Anti-cracking electric hot melting sleeve

Abstract

The utility model discloses an anti-cracking electric hot melting sleeve, which relates to the technical field of electric hot melting sleeves and comprises an inner wall pipe, a main body unit, an upper connecting unit and a lower connecting unit, a main body unit is mounted on the outer side of the inner wall pipe; the main body unit comprises a fiber anti-cracking protection layer, a thermal insulation layer and an anti-corrosion layer, the outer side of the inner wall pipe is fixedly connected with the fiber anti-cracking protection layer, the outer side of the fiber anti-cracking protection layer is fixedly connected with the thermal insulation layer, and the outer side of the thermal insulation layer is fixedly connected with the anti-corrosion layer; the upper connecting unit is mounted on the inner wall pipe and the main body unit; according to the anti-cracking electric hot melting sleeve, the possibility of cracking under various conditions is prevented by conducting anti-freezing protection and abrasion-resistant protection on the electric hot melting sleeve, and the situation that the two ends are not prone to cracking when the two ends are connected and the angle is changed can be prevented through the connectors capable of freely moving at the two ends of the electric hot melting sleeve. And the cracking condition is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heat-melting sleeves, in particular to an anti-cracking electric heat-melting sleeve. Background Art

[0002] The electric hot melt sleeve is a kind of connecting pipe fitting that is made of PE sheet that is covered with a mesh, bent, and rolled, and then connected to the jacket pipe by electric hot melt. It is usually used to connect pipe fittings. The electric hot melt sleeve is equipped with a resistance wire, which is heated by electricity to melt the sleeve, so that the electric hot melt sleeve is connected to the pipe fitting. When connecting pipe fittings, the existing electric hot melt sleeve can only connect two pipes located on the same axis. If there is a certain angle or spacing between the pipes, the electric hot melt sleeve will bend. After a long time, the bent part of the electric hot melt sleeve is prone to cracking and damage, thereby reducing the sealing performance;

[0003] Among them, the prior art has an anti-cracking electric hot melt sleeve with an authorization announcement number of CN207421615U, which includes a first melt sleeve, a second melt sleeve, a connecting pipe, a first connecting part and a second connecting part, the connecting pipe includes a first end and a second end, the first melt sleeve is connected to the first end of the connecting pipe through the first connecting part, the second melt sleeve is connected to the second section of the connecting pipe through the second connecting part, the first connecting part and the second connecting part are connecting parts with the same structure, the first and second melt sleeves are melt sleeves with the same structure, the connecting part includes a spherical shell part and a matching part, the spherical shell part has a spherical cavity, the spherical cavity is connected to the melt sleeve, the matching part has an arc part, the arc part is connected to the connecting pipe, the arc part is matched with the spherical cavity, and the spherical shell part and the matching part rotate relatively;

[0004] In the prior art, due to the lack of anti-freeze protection and wear resistance protection, the electric hot melt sleeve is prone to cracking in these two situations. The movable angles at both ends of the electric hot melt sleeve are small, and the sealing of the movable connection is poor, which may cause cracking and leakage. For this reason, we propose an anti-cracking electric hot melt sleeve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an anti-cracking electric hot melt sleeve. The possibility of cracking in various situations can be prevented by providing anti-freeze protection and wear resistance to the electric hot melt sleeve. The freely movable connection ports at both ends of the electric hot melt sleeve can prevent the two ends from cracking when they are connected and the angle is changed, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-cracking electric hot melt sleeve, comprising an inner wall tube, a main body unit, an upper connecting unit and a lower connecting unit;

[0007] Inner wall tube: the main unit is installed on the outside;

[0008] Main body unit: comprising a fiber anti-cracking protective layer, a thermal insulation layer and an anti-corrosion layer, the outer side of the inner wall tube is fixedly connected with the fiber anti-cracking protective layer, the outer side of the fiber anti-cracking protective layer is fixedly connected with the thermal insulation layer, and the outer side of the thermal insulation layer is fixedly connected with the anti-corrosion layer;

[0009] Upper connecting unit: installed on the inner wall tube and the main unit;

[0010] Lower connecting unit: installed on the inner wall tube and the main unit.

