A construction method for pre-buried pipeline

Abstract

The present disclosure provides a construction method for pre-buried pipelines, comprising the following steps: S1, installing a sealing device at the port of the pipeline, the sealing device comprising an end cap, a first fastening band being provided on the upper side of the end cap and a second fastening band being provided on the lower side, and the end cap being fixed relative to the pipeline port by wrapping and fixing the first fastening band and the second fastening band relative to the pipeline during installation; S2, digging an installation groove matching the size of the pipeline at the construction location, and installing a number of snap devices in the installation groove, the snap devices comprising a support frame, a driving wheel, a left rack and a right rack, and rotating the driving wheel so that the left rack and the right rack abut against the groove wall of the installation groove; S3, placing the pipeline with the sealing device installed above the support frame in the installation groove, and then wrapping the first clip and the second clip around the pipeline; S4, filling the installation groove with soil and rocks until the pipeline is covered. The above scheme realizes the sealing of the pipeline and the fixation of the pipeline relative to the installation groove, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline pre-buried construction, and in particular to a pipeline pre-buried construction method. Background Art

[0002] In the construction work in the field of civil engineering, pre-buried pipes are often involved, that is, first digging a corresponding installation groove at the construction location, then placing the pipes in the installation groove and filling it with soil and rocks.

[0003] Because the installation slot is larger than the pipe, the pipe must first be secured within the slot. The existing method involves placing the pipe in the slot, then tying a ring-shaped iron sheet to the pipe. This iron sheet is then secured within the slot using pins or screws, ultimately securing the pipe within the slot. However, this method, requiring the use of pins or screws in the slot, is not only cumbersome to operate and difficult to disassemble, but can also damage the construction floor or wall where the slot is located, resulting in a significant waste of manpower and resources.

[0004] Furthermore, when pre-buried pipes are installed, they generally need to be sealed to prevent soil and rocks from entering the pipes through the openings. Existing techniques often employ end plates installed at the pipe openings, which are bolted to the pipe openings to achieve this sealing function. However, this method of sealing with end plates and bolts requires specialized wrenches to tighten the bolts, which is cumbersome. Furthermore, mounting holes for the bolts must be pre-machined into the pipes, which not only affects pipe production and processing but also poses a risk of damage to the pipes themselves. Summary of the Invention

[0005] The purpose of the present invention is to provide a construction method for pre-buried pipes which is convenient to construct and can not only achieve lossless fixation of pipes in installation grooves but also achieve convenient sealing of pipe openings.

[0006] In order to solve the above problems, the present invention provides a construction method for pre-buried pipelines, comprising the following steps:

[0007] S1. Install a sealing device at the end of the pipeline, the sealing device comprising an end cap, a first fastening strap provided on the upper side of the end cap and a second fastening strap provided on the lower side, a first left fastening strap extending to the left and a first right fastening strap extending to the right being provided on a side of the first fastening strap away from the end cap, and a second left fastening strap extending to the left and a second right fastening strap extending to the right being provided on a side of the second fastening strap away from the end cap;

[0008] During installation, first seal the end cap to the end position of the pipe, then wrap the first fastening belt around the upper side of the pipe, wrap the second fastening belt around the lower side of the pipe, then wrap the first left tie and the second left tie around the left side of the pipe and connect them together, wrap the first right tie and the second right tie around the right side of the pipe and connect them together. At this point, the end cap is fixed relative to the pipe end;

[0009] S2. Dig an installation groove that matches the size of the pipeline at the construction location, and install several clip devices in the installation groove, wherein the clip devices include a support frame, a driving wheel, a left rack and a right rack, a first clip and a second clip are respectively provided on the left and right sides of the support frame, the driving wheel is rotatably connected to the middle part of the support frame, the left rack and the right rack are slidably connected to the support frame and are respectively located on both sides of the driving wheel, the left rack and the right rack are both engaged with the driving wheel and are symmetrically distributed relative to the driving wheel, and when the driving wheel rotates, the left rack is driven to extend and retract relative to the left side of the support frame and the right rack is driven to extend and retract relative to the right side of the support frame;

[0010] During installation, first place the support frame horizontally at the bottom of the installation slot, then rotate the drive wheel so that the left rack extends from the left side of the support frame and abuts against the left wall of the installation slot, and the right rack extends from the right side of the support frame and abuts against the right wall of the installation slot;

[0011] S3. Place the pipe with the sealing device installed above the support frame in the installation groove. Then, wrap the first clip from the left side of the pipe to the top of the pipe, and wrap the second clip from the right side of the pipe to the top of the pipe. Finally, connect the free ends of the first clip and the second clip to each other, and the pipe can be fixed in the installation groove.

[0012] S4. Fill the installation groove with soil and rocks until the pipeline is covered, and the pipeline pre-buried construction is completed.

