Energy-saving hollow cable head

Abstract

The utility model discloses an energy-saving hollow-core cable head, which comprises a lower joint, an upper joint, a joint guard bar and a joint clamping seat, and is characterized in that the lower joint is integrally connected to the bottom end of the joint guard bar, and the lower joint is a threaded sealing joint and can be communicated with an external cable; the joint protection rod is a hollow pipe, the inner side of the joint protection rod is provided with an inner cable communicated with the lower joint, and the upper end of the joint protection rod is integrally connected with a joint clamping seat; the connector clamping seat comprises a supporting seat and a clamping seat, wherein the supporting seat is hollow, and an open hole is formed in the side edge of the supporting seat. The clamping base is a U-shaped clamping base, the upper connector can be clamped on the inner side of the clamping base, a pin hole is formed in the lower end of the clamping base, and the inner side of the upper end of the supporting base is connected with the pin hole through a pin shaft. The utility model can satisfy the installation in some special environments, does not need to configure a plurality of special-shaped connecting pipes, consumes less material, and has better energy-saving and environment-friendly properties.

Description

Technical Field

[0001] The utility model relates to the field of medium frequency furnace cable heads, in particular to an energy-saving hollow-core cable head. Background Art

[0002] With the development of the times and the continuous deepening of cemented carbide research, ultra-coarse-grained cemented carbide has shown a trend of shifting from simple material preparation to focusing on material application research, and has become one of the representatives of the world's major technological progress in cemented carbide. The raw material of ultra-coarse cemented carbide is ultra-coarse tungsten carbide powder. At present, carbon tube furnaces and medium-frequency furnaces are mainly used for high-temperature carbonization production. Medium-frequency furnaces have the advantages of small size, light weight, high efficiency, and excellent thermal processing quality. They are rapidly replacing coal-fired furnaces, gas furnaces, oil furnaces and ordinary resistance furnaces. They are a new generation of metal heating equipment and have good development prospects in the field of thermal processing.

[0003] Hollow-core cables (water-cooled cables) and their joint parts are one of the parts of the medium-frequency furnace. Among them, hollow-core cables (water-cooled cables) are composed of cable copper tubes, wires, water-cooled chambers and other parts, and hollow-core cable joints (water-cooled cable joints) are a kind of hollow water-permeable special cable interface used for high-current heating equipment, usually composed of three parts: cable head, wire, and outer sheath tube. The hollow-core cable joint has the function of connecting the hollow-core cable. Since the cable copper tubes of the existing hollow-core cables are made of copper tube materials with strong rigidity, the hollow-core cable joints can only be connected in a direct way, which will cause the angle of the cable copper tube to be certain, which cannot meet the installation requirements in some special environments, resulting in the need to configure multiple special-shaped joints, which consumes a lot of materials and is not conducive to energy saving and environmental protection. Utility Model Content

[0004] The utility model aims to provide an energy-saving hollow cable head to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving hollow cable head, comprising a lower joint, an upper joint, a joint guard rod and a joint holder, wherein the lower joint is integrally connected to the bottom end of the joint guard rod, the lower joint is a threaded sealing joint and can be connected to an external cable; the joint guard rod is a hollow tube, the inner side of the joint guard rod is provided with an inner cable connected to the lower joint, and the upper end of the joint guard rod is integrally connected with a joint holder; the joint holder comprises a support seat and a holder, wherein the support seat is hollow inside and an opening is provided on its side; the holder is a U-shaped holder, the upper joint can be clamped on the inner side of the holder, a pin hole is provided at the lower end of the holder, and the inner side of the upper end of the support seat is connected to the pin hole through a pin shaft.

[0006] Preferably, a through hole is provided at the bottom of the support seat, the inner cable end on the inner side of the joint guard rod passes through the joint guard rod and is connected to a bendable cable, and the bendable cable passes through the through hole at the bottom of the support seat, the opening on the side and is connected to the upper joint.

[0007] Preferably, sealing rings are provided on the bottom and side of the support seat, and the inner sides of the perforations and openings. The sealing rings can press and seal with the bendable cable when the bendable cable passes through.

[0008] Preferably, the upper connector includes an upper connector body, a waterproof component and a compression nut, wherein the waterproof component is sleeved on the bendable cable end extending into the upper connector body, and a compression nut is provided on the outside of the upper connector body to fix the upper connector body and the waterproof component.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] The utility model adopts the method of lower joint and upper joint, wherein the lower joint is connected to the external hollow cable through the inner cable inside the lower joint, and the upper joint is connected to the inner cable through the bendable cable. Since the bendable cable has a certain deformation ability, the installation / docking angle of the upper joint can be changed by adjusting the angle of the socket, which meets the installation requirements in some special environments, and there is no need to configure multiple special-shaped connecting pipes, so the consumables are less and the energy saving and environmental protection are better. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0012] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0013] Figure 3 It is a structural schematic diagram of the upper joint of the utility model.

[0014] In the figure: 1. lower connector; 2. connector guard bar; 3. connector holder; 301. support base; 302. holder; 4. upper connector; 401. upper connector body; 402. waterproof part; 403. compression nut; 5. bendable cable. DETAILED DESCRIPTION

[0015] 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.

