Heat preservation structure for pipeline joint

Abstract

The utility model relates to the technical field of thermal insulation structures, in particular to a thermal insulation structure for a pipeline joint, which comprises a sleeve sleeved outside the pipeline joint, fixing rings fixedly connected with the pipeline joint are arranged at two ends of the sleeve, a thermal insulation cavity is arranged in the sleeve between the two fixing rings, and fixing cavities are arranged in the fixing rings along the circumferential direction of the fixing rings. A plurality of telescopic plug pin pieces are evenly arranged in the fixing cavity in the circumferential direction of the fixing cavity, the plug pin pieces can stretch out of the inner side of the fixing ring, and a driving piece used for synchronously driving the plug pin pieces to stretch out and draw back is further arranged in the fixing cavity. Through the arrangement of the fixing ring, the plug pin piece and the driving piece, when the heat preservation structure is installed on the pipeline connector, a pipeline connected into the pipeline connector can be further fixedly connected, and therefore the practicability of the heat preservation structure is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation structures, in particular to a thermal insulation structure for a pipeline joint. Background Art

[0002] In the fields of central heating, cooling, oil and gas, etc., pipes used for medium transportation are often connected through pipe joints. In order to ensure the temperature performance of the pipe joints during medium transportation, they need to be insulated to prevent energy loss and improve the energy utilization rate of the equipment.

[0003] For example, patent number CN219282777U is a heating pipe joint clamp-type insulation device, which includes an insulation clamp shell and a fixing plate. After the insulation clamp shell covers the pipe joint and is assembled with each other, it is further fixed by the outer fixing plate. The threaded holes set on the fixing plate are overlapped with the threaded holes of the insulation clamp shell and then fixed with bolts. After the installation is completed, the insulation glue is injected from the glue injection holes set on the side of the insulation clamp shell to complete the insulation process of the pipe joint. Although the overall process of the heating pipe joint clamp-type insulation device is simple, the cost is low, and the construction time is short, when the clamp-type insulation device is fixedly installed outside the pipe joint, it does not have the function of further fixing the pipe installed in the pipe joint, making the practicality of the clamp-type insulation device poor. Utility Model Content

[0004] The utility model aims to provide a heat preservation structure for a pipe joint to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A heat preservation structure for a pipe joint comprises a sleeve sleeved outside the pipe joint, fixing rings fixedly connected to the pipe joint are arranged at both ends of the sleeve, a heat preservation cavity is arranged in the sleeve between the two fixing rings, a fixing cavity is arranged in the fixing ring along its circumference, a plurality of retractable latch members are evenly arranged in the fixing cavity along its circumference, the latch members can extend out of the inner side of the fixing ring, and a driving member for synchronously driving the latch members to retract is also arranged in the fixing cavity.

[0007] Furthermore, the latch member includes a rack, which is slidably arranged in the fixed cavity along the radial direction of the fixed cavity; a rotatable shaft is also provided in the fixed cavity, and a gear is provided on the outer sleeve of the shaft. The gear is meshed with the rack, and the rotation of the shaft drives the gear to rotate to drive the rack to extend and retract in the fixed cavity.

[0008] Furthermore, the driving member includes a gear ring, the bottom wall of the gear ring is slidably fitted with the corresponding inner wall of the fixed cavity, the gear ring is meshed with the gear, and a sliding rod that can drive the gear ring to rotate is provided on the gear ring; a sliding groove is provided on the outer surface of the fixed ring, the sliding rod can extend out of the sliding groove, and the sliding rod slides along the sliding groove to drive the gear to rotate.

[0009] Furthermore, a push cylinder is provided on the outer sleeve of the sliding rod, a limit ring is provided at the end of the sliding rod extending into the push cylinder, a spring is provided in the push cylinder, and the spring is sleeved outside the sliding rod; a plurality of sockets are respectively provided at both ends of the sliding groove, and an insertion rod which can be inserted into the corresponding socket is provided on the side of the push cylinder close to the fixed ring, and the spring is used to drive the insertion rod to extend into the socket.

[0010] Furthermore, a ring gasket is provided on the outer side surface of the inner ring of the fixing ring.

