A grouting device for subway tunnel reinforcement and leakage stopping

Abstract

The utility model relates to subway tunnel grouting technical field, and disclose a kind of grouting device for subway tunnel consolidation leak stoppage, including bottom plate, the upper surface of the bottom plate is fixedly connected with two push handle, the lower surface of the bottom plate is fixedly connected with four universal wheel, the upper surface of the bottom plate is fixedly connected with electric push rod, the output of the electric push rod is fixedly connected with bearing plate, mobile assembly is provided on the bearing plate, the upper surface of the bottom plate is fixedly connected with agitator tank, the upper end detachably installed of the agitator tank has jar cover, the arc surface of the agitator tank is fixedly connected with feed pipe.The utility model is through the use of cooperation of gear ring and gear in stirring device, multiple stirring work is realized, the uniformity after grouting material stirring is improved, simultaneously, through the setting of scraping component, the condition that grouting material is attached in agitator tank inner wall is reduced, the practicability of grouting device is improved.

Description

Technical Field

[0001] This utility model relates to the field of subway tunnel grouting technology, specifically a grouting device for reinforcing and sealing subway tunnels. Background Technology

[0002] Subway tunnels are located in complex geological environments and are susceptible to concrete cracks due to factors such as groundwater infiltration, structural aging, construction defects, and external loads (such as train vibration and disturbance from surrounding construction). These cracks are caused by shrinkage, temperature stress, or foundation settlement, which can lead to structural cracking and the formation of water seepage channels. Therefore, grouting devices are needed to inject special grout under high pressure to seal cracks, reinforce the structure, and reconstruct the waterproof layer.

[0003] A Chinese patent with publication number CN222207936U discloses a grouting device for reinforcing and sealing leaks in subway tunnels. The key technical features are: a base plate with a support assembly on the front side of its top and a mixing assembly on the rear side of its top. The mixing assembly is connected to a grouting assembly on its front side. During the reinforcement and sealing process of the subway tunnel, by using the support assembly, workers can adjust the support frame on top of the bearing plate to a suitable height by activating an electric actuator. Then, by activating an electric threaded rod, a moving block is moved within a moving groove. This eliminates the need for workers to manually grout the cracks in the subway tunnel, thus improving work efficiency and reducing workload. Furthermore, when grouting at higher locations, auxiliary tools are not required.

[0004] In the grouting operation for reinforcing and sealing leaks in subway tunnels, the uniformity of the grouting material directly affects the crack sealing effect and the quality of structural reinforcement. However, although the mixing structure of the above-mentioned grouting device can achieve the mixing function, the mixing method is relatively simple, making it difficult for the grouting material to be fully mixed. This results in insufficient uniformity of the grouting material after mixing, reducing the practicality of the grouting device.

[0005] Therefore, a grouting device for reinforcing and sealing subway tunnels is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a grouting device for reinforcing and sealing subway tunnels, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a grouting device for reinforcing and sealing subway tunnels, comprising a base plate, two push handles fixedly connected to the upper surface of the base plate, four casters fixedly connected to the lower surface of the base plate, an electric push rod fixedly connected to the upper surface of the base plate, a bearing plate fixedly connected to the output end of the electric push rod, a moving component provided on the bearing plate, a mixing tank fixedly connected to the upper surface of the base plate, a tank cover detachably installed at the upper end of the mixing tank, a feed pipe fixedly connected to the arc surface of the mixing tank, a connecting pipe fixedly connected to the arc surface of the mixing tank, the connecting pipe being connected to the bearing plate through the moving component, a grouting head fixedly connected to one end of the connecting pipe, and a grouting pump installed on the connecting pipe; A stirring device is installed inside a stirring tank. The stirring device includes a motor fixedly connected to the upper surface of the tank lid. A rotating rod is rotatably connected to the surface of the tank lid. The output end of the motor is fixedly connected to one end of the rotating rod. A connecting rod is fixedly connected to the arc surface of the rotating rod. Two rotating shafts are rotatably connected to the surface of the connecting rod. Several stirring rods are fixedly connected to the arc surfaces of the rotating rod and the rotating shafts. The stirring rods are staggered.

[0008] Preferably, a toothed ring is fixedly connected to the inner wall of the can lid, a gear that meshes with the tooth surface of the toothed ring is fixedly connected to one end of the rotating shaft, and scraping components are provided on both sides of the connecting rod.

