Modular prefabricated jacking pipe support

Abstract

This utility model discloses a modular prefabricated pipe jacking support, including a core tube, a sleeve fitted over the core tube, and a pipe jacking support between the core tube and the sleeve. The pipe jacking support includes a ring hoop surrounding the core tube, which is formed by several hoop plates connected circumferentially by connectors. Several supporting ribs are circumferentially distributed on the outer wall of the ring hoop, with the bottom end of the supporting ribs connected to the hoop plates and the top end of the supporting ribs abutting against the inner wall of the sleeve. The hoop plates are provided with slots, and the bottom end of the supporting ribs is provided with seats that can be engaged into the slots. Individual hoop plates can be bent and deformed to expand the slots, allowing the slot opening to allow the seats to pass through. When several hoop plates are connected to form a ring hoop, the shape of the slots remains unchanged. This utility model divides the pipe jacking support into modular prefabricated structural components, which can be assembled on-site to form a pipe jacking support, thereby improving on-site installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of internal and external pipe support technology, and in particular to a modular prefabricated jacking pipe support. Background Technology

[0002] In thermal pipelines, there is an insulation layer between the core pipe and the sleeve. To maintain the coaxiality of the core pipe and the sleeve, a jacking support is installed between them to restrict the position of the core pipe. The jacking support generally consists of two parts: a ring-shaped structure surrounding the core pipe and a supporting structure located between the core pipe and the sleeve. During on-site installation, the supporting structure is typically welded to the ring-shaped structure; however, the welding process is complex, resulting in low on-site installation efficiency. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a modular prefabricated pipe jacking support, which divides the pipe jacking support into modular prefabricated structural components. The prefabricated structural components can be spliced ​​and assembled on site to form a pipe jacking support, thereby improving on-site installation efficiency.

[0004] Technical Solution: To achieve the above objectives, this utility model provides a modular precast pipe jacking support, comprising a core pipe, a sleeve fitted over the core pipe, and a pipe jacking support between the core pipe and the sleeve. The pipe jacking support includes a ring hoop surrounding the core pipe, which is formed by several hoop plates connected circumferentially by connectors. Several supporting ribs are circumferentially distributed on the outer wall of the ring hoop, with the bottom end of the supporting ribs connected to the hoop plates and the top end of the supporting ribs abutting against the inner wall of the sleeve. The hoop plates are provided with slots, and the bottom ends of the supporting ribs are provided with seats that can be engaged in the slots. Individual hoop plates can be bent and deformed to expand the slots, allowing the slot opening to allow the seat to pass through. When several hoop plates are connected to form a ring hoop, the shape of the slots remains unchanged.

[0005] Furthermore, the slot extends axially along the ring.

[0006] Furthermore, both ends of the card slot extend to the edge of the hoop plate; each end of the card seat is provided with a limiting block. When the card seat is inserted into the card slot, the limiting blocks at both ends of the card seat are clamped on the two sides of the hoop plate to restrict the card seat from sliding along the card slot.

[0007] Furthermore, the card holder and the card slot have the same cross-sectional shape, and the width of the card slot gradually narrows from the bottom to the opening.

[0008] Furthermore, a round tube is provided at the top of the supporting rib, and the supporting rib presses against the inner wall of the sleeve through the round tube.

[0009] Furthermore, each end of the hoop plate is provided with a connecting lug, and the connecting lug is provided with a connecting hole; when several hoop plates are connected circumferentially to form a hoop, the connecting lugs on two adjacent hoop plates are in contact; the connecting element is a bolt, and the bolt passes through the connecting hole on the two connecting lugs to connect two adjacent hoop plates together.

[0010] Furthermore, there is an elastic structural layer between the ring and the core tube.

[0011] Beneficial effects: This utility model provides a modular prefabricated pipe jacking support, which consists of several prefabricated hoop plates and several supporting rib plates. The supporting rib plates are provided with a locking seat, and the hoop plates are provided with a locking groove. The supporting rib plates can be locked into the hoop plates by the cooperation of the locking seat and the locking groove, so that the supporting rib plates are spliced ​​on the hoop plates. Compared with welding the supporting rib plates to the hoop plates, the splicing operation is simpler and can improve the on-site installation efficiency of the pipe jacking support. Attached Figure Description

[0012] Appendix Figure 1 This is a schematic diagram of the pipe jacking support between the core tube and the sleeve.

