High-density polyurethane directly-buried thermal insulation pipe with sealing head

Abstract

The utility model relates to the technical field of thermal insulation pipes, and discloses a high-density polyurethane directly-buried thermal insulation pipe with a sealing head, which comprises a thermal insulation pipe main body, the outer side surface of the thermal insulation pipe main body is sleeved with two positioning lantern rings, the two positioning lantern rings are arranged up and down, and the positioning lantern rings are connected with the outer side surface of the thermal insulation pipe main body through bearings; adjusting mechanisms are arranged on the two sides of the heat preservation pipe body, sealing mechanisms are arranged at the other ends of the adjusting mechanisms, adjusting grooves are formed in the upper side face and the lower side face of the heat preservation pipe body, positioning grooves are formed in the heat preservation pipe body, and clamping grooves are formed in the outer side face of a positioning lantern ring. The lower end of the sliding rod is located in the adjusting groove and slidably connected with the inner wall of the adjusting groove, the connecting frame and the positioning lantern ring are connected through the inserting bolt, the connecting frame is fixed, then the cover plate is fixed, the clamping base is clamped with the interior of the heat preservation pipe, the interior of the heat preservation pipe is sealed through the clamping base, and internal raw materials are prevented from making contact with outside air.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a high-density polyurethane direct-buried thermal insulation pipe with a sealing head. Background Art

[0002] The existing polyurethane direct buried thermal insulation pipe comprises an inner pipe, an outer pipe and a polyurethane thermal insulation layer, wherein the polyurethane thermal insulation layer is located between the inner pipe and the outer pipe;

[0003] Since the media transported in the inner tube are mainly high-temperature liquid and high-temperature steam, the inner tube will be axially displaced due to thermal expansion and contraction, which will cause a gap between the polyurethane insulation layer and the inner tube, greatly affecting the sealing performance. In this way, the outside air will gradually penetrate into the polyurethane insulation layer, causing corrosion of the polyurethane insulation layer, affecting the use effect of the polyurethane insulation layer;

[0004] Therefore, a high-density polyurethane direct-buried thermal insulation pipe with a sealing head is proposed. Utility Model Content

[0005] The utility model aims to provide a high-density polyurethane direct-buried thermal insulation pipe with a sealing head to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-density polyurethane direct-buried thermal insulation pipe with a sealing head, comprising a thermal insulation pipe body, a positioning collar is sleeved on the outer side of the thermal insulation pipe body, two positioning collars are arranged on the upper and lower sides, the positioning collars are connected to the outer side bearings of the thermal insulation pipe body, adjustment mechanisms are arranged on both sides of the thermal insulation pipe body, and a sealing mechanism is arranged on the other end of the adjustment mechanism;

[0007] The upper and lower sides of the insulation pipe body are both provided with adjustment grooves, the interior of the insulation pipe body is provided with a positioning groove, and the outer side of the positioning collar is provided with a clamping groove;

[0008] The adjusting mechanism comprises an adjusting part and a connecting part.

[0009] Preferably, the adjustment part includes a sliding rod, the lower end of the sliding rod is located inside the adjustment groove and is slidably connected to the inner wall of the adjustment groove, positioning rods are fixedly provided on the top surfaces of the left and right sliding rods, and clamping rods are fixedly provided on the top surfaces of the front and rear sliding rods, and the upper ends of the positioning rods and the clamping rods are fixedly sleeved with fixing rings.

[0010] Preferably, a connecting ring is provided above the positioning rod and the clamping rod, the upper end of the positioning rod passes through the connecting ring and extends to above the connecting ring, and a placement groove is provided on the bottom surface of the connecting ring, and the placement groove is adapted to the size of the fixing ring.

[0011] Preferably, the connecting part includes a fixed block, which is located on the side of the clamping rod, and a connecting rod is fixedly provided at the end close to the clamping rod. Two connecting rods are provided above and below, and the other end of the connecting rod passes through the clamping rod and is slidably connected to the clamping rod. A return spring is provided between the two connecting rods, and both ends of the return spring are respectively fixedly connected to the clamping rod and the fixed block.

[0012] Preferably, an insulation pipe is arranged inside the insulation pipe body, and a convex rod is fixedly arranged on the outer side surface of the insulation pipe, and the convex rod is matched with the positioning groove.

[0013] Preferably, the sealing mechanism comprises a cover plate, which is threadedly connected to the outer side surface of the connecting ring, and a clamping seat is fixedly provided inside the bottom surface of the cover plate, and the lower end of the clamping seat passes through the insulation pipe and contacts the inner wall of the insulation pipe.

[0014] Preferably, a connecting frame is fixedly provided above the cover plate, and a rotating handle is fixedly provided on the top surface of the connecting frame.

