Adjustable pipe jacking frame

Abstract

The utility model discloses an adjustable pipe jacking frame which comprises a base, a vertical plate, two guide rails, a shield and supporting frames, and the supporting frames are connected with idler wheels matched with the guide rails respectively. The two displacement supporting blocks are fixedly connected to the rear side of the shield through a plurality of bolts penetrating through the same group of mounting screw holes; the two displacement supporting blocks are fixedly connected with a V-shaped supporting plate; the two supporting frames are fixedly connected with middle supporting blocks, the two middle supporting blocks are fixedly connected with middle supporting plates arranged in a V shape, middle cushion blocks are arranged on the middle supporting plates, the middle supporting plates are connected with the middle cushion blocks, and supporting plates are fixedly connected to the tops of the middle cushion blocks; the rear portion of the base is fixedly connected with two rear supporting blocks, the two rear supporting blocks are both connected with rear cushion blocks and rear supporting plates, the rear supporting plates are both provided with supporting rollers, and the two supporting plates and the two supporting rollers are all arranged in a V shape. The longitudinal operation position of the pipe fitting can be adjusted, it is guaranteed that the pipe fitting bears the maximum thrust during pipe jacking, the operation effect can be improved, and the application range can be widened.

Description

Technical Field

[0001] This utility model relates to a pipe jacking frame, and more particularly to an adjustable pipe jacking frame. Background Technology

[0002] The existing pipe jacking frame includes a base, a vertical plate fixed to the front of the base, and two guide rails fixed to both sides of the base. A shield is placed on the guide rails via rollers on both sides. The shield has a central hole. The cylinders of two hydraulic cylinders pass through the shield and are connected to it. The two hydraulic cylinders are located on both sides of the central hole. The piston rods of the two hydraulic cylinders are fixed to the vertical plate. The rear ends of the cylinders of the two hydraulic cylinders are fixed to their respective support frames. The support frames are connected to rollers that cooperate with their respective guide rails. A slide rail is provided on the base between the two guide rails. During operation, the pipe is placed on the slide rail, and the shield pushes the pipe to the rear through the two hydraulic cylinders to achieve pipe jacking. However, the longitudinal position of the pipe cannot be adjusted. For pipes of different diameters, it is difficult to ensure that their center is coaxial with the central hole of the shield. The pipe is subjected to uneven force during pipe jacking, which affects the operation effect and has a limited scope of application. Summary of the Invention

[0003] The purpose of this utility model is to address the aforementioned shortcomings of the existing technology by providing an adjustable pipe jacking frame. This frame can adjust the longitudinal working position of the pipe fittings, ensuring that the pipe fittings can withstand the maximum thrust during pipe jacking, thereby improving the working effect and the scope of application.

[0004] To achieve the above objectives, this utility model provides an adjustable pipe jacking frame, comprising a base, a vertical plate fixed to the front of the base, two guide rails fixed to both sides of the base, a shield placed on the guide rails via rollers on both sides, the shield having a central hole, two hydraulic cylinders having their cylinder barrels passing through and connected to the shield, the two hydraulic cylinders located on both sides of the central hole, the piston rods of the two hydraulic cylinders being fixed to the vertical plate, and the rear ends of the cylinder barrels of the two hydraulic cylinders being fixed to their respective support frames, each support frame being connected to rollers that cooperate with their respective guide rails; the feature is that the shield on both sides of the central hole axis has two or more sets of mounting screw holes located radially upwards from the central hole, each set of mounting screw holes having several screw holes, and two displacement support blocks... The shield is fixed to the rear side by several bolts passing through the same set of mounting screw holes; two displacement support blocks are fixed to V-shaped support plates; both support frames are fixed to a central support block, and the two central support blocks are fixed to a V-shaped central support plate. Each central support plate has several through holes and a central pad. The central support plate is connected to the central pad by several bolts passing through its through holes. A support plate is fixed to the top of the central pad, and the two support plates are arranged in a V-shape; two rear support blocks are fixed to the rear of the base. Each rear support block is connected to a rear pad and a rear support plate in sequence by two bolts. Each rear support plate is equipped with a support roller, and the two support rollers are arranged in a V-shape.

