CN111697358A - Cable jointing clamp - Google Patents
Cable jointing clamp Download PDFInfo
- Publication number
- CN111697358A CN111697358A CN202010554103.8A CN202010554103A CN111697358A CN 111697358 A CN111697358 A CN 111697358A CN 202010554103 A CN202010554103 A CN 202010554103A CN 111697358 A CN111697358 A CN 111697358A
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- CN
- China
- Prior art keywords
- cable
- conductive
- connecting shaft
- clamping plate
- cable clamp
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
- H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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Abstract
The invention relates to the technical field of quick wiring and discloses a cable wiring clamp. The cable jointing clamp comprises an insulating shell, a connecting shaft, a torsion spring and a conductive clamping plate, wherein the insulating shell comprises two half shells capable of being buckled, at least two wire inlets are formed in the butt joint of the two half shells, and the wire inlets are used for clamping the outer sheath of a cable; two ends of the connecting shaft are connected to the inner wall of the insulating shell; the torsion spring is sleeved on the connecting shaft; the conductive clamping plate is rotatably connected to the connecting shaft, and two ends of the torsion spring respectively abut against the first end of the conductive clamping plate and the bottom plate of the insulating shell, so that the second end of the conductive clamping plate and the bottom plate can clamp the electric core of the cable. The cable jointing clamp is simple to operate, good in insulating property and good in clamping effect, and a connected cable is not easy to loosen.
Description
Technical Field
The invention relates to the technical field of quick wiring, in particular to a cable wiring clamp.
Background
In order to ensure the power supply safety, the current and voltage secondary circuit of the transformer substation and the like need to be overhauled and tested at regular time. When testing, the current/voltage loop needs to be disconnected, and two ends of the disconnected loop are respectively connected with the testing instrument. In order to quickly connect a disassembled cable with a cable on a test instrument, in the prior art, a cable jointing clamp is often adopted for connection, but in the prior art, the cable jointing clamp comprises a conductive clamping part, after electric cores of two cables are clamped by the conductive clamping part to realize electric connection, if the conductive clamping part is exposed, potential safety hazards are easily caused, and if the conductive clamping part is coated by an insulating adhesive tape, the speed of connection and disconnection can be influenced; in addition, after the electric cores of the two cables are clamped by the conductive part, if an operator carelessly pulls the cables, the electric cores are easily separated from the conductive part of the cable jointing clamp, and the electric cores need to be clamped and installed again, so that the operation efficiency is affected.
Therefore, it is desirable to invent a cable clamp to solve the above problems.
Disclosure of Invention
The invention aims to provide a cable jointing clamp which is simple to operate, good in insulating property, good in clamping effect and not easy to loosen a cable.
In order to achieve the purpose, the invention adopts the following technical scheme:
a cable clamp comprising:
the insulating shell comprises two half shells capable of being buckled, at least two wire inlets are formed in the butt joint of the two half shells, and the wire inlets are used for clamping the outer sheath of the cable;
the two ends of the connecting shaft are connected to the inner wall of the insulating shell;
the torsion spring is sleeved on the connecting shaft;
and the two ends of the torsion spring are respectively abutted against the first end of the conductive clamping plate and the bottom plate of the insulating shell, so that the second end of the conductive clamping plate and the bottom plate can clamp the electric core of the cable.
Optionally, a plurality of elastic latch teeth are uniformly distributed on the wire inlet along the circumferential direction, and the elastic latch teeth extend along the radial direction of the wire inlet and can elastically deform along the axial direction of the wire inlet.
Optionally, the number of the wire inlets is multiple, and the aperture of the plurality of the wire inlets is different.
Optionally, at least one of the wire inlets is disposed on a first sidewall of the insulating housing perpendicular to the connecting shaft, and at least one of the wire inlets is disposed on a second sidewall of the insulating housing perpendicular to the first sidewall.
Optionally, one side of the second end of the conductive clamping plate facing the bottom plate is provided with a conductive latch.
