A support device and method for controlling deformation rate of small-diameter flexible pipeline installation

Abstract

The present invention provides a support device and method for controlling the deformation rate of small-diameter flexible pipe installation, comprising: an upper support plate, a lower support plate, and a vertical support rod connected between the upper support plate and the lower support plate, characterized in that the vertical support rod is respectively connected to the upper support plate and the lower support plate through a socket sleeve, and the vertical support rod rotates around the upper support plate and the lower support plate respectively through the socket sleeve. The beneficial effect of the present invention is to control the deformation of the small-diameter flexible pipe caused by its own insufficient anti-deformation ability during the trench backfilling process, reduce the pipe deformation rate, reduce rework, and can play a good control on the pipe leakage caused during the construction of the drainage pipe, and the device is simple to operate and has low manufacturing cost, easy to assemble and disassemble, and convenient to maintain.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal engineering drainage pipeline construction, and in particular relates to a supporting device and method for controlling the installation deformation rate of a small-diameter flexible pipeline. Background Art

[0002] In the existing construction of flexible pipelines for municipal engineering, the deformation control of pipelines has always been a key point and difficulty. The deformation rate of pipelines should meet the requirements; the deformation rate of general steel pipes or ductile iron pipelines should not exceed 2%, and the deformation rate of chemical building materials pipelines should not exceed 3%; when exceeded, corresponding treatment measures should be taken. For pipelines with an inner diameter greater than 800mm, vertical supports should be set inside the pipes during the installation and backfilling of the pipelines to prevent the pipelines from being deformed by the construction load, especially at the pipe docking position. Due to the large inner diameter of the pipeline, construction personnel can enter directly and manually enter the pipeline to support the pipe wall. However, for pipelines with an inner diameter of less than or equal to 800mm (hereinafter referred to as small diameter), the pipe diameter is small, and it is difficult for manual entry to support the pipe wall. The inner wall of the small-diameter flexible pipeline lacks support during the backfilling of the trench. The pipeline will inevitably be affected by the construction load and will produce a certain deformation. This deformation is not easy to control, which can easily lead to gaps at the docking point, and water leakage during drainage will cause damage to the roadbed. Summary of the invention

[0003] The problem to be solved by the present invention is to provide a support device and method for controlling the installation deformation rate of a small-diameter flexible pipeline, which is particularly suitable for supporting the small-diameter flexible pipeline during the trench backfilling process.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a support device for controlling the deformation rate of small-diameter flexible pipe installation, comprising: an upper support plate, a lower support plate and a vertical support rod connected between the upper support plate and the lower support plate, the vertical support rod is respectively connected to the upper support plate and the lower support plate through a socket sleeve, and the vertical support rod rotates around the upper support plate and the lower support plate respectively through the socket sleeve.

[0005] Furthermore, it also includes: a self-locking device, a slide bar, a slide bar pull ring and a device pull ring, wherein the device pull ring is respectively connected to the front end and the rear end of the lower support plate along the length direction, and is used to pull the support device to move in the pipeline;

[0006] The slide pull ring is connected to the socket sleeve near the lower support plate, and is used to pull the socket sleeve to move;

[0007] The lower end of the slide bar is connected to the inner side of the lower support plate, and the upper end of the slide bar is connected to the bottom of the socket sleeve, and the socket sleeve drives the slide bar to move along the length direction of the lower support plate;

[0008] The self-locking device comprises a spring sheet and a ball, and the spring sheet and the ball are both arranged inside the slide bar and used for locking the slide bar.

[0009] Furthermore, the slide bar includes: an upper slide, a lower base and seals arranged at both ends of the slide bar, the lower base is connected to the inner side of the lower support plate, the upper slide bar is connected to the bottom of the socket sleeve, the upper slide bar is connected to the lower base in an inverted manner, and the upper slide bar moves along the lower base.

[0010] Furthermore, it also includes: a support diagonal rod and a support diagonal rod guide rail, wherein the support diagonal rod is connected to the inner side of the lower support plate through the support diagonal rod guide rail, the support diagonal rod moves along the support diagonal rod guide rail through a roller arranged at one end, and the side of the support diagonal rod away from the lower support plate is connected to the socket sleeve for supporting the vertical support rod from the side;

[0011] The supporting diagonal rod guide rails are symmetrically arranged on the inner side of the lower support plate along the vertical support rod, and detachable guide rail seals are arranged at both ends of the supporting diagonal rod guide rails.

