Water stop device of tube push bench

Abstract

The utility model discloses a pipe jacking machine water stop device which comprises a mounting frame, a pipe penetrating hole for a pipeline to penetrate through is formed in the middle of the outer side of the mounting frame in a penetrating mode, a sealing ring seat is fixedly installed at an opening of the outer side of the pipe penetrating hole, a mounting groove is formed in the inner side of the sealing ring seat, and an expansion air bag is fixedly installed on the inner side of the mounting groove. A water stop film used for conducting water stop sealing on the outer wall of the pipeline is fixedly mounted at an opening in the outer side of the mounting groove, an inflation pipe is fixedly mounted on the outer side of the mounting groove in a penetrating mode, a driving motor is fixedly mounted at the top end in the mounting frame, and a transmission lead screw is fixedly mounted on a transmission shaft part on the inner side of the driving motor; a synchronous wheel is fixedly installed at the side end, away from the driving motor, of the transmission lead screw, and the outer curved surfaces of the two ends of the transmission lead screw are in threaded connection with lead screw nuts. According to the utility model, underground water or thixotropic slurry can be effectively prevented from flowing into a working well from a hole through the mutual matching of the water stop film and the arc-shaped water stop ring, so that the water stop effect is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to underground construction technical field, concretely is a jacking pipe machine water stop device. BACKGROUND

[0002] The jacking pipe machine is a kind of mechanical equipment for trenchless construction, and pipeline is jacked into soil according to design route by jacking mode, and underground pipeline laying is completed.The core function is to realize the pipeline construction of no excavation or less excavation ground, and it is especially suitable for pipeline laying engineering under the obstacles such as urban road, railway, river and building.

[0003] In jacking pipe construction, when jacking pipe machine enters or exits pipe hole, due to the pressure of underground water or thixotropic mud, hole sealing failure is easily caused, and underground water or thixotropic mud outflow occurs.This not only causes material waste, but also can pollute the environment, and even affect construction safety.For example, when soft soil layer pipeline is jacked, soil loss phenomenon is easily caused by water sealing failure, which leads to the collapse of upper ground surface of hole, and causes safety accident.

[0004] At present, the commonly used water stop device has some defects.For example, single-layer rubber water stop ring is often turned outwards due to underground water or thixotropic mud pressure in use process and difficult to restore original state, and further leads to sealing failure, in addition, in the process of pipeline jacking, pipeline concrete and rubber water stop ring exist friction, and rubber water stop ring is easily abraded, further affecting water sealing effect. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of jacking pipe machine water stop device to solve the single-layer rubber water stop ring in the use process in the background art described above often be turned outwards due to underground water or thixotropic mud pressure and difficult to restore original state, and further lead to sealing failure, in addition, in the process of pipeline jacking, pipeline concrete and rubber water stop ring exist friction, and rubber water stop ring is easily abraded, further affecting water sealing effect problem.

[0006] To achieve the above object, the utility model provides the following technical scheme: including mounting frame, the mounting frame outside middle part is penetrated and is set up and is used for the pipe passing through pipe hole, the pipe hole outside opening is fixedly installed with sealing ring seat, the sealing ring seat inside is set up with installation groove, installation groove inside fixedly installed with inflatable air bag, the installation groove outside opening is fixedly installed with the water stop film for the water sealing of pipe outer wall, the installation groove outside is penetrated and is fixedly installed with inflation tube;

[0007] The driving motor is fixedly installed at the inner top end of the mounting frame, a transmission screw rod is fixedly installed at the inner side of the driving motor, a synchronous wheel is fixedly installed at the side end away from the driving motor of the transmission screw rod, screw nuts are threadedly connected to the outer curved surfaces of the two ends of the transmission screw rod, a water stop ring is fixedly installed at the inner side of the screw nut, a limiting ring is fixedly installed at the outer side of the upper end of the water stop ring, a limiting sliding rod is movably connected to the limiting ring by penetrating the middle part of the limiting ring, an arc-shaped water stop ring for sealing the outer wall of the pipeline is fixedly installed at the inner side of the water stop ring, and a scraping ring for blocking the mud on the outer wall of the pipeline is fixedly installed at the bottom of the water stop ring.

