Auxiliary equipment for preventing grout leakage in tunnel construction

Abstract

The present invention belongs to the field of tunnel construction, specifically a kind of auxiliary equipment for preventing slurry leakage for tunnel construction, including an extrusion box, and the ends of several groups of extrusion boxes are distributed on the outside of the tunnel plugging plate. The top of the extrusion box is set to be open, and a servo motor is fixedly installed on the inside of the extrusion box. The transmission end of the servo motor is fixedly installed. An expansion tube is wound around the outside of the winding wheel. The expansion tube is made of elastic material. The outside of one end of the expansion tube away from the winding wheel is fixedly connected to the outside of the end of the extrusion box. Two groups of air pumps are fixedly installed on the inside of the extrusion box. Through this arrangement, the end of the expansion tube can be extended outward infinitely, and the end of the elastic expansion tube is flat before it is stretched, so that the expansion tube can penetrate into various gaps, thereby sealing the gap between the plugging plate and the tunnel wall, greatly reducing the problem of slurry leakage.

Description

Technical Field

[0001] The invention belongs to the field of tunnel construction, in particular to an auxiliary device for tunnel construction capable of preventing slurry leakage. Background Art

[0002] With the development of society, transportation is becoming more and more convenient. In order to ensure transportation in mountainous areas, tunnels often need to be dug. Tunnel excavation generally requires the use of special tunnel machines.

[0003] After the tunnel machine has completed excavation, two sets of tunnel plugging plates are needed to seal the inner wall of the tunnel that needs grouting. Then grouting work is carried out in the area. After the concrete solidifies, the tunnel machine is allowed to sink to complete the pouring of the inner wall of the tunnel.

[0004] However, the inner wall of the tunnel is often uneven and prone to stones, which leads to gaps between the plug plate and the tunnel wall, making it easy for leakage to occur during the grouting process.

[0005] To this end, the present invention provides an auxiliary equipment for tunnel construction that can prevent slurry leakage. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: the auxiliary equipment for preventing slurry leakage for tunnel construction described in the present invention includes an extrusion box, and the ends of several groups of extrusion boxes are distributed on the outside of the tunnel plugging plate. The top of the extrusion box is set to be open, and a servo motor is fixedly installed on the inside of the extrusion box. The transmission end of the servo motor is fixedly installed with a winding wheel, and an expansion tube is wound around the outside of the winding wheel. The expansion tube is made of elastic material, and the outside of the end of the expansion tube away from the winding wheel is fixedly connected to the outside of the end of the extrusion box. Two groups of air pumps are fixedly installed on the inside of the extrusion box. Through this arrangement, the end of the expansion tube can be extended outward infinitely, and the end of the elastic expansion tube is flat before it is stretched, so that the expansion tube can penetrate into various gaps, thereby sealing the gap between the plugging plate and the tunnel wall, greatly reducing the problem of slurry leakage.

[0008] Preferably, two groups of mud pumps are fixedly installed on the inner side of the extrusion box, and two groups of nozzles are fixedly installed on the inner side of the extrusion box near the top. A transmission pipe is fixedly connected between the nozzle and the mud pump. During operation, after the expansion tube is extended, the cement concrete is filled into the outward extending expansion tube through the transmission pipe and the nozzle by the mud pump, and then waited for it to solidify. Through this arrangement, the soft expansion tube can be turned into a hard pipe after the extension and filling are completed, so that it can withstand the pressure of the inner mud gushing outward, thereby further improving the function of preventing leakage.

[0009] Preferably, a positioning ring is fixedly installed on the inner side of the extrusion box, and the positioning ring is located above the middle of the winding wheel, and an electric clamp is fixedly installed on the inner side of the extrusion box, and the electric clamp is located on the outside of the expansion tube, and two sets of electric telescopic rods are fixedly installed on the bottom end of the electric clamp, and a cutting assembly is provided on the inner side of the extrusion box, and a card slot is provided on the outside of the top end of the extrusion box, and a clamping ring is provided on the outside of the card slot. When a work is completed and the plugging plate is recovered, the electric clamp can be started to fix the expansion tube inside the extrusion box, and then the cutting assembly is started to cut the expansion tube above the electric clamp. After that, the staff can remove the solidified expansion tube part above, and then start the electric telescopic rod to push the expansion tube upward, so that the unused expansion tube part extends out of the extrusion box. The operator grabs the end of the expansion tube and flips it over, and then connects the flipped part with the card slot, and puts on the clamping ring to fix it. Through this arrangement, the equipment can be recycled, which facilitates the subsequent use process.

