A fixed support device for PCCP pipelines

Abstract

The utility model relates to pipeline mounting device field discloses a fixed support device of PCCP pipeline, including bottom piece and top block, bottom piece is equipped with first arc -shaped groove, and top block is equipped with second arc -shaped groove, after top block connects bottom piece, first arc -shaped groove and second arc -shaped groove splice into circular through -hole for fixed support PCCP pipeline, still include first buffer and second buffer, first buffer includes C -shaped board, and the opening of C -shaped board faces bottom piece and top block, and the both ends of C -shaped board are provided with mounting plate respectively, and are connected to the left side of top block and bottom piece by first bolt respectively, and second buffer and first buffer structure are same, and symmetrically connect to the right side of bottom piece and top block, when facing the impact of side slope rockfall, first buffer and second buffer carry out buffering first, avoid external impact direct action on fixed support device, then carry out buffering to external impact through buffer spring, further reduce the possibility of damaging PCCP pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipeline installation devices, specifically to a fixed support device for PCCP pipelines. Background Technology

[0002] PCCP pipe is short for Prestressed Concrete Cylinder Pipe. It is a composite pipe composed of steel pipe, concrete, high-strength steel wire and cement mortar. It is widely used in long-distance water transmission trunk lines and various water conservancy and municipal engineering projects.

[0003] In the actual installation process of PCCP pipelines, in order to locate the installation position of the pipeline, a support block with an arc groove is usually set at the bottom of the pipeline to support and protect the pipeline and determine the pipeline position.

[0004] Chinese patent with publication number CN212268213U discloses a PCCP pipe fixing device for water conservancy engineering construction, including a support block and a pressure block. The support block and the pressure block are hinged on one side of their opposite surfaces. The pressure block is located above the support block. The opposite surfaces of the support block and the pressure block are provided with arc-shaped grooves for placing PCCP pipes. An arc-shaped pressure plate is movably arranged in the upper arc-shaped groove.

[0005] For buried PCCP pipelines passing through mountainous areas, or those installed on steep slopes, they frequently face the impact of falling rocks during actual use. Due to the lack of effective impact resistance design in the fixing device, when rocks roll down the slope alongside the PCCP pipeline, they can directly impact the side of the fixing device, causing deformation or damage. This can lead to PCCP pipeline displacement or even deformation and damage. Furthermore, the terrain in mountainous areas often has varying elevations. Since the PCCP pipeline in this fixing device is held in place by a pressure block within an arc-shaped groove, additional height adjustments are required when using the device in mountainous areas. Utility Model Content

[0006] This utility model provides a fixed support device for PCCP pipelines to solve the problem that existing PCCP pipeline fixing devices are prone to deformation or damage when rocks roll down the slope surface and directly impact the side wall of the fixing device.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A fixed support device for a PCCP pipe includes a base block and a top block; the base block has a first arc-shaped groove, and the top block has a second arc-shaped groove; after the top block is connected to the base block, the first arc-shaped groove and the second arc-shaped groove are joined together to form a circular through hole for fixing and supporting the PCCP pipe; it also includes a first buffer member and a second buffer member; the first buffer member includes a C-shaped plate, the opening of the C-shaped plate facing the base block and the top block; mounting plates are respectively provided at both ends of the C-shaped plate, and are respectively connected to the left side of the top block and the base block by first bolts; The second buffer has the same structure as the first buffer and is symmetrically connected to the right side of the bottom block and the top block.

[0008] Specifically, the mounting plate is provided with through holes, through which the first bolt passes to connect the mounting plate to the side walls of the bottom block and the top block respectively; the mounting plate is fitted onto the first bolt and can move along the length of the first bolt; a buffer spring is also fitted on the outside of the screw of the first bolt to buffer the movement of the mounting plate toward the bottom block and the top block.

[0009] Furthermore, each mounting plate is equipped with two first bolts and two buffer springs.

[0010] In particular, the C-shaped plate is also provided with several weight-reducing grooves.

