Tunnel grouting device

Abstract

The utility model discloses a tunnel grouting device which comprises a grouting assembly, a stirring assembly arranged at the top of the grouting assembly and a spray head assembly arranged at the top of the grouting assembly, a plurality of universal wheels are fixedly arranged at the bottom of a bottom plate, an electric control box is fixedly arranged at the top of the bottom plate, a grouting pump is arranged at the top of the bottom plate, and the bottom plate is fixedly provided with a plurality of hydraulic cylinders. A limiting ring is fixedly arranged at the top of the bottom plate, a fixing seat is fixedly arranged at the top of the lifting rod, a universal telescopic pipe is arranged at the top of the fixing seat, a first limiting ring and a second limiting ring are fixedly arranged on the circumferential outer wall of the universal telescopic pipe, and a spray head is arranged on the side face of the universal telescopic pipe. According to the tunnel grouting device, the multiple stirring cutters are arranged, the stirring cutters are stabilized through the fixing columns, so that the effect that grouting materials are stirred evenly is achieved, the height of a spray head can be adjusted, the spray head can be detached according to needs, manual operation can be conducted, and the grouting flexibility is better.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment technology, specifically a tunnel grouting device. Background Technology

[0002] During tunnel excavation and support, cracks, cavities, or weak zones often appear in the surrounding rock. These geological defects not only affect the stability of the tunnel but may also lead to groundwater leakage.

[0003] To address these issues, tunnel grouting devices were developed. These devices utilize high-pressure grouting technology, injecting pre-mixed grouting materials (typically composed of grouting agents, water glass, clay slurry, or other chemical grouts) into fissures and cavities in the surrounding rock of the tunnel via a grouting pump. Under high pressure, the grouting material fully penetrates and fills the target area. After solidification, it significantly improves the strength and stability of the surrounding rock, while simultaneously forming an effective waterproof barrier.

[0004] Although the existing equipment has many beneficial effects, the following problems still exist: uneven mixing before grouting may lead to uneven mixing of grouting materials, which can easily clog the pipes and affect subsequent use, resulting in poor grouting effect. Secondly, the grouting nozzle may not be able to adjust its height according to the construction environment, causing inconvenience in construction. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] 1. Technical problems to be solved:

[0007] To address the aforementioned problems of uneven mixing of grouting materials and inability to adjust the height of the nozzle, this utility model is proposed.

[0008] Therefore, the purpose of this utility model is to provide a tunnel grouting device that achieves uniform mixing of grouting materials by arranging multiple mixing blades in a ring and stabilizing the mixing blades with a fixed column. Secondly, the nozzle can be adjusted in height and can be disassembled for manual operation as needed, making the grouting more flexible.

[0009] 2. Technical Solution:

[0010] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0011] A tunnel grouting device includes a grouting assembly, a mixing assembly disposed on top of the grouting assembly, and a nozzle assembly disposed on top of the grouting assembly;

[0012] The grouting assembly includes a base plate, a plurality of casters fixed to the bottom of the base plate, an electrical control box fixed to the top of the base plate, a grouting pump fixed to the top of the base plate, a limit ring fixed to the top of the base plate, a push rod fixed to the top of the base plate, a plurality of limit blocks fixed to the top of the limit ring, and a plurality of pins fixed to the top of the limit blocks.

[0013] A mixing assembly includes a mixing tank disposed on the top of a base plate. A feed inlet is fixedly provided on the outer circumference of the mixing tank. A top cover is provided on the top of the mixing tank. A motor is disposed on the top of the top cover. A main shaft is provided at the output end of the motor. Multiple mixing blades are fixedly provided on the outer circumference of the main shaft. The electrical control box is electrically connected to the grouting pump and the motor.

[0014] The nozzle assembly includes a lifting seat disposed on the top of the base plate, a lifting rod disposed on the top of the lifting seat, a fixed seat fixedly disposed on the top of the lifting rod, a universal telescopic tube disposed on the top of the fixed seat, a limiting ring one and a limiting ring two fixedly disposed on the outer circumference of the universal telescopic tube, a nozzle disposed on the side of the universal telescopic tube, and a fixed top cover disposed on the top of the fixed seat that snaps into the universal telescopic tube.

[0015] In a preferred embodiment of the tunnel grouting device of this utility model, the top of the base plate is provided with a plurality of holes, the size and number of which match the size and number of the pins.

[0016] In a preferred embodiment of the tunnel grouting device of this utility model, a baffle is fixed between the two ends of the push rod, and the size of the baffle matches that of the push rod.