[0010] Preferably, the cutting assembly includes a cutting shear, a movable groove is opened on one side of the extrusion box, the cutting shear is located on the inner side of the movable groove near the bottom end, the inner side of the movable groove is rotatably connected to a centralizing wheel, one end of the centralizing wheel is fixedly installed with a motor, and connecting ropes are connected between the two inner ends of the cutting shear and the centralizing wheel. The starting motor drives the centralizing wheel to rotate, and the cutting shear is driven to close through the two connecting ropes, so that the expansion tube can be cut. After that, the cutting shear will return to the open state under the action of its own spring, waiting for the next cutting, thereby achieving a convenient cutting effect.

[0011] Preferably, a through slot is provided at the top of the cutting shears, a restraining rod is fixedly installed on the inner side of the movable slot, the restraining rod passes through the through slot, and a disc is fixedly installed on the top of the restraining rod, and the arrangement of the restraining rod and the through slot allows the cutting shears to rotate upward as a whole, so that the upward pushing process of the electric clamp will not be blocked, and there is no need to retract the cutting shears inward after cutting the expansion tube, thereby reducing operation, and the restraining rod for normal opening and closing movement can slide freely in the through slot, and through this arrangement, the cutting shears can be well confined in the movable slot, and can perform rotation and opening and closing movements at the same time, and will not deviate from the original position due to rotation and opening and closing.

[0012] Preferably, a servo motor 2 is fixedly mounted on the other end of the cutting shears, and a vibration plate is fixedly connected to the output end of the servo motor 2, and the vibration plate is eccentrically connected to the output end of the servo motor 2. During the cutting process, the servo motor 2 is started to drive the vibration plate to move. Since the servo motor 2 and the vibration plate are eccentrically connected, the vibration plate will not rotate but will vibrate violently, thereby effectively increasing the cutting effect and reducing the problem of difficulty in cutting the expansion tube due to the vibration plate not being sharp enough after long-term use.

[0013] Preferably, two groups of receiving grooves are provided on the inner side of the top of the extrusion box, and the two groups of receiving grooves are symmetrically arranged. A filling bag is fixedly installed on the inner side of the receiving groove, and the bottom end of the filling bag is open. A transmission pump is fixedly connected to the bottom end of the filling bag. In conjunction with the arrangement of the receiving groove and the filling bag, when cement concrete is started to be filled into the expansion tube, the transmission pump is started. The transmission pump can fill air into the filling bag or suck out the air. Air is first flushed into the filling bag to be squeezed outward into the receiving groove, and then the outlet of the extrusion box can be blocked. In conjunction with the elasticity of the filling bag and the inflation setting, the sealing of the filling can be effectively improved. In conjunction with this arrangement, it is difficult for cement concrete to enter the extrusion box during the filling process, so that the equipment can be used cleanly for a long time.

[0014] Preferably, several groups of friction blocks are fixedly installed at the outlet end of the storage groove, the ends of the friction blocks are flat, and an elastic strip is fixedly connected between the inner side of the filling bag and the output end of the transmission pump. In conjunction with the setting of the friction blocks, when the filling is completed, the transmission pump is started to absorb the air inside the filling bag, and at the same time, in conjunction with the connection of the elastic strip, the filling bag can smoothly enter the storage groove. At this time, in conjunction with the setting of the friction blocks, the cement concrete on the outside of the filling bag can be cleaned, thereby reducing the cement attached to the outside and less affecting the subsequent use process.

[0015] Preferably, the expansion tube comprises a rubber tube, and a plurality of groups of evenly arranged scales are fixedly mounted on the outer side of the rubber tube. The scales are made of elastic material, and adjacent scales are pressed against each other. The scales pressed against each other can increase the strength of the expansion tube. At the same time, since the scales are not connected to each other, the expansion tube can still be curled and stretched, thereby increasing the friction resistance of the outer side and reducing the friction breakage of the expansion tube, while not affecting the normal use of the expansion tube.