[0011] Specifically, the width of the C-shaped plate is greater than the width of the top and bottom blocks.

[0012] Specifically, it also includes a base having mounting holes, and a base block is attached to the upper surface of the base.

[0013] Furthermore, the upper surface of the base is provided with at least two positioning rods, and the lower surface of the top block is provided with positioning holes corresponding to the positioning rods. The top of the positioning rod passes through the bottom block and is inserted into the positioning hole, so that both the bottom block and the top block slide with the positioning rod. The base has a groove in the middle, and a first horizontal bar is provided in the groove along the front-to-back direction. A top support block is also provided in the groove, and the top support block is slidably engaged with the first horizontal bar. A second horizontal bar is also provided in the groove, passing through the groove and the top support block. The second horizontal bar is parallel to the first horizontal bar, and the second horizontal bar has an external thread that is threadedly engaged with the top support block. The top support block has a first inclined surface at its upper end, and a second inclined surface that fits against the first inclined surface at its lower end. The first and second inclined surfaces slide against each other in the front-to-back direction.

[0014] Furthermore, the end of the second crossbar is provided with a force-applying part, and a protective cap is provided on the outside of the force-applying part.

[0015] Specifically, the bottom block is provided with limiting grooves on the left and right sides of its upper surface, and the top block is provided with limiting blocks that cooperate with the limiting grooves on the left and right sides of its lower surface. The second bolt passes through the limiting block and is screwed into the side wall of the limiting groove to connect the top block and the bottom block.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: By connecting a first buffer to the left side of the top and bottom blocks and a second buffer to the right side of the top and bottom blocks, when falling rocks impact the fixed support device along the slope surface next to the PCCP pipeline, the C-shaped plates of the two buffers first buffer the impact, preventing the external impact from acting directly on the fixed support device. This avoids the fixed support device from being deformed by the external impact, which could lead to the PCCP pipeline shifting or even deforming. Furthermore, the buffer springs also buffer the external impact, preventing the external impact from directly impacting the top and bottom blocks through the C-shaped plates, further reducing the possibility of damage to the top and bottom blocks causing deformation that could affect the PCCP pipeline.

[0017] In addition, by sliding the top support block on the first crossbar in the groove, the first inclined surface at the upper end of the top block supports the second inclined surface at the lower end of the bottom block. Through the cooperation of the first and second inclined surfaces, the height of the bottom block and the top block can be adjusted to adapt to the height undulations of the mountainous ground. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the exploded structure of the device of this utility model.

[0020] Figure 3 This is a schematic diagram of the bottom structure of the top block.

[0021] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure of the AA plane.

[0022] The meanings of the labels in the diagram are as follows: Base—1; Positioning rod—101; Groove—102; First crossbar—103; Top support block—104; Second crossbar—105; First inclined surface—106; Second inclined surface—107; Force application part—108; Mounting hole—109; Bottom block—2; First arc groove—201; Limiting groove—202; Top block—3; Second arc groove—301; Limiting block—302; Second bolt—303; Positioning hole—304; C-shaped plate—401; mounting plate—402; first bolt—403; buffer spring—404; weight reduction groove—405. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0024] like Figure 1 and Figure 2 As shown, a fixed support device for a PCCP pipe includes a bottom block 2 and a top block 3; the bottom block 2 is provided with a first arc-shaped groove 201, and the top block 3 is provided with a second arc-shaped groove 301; after the top block 3 is connected to the bottom block 2, the first arc-shaped groove 201 and the second arc-shaped groove 301 are joined together to form a circular through hole for fixing and supporting the PCCP pipe; it also includes a first buffer and a second buffer. The first buffer includes a C-shaped plate 401, the opening of which faces the bottom block 2 and the top block 3; mounting plates 402 are respectively provided at both ends of the C-shaped plate 401, and are respectively connected to the left side of the bottom block 2 and the top block 3 by first bolts 403. The second buffer has the same structure as the first buffer and is symmetrically connected to the right side of the bottom block 2 and the top block 3.

