Thermal insulation pipe butt joint assembly

Abstract

The utility model discloses a thermal insulation pipe butt joint assembly which comprises a main body mechanism, a limiting mechanism and a clamping mechanism, and the main body mechanism comprises a butt joint pipe fitting, an embedded pipe connected to the middle of an inner cavity of the butt joint pipe fitting and a sealing ring connected to the end of the embedded pipe in a sleeved mode. The limiting mechanism comprises an outer ring belt connected to the butt joint pipe fitting in a sliding mode, a rotating gear connected with the side edge of the outer ring belt in a meshed mode, and a threaded rod connected to the middle of the rotating gear and penetrating into the butt joint pipe fitting. The heat preservation pipe is clamped through the gap between the butt joint pipe fitting and the embedded pipe, all-directional wrapping is achieved, sealing butt joint can be achieved with the assistance of the sealing ring, in order to guarantee butt joint firmness, the fixing head abuts against the outer wall of the heat preservation pipe through pressure provided by the spring, and in order to avoid loosening, the fixing head is fixed to the outer wall of the heat preservation pipe. An outer ring belt is arranged to rotate to drive a rotating gear to rotate, and finally a limiting threaded block is driven to be pressed on the inner end of a retention head, so that looseness is avoided, and butt joint is easier and faster.

Description

TECHNICAL FIELD

[0001] The utility model relates to pipeline connection technical field, concretely is a heat preservation pipe butt joint subassembly. BACKGROUND

[0002] Heat preservation pipe is the short name of heat insulation pipeline, is used for the transportation of liquid, gas and other medium, in petroleum, chemical industry, aerospace, hot spring - military, central heating, central air conditioning, municipal and other pipeline heat insulation engineering, and the length of heat preservation pipe is insufficient and needs to butt joint new heat preservation pipe, generally adopts the operation of butt joint pipe, but the existing butt joint pipe generally adopts flange and is very troublesome, and the flange needs to be installed on the end of butt joint pipe, and it is more complicated, therefore, a heat preservation pipe butt joint subassembly is provided. UTILITY MODEL CONTENTS

[0003] The utility model aims at solving one of the technical problems existing in prior art or related art.

[0004] Therefore, the utility model adopts the technical scheme that:

[0005] A heat preservation pipe butt joint subassembly, including main part mechanism, limiting mechanism and clamping mechanism, the main part mechanism includes butt joint pipe spare, the inlay pipe of connecting in the inner chamber middle part of butt joint pipe spare, the sealing ring of sleeve joint on the end of inlay pipe, the limiting mechanism includes the outer ring band of sliding connection on butt joint pipe spare, the rotation gear of meshing connection with the side edge of outer ring band, the threaded rod of connecting in the middle part of rotation gear and penetrating to the inside of butt joint pipe spare, the limiting screw block of screwing with threaded rod, the limiting rod of inserting in the inside for limiting the rotation of limiting screw block of limiting screw block, the clamping mechanism includes the sliding cavity of setting in the inside of butt joint pipe spare, the retaining head of sliding connection in the inside of sliding cavity, the connecting rod of inserting on retaining head, the spring of sleeve joint on connecting rod, the bottom end of threaded rod and limiting rod all inserts on retaining head.

[0006] Preferably, the inner ring of the outer ring band is provided with a clamping ring, and the clamping ring is slidingly clamped on the outer wall of the butt joint pipe.

[0007] Preferably, the number of rotation gears is two groups, and the threaded rods connected at the bottom of the two groups of rotation gears are opposite in screwing direction.

[0008] Preferably, the inner end of the retaining head penetrates the inner wall of the butt joint pipe and extends into the gap between the butt joint pipe and the inlay pipe.

[0009] Preferably, the rotation gears are clamped on the outer wall of the butt joint pipe, and the rotation gears are symmetrically arranged in two groups.

[0010] Preferably, the connecting rod is slidingly connected with the retaining head.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0012] In this invention, the insulation pipe is clamped by the gap between the connecting pipe and the inner tube, achieving all-round wrapping. A sealing ring is used to achieve a sealed connection. To ensure a firm connection, a spring provides pressure so that the retaining head abuts against the outer wall of the insulation pipe. To prevent loosening, an outer ring belt rotates to drive a rotating gear, which in turn drives a limiting threaded block to press against the inner end of the retaining head, preventing loosening. This makes the connection easier and faster, effectively improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0014] Figure 2 This is one embodiment of the present utility model. Figure 1 Enlarged view of point A in the middle.

[0015] Figure label:

[0016] 110. Connecting pipe fitting; 120. Embedded tube; 130. Sealing ring;

[0017] 210. Outer ring belt; 220. Snap-fit ​​ring; 230. Rotating gear; 240. Threaded rod; 250. Limiting threaded block; 260. Limiting rod;

[0018] 310, sliding cavity; 320, connecting rod; 330, spring; 340, retaining head. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0020] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a heat-insulating pipe docking assembly.

