A spray-wrapped, directly buried thermal insulation pipe heating connection device

Abstract

The present invention provides a spray-wrapped, directly buried insulated pipe heating connection device, comprising two fixing cards and a heating component placed between the two fixing cards, the two fixing cards can be close to or away from each other, the heating component comprises a heating plate capable of heating the end of the insulated pipe, the heating plate comprises a first plate body and a second plate body arranged opposite to each other, and the two plates can be close to or away from each other, and when the two plates are away from each other to a limit distance, the two plates are respectively placed outside the space range surrounded by the fixing cards. The present invention adopts a method of two plates forming a heating plate, when it is necessary to heat the end of the pipe, the two plates are spliced ​​together so that the heating plate is placed between the two fixing cards, after heating, the two plates are opened so that the two fixing cards are opposite to each other, so as to facilitate the connection of the insulated pipe, and the heating plate is integrated between the two fixing cards so as to facilitate single-person operation and improve work efficiency.

Description

Technical Field

[0001] The invention belongs to the field of pipeline laying construction, and in particular relates to a spray-wrapped, directly buried thermal insulation pipe heating connection device. Background Art

[0002] During the laying of the heating insulation pipe, multiple pipe ends need to be connected. During the connection process, the pipe ends are usually heated to melt the pipe ends, and then the two pipe sections are butt-jointed to complete the connection;

[0003] The existing connection equipment usually uses a fixing card to fix the relative parts of the two pipes so that the pipes are concentric, and uses an electric heating plate to heat the ends of the two pipes at the same time. Then, the electric heating plate is quickly removed, and the two pipes are brought close to each other, and a certain external force is applied to the pipes to make the two pipes reliably connected. In this way, in order to quickly move the electric heating plate and bring the two pipes close together, two people are usually required to work together, that is, one person removes the electric heating plate and the other person completes the pipe connection work, resulting in labor waste and reduced construction efficiency. Summary of the invention

[0004] In view of this, the present invention aims to provide a spray-wrapped direct-buried thermal insulation pipe heating connection device to quickly.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A spray-wrapped, directly buried insulated pipe heating connection device comprises two fixing cards and a heating assembly placed between the two fixing cards, wherein the two fixing cards can be close to or far away from each other, and the heating assembly comprises a heating plate capable of heating the end of the insulated pipe, wherein the heating plate comprises a first plate body and a second plate body arranged opposite to each other, and the two plates can be close to or far away from each other, and when the two plates are far away from each other to a limit distance, the two plates are respectively placed outside the space surrounded by the fixing cards.

[0007] Furthermore, the connection device also includes a heating sliding seat, the heating component is fixed on the heating sliding seat, and the heating component can move along the axial direction of the insulation pipe.

[0008] Furthermore, the connecting device also includes a base, two fixing cards are respectively a reference fixing card fixed to the base and a moving fixing card slidably connected to the base, sliding rods are provided on both sides of the base, the heating sliding seat is slidably connected to the sliding rods, and the heating sliding seat is provided with a compression spring on the side facing the moving fixing card, the compression spring is sleeved on the sliding rod, and the end of the compression spring is tightly against the heating sliding seat.

[0009] Furthermore, a hinged ear is respectively provided at both ends of the heating sliding seat, and an insulation frame is respectively provided at the outer edges of the first sheet and the second sheet, and a connecting piece extends outward from the bottom of the insulation frame. The hinged ear is connected to the first sheet and the second sheet through the connecting piece, and the two hinged ears are respectively placed on both sides of the heating sheet as a whole.

[0010] Furthermore, a connecting ear is provided on the outer side of the hinge ear, a through hole is opened on the connecting plate, and two ends of a tension spring are respectively hung on the connecting ear and the through hole.

[0011] Furthermore, a first connecting component is provided at the top of the insulation frame, and the first connecting component includes a first connecting column rotatably connected to the top of one of the insulation frames, and a first connecting block is fixedly provided at the top of the other insulation frame. A first notch is opened on the first connecting block, and the first connecting column can be inserted into the first notch. A pressing plate is sleeved on the first connecting column, and when the first connecting column is inserted into the first notch, the pressing plate can be tightly pressed against the first connecting block.

[0012] Furthermore, a first nut is threadedly connected to the first connecting column, and an adjusting spring is provided on the connecting column, and two ends of the adjusting spring are respectively tightly pressed against the pressing plate and the first nut.