[0025] In this utility model, the fixed support device also has a bottom block 2 and a top block 3. The bottom block 2 has a first arc-shaped groove 201 on its upper part, and the top block 3 has a second arc-shaped groove 301 on its lower part. When the top block 3 is connected to the bottom block 2, the first arc-shaped groove 201 and the second arc-shaped groove 301 are spliced ​​into a complete circular through hole for the PCCP pipe to pass through, and the direction in which the PCCP pipe passes through is defined as the front-back direction. When the PCCP pipe passes through the circular through hole, the first arc-shaped groove 201 uses its upward-facing arc surface to fix and support the lower half of the PCCP pipe, and the second arc-shaped groove 301 uses its downward-facing arc surface to clamp the upper half of the PCCP pipe. Thus, the bottom block 2 and the top block 3 constitute the installation structure of the PCCP pipe, and the PCCP pipe is fixed, supported and clamped through the circular through hole.

[0026] The fixed support device also includes a first buffer and a second buffer. The first buffer is connected to the left side of the bottom block 2 and the top block 3, and the second buffer is connected to the right side of the bottom block 2 and the top block 3. When an external impact such as falling rocks occurs, the impact first hits the first and second buffers, thereby protecting the top and bottom blocks from the direct impact of falling rocks, which could cause deformation of the top and bottom blocks and lead to displacement of the PCCP pipeline and deformation of the PCCP pipeline.

[0027] As the main load-bearing component, the C-shaped plate 401 has its opening facing the bottom block 2 and the top block 3. The upper and lower ends of the C-shaped plate 401 are also provided with mounting plates 402 for mounting the C-shaped plate 401 on the side walls of the top block 3 and the bottom block 2 and connecting the bottom block 2 and the top block 3. The mounting plates 402 are oriented radially toward the inside of the C-shaped plate 401 or radially toward the outside of the C-shaped plate 401, so that the mounting plates 402 fit against the side walls of the top block 3 and the bottom block 2. The installation method involves using the first bolt 403. Specifically, one first bolt 403 passes through a mounting plate 402 and is screwed into the side wall of the top block 3, thereby fixing the upper end of the C-shaped plate 401 to the side wall of the top block 3. Another first bolt 403 passes through another mounting plate 402 and is screwed into the side wall of the bottom block 2, thereby fixing the lower end of the C-shaped plate 401 to the side wall of the bottom block 2. This completes the installation process of the C-shaped plate 401. The C-shaped plate 401 has a certain curvature, which effectively increases its compressive strength. When subjected to external impacts such as falling rocks, it can buffer the impact and maintain its shape without significant changes.

[0028] The second buffer is identical to the first buffer structure, symmetrically positioned on the right side of the bottom block 2 and the top block 3. This arrangement ensures that the arc surfaces of the C-shaped plates 401 of both buffers are opposite to each other, with the openings of the C-shaped plates 401 facing the top block 3 and the bottom block 2. This curvature of the C-shaped plates 401 ensures that when a falling rock impacts the C-shaped plates 401, it is deflected outwards to both sides, preventing the rock from bouncing and falling onto the PCCP pipes near the C-shaped plates 401, thus reducing the likelihood of damage or deformation to these areas. Therefore, it provides protection for PCCP pipes near the fixed support device, within the coverage area of ​​the C-shaped plates 401, and for PCCP pipes located near the C-shaped plates 401.

[0029] As a further embodiment, such as Figure 1 and Figure 2 As shown, the mounting plate 402 is provided with through holes, and the first bolt 403 passes through the through holes to connect the mounting plate 402 to the side walls of the bottom block 2 and the top block 3 respectively; the mounting plate 402 is fitted on the first bolt 403 and can move along the length direction of the first bolt 403; a buffer spring 404 is also fitted on the outside of the screw of the first bolt 403, and the two ends of the buffer spring 404 are respectively connected to the mounting plate 402 and the side wall of the bottom block 2, and the mounting plate 402 and the side wall of the top block 3.