[0005] In use, the pipe fitting is placed on two support plates, two bracing plates, and two support rollers simultaneously. The shield pushes the pipe fitting to achieve pipe jacking. When the pipe diameter changes, the height of the two support plates can be adjusted by using the bolts of the two displacement support blocks to correspond to different sets of mounting screw holes. By removing or replacing the middle and rear pads of different heights, the height of the two bracing plates and two support rollers can be adjusted, thereby adjusting the longitudinal working position of the pipe fitting so that its center is coaxial with the center hole of the shield. This ensures that the pipe fitting can withstand the maximum thrust during pipe jacking, which can improve the working effect and the scope of application.

[0006] As a further improvement of this utility model, each of the middle pads includes a connecting plate and a support plate fixedly connected to the connecting plate via two vertical plates. The connecting plate has several screw holes, and the middle support plate is connected to the middle pad by several bolts passing through its through holes and the screw holes of the connecting plate. Each of the rear pads includes a rear connecting plate and a rear support plate fixedly connected to the rear connecting plate via two rear vertical plates. Both the rear connecting plate and the rear support plate have two through holes, and both rear support blocks are connected to the rear support plate by two bolts passing through the through holes of the rear connecting plate and the rear support plate. The middle and rear pads of this structure are easy to assemble and disassemble, and have high load-bearing strength.

[0007] As a further improvement of this utility model, the two central support blocks are connected by a base plate below the central support plate; the two central support blocks are connected as one unit by the base plate, which can improve the strength of the two central support blocks.

[0008] In summary, this utility model allows for adjustment of the longitudinal working position of the pipe fitting, ensuring that the pipe fitting can withstand maximum thrust during pipe jacking, thereby improving operational efficiency and expanding its applicability. Attached Figure Description

[0009] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0010] Figure 2 This is a front view of an embodiment of the present utility model.

[0011] Figure 3 for Figure 2 Attached view.

[0012] Figure 4 for Figure 2 The left view.

[0013] Figure 5 for Figure 1 Front view of the rear side of the central shield.

[0014] Figure 6 for Figure 1 Enlarged 3D view of the central pad block.

[0015] Figure 7 for Figure 1 Enlarged 3D view of the middle and rear pad blocks. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] like Figures 1 to 7 As shown, an adjustable pipe jacking frame of this embodiment includes a base 1, a vertical plate 2 fixed to the front of the base, and two guide rails 3 fixed to both sides of the base. A shield 4 is placed on the guide rails 3 via rollers 5 on both sides. The shield 4 has a central hole. The cylinders of two hydraulic cylinders 6 pass through the shield and are connected to the shield 4. The two hydraulic cylinders 6 are located on both sides of the central hole. The piston rods of the two hydraulic cylinders 6 are fixed to the vertical plate 2. The rear ends of the cylinders of the two hydraulic cylinders 6 are fixed to their respective support frames 7. Each support frame 7 is connected to rollers 8 that cooperate with their respective guide rails 3. Three sets of mounting screw holes 9 are provided on both sides of the shield 4 on the radial direction of the central hole. Each set of mounting screw holes 9 has several screw holes. The two displacement support blocks 10 are fixed to the rear side of the shield 4 by several bolts passing through the same set of mounting screw holes. The two displacement support blocks 10 are fixed to the V-shaped support plates 11. The two support frames 7 are fixed to the middle support blocks 12. The two middle support blocks 12 are fixed to the V-shaped middle support plates 13. The middle support plates 13 are provided with several through holes. A central support block 14 is provided, each central support block 14 including a connecting plate 15 and a support plate 17 located at the top, which is welded and fixed to the connecting plate 15 through two upright plates 16. The connecting plate 15 has several screw holes. The central support plate 13 is connected to the central support block 14 by several bolts passing through its through holes and the screw holes of the connecting plate. The two support plates 17 are arranged in a V-shape. The two central support blocks 12 are welded and connected to each other through a base plate 18 below the central support plate 13. Two rear support blocks 19 are fixed to the rear of the base 1 by bolts. Each of the two rear support blocks 19 is connected to the rear support plate 26 in sequence by two bolts. The rear support block 21 includes a rear connecting plate 22 and a rear support plate 24 which is welded and fixed to the rear connecting plate 22 by two rear upright plates 23. The rear connecting plate 22 and the rear support plate 24 are provided with two through holes. The two rear support blocks 19 are connected to the rear support plate 26 by two bolts passing through the through holes of the rear connecting plate 22 and the rear support plate 24. The rear support plate 26 is provided with a support roller 27, and the two support rollers 27 are arranged in a V shape.