[0011] Furthermore, the heat preservation cavity is filled with heat preservation material.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model, through the arrangement of the fixing ring, the latch member and the driving member, enables the pipe installed in the pipe joint to be further fixed when the pipe joint is installed on the pipe joint with the thermal insulation structure, thereby improving the practicality of the thermal insulation structure.

[0014] 2. The utility model, through the setting of the driving member, enables the pipe joint to be connected to the pipe with the insulation structure, and the latch member can be extended and retracted by pulling the dial and sliding the dial along the slide groove, so that the latch member can fix the pipe and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the thermal insulation structure for the pipe joint in the utility model.

[0016] Figure 2 It is a vertical cross-sectional schematic diagram of the thermal insulation structure for the pipe joint and the pipe in the utility model.

[0017] Figure 3 It is a structural schematic diagram of the fixing ring in the utility model.

[0018] Figure 4 It is a structural schematic diagram of the slide groove and the pull cylinder in the utility model.

[0019] Figure 5 It is a vertical cross-sectional schematic diagram of the slide rod and the paddle cylinder in the utility model.

[0020] The meanings of the numbers in the figure are as follows: 100, sleeve; 110, fixing ring; 120, ring gasket; 130, through hole; 140, dial cylinder; 150, slide groove; 160, slide rod; 170, plug hole; 180, plug rod; 200, pipeline; 210, pipeline joint; 211, insulation chamber; 220, rack; 230, gear; 240, gear ring; 250, fixing chamber; 500, limit ring; 510, spring. DETAILED DESCRIPTION

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0022] The following is combined with Figure 1-Figure 5 This embodiment is described in further detail.

[0023] See also Figure 1-Figure 3 In this embodiment, a heat preservation structure for a pipe joint includes a sleeve 100 sleeved on the outside of the pipe joint 210, and fixed rings 110 fixedly connected to the pipe joint 210 are provided at both ends of the sleeve 100. A heat preservation cavity 211 is provided in the sleeve 100 between the two fixed rings 110, and a fixed cavity 250 is provided in the fixed ring 110 along its circumference. A plurality of retractable latch members are evenly arranged in the fixed cavity 250 along its circumference. The latch members can extend out of the inner side of the fixed ring 110, and a driving member for synchronously driving the latch members to retract is also provided in the fixed cavity 250.

[0024] In actual use of this embodiment, the sleeve 100 is columnar, and the diameter of the sleeve 100 is larger than the diameter of the pipe joint 210, so that an annular heat preservation cavity 211 is formed between the sleeve 100 and the pipe joint 210. In actual use, the heat preservation cavity 211 is filled with heat preservation material. When the pipe 200 is connected to the pipe joint 210, the heat preservation material can keep the pipe joint 210 and the pipe 200 warm, and the applicability is better.

[0025] The fixing ring 110 is fixed to the two ends of the sleeve 100 and the pipe joint 210 by welding. In actual use, the pipe 200 can pass through the fixing ring 110 and be threadedly connected to the corresponding end of the pipe joint 210. The outer side surface of the pipe 200 is provided with an annular slot along the circumference of the pipe 200. When the pipe 200 is threadedly connected to the pipe joint 210, the latch can be inserted into the corresponding annular slot, thereby further fixing the pipe 200. When the threaded connection between the pipe 200 and the pipe joint 210 is not tightened, the latch cooperates with the annular slot so that the insulation structure is fixedly installed on the pipe joint 210, and the pipe 200 installed in the pipe joint 210 can be further stably installed, thereby improving the practicality of the insulation structure.

[0026] In this embodiment, a ring gasket 120 is provided on the inner side of the fixing ring 110. When the pipe 200 is connected to the pipe joint 210, the sealing effect of the connection between the pipe 200 and the pipe joint 210 is better through the provision of the ring gasket 120.

[0027] In actual use, the present embodiment enables the latch member to be telescopically arranged in the fixed cavity 250 along the radial direction of the fixed cavity 250 through the arrangement of the driving member. When the pipe 200 is connected to the pipe joint 210, the latch member extends out and cooperates with the annular slot, so that the pipe 200 can be fixedly installed at the pipe joint 210, and its applicability is better.

