CN115085113B - External protection structure for underground high-voltage-resistant cable - Google Patents
External protection structure for underground high-voltage-resistant cable Download PDFInfo
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- CN115085113B CN115085113B CN202211009693.1A CN202211009693A CN115085113B CN 115085113 B CN115085113 B CN 115085113B CN 202211009693 A CN202211009693 A CN 202211009693A CN 115085113 B CN115085113 B CN 115085113B
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- groove
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- supporting block
- clamping
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
Abstract
The invention discloses an external protection structure for an underground high-voltage-resistant cable, which belongs to the technical field of underground cable protection. First partition mechanism includes the supporting shoe, and the supporting shoe is located inside the casing, and the supporting shoe can be coaxial rotation of casing relatively, and the surface of supporting shoe has a plurality of first holding tanks that hold the cable, and the direction of first holding tank and the direction of first passageway are corresponding, has the spacer between the adjacent first holding tank, and the laminating of at least partial surface of spacer and shells inner wall has the first fixture block that can with first passageway joint on the supporting shoe. The invention can be convenient for protecting the cables, and the cables cannot be wound mutually, so that the cables with the connectors cannot cause damage to other cables, and the potential safety hazard is reduced.
Description
Technical Field
The invention belongs to the technical field of underground cable protection, and particularly relates to an external protection structure for an underground high-voltage-resistant cable.
Background
The high-voltage cable comprises the following components from inside to outside: conductor, insulation, inner sheath, filler, outer insulation. Of course, when the cable is used underground, the shield member is required to resist the high-strength pressure on the ground while preventing damage by other external forces.
In the repair of cables, the handling of cable joints involves the following problems: after the insulating layer is covered at the joint, each cable is not convenient to be separately placed, the cable with the joint is still placed together with other cables, the cables are easy to be wound mutually, and the damage of other cables is caused, so that potential safety hazards are caused.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an external protection structure for an underground high-voltage-resistant cable, which has the advantage of separating a plurality of cables and solves the problems that the existing cable with a connector and other cables are placed together and are easy to intertwine, damage to other cables is caused, and potential safety hazards are increased.
The invention is realized in such a way that the external protection structure for the underground high-voltage-resistant cable comprises an accommodating mechanism and a first separating mechanism. The accommodating mechanism comprises a shell, wherein a first opening and a second opening are formed in two ends of the shell respectively, a first channel for the cable to pass in and out is formed in the shell, and the first channel is communicated with the first opening and the second opening.
The first separating mechanism comprises a supporting block, the supporting block is located inside the shell and can coaxially rotate relative to the shell, a plurality of first accommodating grooves for accommodating cables are formed in the outer surface of the supporting block, the direction of each first accommodating groove corresponds to the direction of the corresponding first channel, a spacing part is arranged between every two adjacent first accommodating grooves, at least part of the surface of each spacing part is attached to the inner wall of the shell, and a first clamping block capable of being clamped with the corresponding first channel is arranged on the supporting block.
Preferably, a second receiving groove penetrates through the supporting block, the second receiving groove is communicated with one of the first receiving grooves through a first communicating hole, and the first communicating hole is separated by an openable second separating mechanism.
Preferably, the second partition mechanism includes a receiving hole located at a central position of the support block, and the receiving hole is communicated with the first communication hole through a second communication hole; the accommodating hole is internally provided with a rotating shaft, the surface of the rotating shaft is wound with an inserting piece, the inserting piece part is positioned in the second communicating hole, and the inserting piece can be inserted into the first communicating hole; the side part of the first communication hole is provided with a slot for the insertion of the insertion piece.
Preferably, an inner toothed ring is annularly arranged in the accommodating hole, and the surface of the rotating shaft is provided with convex teeth capable of being meshed with the inner toothed ring; one side of the rotating shaft is fixedly connected with a first elastic sheet which can be meshed with the inner gear ring; one end of the rotating shaft is fixedly connected with an auxiliary rotating piece.
Preferably, the support block is axially movable relative to the housing; the edge of the first channel is provided with a first slide way with an opening size smaller than the inner size, the axial direction of the first slide way is the same as that of the shell, and the shape of the edges on two sides of the first clamping block is matched with that of the first slide way.