[0013] Compared with the existing technology, the above scheme realizes the blocking and fixing of the end cover relative to the pipe port by wrapping and fixing the first fastening band and the second fastening band relative to the pipe in terms of sealing the pipe. It is not only simple and convenient to operate and can be repeatedly disassembled and used, but also does not require additional tools and does not require processing of the structure of the pipe itself, and has good practicality. In terms of fixing the pipe relative to the mounting groove, the above scheme controls the extension or retraction of the left rack and the right rack relative to the support frame through the driving wheel, so that the support frame can be fixed or loosened relative to the mounting groove. It is not only simple and convenient to disassemble and install, but also will not cause damage to the mounting groove. The pipe is then wrapped and fixed by the first and second clips, and finally the fixing function of the pipe in the mounting groove is realized.

[0014] Preferably, one end face of the end cover is provided with a raised clamping platform, which is annular. In step S1, the end face of the end cover provided with the clamping platform is facing the port of the pipe, and the clamping platform is inserted into the port of the pipe while the end cover is sealed to the port position of the pipe, thereby achieving a better blocking effect of the end cover on the pipe port.

[0015] Preferably, the first left tie and the first right tie are both provided with a plurality of locking teeth distributed in the left-right direction, and the second left tie and the second right tie are both provided with a fastener. In step S1, the first left tie and the second left tie are connected to each other by snapping the fastener of the second left tie to the locking teeth of the first left tie, and the first right tie and the second right tie are connected to each other by snapping the fastener of the second right tie to the locking teeth of the first right tie.

[0016] Preferably, the fastener comprises a frame shell, a short shaft and an elastic locking tongue, the short shaft is connected to the frame shell, the elastic locking tongue is connected to the short shaft, the frame shell located at the second left strap is provided with a first opening for inserting the first left strap and a second opening arranged opposite to the corresponding elastic locking tongue, the frame shell located at the second right strap is provided with a first opening for inserting the first right strap and a second opening arranged opposite to the corresponding elastic locking tongue, the elastic locking tongue is tilted to achieve abutment against the lock teeth; in step S1, by inserting the first left strap into the first opening of the frame shell of the second left strap , the elastic locking tongue of the second left tie strap is brought into contact with the locking teeth of the first left tie strap, and when the connection needs to be released, the elastic locking tongue of the second left tie strap is pushed from the second opening of the frame shell of the second left tie strap to separate from the locking teeth of the first left tie strap; by inserting the first right tie strap into the first opening of the frame shell of the second right tie strap, the elastic locking tongue of the second right tie strap is brought into contact with the locking teeth of the first right tie strap, and when the connection needs to be released, the elastic locking tongue of the second right tie strap is pushed from the second opening of the frame shell of the second right tie strap to separate from the locking teeth of the first right tie strap.

[0017] Preferably, the first strap is provided with a plurality of locking teeth distributed along the length direction, and the free end of the second strap is provided with a fastener. In step S2, the first left strap and the second left strap are connected to each other by snapping the fastener of the second strap into the locking teeth of the first strap.

[0018] Preferably, the fastener includes a frame shell, a short shaft and an elastic locking tongue, the short shaft is connected to the frame shell, the elastic locking tongue is connected to the short shaft, the frame shell is provided with a first opening for inserting the first cassette and a second opening arranged opposite the elastic locking tongue, and the elastic locking tongue is arranged at an angle to achieve abutment against the locking teeth; in step S2, by inserting the first cassette into the first opening of the frame shell, the elastic locking tongue located on the second left strap is abutted against the locking teeth located on the first left strap, and when the connection needs to be released, it is only necessary to push the elastic locking tongue and the lock teeth apart from the second opening.

[0019] Preferably, a locking pin is movably connected in the support frame. In step S2, when the driving wheel is rotated so that the left rack extends from the left side of the support frame and abuts against the left groove wall of the mounting groove, and the right rack extends from the right side of the support frame and abuts against the right groove wall of the mounting groove, the locking pin is adjusted to cooperate with the left rack or the right rack or the driving wheel to achieve locking of the left rack or the right rack or the driving wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic top view of a sealing device for a construction method of pre-buried pipelines;

[0021] Figure 2 A bottom-up schematic diagram of a sealing device for a pre-buried pipeline construction method;

[0022] Figure 3 A schematic front view of an end cover of a sealing device for a construction method of pre-buried pipelines;

[0023] Figure 4 A schematic top view of a fastener of a sealing device in a construction method for pre-buried pipelines;

[0024] Figure 5 A schematic cross-sectional view of a construction method for pre-buried pipes before the fastener and the locking teeth are connected;

[0025] Figure 6 A schematic cross-sectional view of a construction method for pre-buried pipes after the fastener and the locking teeth are connected;

[0026] Figure 7 A schematic top view of another embodiment of a sealing device for a pre-buried pipeline construction method;

[0027] Figure 8 A schematic cross-sectional view of another embodiment of a fastener for a construction method for pre-buried pipelines;

[0028] Figure 9 A schematic top view of a clip device for a construction method of pre-buried pipes;

[0029] Figure 10A bottom view schematic diagram of a clip device for a construction method of pre-buried pipes;

[0030] Figure 11 This is a top view schematic diagram of a clip device for a construction method of pre-buried pipelines, with the upper shell plate, first clip and second clip hidden;

[0031] Figure 12 A schematic front view of a support frame of a clip device in a construction method for pre-buried pipes.

