Direct-buried steam thermal insulation pipe with prefabricated steel pipe capable of freely sliding

Abstract

The utility model provides a directly-buried steam thermal insulation pipe with a freely-sliding prefabricated steel pipe, and relates to the field of directly-buried thermal insulation pipelines. The directly-buried steam thermal insulation pipe with the prefabricated steel pipe capable of freely sliding comprises a thermal insulation outer pipe and a thermal insulation inner pipe, a fixing mechanism for fixing the steel pipe is arranged in the thermal insulation inner pipe, the fixing mechanism comprises a lower supporting plate and a connecting block, a sliding mechanism for transferring the steel pipe is arranged in the thermal insulation inner pipe, and the sliding mechanism comprises a movable plate. And the interior of the movable plate is rotationally connected with a transmission roller. According to the directly-buried steam heat preservation pipe with the prefabricated steel pipe capable of freely sliding, the steel pipe is supported and fixed through the lower supporting plate, the connecting block is controlled to move through the sliding sleeve, the steel pipe is fixed and clamped, the movable plate is controlled to move, the movable plate drives the transmission roller to move upwards, and the transmission roller is driven to the position higher than the lower supporting plate; the steel pipe can slide freely and conveniently, and the replacement efficiency of the steel pipe is improved.

Description

Technical Field

[0001] The utility model relates to a prefabricated directly buried steam heat preservation pipe, in particular to a directly buried steam heat preservation pipe with free sliding of a prefabricated steel pipe, belonging to the technical field of directly buried heat preservation pipelines. Background Technique

[0002] Directly buried heat preservation pipelines, also called prefabricated heat preservation pipelines, are divided into two types: plastic-sheathed steel prefabricated heat preservation pipes and steel-sheathed steel heat preservation pipes (high-temperature steam heat preservation pipes). Directly buried heat preservation pipelines have excellent characteristics such as high-efficiency heat preservation, waterproof, anti-corrosion, heat insulation, sound insulation, flame retardant, cold resistance, anti-corrosion, light weight, high strength, simple and fast construction, and not afraid of plant root thorns. They have become indispensable materials for heat insulation, waterproof plugging, sealing, etc.

[0003] The utility model with the patent number CN219734667U relates to the technical field of heat preservation pipes, and discloses a plug-in type steam directly buried heat preservation pipe, including an outer sleeve pipe and a port connecting pipe. A working pipe is arranged inside the outer sleeve pipe, and an integrally formed outer pipe extension part is arranged on the front side of the outer sleeve pipe. Through the mutual adsorption of a first magnetic ring and a second magnetic ring, the outer sleeve pipe and the port connecting pipe are spliced. Through the cooperation of the outer sleeve pipe and the port connecting pipe, the airtightness and integrity of the outer sleeve pipe are improved, and at the same time, it is convenient to weld the fixing frame inside the pipe.

[0004] When the steam pipeline is in use, in order to insulate the medium, directly buried heat preservation pipelines will be used. For the heat preservation pipe in the above patent, although it is convenient to splice, when the steam pipeline is installed and replaced, the installation of fasteners is more cumbersome, and the friction force is larger when the pipeline is inserted, increasing the difficulty of installing and replacing the steam pipeline; for this reason, we provide a directly buried steam heat preservation pipe with free sliding of a prefabricated steel pipe to solve the above problems. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a directly buried steam heat preservation pipe with free sliding of a prefabricated steel pipe to solve the problem that the replacement and maintenance of the steam pipeline in the comparative document are more cumbersome.

[0007] (2) Technical Solutions

[0008] The utility model is realized through the following technical solutions: a directly buried steam heat preservation pipe with free sliding of a prefabricated steel pipe.

[0009] It includes a thermal insulation outer pipe and a thermal insulation inner pipe. A power mechanism is arranged inside the thermal insulation outer pipe. The power mechanism includes a rotating shaft and a protective sleeve. A fixing mechanism for fixing a steel pipe is arranged inside the thermal insulation inner pipe. The fixing mechanism includes a lower support plate and a connecting block. A sliding sleeve is fixedly connected to the middle of the connecting block. A sliding mechanism for transmitting the steel pipe is arranged inside the thermal insulation inner pipe. The sliding mechanism includes a movable plate, and a transmission roller is rotatably connected inside the movable plate.

[0010] Preferably, the protective sleeve is fixedly connected to the thermal insulation outer pipe, and the rotating shaft rotates inside the protective sleeve. A linkage for controlling the rotation of the rotating shaft is installed in the middle of the thermal insulation outer pipe. An external power source controls the rotation of the rotating shaft through the linkage.