[0015] Preferably, a plug is provided on the outer side of the lower end of the connecting frame, the plug connects the connecting frame with the positioning collar, and the plug is matched with the clamping groove.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the high-density polyurethane direct-buried thermal insulation pipe with a sealing head is

[0017] 1) The upper end of the clamping rod passes through the rear end of the connecting ring. Under the action of the reset spring, the fixing block moves to fix the connecting ring, which is convenient for fixing the connecting ring and disassembly.

[0018] 2) Connect the connecting frame and the positioning ring through the plug to fix the connecting frame, and then fix the cover plate, and the clamping seat is clamped with the inside of the insulation pipe, so that the clamping seat can seal the inside of the insulation pipe to prevent the internal raw materials from contacting with the outside air. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a cross-sectional view of the main body of the thermal insulation pipe of the utility model;

[0021] Figure 3 This is an exploded diagram of the adjustment mechanism of the utility model;

[0022] Figure 4 For this utility model Figure 3 Enlarged view of part A;

[0023] Figure 5 It is a three-dimensional schematic diagram of the sealing mechanism of the utility model.

[0024] In the figure: 1 insulation pipe body, 2 positioning collar, 3 adjustment mechanism, 31 sliding rod, 32 positioning rod, 33 clamping rod, 34 fixing collar, 35 connecting ring, 36 fixing block, 37 connecting rod, 38 return spring, 4 sealing mechanism, 41 cover plate, 42 clamping seat, 43 connecting frame, 44 rotating handle, 45 plug, 5 insulation pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Embodiment 1

[0026] See also Figure 1-Figure 5 The utility model provides a technical solution: a high-density polyurethane direct-buried thermal insulation pipe with a sealing head, comprising a thermal insulation pipe body 1, a positioning collar 2 is sleeved on the outer side of the thermal insulation pipe body 1, two positioning collars 2 are arranged on the upper and lower sides, the positioning collar 2 is connected to the outer side bearing of the thermal insulation pipe body 1, and adjustment mechanisms 3 are arranged on both sides of the thermal insulation pipe body 1, and a sealing mechanism 4 is arranged at the other end of the adjustment mechanism 3;

[0027] The upper and lower sides of the insulation pipe body 1 are provided with adjustment grooves, the interior of the insulation pipe body 1 is provided with a positioning groove, and the outer side of the positioning collar 2 is provided with a clamping groove;

[0028] The adjusting mechanism 3 includes an adjusting portion and a connecting portion.

[0029] The adjustment part includes a sliding rod 31, the lower end of the sliding rod 31 is located inside the adjustment groove and is slidably connected to the inner wall of the adjustment groove, a positioning rod 32 is fixedly provided on the top surface of the left and right sliding rods 31, and a clamping rod 33 is fixedly provided on the top surface of the front and rear sliding rods 31, and a fixing ring 34 is fixedly sleeved on the upper ends of the positioning rod 32 and the clamping rod 33;

[0030] A connecting ring 35 is arranged above the positioning rod 32 and the clamping rod 33. The upper end of the positioning rod 32 passes through the connecting ring 35 and extends to the top of the connecting ring 35. A placement groove is arranged on the bottom surface of the connecting ring 35. The placement groove is adapted to the size of the fixing ring 34.

[0031] The connecting portion includes a fixing block 36, which is located on the side of the clamping rod 33. A connecting rod 37 is fixedly arranged at the end of the fixing block 36 close to the clamping rod 33. Two connecting rods 37 are arranged at the top and the bottom. The other end of the connecting rod 37 passes through the clamping rod 33 and is slidably connected to the clamping rod 33. A return spring 38 is arranged between the two connecting rods 37. The two ends of the return spring 38 are fixedly connected to the clamping rod 33 and the fixing block 36 respectively.

[0032] Furthermore, in this embodiment, the upper ends of the positioning rod 32 and the upper ends of the clamping rod 33 are both passed through the connecting ring 35 and extend above the connecting ring 35. The fixing ring 34 sleeved on the positioning rod 32 and the clamping rod 33 supports and positions the connecting ring 35. The upper end of the clamping rod 33 passes through the rear end of the connecting ring 35. Under the action of the reset spring 38, the fixing block 36 moves to fix the connecting ring 35.

[0033] Furthermore, in this embodiment, the upper end of the clamping rod 33 penetrates the rear end of the connecting ring 35, and under the action of the reset spring 38, the fixing block 36 moves to fix the connecting ring 35, which is convenient for fixing the connecting ring 35 and easy for disassembly; Embodiment 2

[0034] See also Figure 1-Figure 5 , and on the basis of the first embodiment, it is further obtained that: the insulation pipe body 1 is provided with an insulation pipe 5 inside, and the outer side of the insulation pipe 5 is fixedly provided with a convex rod, and the convex rod is adapted to the positioning groove;

[0035] The sealing mechanism 4 includes a cover plate 41, which is threadedly connected to the outer side of the connecting ring 35, and a clamping seat 42 is fixedly arranged inside the bottom surface of the cover plate 41. The lower end of the clamping seat 42 penetrates the insulation pipe 5 and contacts the inner wall of the insulation pipe 5.