Optionally, the conductive latch includes a plurality of rows of first latch groups arranged perpendicular to the connecting shaft.
Optionally, the conductive latch further includes a plurality of rows of second latch groups, and the second latch groups are disposed between two adjacent rows of the first latch groups and are parallel to the connecting shaft.
Optionally, a bottom plate of the insulating housing is provided with a conductive latch, and the conductive latch is opposite to the second end of the conductive clamping plate.
Optionally, the first end of the electrically conductive splint is covered with an insulating sheath.
Optionally, two be provided with the buckle on one of half shell, be provided with the draw-in groove on the other, the buckle can the joint in the draw-in groove.
The invention has the beneficial effects that:
when the cable jointing clamp is used, the two half shells are firstly opened, then two cables to be electrically connected are respectively clamped into the two wire inlets, the wire inlets clamp the outer sheaths of the corresponding cables, then the first ends of the conductive clamping plates are pressed, gaps are pulled between the second ends of the conductive clamping plates and the bottom plate of the insulating shell under the action of the torsion springs, at the moment, the electric cores of the two cables are placed in the gaps, after the first ends of the conductive clamping plates are loosened, the second ends of the conductive clamping plates and the bottom plate of the insulating shell clamp the two electric cores, the electric cores of the two cables are contacted with the conductive clamping plates to realize electrical connection, and finally the two half shells of the insulating shell are buckled. The mode of clamping and connecting the battery cell through the conductive clamping plate has simple structure and convenient operation; the insulating shell completely covers the conductive part electrically connected with the two cables, so that good insulating property is ensured, and accidents such as electric shock of personnel, short circuit of a circuit and the like are avoided; in addition, be located two half shells and can press from both sides the shell of tight cable to the income line mouth of seam department, electrically conductive splint can press from both sides the electric core of tight two cables, and every cable all receives two clamp forces promptly, so the cable receives to drag and is difficult for taking off after dragging.
Drawings
FIG. 1 is a schematic diagram of a cable clamp according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a cable clamp provided in accordance with an embodiment of the present invention;
fig. 3 is a schematic structural view of a conductive clamping plate and a conductive latch of the cable clamp according to the embodiment of the present invention.
In the figure:
1-an insulating housing; 11-a wire inlet; 12-elastic latch; 13-a first side wall; 14-a second side wall; 15-a base plate;
2-a connecting shaft;
3-a torsion spring;
4-a conductive splint;
5-conductive latch; 51-a first set of teeth; 52-a second set of teeth;
6-insulating sheath;
71-buckling; 72-card slot.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The two cables are quickly connected and are usually clamped by a jointing clamp, but the exposed conductive part of the jointing clamp in the prior art can bring potential safety hazard, and the speed of wiring and disconnecting can be influenced if the insulating adhesive tape is coated; furthermore, the cable is easily released from the clamp when it is subjected to a pulling force. To the above problem, this implementation provides a cable binding clip, belongs to quick wiring technical field, can be used for the maintenance process of transformer substation.
As shown in fig. 1 and fig. 2, the cable jointing clamp includes an insulating housing 1, a connecting shaft 2, a torsion spring 3 and a conductive clamping plate 4, the insulating housing 1 includes two half shells capable of being fastened, at least two wire inlets 11 are provided at the butt joint of the two half shells, the wire inlets 11 are used for clamping the outer sheath of the cable, two ends of the connecting shaft 2 are connected to the inner wall of the insulating housing 1, the connecting shaft 2 is sleeved with the torsion spring 3, the conductive clamping plate 4 is rotatably connected to the connecting shaft 2, two ends of the torsion spring 3 respectively abut against the first end of the conductive clamping plate 4 and the bottom plate 15 of the insulating housing 1, so that the second end of the conductive clamping plate 4 and the bottom plate 15 can clamp the electric core.