[0013] Furthermore, a screw rod is rotatably connected to the top of the base, and the screw rod is threadedly connected to the bottom of the motion fixing card.

[0014] Furthermore, the screw rod is disposed on one side of the motion fixing card, and a guide rod is disposed on the other side of the motion fixing card, and the motion fixing card is slidably connected to the guide rod.

[0015] Furthermore, each fixing card includes a fixed part and a movable part corresponding to the fixed part, the fixed part and the movable part are combined to form a ring, and second connecting components are respectively provided on both sides of the fixed part and the movable part, the second connecting component includes a second connecting column rotatably connected to the end of the fixed part, and a second connecting block extends outward from the end of the movable part, and a second notch is opened on the second connecting block, and the second connecting column can be inserted into the second notch, and a nut is threaded on the second connecting column, and the nut can be pressed tightly on the second connecting block.

[0016] Compared with the prior art, the spray-wrapped direct-buried thermal insulation pipe heating connection device described in the present invention has the following advantages:

[0017] The present invention adopts a method of two sheets forming a heating sheet. When the end of the pipe needs to be heated, the two sheets are assembled so that the heating sheet is placed between two fixing clips. After heating, the two sheets are opened so that the two fixing clips are opposite to each other, so as to facilitate the connection of the insulation pipe. The heating sheet is integrated between the two fixing clips, so as to facilitate single-person operation and improve work efficiency.

[0018] A spring is arranged on the side of the heating movable seat close to the moving fixing card, so that the initial position of the heating plate is close to the side of the reference fixing card. When the reference fixing card fixes the pipeline, the heating plate can apply pressure to the end of the pipeline through the spring, so that the end of the pipeline and the heating plate are closely fitted;

[0019] A tension spring is arranged outside the first sheet and the second sheet, so that when the connection between the two sheets is opened, the tension spring can separate the two sheets. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 is an overall schematic diagram of the connection device;

[0022] Figure 2 It is a schematic diagram of the overall structure of the heating component;

[0023] Figure 3 is a schematic diagram of the structure of the first connection component;

[0024] Figure 4 It is a schematic diagram of the structure of the motion fixing card;

[0025] Figure 5 Schematic diagram of the base plate structure.

[0026] Description of reference numerals:

[0027] 1-reference fixing card; 11-second connecting component; 111-second connecting block; 1111-second notch; 112-second connecting column; 113-second nut; 12-fixed part; 13-movable part; 2-motion fixing card; 3-base; 31-sliding rod; 32-compression spring; 33-screw; 34-guide rod; 4-heating component; 41-heating plate; 411-first sheet; 412-second sheet; 42-insulating frame; 421-connecting plate; 43-first connecting component; 431-first connecting block; 4311-first notch; 432-first connecting column; 433-pressing plate; 434-adjusting spring; 435-first nut; 44-heating sliding seat; 441-hinge ear; 442-connecting ear; 443-tension spring. DETAILED DESCRIPTION

[0028] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0031] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0032] The spray-wrapped, directly buried thermal insulation pipe heating connection device of the present invention comprises a base plate, two fixing cards placed above the base plate, and a heating component 4 placed between the two fixing cards, wherein the two fixing cards can approach or move away from each other. Specifically, the two fixing cards are a reference fixing card 1 fixed to the base plate and a moving fixing card 2 slidably connected to the base plate. The heating component 4 is placed between the two fixing cards and can approach or move away from the reference fixing card 1. Specifically, the heating component 4 comprises a heating sliding seat 44, and a sliding rod 31 is fixedly connected to both sides of the middle part above the base plate, and the two sliding rods 31 pass through the two ends of the heating sliding seat 44 respectively. 4 can slide on the sliding rod 31, and the sliding rod 31 is sleeved with a compression spring 32, and the compression spring 32 is placed on the side of the heating sliding seat 44 close to the moving fixing card 2. In this embodiment, one end of the compression spring 32 abuts on the heating sliding seat 44, and the other end abuts on the supporting frame of the sliding rod 31, so that in a natural state, the compression spring 32 fixes the heating component 4 in an extreme state close to the reference fixing card 1. During work, a heat preservation pipe to be processed is passed through the reference fixing card 1, and the end of the heat preservation pipe is tightly abutted against the heating component 4, and the heating component 4 is moved toward the moving fixing card 2, so that the heat preservation pipe and the heating component 4 are fitted, so that the end of the heat preservation pipe is fully heated.

