Slurry system and pipe jacking machine

Abstract

The utility model discloses a slurry system and a pipe jacking machine. The slurry system comprises a water inlet pipeline, a water outlet pipeline and a pipeline on-off control mechanism, each of the water inlet pipeline and the water outlet pipeline comprises a bypass valve, a hose and a sleeve, one end of the hose is connected with the bypass valve, a steel pipe is arranged at the other end of the hose, and the steel pipe is arranged in the sleeve in a sleeving manner and can axially slide along the sleeve; the pipeline on-off control mechanism is connected with the bypass valve and used for controlling on-off of a water way of the bypass valve. According to the utility model, when the correction operation is carried out on the machine head, the hose cannot be stretched to cause fracture to cause a water seepage accident, and cannot be squeezed to cause collapse to influence the construction, so that the safety is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe jacking pipeline construction equipment, and specifically relates to a mud system and a pipe jacking machine. Background Art

[0002] During the jacking process, the head of the existing pipe jacking machine controls the direction of the jacking axis through the correction cylinder at the hinge of the shell, so that the jacking route can follow the predetermined trajectory. However, during the correction process, the mud system inside the pipe jacking machine must have a certain stretching and compression margin here. The existing conventional models directly lay hoses. When the head rotates during the correction process during the construction process, the hose will be stretched and broken, resulting in water seepage accidents, or squeezed and compressed, making it impossible to construct normally, and it is also accompanied by safety issues. In addition, in the existing conventional models, the mud system inside the machine is not tightened, and the rotation of the head will cause the mud system to fall off, and even seriously cause casualties. Summary of the invention

[0003] The utility model aims to overcome the deficiencies in the prior art and to provide a mud system and a pipe jacking machine. When the machine head is in a deviation correction operation, the hose will not be stretched to cause breakage and water seepage, nor will it be squeezed to cause collapse and affect construction, and the safety is high.

[0004] The utility model provides the following technical solutions:

[0005] In a first aspect, a mud system is provided, including a water inlet pipeline, a water outlet pipeline and a pipeline on-off control mechanism;

[0006] The water inlet pipeline and the water outlet pipeline each include a bypass valve, a hose and a sleeve, one end of the hose is connected to the bypass valve, and the other end of the hose is provided with a steel pipe, the steel pipe is sleeved inside the sleeve and can slide axially along the sleeve;

[0007] The pipeline on-off control mechanism is connected to the bypass valve and is used to control the on-off of the water channel of the bypass valve.

[0008] Furthermore, a first sealing ring is provided at one end of the sleeve, and a first flange is provided at the other end of the sleeve.

[0009] Furthermore, a guide sleeve is provided on the outer sliding sleeve of the steel pipe, and the guide sleeve is fixedly connected to the first flange by a second screw.

[0010] Furthermore, a sealing groove is provided at the end of the steel pipe, and a second sealing ring is installed in the sealing groove.

[0011] Furthermore, a second flange is provided at one end of the hose close to the bypass valve, and the bypass valve is provided with a third flange corresponding to the second flange, and the second flange and the third flange are connected by bolts.

[0012] Furthermore, the pipeline on-off control mechanism includes a swing cylinder, a driving rod connected to the telescopic shaft of the swing cylinder, and two linkage rods connected to both ends of the driving rod. The two linkage rods are respectively connected to the valve switches of the bypass valves in the water inlet pipeline and the water outlet pipeline.

[0013] Furthermore, one end of the driving rod away from the swing cylinder is connected to a sliding rod, a support frame is arranged on the upper part of the bypass valve, and the sliding rod slides through the support frame.

[0014] Furthermore, it also includes a mounting seat, which is fixedly connected to the two bypass valves, and a cylinder frame is provided on the mounting seat, and the swing cylinder is installed on the cylinder frame.

[0015] Furthermore, it also includes a fixing seat, which includes a horizontal plate and a vertical plate vertically connected to the horizontal plate, the horizontal plate is provided with screw holes, the vertical plate is provided with a slot engaged with the two hoses, and the horizontal plate and the vertical plate are connected with a reinforcing rib located between the two slots.

[0016] In a second aspect, a pipe jacking machine is provided, comprising a front end housing of a deflection correction section, a rear end housing of a deflection correction section, and the mud system described in the first aspect;

[0017] One end of the sleeve away from the hose is connected to the front end housing of the deflection section, and the bypass valve is connected to the rear end housing of the deflection correction section.

