Automatic fastening flexible joint device for shield construction ventilation pipe

Abstract

The utility model discloses an automatic fastening flexible joint device for a shield construction ventilation pipe, which comprises a telescopic flexible connecting pipe connected to an air pipe through an automatic fastening device, the telescopic flexible connecting pipe comprises a connecting pipe section and a telescopic flexible pipe section, and the automatic fastening device comprises a steel hoop belt, a mounting seat and a hose clamp screw. A coupler is installed on a nut of the hose clamp screw, a servo motor is installed at one end of the coupler and fixedly installed on the support, a pressure sensor is arranged on the inner circle face of the steel hoop belt, and the servo motor is controlled by a controller. According to the telescopic flexible connecting pipe, the requirement for connection between air pipes can be met, the telescopic flexible connecting pipe can flexibly adapt to the use scenes of frequent movement and pipeline extension, the telescopic flexible connecting pipe is fixedly connected to the air pipes through the automatic fastening devices, and the connection between the telescopic flexible connecting pipe and the air pipes can be kept in a stable state all the time; and the problem that the connection sealing quality is reduced due to vibration is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel engineering technical field, concretely relates to a kind of automatic fastening flexible joint device for shield construction ventilation pipe. BACKGROUND

[0002] Shield construction in tunnel engineering is a kind of efficient, safe tunneling method, is widely used in subway, water tunnel and traffic tunnel construction.In construction process, the main function of ventilation system is to transport enough fresh air to the tunneling area, while excluding gas and dust generated during construction process.Ventilation system is usually by hole outside primary fan to transport air to shield machine secondary fan through primary air pipe, and secondary fan is transported to shield machine working face by secondary air pipe.At present, each air pipe of ventilation pipeline is connected by the way of horn mouth insertion, and this fixed connection mode has poor sealing effect, and air leakage is easy, and it is difficult to meet the demand of dynamic adjustment in shield construction, especially in the scene of frequent extension or movement during tunneling process, and it is particularly insufficient;At the same time, in actual construction process, the secondary air pipe of shield machine is in vibration state for a long time, and long time vibration can cause loosening or air leakage of secondary air pipe, resulting in the decline of ventilation efficiency;Therefore, an automatic fastening flexible joint device for shield construction ventilation pipe should be provided. CONTENT OF UTILITY MODEL

[0003] The utility model provides an automatic fastening flexible joint device for shield construction ventilation pipe, which has simple structure, reasonable design, and telescopic flexible pipe can meet the needs of flexible connection between various air pipes, and multiple sealing rings can improve the sealing performance of air pipe and telescopic flexible pipe connection;The telescopic flexible pipe is fixedly connected to the air pipe by automatic fastening device, so that the connection between the telescopic flexible pipe and the air pipe can always maintain stable state, and the problem of connection sealing quality decline caused by vibration can be avoided.

[0004] The utility model discloses an automatic fastening flexible joint device for shield construction ventilation pipe, which is characterized by comprising a telescopic flexible connecting pipe connected to the air pipe through an automatic fastening device.

[0005] The utility model discloses an automatic fastening flexible joint device for shield construction ventilation pipe, which is characterized by comprising a telescopic flexible connecting pipe connected to the air pipe through an automatic fastening device.

[0006] Compared with the prior art, the utility model has the following advantages:

[0007] 1、The utility model discloses an automatic fastening flexible joint device for shield construction ventilation pipe, which is characterized by comprising a telescopic flexible connecting pipe connected to the air pipe through an automatic fastening device.

[0008] 2, the utility model discloses a be used for fixing and connecting telescopic flexible connector on the air pipe automatic fastening device, and automatic fastening device includes steel hoop belt, mounting seat, throat clamp screw, coupling, connecting sleeve, servo motor, support, pressure sensor and controller, when actually using, utilize pressure sensor to be able to real-time detection steel hoop belt exert on telescopic flexible connector's pressure value, when telescopic flexible connector and air pipe appear loose or air leakage due to long-term vibration, the pressure value that pressure sensor detects will be less than set pressure value, and real-time transmission to controller, and the servo motor is started by controller, and the coupling is driven by motor output shaft, connecting sleeve and throat clamp screw rotate simultaneously, thereby to steel hoop belt is automatically fastened, until the pressure value that pressure sensor detects is not less than set pressure value, make the connection between telescopic flexible connector and air pipe always keep stable state, avoid the problem that the connection sealing quality is caused due to vibration and drops.

[0009] 3, the utility model discloses simple structure, reasonable in design is convenient for automatic control, and it is convenient to spread application.