[0018] In use, the pipe fittings are simultaneously hoisted onto two support plates 11, two support plates 17 and two support rollers 27. The pipe fittings are pushed by the shield 4 through two hydraulic cylinders 6 to achieve pipe jacking. The two support rollers 27 can reduce the resistance of the pipe fittings during pipe jacking. The two support plates 11 and two support plates 17 can maintain the stability of the pipe fittings during hoisting.

[0019] When different workpieces or pipe diameters are pushed, the two support plates 11 can be adjusted by using bolts on the two displacement support blocks 10 to correspond to different sets of mounting screw holes 9 (e.g., Figure 5The height of the pipe fitting (as shown by the dotted line) can be adjusted by removing or replacing the middle pad 14 and the rear pad 21 of different heights. This allows for adjustment of the height of the two support plates 17 (or the pipe fitting can be directly supported by the middle support plate 13) and the two support rollers 27, thereby adjusting the longitudinal working position of the pipe fitting so that its center is coaxial with the center hole of the shield. This ensures that the pipe fitting can withstand the maximum thrust when jacking the pipe, which can improve the working effect and the scope of application.

[0020] The welded middle pad 14 and rear pad 21 are easy to assemble and disassemble, and both of their upright plates can improve the load-bearing strength.

[0021] The two central support blocks 12 are connected as one unit by the base plate 18, which can improve the strength of the two central support blocks 12.

Claims

1. An adjustable pipe rack, comprising a base, a vertical plate fixed to the front of the base, two guide rails fixed to the two sides of the base, a shield placed on the guide rails through the two side rollers, the shield being provided with a central hole, the middle part of the cylinder of the two oil cylinders penetrating through the shield and being connected with the shield, the two oil cylinders being located on the two sides of the central hole, the piston rod of the two oil cylinders being fixed with the vertical plate, the rear end of the cylinder of the two oil cylinders being fixed with the respective support frame, and the support frame being connected with the roller matched with the respective guide rail; characterized in that The shield is provided with two groups of mounting screw holes on both sides of the central hole in the radial direction of the central hole, each group of mounting screw holes is provided with a plurality of screw holes, and the two variable-position supporting blocks are fixed to the rear side of the shield through a plurality of bolts penetrating the same group of mounting screw holes; the two variable-position supporting blocks are fixed with V-shaped supporting plates; the two supporting frames are fixed with middle supporting blocks, the two middle supporting blocks are fixed with V-shaped middle supporting plates, the middle supporting plates are provided with a plurality of through holes, the middle supporting plates are provided with middle pads, the middle supporting plates are connected with the middle pads through a plurality of bolts penetrating the through holes, the middle pads are fixed with supporting plates at the top, and the two supporting plates are V-shaped.

2. An adjustable pipe rack as claimed in claim 1, characterised in that The middle pads each include a connecting plate and a supporting plate fixed with the connecting plate through two vertical plates, the connecting plate is provided with a plurality of screw holes, and the middle supporting plate is connected with the middle pad through a plurality of bolts penetrating the through holes and the screw holes of the connecting plate; the rear pads each include a rear connecting plate and a rear supporting plate fixed with the rear connecting plate through two rear vertical plates, the rear connecting plate and the rear supporting plate are each provided with two through holes, and the two rear supporting blocks are connected with the rear supporting plate through two bolts penetrating the through holes of the rear connecting plate and the rear supporting plate.

3. An adjustable overhead pipe rack as claimed in claim 1 or 2, characterised in that The two middle supporting blocks are connected through a bottom plate below the middle supporting plates.

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