[0018] Furthermore, one end of the sleeve away from the hose is connected to the eccentric front end housing through a flange pressing plate and a first screw.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The utility model provides a mud system, in which the pipeline on-off control mechanism is used to control the on-off of the waterway of the bypass valve. The water inlet pipeline and the water outlet pipeline both include a bypass valve, a hose and a sleeve. One end of the hose is connected to the bypass valve, and the other end of the hose is provided with a steel pipe, which is sleeved inside the sleeve and can slide along the axial direction of the sleeve. When the machine head is correcting the deviation, the steel pipe at the end of the hose slides along the axial direction of the sleeve, ensuring that the hose will not be stretched to cause breakage and water seepage accidents, or will not be squeezed to cause collapse and affect construction, and the safety is high;

[0021] (2) The pipe jacking machine provided by the utility model has an end of the casing away from the hose connected to the front end housing of the deflection section, and a bypass valve connected to the rear end housing of the deflection correction section, so that the mud system is firmly installed in the housing of the pipe jacking machine, ensuring that the mud system will not fall off during the deflection correction operation, which is safe and reliable;

[0022] (3) The mud system provided by the utility model has a simple structure and is easy to install, and can be applied to various types of pipe jacking machines. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the planar structure of the mud system in the embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the explosion structure of the mud system in the embodiment of the utility model;

[0025] Figure 3 It is a structural schematic diagram of a fixing seat in an embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of the installation structure of the mud system in the pipe jacking machine in the embodiment of the utility model;

[0027] The markings in the figure are: 1. Swing cylinder; 2. Bypass valve; 21. Valve switch; 3. Drive rod; 4. Bolt; 5. Hose; 51. Second flange; 52. Steel pipe; 53. Sealing groove; 6. Second screw; 7. Guide sleeve; 8. Second sealing ring; 9. First screw; 10. Flange pressure plate; 11. First sealing ring; 12. Sleeve; 13. Fixed seat; 131. Cross plate; 132. Vertical plate; 133. Screw hole; 134. Slot; 135. Reinforcement rib; 14. Third screw; 15. Mounting seat; 16. Cylinder frame; 17. Support frame; 18. Sliding rod; 19. Linkage rod. DETAILED DESCRIPTION

[0028] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, this embodiment provides a mud system, including a water inlet pipeline, a water outlet pipeline and a pipeline on-off control mechanism; the water inlet pipeline and the water outlet pipeline both include a bypass valve 2, a hose 5 and a sleeve 12; the pipeline on-off control mechanism is connected to the bypass valve 2, and is used to control the on-off of the water circuit of the bypass valve 2.

[0031] One end of the casing 12 is provided with a first sealing ring 11, specifically an O-ring, for ensuring the sealing of mud transportation; the other end of the casing 12 is provided with a first flange.

[0032] One end of the hose 5 is connected to the bypass valve 2 , and the other end of the hose 5 is provided with a steel pipe 52 . The steel pipe 52 is sleeved inside the sleeve 12 and can slide axially along the sleeve 12 .

[0033] Specifically, a guide sleeve 7 is provided on the outer sliding sleeve of the steel pipe 52, and the guide sleeve 7 is fixedly connected to the first flange by a second screw 6. The guide sleeve 7 has an axial limit limiting function, which can ensure that the hose 5 can make axial movement in the sleeve 12; a sealing groove 53 is provided at the end of the steel pipe 52, and a second sealing ring 8 is installed in the sealing groove 53, specifically an O-ring, which is used to ensure the sealing of mud transportation.

[0034] Specifically, a second flange 51 is provided at one end of the hose 5 close to the bypass valve 2 , and the bypass valve 2 is provided with a third flange corresponding to the second flange 51 . The second flange 51 and the third flange are connected by bolts 4 .

[0035] The pipeline on-off control mechanism includes a swing oil cylinder 1, a driving rod 3 connected to the telescopic shaft of the swing oil cylinder 1, and two linkage rods 19 connected to both ends of the driving rod 3. The two linkage rods 19 are respectively connected to the valve switch 21 of the bypass valve 2 in the water inlet pipeline and the water outlet pipeline. A sliding rod 18 is connected to the end of the driving rod 3 away from the swing oil cylinder 1. A support frame 17 is arranged on the upper part of the bypass valve 2. The sliding rod 18 slides through the support frame 17. When the telescopic shaft of the swing oil cylinder 1 is extended and retracted, the driving rod 3 is pushed to move, thereby driving the linkage rod 19 to push the valve switch 21 of the bypass valve 2 to rotate, thereby realizing the on-off of the mud waterway; during the movement of the driving rod 3, the sliding rod 18 can move through the support frame 17 to ensure the stability of the movement of the driving rod 3.

[0036] The mud system provided in this embodiment further includes a mounting seat 15 , which is fixedly connected to the two bypass valves 2 . A cylinder frame 16 is disposed on the mounting seat 15 , and the swing cylinder 1 is mounted on the cylinder frame 16 .