[0012] Furthermore, the upper support plate is an upper arc plate with spherical plates spliced ​​at both ends, and the radius of the upper arc plate is the same as the radius of the inner wall of the pipe to be supported.

[0013] Furthermore, the lower support plate is a lower arc plate with spherical plates spliced ​​at both ends, the radius of the lower arc strip plate is the same as the radius of the inner wall of the pipe to be supported, and the arc length of the lower arc plate is not less than the arc length of the upper arc plate;

[0014] Preferably, the arc length of the lower arc plate is twice the arc length of the upper arc plate.

[0015] Furthermore, the vertical support rods are arranged in multiple groups in parallel along the length direction of the lower support plate;

[0016] The front end of the socket sleeve close to the lower support plate, the front end along the length direction of the lower support plate, and the rear end of the socket sleeve at the rear are respectively connected with the slide pull ring, and the socket sleeve is connected to the lower support plate through the slide, and the slide drives the vertical support rod to rotate through the socket sleeve, so as to lower the height of the support device.

[0017] Furthermore, it also includes: a guide wheel, which is symmetrically connected to both sides of the upper support plate and the lower support plate, and is used for moving in the pipe wall.

[0018] To achieve the above object, the present invention also provides a method for using a support device for controlling the deformation rate of a small-diameter flexible pipeline installation, the steps of which are:

[0019] S1: Assemble the support device according to the connection relationship;

[0020] S2: unlocking the support device, lowering the height of the support device, and pulling the support device into the support point of the pipeline along the drainage direction in the construction pipeline;

[0021] S3: Lock the support device, raise the height of the support device, and backfill the trench. After the trench is backfilled, unlock the support device and pull it out along the drainage direction, and the work is completed.

[0022] Furthermore, a self-locking device, a slide bar, a slide bar pull ring and a device pull ring, wherein the device pull ring is respectively connected to the front end and the rear end of the lower support plate along the length direction; the slide bar pull ring is respectively connected to the front end and the rear end of the socket sleeve close to the lower support plate; the lower end of the slide bar is connected to the inner side of the lower support plate, the upper end of the slide bar is connected to the bottom of the socket sleeve, and the slide bar drives the socket sleeve to move along the length direction of the lower support plate; the self-locking device is arranged inside the slide bar, and is used to lock the slide bar;

[0023] In S2: in the construction pipeline, along the drainage direction, the traction rope is connected to the slide bar pull ring and the device pull ring respectively, and the slide bar pull ring close to the self-locking device and the device pull ring far from the self-locking device are pulled to unlock the slide bar;

[0024] In S3: the slider pull ring away from the self-locking device and the device pull ring close to the self-locking device are pulled to complete the locking of the slider.

[0025] The above technical solution has the following advantages:

[0026] The support device can control the deformation of small-diameter flexible pipes due to their insufficient anti-deformation ability during the trench backfilling process, reduce the pipe deformation rate, reduce rework, and effectively control the pipe leakage caused during the construction of drainage pipes. The device is simple to operate, low in manufacturing cost, easy to assemble and disassemble, and convenient to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a side view of a supporting device according to an embodiment of the present invention;

[0028] Figure 2 is a front view of a supporting device according to an embodiment of the present invention;

[0029] Figure 3It is a plan view of a supporting device according to an embodiment of the present invention.

[0030] In the figure:

[0031] 1. Upper support plate 2. Lower support plate 3. Vertical support rod

[0032] 4. Socket sleeve 5. Guide wheel 6. Support diagonal rod guide rail

[0033] 7. Support diagonal rod 8. Self-locking device 9. Sliding bar

[0034] 10. Slide pull ring 11. Device pull ring DETAILED DESCRIPTION

[0035] The present invention will be further described below in conjunction with embodiments and drawings:

[0036] In one embodiment of the present invention, Figure 1-3 As shown, a support device for controlling the deformation rate of a small-diameter flexible pipeline installation includes: an upper support plate 1, a lower support plate 2, and a vertical support rod 3 and a socket sleeve 4 connected between the upper support plate 1 and the lower support plate 2, a support diagonal rod 7 and a support diagonal rod guide rail 6, and also includes: a self-locking device 8, a slide bar 9, a slide bar pull ring 10, a device pull ring 11 and a guide wheel 5, wherein the vertical support rod 3 is respectively connected to the upper support plate 1 and the lower support plate 2 through the socket sleeve 4, and the vertical support rod 3 rotates around the upper support plate 1 and the lower support plate 2 through the socket sleeve 4.