[0032] Description of reference numerals:

[0033] 1. End cover; 101. Card table; 102. Fastening layer; 2. First fastening belt; 201. First left tie; 202. First right tie; 3. Second fastening belt; 301. Second left tie; 302. Second right tie; 4. Locking tooth; 5. Fastener; 501. Frame; 511. First opening; 512. Second opening; 502. Short shaft; 503. Elastic locking tongue; 504. Cover; 541. Hook; 505. Block; 6. Anti-slip mark; 7. Support frame; 701. Upper shell plate; 702. Lower shell plate; 703. Slide groove; 704. Connecting column; 8. Driving wheel; 801. Rotating shaft; 802. Limiting part; 9. Left rack; 10. Right rack; 11. First card belt; 12. Second card belt; 13. Locking pin DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. It should also be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, inside, and outside) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] Example 1

[0036] See also Figures 1-12 Embodiment 1 of the present invention provides a construction method for pre-buried pipelines, comprising the following steps:

[0037] S1. Install a sealing device at the end of the pipeline, the sealing device including an end cap 1, a first fastening strap 2 provided on the upper side of the end cap 1 and a second fastening strap 3 provided on the lower side, a first left fastening strap 201 extending to the left and a first right fastening strap 202 extending to the right provided on the side of the first fastening strap 2 away from the end cap 1, and a second left fastening strap 301 extending to the left and a second right fastening strap 302 extending to the right provided on the side of the second fastening strap 3 away from the end cap 1;

[0038] During installation, the pipeline is in a horizontal state. First, seal the end cap 1 to the end position of the pipeline. Then, wrap the first fastening belt 2 around the upper side of the pipeline and the second fastening belt 3 around the lower side of the pipeline. Then, wrap the first left tie 201 and the second left tie 301 around the left side of the pipeline and connect them to each other. Wrap the first right tie 202 and the second right tie 302 around the right side of the pipeline and connect them to each other. At this time, the end cap 1 is fixed relative to the pipeline end.

[0039] S2. Dig an installation groove that matches the size of the pipeline at the construction location, and install several snap-fit ​​devices in the installation groove. The snap-fit ​​devices include a support frame 7, a driving wheel 8, a left rack 9 and a right rack 10. A first clip 11 and a second clip 12 are respectively provided on the left and right sides of the support frame 7. The driving wheel 8 is rotatably connected to the middle part of the support frame 7. The left rack 9 and the right rack 10 are slidably connected to the support frame 7 and are respectively located on both sides of the driving wheel 8. The left rack 9 and the right rack 10 are both engaged with the driving wheel 8 and are symmetrically distributed relative to the driving wheel 8. When the driving wheel 8 rotates, it drives the left rack 9 to extend and retract relative to the left side of the support frame 7 and the right rack 10 to extend and retract relative to the right side of the support frame 7;

[0040] During installation, first place the support frame 7 horizontally at the bottom of the installation groove, then rotate the driving wheel 8 so that the left rack 9 extends from the left side of the support frame 7 and abuts against the left groove wall of the installation groove, and the right rack 10 extends from the right side of the support frame 7 and abuts against the right groove wall of the installation groove;

[0041] S3. Place the pipe with the sealing device installed above the support frame 7 in the installation groove, then wrap the first clip 11 from the left side of the pipe to the top of the pipe, and wrap the second clip 12 from the right side of the pipe to the top of the pipe. Finally, connect the free ends of the first clip 11 and the second clip 12 to each other, and the pipe can be fixed in the installation groove;

[0042] S4. Fill the installation groove with soil and rocks until the pipeline is covered, and the pipeline pre-buried construction is completed.

[0043] Compared with the prior art, the above scheme realizes the blocking and fixing of the end cover 1 relative to the pipe port by wrapping and fixing the first fastening belt 2 and the second fastening belt 3 relative to the pipe in terms of sealing the pipe. It is not only simple and convenient to operate and can be repeatedly disassembled and used, but also does not require additional tools and does not require processing of the pipe structure itself, and has good practicality. In terms of fixing the pipe relative to the mounting groove, the above scheme controls the extension or retraction of the left rack 9 and the right rack 10 relative to the support frame 7 through the driving wheel 8, so that the support frame 7 can be fixed or loosened relative to the mounting groove. It is not only simple and convenient to disassemble and install, but also will not cause damage to the mounting groove. The pipe is then wrapped and fixed by the first and second clips 11 and 12, and finally the fixing function of the pipe in the mounting groove is realized.