[0010] Summarized above, the utility model discloses simple structure, reasonable in design, and telescopic flexible connector can satisfy the connection need flexible adaptation of each air pipe between and elongate pipeline's use scene of frequently moving, and multiple sealing rings can improve the sealing property of air pipe and telescopic flexible connector connection, utilize automatic fastening device and fix and connect telescopic flexible connector on the air pipe, can make the connection between telescopic flexible connector and air pipe always keep stable state, avoid the problem that the connection sealing quality is caused due to vibration and drops.

[0011] Below, by the drawing and embodiment, the utility model is further described in detail. DRAWINGS

[0012] Figure 1 It is the structural schematic diagram of the utility model.

[0013] Figure 2 It is the connection structure schematic diagram of the utility model connecting sleeve, coupling and motor output shaft.

[0014] Mark explanation:

[0015] 1-air pipe; 2-1-connection pipe section; 2-2-telescopic flexible pipe section;

[0016] 2-3-steel skeleton ring; 3-steel hoop belt; 3-1-rectangular inclined channel;

[0017] 4-mounting seat; 5-throat clamp screw; 6-coupling;

[0018] 7-support; 8-battery pack; 9-servo motor;

[0019] 9-1 - motor output shaft; 10 - connecting sleeve; 10-1 - clamping protrusion;

[0020] 11 - waist type hole; 12 - anchor bolt. DETAILED DESCRIPTION

[0021] As Figure 1 and Figure 2 The utility model discloses a flexible pipe for connecting the wind pipe, which comprises a connecting pipe segment 2-1 connected with the wind pipe 1 and a flexible pipe segment 2-2 connected with the connecting pipe segment 2-1, a plurality of steel rings 2-3 are arranged on the flexible pipe segment 2-2, a plurality of sealing rings are arranged on the inner wall of the connecting pipe segment 2-1, the automatic fastening device comprises a bracket 7, a servo motor 9 mounted on the bracket 7 and a steel hoop 3 sleeved on the outer surface of the connecting pipe segment 2-1, one end of the steel hoop 3 is provided with a mounting seat 4, a throat screw 5 is mounted on the mounting seat 4, a plurality of rectangular inclined grooves 3-1 are arranged on the steel hoop 3 and engaged with the throat screw 5, a coupling 6 is connected to the motor output shaft 9-1 of the servo motor 9, a connecting sleeve 10 is coaxially mounted on the coupling 6 and clamped on the nut of the throat screw 5, a pressure sensor is arranged on the inner surface of the steel hoop 3, the pressure sensor is connected with the input end of a controller, and the servo motor 9 is controlled by the controller.

[0022] In the embodiment, the flexible pipe for connecting the wind pipe 1 comprises the connecting pipe segment 2-1 and the flexible pipe segment 2-2, a plurality of steel rings 2-3 are arranged on the flexible pipe segment 2-2, a plurality of sealing rings are arranged on the inner wall of the connecting pipe segment 2-1, and the connecting pipe segment 2-1 is connected to the wind pipe 1 through the automatic fastening device, so that the flexible pipe can meet the requirements of flexible connection between the wind pipes 1, can be frequently moved and can be used in the scene of extending the pipe, and the sealing performance of the connection between the wind pipe 1 and the flexible pipe can be improved.

[0023] In the embodiment, the automatic fastening device for fixing and connecting the telescopic flexible pipe on the air pipe 1 is provided, which comprises a steel band 3, a mounting seat 4, a throat clamp screw 5, a shaft coupling 6, a connecting sleeve 10, a servo motor 9, a bracket 7, a pressure sensor and a controller. In actual use, the pressure value of the steel band 3 applied on the telescopic flexible pipe can be detected in real time by the pressure sensor. When the telescopic flexible pipe and the air pipe 1 are loose or air leakage due to long-term vibration, the pressure value detected by the pressure sensor is less than the set pressure value, which is transmitted to the controller in real time. The servo motor 9 is started by the controller, and the shaft coupling 6, the connecting sleeve 10 and the throat clamp screw 5 are driven to rotate by the motor output shaft 9-1, so as to automatically fasten the steel band 3 until the pressure value detected by the pressure sensor is not less than the set pressure value, so that the connection between the telescopic flexible pipe and the air pipe 1 is always kept in a stable state, and the problem of connection sealing quality decline caused by vibration is avoided.