[0011] The fiber anti-cracking protective layer is used to strengthen the protection of the inner wall pipe, and the thermal insulation layer is used to insulate the inner wall pipe and the fiber anti-cracking protective layer to prevent the pipe from becoming brittle and cracking when exposed to cold.

[0012] Furthermore, the upper connection unit includes an upper spherical connection sleeve, an upper spherical movable sleeve and an upper spherical protective sleeve. The upper end between the inner wall tube and the thermal insulation layer is fixedly connected to the lower end of the upper spherical connection sleeve. The inner side of the upper spherical connection sleeve is rotatably connected to the upper spherical movable sleeve. The outer side of the upper spherical movable sleeve is fixedly connected to the upper spherical protective sleeve. The inner side of the upper spherical protective sleeve is rotatably connected to the outer side of the upper spherical connection sleeve. The connection between the upper spherical connection sleeve and the upper spherical movable sleeve allows the angle of the upper end of the pipeline to change, thereby preventing cracking caused by the angle change, so that the pipeline can be freely connected. The upper spherical protective sleeve can protect the connection between the upper spherical movable sleeve and the upper spherical connection sleeve and enhance the sealing effect.

[0013] Furthermore, the upper connection unit further comprises a connection port protective sleeve, an annular heating wire mesh cylinder, a clamping groove and a hemispherical clamping ring, the outer upper end of the upper spherical protective sleeve is fixedly connected to the connection port protective sleeve, the outer upper end of the upper spherical movable sleeve is fixedly connected to the annular heating wire mesh cylinder, the inner upper end of the annular heating wire mesh cylinder is fixedly connected to the hemispherical clamping ring, and the upper end of the annular heating wire mesh cylinder is provided with two clamping grooves. The annular heating wire mesh cylinder is protected by the connection port protective sleeve, and the hemispherical clamping ring on the annular heating wire mesh cylinder is connected to the clamping device, thereby improving the sealing during connection, and the clamping groove facilitates connection.

[0014] Further, the lower connection unit comprises a lower spherical connection sleeve, a lower spherical movable sleeve and a lower spherical protective sleeve, the lower end between the inner wall tube and the thermal insulation layer is fixedly connected to the upper end of the lower spherical connection sleeve, the inner side of the lower spherical connection sleeve is rotatably connected to the lower spherical movable sleeve, the outer side of the lower spherical movable sleeve is fixedly connected to the lower spherical protective sleeve, and the inner side of the lower spherical protective sleeve is rotatably connected to the outer side of the lower spherical connection sleeve. Through the movable connection between the lower spherical connection sleeve and the lower spherical movable sleeve, the lower end of the electric hot melt sleeve can change its angle to prevent cracking caused by the angle change, and the lower spherical protective sleeve protects the connection and enhances the sealing effect.

[0015] Furthermore, the lower connection unit further comprises a rectangular clamping block and a hemispherical clamping groove, the lower end of the outer side of the lower spherical movable sleeve is provided with a hemispherical clamping groove, and the lower end of the outer side of the lower spherical movable sleeve is fixedly connected with a rectangular clamping block. The rectangular clamping block and the hemispherical clamping groove on the lower spherical movable sleeve make it possible to connect the same electric hot melt sleeve, and the corresponding connection between the hemispherical clamping groove, the hemispherical clamping ring clamping groove and the rectangular clamping block makes the connection tighter.

[0016] Furthermore, it also includes an anti-skid groove, wherein the middle part of the outer side of the anti-corrosion layer is provided with an anti-skid groove, so as to protect the pipeline from corrosion, thereby reducing the wear of the external pipeline.

