Elevation control device for buried concrete filled steel tube encapsulation

Abstract

The utility model belongs to the field of road pipeline construction, and particularly relates to a buried steel pipe concrete encapsulation elevation control device which comprises a shell, a lifting device is arranged in the shell and comprises a worm and worm wheel structure, a rotating handle is fixed at the front end of a worm, a worm wheel core is welded with a left sleeve, and a driving gear is further welded on the left sleeve. The driving gear is meshed with a transmission gear which is meshed with a driven gear, and a right sleeve is welded to a center hole of the driven gear. A long screw rod is connected in the left sleeve and the right sleeve in a threaded mode, the long screw rod penetrates out of the shell, a longitudinal sliding groove and a positioning block are arranged on the long screw rod, and the positioning block and the inner wall of the shell are fixed together; an arc-shaped supporting plate is inserted into the top surface of the long screw rod. The device can accurately control the thickness of concrete under the buried steel pipe, carrying is convenient, height adjustment is more convenient, and the construction quality is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of road pipeline construction, and in particular relates to a device for controlling the elevation of buried steel pipe concrete enclosure. Background Technology

[0002] In traditional road pipeline construction, buried steel pipes are common underground infrastructure, and their safety is directly related to people's normal lives. When additional loads exceed the allowable load of buried steel pipes, they need to be properly protected, often using rigid full encapsulation. For example, communication pipelines frequently require concrete encapsulation. However, during construction, it is difficult to accurately control the elevation of the lower part of the pipeline, and the concrete thickness cannot be accurately guaranteed. Summary of the Invention

[0003] The problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a device for controlling the elevation of buried steel pipe concrete enclosure.

[0004] This invention is achieved through the following technical solution:

[0005] A buried steel pipe concrete enclosure elevation control device includes a housing with symmetrical handles on both sides. A lifting device is located inside the housing, comprising a worm and a worm wheel. The worm's front and rear ends are mounted inside the housing via bearings, with the front end extending outside the housing and a rotating handle fixed to it. A vertical left sleeve is welded to the worm wheel core and mounted inside the housing via bearings. A driving gear is also welded to the left sleeve, meshing with a transmission gear to the right. The transmission gear is mounted inside the housing via bearings and meshes with a driven gear to the right. A vertical right sleeve is welded to the center hole of the driven gear and mounted inside the housing via bearings. A long screw is symmetrically threaded into the left and right sleeves, extending vertically upwards through the upper surface of the housing. A longitudinal groove is formed in the lower middle part of the long screw, containing a positioning block fixed to the inner wall of the housing. A slot is provided on the top surface of the long screw, into which two ends of an arc-shaped support plate are inserted downwards and fixed to the long screw.

[0006] Preferably, the upper surface of the arc-shaped support plate is provided with a groove, and a small roller is installed in the groove, with the upper surface of the small roller flush with the arc-shaped support plate.

[0007] Preferably, the housing is provided with a scale, which is located next to any of the long screws.

[0008] Preferably, the arc-shaped support plate matches the curvature of the buried steel pipe.

[0009] The device of this invention solves the problem of accurately controlling the elevation of buried steel pipes encased in concrete. Using the device of this invention, the thickness of the concrete under the buried steel pipe can be accurately controlled. The device is easy to transport and use, more convenient than large hoisting machinery, and the height adjustment is more convenient. It can be precisely fine-tuned, ensuring the construction quality. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the internal front view of the housing in this embodiment;

[0011] Figure 2 This is a schematic diagram of the internal structure of the housing in this embodiment, viewed from the left.

[0012] Figure 3 This is a schematic diagram of the overall front structure of this embodiment;

[0013] Figure 4 This is a schematic diagram of the overall left-side structure of this embodiment;

[0014] Figure 5 This is an enlarged structural diagram of the longitudinal groove in this embodiment;

[0015] Figure 6 This is an enlarged structural diagram of the slot in this embodiment;

[0016] Figure 7 This is a top-view enlarged structural diagram of the small roller in this embodiment.