[0016] Preferably, a plurality of groups of extension strips are fixedly installed on the inner side of the rubber tube. The extension strips are arranged in an arc shape and are made of elastic material. With the arrangement of the extension strips, the concrete solidified on the inner side can grasp the extension strips, making the solidified and hardened expansion tube more integrated, further improving the strength of the expansion tube and the effect of preventing leakage of slurry, and the elastic extension strips can also be curled without hindering the normal operation of the expansion tube.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. The present invention relates to an auxiliary device for preventing grout leakage for tunnel construction. Through the extrusion box installed on the outside of the plugging plate, the expansion tube is pushed outward before grouting, and the servo motor is started to rotate at a uniform speed at the same time, so that the expansion tube is released at a uniform speed. Through this arrangement, the end of the expansion tube can be extended outward infinitely, and the end of the elastic expansion tube is flat before it is stretched, so that the expansion tube can penetrate into various gaps, thereby sealing the gap between the plugging plate and the tunnel wall, greatly reducing the problem of grout leakage.

[0019] 2. The present invention provides an auxiliary device for preventing slurry leakage for tunnel construction. Through the arrangement of a nozzle and a slurry pump, after the expansion tube is extended, cement concrete is filled into the outwardly extending expansion tube through a transmission pipe and a nozzle by the slurry pump, and then waited for it to solidify. Through this arrangement, the soft expansion tube can be transformed into a hard pipe after the extension and filling is completed, thereby being able to withstand the pressure of the internal slurry gushing outward, thereby further improving the function of preventing slurry leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 is a perspective view of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 is a cross-sectional view of the movable groove in the extrusion box of the present invention;

[0024] Figure 4 is a top cross-sectional view of the squeeze box of the present invention;

[0025] Figure 5 is a cross-sectional view of the expansion tube of the present invention;

[0026] In the figure: 1. Squeeze box; 2. Air pump; 3. Mud pump; 4. Nozzle; 5. Transmission pipe; 6. Expansion pipe; 7. Moving slot; 9. Electric telescopic rod; 10. Electric clamp; 11. Winding wheel; 12. Servo motor 1; 13. Centralizing wheel; 14. Connecting rope; 15. Cutting shears; 16. Through slot; 17. Binding rod; 18. Vibrating plate; 19. Servo motor 2; 20. Extension strip; 21. Card slot; 22. Filling bag; 23. Transmission pump; 24. Friction block; 25. Rubber tube; 26. Scale; 27. Storage slot. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0028] Example 1

[0029] like Figures 1 to 2 As shown, an auxiliary equipment for preventing slurry leakage for tunnel construction described in an embodiment of the present invention includes an extrusion box 1, and the ends of several groups of extrusion boxes 1 are distributed on the outside of the tunnel plugging plate. The top of the extrusion box 1 is set to be open, and a servo motor 12 is fixedly installed on the inside of the extrusion box 1. The transmission end of the servo motor 12 is fixedly installed with a winding wheel 11, and an expansion tube 6 is wound around the outside of the winding wheel 11. The expansion tube 6 is set with an elastic material, and the outside of the end of the expansion tube 6 away from the winding wheel 11 is fixedly connected to the outside of the end of the extrusion box 1. Two groups of air pumps 2 are fixedly installed on the inside of the extrusion box 1. When working, when the tunnel plugging plate blocks the front and back of the tunnel wall to be constructed, grouting work is carried out, but the inner wall of the tunnel It is often uneven and prone to stones, which leads to gaps between the plugging plate and the tunnel wall, making it easy for leakage to occur during grouting. By installing an extrusion box 1 on the outside of the plugging plate, before grouting, the air pump 2 on the inside is started to deliver air pressure inward. At the same time, since one end of the expansion tube 6 is flipped inside and outside and fixed to the outside of the extrusion box 1, the air pressure on the inside pushes the expansion tube 6 outward, and the servo motor 12 is started to rotate at a uniform speed, so that the expansion tube 6 is released at a uniform speed. Through this arrangement, the end of the expansion tube 6 can be extended outward infinitely, and the end of the elastic expansion tube 6 is flat before it is stretched, so that the expansion tube 6 can penetrate into various gaps, thereby sealing the gap between the plugging plate and the tunnel wall, greatly reducing the problem of leakage.

