Device for controlling distance between pipeline and sleeve

Abstract

A device for controlling the distance between a pipeline and a sleeve relates to the technical field of building machinery and comprises a pipe body, the inner surface of the pipe body is in clearance fit with the outer surface of a through-wall pipeline, and a plurality of telescopic supporting devices are evenly distributed at the two ends of the outer surface of the pipe body around the axis. The multiple telescopic supporting devices are arranged in the radial direction of the pipe body, and when the telescopic supporting devices extend to a certain degree, the embedded sleeve in the wall and the through-wall pipeline penetrating through the sleeve are relatively fixed. The distance between the through-wall pipeline and the sleeve can be effectively adjusted, so that the distance between the outer surface of the through-wall pipeline and the inner surface of the sleeve is kept consistent, and the plugging efficiency and the plugging effect are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction machinery, in particular to a device for controlling the distance between a pipeline and a casing. Background Art

[0002] During the reserved and embedded construction stage, waterproof casings need to be reserved in advance at the locations where the pipes pass through the walls. When the pipes are installed, there will be a gap between the pipes and the waterproof casings, and this gap needs to be sealed with fireproof materials. The existing practice is to first use hemp to fill the gap between the pipe and the casing after the pipe is installed, and then use fireproof mud to fill the gap between the hemp to achieve the purpose of sealing the gap between the pipe and the casing. However, if the distance between the inner surface of the casing and the outer surface of the pipe passing through the wall cannot be kept consistent, it is easy to cause the casing to be not tightly sealed, resulting in leakage and quality risks of inadequate fireproof sealing. In order to ensure that the distance between the casing and the pipe passing through the wall is consistent, it is necessary to develop a device to control the distance between the pipe and the casing. Utility Model Content

[0003] The invention discloses a device for controlling the distance between a pipeline and a casing, through which the distance between the outer surface of the wall-penetrating pipeline and the inner surface of the casing can be kept consistent, thereby effectively improving the plugging quality.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A device for controlling the distance between a pipe and a sleeve comprises a pipe body, wherein the inner surface of the pipe body is in clearance with the outer surface of the wall-penetrating pipe, and a plurality of telescopic support devices are evenly distributed around an axis at both ends of the outer surface of the pipe body. The plurality of telescopic support devices are arranged radially along the pipe body and relatively fix the embedded sleeve in the wall and the wall-penetrating pipe passing through the sleeve when extended to a certain extent.

[0006] Preferably, the telescopic support devices at both ends of the tube body are opposite to each other front and back, and there are four telescopic support devices at the front and rear ends respectively.

[0007] Preferably, the tube body is formed by connecting a first semicircular arc plate and a second semicircular arc plate.

[0008] Preferably, one end of the first semicircular arc plate and the second semicircular arc plate on the same side are hinged by a hinge shaft, and the other ends of the first semicircular arc plate and the second semicircular arc plate are respectively folded outward to form connecting plates, and the two connecting plates are fixedly connected by locking bolts.

[0009] Preferably, two telescopic support devices are respectively provided at both ends of the first semicircular arc plate and the second semicircular arc plate.

[0010] Preferably, the telescopic support device comprises a nut, a screw rod and a support block, the bottom end of the nut is rotatably connected to the outer surface of the tube body, the screw rod is threaded into the nut, and the top end of the screw rod is provided with a support block.

[0011] Preferably, the lower end of the nut is rotatably connected to the outer surface of the tube body through a thrust bearing, and the same side ends of the first semicircular arc plate and the second semicircular arc plate are respectively provided with pull rods in directions parallel to the axial direction, and the outer ends of the two pull rods are commonly connected to a fixing ring, which is used to be sleeved on the outside of the wall-penetrating pipe and detached from the outer surface of the wall-penetrating pipe.

[0012] The beneficial effects of the device for controlling the distance between the pipeline and the casing are as follows:

[0013] The novel method can effectively adjust the distance between the wall-penetrating pipe and the casing, so that the distance between the outer surface of the wall-penetrating pipe and the inner surface of the casing is kept consistent, thereby effectively improving the plugging efficiency and the plugging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for use in the embodiments, which constitute a part of the specification and are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation to the present invention.

[0015] Figure 1 , a schematic diagram of the structure of the novel device;

[0016] Figure 2 , a front cross-sectional view of the present invention when in use;

[0017] Figure 3 , a side sectional view of the present invention when in use;

[0018] 1—first semicircular arc plate, 2—second semicircular arc plate, 3—thrust bearing, 4—nut, 5—screw, 6—support block, 7—pull rod, 8—fixing ring, 9—connecting plate, 10—locking bolt, 11—sleeve, 12—wall pipe, 13—wall. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] A device for controlling the spacing between the pipe and the casing, such as Figure 1 , 23, comprising a tube body, the inner surface of the tube body and the outer surface of the through-wall pipe 12 are gap-matched, the gap is 0.5mm, which is convenient for the tube body to slide on the pipe, and multiple telescopic support devices are evenly distributed around the axis at both ends of the outer surface of the tube body, and multiple telescopic support devices are arranged along the radial direction of the tube body and relatively fix the embedded sleeve 11 in the wall 13 and the through-wall pipe 12 passing through the sleeve 11 when extended to a certain extent. That is, after multiple telescopic support devices are extended to the same length, the through-wall pipe and the sleeve are nearly coaxially arranged, that is, the spacing between the through-wall pipe and the sleeve is effectively controlled.

