Double-pressure type all-insulation intermediate joint
By adopting a double-pressure structure in the intermediate joint, and utilizing the sleeve and compression design of the copper sleeve and copper tube, the problem of unstable connection of the intermediate joint in harsh environments is solved, and a more stable and compact wire connection is achieved.
Patent Information
- Application Number
- CN202422991742.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing intermediate joints have poor connection strength and are not very stable in complex and harsh environments such as aerospace and marine applications.
It adopts a double-pressure structure, including an insulating tube, a copper tube, and two copper sleeves. The copper sleeves are fitted onto the crimped sections at both ends of the copper tube, and the wires are pressed tightly by a crimping device to enhance the connection strength.
It improves the stability and reliability of wire connections, adapts to harsh environments, and has a more compact and convenient structure.
Smart Images
Figure CN223599475U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of intermediate joint especially a double -pressure type full insulation intermediate joint. BACKGROUND
[0002] Intermediate joint usually refers to cable intermediate joint, that is, cable joint in the middle part of cable line. Intermediate joint is a cable accessory for the intermediate connection of crosslinked cable or oil immersed cable of various voltage grades. The main function is to keep the line smooth, keep the cable sealed, and ensure the insulation level at the cable joint, so that it can operate safely and reliably. The intermediate joint in the prior art generally comprises an insulation pipe and a copper pipe, the copper pipe is coaxial with the insulation pipe and is arranged in the insulation pipe, wires are respectively placed into the insulation pipe from both ends and inserted into the copper pipe, at this time, the intermediate joint is compressed by a compression device such as a wire clamp, and the connection of the two is completed, but in complex and harsh environments such as aerospace and navigation, the connection strength between the intermediate joint and the wire is poor and unstable, so the prior art needs to be improved. SUMMARY
[0003] Based on the above problems, the utility model provides a double -pressure type full insulation intermediate joint which is stable, reliable and has more firm compression.
[0004] To achieve the above object, the utility model provides the following technical scheme: a double -pressure type full insulation intermediate joint, comprising an insulation pipe and a copper pipe, the copper pipe is coaxial with the insulation pipe and is arranged in the insulation pipe, further comprising two copper sleeves, two copper sleeves are respectively placed into both ends of the insulation pipe, the copper pipe is arranged between the two copper sleeves, both ends of the copper pipe are respectively provided with a compression section for compression, and the two compression sections are respectively sleeved with the two copper sleeves.
[0005] By adopting the above technical scheme, the two copper sleeves are sleeved with the compression sections at both ends of the copper pipe, and the assembled copper sleeve and copper pipe are arranged in the insulation pipe. When the wires are respectively inserted into the compression section position of the copper pipe from both ends of the insulation pipe, the insulation pipe is compressed by a compression device such as a wire clamp at this time, so that the copper sleeve and the copper pipe in the insulation pipe are deformed to compress the wire, the copper sleeve is sleeved outside the copper pipe, the structural strength during compression is increased, the compression of the wire is more stable and firm, the connection of the wire in harsh environment can be adapted, and the practicality and reliability of the structure are further improved.
[0006] The utility model further sets up: the length of the compression section is matched with the length of the corresponding sleeved copper sleeve.
[0007] By adopting the above technical scheme, the length of the compression section and the copper sleeve is matched, the structural strength of compression between the two is improved, the volume is reduced, and the structure is more compact.
[0008] The copper sleeve is provided with an expansion at the other end relative to the copper pipe.
[0009] By adopting the above technical scheme, when the wire is inserted along the end of the insulating pipe, the expansion is provided, so that the insertion of the wire is more convenient, the inner diameter of the insulating pipe corresponding to the expansion position is matched with the expansion, the assembly of the copper sleeve is facilitated, and the convenience of assembly is further improved, and the copper sleeve and the expansion are preferably integrally formed, so that the structural strength is improved and the assembly is facilitated.
[0010] The utility model further provides: expansion includes expansion, extension, the cross section of expansion is set up in trapezoidal, the one end of expansion inner diameter is small and corresponds copper sleeve position and with copper sleeve inner diameter is matched, extension sets up in expansion inner diameter big one end and with its inner diameter is matched.
[0011] By adopting the above technical scheme, the cross section of the expansion is set up in trapezoidal, so that when the wire is inserted from the expansion position, the expansion expands the size of the inlet end of the copper sleeve, the wire insertion is facilitated, and the convenience of wire insertion is improved, and the extension is provided, so that the structural strength is further improved, and subsequent assembly and crimping are facilitated.
[0012] The utility model further provides: the junction of copper sleeve and expansion is chamfered.
[0013] By adopting the above technical scheme, when the copper pipe and the copper sleeve are connected and installed, the chamfered setting of the junction of the copper sleeve and the expansion plays a limiting role in installation, and assembly is facilitated.
[0014] The utility model further provides: the middle part of copper pipe is provided with the interval part that concaves downwards.