[0037] The support diagonal rod 7 and the support diagonal rod guide rail 6 are used to laterally support the vertical support rod 3 and stabilize the support device. The self-locking device 8, the slide bar 9, the slide bar pull ring 10, and the device pull ring 11 are used to control the locking and unlocking of the device.

[0038] like Figure 1-2 As shown, the upper support plate 1 is an upper arc plate with spherical plates spliced ​​at both ends, and its shape is similar to a capsule cut along the length direction; in this embodiment, the upper support plate 1 is made of an upper arc long steel plate with a central angle of 60° in the middle and spherical steel plates at both ends. The radius of the upper arc long steel plate is the same as the radius of the inner wall of the pipe to be supported. The function of the spherical steel plates at both ends is to prevent the support device from being stuck when sliding in the pipe. The upper support plate 1 transfers the received upper load of the pipe to the lower part.

[0039] like Figure 1-2As shown, the lower support plate 2 is a lower arc plate with spherical plates spliced ​​at both ends, and its shape is similar to a capsule that is cut in the length direction and then a small part is cut off at both ends; in this preferred embodiment, the lower support plate 2 is made of a lower arc long steel plate with a central angle of 120° in the middle and spherical shell steel plates at both ends. The radius of the lower arc long steel plate is the same as the radius of the inner wall of the pipe to be supported. The function of the spherical shell steel plates at both ends is to prevent the device from being stuck when sliding in the pipe. The lower support plate 2 distributes the load handed down from the upper part to the lower inner wall of the pipe.

[0040] Figure 1-2 As shown, the vertical support rod 3 is respectively connected to the upper support plate 1 and the lower support plate 2 through the socket sleeve 4. The vertical support rod 3 can be processed with steel bars, and the socket sleeve 4 is a rotatable socket sleeve made of steel. In this embodiment, there are 4 vertical support rods arranged in parallel, which are respectively connected to the upper support plate 1 and the lower support plate through the socket sleeve 4. As an alternative, the number of vertical support rods 3 can be increased or decreased according to the support needs of the pipeline. The socket sleeve 4 is connected to the lower support plate 2 through the sliding bar 9, and the sliding of the sliding bar 9 drives the socket sleeve 4 to move, and the socket sleeve 4 drives the vertical support rod 3 to rotate. The socket sleeve 4 causes the vertical support rod 3 to rotate with the upper support plate 1 and the lower support plate 2 to deform the support device. After the support device is deformed, the vertical height can be reduced to facilitate the support device to enter the pipeline.

[0041] like Figure 1-3 As shown, the supporting diagonal rod 7 and the supporting diagonal rod guide rail 6 are both made of steel, and removable seals are provided at both ends of the supporting diagonal rod guide rail 6. The supporting diagonal rod guide rail 6 and the supporting diagonal rod 7 are symmetrically arranged along the vertical support rod 3, and the supporting diagonal rod guide rail 7 is fixedly connected to the inner wall of the lower support plate 2; a roller is provided at one end of the supporting diagonal rod 7, and the roller moves along the supporting diagonal rod guide rail 6, thereby controlling the supporting diagonal rod 7 to move in a line; the other end of the supporting diagonal rod 7 is connected to the socket sleeve 4, and the supporting diagonal rod 7 is used to support the vertical support rod 3 and stabilize the structure of the supporting device.

[0042] like Figure 1-3 As shown, the self-locking device 8 includes a spring piece and a ball bearing, both of which are arranged inside the slide bar 9 and are used to control the sliding state of the slide bar 9; when the slide bar moves to the position of the self-locking device 8, the slide bar 9 is locked by the joint action of the spring piece and the ball bearing, and the principle is the same as that of the self-locking device of the umbrella handle of the folding umbrella. Before the support device works or after the work is completed, the slide bar 9 is unlocked to slide and deform the support device, and when the support device works, the slide bar 9 is locked to fix the support device to work normally. The locked state needs to be achieved by controlling the slide bar pull ring 10 and the device pull ring 11 in different directions.