[0044] In this embodiment, a raised clamping platform 101 is provided on one end face of the end cover 1, and the clamping platform 101 is annular. In step S1, the end face of the end cover 1 provided with the clamping platform 101 is facing the port of the pipeline. While the end cover 1 is sealed to the port position of the pipeline, the clamping platform 101 is inserted into the port of the pipeline, thereby achieving a better blocking effect of the end cover 1 on the pipeline port.

[0045] In this embodiment, the first left tie 201 and the first right tie 202 are both provided with a plurality of locking teeth 4 distributed along the left-right direction, and the second left tie 301 and the second right tie 302 are both provided with a fastener 5. In step S1, the first left tie 201 and the second left tie 301 are connected to each other by snapping the fastener 5 of the second left tie 301 to the locking teeth 4 of the first left tie 201, and the first right tie 202 and the second right tie 302 are connected to each other by snapping the fastener 5 of the second left tie 301 to the locking teeth 4 of the first right tie 202.

[0046] More specifically, the buckle 5 of the second left tie 301 and the second right tie 302 includes a frame shell 501, a short shaft 502 and an elastic locking tongue 503, the short shaft 502 is connected to the frame shell 501, the elastic locking tongue 503 is connected to the short shaft 502, the frame shell 501 located at the second left tie 301 is provided with a first opening 511 for inserting the first left tie 201 and a second opening 512 arranged opposite to the corresponding elastic locking tongue 503, the frame shell 501 located at the second right tie 302 is provided with a first opening 511 for inserting the first right tie 202 and a second opening 512 arranged opposite to the corresponding elastic locking tongue 503, and the elastic locking tongue 503 is tilted to achieve abutment against the lock tooth 4; in step S1, by inserting the first left tie 201 into the first opening of the frame shell 501 of the second left tie 301 The opening 511 realizes the abutment of the elastic locking tongue 503 located on the second left tie 301 with the locking tooth 4 located on the first left tie 201, and when the connection needs to be released, it is only necessary to push the elastic locking tongue 503 of the second left tie 301 and the locking tooth 4 of the first left tie 201 from the second opening 512 of the frame shell 501 of the second left tie 301 to separate them; by inserting the first right tie 202 into the first opening 511 of the frame shell 501 of the second right tie 302, the abutment of the elastic locking tongue 503 located on the second right tie 302 and the locking tooth 4 located on the first right tie 202 is realized, and when the connection needs to be released, it is only necessary to push the elastic locking tongue 503 of the second right tie 302 and the locking tooth 4 of the first right tie 202 from the second opening 512 of the frame shell 501 of the second right tie 302 to separate them.

[0047] In this embodiment, the first strap 11 is provided with a plurality of locking teeth 4 distributed along the length direction, and the free end of the second strap 12 is provided with a fastener 5. In step S2, the first left strap 201 and the second left strap 301 are connected to each other by snapping the fastener 5 of the second strap 12 into the locking teeth 4 of the first strap 11.

[0048] More specifically, the fastener 5 of the second cassette 12 includes a frame shell 501, a short shaft 502 and an elastic locking tongue 503. The short shaft 502 is connected to the frame shell 501, and the elastic locking tongue 503 is connected to the short shaft 502. The frame shell 501 is provided with a first opening 511 for inserting the first cassette 11 and a second opening 512 arranged opposite the elastic locking tongue 503. The elastic locking tongue 503 is tilted to achieve abutment against the locking tooth 4; in step S2, by inserting the first cassette 11 into the first opening 511 of the frame shell 501, the elastic locking tongue 503 located at the second left strap 301 is abutted against the locking tooth 4 located at the first left strap 201, and when the connection needs to be released, it is only necessary to push the elastic locking tongue 503 from the second opening 512 to separate the locking tooth 4.

[0049] As an improvement to the above embodiment, a locking pin 13 is movably connected within the support frame 7. The locking pin 13 is used to engage with the left rack 9 or the right rack 10 or the drive wheel 8 to lock the left rack 9 or the right rack 10 or the drive wheel 8. In this embodiment, a slide groove 703 extending along the front-to-back direction is provided on the upper side of the support frame 7. The locking pin 13 is slidably connected to the slide groove 703. The end of the locking pin 13 is positioned directly opposite the right rack 10. When the locking pin 13 slides to the rear end of the slide groove 703, the end of the locking pin 13 abuts the right rack 10, thereby locking the right rack 10. It should be understood that the locking pin 13 may also be arranged in other ways, such as by rotating the locking pin 13 to be connected to the upper shell plate 701. By rotating the locking pin 13, the end of the locking pin 13 abuts the left rack 9 or the right rack 10, thereby achieving the same locking function. In step S2, when the driving wheel 8 is rotated so that the left rack 9 extends from the left side of the support frame 7 and abuts against the left groove wall of the mounting groove, and the right rack 10 extends from the right side of the support frame 7 and abuts against the right groove wall of the mounting groove, the locking pin 13 is adjusted to cooperate with the left rack 9 or the right rack 10 or the driving wheel 8 to achieve locking of the left rack 9 or the right rack 10 or the driving wheel 8.