[0015] By adopting the above technical scheme, when the wire is inserted along the two end positions of the copper pipe respectively, the interval part provided in the middle part of the copper pipe plays a spacing limiting role between the two wires, so that the two inserted wires are kept equal in length, and the structural reliability is improved. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 For the structure of the utility model embodiment Figure 1 ;
[0017] Figure 2 For the structure of the utility model embodiment Figure 2 ;
[0018] Figure 3 For the structure of the utility model embodiment
[0019] Figure 4 For the structure of the utility model embodiment
[0020] Meaning of figure mark: 1-insulating tube, 2-copper tube, 3-copper sleeve, 4-flared, 401-flared part, 402-extension, 5-interval. DETAILED DESCRIPTION
[0021] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and a person skilled in the art can make a modification without creative contribution according to the need after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.
[0022] Referring to the accompanying Figures 1-4 The utility model discloses a double -pressure type full insulation intermediate joint, including insulating tube 1, copper pipe 2, copper pipe 2 with insulating tube 1 same axle setting and placing into insulating tube 1, still including two copper sleeves 3, two copper sleeves 3 are placed into the both ends of insulating tube 1 respectively, copper pipe 2 is set between two copper sleeves 3, the both ends of copper pipe 2 are provided with the compression joint section for compression joint respectively, and two compression joint sections are respectively with two copper sleeves 3 and are connected. The setting of two copper sleeves 3 makes it respectively connect in the compression joint section of copper pipe 2 both ends, and the copper sleeve 3 and copper pipe 2 of assembled are placed into insulating tube 1, when wire is inserted and placed into the compression joint section position of copper pipe 2 from the both ends of insulating tube 1 respectively, at this time, the copper sleeve 3 in insulating tube 1 and copper pipe 2 are deformed and are compressed tightly wire by the compression of wire pliers and so on compression joint device, and the copper sleeve 3 is connected on the outside of copper pipe 2, increases the structural strength when compression joint, makes the compression joint of wire more stable, firm, can adapt to the connection of wire under the harsh environment, further improves the practicality, reliability of structure.
[0023] The utility model further sets up: the length of compression joint section and the length of corresponding copper sleeve 3 of connection are adapted. The length of compression joint section and copper sleeve 3 is adapted, improves the structural strength of compression joint between both, reduces the volume simultaneously, and the structure is more compact.
[0024] The utility model further sets up: copper sleeve 3 is provided with flared 4 relative to another end of copper pipe 2. When wire is along the end of insulating tube 1 and is entered, the setting of flared 4 makes the insertion of wire more convenient, and the inside diameter of insulating tube 1 corresponding flared 4 position and flared 4 are adapted, facilitate the assembly of copper sleeve 3 subsequently further improve the convenience of assembly, and copper sleeve 3 and flared 4 are preferably integrally formed and set, improve the structural strength, facilitate subsequent assembly and compression joint simultaneously.
[0025] The utility model further sets up: the flared mouth 4 includes flared mouth part 401, extension 402, the cross section of flared mouth part 401 is trapezoidal and is arranged, the one end of flared mouth part 401 small inner diameter corresponds copper bush 3 position and with copper bush 3 inner diameter is adapted, extension 402 sets up in flared mouth part 401 big inner diameter one end and with its inner diameter is adapted. The cross section of flared mouth part 401 is trapezoidal and is arranged, so that when the wire is inserted from the flared mouth 4 position, flared mouth part 401 enlarged the size of copper bush 3 import end, the convenience wire insertion is improved, the convenience of wire insertion is improved, the setting of extension 402, further improve structural strength, the subsequent assembly is convenient.
[0026] The utility model further sets up: the junction of copper bush 3 and flared mouth 4 is round cornered and is arranged.When copper pipe 2 and copper bush 3 are connected and installed, the round cornered setting of the junction of copper bush 3 and flared mouth 4, plays installation limiting effect, and assembly is convenient.
[0027] The utility model further sets up: the middle part of copper pipe 2 is provided with the interval 5 that concaves downwards.When the wire is inserted along the both ends position of copper pipe 2 respectively, the interval 5 of setting in the middle part of copper pipe 2, plays the interval limiting effect between the wire of both ends, makes the wire of two segments insertion keep is equal length, improves structural reliability.
[0028] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill of the technical field, on the premise of not departing from the technical principle of the utility model, can also make several improvements and variations, the improvement and variation of the above supposition also should be regarded as the protection scope of the utility model.
Claims
1. A double pressure all-insulated intermediate joint comprising an insulating pipe and a copper pipe, the copper pipe being coaxially arranged with the insulating pipe and being inserted into the insulating pipe, characterized in that: Two copper sleeves are respectively arranged in the two ends of the insulating tube, and a copper tube is arranged between the two copper sleeves. 2. A double pressure full insulated joint as claimed in claim 1, wherein: The length of the crimping section is matched with the length of the corresponding copper sleeve.
3. A double pressure full insulated joint as claimed in claim 1, wherein: The copper sleeve is provided with a flared portion at the other end of the copper tube.
4. A double pressure full insulated joint as claimed in claim 3, wherein: The flared portion comprises a flared portion and an extension portion.
5. A double pressure full insulated joint as claimed in claim 3, wherein: The connection between the copper sleeve and the flared portion is provided with a rounded corner.
6. A double pressure full insulated joint as claimed in claim 1, wherein: The middle part of the copper tube is provided with a downwardly recessed interval portion.