[0030] In this embodiment, the mounting plate 402 has a through hole. The diameter of the through hole is larger than the diameter of the screw of the first bolt 403 but smaller than the diameter of the screw head. The mounting plate 402 is laterally fitted onto the screw of the first bolt 403 through the through hole. Here, "fitting" means that the screw of the first bolt 403 passes through the transverse through hole and screws into the side wall of the top block 3 and the bottom block 2. The mounting plate 402 is limited by the screw head of the first bolt 403, allowing the mounting plate 402 to move along the length of the first bolt 403 on the screw, and preventing the mounting plate 402 from slipping off the first bolt 403. It should be noted that since the screw of the first bolt 403 has threads, grease can be applied to the inner wall of the transverse through hole to reduce the friction between the threads and the transverse through hole.

[0031] A buffer spring 404 is also fitted around the outside of the screw of the first bolt 403 to buffer the movement of the mounting plate 402 toward the bottom block 2 and the top block 3. Specifically, the mounting plate 402 at the upper end of the C-shaped plate 401 is connected to the side wall of the top block 3 through the buffer spring 404, that is, the two ends of the buffer spring 404 are respectively connected to the mounting plate 402 at the upper end of the C-shaped plate 401 and the side wall of the top block 3. The mounting plate 402 at the lower end of the C-shaped plate 401 is connected to the side wall of the bottom block 2 through the buffer spring 404, that is, the two ends of the buffer spring 404 are respectively connected to the mounting plate 402 at the bottom end of the C-shaped plate 401 and the side wall of the top block 3, thereby buffering the movement of the mounting plate 402 toward the bottom block 2 and the top block 3. Mounting plate 402 is connected to top block 3 and bottom block 2 respectively. When an external impact such as falling rock occurs, it first acts on C-shaped plate 401, causing C-shaped plate 401 to slide relative to bottom block 2 and top block 3 through the transverse through hole on mounting plate 402 and the screw of first bolt 403. This causes buffer spring 404 to be compressed and deformed, thereby using the compression deformation of buffer spring 404 to buffer the force of external impact, preventing external impact from directly impacting top block 3 and bottom block 2 through C-shaped plate 401, and further reducing the possibility of damage to top block 3 and bottom block 2 affecting PCCP pipeline.

[0032] As a further embodiment, such as Figure 1 and Figure 2 As shown, each mounting plate 402 is equipped with two first bolts 403 and two buffer springs 404.

[0033] This embodiment provides another installation method for the mounting plate 402. Specifically, each mounting plate 402 is mounted on the side wall of the top block 3 using two first bolts 403. Correspondingly, each mounting plate 402 is also equipped with two buffer springs 404. The two buffer springs 404 work together to buffer the load, reducing the force on a single buffer spring 404 and preventing excessive force on the buffer spring 404, which could cause deformation exceeding its elastic limit. The two buffer springs 404 also reduce the force at the contact points between a single buffer spring 404 and the spring side walls of the top block 3 and bottom block 2, further reducing the possibility of damage to the top block 3 and bottom block 2.

[0034] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, the C-shaped plate 401 is also provided with several weight-reducing grooves 405.

[0035] This embodiment provides an optimized structure for the C-shaped plate 401, specifically a weight-reducing groove 405. The weight-reducing groove 405 is a plurality of strip-shaped grooves disposed on the outer wall of the C-shaped plate 401. On one hand, it reduces the overall weight of the C-shaped plate 401, facilitating transportation and installation. On the other hand, when the C-shaped plate 401 is subjected to external impact, the weight-reducing groove 405 is more likely to deform upon impact, thereby absorbing some energy and reducing the force exerted by the external impact on the buffer spring 404. Because the external impact causes deformation of the weight-reducing groove 405, it also facilitates inspection of the C-shaped plate 401 during routine checks. When staff find deformation in the weight-reducing groove 405 during inspection, it indicates that the C-shaped plate 401 at that location has been subjected to external impact, and the protective capability of the C-shaped plate 401 may be reduced. In this case, the C-shaped plate 401 can be replaced by disassembling and installing the mounting plate 402 and the buffer spring 404 to ensure its protective capability.

