An explosion-proof flexible connecting pipe with carbon steel joint

Abstract

The utility model discloses an explosion-proof flexible connecting pipe of a carbon steel joint, comprising a connecting pipe body, a nut and an adapter, wherein the inner end of the connecting pipe body is fixedly connected with a heat insulation layer, and the outer side of the heat insulation layer is fixedly connected with a heat dissipation layer, nuts are installed at both left and right ends of the connecting pipe body, and a storage groove is provided at the inner left end of the nut, and a connecting groove is provided at the inner right end of the nut, a gasket is slidably connected inside the storage groove, and a carbon steel joint body is installed inside the storage groove, a threaded pipe is fixedly connected at the right end of the carbon steel joint body, and a threaded connecting pipe is fixedly connected at the left end of the carbon steel joint body, and the connecting pipe body is composed of an explosion-proof pipe, a pipe head and a vulcanized rubber protective layer. The explosion-proof flexible connecting pipe of the carbon steel joint is convenient for preventing the outer layer of the explosion-proof flexible connecting pipe from being corroded, and is convenient for heat dissipation of the explosion-proof flexible connecting pipe, so as to avoid danger caused by excessive temperature.

Description

Technical Field

[0001] The utility model relates to the technical field related to electrical connectors, in particular to an explosion-proof flexible connecting pipe of a carbon steel joint. Background Art

[0002] Explosion-proof flexible connecting pipes are the inlet and outlet connectors of explosion-proof electrical equipment. They are used in scenarios where bending is required and are suitable for combustible dust environments and explosive mixture environments. Explosion-proof flexible connecting pipes include a bendable metal hose and a flexible joint threadedly installed at both ends of the metal hose. Since the explosion-proof environment has high requirements for the explosion-proof performance of the flexible joint, the cable needs to form a strict sealed connection with the flexible joint to prevent external dust and combustible gas from entering between the cable and the flexible joint.

[0003] The Chinese utility model patent with reference authorization announcement number CN209881277U discloses an explosion-proof flexible connecting pipe of a carbon steel joint, which relates to the technical field related to electrical connectors, including a connecting pipe body, the left and right ends of which are respectively connected with a left-turn joint and a right-turn joint; the left-turn joint is integrally formed with the left nut, the left end of the left nut is connected to the left external joint, a slot is provided at the end of the left nut connected to the left external joint, a gasket is embedded in the slot, and a protrusion is provided in the left nut extending from the notch of the slot to the axial direction of the left nut; an annular groove is provided on the right end face of the left external joint, the left side of the sealing rubber ring is bonded to the annular groove, the right side of the sealing rubber ring extends out of the annular groove and abuts against the protrusion, and the protrusion can squeeze the sealing rubber ring to deform in the axial direction of the left nut; the right-turn joint is integrally formed with the right nut, and the right end of the right nut is threadedly connected to the right external joint; the outer walls of the left and right ends of the connecting pipe body are both covered with rubber skins and carbon steel sleeves, and the carbon steel sleeves are pressed tightly on the rubber skins. The utility model has good explosion-proof performance and high safety in use;

[0004] However, in the prior art, there is a problem that the outer side of the explosion-proof flexible connecting pipe will be affected by the environment or contact objects, which makes it difficult to prevent the outer layer of the explosion-proof flexible inner pipe from being corroded, and the temperature inside the connecting pipe will change, which makes it difficult to dissipate heat for the explosion-proof flexible connecting pipe. For this reason, we propose an explosion-proof flexible connecting pipe with a carbon steel joint to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof flexible connecting pipe with a carbon steel joint, so as to solve the problems in the prior art proposed in the above background technology that the outer side of the explosion-proof flexible connecting pipe will be affected by the environment or contact objects, making it inconvenient to prevent the outer layer of the explosion-proof flexible inner pipe from being corroded, and the temperature inside the connecting pipe will have temperature changes, making it inconvenient to dissipate heat for the explosion-proof flexible connecting pipe.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof flexible connecting pipe of a carbon steel joint, comprising a connecting pipe body, a nut and an adapter, wherein the inner end of the connecting pipe body is fixedly connected to a heat insulation layer, and the outer side of the heat insulation layer is fixedly connected to a heat dissipation layer, nuts are installed at both left and right ends of the connecting pipe body, and a storage groove is opened at the inner left end of the nut, and a connecting groove is opened at the inner right end of the nut;