Preferably, the first slideway is provided with a third accommodating groove, and a sealing clamping piece is arranged in the third accommodating groove; the sealing clamping piece comprises a fluid bag, the fluid bag is positioned in the third accommodating groove, a guide rod is connected to the inner surface of one side, close to the third accommodating groove, of the fluid bag, the guide rod is fixed relative to the bottom wall of the third accommodating groove, a sleeve is fixedly connected to the inner surface of the other side of the fluid bag, the sleeve is sleeved on the guide rod in a sliding mode, a second clamping block is arranged on the outer surface of the fluid bag, and the second clamping block and the sleeve are fixed relatively; the first clamping block is provided with a clamping groove which can be clamped with the sleeve.
Preferably, the first slideway is a trapezoidal slideway; the third accommodating groove is formed in the bottom surface of the first slide way; the outer surface of the fluid bag is provided with a first sealing layer which can be attached to the first fixture block in an extrusion manner, and the first sealing layer is an elastic sealing layer; and a second sealing layer is arranged between the side wall of the first slideway and the first clamping block.
Preferably, an edge of the second fixture block has a first chamfer, and/or an edge of the clamping groove has a second chamfer.
Preferably, the supporting block is provided with a clamping part; the clamping part comprises an elastic pressing plate, the elastic pressing plate is in positive correspondence with the first accommodating groove, one side of the elastic pressing plate is connected to one side of the first accommodating groove, and a second channel for allowing a cable to enter the first accommodating groove is formed between the other side of the elastic pressing plate and the supporting block; one side of the elastic pressing plate, which is close to the first accommodating groove, is provided with a first arc-shaped attaching part attached to the cable.
Preferably, at least one of the first receiving grooves has a joint receiving groove therein.
Preferably, one of the spacers is provided with a second elastic sheet; the inner wall surface of the shell is provided with an annular groove, and positioning grooves which are arranged in an annular and equidistant mode are formed in the annular groove; the inner wall of the shell is provided with a second slide way which is axially arranged, the second slide way is communicated with the annular groove, and when the first clamping block moves in the first slide way, the second elastic sheet moves in the second slide way.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention is provided with the accommodating mechanism and the separating mechanism, wherein the accommodating mechanism is used for accommodating cables with joints and other cables, the separating mechanism is used for separating the cables in the accommodating mechanism, so that a plurality of cables cannot be mutually wound, the cables with the joints cannot cause damage to other cables, and the potential safety hazard is reduced.
2. According to the invention, through arrangement, the number of the cables accommodated in the second accommodating groove can be increased, the material and weight of the supporting block are reduced, and the cable accommodating box is convenient to transport after the weight is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a first view angle of an external protection structure for an underground high-voltage-resistant cable provided by an embodiment of the invention;
fig. 2 is a schematic structural diagram of a housing of an external protection structure for an underground high-voltage-resistant cable provided by an embodiment of the invention;
fig. 3 is a schematic structural diagram of a first separation mechanism of an external protection structure for underground high-voltage-resistant cables according to an embodiment of the invention;
fig. 4 is a schematic structural view of a second accommodating groove and a first communication hole of an external protection structure for an underground high-voltage-resistant cable provided by an embodiment of the invention;
fig. 5 is an enlarged structural schematic diagram of a portion a in fig. 4 provided in an embodiment of the present invention, mainly for illustrating a position of the second communication hole;
fig. 6 is a schematic structural view of a second partition mechanism part of an external protection structure for an underground high-voltage-resistant cable provided by an embodiment of the invention;
fig. 7 is a structural schematic diagram of a second perspective view of an external protective structure for an underground high-voltage-resistant cable provided by an embodiment of the invention;
fig. 8 is an enlarged schematic structural diagram of a portion B in fig. 7 according to an embodiment of the present invention, mainly illustrating the engagement between the protruding teeth, the first resilient piece and the inner toothed ring;
fig. 9 is a schematic front view of an external protection structure for underground high-voltage-resistant cables according to an embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view of the section C-C in FIG. 9 according to an embodiment of the present invention;
FIG. 11 is an enlarged schematic view of portion D of FIG. 10 according to an embodiment of the present invention;
FIG. 12 is an enlarged schematic view of section E of FIG. 10 according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of a fluid cell provided in accordance with an embodiment of the present invention;
FIG. 14 is an enlarged structural view of a portion G in FIG. 13 according to an embodiment of the present invention;
fig. 15 is a schematic structural view of the clamping part, the second resilient piece, and the joint receiving groove according to the embodiment of the present invention;
FIG. 16 is a schematic structural view of an annular groove and a positioning groove provided in an embodiment of the present invention;
fig. 17 is an enlarged structural schematic diagram of a portion F in fig. 10 according to an embodiment of the present invention.