[0009] Preferably, a set of the scraping components includes a scraper blade fixedly connected to the side wall of the connecting rod, wherein the outer arc surface of the scraper blade blade is in close contact with the inner arc surface of the mixing tank.

[0010] Preferably, a sliding rod is slidably connected to the surface of the first scraper, and a second scraper is fixedly connected to one end of the sliding rod. The second scraper has an I-shaped cross-section.

[0011] Preferably, an electric telescopic rod is fixedly connected to the inner wall of the scraper, and one end of the electric telescopic rod is fixedly connected to the slide rod.

[0012] Preferably, a baffle is fixedly connected to the surface of the slide bar, and the baffle is in close contact with the scraper.

[0013] Preferably, a baffle is installed at the upper end of each of the two scrapers. The baffle is composed of two semi-circular plates joined together. The rotating rod and the rotating shaft are both connected through the baffle, and the size of the baffle is adapted to the size of the mixing tank.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: This invention achieves multiple mixing operations through the combined use of a toothed ring and gears in the mixing device, improving the uniformity of the grouting material after mixing. At the same time, the addition of a scraping component reduces the amount of grouting material adhering to the inner wall of the mixing tank, thus improving the practicality of the grouting device. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the mixing tank of this utility model; Figure 3 This is a schematic diagram of the structure of the stirring device of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A; Figure 5 This is a cross-sectional view of the scraper of this utility model. Figure 6 This utility model Figure 5 Enlarged view of point B.

[0017] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Push handle; 12. Caster wheel; 2. Electric actuator; 3. Bearing plate; 4. Connecting pipe; 5. Grouting head; 6. Grouting pump; 7. Mixing tank; 71. Feed pipe; 72. Tank cover; 8. Mixing device; 81. Motor; 82. Rotating rod; 83. Mixing rod; 84. Connecting rod; 85. Rotating shaft; 86. Gear ring; 87. Gear; 88. Scraping assembly; 881. Scraper one; 882. Electric telescopic rod; 883. Slide rod; 884. Scraper two; 885. Baffle; 89. Baffle. Detailed Implementation

[0018] 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.

[0019] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0020] Example

[0021] Please see Figure 1-6 This utility model provides a technical solution: a grouting device for reinforcing and sealing subway tunnels, including a base plate 1, two push handles 11 fixedly connected to the upper surface of the base plate 1, four casters 12 fixedly connected to the lower surface of the base plate 1, an electric push rod 2 fixedly connected to the upper surface of the base plate 1, a bearing plate 3 fixedly connected to the output end of the electric push rod 2, a moving component provided on the bearing plate 3, a mixing tank 7 fixedly connected to the upper surface of the base plate 1, a tank cover 72 detachably installed on the upper end of the mixing tank 7, a feed pipe 71 fixedly connected to the arc surface of the mixing tank 7, a connecting pipe 4 fixedly connected to the arc surface of the mixing tank 7, the connecting pipe 4 being connected to the bearing plate 3 through the moving component, a grouting head 5 fixedly connected to one end of the connecting pipe 4, and a grouting pump 6 installed on the connecting pipe 4; The moving component includes a drive motor fixedly connected to the side wall of the support plate 3, a screw rotatably connected to the inner wall of the support plate 3, one end of the screw being fixedly connected to the output end of the drive motor 81, a slider threadedly connected to the arc surface of the screw, the slider being slidably connected to the support plate 3, and a connecting pipe 4 being fixedly connected to the slider. In actual use, the user can install a dust cover on the support plate 3 to protect the screw, and the screw needs to be lubricated regularly.

[0022] A stirring device 8 is installed inside the stirring tank 7. The stirring device 8 includes a motor 81 fixedly connected to the upper surface of the tank cover 72. A rotating rod 82 is rotatably connected to the surface of the tank cover 72. The output end of the motor 81 is fixedly connected to one end of the rotating rod 82. A connecting rod 84 is fixedly connected to the arc surface of the rotating rod 82. Two rotating shafts 85 are rotatably connected to the surface of the connecting rod 84. Several stirring rods 83 are fixedly connected to the arc surfaces of the rotating rod 82 and the rotating shafts 85. The stirring rods 83 are staggered. A toothed ring 86 is fixedly connected to the inner wall of the tank cover 72. A gear 87 that meshes with the tooth surface of the toothed ring 86 is fixedly connected to one end of the rotating shaft 85. Scraping components 88 are provided on both sides of the connecting rod 84.