[0030] like Figures 1 to 2 As shown, two groups of mud pumps 3 are fixedly installed on the inner side of the extrusion box 1, and two groups of nozzles 4 are fixedly installed on the inner side of the extrusion box 1 near the top. A transmission pipe 5 is fixedly connected between the nozzle 4 and the mud pump 3. During operation, after the expansion pipe 6 is extended, the cement concrete is filled into the outward extending expansion pipe 6 through the transmission pipe 5 and the nozzle 4 by the mud pump 3, and then waited for it to solidify. Through this arrangement, the soft expansion pipe 6 can be turned into a hard pipe after the extension and filling is completed, so that it can withstand the pressure of the inner mud gushing out, thereby further improving the function of preventing leakage.

[0031] like Figures 1 to 2As shown, a positioning ring is fixedly installed on the inner side of the extrusion box 1, and the positioning ring is located above the middle of the winding wheel 11. An electric clamp 10 is fixedly installed on the inner side of the extrusion box 1, and the electric clamp 10 is located on the outer side of the expansion tube 6. Two sets of electric telescopic rods 9 are fixedly installed on the bottom end of the electric clamp 10. A cutting component is provided on the inner side of the extrusion box 1, and a card slot 21 is provided on the outer side of the top of the extrusion box 1. A snap ring is provided on the outer side of the card slot 21. When working, when a work is completed and the plugging plate is recycled, the electric The clamp 10 fixes the expansion tube 6 inside the extrusion box 1, and then the cutting component is started to cut the expansion tube 6 above the electric clamp 10. After that, the staff can remove the solidified expansion tube 6 part above, and then start the electric telescopic rod 9 to push the expansion tube 6 upward, so that the unused expansion tube 6 part extends out of the extrusion box 1. The operator grabs the end of the expansion tube 6 and flips it over, and then connects the flipped part to the slot 21 and puts on a snap ring to fix it. Through this arrangement, the equipment can be recycled, which facilitates the subsequent use process.

[0032] like Figures 2 to 3 As shown, the cutting assembly includes a cutting shear 15, a movable groove 7 is opened on one side of the extrusion box 1, and the cutting shear 15 is located on the inner side of the movable groove 7 near the bottom end, and the inner side of the movable groove 7 is rotatably connected to the centralizing wheel 13, and a motor is fixedly installed at one end of the centralizing wheel 13. Connecting ropes 14 are connected between the inner ends of the cutting shear 15 and the centralizing wheel 13. When working, the motor is started to drive the centralizing wheel 13 to rotate, and the cutting shear 15 is driven to close through the two connecting ropes 14, so that the expansion tube 6 can be cut. After that, the cutting shear 15 will return to the open state under the action of its own spring, waiting for the next cutting, thereby achieving a convenient cutting effect.

[0033] like Figure 3 As shown, a through groove 16 is provided at the top of the cutting shear 15, and a restraining rod 17 is fixedly installed on the inner side of the movable groove 7. The restraining rod 17 passes through the through groove 16, and a disc is fixedly installed on the top of the restraining rod 17. When working, the setting of the restraining rod 17 and the through groove 16 allows the cutting shear 15 to rotate upward as a whole, so that the upper pushing process of the electric clamp 10 will not be blocked, so that there is no need to retract the cutting shear 15 inward after cutting the expansion tube 6, thereby reducing operation, and the restraining rod 17 for normal opening and closing movement can slide freely in the through groove 16, and through this setting, the cutting shear 15 can be well confined in the movable groove 7, and can rotate and open and close at the same time, and will not be separated from the original position due to rotation and opening and closing.