[0036] A connecting frame 43 is fixedly provided above the cover plate 41, and a rotating handle 44 is fixedly provided on the top surface of the connecting frame 43;

[0037] A plug 45 is provided on the outer side of the lower end of the connecting frame 43, and the plug 45 connects the connecting frame 43 with the positioning collar 2, and the plug 45 is adapted to the clamping groove;

[0038] Furthermore, the insulation pipe 5 of this embodiment is clamped with the inside of the insulation pipe body 1, so that the insulation pipe 5 can be positioned. At the same time, the lower end of the cover plate 41 is threadedly connected with the connecting ring 35, and a plug 45 is provided on the outside of the connecting frame 43. The plug 45 connects the connecting frame 43 with the positioning collar 2, so that the connecting frame 43 is fixed, and then the cover plate 41 is fixed, and the clamping seat 42 is clamped with the inside of the insulation pipe 5;

[0039] Furthermore, in this embodiment, the connecting frame 43 is connected to the positioning ring 2 by a plug 45, so that the connecting frame 43 is fixed, and then the cover plate 41 is fixed, and the clamping seat 42 is clamped with the inside of the insulation pipe 5, so that the clamping seat 42 seals the inside of the insulation pipe 5 to prevent the internal raw materials from contacting the outside air.

[0040] When the locking nut 35 is unlocked, the locking nut 35 is unlocked and the locking nut 35 is unlocked, so that the locking nut 35 is unlocked and the locking nut 35 is unlocked.

[0041] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-density polyurethane direct-buried thermal insulation pipe with a sealing head, comprising a thermal insulation pipe body (1), characterized in that: The outer side surface of the thermal insulation pipe body (1) is sleeved with a positioning collar (2), two positioning collars (2) are arranged at the top and the bottom, and the positioning collars (2) are connected to the outer side bearing of the thermal insulation pipe body (1). Adjustment mechanisms (3) are arranged on both sides of the thermal insulation pipe body (1), and a sealing mechanism (4) is arranged at the other end of the adjustment mechanism (3); The upper and lower sides of the thermal insulation pipe body (1) are both provided with adjustment grooves, the interior of the thermal insulation pipe body (1) is provided with a positioning groove, and the outer side of the positioning collar (2) is provided with a clamping groove; The adjustment mechanism (3) comprises an adjustment part and a connection part.

2. A high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 1, characterized in that: The adjusting portion comprises a sliding rod (31), the lower end of the sliding rod (31) is located inside the adjusting groove and is slidably connected to the inner wall of the adjusting groove, the top surfaces of the left and right sliding rods (31) are fixedly provided with positioning rods (32), the top surfaces of the front and rear sliding rods (31) are fixedly provided with clamping rods (33), and the upper ends of the positioning rods (32) and the clamping rods (33) are fixedly sleeved with fixing rings (34).

3. A high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 2, characterized in that: A connecting ring (35) is provided above the positioning rod (32) and the clamping rod (33); the upper end of the positioning rod (32) passes through the connecting ring (35) and extends to the top of the connecting ring (35); a placement groove is provided on the bottom surface of the connecting ring (35); the placement groove is adapted in size to the fixing ring (34).

4. The high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 1, characterized in that: The connecting portion comprises a fixing block (36), the fixing block (36) being located at a side of the clamping rod (33), a connecting rod (37) being fixedly arranged at the end of the fixing block (36) close to the clamping rod (33), two connecting rods (37) being arranged at the top and the bottom, the other end of the connecting rod (37) passing through the clamping rod (33) and being slidably connected to the clamping rod (33), a return spring (38) being arranged between the two connecting rods (37), the two ends of the return spring (38) being fixedly connected to the clamping rod (33) and the fixing block (36) respectively.

5. The high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 1, characterized in that: A thermal insulation pipe (5) is arranged inside the thermal insulation pipe body (1), and a protruding rod is fixedly arranged on the outer side surface of the thermal insulation pipe (5), and the protruding rod is matched with the positioning groove.

6. The high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 1, characterized in that: The sealing mechanism (4) comprises a cover plate (41) which is threadedly connected to the outer side surface of the connecting ring (35); a clamping seat (42) is fixedly arranged inside the bottom surface of the cover plate (41); the lower end of the clamping seat (42) penetrates the insulation pipe (5) and contacts the inner wall of the insulation pipe (5).

7. A high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 6, characterized in that: A connecting frame (43) is fixedly arranged above the cover plate (41), and a rotating handle (44) is fixedly arranged on the top surface of the connecting frame (43).

8. The high-density polyurethane direct-buried thermal insulation pipe with a sealing head according to claim 7, characterized in that: A plug (45) is provided on the outer side of the lower end of the connecting frame (43), the plug (45) connects the connecting frame (43) and the positioning collar (2), and the plug (45) is adapted to fit the clamping groove.

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