[0050] Example 2

[0051] See also Figures 1-8 , Example 2 of the present invention corresponds to a sealing device in a construction method for pre-buried pipes in Example 1, wherein the sealing device includes an end cover 1 for plugging the pipe opening, a first fastening band 2 is provided on the front side of the end cover 1 and a second fastening band 3 is provided on the rear side, the first fastening band 2 is provided with a first left tie 201 extending to the left and a first right tie 202 extending to the right on the side away from the end cover 1, the second fastening band 3 is provided with a second left tie 301 extending to the left and a second right tie 302 extending to the right on the side away from the end cover 1, the first left tie 201 and the second left tie 301 are used to be wrapped around the left side of the pipe and are detachably connected to each other, the first right tie 202 and the second right tie 302 are used to be wrapped around the right side of the pipe and are detachably connected to each other.

[0052] The above scheme arranges the first fastening band 2 and the second fastening band 3 on the front and rear sides of the end cover 1, respectively. Thus, after the end cover 1 is plugged into the pipe opening, the first fastening band 2 and the second fastening band 3 are respectively attached to the upper and lower sides of the pipe, and then the first left tie 201 and the second left tie 301 are wrapped around the left side of the pipe and connected to each other, and the first right tie 202 and the second right tie 302 are wrapped around the right side of the pipe and connected to each other. At this time, the first fastening band 2 and the second fastening band 3 are tied and fixed relative to the pipe, and the end cover 1 is fixed relative to the pipe opening. Compared with the prior art, the above scheme fixes the end cover 1 relative to the pipe opening by tying and fixing the first fastening band 2 and the second fastening band 3 relative to the pipe. It is not only simple and convenient to operate, but also can be repeatedly disassembled and used. In addition, it does not require additional tools and does not require processing of the pipe structure itself, and has good practicality.

[0053] As an improvement to the above embodiment, a raised clamping platform 101 is provided on the end face of the end cap 1 facing the pipe opening. The clamping platform 101 is annular and is used to be inserted into the pipe opening, thereby achieving a better blocking effect of the end cap 1 on the pipe opening. The clamping platform 101 is preferably in the shape of a circular ring so as to be adapted to most pipe opening shapes. Furthermore, the front and rear side walls of the clamping platform 101 are both provided with a raised fastening layer 102, and the fastening layer 102 is made of an elastic material, such as rubber. Since the first fastening belt 2 and the second fastening belt 3 are respectively provided on the front and rear sides of the end cap 1, the front and rear parts of the end cap 1 will be subjected to a more direct tensile force. Therefore, by providing the fastening layer 102 on the front and rear side walls of the clamping platform 101, a greater frictional resistance can be generated between the fastening layer 102 and the inner wall of the pipe after the clamping platform 101 is inserted into the pipe opening, thereby achieving a more stable blocking effect of the end cap 1 on the pipe opening.

[0054] In this embodiment, the first fastening strap 2 and the second fastening strap 3 are both made of flexible material, and the first left strap 201 and the first right strap 202 are both provided with a plurality of locking teeth 4 distributed along the left and right directions on the side facing away from the pipe, and the left end of the second left strap 301 and the right end of the second right strap 302 are both provided with a fastener 5, which is used to snap-fit ​​to the locking teeth 4, so that the fasteners 5 of the second left strap 301 and the second right strap 302 can realize the mutual connection between the first fastening strap 2 and the second fastening strap 3 by snapping-fitting with the locking teeth 4 of the first left strap 201 and the second right strap 302 respectively. More specifically, the fastener 5 includes a housing 501, a short shaft 502, and an elastic locking tongue 503. The short shaft 502 is connected to the housing 501 in the front-to-back direction. The middle portion of the elastic locking tongue 503 is connected to the short shaft 502. One end of the elastic locking tongue 503 is located below the short shaft 502 and the other end is located above the short shaft 502, so that the elastic locking tongue 503 is arranged at an angle. The left side of the housing 501 located at the second left tie 301 is provided with a first opening 511 for inserting the first left tie 201, and the upper end surface is provided with a second opening 512 arranged opposite the elastic locking tongue 503. The right side of the housing 501 located at the second right tie 302 is provided with a first opening 511 for inserting the first right tie 202, and the upper end surface is provided with a second opening 512 arranged opposite the elastic locking tongue 503. After adopting this structure, by inserting the first left tie 201 into the first opening 511 of the frame shell 501 of the second left tie 301, the corresponding end of the elastic locking tongue 503 located below the short axis 502 can abut against the locking tooth 4 of the first left tie 201, thereby realizing the connection between the first left tie 201 and the second left tie 301; and when it is necessary to release the connection between the first left tie 201 and the second left tie 301, it is only necessary to push the end of the elastic locking tongue 503 located above the short axis 502 from the second opening 512, and the elastic locking tongue 503 can be separated from the locking tooth 4 based on the lever principle; the same applies to the first right tie 202 and the second right tie 301.