[0017] In a preferred embodiment of the tunnel grouting device of this utility model, the pin includes a knob, a rotating column that passes through the hole is fixedly provided at the bottom of the knob, and a snap-fit ​​strip is fixedly provided at the bottom of the rotating column.

[0018] In a preferred embodiment of the tunnel grouting device of this utility model, a fixed column is fixedly provided between the plurality of mixing blades, and an opening is provided at the top of the mixing blade, the size of which matches the fixed column.

[0019] In a preferred embodiment of the tunnel grouting device of this utility model, the outer circumferential wall of the universal telescopic pipe is fixed with a plurality of snap-fit ​​blocks, and the inner cavity of the nozzle is provided with grooves and sliding grooves that match the snap-fit ​​blocks.

[0020] In a preferred embodiment of the tunnel grouting device of this utility model, a first locking block is fixedly provided on one side of the fixed seat, a first fixing plate is fixedly provided on the other side of the fixed seat, a second locking block is fixedly provided on one side of the fixed top cover, and a second fixing plate is fixedly provided on the other side of the fixed top cover.

[0021] 3. Beneficial effects:

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] This type of tunnel grouting device uses multiple mixing blades arranged in a ring and fixed with a fixed column to stabilize the mixing blades. When the motor starts, it drives the main shaft to rotate along with the mixing blades and the fixed column, which makes the grouting material in the mixing tank evenly mixed.

[0024] This type of tunnel grouting device adjusts the height of the nozzle fixed by the fixed cover and the fixed seat by adjusting the lifting rod that cooperates with the lifting seat. The nozzle can be adjusted in height and can also be disassembled for manual operation as needed, making the grouting more flexible. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0026] Figure 1 This is a schematic diagram of the overall structure of a tunnel grouting device according to the present invention;

[0027] Figure 2 This is a schematic diagram of the second overall structure of a tunnel grouting device according to the present invention;

[0028] Figure 3 This is a schematic diagram of the third integral structure of a tunnel grouting device according to the present invention;

[0029] Figure 4 This is a schematic diagram of the fourth overall structure of a tunnel grouting device according to the present invention;

[0030] Figure 5 This is a schematic diagram of the limiting component structure of a tunnel grouting device according to the present invention.

[0031] The following are the labeling instructions in the diagram: 100, Grouting assembly; 110, Base plate; 120, Casters; 130, Electrical control box; 140, Grouting pump; 150, Limit ring; 160, Push rod; 170, Limit block; 180, Pin; 181, Knob; 182, Rotating column; 183, Connecting strip; 200, Mixing assembly; 210, Mixing tank; 220, Feed inlet; 230, Top cover; 240, Motor; 250, Main shaft; 260, Mixing blade; 270, Fixed column; 300, Nozzle assembly; 310, Lifting seat; 320, Lifting rod; 330, Fixed seat; 340, Universal telescopic tube; 350, Limit ring one; 360, Limit ring two; 370, Connecting block; 380, Nozzle; 390, Fixed top cover. Detailed Implementation

[0032] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0033] This utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of this utility model. In actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0034] The orientation or positional relationship indicated in the terminology is based on the orientation or positional relationship shown in the accompanying drawings and is only for the convenience of describing the present invention and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0035] The term "connection method" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0037] This utility model provides an overall structural schematic diagram of an embodiment of a tunnel grouting device, including:

[0038] Please see Figures 1-5A tunnel grouting device according to this embodiment includes a grouting assembly 100, a mixing assembly 200 disposed on the top of the grouting assembly 100, and a nozzle assembly 300 disposed on the top of the grouting assembly 100.

[0039] The grouting assembly 100 includes a base plate 110, with multiple casters 120 fixedly connected to the bottom of the base plate 110 by bolts, and an electrical control box 130 fixedly connected to the top of the base plate 110 by screws.

[0040] In some embodiments, the electrical control box 130 includes a frequency converter, a PLC (programmable logic controller), a switching power supply, an isolation transformer, a current transformer, a time relay, a circuit breaker, and a fuse. Therefore, the electrical control box 130 can control the grouting pump 140 and the motor 240.

[0041] A grouting pump 140 is bolted to the top of the base plate 110. A limit ring 150 is welded to the top of the base plate 110. A push rod 160 is fixedly connected to the top of the base plate 110. Multiple limit blocks 170 are snapped to the top of the limit ring 150. Multiple pins 180 are sleeved on the top of the limit blocks 170.