[0017] Compared with the prior art, the beneficial effects of the utility model are: the anti-cracking electric hot melt sleeve has the following advantages:

[0018] 1. This anti-cracking electric hot melt sleeve prevents the possibility of cracking in various situations by providing anti-freeze protection and wear resistance to the electric hot melt sleeve, thereby reducing the cracking phenomenon of the melt sleeve caused by external environmental factors.

[0019] 2. The anti-cracking electric hot melt sleeve can prevent the two ends from cracking when they are connected or the angles are changed through the freely movable connection ports at both ends of the electric hot melt sleeve. The electric hot melt sleeve can be better used in different situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0023] Figure 4 For this utility model Figure 2A schematic diagram of the partially enlarged structure at B in the middle;

[0024] Figure 5 For this utility model Figure 2 Schematic diagram of the partial enlarged structure at point C in the middle.

[0025] In the figure: 1 inner wall tube, 2 anti-slip groove, 3 main unit, 31 fiber anti-cracking protective layer, 32 thermal insulation layer, 33 anti-corrosion layer, 4 upper connecting unit, 41 upper spherical connecting sleeve, 42 upper spherical movable sleeve, 43 upper spherical protective sleeve, 44 connecting port protective sleeve, 45 annular heating wire mesh cylinder, 46 clamping groove, 47 hemispherical clamping ring, 5 lower connecting unit, 51 lower spherical connecting sleeve, 52 lower spherical movable sleeve, 53 lower spherical protective sleeve, 54 rectangular clamping block, 55 hemispherical clamping groove. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-5 , This embodiment provides a technical solution for an anti-cracking electric hot melt sleeve: an anti-cracking electric hot melt sleeve, comprising an inner wall tube 1, a main body unit 3, an upper connecting unit 4 and a lower connecting unit 5;

[0028] Inner wall tube 1: main unit 3 is installed on the outside;

[0029] The main unit 3: comprises a fiber anti-cracking protective layer 31, a thermal insulation layer 32 and an anti-corrosion layer 33. The outer side of the inner wall tube 1 is fixedly connected with the fiber anti-cracking protective layer 31, the outer side of the fiber anti-cracking protective layer 31 is fixedly connected with the thermal insulation layer 32, and the outer side of the thermal insulation layer 32 is fixedly connected with the anti-corrosion layer 33; the fiber anti-cracking protective layer 31 is used to strengthen the protection of the inner wall tube 1, and the thermal insulation layer 32 is used to insulate the inner wall tube 1 and the fiber anti-cracking protective layer 31 to prevent the pipeline from becoming brittle and cracking when it encounters cold.

[0030] The upper connection unit 4 is installed on the inner wall tube 1 and the main unit 3; the upper connection unit 4 comprises an upper spherical connection sleeve 41, an upper spherical movable sleeve 42 and an upper spherical protective sleeve 43. The upper end between the inner wall tube 1 and the thermal insulation layer 32 is fixedly connected to the lower end of the upper spherical connection sleeve 41, the inner side of the upper spherical connection sleeve 41 is rotatably connected to the upper spherical movable sleeve 42, the outer side of the upper spherical movable sleeve 42 is fixedly connected to the upper spherical protective sleeve 43, and the inner side of the upper spherical protective sleeve 43 is rotatably connected to the outer side of the upper spherical connection sleeve 41. The connection between the upper spherical connection sleeve 41 and the upper spherical movable sleeve 42 allows the angle of the upper end of the pipeline to change, thereby preventing cracking caused by the angle change, so that the pipeline can be freely connected. The upper spherical protective sleeve 43 can protect the connection between the upper spherical movable sleeve 42 and the upper spherical connection sleeve 41 and enhance the sealing effect.

