and the delivery pipe. However, the height of the delivery pipe is connected by multiple branch pipe threads, which leads to uneven sealant injection under the action of the bottom perforated pipe and the delivery pipe, sediment deposition, and low adjustment and grouting efficiency due to the multi-section branch pipe thread connection. Therefore, a sealant injection device for the construction of large-scale fractured zone and fractured layer anti-seepage wall is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sealant injection device for the construction of large-scale fractured zone and fractured layer anti-seepage walls. It has the advantage of convenient adjustment and solves the problems of uneven sealant injection, sediment deposition, and low adjustment and grouting efficiency caused by the multi-section branch threaded connection of the conveying pipe when similar devices are used.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sealant injection device for the construction of a large-scale fracture zone and fracture layer anti-seepage wall, comprising a sealant injection device body and a delivery pipe disposed on the sealant injection device body, wherein a screw is fixedly connected to the top surface of the delivery pipe.

[0007] The top surface of the screw has a through hole, and a drive rod is placed on the top of the screw. The bottom surface of the drive rod has a threaded hole, and the screw extends into the inside of the threaded hole. The top surface of the drive rod has a connecting hole, and a connecting plate is rotatably connected to the inside of the connecting hole via a bearing. A telescopic tube is fixedly connected to the top surface of the screw, with one end passing through the threaded hole and the connecting plate and extending to the top of the drive rod.

[0008] The sealant injection device body is equipped with a fixing component for fixing the drive rod.

[0009] The sealant injection device body is provided with a limiting component to support the fixing component.

[0010] Furthermore, the screw and the threaded hole are threadedly connected, the through hole is covered by a telescopic tube, and the telescopic tube and the connecting plate are fixedly connected.

[0011] Furthermore, the through hole is connected to the telescopic tube, and the through hole is connected to the conveying tube.

[0012] Furthermore, the fixing component includes two baffles, which are respectively placed on the left and right sides of the drive rod. A drive plate is fixedly connected to the front of each of the two baffles, and a positioning block is fixedly connected to the opposite side of each of the two drive plates. Four positioning slots are formed on the outer peripheral wall of the drive rod, and the positioning blocks extend into the interior of the positioning slots. Rubber rings are fixedly fitted onto the outer peripheral walls of each of the two positioning blocks.

[0013] Furthermore, the four positioning grooves are circumferentially distributed around the center of the drive rod, the positioning block and the positioning groove are slidably connected, and the rubber ring is fitted with the positioning groove.

[0014] Furthermore, the limiting component includes two mounting plates, both of which are fixedly connected to the top surface of the sealant injection device body. A telescopic rod is fixedly connected to one of the opposite sides of each of the two mounting plates. The telescopic rod is fixedly connected to a baffle. A spring is fitted on the outer peripheral wall of the telescopic rod and is fixedly connected to the baffle and the mounting plate respectively. A moving groove is opened on the top surface of each of the two mounting plates. A moving plate with one end extending into the moving groove is fixedly connected to the bottom surface of each of the two baffles.

[0015] Furthermore, the movable plate is a Z-shaped plate, and the movable plate and the movable groove are slidably connected. The two mounting plates are symmetrically distributed on the left and right sides with the drive rod as the center.

[0016] Furthermore, the telescopic rod consists of a sleeve and a moving rod. One end of the moving rod passes through and extends into the interior of the sleeve. The outer side of the moving rod is fixedly connected to a limiting block located inside the sleeve. A through hole adapted to the moving rod is provided on one side of the sleeve.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0018] 1. The sealant injection device for the construction of the large-scale fracture zone and fracture layer anti-seepage wall uses the threaded connection between the screw and the threaded hole to adjust the height of the drive rod, which is convenient for workers to adjust and improves adjustment efficiency. At the same time, the threaded hole is protected by the telescopic pipe to prevent the sealant from entering the threaded hole, thereby improving the service life of the threaded hole and achieving effective reinforcement of the large-scale fracture zone and fracture layer.

[0019] 2. The sealant injection device for the construction of the large-scale fracture zone and fracture layer anti-seepage wall restricts the drive rod through the cooperation between the positioning block and the positioning groove, thereby improving the stability of the drive rod. The positioning block is supported by the fit between the rubber ring and the positioning groove, thereby improving the stability of the positioning block. At the same time, under the action of the baffle, the positioning block is moved, which facilitates the operation of the staff. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 for Figure 1 Enlarged structural diagram of A in the middle;

[0022] Figure 3 This is an enlarged schematic diagram of the internal structure of the threaded hole in the structure of this utility model;

[0023] Figure 4 This is a top view of the mounting plate on the left side of the structure of this utility model.