In the figure: 100. an accommodating mechanism; 110. a housing; 111. a first opening; 112. a second opening; 113. a first channel; 200. a first separating mechanism; 210. a supporting block; 211. a first accommodating groove; 212. a spacer section; 220. a first clamping block; 213. a second accommodating groove; 214. a first communication hole; 230. a second separation mechanism; 215. a receiving hole; 216. a second communication hole; 231. a rotating shaft; 232. inserting sheets; 2141. inserting slots; 2151. an inner gear ring; 2311. a convex tooth; 2312. a first spring plate; 233. an auxiliary rotating member; 114. a first slideway; 130. a third accommodating groove; 120. sealing the clamping piece; 121. a fluid bladder; 140. a guide rod; 150. a sleeve; 160. a second fixture block; 221. a card slot; 122. a first sealing layer; 1141. a second sealing layer; 240. a clamping part; 241. an elastic pressing plate; 242. a second channel; 243. a first arc-shaped attaching portion; 244. a second arc-shaped attaching portion; 2111. a joint accommodating groove; 2121. a second elastic sheet; 115. an annular groove; 116. positioning a groove; 117. a second slideway.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.
The structure of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 is a schematic structural diagram of a first view of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention.
The external protection structure for the underground high-voltage-resistant cable comprises an accommodating mechanism 100 and a first separating mechanism 200, wherein the accommodating mechanism 100 is used for accommodating cables with joints and other cables, the first separating mechanism 200 is used for separating the cables in the accommodating mechanism 100, so that the cables cannot be wound around each other, the cables with the joints cannot cause damage to other cables, and potential safety hazards are reduced. The embodiment is specifically realized by the following modes:
fig. 2 is a schematic structural diagram of a housing of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention.
The accommodating mechanism 100 includes a housing 110, two ends of the housing 110 respectively have a first opening 111 and a second opening 112, the housing 110 has a first channel 113 for cables to enter and exit, and the first channel 113 is communicated with the first opening 111 and the second opening 112. In this embodiment, the cross-sectional shape of the inner wall of the housing 110 is circular, and particularly, the space inside the housing 110 is cylindrical. In a specific use, the cable may be put into the housing 110 through the first passage 113, and both ends of the cable extend out of the housing 110 through the first opening 111 and the second opening 112, respectively.
Fig. 3 is a schematic structural diagram of a first separating mechanism of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention.
The first separating mechanism 200 includes a supporting block 210, the supporting block 210 is located inside the housing 110, the supporting block 210 can rotate coaxially with respect to the housing 110, an outer surface of the supporting block 210 has a plurality of first receiving grooves 211 for receiving cables, a direction of the first receiving grooves 211 corresponds to a direction of the first channel 113, a spacing portion 212 is provided between adjacent first receiving grooves 211, at least a part of a surface of the spacing portion 212 is attached to an inner wall of the housing 110, and the supporting block 210 has a first latching block 220 that can be latched with the first channel 113. In the present embodiment, the supporting block 210 is a cylindrical block, and the first receiving slots 211 are distributed in an annular array relative to the axis of the supporting block 210. In order to facilitate the cable placement, the first channel 113 and the first latch 220 are rectangular and have corresponding dimensions.
In a specific use, the first channel 113 and one of the first receiving grooves 211 are aligned, the cable is put into the first receiving groove 211 inside the housing 110 from the first channel 113, and both sides of the cable are placed in the first opening 111 and the second opening 112. Each time one cable is inserted, the lower housing 110 or the supporting block 210 is rotated to align the first passage 113 with another first receiving groove 211, thereby inserting the other cable into the other first receiving groove 211. In this embodiment, each first receiving groove 211 receives one cable, and since the first receiving grooves 211 are not communicated with each other, different cables can be separated to prevent the cables from being intertwined, and the cables with the connectors cannot cause damage to other cables, thereby reducing potential safety hazards.
Since the housing 110 has the first passage 113 thereon, deformation is easily generated at the first passage 113 when the housing 110 is subjected to external pressure. In this embodiment, the first latch 220 is connected to the first channel 113 in a clamping manner, on one hand, the first latch 220 can support the first channel 113 to reduce the deformation degree of the housing 110 when being pressed, and on the other hand, the first latch 220 can close the first channel 113 to prevent the cable from separating from the housing 110 from the first channel 113. And, the first latch 220 is latched with the first channel 113 to prevent the relative rotation of the housing 110 and the supporting block 210, thereby fixing the position of the cable in the housing 110.