[0031] The upper connection unit 4 further comprises a connection port protective sleeve 44, an annular heating wire mesh cylinder 45, a clamping groove 46 and a hemispherical clamping ring 47. The connection port protective sleeve 44 is fixedly connected to the upper outer end of the upper spherical protective sleeve 43, the annular heating wire mesh cylinder 45 is fixedly connected to the upper outer end of the upper spherical movable sleeve 42, the hemispherical clamping ring 47 is fixedly connected to the upper inner end of the annular heating wire mesh cylinder 45, and two clamping grooves 46 are provided at the upper end of the annular heating wire mesh cylinder 45. The annular heating wire mesh cylinder 45 is protected by the connection port protective sleeve 44, and is connected to the clamping device by the hemispherical clamping ring 47 on the annular heating wire mesh cylinder 45, thereby improving the sealing during connection, and the clamping groove 46 facilitates connection.

[0032] The lower connection unit 5 is installed on the inner wall tube 1 and the main unit 3. The lower connection unit 5 includes a lower spherical connection sleeve 51, a lower spherical movable sleeve 52 and a lower spherical protective sleeve 53. The lower end between the inner wall tube 1 and the thermal insulation layer 32 is fixedly connected to the upper end of the lower spherical connection sleeve 51. The inner side of the lower spherical connection sleeve 51 is rotatably connected to the lower spherical movable sleeve 52. The outer side of the lower spherical movable sleeve 52 is fixedly connected to the lower spherical protective sleeve 53. The inner side of the lower spherical protective sleeve 53 is rotatably connected to the outer side of the lower spherical connection sleeve 51. Through the movable connection between the lower spherical connection sleeve 51 and the lower spherical movable sleeve 52, the lower end of the electric hot melt sleeve can change its angle to prevent cracking caused by the angle change. The lower spherical protective sleeve 53 protects the connection and enhances the sealing effect.

[0033] The lower connection unit 5 further comprises a rectangular clamping block 54 and a hemispherical clamping groove 55. The hemispherical clamping groove 55 is provided at the lower outer end of the lower spherical movable sleeve 52, and the rectangular clamping block 54 is fixedly connected to the lower outer end of the lower spherical movable sleeve 52. The rectangular clamping block 54 and the hemispherical clamping groove 55 on the lower spherical movable sleeve 52 make it possible to connect the same electric hot melt sleeve, and the corresponding connection between the hemispherical clamping groove 55 and the clamping groove 46 of the hemispherical clamping ring 47 and the rectangular clamping block 54 makes the connection tighter.

[0034] It also includes an anti-skid groove 2, and an anti-skid groove 2 is provided in the middle of the outer side of the anti-corrosion layer 33. The anti-skid groove 2 is used to protect the pipeline from corrosion, thereby reducing the wear of the external pipeline.

[0035] The working principle of the anti-cracking electric hot melt sleeve provided by the utility model is as follows: the inner wall tube 1 is strengthened with the fiber anti-cracking protective layer 31, and the inner wall tube 1 and the fiber anti-cracking protective layer 31 are insulated with the thermal insulation layer 32 to prevent the pipe from becoming brittle and cracking when it is cold. The upper end of the pipe can change its angle by connecting the upper spherical connecting sleeve 41 with the upper spherical movable sleeve 42, thereby preventing cracking caused by the angle change, so that the pipe can be freely connected, and the upper spherical protective sleeve 43 can protect the connection between the upper spherical movable sleeve 42 and the upper spherical connecting sleeve 41 and enhance the sealing effect. The annular heating wire mesh cylinder 45 is protected by the connecting port protective sleeve 44, and the hemispherical clamping ring 47 on the annular heating wire mesh cylinder 45 is connected to the clamping device, thereby improving the sealing during connection, and the clamping groove 46 facilitates connection. Through the movable connection between the lower spherical connection sleeve 51 and the lower spherical movable sleeve 52, the angle of the lower end of the electric hot melt sleeve can be changed to prevent cracking caused by the angle change. The lower spherical protective sleeve 53 protects the connection and enhances the sealing effect. The rectangular clamping block 54 and the hemispherical clamping groove 55 on the lower spherical movable sleeve 52 make it easy to connect the same electric hot melt sleeve. The corresponding connection between the hemispherical clamping groove 55 and the hemispherical clamping ring 47 clamping groove 46 and the rectangular clamping block 54 makes the connection tighter. The anti-slip groove 2 protects the pipeline from corrosion, thereby reducing the wear of the external pipeline.