[0024] In the diagram: 1. Sealant injection device body; 2. Delivery pipe; 3. Screw; 4. Drive rod; 5. Positioning groove; 6. Mounting plate; 7. Telescopic pipe; 8. Positioning block; 9. Rubber ring; 10. Baffle; 11. Drive plate; 12. Spring; 13. Telescopic rod; 14. Moving groove; 15. Moving plate; 16. Through hole; 17. Threaded hole; 18. Connecting plate; 19. Connecting hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: Please refer to Figures 1 to 4This embodiment of a sealant injection device for the construction of a large-scale fracture zone and fracture layer anti-seepage wall includes a sealant injection device body 1 and a delivery pipe 2 set on the sealant injection device body 1. A screw 3 is fixedly connected to the top surface of the delivery pipe 2.

[0027] The top surface of the screw 3 has a through hole 16, and a drive rod 4 is placed on the top of the screw 3. The bottom surface of the drive rod 4 has a threaded hole 17, and the screw 3 extends into the inside of the threaded hole 17. The top surface of the drive rod 4 has a connecting hole 19, and a connecting plate 18 is rotatably connected to the inside of the connecting hole 19 through a bearing. A telescopic tube 7 is fixedly connected to the top surface of the screw 3, with one end passing through the threaded hole 17 and the connecting plate 18 and extending to the top of the drive rod 4.

[0028] It should be noted that the sealant, delivered through an external conduit, enters the interior of the telescopic pipe 7. The depth of the conduit embedded in the sealant should be controlled below 0.6m, maintaining a height difference of no more than 0.3m between the two sides of the membrane. A large-diameter funnel will be used during pouring, injecting approximately 2.5 cubic meters into the bottom of the membrane in a single operation, ensuring the conduit is embedded at least 0.3m deep in the sealant at the bottom of the trench. The depth of the sealant surface should be measured at at least three locations every half hour to calculate the amount of sealant poured, determine whether the pipe needs to be removed, and confirm the smooth progress of the pouring. Sealant pouring should be continuous, with interruptions not exceeding 45 minutes. Sealant with unsuitable fluidity and workability must not enter the trench. During pouring, a corresponding volume of slurry should be pumped out using a submersible pump based on the amount of sealant poured. The bottom sealing depth is 1m. Once the design height is reached, grouting should be stopped, the conduit removed, and the curing time 24 hours.

[0029] Among them, the screw 3 is threadedly connected to the threaded hole 17, the through hole 16 is covered by the telescopic tube 7, the telescopic tube 7 is fixedly connected to the connecting plate 18, the through hole 16 is connected to the telescopic tube 7, and the through hole 16 is connected to the conveying pipe 2.

[0030] Specifically, grasp the telescopic tube 7, rotate the drive rod 4 to make the drive rod 4 rotate, and move the drive rod 4 through the threaded connection between the drive rod 4 and the screw 3 to adjust the height of the drive rod 4. The sealant enters the interior of the telescopic tube 7 and enters the interior of the delivery tube 2 under the delivery of the through hole 16.

[0031] Example 2: Please refer to Figures 1 to 4In this embodiment, based on Example 1, a fixing component is provided on the body 1 of the sealant injection device. The fixing component includes two baffles 10, which are respectively placed on the left and right sides of the drive rod 4. A drive plate 11 is fixedly connected to the front of each of the two baffles 10. A positioning block 8 is fixedly connected to the opposite side of each of the two drive plates 11. Four positioning grooves 5 are opened on the outer peripheral wall of the drive rod 4. The positioning blocks 8 extend into the interior of the positioning grooves 5. A rubber ring 9 is fixedly fitted on the outer peripheral wall of each of the two positioning blocks 8.

[0032] Among them, the four positioning grooves 5 are distributed in a circle with the center of the drive rod 4 as the center, the positioning block 8 and the positioning groove 5 are slidably connected, and the rubber ring 9 is in contact with the positioning groove 5.

[0033] Specifically, pulling the drive plate 11 causes the baffle 10 to move, which in turn moves the positioning block 8, causing the positioning block 8 to disengage from the positioning groove 5. After adjustment, the positioning plate 8 is reinserted into the positioning groove 5 to restrict the drive rod 4. The drive rod 4 is fixed by the fit between the rubber ring 9 and the positioning groove 5.

[0034] Example 3: Please refer to Figures 1 to 4 In this embodiment, based on Embodiment 1 and Embodiment 2, a limiting component is provided on the sealant injection device body 1. The limiting component includes two mounting plates 6, both of which are fixedly connected to the top surface of the sealant injection device body 1. A telescopic rod 13 is fixedly connected to one of the opposite sides of the two mounting plates 6. The telescopic rod 13 is fixedly connected to the baffle 10. A spring 12 is fitted on the outer peripheral wall of the telescopic rod 13 and is fixedly connected to the baffle 10 and the mounting plate 6 respectively. A moving groove 14 is opened on the top surface of the two mounting plates 6. A moving plate 15 with one end extending into the moving groove 14 is fixedly connected to the bottom surface of the two baffles 10.