[0037] The mud system provided in this embodiment also includes a fixing seat 13, which includes a horizontal plate 131 and a vertical plate 132 vertically connected to the horizontal plate 131. The horizontal plate 131 is provided with a screw hole 133, and the vertical plate 132 is provided with a slot 134 engaged with two hoses 5. A reinforcing rib 135 located between the two slots 134 is connected between the horizontal plate 131 and the vertical plate 132. By installing the third screw 14 in the screw hole 133, the fixing seat 13 can be fixed in the housing of the jacking machine to prevent the hose 5 and the bypass valve 2 from being displaced during the construction process.

[0038] Example 2

[0039] like Figure 1 and Figure 4 As shown, this embodiment provides a pipe jacking machine, including a front end shell of the correcting joint, a rear end shell of the correcting joint and the mud system described in Example 1; the end of the casing 12 away from the hose 5 is installed on the front end shell of the correcting joint through a flange pressure plate 10 and a first screw 9, and the fixing seat 13 is installed on the rear end shell of the correcting joint through a third screw 14, so that the bypass valve 2 is connected to the rear end shell of the correcting joint.

[0040] The utility model controls the on-off of the water path of the bypass valve through a pipeline on-off control mechanism; when the machine head is in the deviation correction operation, the steel pipe 52 at the end of the hose 5 slides axially along the sleeve 12 to ensure that the hose 5 will not be stretched to cause breakage and cause water seepage accidents, or will not be squeezed to cause collapse and affect construction, and the safety is high; in addition, the end of the sleeve 12 away from the hose 5 is connected to the front end shell of the deviation section, and the bypass valve 2 is connected to the rear end shell of the deviation correction section, so that the mud system is firmly installed in the shell of the jacking machine, ensuring that the mud system will not fall off during the deviation correction operation, and it is safe and reliable; the mud system provided by the utility model has a simple structure and is easy to install, and can be applied to various types of jacking machines.

[0041] It should be noted that, in the description of the present invention, the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0042] In the description of the present invention, it is to be understood that the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A mud system, characterized in that: It includes a water inlet pipeline, a water outlet pipeline and a pipeline on-off control mechanism; The water inlet pipeline and the water outlet pipeline each include a bypass valve, a hose and a sleeve, one end of the hose is connected to the bypass valve, and the other end of the hose is provided with a steel pipe, the steel pipe is sleeved inside the sleeve and can slide axially along the sleeve; The pipeline on-off control mechanism is connected to the bypass valve and is used to control the on-off of the water channel of the bypass valve.

2. The mud system according to claim 1, characterized in that: A first sealing ring is provided at one end of the sleeve, and a first flange is provided at the other end of the sleeve.

3. The mud system according to claim 2, characterized in that: The outer sliding sleeve of the steel pipe is provided with a guide sleeve, and the guide sleeve is fixedly connected to the first flange through a second screw.

4. The mud system according to claim 1, characterized in that: A sealing groove is provided at the end of the steel pipe, and a second sealing ring is installed in the sealing groove.

5. The mud system according to claim 1, characterized in that: A second flange is provided at one end of the hose close to the bypass valve, and the bypass valve is provided with a third flange corresponding to the second flange, and the second flange and the third flange are connected by bolts.

6. The mud system according to claim 1, characterized in that: The pipeline on-off control mechanism includes a swing cylinder, a driving rod connected to the telescopic shaft of the swing cylinder, and two linkage rods connected to both ends of the driving rod. The two linkage rods are respectively connected to the valve switches of the bypass valves in the water inlet pipeline and the water outlet pipeline.

7. The mud system according to claim 6, characterized in that: One end of the driving rod away from the swing oil cylinder is connected with a sliding rod, a support frame is arranged on the upper part of the bypass valve, and the sliding rod slides through the support frame.

8. The mud system according to claim 6, characterized in that: It also includes a mounting seat, which is fixedly connected to the two bypass valves. A cylinder frame is provided on the mounting seat, and the swing cylinder is installed on the cylinder frame.

9. The mud system according to claim 1, characterized in that: It also includes a fixing seat, which includes a horizontal plate and a vertical plate vertically connected to the horizontal plate, the horizontal plate is provided with screw holes, the vertical plate is provided with a slot engaged with the two hoses, and a reinforcing rib located between the two slots is connected between the horizontal plate and the vertical plate.

10. A pipe jacking machine, characterized in that: It comprises a front end shell of a deflection correcting section, a rear end shell of a deflection correcting section and a mud system according to any one of claims 1 to 9; One end of the sleeve away from the hose is connected to the front end housing of the deflection section, and the bypass valve is connected to the rear end housing of the deflection correction section.

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