Further, at least a part of the surface of the spacer 212 is attached to the inner wall of the housing 110, the spacer 212 can separate the adjacent first receiving grooves 211 to prevent the cables from passing through the gap between the spacer 212 and the inner wall of the housing 110, so that the cables in different first receiving grooves 211 are not in contact with each other, and on the other hand, the spacer 212 can support the housing 110 to prevent the housing 110 from being deformed due to the extrusion of an external force.
Further, the first receiving grooves 211 with different sizes can be arranged during production according to actual use conditions, and can be used for receiving cables with different sizes.
Example 2
On the basis of the above embodiment, the following settings are also made:
fig. 4 is a schematic structural diagram of a second receiving groove 213 and a first communication hole 214 of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention.
A second receiving groove 213 is formed through the supporting block 210, the second receiving groove 213 is communicated with one of the first receiving grooves 211 through a first communicating hole 214, and the first communicating hole 214 is separated by an openable second partition mechanism 230.
Through this setting, second holding tank 213 multiplicable volume of holding the cable to reduce the material and the weight of supporting shoe 210, be convenient for transport after the weight reduction. In this embodiment, the second receiving grooves 213 and the first receiving grooves 211 are provided in equal numbers and in one-to-one correspondence. That is, the cables enter the corresponding second receiving grooves 213 through the first receiving grooves 211 and the first communication holes 214.
Specifically, referring to fig. 4, fig. 5, fig. 6, fig. 9, fig. 10 and fig. 11, fig. 4 is a schematic structural diagram of a first separating mechanism and a second separating mechanism of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention; fig. 5 is an enlarged schematic structural view of a portion a in fig. 4 provided in an embodiment of the present invention, mainly for illustrating the position of the second communication hole; fig. 6 is a schematic structural view of a second partition mechanism part of an external protection structure for underground high-voltage-resistant cables provided by the embodiment of the invention; fig. 9 is a front view structural schematic diagram of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the invention; FIG. 10 is a schematic cross-sectional view of the section C-C in FIG. 9 according to an embodiment of the present invention; fig. 11 is an enlarged schematic structural diagram of a portion D in fig. 10 according to an embodiment of the present invention.
The second partition mechanism 230 includes a receiving hole 215 at a central position of the supporting block 210, and the receiving hole 215 and the first communication hole 214 are communicated through a second communication hole 216; the accommodating hole 215 is provided with a rotating shaft 231, the surface of the rotating shaft 231 is wound with a plug-in sheet 232, the plug-in sheet 232 is partially positioned in the second communicating hole 216, and the plug-in sheet 232 can be inserted into the first communicating hole 214.
With this arrangement, the second partition mechanism 230 operates as follows in a specific use: the rotation shaft 231 is rotated to push the insertion piece 232 to move in the second communication hole 216, so that the insertion piece 232 is inserted into the first communication hole 214, thereby separating the first receiving groove 211 from the second receiving groove 213. Accordingly, when it is necessary to open the second partition mechanism 230, the rotation shaft 231 is rotated in the reverse direction, and the pulling piece 232 is received in the second communication hole 216, so that the cable can pass through the first communication hole 214. Further, referring to fig. 11, the first through hole 214 has a slot 2141 at a side thereof for the insertion of the tab 232. The insert 232 is inserted into the slot 2141, so that the insert 232 is more stable and is not easily bent and deformed when being pressed by a cable, and the separating force is increased.
The advantage of this configuration is that it is difficult to simultaneously separate or open a plurality of first communication holes 214 arranged circumferentially. If a partition is provided for each of the first communication holes 214, for example, a latch is provided for each of the first communication holes 214, each latch needs to be opened and closed separately to open the respective partition, which is inconvenient to operate. This setting makes a plurality of inserted sheets 232 remove simultaneously through rotating shaft 231, separates a plurality of first through-holes 214 respectively, the operation of being convenient for.
Further, referring to fig. 6, fig. 7 and fig. 8, fig. 7 is a schematic structural diagram of an external protection structure for an underground high-voltage-resistant cable according to a second perspective view of the embodiment of the present invention; fig. 8 is an enlarged structural schematic diagram of a portion B in fig. 4 according to an embodiment of the present invention, mainly for illustrating the engagement of the convex teeth 2311, the first elastic pieces 2312 and the inner toothed ring 2151.