[0035] Among them, the movable plate 15 is a Z-shaped plate, and the movable plate 15 and the movable groove 14 are slidably connected. The two mounting plates 6 are symmetrically distributed on the left and right sides with the drive rod 4 as the center. The telescopic rod 13 consists of a sleeve and a moving rod. One end of the moving rod passes through and extends into the interior of the sleeve. A limiting block located inside the sleeve is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is opened on one side of the sleeve.

[0036] Specifically, the positioning block 8 moves to compress the telescopic rod 13 and the spring 12, causing the telescopic rod 13 and the spring 12 to retract. Through the sliding connection between the moving plate 15 and the moving groove 14, the baffle 10 is supported, improving the stability of the baffle 10. After adjustment, the drive plate 11 is released, and the positioning block 8 is pushed back to its original position by the action of the spring 12.

[0037] The working principle of the above embodiments is as follows:

[0038] Pulling the drive plate 11 causes the baffle 10 to move, which in turn moves the positioning block 8, causing it to disengage from the positioning groove 5. This compresses the telescopic rod 13 and the spring 12, causing them to retract. The sliding connection between the moving plate 15 and the moving groove 14 supports the baffle 10, improving its stability. The telescopic tube 7 is then gripped, and the drive rod 4 is rotated. Through the threaded connection between the drive rod 4 and the screw 3, the drive rod 4 moves, allowing its height to be adjusted. After adjustment, the drive plate 11 is released, and the positioning block 8 is reset by the spring 12. The positioning plate 8 is reinserted into the positioning groove 5, restricting the drive rod 4. The rubber ring 9 and the positioning groove 5 are used to fix the drive rod 4. The sealant enters the telescopic tube 7 and is then conveyed through the through hole 16 into the conveying pipe 2.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers, comprising a sealant injection device body (1) and a delivery pipe (2) disposed on the sealant injection device body (1), characterized in that: A screw (3) is fixedly connected to the top surface of the conveying pipe (2); The top surface of the screw (3) is provided with a through hole (16), and a drive rod (4) is placed on the top of the screw (3). The bottom surface of the drive rod (4) is provided with a threaded hole (17). The screw (3) extends into the inside of the threaded hole (17). The top surface of the drive rod (4) is provided with a connecting hole (19). The inside of the connecting hole (19) is rotatably connected to a connecting plate (18) through a bearing. The top surface of the screw (3) is fixedly connected with a telescopic tube (7) that passes through the threaded hole (17) and the connecting plate (18) and extends to the top of the drive rod (4). The sealant injection device body (1) is provided with a fixing component and a limiting component.

2. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 1, characterized in that: The screw (3) and the threaded hole (17) are threaded together, the through hole (16) is covered by the telescopic tube (7), and the telescopic tube (7) and the connecting plate (18) are fixedly connected.

3. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 2, characterized in that: The through hole (16) is connected to the telescopic pipe (7), and the through hole (16) is connected to the conveying pipe (2).

4. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 1, characterized in that: The fixing component includes two baffles (10), which are respectively placed on the left and right sides of the drive rod (4). A drive plate (11) is fixedly connected to the front of each of the two baffles (10), and a positioning block (8) is fixedly connected to the opposite side of each of the two drive plates (11). Four positioning slots (5) are opened on the outer peripheral wall of the drive rod (4), and the positioning blocks (8) extend into the interior of the positioning slots (5). A rubber ring (9) is fixedly fitted on the outer peripheral wall of each of the two positioning blocks (8).

5. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 4, characterized in that: The four positioning grooves (5) are distributed in a circle around the center of the drive rod (4). The positioning block (8) and the positioning groove (5) are slidably connected, and the rubber ring (9) is in contact with the positioning groove (5).

6. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 4, characterized in that: The limiting component includes two mounting plates (6), both of which are fixedly connected to the top surface of the sealant injection device body (1). A telescopic rod (13) is fixedly connected to one of the opposite sides of each of the two mounting plates (6). The telescopic rod (13) is fixedly connected to a baffle (10). A spring (12) is fitted on the outer peripheral wall of the telescopic rod (13) and fixedly connected to the baffle (10) and the mounting plate (6) respectively. A moving groove (14) is opened on the top surface of each of the two mounting plates (6). A moving plate (15) with one end extending into the moving groove (14) is fixedly connected to the bottom surface of each of the two baffles (10).

7. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 6, characterized in that: The movable plate (15) is a Z-shaped plate. The movable plate (15) and the movable groove (14) are slidably connected. The two mounting plates (6) are symmetrically distributed on the left and right with the drive rod (4) as the center.

8. The sealant injection device for the construction of a large-scale seepage barrier wall in fractured zones and fractured layers according to claim 7, characterized in that: The telescopic rod (13) consists of a housing and a moving rod. One end of the moving rod passes through and extends into the interior of the housing. A limiting block located inside the housing is fixedly connected to the outside of the moving rod. A through hole adapted to the moving rod is opened on one side of the housing.

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