[0036] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An anti-cracking electric hot melt sleeve, characterized in that: It comprises an inner wall tube (1), a main body unit (3), an upper connecting unit (4) and a lower connecting unit (5); Inner wall tube (1): a main body unit (3) is installed on the outside; The main body unit (3) comprises a fiber anti-cracking protective layer (31), a thermal insulation layer (32) and an anti-corrosion layer (33); the outer side of the inner wall tube (1) is fixedly connected to the fiber anti-cracking protective layer (31); the outer side of the fiber anti-cracking protective layer (31) is fixedly connected to the thermal insulation layer (32); and the outer side of the thermal insulation layer (32) is fixedly connected to the anti-corrosion layer (33); Upper connecting unit (4): installed on the inner wall tube (1) and the main body unit (3); Lower connecting unit (5): installed on the inner wall tube (1) and the main body unit (3).

2. The anti-cracking electric hot melt sleeve according to claim 1, characterized in that: The upper connection unit (4) comprises an upper spherical connection sleeve (41), an upper spherical movable sleeve (42) and an upper spherical protective sleeve (43); the upper end between the inner wall tube (1) and the thermal insulation layer (32) is fixedly connected to the lower end of the upper spherical connection sleeve (41); the inner side of the upper spherical connection sleeve (41) is rotatably connected to the upper spherical movable sleeve (42); the outer side of the upper spherical movable sleeve (42) is fixedly connected to the upper spherical protective sleeve (43); and the inner side of the upper spherical protective sleeve (43) is rotatably connected to the outer side of the upper spherical connection sleeve (41).

3. The anti-cracking electric hot melt sleeve according to claim 2, characterized in that: The upper connection unit (4) further comprises a connection port protection sleeve (44), an annular heating wire mesh cylinder (45), a snap-in groove (46) and a hemispherical snap-in ring (47); the outer upper end of the upper spherical protection sleeve (43) is fixedly connected to the connection port protection sleeve (44); the outer upper end of the upper spherical movable sleeve (42) is fixedly connected to the annular heating wire mesh cylinder (45); the inner upper end of the annular heating wire mesh cylinder (45) is fixedly connected to the hemispherical snap-in ring (47); and the upper end of the annular heating wire mesh cylinder (45) is provided with two snap-in grooves (46).

4. The anti-cracking electric hot melt sleeve according to claim 1, characterized in that: The lower connection unit (5) comprises a lower spherical connection sleeve (51), a lower spherical movable sleeve (52) and a lower spherical protective sleeve (53); the lower end between the inner wall tube (1) and the thermal insulation layer (32) is fixedly connected to the upper end of the lower spherical connection sleeve (51); the inner side of the lower spherical connection sleeve (51) is rotatably connected to the lower spherical movable sleeve (52); the outer side of the lower spherical movable sleeve (52) is fixedly connected to the lower spherical protective sleeve (53); and the inner side of the lower spherical protective sleeve (53) is rotatably connected to the outer side of the lower spherical connection sleeve (51).

5. The anti-cracking electric hot melt sleeve according to claim 4, characterized in that: The lower connection unit (5) further comprises a rectangular snap-fit ​​block (54) and a hemispherical snap-fit ​​groove (55); the hemispherical snap-fit ​​groove (55) is provided at the lower outer end of the lower spherical movable sleeve (52); and the rectangular snap-fit ​​block (54) is fixedly connected to the lower outer end of the lower spherical movable sleeve (52).

6. The anti-cracking electric hot melt sleeve according to claim 1, characterized in that: It also includes an anti-skid groove (2), and the anti-skid groove (2) is opened in the middle of the outer side of the anti-corrosion layer (33).

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