[0033] The heating assembly 4 also includes a heating plate 41 placed above the heating sliding seat 44. When the insulation pipe to be processed is inserted into the fixing card, the end of the insulation pipe can be tightly against the heating plate 41, and the insulation pipe is heated by the heating plate 41. The heating plate 41 includes a first plate body 411 and a second plate body 412. In the present embodiment, the two plates are both semicircular, and the two plates can be spliced ​​together to form a circular heating plate 41 as a whole, and the outer edges of the two plates are respectively fixed with insulation frames 42. The insulation frames 42 are provided with a first connecting component 43. The first connecting component 43 includes a first connecting column 432 rotatably connected to the top of one of the insulation frames 42, and a first connecting block 431 is fixed to the top of the other insulation frame 42. The first connecting block 431 is provided with a first notch 4311, and the first connecting column 432 can be inserted into the first notch 4311. A pressing piece 433 is sleeved on the first connecting column 432. When the first connecting column 432 is inserted into the first notch 4311, the pressing piece 433 can be tightly pressed against the first connecting block 431. Specifically, a first nut 435 is screwed on the first connecting column 432. An adjusting spring 434 is provided on the connecting column. The two ends of the adjusting spring 434 are respectively tightly pressed against the pressing piece 433 and the first nut 435. During operation, the pressure of the adjusting spring 434 on the pressing piece 433 is controlled by adjusting the first nut 435 when connecting. The two insulation frames 42 are connected into a whole by using the pressing piece 433. The edge of the first connecting block 431 is rounded, and when the first connecting column 432 is inserted into the first notch 4311, the pressing piece 433 can be pressed against the end face of the first connecting block 431 along the rounded corner to achieve quick connection of the two insulation frames 42.

[0034] During operation, the first sheet 411 and the second sheet 412 can be close to or away from each other. Specifically, when the ends of the two pipes need to be heated, the two sheets are close to each other. When the heating is completed and the two pipes need to be connected, the two sheets are away from each other to the limit distance. The two sheets are respectively placed outside the space surrounded by the fixing card to avoid the space required for the pipe connection. In this embodiment, a hinge ear 441 is respectively provided at both ends of the heating sliding seat 44, and a connecting piece extends outward from the bottom of the insulation frame 42. The hinge ear 441 is connected to the first sheet 411 and the second sheet 412 through the connecting piece, and the two hinges The ears 441 are respectively placed on both sides of the heating plate 41 as a whole. When the two sheets are separated, the sheets can rotate around the hinge shafts on the two hinged ears 441. A connecting ear 442 is also provided on the outer side of the hinged ear 441. A through hole is opened on the connecting sheet. The two ends of a tension spring 443 are respectively hung with the connecting ear 442 and the through hole. During work, when the operator unfastens the first connecting component 43 on the top of the connecting frame, the two sheets are respectively rotated to both sides under the action of the tension spring 443, so that the two sheets are separated from each other. Afterwards, under the action of the tension spring 443 and the gravity of the two sheets themselves, the two sheets are separated to the farthest position, and the space for pipeline connection is controlled.

[0035] A screw rod 33 is also rotatably connected above the base 3, and the screw rod 33 is screwed to the bottom of the moving fixed card 2. Specifically, the screw rod 33 is placed on one side of the moving fixed card 2, and a guide rod 34 is provided on the other side of the moving fixed card 2. The moving fixed card 2 is slidably connected to the guide rod 34, and the screw rod 33 and the guide rod 34 are used to support the fixed card.

[0036] The motion fixing card 2 and the reference fixing card 1 respectively include a fixing part 12 and a movable part 13 corresponding to the fixing part 12, the fixing part 12 and the movable part 13 are combined to form a ring, and second connecting components 11 are respectively provided on both sides of the fixing part 12 and the movable part 13, the second connecting component 11 includes a second connecting column 112 rotatably connected to the end of the fixing part 12, and a second connecting block 111 extends outward from the end of the movable part 13, the second connecting block 111 is provided with a second notch 1111, the second connecting column 112 can be stuck in the second notch 1111, the second connecting column 112 is screwed with a second nut 113, and the second nut 113 can be pressed tightly on the second connecting block 111.