[0011] Preferably, the lower support plate is fixedly connected to the thermal insulation outer pipe. An upper clamping plate is fixedly connected to the bottom end of the connecting block, and the upper clamping plate is located directly above the lower support plate. The sliding sleeve is slidably connected to the thermal insulation inner pipe. The connecting block controls the upper clamping plate to approach the lower support plate to clamp and fix the steel pipe.

[0012] Preferably, a protective housing is fixedly communicated with the surface of the protective sleeve. A threaded rod is threadedly connected inside the sliding sleeve, and the threaded rod is rotatably connected to the protective housing. The protective housing protects the threaded rod and the sliding sleeve to improve the stability of the operation of the threaded rod and the sliding sleeve.

[0013] Preferably, a worm gear is fixedly connected to the top end of the threaded rod. The worm gear is meshed with a worm, and the worm is fixedly connected to the rotating shaft. The rotation of the worm is controlled by the rotating shaft, and then the worm gear drives the threaded rod to rotate.

[0014] Preferably, a sliding groove is opened inside the protective housing. A sliding block is slidably connected inside the sliding groove, and the sliding block is fixedly connected to the sliding sleeve. The sliding sleeve is limited by the sliding groove and the sliding block so that the sliding sleeve can only slide up and down.

[0015] Preferably, a connecting frame is fixedly connected to the surface of the connecting block. A C-shaped frame is fixedly connected to the surface of the connecting frame, and the bottom end of the C-shaped frame is fixedly connected to the movable plate. The connecting block drives the C-shaped frame to drive the movable plate to move through the connecting frame.

[0016] Preferably, a telescopic pipe is fixedly connected to the bottom of the movable plate, and the bottom end of the telescopic pipe is fixedly connected to the thermal insulation inner pipe. The telescopic pipe prevents the steel pipe from driving the movable plate to swing horizontally.

[0017] The utility model provides a directly buried steam thermal insulation pipe with a prefabricated steel pipe that can slide freely, and the beneficial effects thereof are as follows:

[0018] 1. The prefabricated steel pipe free-sliding direct-buried steam insulation pipe protects the rotating shaft through the protective sleeve, supports and fixes the steel pipe through the lower support plate, and facilitates the storage of the transmission roller. The connecting block is controlled to move up and down by the sliding sleeve to fix and clamp the steel pipe, and the movement of the movable plate is controlled. The transmission roller is driven upward by the movable plate and driven to a position higher than the lower support plate, so that the steel pipe and the transmission roller surface are in conflict with each other, which facilitates the free sliding of the steel pipe and improves the efficiency of steel pipe replacement.

[0019] 2. The prefabricated steel pipe is a directly buried steam insulation pipe that slides freely. The external power source controls the rotation of the rotating shaft through the linkage parts, thereby improving the convenience of the rotating shaft rotation. The upper clamping plate is controlled by the connecting block to be close to the lower support plate to clamp and fix the steel pipe, thereby improving the stability of the steel pipe operation. The threaded rod and the sliding sleeve are protected by the protective shell, thereby improving the stability of the threaded rod rotation and the up and down sliding of the sliding sleeve. The worm is controlled to rotate by the rotating shaft, and then the worm wheel drives the threaded rod to rotate, thereby improving the stability of the threaded rod rotation.

[0020] 3. The prefabricated steel pipe directly buried steam insulation pipe that slides freely fixes the sliding block through the sliding groove, and then limits the sliding sleeve to prevent the sliding sleeve from rotating and improve the stability of the sliding sleeve sliding up and down. The connecting block uses the connecting frame to make the C-shaped frame drive the movable plate to move, thereby improving the stability of the movable plate moving up and down. The movable plate is limited by the telescopic tube to prevent the steel pipe from driving the movable plate to swing horizontally, thereby improving the stability of the movable plate operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the thermal insulation inner tube of the utility model;

[0023] Figure 3 This is a schematic diagram of the explosion structure of the connecting frame of the utility model;

[0024] Figure 4 For this utility model Figure 2 A-section structure enlarged view.

[0025]

Main component symbol description

[0026] 1. Insulation outer tube; 2. Insulation inner tube;

[0027] 3. Power mechanism; 301. Rotating shaft; 302. Linkage member; 303. Protective sleeve;

[0028] 4. Fixing mechanism; 401. Lower support plate; 402. Upper clamping plate; 403. Connecting block; 404. Sliding sleeve; 405. Protection shell; 406. Threaded rod; 407. Worm gear; 408. Worm; 409. Sliding groove; 410. Sliding block;

[0029] 5. Sliding mechanism; 501. Movable plate; 502. Driving roller; 503. Connecting frame; 504. C-shaped frame; 505. Telescopic tube; 506. Telescopic spring. Detailed implementation manner

[0030] An embodiment of the utility model provides a directly buried steam heat-insulating pipe with a prefabricated steel pipe capable of freely sliding.