[0034] like Figure 3As shown, a servo motor 2 19 is fixedly installed at the other end of the cutting shear 15, and a vibration plate 18 is fixedly connected to the output end of the servo motor 2 19, and the vibration plate 18 is eccentrically connected to the output end of the servo motor 2 19. During operation, during the cutting process, the servo motor 2 19 is started to drive the vibration plate 18 to move. Since the servo motor 2 19 and the vibration plate 18 are eccentrically connected, the vibration plate 18 does not rotate but vibrates violently, thereby effectively increasing the cutting effect and reducing the problem of the vibration plate 18 being not sharp enough after long-term use, making it difficult to cut the expansion tube 6.

[0035] like Figure 4 As shown, two groups of receiving grooves 27 are provided on the inner side of the top of the extrusion box 1, and the two groups of receiving grooves 27 are symmetrically arranged. A filling bag 22 is fixedly installed on the inner side of the receiving groove 27, and the bottom end of the filling bag 22 is open. The bottom end of the filling bag 22 is fixedly connected to the transmission pump 23. When working, in conjunction with the arrangement of the receiving groove 27 and the filling bag 22, when cement concrete is started to be filled into the expansion tube 6, the transmission pump 23 is started. The transmission pump 23 can fill air into the filling bag 22 or suck out the air. First, air is flushed into the filling bag 22 so that it is squeezed out of the receiving groove 27, and then the outlet of the extrusion box 1 can be blocked. In conjunction with the elasticity of the filling bag 22 and the inflation setting, the sealing of the filling can be effectively improved. In conjunction with this arrangement, it is difficult for cement concrete in the filling process to enter the extrusion box 1, so that the equipment can be used cleanly for a long time.

[0036] like Figure 4 As shown, several groups of friction blocks 24 are fixedly installed at the outlet end of the receiving groove 27. The end of the friction block 24 is flat, and an elastic strip is fixedly connected between the inner side of the filling capsule 22 and the output end of the transmission pump 23. During operation, in conjunction with the setting of the friction block 24, when the filling is completed, the transmission pump 23 is started to absorb the air inside the filling capsule 22, and at the same time, in conjunction with the connection of the elastic strip, the filling capsule 22 can smoothly enter the receiving groove 27. At this time, in conjunction with the setting of the friction block 24, the cement concrete on the outside of the filling capsule 22 can be cleaned, thereby reducing the cement attached to the outside and less affecting the subsequent use process.

[0037] Example 2

[0038] like Figure 5As shown in the comparative example 1, another embodiment of the present invention is: the expansion tube 6 includes a rubber tube 25, and a plurality of groups of evenly arranged scales 26 are fixedly installed on the outside of the rubber tube 25. The scales 26 are set with an elastic material, and the adjacent scales 26 are pressed against each other. During operation, the scales 26 pressed against each other can increase the strength of the expansion tube 6. At the same time, since the scales 26 are not connected to each other, the expansion tube 6 can still be curled and stretched, thereby increasing the friction resistance of the outer side and reducing the friction breakage of the expansion tube 6, while not affecting the normal use of the expansion tube 6.

[0039] Several groups of extension strips 20 are fixedly installed on the inner side of the rubber tube 25. The extension strips 20 are arranged in an arc shape and are made of elastic material. During operation, the setting of the extension strips 20 allows the concrete solidified on the inner side to grab the extension strips 20, making the solidified and hardened expansion tube 6 more integrated, further improving the strength of the expansion tube 6 and the effect of preventing leakage of slurry. The elastic extension strips 20 can also be curled without hindering the normal operation of the expansion tube 6.