When the cable jointing clamp is used, the two half shells are opened firstly, then two cables to be electrically connected are clamped into the two wire inlets 11 respectively, the wire inlets 11 clamp the outer sheaths of the corresponding cables, then the first ends of the conductive clamping plates 4 are pressed, gaps are pulled between the second ends of the conductive clamping plates 4 and the bottom plate 15 of the insulating shell 1 under the action of the torsion springs 3, at the moment, electric cores of the two cables are placed in the gaps, after the first ends of the conductive clamping plates 4 are loosened, the second ends of the conductive clamping plates 4 and the bottom plate 15 of the insulating shell 1 clamp the two electric cores tightly, the electric cores of the two cables are contacted with the conductive clamping plates 4 to realize electric connection, and finally the two half shells of the insulating shell 1 are buckled. The mode of clamping and connecting the battery cell through the conductive clamping plate 4 has simple structure and convenient operation; the insulating shell 1 completely covers the conductive parts electrically connected with the two cables, so that good insulating property is ensured, and accidents such as electric shock of personnel, short circuit of a circuit and the like are avoided; in addition, the shell that the mouth 11 can press from both sides tight cable of income, electrically conductive splint 4 can press from both sides tight electric core of two cables, and every cable all receives two clamp forces promptly, so the cable receives to drag and is difficult for taking off after dragging.
Specifically, in the present embodiment, the insulating housing 1 is a rectangular parallelepiped housing, and both of the two half shells are box-shaped with one side open. Preferably, the wire inlet 11 is composed of two semicircular holes respectively disposed on the two half shells, and when the two half shells are fastened, the two opposite semicircular holes enclose the circular wire inlet 11 to clamp the outer sheath of the cable. Optionally, the insulating housing 1 is made of plastic material such as polyethylene or polypropylene, which has good insulating property and low cost. Further, the cable jointing clamp further comprises nuts, the nuts are connected to two ends of the connecting shaft 2 in a threaded mode and then fixed to the inner wall of the insulating shell 1 in a welding mode, and therefore fixing of the connecting shaft 2 is achieved. Preferably, as shown in fig. 1, one of the two half shells is provided with a buckle 71, and the other half shell is provided with a clamping groove 72, and the buckle 71 can be clamped in the clamping groove 72. The locking of two half shells can be realized to the cooperation of buckle 71 and draw-in groove 72, has certain elasticity because of the plastics material, so only need press the lateral wall around buckle 71 when opening half shell and can open two half shells.
In order to further improve the clamping effect of the cable clamp on the cable, as shown in fig. 1, a plurality of elastic latch teeth 12 are uniformly distributed on the wire inlet 11 along the circumferential direction, and the elastic latch teeth 12 extend along the radial direction of the wire inlet 11 and can elastically deform along the axial direction of the wire inlet 11. After the cable is placed into the wire inlet 11, the elastic latch 12 is pressed by the cable to deform towards the axial direction of the wire inlet 11, namely the axial direction of the cable, and is pressed on the outer sheath of the cable, on one hand, the deformed elastic latch 12 presses the outer sheath of the cable along the radial direction of the cable, on the other hand, the elastic latch 12 increases the contact area of the cable and the insulating shell 1, and when the cable is subjected to pulling force, the cable is not easy to loosen from the cable jointing clamp under the action of the pressing force of the elastic latch 12 along the radial direction and the friction force along the axial direction. Specifically, in the present embodiment, the width of the elastic latch 12 gradually decreases from the end connected to the wire inlet 11 to the free end thereof in the radial direction of the wire inlet 11, so that the cable can be easily inserted into the wire inlet 11.
Preferably, as shown in fig. 1, the plurality of wire inlets 11 are provided, and the plurality of wire inlets 11 have different apertures. When the specifications of cables to be connected are different, the cables extend into the insulating shell 1 from the wire inlet 11 with the corresponding aperture, so that the cables can be conveniently installed in the wire inlet 11 and can be clamped.