[0028] See also Figure 2-Figure 3 In this embodiment, the latch member includes a rack 220, which is slidably arranged in the fixed cavity 250 along the radial direction of the fixed cavity 250; a rotatable shaft is also provided in the fixed cavity 250, and a gear 230 is provided on the outer sleeve of the shaft. The gear 230 is meshed with the rack 220, and the rotation of the shaft drives the gear 230 to rotate to drive the rack 220 to extend and retract in the fixed cavity 250.

[0029] In actual use, the fixing cavity 250 is provided with a plurality of fixing grooves along its radial direction, and the plurality of fixing grooves are evenly distributed along its circumference, and both ends of the fixing grooves are provided with openings, the rack 220 is telescopically provided in the fixing groove, and the ring gasket 120 is provided with a plurality of through holes 130 along its circumference, and the rack 220 can extend out of the fixing cavity 250 to communicate with the through holes 130, and is used to cooperate with the annular slot on the pipe 200 to achieve further fixation of the pipe 200 on the pipe joint 210;

[0030] Among them, through the coordinated arrangement of the rotating shaft, the gear 230 and the rack 220, the rotation of the rotating shaft can drive the gear 230 to rotate, and then drive the rack 220 to extend and retract in the fixed groove, which has better applicability.

[0031] See also Figure 1-Figure 4In this embodiment, the driving member includes a gear ring 240, the bottom wall of the gear ring 240 is slidably fitted with the corresponding inner wall of the fixed cavity 250, the gear ring 240 is meshed with the gear 230, and a slide rod 160 is provided on the gear ring 240 to drive the gear ring 240 to rotate; a slide groove 150 is provided on the outer surface of the fixed ring 110, the slide rod 160 can extend out of the corresponding slide groove 150, and the slide rod 160 slides along the slide groove 150 to drive the gear 230 to rotate.

[0032] In this embodiment, the gear ring 240 is rotatably disposed in the fixed cavity 250, and the gear ring 240 is located below the rack 220, and the rotation of the rack 220 will not affect the telescopic setting of the rack 220 in the fixed groove;

[0033] The bottom wall of the gear ring 240 is slidably fitted with the corresponding inner wall of the fixed cavity 250, so that the gear ring 240 can stably slide along the circumference of the fixed cavity 250, thereby achieving stable installation of the gear ring 240 in the fixed cavity 250;

[0034] In actual use, the slide groove 150 of this embodiment is arc-shaped and is arranged along the circumference of the gear ring 240. The slide groove 150 cooperates with the slide rod 160, so that the slide rod 160 is slid outside the fixed ring 110, so that the slide rod 160 can drive the gear ring 240 to rotate relatively, and then the gear ring 240 drives the gear 230 to rotate, so as to realize the extension and retraction of the rack 220.

[0035] Among them, the sliding rod 160 can be fixedly connected to the two ends of the sliding groove 150. When the sliding rod 160 slides to one end of the sliding groove 150, the gear ring 240 drives the rack 220 to extend out of the fixed ring 110. When the sliding rod 160 slides to the other end of the sliding groove 150, the gear ring 240 drives the rack 220 to retract into the fixed ring 110, thereby realizing the extension and retraction of the rack 220 in the fixed cavity 250.

[0036] See also Figure 1-Figure 5 In this embodiment, the sliding rod 160 is provided with a dial cylinder 140, and a limit ring 500 is provided at the end of the sliding rod 160 extending into the dial cylinder 140. A spring 510 is provided in the dial cylinder 140, and the spring 510 is sleeved outside the sliding rod 160; a plurality of insertion holes 170 are respectively provided at both ends of the sliding groove 150, and an insertion rod 180 that can be inserted into the corresponding insertion hole 170 is provided on the side of the dial cylinder 140 close to the fixing ring 110, and the spring 510 is used to drive the insertion rod 180 to extend into the insertion hole 170.

