CN210296662U - Tensile cable - Google Patents
Tensile cable Download PDFInfo
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- CN210296662U CN210296662U CN201921665855.0U CN201921665855U CN210296662U CN 210296662 U CN210296662 U CN 210296662U CN 201921665855 U CN201921665855 U CN 201921665855U CN 210296662 U CN210296662 U CN 210296662U
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Abstract
The utility model relates to the technical field of cables, and aims to provide a tensile cable, which comprises a first cable section, a second cable section, a connecting device and a conducting structure; the connecting device comprises an outer sleeve, a first connecting part and a second connecting part; the first connecting part and the second connecting part are respectively fixedly connected with the first cable section and the second cable section and can move relatively along the axial lead of the outer sleeve; a tensile spring is fixedly connected between the first connecting part and the second connecting part; the first cable section and the second cable section are connected by using the connecting device, so that the controllable extension of the cable length is realized; the first cable section and the second cable section generate a certain degree of elastic expansion variable through the tensile spring, and have a good buffering effect, so that the cable is prevented from being directly damaged or broken due to pulling; and the first connecting part and the second connecting part can keep conductive communication when moving relatively through the conducting structure.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to tensile cable.
Background
The manufacturing length of the cable is generally 400-800 meters, and the length of the cable line is generally about 2km, so that a large number of intermediate and intermediate joints of the cable are needed for splicing and extending the cable in the development of an urban power grid.
At present, chinese patent document with publication number CN202949202U in the prior art discloses a joint main body of a cross-linked cable intermediate joint and a novel intermediate joint composed of the same, which comprises an insulating layer, a stress cone and a high-voltage shielding tube arranged in the insulating layer, a cable conductor connecting fitting, and a high-voltage shielding cover arranged at the joint of two cables, wherein the ends of the two cables are electrically connected and fixed by the cable conductor connecting fitting, grooves are formed at the ends of the two cable insulating layers, and the two ends of the high-voltage shielding cover are respectively clamped in the grooves at the ends of the two cable insulating layers, so as to realize further fixation.
However, the connection mode of the cable conductor connection fitting, the two ends of the high-voltage shielding cover and the clamping fit of the groove are all hard connection or fit, and when the cable is subjected to a large pulling force, the connection part is easily damaged or broken.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tensile cable when can continuing to connect the cable, has good tensile ability.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a tensile cable comprises a first cable section, a second cable section and a connecting device connected between the first cable section and the second cable section, wherein the connecting device comprises an outer sleeve, and a first connecting part and a second connecting part which are respectively arranged at two ends in the outer sleeve; the first connecting part and the second connecting part are conductive media and are respectively fixedly connected with the first cable section and the second cable section, and the first connecting part and the second connecting part can move relatively along the axial lead of the outer sleeve; a conducting structure which enables the first connecting part and the second connecting part to keep conductive when the first connecting part and the second connecting part move relatively is arranged between the first connecting part and the second connecting part; and a tensile spring is arranged between the first connecting part and the second connecting part, and two ends of the tensile spring are fixedly connected with the first connecting part and the second connecting part respectively.
By adopting the technical scheme, the first cable section and the second cable section are connected by the connecting device, so that the controllable extension of the cable length is realized; the first cable section and the second cable section generate a certain degree of elastic expansion variable through the tensile spring, and have a good buffering effect, so that the cable is prevented from being directly damaged or broken due to pulling; and the first connecting part and the second connecting part can keep conductive communication when moving relatively through the conducting structure.
The utility model discloses further set up to: the conducting structure comprises a guide pillar and a guide sleeve which are respectively arranged at two opposite ends of the first connecting part and the second connecting part, and the guide pillar and the guide sleeve are conductive media; the guide pillar and the guide sleeve both extend along the axial lead of the outer sleeve; the guide sleeve is hollow, an opening is formed in one end, facing the guide pillar, of the guide sleeve, and the guide pillar is connected in the guide sleeve in a sliding mode.
Through adopting above-mentioned technical scheme, utilize the sliding fit between guide pillar and the guide pin bushing, make first connecting portion and second connecting portion can keep electrically conductive intercommunication when relative motion.
The utility model discloses further set up to: the end part of the guide pillar facing the guide sleeve is provided with a central hole along the axial lead; and the second connecting part is provided with a guide pin in clearance fit with the central hole.