[0037] The spray-wrapped, directly buried insulated pipe heating and connecting device described in the present invention, during operation, first connects the first sheet 411 and the second sheet 412 into a whole, then uses the reference fixing card 1 to fix the end of an insulated pipe to be processed, and the insulated pipe is tightly against the heating plate 41, so that the heating plate 41 is displaced, and then uses the moving fixing card 2 to fix the end of another insulated pipe to be processed, and rotates the screw 33 to make the moving fixing card 2 move forward until the end of the insulated pipe is tightly against the heating plate 41. When the heating is completed, the operator can lift the first connecting column 432 to separate the two sheets, and then rotate the screw 33 to make the moving fixing card 2 move toward the reference fixing card 1, and continuously apply external force to the pipe to make the two pipes firmly connected.

[0038] Those skilled in the art should know that before connecting the pipes, the ends of the pipes need to be wiped, cut, etc., and the two fixing clips are concentrically arranged.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spray-wrapped, directly buried thermal insulation pipe heating connection device, characterized in that: It comprises two fixing cards and a heating assembly disposed between the two fixing cards, the two fixing cards can be close to or away from each other, the heating assembly comprises a heating plate capable of heating the end of the insulation pipe, the heating plate comprises a first plate body and a second plate body disposed opposite to each other, the two plates can be close to or away from each other, and when the two plates are away from each other to a limit distance, the two plates are respectively placed outside the space range surrounded by the fixing cards; A heating sliding seat, the heating component is fixed on the heating sliding seat, and the heating component can move along the axial direction of the insulation pipe; A hinged ear is provided at each end of the heating sliding seat, and a heat insulation frame is provided at the outer edge of the first sheet and the second sheet respectively, and a connecting piece extends outward from the bottom of the heat insulation frame, and the hinged ear is connected to the first sheet and the second sheet through the connecting piece, and the two hinged ears are respectively placed on both sides of the heating sheet as a whole; A connecting ear is also provided on the outer side of the hinge ear, a through hole is opened on the connecting plate, and two ends of a tension spring are respectively connected to the connecting ear and the through hole; A first connecting component is provided at the top of the insulation frame, and the first connecting component includes a first connecting column rotatably connected to the top of one of the insulation frames, and a first connecting block is fixedly provided at the top of the other insulation frame. A first notch is opened on the first connecting block, and the first connecting column can be inserted into the first notch. A pressing piece is sleeved on the first connecting column, and when the first connecting column is inserted into the first notch, the pressing piece can be tightly pressed against the first connecting block.

2. A spray-wrapped, directly buried thermal insulation pipe heating connection device according to claim 1, characterized in that: It also includes a base, two fixing cards respectively comprising a reference fixing card fixed to the base and a moving fixing card slidably connected to the base, sliding rods are arranged on both sides of the base, the heating sliding seat is slidably connected to the sliding rods, and the heating sliding seat is provided with a compression spring on the side facing the moving fixing card, the compression spring is sleeved on the sliding rod, and the end portion is tightly pressed against the heating sliding seat.

3. The spray-wrapped direct-buried thermal insulation pipe heating connection device according to claim 1 is characterized in that: A first nut is threadedly connected to the first connecting column. An adjusting spring is arranged on the connecting column. Two ends of the adjusting spring are respectively tightly pressed against the pressing sheet and the first nut.

4. A spray-wrapped, directly buried thermal insulation pipe heating connection device according to claim 2, characterized in that: A screw rod is also rotatably connected above the base, and the screw rod is screwed to the bottom of the motion fixing card.

5. A spray-wrapped, directly buried thermal insulation pipe heating connection device according to claim 4, characterized in that: The screw rod is arranged on one side of the motion fixing card, and a guide rod is arranged on the other side of the motion fixing card, and the motion fixing card is slidably connected with the guide rod.

6. The spray-wrapped, directly buried thermal insulation pipe heating connection device according to claim 1 is characterized in that: Each fixing card includes a fixing part and a movable part corresponding to the fixing part, the fixing part and the movable part are combined to form a ring, and second connecting components are respectively provided on both sides of the fixing part and the movable part, the second connecting component includes a second connecting column rotatably connected to the end of the fixing part, and a second connecting block extends outward from the end of the movable part, a second notch is opened on the second connecting block, the second connecting column can be inserted into the second notch, a nut is threaded on the second connecting column, and the nut can be pressed tightly on the second connecting block.

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