Self-temperature-limiting electric tracing band assembly

Abstract

The utility model discloses a self-limiting temperature electric tracing band assembly, which comprises an electric tracing band body, a shell I, a shell II and a fixing piece, a first cavity is arranged in the shell I, a first opening for the electric tracing band body to enter and exit from the first cavity is further arranged on the side wall of the shell I, a second cavity is arranged in the shell II, and a second opening for the electric tracing band body to enter and exit from the second cavity is further arranged in the shell II. The side wall of the second shell is provided with a second opening for the first shell to enter and exit from the second cavity, and the fixing piece is used for detachably connecting the first shell and the second shell. According to the self-temperature-limiting electric tracing band assembly provided by the utility model, the first shell and the second shell are detachably connected, so that when the tail end of the electric tracing band body needs to be additionally processed, the tail end of the electric tracing band body, the first shell and the second shell which are glued together can be separated, and the second shell can be repeatedly used; the replacement and maintenance cost is reduced, and besides relatively fixing the shell I and the shell II, the arranged screw rod can also clamp and fix the electric tracing band body.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric heat tracing band technical field especially relates to a self temperature limiting electric heat tracing band. BACKGROUND

[0002] The heat tracing band is composed of conductive polymer, two parallel metal wires and insulation sheath. The conductive polymer has high positive temperature coefficient characteristic and is connected in parallel with each other. The output power can be automatically adjusted according to the temperature change of the heated system, and the temperature of heating can be automatically limited. The heat tracing band can be arbitrarily shortened or lengthened within a certain range, and can be overlapped multiple times without high-temperature hot spots and burning.

[0003] The tail end processing of the electric heat tracing band is an important link to ensure the safe operation of the electric heat tracing band. The electric heat tracing band is usually sealed by using a junction box. In order to improve the sealing performance, silica gel can be injected into the junction box. However, when the junction box needs to be replaced or the electric heat tracing band needs to be connected with another electric heat tracing band for extension, the junction box and the tail end of the electric heat tracing band with injected silica gel can only be cut off as a whole, which is high in replacement cost. UTILITY MODEL CONTENTS

[0004] To solve the technical problems in the background art, the utility model provides a self temperature limiting electric heat tracing band assembly.

[0005] The utility model provides a self temperature limiting electric heat tracing band assembly, which comprises an electric heat tracing band body, a shell one, a shell two and a fixing part. A first cavity is formed in the shell one, and a first opening for the electric heat tracing band body to enter and exit the first cavity is formed in the side wall of the shell one. A second cavity is formed in the shell two, and a second opening for the shell one to enter and exit the second cavity is formed in the side wall of the shell two. The fixing part is used for detachably connecting the shell one and the shell two.

[0006] Preferably, the fixing part is a screw rod, a threaded hole is formed in the shell two and is adapted to be screwed with the screw rod in the vertical direction, and the bottom end of the screw rod can be screwed into the movement path of the shell one entering and exiting the shell two and abuts against the outer wall of the shell one in the horizontal direction.

[0007] Preferably, the length of the shell one is greater than the sum of the length of the second cavity and the thickness of the second opening.

[0008] Preferably, the two screw rods are symmetrically arranged and can be close to each other to clamp the electric heat tracing band body.

[0009] Preferably, the electric heat tracing band body is in clearance fit with the first cavity, the top wall and the bottom wall of the shell one each have a plurality of protrusions, and the protrusions on the same bottom wall or top wall are sequentially and spacedly distributed.

[0010] Preferably, the bottom end of the screw rod is conical.

[0011] The self-limiting temperature electric heat tracing band assembly disclosed by the utility model, since the shell one and the shell two are detachably connected, when the tail end of the electric heat tracing band body needs to be treated, the tail end of the electric heat tracing band body which has been cemented together, the shell one and the shell two can be separated, the shell two can be repeatedly used, the cost of replacement and maintenance is reduced, in addition, the screw rod which is additionally arranged can clamp and fix the electric heat tracing band body in addition to being capable of relatively fixing the shell one and the shell two, so that the electric heat tracing band body is prevented from being separated from the first chamber under the action of external force in the process of waiting for the glue to solidify, and the sealing treatment process of the tail end of the electric heat tracing band body is affected. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The utility model discloses a kind of self-limiting temperature electric heat tracing band assembly's overall structure schematic diagram;

[0013] Figure 2 For Figure 1 The structure section schematic diagram of A in. DETAILED DESCRIPTION

[0014] With reference to Figures 1-2 The utility model discloses a kind of self-limiting temperature electric heat tracing band assembly, comprising: electric heat tracing band body 1, shell one 2, shell two 3, fixed part 4, first chamber 21 is set in shell one 2, and still be set with the first opening for electric heat tracing band body 1 to go in and out first chamber 21 on the lateral wall of shell one 2, second chamber 31 is set in shell two 3, and second opening for shell one 2 to go in and out second chamber 31 is set on the lateral wall of shell two 3, fixed part 4 is used for detachably connecting shell one 2 and shell two 3.