In some cases, the incoming directions of the two cables to be connected are different, and in order to connect the two cables into the insulating housing 1 and minimize twisting and bending of the cables, as shown in fig. 1, at least one wire inlet 11 is arranged on a first side wall 13 of the insulating housing 1 perpendicular to the connecting shaft 2, and at least one wire inlet 11 is arranged on a second side wall 14 of the insulating housing 1 perpendicular to the first side wall 13. Therefore, when two cables are connected, the cables can be connected to the wire inlet 11 selectively positioned on the side walls of the insulating shell 1 in different directions according to the incoming directions of the cables, so that the cables can be prevented from being twisted and bent, and the two cables connected into the jointing clamp can be prevented from being wound. Preferably, in this embodiment, the first sidewall 13 is provided with one wire inlet 11 for receiving a lead of a test instrument, an aperture of the wire inlet 11 is consistent with a specification of the lead of the test instrument, and the second sidewall 14 is provided with three wire inlets 11 with different apertures for receiving leads of lines to be tested with different specifications. Of course, in other embodiments, the number of the wire inlets 11 on the first side wall 13 and the second side wall 14 may be set according to actual requirements, and is not limited herein.
Preferably, as shown in fig. 2, the first end of the conductive splint 4 is covered with an insulating sheath 6. When the cable is connected, the insulating sheath 6 is contacted when an operator presses the first end of the conductive clamping plate 4, and if the cable is in a special condition that the power is not cut off, the operator cannot get an electric shock, so that the safety of the cable jointing clamp is improved.
In order to further increase the cable clamping effect of the cable clamp, as shown in fig. 2 and 3, the second end of the conductive clamping plate 4 is provided with a conductive latch 5 on the side facing the bottom plate 15 of the insulating housing 1. The conductive latch 5 can increase the clamping force of the conductive clamping plate 4 and the bottom plate 15 on the battery core part of the cable, so that the battery core part is not easy to loosen. Specifically, as shown in fig. 3, the conductive latch 5 includes a plurality of rows of first latch groups 51 disposed perpendicular to the connecting shaft 2, and the plurality of rows of first latch groups 51 can clamp the cable extending from the cable inlet 11 on the first side wall 13 to prevent the cable from loosening. Further, the conductive latch 5 further includes a plurality of rows of second latch groups 52, the second latch groups 52 are disposed between two adjacent rows of the first latch groups 51 and are parallel to the connecting shaft 2, and the plurality of rows of second latch groups 52 can clamp the cable extending from the cable inlet 11 on the second sidewall 14. The cooperation of the multiple rows of the first bayonet tooth sets 51 and the multiple rows of the second bayonet tooth sets 52 can improve the clamping effect of the whole cable jointing clamp on the cell parts of the cable.
Preferably, the bottom plate 15 of the insulating housing 1 is provided with a conductive latch 5, and the conductive latch 5 is disposed opposite to the second end of the conductive clamping plate 4. The conductive latch 5 on the bottom plate 15 of the insulating housing 1 can further improve the cable clamping effect of the cable clamp. It should be noted that the conductive latch 5 on the bottom plate 15 of the insulating housing 1 is disposed in the same manner and in the same direction as the conductive latch 5 on the conductive clamping plate 4, and the description thereof is omitted here.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the invention and are not to be construed as limitations of the embodiments of the present invention, but may be modified in various embodiments and applications by those skilled in the art according to the spirit of the present invention, and the content of the present description should not be construed as a limitation of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A cable clamp, comprising:
the insulation shell (1) comprises two half shells capable of being buckled, at least two wire inlets (11) are formed in the butt joint of the two half shells, and the wire inlets (11) are used for clamping the outer sheath of the cable;
the two ends of the connecting shaft (2) are connected to the inner wall of the insulating shell (1);
the torsion spring (3) is sleeved on the connecting shaft (2);
the conductive clamping plate (4) is rotatably connected to the connecting shaft (2), and two ends of the torsion spring (3) respectively abut against the first end of the conductive clamping plate (4) and the bottom plate (15) of the insulating shell (1), so that the second end of the conductive clamping plate (4) and the bottom plate (15) can clamp the electric core of the cable.