Through adopting above-mentioned technical scheme, utilize the clearance fit between guide pin and the centre bore, increase area of contact between the two to the upper limit that the increase electric current passed through strengthens switching on the effect.
The utility model discloses further set up to: an outer chamfer is arranged at the end part of the guide pin along the circumferential direction; and an inner chamfer is arranged on the inner side of the end part of the guide sleeve along the circumferential direction.
By adopting the technical scheme, the guide pin can be accurately inserted into the central hole by utilizing the outer chamfer, and the guide sleeve can be conveniently sleeved outside the guide pin by utilizing the inner chamfer.
The utility model discloses further set up to: a plurality of positioning steps with triangular sections are uniformly arranged on the surface of the guide pillar along the axial direction; a plurality of positioning grooves matched with the positioning steps are uniformly arranged on the inner wall of the guide sleeve along the length direction of the guide sleeve; the guide sleeve has elastic restoration capacity.
Through adopting above-mentioned technical scheme, utilize location step and constant head tank cooperation to realize multistage location effect, when the guide pin bushing and guide pillar carried out relative motion along the axial, the guide pin bushing took place to expand deformation towards the outside under the effect of location step, the resistance that relative motion received between increase guide pillar and the guide pin bushing to strengthen the holistic tensile ability of cable.
The utility model discloses further set up to: the end part of the guide sleeve facing the guide post is provided with a deformation notch extending along the axial direction.
Through adopting above-mentioned technical scheme, utilize the deformation breach to be convenient for the guide pin bushing to take place expansion deformation.
The utility model discloses further set up to: the positioning step is annular along the circumferential direction of the guide pillar; the locating slot is annular along the circumference of the inner wall of the guide sleeve.
By adopting the technical scheme, the guide pillar and the guide sleeve are prevented from rotating relatively along the axial lead, and the positioning step can not be embedded into the positioning groove to realize matching.
The utility model discloses further set up to: the minimum distance between the inner side of the tensile spring and the outer wall of the guide sleeve is smaller than the depth of the positioning step embedded into the positioning groove.
Through adopting above-mentioned technical scheme for guide pin bushing and guide pillar when carrying out relative motion, the guide pin bushing outwards expand deformation can with the inboard extrusion of tensile spring under the effect of location step, thereby utilize tensile spring to retrain the deformation and the displacement of guide pin bushing in the ascending elastic capacity of circumference.
The utility model discloses further set up to: the two ends of the tensile spring are fixedly connected with a fixing ring respectively, and the fixing rings at the two ends are fixedly connected with the first connecting portion and the second connecting portion respectively through threads.
Through adopting above-mentioned technical scheme, utilize threaded connection's mode to fix, realize solid fixed ring and the first connecting portion and the second connecting portion between can dismantle and be connected, make things convenient for dismouting and change.
To sum up, the beneficial effects of the utility model are that:
1. the first cable section and the second cable section are connected by using the connecting device, so that the controllable extension of the cable length is realized; the first cable section and the second cable section generate a certain degree of elastic expansion variable through the tensile spring, and have a good buffering effect, so that the cable is prevented from being directly damaged or broken due to pulling; the first connecting part and the second connecting part can keep conductive communication when moving relatively through the conducting structure;
2. utilize location step and constant head tank cooperation to realize multistage location effect, when the guide pin bushing carries out relative motion with the guide pillar along the axial, the guide pin bushing takes place to expand deformation towards the outside under the effect of location step, increases the resistance that relative motion received between guide pillar and the guide pin bushing to strengthen the holistic tensile ability of cable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic diagram of the explosion structure of the present invention;
fig. 3 is a schematic partial sectional view of the present invention.
Reference numerals: 1. a first cable segment; 2. a second cable segment; 3. a connecting device; 31. an outer sleeve; 32. a first connection portion; 33. a second connecting portion; 4. a conducting structure; 41. a guide post; 411. a central bore; 412. positioning a step; 42. a guide sleeve; 421. inner chamfering; 422. positioning a groove; 423. deformation gaps; 43. guiding a needle; 431. chamfering the outer part; 5. a tension spring; 51. and (4) fixing the ring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment discloses a tensile cable, as shown in fig. 1, including first cable section 1, second cable section 2, connect in connecting device 3 between first cable section 1 and second cable section 2, continue to connect first cable section 1 and second cable section 2 through connecting device 3, also can be continuous each other between the multistage cable section, realize the controllable extension of cable length.