[0008] Preferably, positioning holes are formed in the four corners of the inner side of the mounting frame, and the positioning holes are symmetrically distributed at the four corners of the inner side of the mounting frame, and a power control cabinet is fixedly installed at the upper end of the mounting frame.

[0009] Preferably, a pressure sensor for monitoring the internal pressure of the inflatable air bag is fixedly installed in the inflatable air bag.

[0010] Preferably, the inner side of the inflation pipe is communicated with the inflatable air bag, and the outer side of the inflation pipe is communicated with an external air pump through a connecting hose.

[0011] Preferably, the driving motor is composed of a waterproof motor, and the two transmission screw rods are rotatably connected to the inner top end of the mounting frame by bearing seats.

[0012] Preferably, the two synchronous wheels are connected to each other by a synchronous belt, the outer curved surfaces of the two ends of the transmission screw rod are oppositely directed, and the inner walls of the water stop ring and the sealing ring seat and the inner wall of the pipe penetrating hole are on the same central axis.

[0013] Preferably, the limiting sliding rods are fixedly installed at the inner top end of the mounting frame and supported on both sides, and the lower end of the scraping ring is provided with a rounded corner.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a kind of inflatable air bags, when the external air pump is opened, it is inflated to the inside of inflatable air bag by connecting hose and inflation pipe, when inflatable air bag is inflated, inflatable air bag is expanded to push water stop film, when water stop film is pushed, it is deformed and shrinks inward, when water stop film is deformed and shrinks inward, it is closely attached to the outer wall of pipeline, sealing water effect is realized, and by controlling the internal pressure of inflatable air bag, the contraction degree of water stop film can be adjusted, to adapt to different water pressure, ensure water effect;

[0016] The utility model discloses simultaneously when driving motor opens, will drive transmission screw rod to rotate, when transmission screw rod rotates, will drive synchronous wheel to rotate, when synchronous wheel rotates, will drive two transmission screw rods to rotate synchronously through synchronous belt drive, and transmission screw rod's both ends outer curved surface thread is opposite, so that when transmission screw rod rotates, will drive water stop ring to move inwards or outwards synchronously through screw nut drive, when water stop ring moves inwards linearly synchronously, will drive arc water stop ring to move inwards and tightly adhere to the pipeline outer wall, realizes further water stop effect, and when water stop ring moves inwards linearly, will drive scraper ring and block the mud of pipeline outer wall, and the mud that sets up is pushed outward through the round corner that the lower end outside of scraper ring is equipped, avoids the influence of mud to water seal effect, thereby realizes water seal, and through water film and arc water stop ring cooperation, can effectively prevent groundwater or thixotropic mud from flowing into the work well from the hole, greatly improves water stop effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic diagram of the utility model's pipe jacking machine water stop device Figure 1 ;

[0018] Figure 2 It is a whole structure schematic diagram of the utility model's pipe jacking machine water stop device Figure 2 ;

[0019] Figure 3 It is a whole structure sectional view schematic diagram of the utility model's pipe jacking machine water stop device.

[0020] In the drawing: 1, mounting frame, 2, sealing ring seat, 3, positioning hole, 4, power control cabinet, 5, pipe hole, 6, installation groove, 7, inflatable air bag, 8, water film, 9, inflation pipe, 10, driving motor, 11, transmission screw rod, 12, synchronous wheel, 13, screw nut, 14, water stop ring, 15, limit ring, 16, limit slide rod, 17, arc water stop ring, 18, scraper ring. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0022] Please refer to Figures 1-3The utility model provides a kind of pipe jacking machine water stop device technical scheme: including mounting bracket 1, the inside four corners of mounting bracket 1 are penetrated and are provided with positioning hole 3, and positioning hole 3 quantity has several, respectively with the inside four corners of mounting bracket 1 symmetrical distribution, so that through positioning hole 3 cooperation positioning bolt is positioned to mounting bracket 1, power control cabinet 4 is fixedly installed on the upper end of mounting bracket 1;