[0055] Further, such as Figure 7 and Figure 8 As shown, in another embodiment, the frame 501 is provided with a cover 504 having the same shape as the second opening 512. In this embodiment, one side of the cover 504 is rotatably connected to the frame 501, and the other side of the cover 504 is provided with a hook 541. The outer side of the frame 501 is provided with a block 505 for the hook 541 to engage. Thus, the cover 504 closes the second opening 512, preventing the elastic locking tongue 503 from being accidentally touched. Of course, the cover 504 and the frame 501 can also be connected in other ways, such as a sliding connection, as long as the cover 504 can close the second opening 512.

[0056] As an improvement to the above embodiment, the first fastening band 2 and the second fastening band 3 are both provided with anti-slip marks 6 on the side facing the pipeline. The anti-slip marks 6 are concave-convex structures, thereby increasing the friction resistance of the first fastening band 2 and the second fastening band 3 relative to the pipeline, ensuring a more stable blocking effect of the end cover 1 on the pipeline opening.

[0057] Example 3

[0058] See also Figure 5 、 Figure 6 、 Figures 8-12 The third embodiment of the present invention corresponds to a clip device in a construction method for pre-buried pipes in the first embodiment, and the clip device includes:

[0059] A support frame 7, with a first cassette 11 and a second cassette 12 provided on the left and right sides of the support frame 7, respectively, wherein the free ends of the first cassette 11 and the second cassette 12 are adapted to be detachably connected to each other;

[0060] The driving wheel 8 is rotatably connected to the middle of the support frame 7.

[0061] The left rack 9 and the right rack 10 are slidably connected to the support frame 7 and are respectively located on both sides of the drive wheel 8. The left rack 9 and the right rack 10 are both engaged with the drive wheel 8 and are distributed symmetrically relative to the drive wheel 8. When the drive wheel 8 rotates, it drives the left rack 9 to extend and retract relative to the left side of the support frame 7 and the right rack 10 relative to the right side of the support frame 7.

[0062] When the above solution is used, the support frame 7 is first placed horizontally into the installation groove, and then the driving wheel 8 is rotated so that the left rack 9 and the right rack 10 are extended from the left and right sides of the support frame 7 under the drive of the driving wheel 8 and are clamped to the groove wall of the installation groove, thereby fixing the support frame 7 to the installation groove. Then, the pipe to be laid can be placed on the support frame 7, and the first clamping belt 11 and the second clamping belt 12 are wrapped around the pipe and then connected to each other, finally achieving the fixed laying of the pipe in the installation groove. Compared with the existing technology, the above solution controls the extension or retraction of the left rack 9 and the right rack 10 relative to the support frame 7 through the driving wheel 8, so that the support frame 7 can be fixed or loosened relative to the installation groove. Not only is disassembly and assembly simple and convenient, but it also does not cause damage to the installation groove, and has good practicality.

[0063] In this embodiment, the support frame 7 includes an upper shell plate 701 and a lower shell plate 702 that are spaced apart and connected to each other. The upper shell plate 701 and the lower shell plate 702 are parallel to each other and fixed to each other by a connecting column 704. The driving wheel 8 is located between the upper shell plate 701 and the lower shell plate 702, and a rotating shaft 801 is provided in the middle of the driving wheel 8. The upper and lower ends of the rotating shaft 801 are respectively rotatably connected to the upper shell plate 701 and the lower shell plate 702, thereby ensuring a stable connection between the support frame 7 and the rotating shaft 801. In addition, the upper end of the rotating shaft 801 passes through the upper shell plate 701, and the upper end surface of the rotating shaft 801 is provided with a limit portion 802. The limit portion 802 is used to cooperate with a wrench tool, so that the driving wheel 8 can be easily rotated using the wrench tool. It should be understood that the stopper 802 can be in the form of a spline or spline groove commonly found in the prior art. For example, in this embodiment, the stopper 802 is a triangular spline, so that when the wrench tool is engaged with the stopper 802, the wrench tool can drive the rotation of the drive wheel 8. The left rack 9 and the right rack 10 are both slidably connected between the upper shell 701 and the lower shell 702 in the left-right direction, with the left rack 9 located in front of the drive wheel 8 and the right rack 10 located behind the drive wheel 8, thereby ensuring a compact structure.