[0040] During operation, after the tunnel plugging plate blocks the front and back of the tunnel wall to be constructed, grouting work is carried out. However, the inner wall of the tunnel is often uneven and prone to stones, resulting in gaps between the plugging plate and the tunnel wall, making it easy for leakage to occur during the grouting process. Through the extrusion box 1 installed on the outside of the plugging plate, before grouting, the air pump 2 on the inside is started to deliver air pressure inward. At the same time, since one end of the expansion tube 6 is flipped inside and outside and fixed to the outside of the extrusion box 1, the air pressure on the inside pushes the expansion tube 6 outward, and at the same time, the servo motor 12 is started to rotate at a uniform speed, allowing the expansion tube 6 to be released at a uniform speed. Through this arrangement, the end of the expansion tube 6 can be extended outward infinitely, and the end of the elastic expansion tube 6 is flat before it is stretched, so that the expansion tube 6 can penetrate into various In the gap, the gap between the plugging plate and the tunnel wall can be sealed, which greatly reduces the problem of leakage. During operation, when the expansion tube 6 is extended, the cement concrete is filled into the outward-extending expansion tube 6 through the transmission pipe 5 and the nozzle 4 by the mud pump 3, and then it is waited for to solidify. Through this arrangement, the soft expansion tube 6 can be turned into a hard pipe after the extension and filling is completed, so as to resist the pressure of the inner mud gushing out, thereby further improving the function of preventing leakage. During operation, when a work is completed and the plugging plate is recovered, the electric clamp 10 can be started to fix the expansion tube 6 inside the extrusion box 1, and then the cutting assembly can be started to cut the expansion tube 6 above the electric clamp 10, and then the staff can remove the solidified part of the expansion tube 6 above. , then start the electric telescopic rod 9 to push the expansion tube 6 upward, so that the unused expansion tube 6 part extends out of the extrusion box 1, and the operator grabs the end of the expansion tube 6 and flips it over, and then connects the flipped part with the card slot 21, and puts on the card ring to fix it. Through this arrangement, the equipment can be recycled, which is convenient for subsequent use. When working, the motor is started to drive the central wheel 13 to rotate, and the cutting shears 15 are driven to close through the two connecting ropes 14, so that the expansion tube 6 can be cut. After that, the cutting shears 15 will return to the open state under the action of its own spring, waiting for the next cutting, thereby achieving a convenient cutting effect. When working, the setting of the binding rod 17 and the through slot 16 is coordinated, so that the cutting shears 15 can be rotated upward as a whole, so that the electric clamp 1 0's pushing process will not be blocked, so there is no need to retract the cutting shears 15 inward after cutting the expansion tube 6, thereby reducing operations, and the normal opening and closing movement restraining rod 17 can slide freely in the through groove 16, and through this arrangement, the cutting shears 15 can be well restricted in the moving groove 7, and can rotate and open and close at the same time, and will not be out of the original position due to rotation and opening and closing; when working, during the cutting process, the servo motor 2 19 is started to drive the vibration plate 18 to move. Since the servo motor 2 19 and the vibration plate 18 are eccentrically connected, the vibration plate 18 will not rotate, but will vibrate violently, thereby effectively increasing the cutting effect and reducing the problem that the vibration plate 18 is not sharp enough after long-term use, making it difficult to cut the expansion tube 6;During operation, in conjunction with the settings of the receiving groove 27 and the filling bag 22, when cement concrete is started to be filled into the expansion tube 6, the transmission pump 23 is started. The transmission pump 23 can fill air into the filling bag 22 or suck out the air. First, air is rushed into the filling bag 22 to make it rush out of the receiving groove 27, and then the outlet of the extrusion box 1 can be blocked. In conjunction with the elasticity and inflation setting of the filling bag 22, the sealing performance of the filling can be effectively improved. In conjunction with this setting, it is difficult for cement concrete in the filling process to enter the extrusion box 1, so that the equipment can be used for a long time and cleanly. During operation, in conjunction with the setting of the friction block 24, when the filling is completed, the transmission pump 23 is started to absorb the air inside the filling bag 22. At the same time, in conjunction with the connection of the elastic strip, the filling bag 22 can smoothly enter the receiving groove 27. When the friction block 24 is provided, the cement concrete outside the filling bag 22 can be cleaned, thereby reducing the cement adhering to the outside and minimizing the impact on subsequent use. When working, the scales 26 that are pressed together can increase the strength of the expansion tube 6. At the same time, because the scales 26 are not connected to each other, the expansion tube 6 can still be curled and stretched, thereby increasing the friction resistance of the outside and reducing the friction and breakage of the expansion tube 6 without affecting the normal use of the expansion tube 6. When working, the extension strip 20 is provided so that the concrete solidifying on the inside can grasp the extension strip 20, making the solidified expansion tube 6 more integrated, further improving the strength of the expansion tube 6 and the effect of preventing grout leakage. The elastic extension strip 20 can also be curled without hindering the normal operation of the expansion tube 6.