[0023] Pipe-through hole 5 for pipeline passing through is penetrated and is arranged in the middle part of the outside of mounting bracket 1, sealing ring seat 2 is fixedly installed at the opening of the outside of pipe-through hole 5, installation groove 6 is arranged in the inside of sealing ring seat 2, inflatable air bag 7 is fixedly installed in the inside of installation groove 6, and pressure sensor for monitoring the pressure inside inflatable air bag 7 is fixedly installed in the inside of inflatable air bag 7, water stop membrane 8 for water stop sealing to the outer wall of pipeline is fixedly installed at the opening of the outside of installation groove 6, inflation pipe 9 is fixedly installed and penetrates the outside of installation groove 6, and inflatable air bag 7 is communicated with the inside of inflation pipe 9, inflation pipe 9 is communicated with external air pump by connecting hose on the outside, drive motor 10 is fixedly installed on the inner top end of mounting bracket 1, and drive motor 10 is composed of waterproof motor, drive motor 10 inside transmission shaft part is fixedly installed with transmission screw rod 11, and drive motor 11 quantity has two, respectively through bearing seat support rotationally connected in the inner top end of mounting bracket 1, synchronous pulley 12 is fixedly installed on the side end of transmission screw rod 11 away from drive motor 10, and two synchronous pulleys 12 are transmissionally connected with each other by synchronous belt, the outer curved surface thread of transmission screw rod 11 itself two ends is opposite, screw nut 13 is connected to the outer curved surface thread of transmission screw rod 11 two ends, water stop ring 14 is fixedly installed in the inside of screw nut 13, and water stop ring 14 and sealing ring seat 2 inner wall and pipe-through hole 5 inner wall are on the same central axis, limit ring 15 is fixedly installed on the outside of the upper end of water stop ring 14, limit sliding rod 16 is movably connected by penetrating and fitting in the middle part of limit ring 15, and limit sliding rod 16 both sides are supported and fixedly installed in the inner top end of mounting bracket 1, so that water stop ring 14 is linearly moved and limited by limit sliding rod 16 cooperation limit ring 15, arc water stop ring 17 for water stop sealing to the outer wall of pipeline is fixedly installed in the inside of water stop ring 14, and scraper ring 18 for blocking the slurry of the outer wall of pipeline is fixedly installed in the bottom of water stop ring 14, and round corner is arranged in the outside of the lower end of scraper ring 18.

[0024] Working principle: in use, the utility model is installed and positioned by positioning hole 3 cooperating with positioning bolt to mounting frame 1, when mounting frame 1 is installed and positioned, the pipe penetrating of pipe jacking machine is carried out through pipe penetrating hole 5, when water sealing of the pipe penetrating of pipe jacking machine is needed, the inflation of inflatable air bag 7 is controlled to open the external air pump, when the external air pump is opened, the inflation of inflatable air bag 7 is carried out through connecting hose and inflation tube 9, when the inflation of inflatable air bag 7 is carried out, inflatable air bag 7 is inflated to push water stop film 8, when water stop film 8 is pushed, it is deformed and shrinks inward, when water stop film 8 is deformed and shrinks inward, it is tightly attached to the outer wall of the pipeline, realizes the sealing effect of water stop, and the contraction degree of water stop film 8 can be adjusted by controlling the pressure in inflatable air bag 7 to adapt to different water pressures, so that the water stop effect is ensured;