[0043] The slide bar 9 includes: an upper slide, a lower base and blocks arranged at both ends of the slide bar. The lower end of the lower base of the slide bar 9 is fixedly connected to the lower support plate 2. The upper slide bar of the slide bar 9 is fixedly connected to the socket sleeve 4. The upper slide bar and the lower base are connected in an inverted manner. The upper slide bar slides along the lower base, thereby driving the socket sleeve 4 and the lower support plate 2 to slide relative to each other, so as to achieve the purpose of deforming the support device and is not easily damaged. The slide bar 9 is a steel slide bar, which can bear the load transmitted from the upper part.

[0044] The self-locking device 8 realizes the deformation of the entire supporting device by controlling the sliding state of the slide bar 9. The slide bar pull ring 10 and the device pull ring 11 respectively play the role of traction.

[0045] like Figure 1-3 The device pull ring 11 shown is fixedly connected to the front and rear ends of the lower support plate 2 along the length direction, and is used to pull the entire support device to move in the pipeline, and at the same time cooperate with the slide pull ring 10 to complete the locking of the slide 9.

[0046] like Figure 1-3 As shown, a slide pull ring 10 is fixedly connected to the front end of the socket sleeve 4 at the front end and the rear end of the socket sleeve 4 at the rear end along the length direction close to the lower support plate 2, respectively. The socket sleeve 4 is driven to move by the slide pull ring 10, thereby pulling the slide 9 to complete the locking state.

[0047] like Figure 1-3 The guide wheel 5 shown is a rubber guide wheel. The guide wheel 5 adopts an independent rotating rod of a torsion spring and is hinged to the upper support plate 1 and the lower support plate 2 respectively. A pair of guide wheels 5 are symmetrically arranged on both sides of the upper support plate 1 and the lower support plate 2 to ensure that the device can be adjusted according to the smoothness of the pipe wall when moving in the pipeline without skewing, so as to guide the device to move smoothly.

[0048] The working process of an embodiment of the present invention is as follows: assemble the supporting device; insert a traction rope into the pipeline to be constructed along the drainage direction, connect the traction rope through the device pull ring 11, and connect the three ropes to the remaining slide pull rings 10 and the device pull rings 11 respectively, pull the slide pull ring 10 close to the self-locking device 8 and the device pull ring 11 away from the self-locking device 8, the socket sleeve 4 moves to drive the slide 9 to move, and complete the unlocking; put the unlocked supporting device into the supporting point in the pipeline along the drainage direction, pull the slide pull ring 10 away from the self-locking device 8 and the device pull ring 11 close to the self-locking device 8, the socket sleeve 4 moves to drive the slide 9 to move in the opposite direction, and complete the locking of the slide 9; backfill the trench, after the trench backfilling is completed, pull the slide pull ring 10 close to the self-locking device 8 and the device pull ring 11 away from the self-locking device 8 to complete the unlocking of the slide 9, pull the supporting device out along the drainage direction, and the work is completed.

[0049] The working principle of the present invention is as follows: the support device is controlled by a rope connecting a slide pull ring 10 and a device pull ring 11 in the pipeline. The locking is completed by pulling the slide pull ring 10 away from the self-locking device 8 and the device pull ring 11 close to the self-locking device 8. The unlocking is completed by pulling the slide pull ring 10 close to the self-locking device 8 and the device pull ring 11 away from the self-locking device 8. The vertical height of the support device in the unlocked state is lower than that in the locked state. In the unlocked state, it is easy to enter and exit the interior of the pipeline by a rope. In the locked state, the height of the support device is consistent with the height inside the pipeline. The load borne on the upper part of the pipeline can be well transmitted to the support device, and then delivered to the lower part of the pipeline by the support device, thereby reducing the deformation rate of the pipeline.