[0036] In a preferred embodiment, the width of the C-shaped plate 401 is greater than the width of the top block 3 and the bottom block 2.

[0037] In this embodiment, the width refers to the width along the front-to-back direction. By increasing the width of the C-shaped plate 401 to be greater than the width of the top block 3 and the bottom block 2, the coverage area of ​​the C-shaped plate 401 is increased, so that the C-shaped plate 401 can better protect the PCCP pipe located near the C-shaped plate 401, thereby achieving the purpose of increasing the protection range of the C-shaped plate 401.

[0038] As a preferred embodiment, such as Figure 1 and Figure 2 As shown, it also includes a base 1, which has mounting holes 109, and a bottom block 2 is connected to the upper surface of the base 1.

[0039] In this embodiment, the fixed support device also includes a base 1, which has mounting holes 109. The base 1 is fixed to the ground by bolts or reinforcing bars installed within the mounting holes 109. A base block 2 is connected to the upper surface of the base 1, enabling the base 1 to serve as the mounting foundation for the entire fixed support device, providing support for the entire device and preventing translational movement.

[0040] As a preferred embodiment, such as Figure 2 and Figure 3 As shown, the upper surface of the base 1 is also provided with at least two positioning rods 101, and the lower surface of the top block 3 is provided with positioning holes 304 corresponding to the positioning rods 101. The top end of the positioning rod 101 passes through the bottom block 2 and is inserted into the positioning hole 304, so that both the bottom block 2 and the top block 3 slide with the positioning rod 101. The base 1 has a groove 102 in the middle, and a first crossbar 103 is provided in the groove 102 along the front-to-back direction. A top support block 104 is also provided in the groove 102, and the top support block 104 slides in conjunction with the first crossbar 103; The groove 102 is also provided with a second horizontal bar 105 that runs horizontally through the groove 102 and the top support block 104. The second horizontal bar 105 is parallel to the first horizontal bar 103. The second horizontal bar 105 is provided with external threads and is threadedly engaged with the top support block 104. The top support block 104 is also provided with a first inclined surface 106 at its upper end. The bottom block 2 is provided with a second inclined surface 107 that fits against the first inclined surface 106 at its lower end. The first inclined surface 106 and the second inclined surface 107 slide relative to each other in the front-back direction.

[0041] This embodiment provides a specific connection method between the bottom block 2 and the base 1. Specifically, at least two positioning rods 101 are provided on the upper surface of the base 1. The positioning rods 101 are vertically arranged, with their top ends passing through the bottom block 2 upwards, allowing the bottom block 2 to be fitted onto the positioning rods 101 and slide up and down on them. To ensure sliding, the positioning rods 101 and the bottom block 2 are movably connected, which can be achieved by providing vertical holes on the bottom block 2 that mate with the positioning rods 101. Positioning holes 304, corresponding one-to-one with the positioning rods 101, are also provided on the lower surface of the top block 3. The top ends of the positioning rods 101 pass through the bottom block 2 and are inserted into the corresponding positioning holes 304, allowing the top block 3 to also slide up and down on the positioning rods 101. The positioning holes 304 can be through holes in the vertical direction or blind holes provided on the lower surface of the top block 3, ensuring that the positioning holes 304 do not slip off the positioning rods 101 during the up and down sliding of the top block 3.