[0007] A gasket is slidably connected inside the storage groove, and a carbon steel joint body is installed inside the storage groove. The right end of the carbon steel joint body is fixedly connected to a threaded pipe, and the left end of the carbon steel joint body is fixedly connected to a threaded connecting pipe.

[0008] Preferably, the connecting pipe body is composed of an explosion-proof pipe, a pipe head and a vulcanized rubber protective layer. The left and right ends of the explosion-proof pipe are fixedly connected to the pipe heads, and the outer sides of the explosion-proof pipe and the pipe head are fixedly connected to the vulcanized rubber protective layer.

[0009] Preferably, a heat insulation layer and a heat dissipation layer are fixedly connected inside the side wall of the explosion-proof pipe.

[0010] Preferably, the outer side of the pipe head is fixedly connected to the inner side of the connecting groove.

[0011] Preferably, the outer side of the middle portion of the carbon steel joint body fits in with the inner side of the storage groove.

[0012] Preferably, the right side of the middle portion of the carbon steel joint body fits with the left side of the gasket.

[0013] Preferably, the outer side of the threaded pipe is threadedly connected to the inner side of the connecting groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the explosion-proof flexible connecting pipe of the carbon steel joint is convenient for preventing the outer layer of the explosion-proof flexible connecting pipe from being corroded, and is convenient for heat dissipation of the explosion-proof flexible connecting pipe, thereby avoiding danger caused by excessive temperature;

[0015] 1. The left and right sides of the explosion-proof pipe are fixedly connected with pipe heads, which are fixedly connected to the inner side of the connecting groove. The outer sides of the explosion-proof pipe and the pipe head are fixedly connected with vulcanized rubber protective layers. The vulcanized rubber protective layer can prevent the explosion-proof pipe and the pipe head from being corroded, and is convenient for preventing the outer layer of the explosion-proof flexible connecting pipe from being corroded;

[0016] 2. A heat insulation layer is fixedly connected to the inner side of the side wall of the explosion-proof pipe, and a heat dissipation layer is fixedly connected to the outer side of the heat insulation layer. The heat dissipation layer is also fixedly connected to the inner side wall of the explosion-proof pipe. The heat insulation layer and the heat dissipation layer insulate and dissipate heat inside the explosion-proof pipe, which is convenient for heat dissipation of the explosion-proof flexible connecting pipe to avoid danger caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the exploded perspective structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the side cutaway structure of the explosion-proof pipe of the utility model;

[0020] Figure 4 It is a schematic diagram of the side structure of the nut of the utility model.

[0021] In the figure: 1. connecting pipe body; 101. explosion-proof pipe; 102. pipe head; 103. vulcanized rubber protective layer; 2. thermal insulation layer; 3. heat dissipation layer; 4. nut; 5. storage slot; 6. connecting slot; 7. gasket; 8. carbon steel joint body; 9. threaded pipe; 10. threaded connecting pipe. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: an explosion-proof flexible connecting pipe of a carbon steel joint, comprising a connecting pipe body 1, an explosion-proof pipe 101, a pipe head 102, a vulcanized rubber protective layer 103, a heat insulation layer 2, a heat dissipation layer 3, a nut 4, a storage groove 5, a connecting groove 6, a gasket 7, a carbon steel joint body 8, a threaded pipe 9 and a threaded connecting pipe 10.