[0042] The mixing assembly 200 includes a mixing tank 210 disposed on the top of the base plate 110. A feed inlet 220 is welded to the outer circumference of the mixing tank 210. A top cover 230 is fitted on the top of the mixing tank 210. A motor 240 is installed on the top of the top cover 230. A main shaft 250 is rotatably connected to the output end of the motor 240. Multiple mixing blades 260 are fixedly welded to the outer circumference of the main shaft 250. The electrical output end of the electrical control box 130 is electrically connected to the electrical input end of the grouting pump 140 and the motor 240.

[0043] The pipe connected to the grouting pump 140 can be a telescopic corrugated pipe, which facilitates the lifting and lowering of the nozzle assembly 300 and increases the durability of the nozzle assembly 300.

[0044] The nozzle assembly 300 includes a lifting seat 310 disposed on the top of the base plate 110. A lifting rod 320 is sleeved on the top of the lifting seat 310. A fixing seat 330 is fixedly connected to the top of the lifting rod 320. A universal telescopic tube 340 is snapped to the top of the fixing seat 330. A limit ring 350 and a limit ring 360 are fixedly connected to the outer circumference of the universal telescopic tube 340. A nozzle 380 is snapped to the side of the universal telescopic tube 340. A fixing cover 390 is snapped to the top of the fixing seat 330 and the universal telescopic tube 340.

[0045] It is worth noting that, in order to facilitate the insertion of the base plate 110 and the pin 180, the top of the base plate 110 is provided with multiple holes, the size and number of which match the size and number of the pin 180.

[0046] Next, in order to improve the stability of the push rod 160, a baffle is fixedly connected between the two ends of the push rod 160, and the size of the baffle matches that of the push rod 160.

[0047] Meanwhile, to facilitate the disassembly of the pin 180, specifically, the pin 180 includes a knob 181, the bottom of the knob 181 is fixedly connected to a rotating post 182 with a through hole, and the bottom of the rotating post 182 is fixedly connected to a snap-fit ​​strip 183.

[0048] Furthermore, in order to make the stirring blade 260 more stable and improve the stirring effect, a fixing post 270 is welded between multiple stirring blades 260, and an opening is provided on the top of the stirring blade 260, the size of which matches the fixing post 270.

[0049] When it is necessary to mix the grouting material, the grouting material is first poured into the mixing tank 210 through the feed port 220 on the outer circumference of the mixing tank 210. Then, the motor 240 is started to drive the main shaft 250 at the bottom, which carries multiple mixing blades 260 and fixed column 270 to mix the grouting material. The fixed column 270 not only ensures the stability of the multiple mixing blades 260, but also helps to mix the grouting material more evenly. Then, the grouting material is pumped into the nozzle assembly 300 by the grouting pump 140.

[0050] It is worth noting that, in order to make the universal telescopic tube 340 fit into the nozzle 380, specifically, multiple locking blocks 370 are fixedly connected to the outer circumference of the universal telescopic tube 340. The inner cavity of the nozzle 380 is provided with slots and grooves that match the locking blocks 370. When the locking block 370 enters the slot, the nozzle 380 is rotated to make the locking block 370 enter the groove, so that the two can be fixed together.

[0051] Finally, to facilitate the snap-fit ​​between the fixing base 330 and the fixing cover 390, specifically, a locking block 1 is fixedly connected to one side of the fixing base 330, a fixing plate 1 is fixedly connected to the other side of the fixing base 330, a locking block 2 is fixedly connected to one side of the fixing cover 390, and a fixing plate 2 is fixedly connected to the other side of the fixing cover 390.

[0052] When it is necessary to raise or lower or disassemble the nozzle 380, the fixing pin on the outer circumference of the lifting rod 320 can be pulled out, and the lifting rod 320 can be raised to align with the hole of the lifting seat 310. Then, the fixing pin can be inserted to complete the raising and lowering process. When disassembling, the bolts connecting the fixing seat 330 and the fixing cover 390 can be unscrewed to separate the first locking block, the first fixing plate, the second locking block, and the second fixing plate, making it easy to remove the universal telescopic tube 340 from the fixing seat 330. At the same time, the nozzle 380 is rotated and locked with the locking block 370 on the universal telescopic tube 340 through the slot and the sliding groove. This not only facilitates the disassembly of the nozzle 380, but also allows the nozzle 380 to be removed and used directly when a larger grouting operation is required, thereby increasing the grouting volume and improving the construction efficiency. This allows the nozzle assembly 300 to be used with or without the nozzle 380 in the construction environment, expanding the application scenarios of the grouting device.

[0053] In addition, the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0054] The device or equipment models mentioned in this article may be as follows:

[0055] Motor 240: Y160M;

[0056] Grouting pump 140: ZBQ-12 / 2.5.