[0025] When the driving motor 10 is opened, the transmission screw rod 11 is driven to rotate, the synchronous wheel 12 is driven to rotate when the transmission screw rod 11 rotates, the two transmission screw rods 11 are synchronously rotated through the synchronous belt transmission when the synchronous wheel 12 rotates, and the outer curved threads of the two ends of the transmission screw rod 11 are opposite to each other, so that the water stop ring 14 is driven to move inward or outward synchronously in a straight line through the screw nut 13 when the transmission screw rod 11 rotates, the arc-shaped water stop ring 17 is synchronously driven to tightly attach to the outer wall of the pipeline when the water stop ring 14 moves inward in a straight line, further water stop effect is realized, and the mud on the outer wall of the pipeline is blocked by the scraper ring 18 when the water stop ring 14 moves inward in a straight line, and the blocked mud is pushed outward through the round corner formed on the outer side of the lower end of the scraper ring 18, so that the mud does not affect the water sealing effect, so that the water sealing is realized, and the underground water or the thixotropic mud is effectively prevented from flowing into the working well from the hole through the cooperation of the water stop film 8 and the arc-shaped water stop ring 17, and the water stop effect is greatly improved.

[0026] It should be noted that, in this text, 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 that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water-stopping device for a pipe jacking machine, characterized in that: The device includes a mounting bracket (1), which has a through hole (5) for a pipe to pass through in the middle of its outer side. A sealing ring seat (2) is fixedly installed at the opening of the through hole (5). An installation groove (6) is opened on the inner side of the sealing ring seat (2). An inflatable airbag (7) is fixedly installed on the inner side of the installation groove (6). A water-stopping membrane (8) for sealing the outer wall of the pipe is fixedly installed at the opening of the installation groove (6). An inflation tube (9) is fixedly installed through the outer side of the installation groove (6). A drive motor (10) is fixedly installed at the top of the mounting bracket (1). A transmission screw (11) is fixedly installed on the transmission shaft part inside the drive motor (10). A synchronous pulley (12) is fixedly installed on the end of the transmission screw (11) away from the drive motor (10). A screw nut (13) is threadedly connected to the outer curved surface of both ends of the transmission screw (11). A water-stop ring (14) is fixedly installed inside the screw nut (13). A limit ring (15) is fixedly installed on the outer side of the upper end of the water-stop ring (14). A limit slide rod (16) is connected through and fits in the middle of the limit ring (15). An arc-shaped water-stop ring (17) for sealing the outer wall of the pipe is fixedly installed inside the water-stop ring (14). A scraper ring (18) for blocking mud on the outer wall of the pipe is fixedly installed at the bottom of the water-stop ring (14).

2. The water-stopping device for a pipe jacking machine according to claim 1, characterized in that: The mounting bracket (1) has positioning holes (3) through the four corners on the inner side, and there are several positioning holes (3) symmetrically distributed at the four corners on the inner side of the mounting bracket (1). A power control cabinet (4) is fixedly installed on the upper end of the mounting bracket (1).

3. A water-stopping device for a pipe jacking machine according to claim 2, characterized in that: A pressure sensor for monitoring the internal pressure of the inflatable airbag (7) is fixedly installed inside the inflatable airbag (7).

4. A water-stopping device for a pipe jacking machine according to claim 3, characterized in that: The inner side of the inflation tube (9) is connected to the inflatable airbag (7), and the outer side of the inflation tube (9) is connected to an external air pump through a connecting hose.

5. A water-stopping device for a pipe jacking machine according to claim 4, characterized in that: The drive motor (10) is a waterproof motor, and there are two transmission screws (11), which are rotatably connected to the top of the mounting frame (1) through bearing seats.

6. A water-stopping device for a pipe jacking machine according to claim 5, characterized in that: The two synchronous pulleys (12) are connected to each other by a synchronous belt. The outer curved threads of the two ends of the transmission screw (11) face opposite directions. The inner walls of the water-stop ring (14) and the sealing ring seat (2) and the inner wall of the through hole (5) are on the same central axis.

7. A water-stopping device for a pipe jacking machine according to claim 6, characterized in that: The limiting slide bar (16) is fixedly installed on both sides inside the top of the mounting bracket (1), and the scraper ring (18) has a rounded corner on the outer side of its lower end.

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