An inner gear ring 2151 is annularly arranged in the accommodating hole 215, and a convex tooth 2311 capable of being meshed with the inner gear ring 2151 is arranged on the surface of the rotating shaft 231; a first elastic sheet 2312 which can be meshed with the inner gear ring 2151 is fixedly connected to one side of the rotating shaft 231; an auxiliary rotating member 233 is fixedly connected to one end of the rotating shaft 231 (see fig. 6). Specifically, the auxiliary rotating member 233 is a handle, which facilitates rotation of the rotating shaft 231.
When the rotating shaft 231 needs to be rotated in a specific use process, the rotating shaft 231 is pulled to enable the rotating shaft 231 to move along the axis, the first elastic piece 2312 moves between the teeth of the inner tooth ring 2151, and therefore when the rotating shaft 231 is rotated, the first elastic piece 2312 rotates between the teeth of the inner tooth ring 2151 to generate vibration sound. The angle of rotation of the rotation shaft 231 can be calculated by the emitted vibration sound. Therefore, the position of the insertion piece 232 can be grasped, the insertion piece 232 is prevented from staying at the first communication hole 214 to obstruct the cable from passing through, and the insertion piece 232 is prevented from being excessively accommodated in the second communication hole 216, so that the operation efficiency is reduced.
When the inserting sheet 232 is inserted into the inserting groove 2141, the rotating shaft 231 is pushed, and the convex teeth 2311 are inserted between the teeth of the inner tooth ring 2151, so that the rotation of the rotating shaft 231 is limited, the position of the inserting sheet 232 is fixed, and the separation effect is increased.
Example 3
On the basis of the above embodiment, the following settings are also made:
fig. 9 is a schematic front view of an external protection structure for an underground high-voltage-resistant cable according to an embodiment of the present invention; please refer to fig. 10, which is a schematic cross-sectional view of a portion C-C in fig. 9 according to an embodiment of the present invention; please refer to fig. 12, which is an enlarged structural diagram of part E in fig. 10 according to an embodiment of the present invention.
The support block 210 is axially movable relative to the housing 110;
the edge of the first channel 113 has a first slideway 114 with an opening size smaller than the inner size, the axial directions of the first slideway 114 and the housing 110 are the same, and the shape of the two side edges of the first block 220 is matched with the shape of the first slideway 114.
Through the arrangement, since the opening size of the first slideway 114 is smaller than the internal size, when the housing 110 is subjected to internal tension, the housing 110 can be prevented from opening along the first slideway 114 by the cooperation of the first latch 220 and the first slideway 114, so that the strength of the housing 110 is increased, and the cable is better protected.
Further, please refer to fig. 12, which is an enlarged structural diagram of a portion E in fig. 10 according to an embodiment of the present invention.
The first ramp 114 has a third receiving groove 130 therein, and the third receiving groove 130 has a sealing clamping member 120 disposed therein for clamping the first latch 220 and reducing a gap between the first latch 220 and the first ramp 114 by pressing.
Example 4
On the basis of the above embodiment, the following settings are also made:
referring to fig. 13 and 14, fig. 13 is a schematic structural diagram of a fluid bladder according to an embodiment of the present invention; fig. 14 is an enlarged schematic structural diagram of a portion G in fig. 13 according to an embodiment of the present invention.
The sealing clip member 120 includes a fluid bag 121, the fluid bag 121 is located in the third receiving groove 130, a guide rod 140 is connected to an inner surface of the fluid bag 121 on one side close to the third receiving groove 130, the guide rod 140 is fixed relative to a bottom wall of the third receiving groove 130, a sleeve 150 is fixedly connected to an inner surface of the fluid bag 121 on the other side, the sleeve 150 is slidably sleeved on the guide rod 140, a second clip 160 is provided on an outer surface of the fluid bag 121, and the second clip 160 and the sleeve 150 are fixed relative to each other; the first latch 220 has a latch groove 221 for latching with the sleeve 150.
In the present arrangement, after the first latch 220 slides to the predetermined position, the fluid bag 121 is filled with fluid, which may be gas, water or other liquid according to specific situations. After the fluid bladder 121 is inflated, a gap between the first clamping block 220 and the first sliding channel 114 can be filled, thereby performing a sealing function. Also, during the expansion of the fluid bladder 121, the sleeve 150 moves along the guide rod 140 to allow the second latch 160 to be latched into the latch groove 221, thereby latching the first latch 220 and preventing the first latch 220 from moving by itself.
It should be noted that, in a specific use, the first opening 111 and the second opening 112 of the housing 110 may be hermetically connected through a sealed pipe and an original protection pipe of a cable, so as to implement sealed protection. The only place where the housing 110 is not sealed is at the first passage 113, and therefore sealing at the first passage 113 is meaningful.