[0015] The self-limiting temperature electric heat tracing band assembly disclosed by the utility model, when assembling, the tail end of electric heat tracing band body 1 is inserted into the first chamber 21 on shell one 2 through the first opening, then fixed part 4 is used for fixedly connecting shell one 2 and shell two 3, glue is injected into first chamber 21, and the tail end of electric heat tracing band body 1 is sealed and handled while being fixed with shell one 2.

[0016] In the above embodiment, fixed part 4 uses but is not limited to screw rod, screw thread hole that is adapted to screw in vertical direction is set on shell two 3, and the bottom end of screw rod can be screwed to the movement path of shell one 2 in and out shell two 3 and abuts against the outer wall of shell one 2 in horizontal direction, when shell one 2 enters into second chamber 31, screw rod is rotated, the bottom end of screw rod enters the movement path of shell one 2 and abuts against it, so that shell one 2 and shell two 3 are relatively fixed, with reference to Figure 2When the electric heat tracing pipe body 1 needs to be connected with another electric heat tracing pipe body 1, the tail end part adhered with the glue is cut off before the connection, and the shell two 3 can be separated from the shell one 2 for repeated use, thereby reducing the replacement and maintenance cost of the assembly.

[0017] In the above embodiment, the length of the shell one 2 is greater than the sum of the length of the second chamber 31 and the thickness of the second opening.

[0018] It needs to be further explained that during the process of injecting the glue into the first chamber 21 and waiting for the glue to solidify, the electric heat tracing pipe body 1 can be affected by external force from the first chamber 21, in order to avoid the above-mentioned situation, the two screw rods are symmetrically arranged and can be close to each other to form clamping to the electric heat tracing pipe body 1, when the two screw rods are close to each other, in addition to being able to be fixed relative to the shell one 2 and the shell two 3, the electric heat tracing pipe body 1 can also be fixed.

[0019] In order to make the distance between the electric heat tracing pipe body 1 and the inner wall of the first chamber 21 uniform, the electric heat tracing pipe body 1 and the first chamber 21 are gap-fitted, the shell one 2 has a plurality of protrusions on the top wall and the bottom wall, and the plurality of protrusions on the same bottom wall or top wall are sequentially and spacedly distributed.

[0020] The bottom end of the screw rod is conical.

[0021] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A self-limiting temperature electric heat tracing band assembly, characterized by, The utility model relates to an electric heat tracing band body (1), a shell one (2), a shell two (3), a fixing piece (4), the shell one (2) is set with first chamber (21) in, and the side wall of shell one (2) is also set with first opening for the first chamber (21) of electric heat tracing band body (1) in and out, the shell two (3) is set with second chamber (31) in, and the side wall of shell two (3) is set with second opening for the second chamber (31) of shell one (2) in and out, and the fixing piece (4) is used for the detachable connection shell one (2) with shell two (3). The fixing piece (4) is a screw rod, the shell two (3) is set with the threaded hole of the screw rod in the vertical direction on the adaptation rotation joint, and the bottom end of screw rod can rotate to the movement path of shell one (2) in and out shell two (3) and with the outer wall of shell one (2) in the horizontal direction and leans against.

2. The self-limiting temperature electrical trace tape assembly of claim 1, wherein, The length of shell one (2) is greater than the sum of the length of second chamber (31) and the thickness of second opening.

3. The self-limiting temperature electrical trace tape assembly of claim 2, wherein, The screw rod is two, and two screw rods are symmetrically arranged and can be close to each other to form the clamping of electric heat tracing band body (1).

4. The self-limiting temperature electrical trace tape assembly of claim 2, wherein, Electric heat tracing band body (1) and first chamber (21) gap fit, the top wall and bottom wall of shell one (2) all have several protrusions, and several protrusions on the same bottom wall or top wall are sequentially spaced distribution.

5. The self-limiting temperature electrical heat tracing band assembly of claim 1, wherein, The bottom end of screw rod is conical.

6. The self-limiting temperature electrical trace tape assembly of claim 4, wherein, ​

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