[0041] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0042] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0043] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for preventing grout leakage for tunnel construction, characterized by: The invention comprises an extrusion box (1), the ends of several groups of extrusion boxes (1) are distributed on the outside of the tunnel plug plate, the top of the extrusion box (1) is set to be open, a servo motor (12) is fixedly installed on the inside of the extrusion box (1), a winding wheel (11) is fixedly installed on the transmission end of the servo motor (12), an expansion tube (6) is wound around the outside of the winding wheel (11), the expansion tube (6) is set to be elastic material, the outside of the end of the expansion tube (6) away from the winding wheel (11) is fixedly connected to the outside of the end of the extrusion box (1), and two groups of air pumps (2) are fixedly installed on the inside of the extrusion box (1); Two groups of mud pumps (3) are fixedly installed on the inner side of the squeeze box (1), and two groups of nozzles (4) are fixedly installed on the inner side of the squeeze box (1) near the top, and a transmission pipe (5) is fixedly connected between the nozzle (4) and the mud pump (3); A positioning ring is fixedly installed on the inner side of the extrusion box (1), and the positioning ring is located above the middle of the winding wheel (11). An electric clamp (10) is fixedly installed on the inner side of the extrusion box (1), and the electric clamp (10) is located on the outer side of the expansion tube (6). Two sets of electric telescopic rods (9) are fixedly installed on the bottom end of the electric clamp (10). A cutting assembly is provided on the inner side of the extrusion box (1). A card slot (21) is provided on the outer side of the top end of the extrusion box (1), and a card ring is provided on the outer side of the card slot (21); The cutting assembly comprises a cutting shear (15), a movable groove (7) is provided on one side of the extrusion box (1), the cutting shear (15) is located on the inner side of the movable groove (7) near the bottom end, the inner side of the movable groove (7) is rotatably connected to a centralizing wheel (13), one end of the centralizing wheel (13) is fixedly mounted with a motor, and connecting ropes (14) are connected between the inner ends of the cutting shear (15) and the centralizing wheel (13); A servo motor 2 (19) is fixedly mounted on the other end of the cutting shear (15), and a vibration plate (18) is fixedly connected to the output end of the servo motor 2 (19), and the vibration plate (18) is eccentrically connected to the output end of the servo motor 2 (19).

2. The auxiliary equipment for preventing grout leakage for tunnel construction according to claim 1, characterized in that: A through slot (16) is provided at the top end of the cutting shear (15), a restraining rod (17) is fixedly installed on the inner side of the movable slot (7), the restraining rod (17) passes through the through slot (16), and a disc is fixedly installed at the top end of the restraining rod (17).

3. The auxiliary equipment for preventing grout leakage for tunnel construction according to claim 2, characterized in that: Two groups of receiving grooves (27) are provided on the inner side of the top of the extrusion box (1), and the two groups of receiving grooves (27) are symmetrically arranged. A filling bag (22) is fixedly installed on the inner side of the receiving groove (27), and the bottom end of the filling bag (22) is open. The bottom end of the filling bag (22) is fixedly connected to a transmission pump (23).

4. The auxiliary equipment for preventing grout leakage for tunnel construction according to claim 3, characterized in that: Several groups of friction blocks (24) are fixedly installed at the outlet end of the receiving groove (27), the ends of the friction blocks (24) are arranged in a flat shape, and an elastic strip is fixedly connected between the inner side of the filling bag (22) and the output end of the transmission pump (23).

5. The auxiliary equipment for preventing grout leakage for tunnel construction according to claim 4, characterized in that: The expansion tube (6) comprises a rubber tube (25), and a plurality of groups of evenly arranged scales (26) are fixedly mounted on the outer side of the rubber tube (25). The scales (26) are made of elastic material, and adjacent scales (26) are pressed against each other.

6. The auxiliary equipment for preventing grout leakage for tunnel construction according to claim 5, characterized in that: A plurality of groups of extension strips (20) are fixedly installed on the inner side of the rubber tube (25); the extension strips (20) are arranged in an arc shape and are made of elastic material.

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