[0064] In this embodiment, the first cassette 11 and the second cassette 12 are both made of flexible material. The first cassette 11 is provided with a plurality of locking teeth 4 distributed along the length direction, and the free end of the second cassette 12 is provided with a snap member 5 for cooperating with the locking teeth 4, so that the free ends of the first cassette 11 and the second cassette 12 can be detachably connected by the snap member 5 cooperating with the locking teeth 4 of the first cassette 11. More specifically, the fastener 5 includes a frame shell 501, a short shaft 502 and an elastic locking tongue 503. The upper side of the frame shell 501 is connected to the free end of the second cassette 12, the lower side of the frame shell 501 is provided with a second opening 512, and the left or right side of the frame shell 501 is provided with a first opening 511 for inserting the first cassette 11; the short shaft 502 is connected to the frame shell 501 along the front-to-back direction, the middle part of the elastic locking tongue 503 is connected to the short shaft 502, the left end of the elastic locking tongue 503 is located above the short shaft 502 and the right end is located below the short shaft 502, so that the elastic locking tongue 503 is arranged at an angle. After adopting this structure, by inserting the free end of the first cassette 11 into the first opening 511, the right end of the elastic lock tongue 503 can abut against the lock tooth 4, thereby realizing the connection between the first cassette 11 and the second cassette 12; and when it is necessary to release the connection between the first cassette 11 and the second cassette 12, it is only necessary to push the left end of the elastic lock tongue 503 from the second opening 512, and the right end of the elastic lock tongue 503 can be separated from the lock tooth 4 based on the lever principle.

[0065] Further, such as Figure 8As shown, in another embodiment, the frame 501 is provided with a cover 504 having the same shape as the second opening 512. In this embodiment, one side of the cover 504 is rotatably connected to the frame 501, and the other side of the cover 504 is provided with a hook 541. The outer side of the frame 501 is provided with a block 505 for the hook 541 to engage. Thus, the cover 504 closes the second opening 512, preventing the elastic locking tongue 503 from being accidentally touched. Of course, the cover 504 and the frame 501 can also be connected in other ways, such as a sliding connection, as long as the cover 504 can close the second opening 512.

[0066] As an improvement to the above embodiment, a locking pin 13 is movably connected within the support frame 7. The locking pin 13 is used to engage with the left rack 9 or the right rack 10 or the drive wheel 8 to lock the left rack 9 or the right rack 10 or the drive wheel 8. In this embodiment, a slide groove 703 is provided on the right side of the upper shell 701 along the front-to-back direction. The locking pin 13 is slidably connected to the slide groove 703. The end of the locking pin 13 is positioned directly opposite the right rack 10. When the locking pin 13 slides to the rear end of the slide groove 703, the end of the locking pin 13 abuts the right rack 10, thereby locking the right rack 10. It should be understood that the locking pin 13 can also be arranged in other ways, such as rotatably connected to the upper shell 701. By rotating the locking pin 13, the end of the locking pin 13 abuts the left rack 9 or the right rack 10, thereby achieving the same locking function.

[0067] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. For those skilled in the art, various changes and modifications can be made without departing from the spirit and scope of the present disclosure, and these changes and modifications will fall within the protection scope of the invention.

Claims

1. A construction method for pre-buried pipelines, characterized in that: The following steps are involved: S1. Installing a sealing device at the port of the pipeline, the sealing device comprising an end cap (1), a first fastening belt (2) being provided on the upper side of the end cap (1) and a second fastening belt (3) being provided on the lower side, a first left fastening belt (201) extending to the left and a first right fastening belt (202) extending to the right being provided on the side of the first fastening belt (2) away from the end cap (1), and a second left fastening belt (301) extending to the left and a second right fastening belt (302) extending to the right being provided on the side of the second fastening belt (3) away from the end cap (1); During installation, the end cap (1) is first sealed to the end position of the pipeline, and then the first fastening belt (2) is wound around the upper side of the pipeline, and the second fastening belt (3) is wound around the lower side of the pipeline, and then the first left tie (201) and the second left tie (301) are wound around the left side of the pipeline and connected to each other, and the first right tie (202) and the second right tie (302) are wound around the right side of the pipeline and connected to each other. At this time, the end cap (1) is fixed relative to the pipeline end; S2. Dig out an installation groove that matches the size of the pipeline at the construction location, and install several snap-fit ​​devices in the installation groove, wherein the snap-fit ​​devices include a support frame (7), a driving wheel (8), a left rack (9) and a right rack (10), and a first clip (11) and a second clip (12) are respectively provided on the left and right sides of the support frame (7), and the driving wheel (8) is rotatably connected to the middle part of the support frame (7), and the left rack (9) and the right rack (10) are slidably connected to the support frame (7) and are respectively located on both sides of the driving wheel (8), and the left rack (9) and the right rack (10) are both engaged with the driving wheel (8) and are centrally symmetrically distributed relative to the driving wheel (8). When the driving wheel (8) rotates, it drives the left rack (9) to extend and retract relative to the left side of the support frame (7) and the right rack (10) to extend and retract relative to the right side of the support frame (7); During installation, the support frame (7) is first placed horizontally at the bottom of the installation groove, and then the driving wheel (8) is rotated so that the left rack (9) extends from the left side of the support frame (7) and abuts against the left groove wall of the installation groove, and the right rack (10) extends from the right side of the support frame (7) and abuts against the right groove wall of the installation groove; S3, placing the pipe with the sealing device installed above the support frame (7) in the installation groove, then winding the first clamping belt (11) from the left side of the pipe to the top of the pipe, winding the second clamping belt (12) from the right side of the pipe to the top of the pipe, and finally connecting the free ends of the first clamping belt (11) and the second clamping belt (12) to each other, so that the pipe can be fixed in the installation groove; S4. Fill the installation groove with soil and rocks until the pipeline is covered. The pipeline pre-buried construction is completed. A locking pin (13) is movably connected in the support frame (7). In step S2, when the driving wheel (8) is rotated so that the left rack (9) extends from the left side of the support frame (7) and abuts against the left groove wall of the installation groove, and the right rack (10) extends from the right side of the support frame (7) and abuts against the right groove wall of the installation groove, the locking pin (13) is adjusted to fit the left rack (9) or the right rack (10) or the driving wheel (8) to achieve locking of the left rack (9) or the right rack (10) or the driving wheel (8).