[0013] Appendix Figure 2 A schematic diagram showing the support ribs mounted on the hoop.

[0014] Appendix Figure 3 This is a schematic diagram of the structure supporting the ribs. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] As attached Figures 1 to 3 The modular prefabricated pipe jacking support includes a core tube 1, a sleeve 2 fitted over the core tube 1, and a pipe jacking support between the core tube 1 and the sleeve 2. The pipe jacking support includes a ring 3 surrounding the core tube 1, which is formed by several hoop plates 4 connected circumferentially by connectors. Each hoop plate 4 is an arc-shaped plate. Several supporting ribs 5 are circumferentially distributed on the outer wall of the ring 3. The bottom end of the supporting ribs 5 is connected to the hoop plate 4, and the top end of the supporting ribs 5 abuts against the inner wall of the sleeve 2, thereby restricting the position of the core tube 1 and ensuring that the core tube 1 and the sleeve 2 are coaxial.

[0017] A groove 6 is provided on the outer surface of the hoop plate 4, and a seat 7 is provided at the bottom end of the supporting rib plate 5. The seat 7 can be inserted into the groove 6 to achieve splicing between the seat 7 and the groove 6. Since the hoop plate 4 is arc-shaped, it has a certain deformation capacity. When the hoop plates 4 are not spliced ​​into a ring hoop 3, a single hoop plate 4 can bend and deform to expand the groove 6, allowing the groove 6 to be widened to allow the seat 7 to pass through. That is, the width of the groove 6 is expanded from less than the maximum width of the seat 7 to greater than the maximum width of the seat 7, thereby allowing the seat 7 at the bottom end of the supporting rib plate 5 to be inserted into the groove 6. When several hoop plates 4 are connected to form a ring hoop 3, the shape of the hoop plate 4 is fixed. At this time, the shape of the groove 6 will remain unchanged, thus preventing the seat 7 from detaching from the groove 6.

[0018] In existing technologies, the supporting ribs 5 and the hoop plates 4 are usually welded together, which involves complex welding operations, resulting in low on-site installation efficiency for pipe jacking supports. In this invention, the pipe jacking support is composed of prefabricated hoop plates 4 and supporting ribs 5 assembled together, simplifying the assembly process. Typically, the hoop plates 4 and supporting ribs 5 require bolts 12 for fixing during assembly, which necessitates additional parts and is cumbersome. Therefore, in this invention, the hoop plates 4 and supporting ribs 5 are assembled using slots 6 and seats 7. Leveraging the deformation capability of the hoop plates 4, when not assembled into a ring 3, the slots 6 can be easily opened, allowing the seats 7 to be inserted. When several hoop plates 4 are connected to form a ring 3, the deformation of the slots 6 remains constant, allowing the slots 6 to clamp the seats 7, achieving a stable connection between the supporting ribs 5 and the hoop plates 4. Compared to connecting with bolts 12, using slots 6 and brackets 7 for splicing requires less work, is simpler to operate, and helps improve the efficiency of on-site construction.

[0019] The slot 6 extends axially along the ring 3, and the slot 6 is more easily expanded when the hoop 4 bends and deforms. When the support rib 5 is installed on the hoop 4, the height direction of the support rib 5 is consistent with the radial direction of the ring 3.

[0020] In addition, as attached Figure 3 As shown, both ends of the slot 6 extend to the edge of the hoop 4, and limit blocks 8 are respectively provided at both ends of the card seat 7. When the card seat 7 is inserted into the slot 6, the limit blocks 8 at both ends of the card seat 7 are clamped on the two side edges of the hoop 4. Thus, the limit blocks 8 can restrict the card seat 7 from sliding along the slot 6, thereby preventing relative displacement between the support rib 5 and the hoop 4.

[0021] The card holder 7 has the same cross-sectional shape as the card slot 6, so the card holder 7 can fit perfectly into the card slot 6. The width of the card slot 6 gradually narrows from the bottom to the opening, making it difficult for the card holder 7 to detach after entering the card slot 6. In one embodiment, the shape of the card slot 6 is a trapezoid that is narrower at the top and wider at the bottom.