As shown in fig. 1, the connecting device 3 includes an outer sleeve 31, a first connecting portion 32 fixedly connected to one end position in the outer sleeve 31, and a second connecting portion 33 slidably connected to the other end position in the outer sleeve 31; the first connecting portion 32 and the second connecting portion 33 are made of conductive metal, and an outward end of the first connecting portion 32 is fixedly connected to the first cable segment 1, and an outward end of the second connecting portion 33 is fixedly connected to the second cable segment 2.
As shown in fig. 2, the second connecting portion 33 is slidably connected inside the outer sleeve 31 along the axial line of the outer sleeve 31, and a conducting structure 4 for keeping the first connecting portion 32 and the second connecting portion 33 conductive during relative movement is provided between the two. The conducting structure 4 comprises a guide post 41 integrally formed on the inward end of the first connecting portion 32 and a guide sleeve 42 integrally formed on the inward end of the second connecting portion 33, wherein both the guide post 41 and the guide sleeve 42 extend along the axial lead of the outer sleeve 31; the guide sleeve 42 is hollow and has an opening at one end facing the guide post 41, and the guide post 41 is slidably connected in the guide sleeve 42; the end of the guide post 41 facing the guide sleeve 42 is provided with a central hole 411 along the axial line, and the second connecting portion 33 is integrally formed with a guide pin 43 in clearance fit with the central hole 411. The sliding contact fit between the guide post 41 and the guide sleeve 42 and between the guide pin 43 and the guide post 41 are utilized to keep the first connecting part 32 and the second connecting part 33 in conductive communication during relative movement.
As shown in fig. 2 and 3, an outer chamfer 431 is formed at an end of the guide pin 43 along the circumferential direction, and an inner chamfer 421 is formed at an inner side of the end of the guide sleeve 42 along the circumferential direction. The guide pin 43 can be accurately inserted into the central hole 411 by the outer chamfer 431, and the guide sleeve 42 can be conveniently sleeved outside the guide post 41 by the inner chamfer 421.
As shown in fig. 2 and 3, a plurality of positioning steps 412 are integrally formed on the surface of the guide post 41 continuously and uniformly along the axial direction, and the positioning steps 412 are annular along the circumferential direction of the guide post 41 and have an obtuse triangle cross section; the guide sleeve 42 is corrugated, a plurality of positioning grooves 422 matched with the positioning steps 412 are formed on the inner wall of the guide sleeve 42 along the length direction of the guide sleeve, each positioning groove 422 is a ring along the circumferential direction of the inner wall of the guide sleeve 42, and the positioning steps 412 and the positioning grooves 422 are matched to realize a multi-stage positioning effect. And the guide pin bushing 42 is made by metal, have certain elastic resilience ability, and the guide pin bushing 42 has evenly seted up four along the deformation breach 423 that the axial extends to the guide pin bushing 42 other end along circumference towards the tip of guide pillar 41, when guide pin bushing 42 and guide pillar 41 carry out relative motion along the axial, guide pin bushing 42 can take place to expand deformation towards the outside under the effect of location step 412, and make location step 412 and constant head tank 422 extrude each other under the elastic action, increase frictional force between the two, and form multistage buffering effect, thereby the holistic tensile strength of cable has been strengthened.
As shown in fig. 2, the tension spring 5 is disposed between the first connecting portion 32 and the second connecting portion 33, two fixing rings 51 are welded to two ends of the tension spring 5, the fixing rings 51 at two ends are respectively fixed to the first connecting portion 32 and the second connecting portion 33 by a threaded connection, and a thread fastening direction of the fixing rings 51 is opposite to a thread direction of the tension spring 5. The tensile spring 5 enables a certain degree of elastic expansion variable to be formed between the first cable section 1 and the second cable section 2, a good buffering effect is formed, and the cable is prevented from being directly damaged or broken due to pulling; and the fixing ring 51 is detachably connected with the first connecting part 32 and the second connecting part 33 in a threaded connection mode, so that the disassembly, assembly and replacement are convenient.