[0037] In this embodiment, the cylinder 140 is arranged along the length direction of the slide rod 160. Through the arrangement of the limit ring 500 and the spring 510, the spring 510 pushes the cylinder 140 to move toward the fixed ring 110, that is, the cylinder 140 drives the insertion rod 180 to extend into the corresponding insertion hole 170, so that the cylinder 140 reaches a fixed state. At this time, the cylinder 140 will not slide in the slide groove 150 due to accidental contact by external force;

[0038] Among them, when it is necessary to turn the dial cylinder 140 to drive the gear ring 240 to rotate, and then drive the pin member to be telescopically set in the fixed cavity 250, it is only necessary to move the dial cylinder 140 away from the fixed ring 110 to make the insertion rod 180 disengage from the socket 170, and then turn the dial cylinder 140 to drive the sliding rod 160 to slide in the sliding groove 150 to realize the telescopic setting of the pin member in the fixed cavity 250, which has better applicability.

[0039] Working principle: When the pipe joint is working with the insulation structure, the pipe 200 is threadedly connected to the pipe joint 210, the dial cylinder 140 is pulled to make the insertion rod 180 disengage from the insertion hole 170, and then the dial cylinder 140 is dialed to drive the slide rod 160 to slide in the slide groove 150, so that the latch member extends out of the fixing cavity 250, and the latch member is matched with the annular slot on the pipe 200, so that the pipe 200 is further fixed on the pipe joint 210, and finally the dial cylinder 140 is released to make the insertion rod 180 extend into the insertion hole 170 so that the dial cylinder 140 drives the slide rod 160 to be in a fixed state, and the insulation structure can be further fixed to the pipe 200 installed on the pipe joint 210.

[0040] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A thermal insulation structure for a pipe joint, characterized in that: The invention comprises a sleeve (100) sleeved on the outside of a pipe joint (210), wherein two ends of the sleeve (100) are provided with fixing rings (110) fixedly connected to the pipe joint (210), a heat preservation cavity (211) is provided in the sleeve (100) between the two fixing rings (110), a fixing cavity (250) is provided in the fixing ring (110) along its circumference, a plurality of retractable latch members are evenly provided in the fixing cavity (250) along its circumference, the latch members can extend out of the inner side of the fixing ring (110), a ring washer (120) is provided on the outer side surface of the inner ring of the fixing ring (110), the ring washer (120) is provided with a plurality of through holes (130) along its circumference, an annular slot is provided on the outer side surface of the pipe (200) along the circumference of the pipe (200), the latch members penetrate through the through holes and extend into the corresponding annular slots, and a driving member for synchronously driving the latch members to extend and retract is also provided in the fixing cavity (250).

2. A heat preservation structure for a pipe joint according to claim 1, characterized in that: The latch member comprises a rack (220), which is slidably arranged in the fixed cavity (250) along the radial direction of the fixed cavity (250); a rotatable shaft is also arranged in the fixed cavity (250), and a gear (230) is arranged on the outer sleeve of the shaft, and the gear (230) is meshed with the rack (220), and the rotation of the shaft drives the gear (230) to rotate, so as to drive the rack (220) to extend and retract in the fixed cavity (250).

3. A heat preservation structure for a pipe joint according to claim 2, characterized in that: The driving member comprises a gear ring (240), the bottom wall of the gear ring (240) is slidably fitted with the corresponding inner wall of the fixed cavity (250), the gear ring (240) is meshed with the gear (230), and a slide rod (160) is provided on the gear ring (240) for driving the gear ring (240) to rotate; a slide groove (150) is provided on the outer surface of the fixed ring (110), the slide rod (160) can extend out of the slide groove (150), and the slide rod (160) slides along the slide groove (150) to drive the gear (230) to rotate.

4. A heat preservation structure for a pipe joint according to claim 3, characterized in that: The sliding rod (160) is provided with a dial cylinder (140) on its outer sleeve, and a limiting ring (500) is provided at the end of the sliding rod (160) extending into the dial cylinder (140), and a spring (510) is provided in the dial cylinder (140), and the spring (510) is sleeved outside the sliding rod (160); a plurality of insertion holes (170) are respectively provided at both ends of the sliding groove (150), and an insertion rod (180) which can be inserted into the corresponding insertion hole (170) is provided on the side of the dial cylinder (140) close to the fixing ring (110), and the spring (510) is used to drive the insertion rod (180) to extend into the insertion hole (170).

5. The heat preservation structure for a pipe joint according to claim 3, characterized in that: The heat preservation cavity (211) is filled with heat preservation material.

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