[0017] In the diagram, 1 is the housing, 2 is the handle, 3 is the worm gear, 4 is the worm wheel, 5 is the rotating handle, 6 is the left sleeve, 7 is the driving gear, 8 is the transmission gear, 9 is the driven gear, 10 is the right sleeve, 11 is the long screw, 12 is the longitudinal groove, 13 is the positioning block, 14 is the slot, 15 is the arc-shaped support plate, 16 is the groove, 17 is the small roller, 18 is the scale, 19 is the fixing hole, 20 is the bolt, and 21 is the round hole. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0019] This embodiment includes a housing 1, with handles 2 symmetrically arranged on the left and right sides of the housing 1 for moving the device. A lifting device is installed inside the housing 1, within its cavity, for height adjustment. Specifically, the lifting device includes a worm gear 3 and a worm wheel 4. The worm wheel 4 meshes with the worm gear 3. The front and rear ends of the worm gear 3 are mounted inside the housing 1 via bearings, with the outer rings of the bearings fixed to the inner wall of the housing 1. The worm gear 3 can rotate together with the inner rings of the bearings. The front end of the worm gear 3 extends outside the housing 1, and the housing 1 has a through hole for the worm gear 3 to pass through. A rotating handle 5 is fixed to the front end of the worm gear 3, used to rotate the worm gear 3, thereby rotating the worm wheel 4. A vertical left sleeve 6 is welded to the core of the worm wheel 4. The upper and lower ends of the left sleeve 6 are mounted inside the housing 1 via bearings, with the outer rings of the bearings fixed to the inner wall of the housing 1. The left sleeve 6 can rotate together with the inner rings of the bearings, and the worm wheel 4 can drive the left sleeve 6 to rotate as well.

[0020] A drive gear 7 is welded to the left sleeve 6. The center hole of the drive gear 7 is welded to the left sleeve 6, allowing the drive gear 7 to rotate with the left sleeve 6. The drive gear 7 meshes with the transmission gear 8 to the right. The transmission gear 8 is mounted inside the housing 1 via bearings, and can rotate with the drive gear 7. The transmission gear 8 meshes with the driven gear 9 to the right. A vertical right sleeve 10 is welded to the center hole of the driven gear 9. The upper and lower ends of the right sleeve 10 are mounted inside the housing 1 via bearings. The outer ring of the bearing is fixed to the inner wall of the housing 1, allowing the right sleeve 10 to rotate with the inner ring of the bearing.

[0021] Both the left sleeve 6 and the right sleeve 10 have internal threads on their inner walls. A long screw 11 is symmetrically connected to the left sleeve 6 and the right sleeve 10 via internal threads. The long screw 11 extends vertically upwards through the upper surface of the housing 1. The housing 1 has a circular hole 21 through which the long screw 11 passes. A longitudinal groove 12 is formed in the lower part of the long screw 11. A positioning block 13 is provided in the longitudinal groove 12. One end of the positioning block 13 is inserted into the longitudinal groove 12, and the other end is fixed to the inner wall of the housing 1. The positioning block 13 is used to limit the long screw 11, preventing it from rotating and allowing only up-and-down movement. A slot 14 is provided on the top surface of the long screw 11. Both ends of an arc-shaped support plate 15 are inserted downwards into the slot 14 and fixed to the long screw 11. The arc-shaped support plate 15 is used to support the buried steel pipe, preferably with a curvature matching that of the buried steel pipe. In this embodiment, the slot 14 is circular, so the left and right ends of the arc-shaped support plate 15 are downward-facing circular rods that are inserted into the slot 14. The upper part of the slot 14 and both ends of the arc-shaped support plate 15 are provided with corresponding fixing holes 19. After aligning the fixing holes 19 on the slot 14 and the fixing holes 19 on the arc-shaped support plate 15, the bolts 20 are passed through, and the nuts at both ends of the bolts 20 are tightened. The lower end of the arc-shaped support plate 15 is fixed to the long screw 11 by the bolts 20.