[0031] Please refer to Figure 1 , which includes a heat-insulating outer pipe 1 and a heat-insulating inner pipe 2. The heat-insulating outer pipe 1 and the heat-insulating inner pipe 2 are filled with heat-insulating materials inside, and the heat-insulating outer pipe 1 and the heat-insulating inner pipe 2 are connected together to form a directly buried steam heat-insulating pipe to insulate the medium transported by the steel pipe.

[0032] A power mechanism 3 is arranged inside the heat-insulating outer pipe 1. The power mechanism 3 includes a rotating shaft 301 and a protection sleeve 303. Through the protection sleeve 303, the rotating shaft 301 is protected to prevent the heat-insulating material from winding around the surface of the rotating shaft 301, and the rotation stability of the rotating shaft 301 is improved.

[0033] The protection sleeve 303 is fixedly connected to the heat-insulating outer pipe 1, and the rotating shaft 301 rotates inside the protection sleeve 303. A linkage 302 for controlling the rotation of the rotating shaft 301 is installed in the middle of the heat-insulating outer pipe 1. The external power source controls the rotation of the rotating shaft 301 through the linkage 302, improving the convenience of the rotation of the rotating shaft 301.

[0034] Please refer to Figure 3 and Figure 4 , a fixing mechanism 4 for fixing the steel pipe is arranged inside the heat-insulating inner pipe 2. The fixing mechanism 4 includes a lower support plate 401 and a connecting block 403. A sliding sleeve 404 is fixedly connected to the middle of the connecting block 403. Through the lower support plate 401, the steel pipe is supported and fixed, and it is convenient to store the driving roller 502 to prevent the driving roller 502 from contacting the steel pipe when fixing the steel pipe. The connecting block 403 is controlled to move up and down through the sliding sleeve 404 to fix and clamp the steel pipe, and the movable plate 501 is synchronously controlled to move up and down.

[0035] The lower support plate 401 is fixedly connected to the heat-insulating outer pipe 1. The bottom end of the connecting block 403 is fixedly connected to the upper clamping plate 402, and the upper clamping plate 402 is located directly above the lower support plate 401. The sliding sleeve 404 is slidably connected to the heat-insulating inner pipe 2. By controlling the connecting block 403, the upper clamping plate 402 is moved closer to the lower support plate 401 to clamp and fix the steel pipe, improving the stability of the steel pipe during operation.

[0036] The surface of the protective sleeve 303 is fixedly communicated with a protective shell 405. The bottom end of the protective shell 405 is fixedly communicated with the heat-insulating inner pipe 2. The internal thread of the sliding sleeve 404 is connected to a threaded rod 406, and the threaded rod 406 is rotatably connected to the protective shell 405. Through the protective shell 405, the threaded rod 406 and the sliding sleeve 404 are protected, improving the stability of the rotation of the threaded rod 406 and the up-and-down sliding of the sliding sleeve 404.

[0037] The top end of the threaded rod 406 is fixedly connected to a worm gear 407. The worm gear 407 is meshed with a worm 408, and the worm 408 is fixedly connected to the rotating shaft 301. By controlling the rotation of the worm 408 through the rotating shaft 301, the worm gear 407 drives the threaded rod 406 to rotate, improving the stability of the rotation of the threaded rod 406.

[0038] A sliding groove 409 is formed inside the protective shell 405. A sliding block 410 is slidably connected inside the sliding groove 409, and the sliding block 410 is fixedly connected to the sliding sleeve 404. Through the sliding groove 409, the sliding block 410 is fixed, and then the sliding sleeve 404 is limited to prevent the sliding sleeve 404 from rotating, improving the stability of the up-and-down sliding of the sliding sleeve 404.

[0039] Please refer to Figure 2 , a sliding mechanism 5 for transmitting the steel pipe is arranged inside the heat-insulating inner pipe 2. The sliding mechanism 5 includes a movable plate 501. A transmission roller 502 is rotatably connected inside the movable plate 501. By driving the transmission roller 502 to move upward through the movable plate 501, the transmission roller 502 is driven to a position higher than the lower support plate 401. When the steel pipe is transmitted, the surface of the steel pipe abuts against the surface of the transmission roller 502, facilitating the random sliding of the steel pipe and improving the efficiency of steel pipe replacement.

[0040] A connecting frame 503 is fixedly connected to the surface of the connecting block 403. A C-shaped frame 504 is fixedly connected to the surface of the connecting frame 503, and the bottom end of the C-shaped frame 504 is fixedly connected to the movable plate 501. The connecting block 403 drives the C-shaped frame 504 to drive the movable plate 501 to move through the connecting frame 503, improving the stability of the up-and-down movement of the movable plate 501.