[0021] Example:

[0022] Combination Figures 1-2As shown, the present invention provides a thermal insulation pipe docking assembly, comprising a main body, a limiting mechanism, and a snap-fit ​​mechanism. The main body includes a docking pipe fitting 110, an inner tube 120 connected to the middle of the inner cavity of the docking pipe fitting 110, and a sealing ring 130 sleeved on the end of the inner tube 120. The limiting mechanism includes an outer ring band 210 slidably connected to the docking pipe fitting 110, a rotating gear 230 meshing with the side of the outer ring band 210, a threaded rod 240 connected to the middle of the rotating gear 230 and penetrating into the interior of the docking pipe fitting 110, a limiting threaded block 250 threadedly connected to the threaded rod 240, and a limiting rod 260 inserted into the limiting threaded block 250 to limit the rotation of the limiting threaded block 250. A snap-fit ​​ring 220 is installed on the inner ring of the outer ring band 210, and the snap-fit ​​ring 220 slidably snaps onto the inner ring. On the outer wall of the connecting pipe fitting 110, there are two sets of rotating gears 230. The threaded rods 240 connected to the bottom of the two sets of rotating gears 230 have opposite thread directions. The rotating gears 230 are engaged on the outer wall of the connecting pipe fitting 110, and the two sets of rotating gears 230 are symmetrically arranged. The engaging mechanism includes a sliding cavity 310 opened inside the connecting pipe fitting 110, a retaining head 340 slidably connected inside the sliding cavity 310, a connecting rod 320 inserted into the retaining head 340, and a spring 330 sleeved on the connecting rod 320. The bottom ends of the threaded rod 240 and the limiting rod 260 are both inserted into the retaining head 340. The inner end of the retaining head 340 penetrates the inner wall of the connecting pipe fitting 110 and extends into the gap between the connecting pipe fitting 110 and the inner tube 120. The connecting rod 320 is slidably connected to the retaining head 340.

[0023] Specifically, by utilizing the meshing of the racks on both sides of the outer ring belt 210 with the rotating gear 230, the outer ring belt 210 rotates around the connecting pipe fitting 110, causing the rotating gear 230 to rotate. Therefore, the threaded rod 240 linked with the rotating gear 230 will also rotate synchronously. In order to ensure that the limiting threaded blocks 250 on both sides of the threaded rod 240 rise and fall synchronously, the threads of the threaded rod 240 on both sides are set to be opposite. Therefore, it can be ensured that the limiting threaded blocks 250 on both sides are limited synchronously, which improves the reliability of the structure.

[0024] The working principle and usage process of this utility model are as follows: First, take out the insulation pipe to be connected, and then insert the ends to be connected into the two ends of the connecting pipe fitting 110 respectively. At this time, the retaining head 340 provides inward pressure under the action of the spring 330, so that the retaining head 340 squeezes and fixes the outer wall of the insulation pipe. Then, rotate the outer ring belt 210 to drive the rotating gear 230 to rotate, drive the threaded rod 240 to rotate and drive the limiting threaded block 250 to move towards the retaining head 340 until the position of the retaining head 340 is fixed, and the connection is completed.

[0025] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A thermal insulation pipe connection assembly, characterized in that, include: Main body, limiting mechanism, and locking mechanism; The main body includes a connecting pipe fitting (110), an inner tube (120) connected to the middle of the inner cavity of the connecting pipe fitting (110), and a sealing ring (130) sleeved on the end of the inner tube (120); The limiting mechanism includes an outer ring belt (210) slidably connected to the connecting pipe (110), a rotating gear (230) meshing with the side of the outer ring belt (210), a threaded rod (240) connected to the middle of the rotating gear (230) and penetrating into the interior of the connecting pipe (110), a limiting threaded block (250) threadedly connected to the threaded rod (240), and a limiting rod (260) inserted into the limiting threaded block (250) to limit the rotation of the limiting threaded block (250); The snap-fit ​​mechanism includes a sliding cavity (310) opened inside the connecting pipe fitting (110), a retaining head (340) slidably connected inside the sliding cavity (310), a connecting rod (320) inserted into the retaining head (340), and a spring (330) sleeved on the connecting rod (320). The bottom ends of the threaded rod (240) and the limiting rod (260) are both inserted into the retaining head (340).

2. The insulation pipe connection assembly according to claim 1, characterized in that, The inner ring of the outer ring (210) is equipped with a snap ring (220), which is slidably snapped onto the outer wall of the connecting pipe fitting (110).

3. The insulation pipe docking assembly according to claim 1, characterized in that, The number of rotating gears (230) is two sets, and the threaded rods (240) connected to the bottom of the two sets of rotating gears (230) have opposite thread directions.

4. The insulation pipe connection assembly according to claim 1, characterized in that, The inner end of the retaining head (340) penetrates the inner wall of the connecting pipe fitting (110) and extends into the gap between the connecting pipe fitting (110) and the inner tube (120).

5. The insulation pipe connection assembly according to claim 1, characterized in that, The rotating gear (230) is engaged on the outer wall of the connecting pipe fitting (110), and there are two sets of rotating gears (230) arranged symmetrically.

6. The insulation pipe connection assembly according to claim 1, characterized in that, The connecting rod (320) is slidably connected to the retaining head (340).

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