[0022] To facilitate the sliding and adjustment of the buried steel pipe placed on the arc-shaped support plate 15, it is preferable to have several grooves 16 on the upper surface of the arc-shaped support plate 15. In this embodiment, two grooves 16 are symmetrically arranged, and small rollers 17 are installed in the grooves 16. The small rollers 17 can rotate back and forth. In this embodiment, a fixed shaft is provided in the groove 16, and the small rollers 17 are rotatably connected to the fixed shaft, allowing them to rotate around the fixed shaft. The upper surface of the small rollers 17 is flush with the arc-shaped support plate 15, so that the buried steel pipe can slide appropriately on the arc-shaped support plate 15 for alignment and docking.

[0023] To avoid the hassle of using a separate measuring ruler, it is preferable to have a scale 18 on the housing 1, located next to any of the long screws 11. The height of the buried steel pipe being supported can be determined by the scale 18, thereby accurately controlling the elevation.

[0024] During concrete encapsulation, the device of this invention is placed at the movable end of the buried steel pipe. The hand crank 5 drives the worm gear 3 to rotate, the worm gear 3 drives the worm wheel 4 to rotate, the worm wheel 4 drives the left sleeve 6 and the driving gear 7 to rotate together, the driving gear 7 drives the transmission gear 8 to rotate, the transmission gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the right sleeve 10 to rotate. This achieves the simultaneous rotation of the left sleeve 6 and the right sleeve 10, and the simultaneous rise or fall of the two long screws 11. When the buried steel pipe is raised to the required elevation, concrete is poured to encapsulate it. After the concrete has solidified, the device of this invention can be removed.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; those skilled in the art should understand that modifications can still be made to the technical solutions described in the above embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A device for controlling the elevation of buried steel pipe encased in concrete, comprising a housing (1), characterized in that: The housing (1) is symmetrically provided with handles (2) on the left and right sides. The housing (1) is provided with a lifting device, which includes a worm (3) and a worm wheel (4). The front and rear ends of the worm (3) are installed in the housing (1) through bearings. The front end of the worm (3) extends out of the housing (1). The front end of the worm (3) is fixed with a rotating handle (5). A vertical left sleeve (6) is welded to the core of the worm wheel (4). The left sleeve (6) is installed in the housing (1) through bearings. A drive gear (7) is also welded to the left sleeve (6). The drive gear (7) meshes with the transmission gear (8) to the right. The transmission gear (8) is installed in the housing (1) through bearings. The transmission gear (8) meshes with the right. Driven gear (9), a vertical right sleeve (10) is welded to the center hole of driven gear (9), and the right sleeve (10) is installed in the housing (1) through a bearing; the left sleeve (6) and the right sleeve (10) are symmetrically connected by threads to a long screw (11), the long screw (11) extends vertically upward through the upper surface of the housing (1), a longitudinal groove (12) is opened in the lower part of the long screw (11), a positioning block (13) is provided in the longitudinal groove (12), and the positioning block (13) is fixed together with the inner wall of the housing (1); the top surface of the long screw (11) is provided with a slot (14), and the two ends of an arc-shaped support plate (15) are inserted downward into the slot (14) and fixed together with the long screw (11).

2. The elevation control device for concrete encapsulation of buried steel pipes according to claim 1, characterized in that: The upper surface of the arc-shaped support plate (15) is provided with a groove (16), and a small roller (17) is installed in the groove (16). The upper surface of the small roller (17) is flush with the arc-shaped support plate (15).

3. The elevation control device for concrete encapsulation of buried steel pipes according to claim 1, characterized in that: The housing (1) is provided with a scale (18), which is located next to any long screw (11).

4. The elevation control device for concrete encapsulation of buried steel pipes according to claim 1, characterized in that: The arc-shaped support plate (15) matches the curvature of the buried steel pipe.

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