[0042] A groove 102 is provided in the middle of the base 1, and a first horizontal bar 103 is provided in the groove 102 along the front-back direction. The top support block 104 is slidably disposed on the first horizontal bar 103. A second horizontal bar 105 is also provided in the groove 102, passing through the groove 102 and the top support block 104. The second horizontal bar 105 is provided with external threads and is threadedly engaged with the top support block 104. Thus, the sliding direction of the top support block 104 is restricted by the first horizontal bar 103 and the positioning horizontal bar 105 along the axis of the first horizontal bar 103. The lower surfaces of the top support block 104 and the bottom block 2 are respectively provided with a first inclined surface 106 and a second inclined surface 107 that cooperate with each other. When the second crossbar 105 is rotated, the top support block 104 can only move along the direction of the first crossbar 103 under the restriction of the first crossbar 103 and the second crossbar 105. Thus, the first inclined surface 106 on the top support block 104 applies a force perpendicular to the inclined surface to the second inclined surface 107 at the bottom of the bottom block 2. Since the bottom block 2 can only slide up and down under the restriction of the positioning rod 101, the height of the bottom block 2 can be adjusted to adjust the overall height of the bottom block 2 and the top block 3. This allows the height of the bottom block 2 and the top block 3 to be adjusted when the ground height at the installation location of the base 1 changes, so that the circular through holes of multiple fixed support devices remain at the same elevation, increasing the applicability of this utility model device and reducing the impact of different ground heights on the PCCP pipeline installation process. To facilitate the rotation of the second crossbar 105, the second crossbar 105 can rotate through the base 1 via a rotating bearing.

[0043] As a further embodiment, such as Figure 4 As shown, the end of the second crossbar 105 is also provided with a force-applying part 108, and the force-applying part 108 is covered with a protective cap.

[0044] This embodiment provides a method for rotating the second crossbar 105. Specifically, by providing a force-applying part 108 at the end of the second crossbar 105, construction personnel can rotate the second crossbar 105 through the force-applying part, facilitating the adjustment of the height of the top block 3 and the bottom block 2. The force-applying part 108 is covered with a protective cap, thereby protecting the force-applying part 108 when the height of the top block 3 and the bottom block 2 does not need to be adjusted. It should be noted that since the top block 3, bottom block 2, and the PCCP pipe themselves have a certain weight, a check valve needs to be installed on the second horizontal bar 105 to prevent it from rotating under the upper gravity load after rotation. This check valve can be an extension rod radially positioned outside the protective cap. After the protective cap is placed over the force-applying part 108, a fixing block is installed on the ground next to the extension rod in the direction of rotation. This fixing block supports the extension rod. Alternatively, a connection point can be installed on the top of the fixing block, and a connecting rope can be used to connect the connection point on the top of the fixing block to the end of the extension rod to prevent the extension rod from rotating. The force-applying part can be the hexagonal head of a hexagonal head bolt, and correspondingly, the protective cap can be a sleeve with an internal hexagonal hole.

[0045] As a preferred embodiment, such as Figure 2 and Figure 3 As shown, the bottom block 2 is provided with limiting grooves 202 on the left and right sides of the upper surface, and the top block 3 is provided with limiting blocks 302 that cooperate with the limiting grooves 202 on the left and right sides of the lower surface. The second bolt 303 passes through the limiting block 302 and is screwed into the side wall of the limiting groove 202 to connect the top block 3 and the bottom block 2.

[0046] This embodiment provides a connection method between the top block 3 and the bottom block 2. Specifically, limiting grooves 202 are provided on the left and right sides of the upper surface of the bottom block 2, and blind holes are provided in the limiting grooves 202. Limiting blocks 302 that cooperate with the limiting grooves 202 are provided on the left and right sides of the lower surface of the top block 3, and through holes are provided on the limiting blocks 302. The cooperation here means that the lower end of the limiting block 302 is inserted into the limiting groove 202. The second bolt 303 is inserted laterally through the through hole of the limiting block 302 and then screwed into the blind hole in the limiting groove 202 to fix the relative position between the limiting block 302 and the limiting groove 202. This further prevents the top block 3 and the bottom block 2 from separating in the vertical direction during use, so that the top block 3 and the bottom block 2 can be firmly connected into a whole. During this process, the limiting groove 202 can be a groove that is closed on the outer side (i.e., the left and right sides) or a groove that is open on the outer side. Setting the limiting groove 202 as a groove with an open outer side can facilitate the construction personnel to promptly confirm the connection status of the top block 3 and the bottom block 2, and further ensure the connection effect of the top block 3 and the bottom block 2.