[0023] In this embodiment, the grouting material is first introduced into the mixing tank 7 through the feed pipe 71. At this time, the motor 81 is started, and the motor 81 drives the rotating rod 82 to rotate. Under the action of the rotating rod 82, the connecting rod 84 drives the two rotating shafts 85 to move in a circle along the mixing tank 7. At this time, both the rotating rod 82 and the stirring rod 83 on the rotating shaft 85 can stir the grouting material. When the rotating shaft 85 moves in a circle, the gear 87 drives the rotating shaft 85 to rotate under the action of the gear ring 86, so that the stirring rod 83 on the rotating shaft 85 can stir in a circle while rotating in a circle, which further improves the stirring effect of the grouting material. Then, the stirred grouting material can be extracted by the grouting pump 6 and sprayed into the crack through the connecting pipe 4 and the grouting head 5.

[0024] It should be noted that users can seal the feed pipe 71 themselves using rubber plugs or other means. In actual use, users can install a power module and control switch compatible with the drive motor, grouting pump 6, and electric actuator 2 on the base plate 1. The power module is used to supply power to the drive motor, grouting pump 6, and electric actuator 2, and the control switch is used to control the operation of the three (the specific models of the power module and control switch can be selected according to the actual situation of the drive motor, grouting pump 6, and electric actuator 2, and the parts are electrically connected). The moving component and electric actuator 2 can be used to move the grouting head 5 back and forth and up and down, while the grouting device can be moved left and right by the casters 12, thereby moving the grouting head 5 left and right. This moving component is existing technology, and its specific structure and operation process can be referred to the comparative document, so it will not be described in detail in this article.

[0025] like Figures 2 to 6 As shown, a scraping assembly 88 includes a scraper 881 fixedly connected to the side wall of the connecting rod 84. The outer arc surface of the scraper 881 is in close contact with the inner arc surface of the mixing tank 7. A slide rod 883 is slidably connected to the surface of the scraper 881. A scraper 884 is fixedly connected to one end of the slide rod 883. The cross-section of the scraper 884 is I-shaped. An electric telescopic rod 882 is fixedly connected to the inner wall of the scraper 881. One end of the electric telescopic rod 882 is fixedly connected to the slide rod 883.

[0026] In this embodiment, when the connecting rod 84 rotates with the rotating rod 82, scraper 1 881 drives scraper 2 884 to follow the connecting rod 84 in a circular motion via the sliding rod 883. At this time, scraper 1 881 can scrape off the grouting material attached to the inner wall of the mixing tank 7, while scraper 2 884 scrapes off the grouting material on the bottom inner wall of the mixing tank 7. This avoids the situation where some grouting material is attached to the inner wall of the mixing tank 7, resulting in some grouting material not being fully mixed. At the same time, it can reduce the situation where some grouting material adheres to the inner wall of the mixing tank 7 and solidifies into lumps after the grouting work is completed. When scraper 2 884 is working, the electric telescopic rod 882 is activated. The electric telescopic rod 882 drives scraper 2 884 to telescopically move via the sliding rod 883, so that scraper 2 884 can push the grouting material at the bottom of the mixing tank 7 upward, avoiding the problem of grouting material accumulating at the bottom of the mixing tank 7, resulting in poor mixing effect.

[0027] It should be noted that the electric telescopic pole 882 is equipped with a wireless transmission module, and a PLC controller is installed outside the mixing tank. The electric telescopic pole 882 is controlled to work through the cooperation between the wireless transmission module and the PLC controller.

[0028] like Figures 2 to 6 As shown, a baffle 885 is fixedly connected to the surface of the slide bar 883. The baffle 885 is in close contact with the scraper 881. A baffle 89 is installed on the upper end of both scrapers 881. The baffle 89 is composed of two semi-circular plates spliced ​​together. The rotating rod 82 and the rotating shaft 85 are both connected through the baffle 89. The baffle 89 is adapted to the size of the mixing tank 7.