[0024] In the embodiment, the connecting sleeve 10 is open at one end, and the clamping protrusion 10-1 is arranged on the inner end face of the connecting sleeve 10. The clamping protrusion 10-1 is matched with the groove arranged on the nut of the throat clamp screw 5.

[0025] In the embodiment, the bracket 7 is provided with a battery pack 8, and the wing plate at the bottom of the bracket 7 is connected to the concrete ground by anchor bolts 12. The waist-shaped holes 11 are arranged on the wing plate for the anchor bolts 12 to pass through.

[0026] As Figure 1 and Figure 2As shown, in actual use, the automatic fastening flexible joint device can be used between each air pipe 1 of the ventilation pipeline, and when installing the automatic fastening flexible joint device, first, the connecting pipe section 2-1 needs to be sleeved on the air pipe 1, the steel band 3 is sleeved on the connecting pipe section 2-1, and the sensitivity of the pressure sensor on the inner circular surface of the steel band 3 is checked; secondly, the automatic fastening device is arranged on one side of the air pipe 1, and the specific arrangement method is as follows: first, the coupling 6 and the connecting sleeve 10 are connected to the motor output shaft 9-1, then the servo motor 9 is fixedly installed on the support 7, after that, the wing plate at the bottom of the support 7 is connected to the concrete ground through the anchor bolt 12, at this time, the anchor bolt 12 is in a loosened state; then, the levelness of the throat clamp screw 5 is adjusted by rotating the steel band 3, after determining the horizontal arrangement of the throat clamp screw 5, the support 7 is pushed, and the support 7 will move linearly along the length direction of the waist-shaped hole 11, so that the connecting sleeve 10 is clamped on the nut of the throat clamp screw 5, and then the plurality of anchor bolts 12 are tightened; finally, the steel band 3 is fastened by the automatic fastening device, and the specific fastening method is as follows: the coupling 6, the connecting sleeve 10 and the throat clamp screw 5 are rotated by the controller controlling the servo motor 9, the throat clamp screw 5 will drive the steel band 3 to tightly hold the outer circular surface of the connecting pipe section 2-1, when the pressure value detected by the pressure sensor reaches the set pressure value, the servo motor 9 can be closed, and the installation of the automatic fastening flexible joint device is realized.

[0027] In the process of shield tunneling construction, the pressure sensor can detect the pressure value of the steel band 3 applied to the outer circular surface of the connecting pipe section 2-1 in real time, and the servo motor 9 can be remotely controlled by the controller to realize the automatic fastening of the steel band 3, so that the fastening connection between the telescopic flexible pipe and the air pipe 1 always maintains a stable state, and the use effect is good, which is convenient for popularization and application.

[0028] The above is only a preferred embodiment of the present application, and does not limit the present application in any way. Any simple modification, change and equivalent structure change made according to the technical essence of the present application to the above embodiment are still within the protection scope of the technical solution of the present application.

Claims

1. An automatic fastening flexible joint device for a shield tunneling ventilation duct, characterized by: The invention relates to a telescopic flexible connecting pipe connected to a wind pipe (1) by an automatic fastening device, the telescopic flexible connecting pipe comprising a connecting pipe section (2-1) connected to the wind pipe (1) and a telescopic flexible pipe section (2-2) connected to the connecting pipe section (2-1), a plurality of steel skeleton rings (2-3) being arranged on the telescopic flexible pipe section (2-2) at equal intervals, a plurality of sealing rings being arranged on the inner wall of the connecting pipe section (2-1), the automatic fastening device comprising a bracket (7), a servo motor (9) mounted on the bracket (7) and a steel band (3) sleeved on the outer surface of the connecting pipe section (2-1), one end of the steel band (3) being provided with a mounting seat (4), a throat screw (5) being mounted on the mounting seat (4), a plurality of rectangular inclined grooves (3-1) being arranged on the steel band (3) at equal intervals and engaged with the throat screw (5), a coupling (6) being connected to the motor output shaft (9-1) of the servo motor (9), a connecting sleeve (10) being coaxially mounted on the coupling (6) and used for clamping the nut of the throat screw (5), a pressure sensor being arranged on the inner circular surface of the steel band (3), the pressure sensor being connected to the input end of a controller, and the servo motor (9) being controlled by the controller.

2. An automatic fastening flexible joint device for a ventilation pipe of a shield construction according to claim 1, characterized in that: A battery pack (8) is arranged on the bracket (7), the wing plate at the bottom of the bracket (7) is connected to the concrete ground by anchor bolts (12), and a waist-shaped hole (11) is arranged on the wing plate and used for the anchor bolts (12) to pass through.

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