[0047] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0048] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fixed support device for a PCCP pipe, comprising a bottom block (2) and a top block (3); the bottom block (2) is provided with a first arc-shaped groove (201), and the top block (3) is provided with a second arc-shaped groove (301); after the top block (3) is connected to the bottom block (2), the first arc-shaped groove (201) and the second arc-shaped groove (301) are joined together to form a circular through hole for fixing and supporting the PCCP pipe; characterized in that, It also includes a first buffer and a second buffer; The first buffer includes a C-shaped plate (401), the opening of which faces the bottom block (2) and the top block (3); mounting plates (402) are respectively provided at both ends of the C-shaped plate (401), which are respectively connected to the left side of the bottom block (2) and the top block (3) by the first bolt (403); The second buffer has the same structure as the first buffer and is symmetrically connected to the right side of the bottom block (2) and the top block (3).

2. The fixed support device for a PCCP pipeline as described in claim 1, characterized in that, The mounting plate (402) is provided with through holes, and the first bolt (403) passes through the through holes to connect the mounting plate (402) to the side walls of the bottom block (2) and the top block (3) respectively; the mounting plate (402) is fitted on the first bolt (403) and can move along the length direction of the first bolt (403); a buffer spring (404) is also fitted on the outside of the screw of the first bolt (403) to buffer when the mounting plate (402) moves toward the bottom block (2) and the top block (3).

3. The fixed support device for a PCCP pipeline as described in claim 2, characterized in that, Each mounting plate (402) is equipped with two first bolts (403) and two buffer springs (404).

4. The fixed support device for a PCCP pipeline as described in claim 1, characterized in that, The C-shaped plate (401) is also provided with several weight-reducing grooves (405).

5. A fixed support device for a PCCP pipeline as described in claim 1, characterized in that, The width of the C-shaped plate (401) is greater than the width of the top block (3) and the bottom block (2).

6. A fixed support device for a PCCP pipeline as described in claim 1, characterized in that, It also includes a base (1) having mounting holes (109) and a bottom block (2) connected to the upper surface of the base (1).

7. A fixed support device for a PCCP pipeline as described in claim 6, characterized in that, The upper surface of the base (1) is also provided with at least two positioning rods (101), and the lower surface of the top block (3) is provided with positioning holes (304) corresponding to the positioning rods (101). The top of the positioning rod (101) passes through the bottom block (2) and is inserted into the positioning hole (304), so that the bottom block (2) and the top block (3) are both in sliding fit with the positioning rod (101). The base (1) has a groove (102) in the middle, and a first crossbar (103) is provided in the groove (102) along the front-back direction; a top support block (104) is also provided in the groove (102), and the top support block (104) slides with the first crossbar (103); a second crossbar (105) is also provided in the groove (102) that runs horizontally through the groove (102) and the top support block (104), the second crossbar (105) is parallel to the first crossbar (103), the second crossbar (105) has an external thread and is threaded with the top support block (104); a first inclined surface (106) is provided at the upper end of the top support block (104), and a second inclined surface (107) is provided at the lower end of the bottom block (2) that fits against the first inclined surface (106), and the first inclined surface (106) and the second inclined surface (107) slide against each other in the front-back direction.

8. A fixed support device for a PCCP pipeline as described in claim 7, characterized in that, The end of the second crossbar (105) is also provided with a force-applying part (108), and a protective cap is provided on the outside of the force-applying part (108).

9. A fixed support device for a PCCP pipeline as described in claim 1, characterized in that, The bottom block (2) is provided with limiting grooves (202) on the left and right sides of the upper surface, and the top block (3) is provided with limiting blocks (302) on the left and right sides of the lower surface, which cooperate with the limiting grooves (202). The second bolt (303) passes through the limiting block (302) and is screwed into the side wall of the limiting groove (202) to connect the top block (3) and the bottom block (2).

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