[0021] like Figure 2 As shown, the telescopic support devices at both ends of the tube body are opposite to each other, and there are four telescopic support devices at the front and rear ends respectively. Figure 3 As shown, after the spacing between the wall-penetrating pipe and the casing is effectively controlled by the present invention, the present invention can be pulled outward along the wall-penetrating pipe while the gap between the wall-penetrating pipe and the casing is blocked. After the present invention is completely pulled out of the casing, the gap is completely blocked.

[0022] like Figure 2 , 3 As shown, the tube body is formed by connecting a first semicircular arc plate 1 and a second semicircular arc plate 2.

[0023] like Figure 2 , 3 As shown, one end of the first semicircular arc plate 1 and the second semicircular arc plate 2 on the same side is hinged by a hinge shaft, and the other ends of the first semicircular arc plate and the second semicircular arc plate are respectively folded outward to form a connecting plate 9, and the two connecting plates 9 are fixedly connected by locking bolts 10. That is, the new type constitutes a hoop structure, which is more convenient to remove from the wall-penetrating pipe after pulling out the sleeve.

[0024] like Figure 1-3 As shown, two telescopic support devices are respectively provided at both ends of the first semicircular arc plate 1 and the second semicircular arc plate 2.

[0025] like Figure 1-3 As shown, the telescopic support device comprises a nut 4, a screw rod 5 and a support block 6. The bottom end of the nut 4 is rotatably connected to the outer surface of the tube body, the screw rod 5 is screwed into the nut, and the top end of the screw rod 5 is provided with a support block 6. The screw rod is moved upward by rotating the nut until the support block is pressed against the inner surface of the sleeve.

[0026] like Figure 1-3As shown, the lower end of the nut 4 is rotatably connected to the outer surface of the tube body through a thrust bearing 3, and the same side ends of the first semicircular arc plate 1 and the second semicircular arc plate 2 are respectively provided with a pull rod 7 in a direction parallel to the axial direction, and the outer ends of the two pull rods 7 are commonly connected with a fixing ring 8, which is used to be sleeved outside the wall-penetrating pipe 12 and separated from the outer surface of the wall-penetrating pipe 12. The present invention is pulled out of the casing by holding the pull rod or the fixing ring.

[0027] When the present invention is used, the pipe body is first sleeved outside the wall-penetrating pipe, and then the present invention is pushed into the gap between the wall-penetrating pipe and the sleeve, and the nuts on both sides are screwed by a tool to extend each screw rod to the same length, thereby pressing the support block 6 against the inner surface of the sleeve. However, two forms can be adopted for subsequent work. One is to fix the two ends of the wall-penetrating pipe with a bracket, and then pull out the present invention and remove it from the wall-penetrating pipe. The other is to gradually pull out the present invention while blocking the gap between the wall-penetrating pipe and the sleeve. When the blocking is completed, the present invention is also completely removed from the sleeve.

Claims

1. A device for controlling the distance between a pipeline and a casing, characterized by: It includes a pipe body, the inner surface of the pipe body is gap-matched with the outer surface of the wall-penetrating pipe, and multiple telescopic support devices are evenly distributed around the axis at both ends of the outer surface of the pipe body. The multiple telescopic support devices are arranged along the radial direction of the pipe body and relatively fix the embedded sleeve in the wall and the wall-penetrating pipe passing through the sleeve when extended to a certain extent.

2. A device for controlling the distance between a pipeline and a casing as claimed in claim 1, characterized in that: The telescopic support devices at both ends of the tube body are opposite to each other front and back, and there are four telescopic support devices at the front and rear ends respectively.

3. A device for controlling the distance between a pipeline and a casing as claimed in claim 2, characterized in that: The tube body is formed by connecting a first semicircular arc plate and a second semicircular arc plate.

4. A device for controlling the distance between a pipeline and a casing as claimed in claim 3, characterized in that: One end of the first semicircular arc plate and the second semicircular arc plate on the same side is hinged by a hinge shaft, and the other ends of the first semicircular arc plate and the second semicircular arc plate are folded outward to form connecting plates, and the two connecting plates are fixedly connected by locking bolts.

5. A device for controlling the distance between a pipeline and a casing as claimed in claim 4, characterized in that: There are two telescopic support devices at both ends of the first semicircular arc plate and the second semicircular arc plate respectively.

6. A device for controlling the distance between a pipeline and a casing as claimed in claim 5, characterized in that: The telescopic support device comprises a nut, a screw rod and a support block. The bottom end of the nut is rotatably connected to the outer surface of the tube body, the screw rod is threaded into the nut, and the top end of the screw rod is provided with a support block.

7. A device for controlling the distance between a pipeline and a casing as claimed in claim 6, characterized in that: The lower end of the nut is rotatably connected to the outer surface of the tube body through a thrust bearing. The same side ends of the first semicircular arc plate and the second semicircular arc plate are respectively provided with pull rods in directions parallel to the axial direction. The outer ends of the two pull rods are commonly connected with a fixing ring, which is used to be sleeved outside the wall-penetrating pipe and detached from the outer surface of the wall-penetrating pipe.

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