[0050] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A method for controlling the installation deformation rate of a small-diameter flexible pipeline, characterized in that: A support device is used, which includes: an upper support plate, a lower support plate and a vertical support rod connected between the upper support plate and the lower support plate, the vertical support rod is respectively connected to the upper support plate and the lower support plate through a socket sleeve, and the vertical support rod rotates around the upper support plate and the lower support plate respectively through the socket sleeve; it also includes: a self-locking device, a slide bar, a slide bar pull ring and a device pull ring, the device pull ring is respectively connected to the front end and the rear end of the lower support plate along the length direction The end is used to pull the support device to move in the pipeline; the slide pull ring is respectively connected to the front end and the rear end of the socket sleeve close to the lower support plate, and is used to pull the socket sleeve to move; the lower end of the slide is connected to the inner side of the lower support plate, and the upper end of the slide is connected to the bottom of the socket sleeve, and the slide drives the socket sleeve to move along the length direction of the lower support plate; the self-locking device includes a spring sheet and a ball, and the spring sheet and the ball are both arranged inside the slide, and are used to lock the slide; The control method comprises the following steps: S1: Assemble the support device according to the connection relationship; S2: Connect the traction rope to the slide bar pull ring and the device pull ring respectively along the drainage direction in the construction pipeline, pull the slide bar pull ring close to the self-locking device and the device pull ring away from the self-locking device to complete the unlocking of the slide bar; unlock the support device, lower the height of the support device, and pull the support device into the support point of the pipeline along the drainage direction in the construction pipeline; S3: Pull the slide pull ring away from the self-locking device and the device pull ring close to the self-locking device to complete the locking of the slide; lock the support device, lift the height of the support device, and backfill the trench. After the trench backfilling is completed, unlock the support device, pull the support device out along the drainage direction, and the work is completed.

2. A method for controlling the installation deformation rate of a small-diameter flexible pipeline according to claim 1, characterized in that: The slide bar includes: an upper slide, a lower base and blocks arranged at both ends of the slide bar, the lower base is connected to the inner side of the lower support plate, the upper slide bar is connected to the bottom of the socket sleeve, the upper slide bar is connected to the lower base in an inverted manner, and the upper slide bar moves along the lower base.

3. A method for controlling the installation deformation rate of a small-diameter flexible pipeline according to claim 1, characterized in that: Also includes: A support diagonal rod and a support diagonal rod guide rail, wherein the support diagonal rod is connected to the inner side of the lower support plate through the support diagonal rod guide rail, the support diagonal rod moves along the support diagonal rod guide rail through a roller arranged at one end, and the side of the support diagonal rod away from the lower support plate is connected to the socket sleeve for supporting the vertical support rod from the side; The supporting diagonal rod guide rails are symmetrically arranged on the inner side of the lower support plate along the vertical support rod, and detachable guide rail seals are arranged at both ends of the supporting diagonal rod guide rails.

4. A method for controlling the installation deformation rate of a small-diameter flexible pipe according to claim 1, characterized in that: The upper support plate is an upper arc plate with spherical plates spliced ​​at both ends, and the radius of the upper arc plate is the same as the radius of the inner wall of the pipe to be supported.

5. A method for controlling the installation deformation rate of a small-diameter flexible pipeline according to claim 4, characterized in that: The lower support plate is a lower arc plate with spherical plates spliced ​​at both ends. The radius of the lower arc plate is the same as the radius of the inner wall of the pipe to be supported, and the arc length of the lower arc plate is not less than the arc length of the upper arc plate.

6. A method for controlling the installation deformation rate of a small-diameter flexible pipeline according to claim 1, characterized in that: The vertical support rods and the socket sleeves are arranged in multiple groups in parallel along the length direction of the lower support plate; The front end of the socket sleeve close to the lower support plate, the front end along the length direction of the lower support plate, and the rear end of the socket sleeve at the rear are respectively connected with the slide pull ring, and the socket sleeve is connected to the lower support plate through the slide, and the slide drives the vertical support rod to rotate through the socket sleeve, so as to lower the height of the support device.

7. A method for controlling the installation deformation rate of a small-diameter flexible pipeline according to claim 1, characterized in that: Also includes: Guide wheels are symmetrically connected to both sides of the upper support plate and the lower support plate, and are used for moving in the pipe wall.

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