2. The cable clamp according to claim 1, characterized in that a plurality of elastic latches (12) are uniformly distributed on the wire inlet (11) along the circumferential direction, and the elastic latches (12) extend along the radial direction of the wire inlet (11) and can elastically deform along the axial direction of the wire inlet (11).
3. The cable clamp according to claim 1, wherein the wire inlet (11) is plural, and the plurality of wire inlets (11) have different apertures.
4. The cable clamp according to claim 1, characterized in that at least one of the wire inlets (11) is provided on a first side wall (13) of the insulating housing (1) perpendicular to the connecting shaft (2), and at least one of the wire inlets (11) is provided on a second side wall (14) of the insulating housing (1) perpendicular to the first side wall (13).
5. The cable clamp according to any one of claims 1 to 4, characterized in that the second end of the electrically conductive clamping plate (4) is provided with an electrically conductive latch (5) on the side facing the base plate (15).
6. The cable clamp according to claim 5, characterized in that the electrically conductive latch (5) comprises a plurality of rows of first latch teeth (51) arranged perpendicularly to the connecting shaft (2).
7. The cable clamp according to claim 6, characterized in that said conductive latches (5) further comprise a plurality of rows of second sets of latches (52), said second sets of latches (52) being arranged between two adjacent rows of first sets of latches (51) and parallel to said connection shaft (2).
8. The cable clamp according to any one of claims 1 to 4, characterized in that a conductive latch (5) is provided on the base plate (15) of the insulating housing (1), the conductive latch (5) being arranged opposite the second end of the conductive clamping plate (4).
9. The cable clamp according to any of claims 1 to 4, characterized in that the first end of the conductive clamping plate (4) is coated with an insulating sheath (6).
10. Cable clamp according to any one of claims 1 to 4, characterized in that one of the two half-shells is provided with a catch (71) and the other with a catch groove (72), the catch (71) being able to catch in the catch groove (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554103.8A CN111697358A (en) | 2020-06-17 | 2020-06-17 | Cable jointing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010554103.8A CN111697358A (en) | 2020-06-17 | 2020-06-17 | Cable jointing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111697358A true CN111697358A (en) | 2020-09-22 |
Family
ID=72481673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010554103.8A Pending CN111697358A (en) | 2020-06-17 | 2020-06-17 | Cable jointing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111697358A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903899A (en) * | 2021-01-13 | 2021-06-04 | 江西新吉电缆有限公司 | Environment-friendly termite-rat-proof waterproof flame-retardant fire-resistant control cable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203166102U (en) * | 2013-04-28 | 2013-08-28 | 宁波赛耐比光电有限公司 | Wire connection structure used in driving power source aging |
| CN203377391U (en) * | 2013-07-02 | 2014-01-01 | 广州番禺电缆集团有限公司 | Cable clamp with insulating shell |
| CN204391310U (en) * | 2014-12-24 | 2015-06-10 | 浙江大学 | A kind of fixing reliable terminating wire that connects presss from both sides |
-
2020
- 2020-06-17 CN CN202010554103.8A patent/CN111697358A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203166102U (en) * | 2013-04-28 | 2013-08-28 | 宁波赛耐比光电有限公司 | Wire connection structure used in driving power source aging |
| CN203377391U (en) * | 2013-07-02 | 2014-01-01 | 广州番禺电缆集团有限公司 | Cable clamp with insulating shell |
| CN204391310U (en) * | 2014-12-24 | 2015-06-10 | 浙江大学 | A kind of fixing reliable terminating wire that connects presss from both sides |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112903899A (en) * | 2021-01-13 | 2021-06-04 | 江西新吉电缆有限公司 | Environment-friendly termite-rat-proof waterproof flame-retardant fire-resistant control cable |
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Application publication date: 20200922 |