As shown in fig. 2 and 3, the minimum distance between the inner side of the tension spring 5 and the outer wall of the guide sleeve 42 is smaller than the depth of the positioning step 412 embedded into the positioning groove 422, so that when the guide sleeve 42 and the guide pillar 41 perform relative motion, the outward expansion deformation of the guide sleeve 42 under the action of the positioning step 412 will be extruded with the inner side of the tension spring 5, and the deformation and displacement of the guide sleeve 42 are constrained by the elastic capability of the tension spring 5 in the circumferential direction.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a tensile cable, includes first cable section (1), second cable section (2), connects connecting device (3) between first cable section (1) and second cable section (2), its characterized in that: the connecting device (3) comprises an outer sleeve (31), a first connecting part (32) and a second connecting part (33) which are respectively arranged at two ends in the outer sleeve (31); the first connecting part (32) and the second connecting part (33) are conductive media and are respectively fixedly connected with the first cable section (1) and the second cable section (2), and the first connecting part (32) and the second connecting part (33) can move relatively along the axial lead of the outer sleeve (31); a conducting structure (4) which enables the first connecting part (32) and the second connecting part (33) to keep conductive during relative movement is arranged between the two parts; be provided with tensile spring (5) between first connecting portion (32) and second connecting portion (33), the both ends of tensile spring (5) respectively with first connecting portion (32) and second connecting portion (33) fixed connection.
2. The tensile cable of claim 1, wherein: the conducting structure (4) comprises a guide pillar (41) and a guide sleeve (42) which are respectively arranged at two opposite ends of the first connecting part (32) and the second connecting part (33), and the guide pillar (41) and the guide sleeve (42) are conductive media; the guide post (41) and the guide sleeve (42) both extend along the axial lead of the outer sleeve (31); the guide sleeve (42) is hollow, an opening is formed in one end, facing the guide post (41), of the guide sleeve (42), and the guide post (41) is connected in the guide sleeve (42) in a sliding mode.
3. The tensile cable of claim 2, wherein: a central hole (411) is formed in the end part, facing the guide sleeve (42), of the guide column (41) along the axial lead; the second connecting part (33) is provided with a guide pin (43) which is in clearance fit with the central hole (411).
4. The tensile cable of claim 3, wherein: an outer chamfer (431) is arranged at the end part of the guide pin (43) along the circumferential direction; an inner chamfer (421) is arranged on the inner side of the end part of the guide sleeve (42) along the circumferential direction.
5. The tensile cable of claim 2, wherein: a plurality of positioning steps (412) with triangular sections are uniformly arranged on the surface of the guide post (41) along the axial direction; a plurality of positioning grooves (422) matched with the positioning steps (412) are uniformly arranged on the inner wall of the guide sleeve (42) along the length direction of the guide sleeve; the guide sleeve (42) has elastic resilience.
6. The tensile cable of claim 5, wherein: the end part of the guide sleeve (42) facing the guide post (41) is provided with a deformation notch (423) extending along the axial direction.
7. The tensile cable of claim 5, wherein: the positioning step (412) is annular along the circumferential direction of the guide post (41); the positioning groove (422) is annular along the circumferential direction of the inner wall of the guide sleeve (42).
8. The tensile cable of claim 7, wherein: the minimum distance between the inner side of the tensile spring (5) and the outer wall of the guide sleeve (42) is smaller than the depth of the positioning step (412) embedded into the positioning groove (422).
9. The tensile cable of claim 1, wherein: the both ends of tensile spring (5) are fixed with solid fixed ring (51) respectively, both ends gu fixed ring (51) are fixed through threaded connection with first connecting portion (32) and second connecting portion (33) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921665855.0U CN210296662U (en) | 2019-09-28 | 2019-09-28 | Tensile cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921665855.0U CN210296662U (en) | 2019-09-28 | 2019-09-28 | Tensile cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210296662U true CN210296662U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921665855.0U Active CN210296662U (en) | 2019-09-28 | 2019-09-28 | Tensile cable |
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| Country | Link |
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| CN (1) | CN210296662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161957A (en) * | 2021-05-19 | 2021-07-23 | 凤凰电力有限公司 | Cable fixing clamp |
| CN113451956A (en) * | 2021-07-19 | 2021-09-28 | 广东电网有限责任公司 | Cable duct bank |
-
2019
- 2019-09-28 CN CN201921665855.0U patent/CN210296662U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113161957A (en) * | 2021-05-19 | 2021-07-23 | 凤凰电力有限公司 | Cable fixing clamp |
| CN113161957B (en) * | 2021-05-19 | 2023-11-17 | 凤凰电力有限公司 | Cable fixing clamp |
| CN113451956A (en) * | 2021-07-19 | 2021-09-28 | 广东电网有限责任公司 | Cable duct bank |
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