2. A construction method for pre-buried pipelines according to claim 1, characterized in that: One end face of the end cover (1) is provided with a raised clamping platform (101), and the clamping platform (101) is annular. In step S1, the end face of the end cover (1) provided with the clamping platform (101) is directed toward the port of the pipeline, and the clamping platform (101) is inserted into the port of the pipeline while the end cover (1) is sealed to the port position of the pipeline.

3. A construction method for pre-buried pipelines according to claim 1, characterized in that: The first left tie (201) and the first right tie (202) are both provided with a plurality of locking teeth (4) distributed in the left-right direction, and the second left tie (301) and the second right tie (302) are both provided with a fastener (5). In step S1, the first left tie (201) and the second left tie (301) are connected to each other by snapping the fastener (5) of the second left tie (301) onto the locking teeth (4) of the first left tie (201), and the first right tie (202) and the second right tie (302) are connected to each other by snapping the fastener (5) of the second right tie (302) onto the locking teeth (4) of the first right tie (202).

4. A construction method for pre-buried pipelines according to claim 3, characterized in that: The buckle (5) comprises a frame shell (501), a short shaft (502) and an elastic locking tongue (503); the short shaft (502) is connected to the frame shell (501); the elastic locking tongue (503) is connected to the short shaft (502); the frame shell (501) located at the second left strap (301) is provided with a first opening (511) for inserting the first left strap (201) and a second opening (512) arranged opposite to the corresponding elastic locking tongue (503) ), a frame shell (501) located at the second right tie (302) is provided with a first opening (511) for inserting the first right tie (202) and a second opening (512) arranged opposite to the corresponding elastic lock tongue (503), and the elastic lock tongue (503) is arranged obliquely to achieve abutment against the lock tooth (4); in step S1, by inserting the first left tie (201) into the first opening (511) of the frame shell (501) of the second left tie (301), The elastic locking tongue (503) of the second left tie (301) is brought into contact with the locking teeth (4) of the first left tie (201). When the connection needs to be released, the elastic locking tongue (503) of the second left tie (301) is pushed from the second opening (512) of the frame (501) of the second left tie (301) to separate from the locking teeth (4) of the first left tie (201). The first right tie (202) is inserted into the second right tie (301). 02), the elastic locking tongue (503) of the second right tie (302) is brought into contact with the locking tooth (4) of the first right tie (202), and when the connection needs to be released, the elastic locking tongue (503) of the second right tie (302) is pushed from the second opening (512) of the frame (501) of the second right tie (302) to separate the locking tooth (4) of the first right tie (202).

5. A construction method for pre-buried pipelines according to claim 1, characterized in that: The first cassette (11) is provided with a plurality of locking teeth (4) distributed along the length direction, and the free end of the second cassette (12) is provided with a snap-fit ​​component (5). In step S2, the first cassette (11) and the second cassette (12) are connected to each other by snapping the snap-fit ​​component (5) of the second cassette (12) into the locking teeth (4) of the first cassette (11).

6. A construction method for pre-buried pipelines according to claim 5, characterized in that: The buckle (5) comprises a frame shell (501), a short shaft (502) and an elastic locking tongue (503), wherein the short shaft (502) is connected to the frame shell (501), and the elastic locking tongue (503) is connected to the short shaft (502). The frame shell (501) is provided with a first opening (511) for inserting the first cassette (11) and a second opening (512) arranged opposite to the elastic locking tongue (503), and the elastic locking tongue (503) is arranged obliquely to achieve abutment with the locking tooth (4); in step S2, by inserting the first cassette (11) into the first opening (511) of the frame shell (501), the elastic locking tongue (503) located on the second left strap (301) and the locking tooth (4) located on the first left strap (201) are abutted, and when the connection needs to be released, it is only necessary to push the elastic locking tongue (503) from the second opening (512) to separate the locking tooth (4).

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