[0024] The connecting pipe body 1 is composed of an explosion-proof pipe 101, a pipe head 102 and a vulcanized rubber protective layer 103. The left and right ends of the explosion-proof pipe 101 are fixedly connected with the pipe head 102. The outer sides of the explosion-proof pipe 101 and the pipe head 102 are fixedly connected with the vulcanized rubber protective layer 103 to prevent the outer side of the explosion-proof pipe 101 from being corroded. The inner side of the side wall of the explosion-proof pipe 101 is fixedly connected with a heat insulation layer 2. The outer side of the heat insulation layer 2 is fixedly connected with a heat dissipation layer 3. The heat dissipation layer 3 is also fixedly connected to the inner side wall of the explosion-proof pipe 101. The heat insulation layer 2 and the heat dissipation layer 3 can dissipate heat for the explosion-proof pipe 101.

[0025] The left and right sides of the pipe head 102 are fixedly connected with nuts 4, a storage groove 5 is provided inside the left end of the nut 4, and a connecting groove 6 is fixedly connected to the right end of the nut 4. The nut 4, the storage groove 5 and the middle part of the connecting groove 6 are connected, and the inner side of the connecting groove 6 is provided with a thread, and a gasket 7 is slidably connected inside the storage groove 5. A carbon steel joint body 8 is installed inside the storage groove 5, and a threaded pipe 9 is fixedly connected to the right side of the carbon steel joint body 8. The outer side of the threaded pipe 9 is provided with a thread, and the outer side of the threaded pipe 9 is threadedly connected to the inner side of the connecting groove 6. The inner side of the middle part of the carbon steel joint body 8 is connected to the outer side of the gasket 7. The gasket 7 cushions the inner connection between the carbon steel joint body 8 and the storage groove 5. The left side of the carbon steel joint body 8 is fixedly connected with a threaded connecting pipe 10, the inner side of the threaded connecting pipe 10 is provided with threads, and the threaded connecting pipe 10 is connected with an external device. The carbon steel joint body 8, the threaded pipe 9 and the middle part of the threaded connecting pipe 10 are connected. A set of nuts 4 and the carbon steel joint body 8 are installed on both sides of the explosion-proof pipe 101. The above completes a series of operations of the explosion-proof flexible connecting pipe of the carbon steel joint. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0026] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An explosion-proof flexible connecting pipe with a carbon steel joint, comprising a connecting pipe body (1), a nut (4) and a carbon steel joint body (8), characterized in that: The inner end of the connecting pipe body (1) is fixedly connected to a heat insulation layer (2), and the outer side of the heat insulation layer (2) is fixedly connected to a heat dissipation layer (3); nuts (4) are installed at both left and right ends of the connecting pipe body (1), and a storage groove (5) is provided at the inner left end of the nut (4), and a connection groove (6) is provided at the inner right end of the nut (4); A gasket (7) is slidably connected inside the storage groove (5), and a carbon steel joint body (8) is installed inside the storage groove (5). The right end of the carbon steel joint body (8) is fixedly connected to a threaded pipe (9), and the left end of the carbon steel joint body (8) is fixedly connected to a threaded connecting pipe (10).

2. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 1, characterized in that: The connecting pipe body (1) is composed of an explosion-proof pipe (101), a pipe head (102) and a vulcanized rubber protective layer (103); the left and right ends of the explosion-proof pipe (101) are fixedly connected to the pipe head (102), and the outer side surfaces of the explosion-proof pipe (101) and the pipe head (102) are fixedly connected to the vulcanized rubber protective layer (103).

3. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 2, characterized in that: A heat insulation layer (2) and a heat dissipation layer (3) are fixedly connected inside the side wall of the explosion-proof pipe (101).

4. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 2, characterized in that: The outer side of the pipe head (102) is fixedly connected to the inner side of the connecting groove (6).

5. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 1, characterized in that: The outer side of the middle part of the carbon steel joint body (8) is in contact with the inner side of the storage groove (5).

6. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 1, characterized in that: The right side of the middle part of the carbon steel joint body (8) is in contact with the left side of the gasket (7).

7. The explosion-proof flexible connecting pipe of a carbon steel joint according to claim 1, characterized in that: The outer side of the threaded tube (9) is threadedly connected to the inner side of the connecting groove (6).

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