[0029] In this embodiment, when the electric telescopic rod 882 drives the slide rod 883 to rise and fall, the baffle 885 can block the slide groove on the scraper 881 for sliding of the slider, preventing the grouting material from entering the interior of the scraper 881 through the slide groove. Magnets are provided on the sides of the baffle 89 and the scraper 881 that are close to each other, and the baffle 89 is fixed to the upper end of the scraper 881 by magnetic attraction. At this time, the baffle 89 can protect the toothed ring 86, gear 87 and other parts, preventing the grouting material from splashing onto the toothed ring 86 and other parts when it is being stirred.

[0030] It should be noted that a power module is installed on the surface of one semicircular plate of the baffle 89. The power module is located in the cavity between the baffle 89 and the can lid 72. The power module is connected to the electric telescopic rod 882 by a wire. The wire passes through the scraper 881 to supply power to the electric telescopic rod 882. The baffle 89 is disassembled and installed by magnetic attraction. When the power module needs to be replaced, the can lid 72 is first removed. The can lid 72 drives the motor 81 and the stirring device 8 to move out of the stirring tank 7. At this time, one semicircular plate of the baffle 89 is removed, and then the power module on the other semicircular plate can be replaced or charged.

[0031] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A grouting device for reinforcing and sealing leaks in subway tunnels, characterized in that, include: The base plate (1) has two push handles (11) fixedly connected to its upper surface, four casters (12) fixedly connected to its lower surface, an electric push rod (2) fixedly connected to its upper surface, a bearing plate (3) fixedly connected to the output end of the electric push rod (2), a moving component on the bearing plate (3), a mixing tank (7) fixedly connected to its upper surface, a tank cover (72) detachably installed on the upper end of the mixing tank (7), a feed pipe (71) fixedly connected to the arc surface of the mixing tank (7), a connecting pipe (4) fixedly connected to the arc surface of the mixing tank (7), the connecting pipe (4) connected to the bearing plate (3) through the moving component, a grouting head (5) fixedly connected to one end of the connecting pipe (4), and a grouting pump (6) installed on the connecting pipe (4). A stirring device (8) is installed inside a stirring tank (7). The stirring device (8) includes a motor (81) fixedly connected to the upper surface of a tank cover (72). A rotating rod (82) is rotatably connected to the surface of the tank cover (72). The output end of the motor (81) is fixedly connected to one end of the rotating rod (82). A connecting rod (84) is fixedly connected to the arc surface of the rotating rod (82). Two rotating shafts (85) are rotatably connected to the surface of the connecting rod (84). Several stirring rods (83) are fixedly connected to the arc surfaces of the rotating rod (82) and the rotating shafts (85). The several stirring rods (83) are staggered.

2. The grouting device for reinforcing and sealing leaks in subway tunnels according to claim 1, characterized in that, A toothed ring (86) is fixedly connected to the inner wall of the can lid (72), and a gear (87) that meshes with the tooth surface of the toothed ring (86) is fixedly connected to one end of the rotating shaft (85). Scraping components (88) are provided on both sides of the connecting rod (84).

3. A grouting device for reinforcing and sealing leaks in subway tunnels according to claim 2, characterized in that, A set of the scraping components (88) includes a scraper (881) fixedly connected to the side wall of the connecting rod (84), the outer arc surface of the scraper (881) being in close contact with the inner arc surface of the mixing tank (7).

4. A grouting device for reinforcing and sealing leaks in subway tunnels according to claim 3, characterized in that, The surface of the scraper (881) is slidably connected to a slide rod (883), and one end of the slide rod (883) is fixedly connected to a scraper (884). The cross-section of the scraper (884) is I-shaped.

5. A grouting device for reinforcing and sealing leaks in subway tunnels according to claim 3, characterized in that, An electric telescopic rod (882) is fixedly connected to the inner wall of the scraper (881), and one end of the electric telescopic rod (882) is fixedly connected to the slide rod (883).

6. A grouting device for reinforcing and sealing leaks in subway tunnels according to claim 4, characterized in that, A baffle (885) is fixedly connected to the surface of the slide bar (883), and the baffle (885) is in close contact with the scraper (881).

7. A grouting device for reinforcing and sealing leaks in subway tunnels according to claim 3, characterized in that, Both scrapers (881) are equipped with baffles (89) at their upper ends. The baffles (89) are composed of two semi-circular plates spliced ​​together. The rotating rod (82) and the rotating shaft (85) are both connected through the baffles (89), and the size of the baffles (89) is compatible with that of the mixing tank (7).

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