[0022] A circular tube 9 is provided at the top of the supporting rib 5, and the circular tube 9 is fixed to the top of the supporting rib 5 by welding. The supporting rib 5 abuts against the inner wall of the sleeve 2 through the circular tube 9, and the outer contour surface of the circular tube 9 can fit more closely to the inner wall of the sleeve 2. The length of the circular tube 9 is greater than the length of the supporting rib 5 to increase the contact area between the circular tube 9 and the inner wall of the sleeve 2.

[0023] Connecting lugs 10 are provided at both ends of the hoop plate 4, and connecting lugs 10 have connecting holes 11. When several hoop plates 4 are connected circumferentially to form a hoop 3, the connecting lugs 10 on two adjacent hoop plates 4 are in contact. The connecting component is a bolt 12, which passes through the connecting holes 11 on the two connecting lugs 10 and connects two adjacent hoop plates 4 together. See attached... Figure 1 In one embodiment shown, the ring 3 is formed by connecting two semi-circular hoop plates 4, and three supporting ribs 5 are connected to each hoop plate 4.

[0024] An elastic structural layer 13 is provided between the ring clamp 3 and the core tube 1. The ring clamp 3 adheres tightly to the outer surface of the core tube 1 through the elastic structural layer 13, so that the outer surface of the core tube 1 is subjected to uniform force. The elastic structural layer 13 can be an elastic ring disposed between the ring clamp 3 and the core tube 1, or it can be an elastic pad connected to the inner side of the clamp plate 4.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A modular precast jacking pipe support, characterized by: The system includes a core tube (1), a sleeve (2) fitted over the core tube (1), and a jacking support between the core tube (1) and the sleeve (2). The jacking support includes a ring (3) surrounding the core tube (1), which is formed by connecting several ring plates (4) circumferentially through connectors. Several supporting ribs (5) are circumferentially distributed on the outer wall of the ring (3). The bottom end of the supporting rib (5) is connected to the ring plate (4), and the top end of the supporting rib (5) abuts against the inner wall of the sleeve (2). The ring plate (4) is provided with a slot (6), and the bottom end of the supporting rib (5) is provided with a seat (7). The seat (7) can be inserted into the slot (6). A single ring plate (4) can be bent and deformed to expand the slot (6), so that the opening of the slot (6) is expanded to allow the seat (7) to pass through. When several ring plates (4) are connected to form a ring (3), the shape of the slot (6) can be maintained unchanged.

2. A modular precast pipe jacking support according to claim 1, wherein: The slot (6) extends along the axial direction of the ring (3).

3. A modular prefabricated pipe jacking support according to claim 2, characterized in that: Both ends of the slot (6) extend to the edge of the hoop plate (4); the two ends of the card seat (7) are respectively provided with limit blocks (8). When the card seat (7) is inserted into the slot (6), the limit blocks (8) at both ends of the card seat (7) are respectively clamped on the two sides of the hoop plate (4) to restrict the card seat (7) from sliding along the slot (6).

4. The modular precast pipe jacking casing of claim 1, wherein: The card holder (7) has the same cross-sectional shape as the card slot (6), and the width of the card slot (6) gradually narrows from the bottom to the opening.

5. The modular precast pipe jacking casing of claim 1, wherein: The top of the support rib (5) is provided with a round tube (9), and the support rib (5) presses against the inner wall of the sleeve (2) through the round tube (9).

6. The modular precast pipe jacking support of claim 1, wherein: The two ends of the hoop (4) are respectively provided with connecting ears (10), and the connecting ears (10) are provided with connecting holes (11); when several hoops (4) are connected in a ring (3) in a ring direction, the connecting ears (10) on two adjacent hoops (4) are in contact; the connecting component is a bolt (12), and the bolt (12) passes through the connecting holes (11) on the two connecting ears (10) to connect the two adjacent hoops (4) together.

7. A modular prefabricated pipe jacking support according to claim 1, characterized in that: There is an elastic structural layer (13) between the ring (3) and the core tube (1).

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