[0057] Combination Figures 1-5 The tunnel grouting device of this embodiment is used in the following specific process:

[0058] 1. The grouting pump 140 of the grouting assembly draws the mixed grouting material from the mixing tank 210 of the mixing assembly. The mixing tank 210 is driven by a motor 240 at the top to rotate the main shaft 250 and multiple mixing blades 260 clockwise or counterclockwise, achieving uniform mixing of the grouting material. After mixing is completed, the grouting pump 140 delivers the grouting material to the nozzle assembly 300 through pipelines.

[0059] 2. The lifting seat 310 of the nozzle assembly 300 moves up and down via the lifting rod 320 to adjust the height of the nozzle 380. The universal telescopic tube 340 is secured to the fixed seat 330 and the fixed top cover 390 by limiting ring one 350 and limiting ring two 360. At the same time, the nozzle 380 is fixed to the universal telescopic tube 340 by the slot, ensuring the stability and accuracy of the nozzle 380 during grouting.

[0060] 3. The entire grouting device is moved by multiple casters 120 on the bottom of the base plate 110, facilitating grouting operations at different construction locations. When it is necessary to fix the mixing tank 210, the rotating column 182 is rotated by the knob 181 of the pin 180, causing the locking strip 183 to be inserted into the hole at the top of the base plate 110 and rotated to fix it, thus achieving a stable fixation of the mixing tank 210. At the same time, the push rod 160 and the baffles at both ends provide additional support and stability, ensuring the safe conduct of the grouting operation.

[0061] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A tunnel grouting device, characterized in that, It includes a grouting assembly (100), a mixing assembly (200) disposed on top of the grouting assembly (100), and a nozzle assembly (300) disposed on top of the grouting assembly (100); A grouting assembly (100) includes a base plate (110), a plurality of casters (120) fixedly mounted on the bottom of the base plate (110), an electrical control box (130) fixedly mounted on the top of the base plate (110), a grouting pump (140) mounted on the top of the base plate (110), a limiting ring (150) fixedly mounted on the top of the base plate (110), a push rod (160) fixedly mounted on the top of the base plate (110), a plurality of limiting blocks (170) mounted on the top of the limiting ring (150), and a plurality of pins (180) mounted on the top of the limiting blocks (170). A mixing assembly (200) includes a mixing tank (210) disposed on the top of a base plate (110). A feed inlet (220) is fixedly provided on the outer circumference of the mixing tank (210). A top cover (230) is provided on the top of the mixing tank (210). A motor (240) is provided on the top of the top cover (230). A main shaft (250) is provided at the output end of the motor (240). A plurality of mixing blades (260) are fixedly provided on the outer circumference of the main shaft (250). An electrical control box (130) is electrically connected to a grouting pump (140) and a motor (240). The nozzle assembly (300) includes a lifting seat (310) disposed on the top of the base plate (110), a lifting rod (320) disposed on the top of the lifting seat (310), a fixing seat (330) fixedly disposed on the top of the lifting rod (320), a universal telescopic tube (340) disposed on the top of the fixing seat (330), a limiting ring one (350) and a limiting ring two (360) fixedly disposed on the outer circumference of the universal telescopic tube (340), a nozzle (380) disposed on the side of the universal telescopic tube (340), and a fixing cover (390) that snaps into the universal telescopic tube (340) on the top of the fixing seat (330).

2. The tunnel grouting device according to claim 1, characterized in that, The top of the base plate (110) has a plurality of holes, the size and number of which match the size and number of the pins (180).

3. The tunnel grouting device according to claim 2, characterized in that, A baffle is fixed between the two ends of the push rod (160), and the size of the baffle matches that of the push rod (160).

4. The tunnel grouting device according to claim 3, characterized in that, The pin (180) includes a knob (181), the bottom of which is fixedly provided with a rotating post (182) that passes through the hole, and the bottom of the rotating post (182) is fixedly provided with a snap-fit ​​strip (183).

5. The tunnel grouting device according to claim 4, characterized in that, A fixing post (270) is fixed between the plurality of stirring blades (260), and an opening is provided on the top of each stirring blade (260), the size of which matches the fixing post (270).

6. The tunnel grouting device according to claim 5, characterized in that, The circumferential telescopic tube (340) has multiple snap-fit ​​blocks (370) fixedly installed on its outer circumference, and the nozzle (380) has slots and grooves that match the snap-fit ​​blocks (370) in its inner cavity.

7. The tunnel grouting device according to claim 6, characterized in that, A first locking block is fixed on one side of the fixing seat (330), a first fixing plate is fixed on the other side of the fixing seat (330), a second locking block is fixed on one side of the fixing cover (390), and a second fixing plate is fixed on the other side of the fixing cover (390).

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