[0041] A telescopic tube 505 is fixedly connected to the bottom of the movable plate 501, and the bottom end of the telescopic tube 505 is fixedly connected to the heat preservation inner tube 2. Through the telescopic tube 505, the movable plate 501 is limited, preventing the steel pipe from driving the movable plate 501 to swing laterally and improving the stability of the operation of the movable plate 501.

[0042] The linkage 302 is an existing device, and its specific structure and parameters will not be elaborated too much.

[0043] When the present utility model is in use: an external power source controls the rotation of the rotating shaft 301 through the linkage 302, so that the rotating shaft 301 controls the rotation of the worm 408, and further the worm wheel 407 drives the threaded rod 406 to rotate, controlling the upward movement of the sliding sleeve 404 and the connecting block 403, so that the upper clamping plate 402 moves away from the lower support plate 401, facilitating the pulling of the steel pipe. Through the connecting frame 503, the C-shaped frame 504 drives the movable plate 501 to drive the roller 502 upward, driving the roller 502 to a position higher than the lower support plate 401. When the steel pipe is transmitted, the steel pipe abuts against the surface of the roller 502, enabling the steel pipe to slide freely, reducing the difficulty of replacing the steel pipe and improving the efficiency of replacing the steel pipe.

[0044] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A directly buried steam heat-insulating pipe with prefabricated steel pipes sliding freely, comprising an outer heat-insulating pipe (1) and an inner heat-insulating pipe (2), characterized in that: Inside the heat-insulating outer pipe (1), a power mechanism (3) is provided. The power mechanism (3) includes a rotating shaft (301) and a protective sleeve (303). Inside the heat-insulating inner pipe (2), a fixing mechanism (4) for fixing the steel pipe is provided. The fixing mechanism (4) includes a lower support plate (401) and a connecting block (403). In the middle of the connecting block (403), a sliding sleeve (404) is fixedly connected. Inside the heat-insulating inner pipe (2), a sliding mechanism (5) for transmitting the steel pipe is provided. The sliding mechanism (5) includes a movable plate (501). Inside the movable plate (501), a transmission roller (502) is rotatably connected.

2. The directly buried steam heat-insulating pipe with prefabricated steel pipes sliding freely according to claim 1, characterized in that: The protective sleeve (303) is fixedly connected to the heat-insulating outer pipe (1), and the rotating shaft (301) rotates inside the protective sleeve (303). In the middle of the heat-insulating outer pipe (1), a linkage member (302) for controlling the rotation of the rotating shaft (301) is installed.

3. The directly buried steam heat-insulating pipe with prefabricated steel pipes sliding freely according to claim 1, characterized in that: The lower support plate (401) is fixedly connected to the heat-insulating outer pipe (1). At the bottom end of the connecting block (403), an upper clamping plate (402) is fixedly connected, and the upper clamping plate (402) is located directly above the lower support plate (401). The sliding sleeve (404) is slidably connected to the heat-insulating inner pipe (2).

4. A directly buried steam insulating pipe with prefabricated steel pipes sliding freely according to claim 1, characterized in that: On the surface of the protective sleeve (303), a protective housing (405) is fixedly communicated. Inside the sliding sleeve (404), a threaded rod (406) is threadedly connected, and the threaded rod (406) is rotatably connected to the protective housing (405).

5. The directly buried steam heat-insulating pipe with prefabricated steel pipes sliding freely according to claim 4, wherein: At the top end of the threaded rod (406), a worm gear (407) is fixedly connected. The worm gear (407) is meshed with a worm (408), and the worm (408) is fixedly connected to the rotating shaft (301).

6. The directly buried steam insulating pipe with prefabricated steel pipes sliding freely according to claim 4, characterized in that: Inside the protective housing (405), a sliding groove (409) is formed. Inside the sliding groove (409), a sliding block (410) is slidably connected, and the sliding block (410) is fixedly connected to the sliding sleeve (404).

7. A directly buried steam heat-insulating pipe with prefabricated steel pipes sliding freely according to claim 1, characterized in that: On the surface of the connecting block (403), a connecting frame (503) is fixedly connected. On the surface of the connecting frame (503), a C-shaped frame (504) is fixedly connected, and the bottom end of the C-shaped frame (504) is fixedly connected to the movable plate (501).

8. The directly buried steam insulating pipe with prefabricated steel pipes sliding freely according to claim 1, wherein: At the bottom of the movable plate (501), a telescopic tube (505) is fixedly connected, and the bottom end of the telescopic tube (505) is fixedly connected to the heat-insulating inner pipe (2).

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