[0016] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 a limitation on the present invention.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 according to specific circumstances.

[0018] See also Figure 1-3 The utility model provides a technical solution: an energy-saving hollow cable head, comprising a lower joint 1, an upper joint 4, a joint guard rod 2 and a joint clamping seat 3, wherein the lower joint 1 is integrally connected to the bottom end of the joint guard rod 2, the lower joint 1 is a threaded sealing joint and can be connected to an external hollow cable; the joint guard rod 2 is a hollow tube, the inner side of the joint guard rod 2 is provided with an inner cable connected to the lower joint 1, and the upper end of the joint guard rod 2 is integrally connected with a joint clamping seat 3; the joint clamping seat 3 comprises a support seat 301 and a clamping seat 302, wherein the support seat 301 is hollow inside and has an opening on its side; the clamping seat 302 is a U-shaped clamping seat, the upper joint 4 can be clamped on the inner side of the clamping seat 302, a pin hole is provided at the lower end of the clamping seat 302, and the inner side of the upper end of the support seat 301 is connected to the pin hole through a pin shaft.

[0019] In this embodiment, a through hole is provided at the bottom of the support seat 301, and the inner cable end on the inner side of the joint guard rod 2 passes through the joint guard rod 2 and is connected to the bendable cable 5. The bendable cable 5 passes through the through hole at the bottom of the support seat 301, the opening on the side and is connected to the upper joint 4.

[0020] In this embodiment, sealing rings are provided inside the through holes and openings at the bottom and sides of the support seat 301 , and the sealing rings can press and seal with the bendable cable 5 when the bendable cable 5 passes through.

[0021] In this embodiment, the upper connector 4 includes an upper connector body 401, a waterproof component 402 and a compression nut 403, wherein the waterproof component 402 is sleeved on the end of the bendable cable 5 extending into the upper connector body 401, and a compression nut 403 is provided on the outside of the upper connector body 401 to fix the upper connector body 401 and the waterproof component 402.

[0022] In this embodiment, the above-mentioned external hollow cable, inner cable, and bendable cable 5 are all hollow water-cooled cables, wherein the external hollow cable and the inner cable are fixed hollow water-cooled cables, and the bendable cable 5 is a bendable hollow water-cooled cable. The bendable hollow water-cooled cable and the fixed hollow water-cooled cable both include a cable copper tube and a conductor, wherein the cable copper tube is provided with a conductor, and the cable copper tube is provided with an annular hollow water-cooling cavity surrounding the conductor.

[0023] In this embodiment, the above-mentioned method of using a lower connector 1 and an upper connector 4 is adopted, wherein the lower connector 1 is connected to the external hollow cable through the inner cable inside thereof, and the upper connector 4 is connected to the inner cable through the bendable cable 5. Since the bendable cable 5 has a certain deformation ability, the installation / docking angle of the upper connector 4 can be changed by adjusting the angle of the socket.

[0024] It is worth noting that: since hollow-core cables are commonly used components of medium-frequency furnaces, they are existing mature technologies, and their specific structures are not described here. The cable head provided in this application is intended to meet the installation requirements in some special environments, and does not require the configuration of multiple special-shaped pipes, has fewer consumables, and is more energy-saving and environmentally friendly.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving hollow cable head, characterized in that: The invention comprises a lower joint (1), an upper joint (4), a joint protection rod (2) and a joint clamping seat (3), wherein the lower joint (1) is integrally connected to the bottom end of the joint protection rod (2), the lower joint (1) is a threaded sealing joint and can be connected to an external hollow cable; the joint protection rod (2) is a hollow tube, an inner cable connected to the lower joint (1) is arranged on the inner side of the joint protection rod (2), and the upper end of the joint protection rod (2) is integrally connected to the joint clamping seat (3); the joint clamping seat (3) comprises a support seat (301) and a clamping seat (302), wherein the support seat (301) is hollow inside and has an opening on its side; the clamping seat (302) is a U-shaped clamping seat, the inner side of the clamping seat (302) can clamp the upper joint (4), the lower end of the clamping seat (302) is provided with a pin hole, and the inner side of the upper end of the support seat (301) is connected to the pin hole via a pin shaft.

2. The energy-saving hollow cable head according to claim 1, characterized in that: The bottom of the support seat (301) is provided with a through hole, the inner cable end inside the joint guard rod (2) passes through the joint guard rod (2) and is connected to a bendable cable (5), and the bendable cable (5) passes through the through hole at the bottom of the support seat (301), the opening on the side, and is connected to the upper joint (4).

3. The energy-saving hollow cable head according to claim 1, characterized in that: The bottom and side perforations and the inner sides of the openings of the support seat (301) are provided with sealing rings, and the sealing rings can press and seal against the bendable cable (5) when the bendable cable (5) passes through.

4. The energy-saving hollow cable head according to claim 1, characterized in that: The upper connector (4) comprises an upper connector body (401), a waterproof component (402) and a compression nut (403), wherein the waterproof component (402) is sleeved on the end of a bendable cable (5) extending into the upper connector body (401), and a compression nut (403) is provided on the outside of the upper connector body (401) for fixing the upper connector body (401) and the waterproof component (402).

Images