Further, referring to fig. 12, the first slide way 114 is a trapezoid slide way; the third receiving groove 130 is disposed on the bottom surface of the first sliding rail 114; the outer surface of the fluid bag 121 is provided with a first sealing layer 122 which can be in extrusion fit with the first fixture block 220, and the first sealing layer 122 is an elastic sealing layer; a second sealant 1141 is disposed between the sidewall of the first ramp 114 and the first latch 220.
In this embodiment, the first sealing layer 122 and the first stopper 220 are pressed to fit each other, so that a primary sealing can be performed. The fluid bag 121 presses the first clamping block 220 and the second sealing layer 1141 to be attached, so that secondary sealing is performed, and the sealing effect can be improved.
Further, an edge of the second latch 160 may have a first chamfer, and/or an edge of the latch groove 221 may have a second chamfer.
When the position of the second latch 160 and the position of the latch groove 221 are slightly deviated, the second latch 160 slides into the latch groove 221 along the edge of the latch groove 221 by the first chamfer. Or the edge of the second latch 160 slides into the latch slot 221 along the edge of the second chamfer, facilitating the insertion of the second latch 160 into the latch slot 221.
It should be noted that, the supporting block 210 can move axially, and there is an advantage that the clamping part 240 is arranged on the supporting block 210; the clamping part 240 can clamp the cable, increasing the effect of fixing the cable.
Example 5
On the basis of the above embodiment, the following settings are made:
fig. 15 is a schematic structural view of the clamping portion 240, the second resilient piece 2121, and the connector receiving slot 2111 according to an embodiment of the present invention.
The clamping part 240 comprises an elastic pressing plate 241, the elastic pressing plate 241 is in positive correspondence with the first accommodating groove 211, one side of the elastic pressing plate 241 is connected to one side of the first accommodating groove 211, and a second channel 242 for allowing a cable to enter the first accommodating groove 211 is formed between the other side of the elastic pressing plate 241 and the supporting block 210; one side of the elastic pressing plate 241 close to the first receiving groove 211 is provided with a first arc-shaped attaching portion 243 attached to a cable. When the cable is clamped, the first arc-shaped fitting portion 243 can increase a contact area with the cable, so that the cable can be clamped, and the cable is prevented from shaking.
Further, the other side surface of the elastic pressing plate 241 has a second arc fitting portion 244.
When the shell 110 is sleeved on the supporting block 210, the inner wall of the shell 110 is attached to the second arc-shaped attaching portion 244, and the inner wall of the shell 110 presses the elastic pressing plate 241, so that the elastic pressing plate 241 automatically clamps the cable.
Preferably, the surface of the first accommodating groove is provided with a static friction layer so as to facilitate clamping of the cable.
Example 6
Further, on the basis of the above embodiment, the following settings are made:
fig. 15 is a schematic structural view of the clamping portion 240, the second resilient piece 2121, and the connector receiving slot 2111 according to an embodiment of the present invention.
At least one of the first receiving grooves 211 has a joint receiving groove 2111 therein. Through this setting, put into joint holding groove 2111 with the joint of cable, when the cable received axial tension, joint holding groove 2111 can block the cable joint, prevents that the cable joint from breaking away from casing 110.
Example 7
On the basis of the above embodiment, the following settings are made:
referring to fig. 16 and 17, fig. 16 is a schematic structural view of an annular groove 115 and a positioning groove 116 according to an embodiment of the present invention; fig. 17 is an enlarged schematic structural diagram of a portion E in fig. 10 according to an embodiment of the present invention.
One of the spacers 212 has a second elastic sheet 2121 thereon; the inner wall surface of the shell 110 is provided with an annular groove 115, and the annular groove 115 is internally provided with annular positioning grooves 116 which are arranged at equal intervals; the inner wall of the housing 110 has a second slide way 117 axially disposed, the second slide way 117 is communicated with the annular groove 115, and when the first latch 220 moves in the first slide way 114, the second elastic sheet 2121 moves along the second slide way 117.
With the above arrangement, the second resilient piece 2121 can be inserted into the annular groove 115, and when the housing and the supporting block 210 rotate relatively, the second resilient piece 2121 jumps in the annular groove 115 to generate a vibration sound. By counting the number of sounds, the angle of relative rotation of the housing 110 and the supporting block 210 can be controlled to quickly align the first receiving groove 211 and the first passage 113. And, the second resilient piece 2121 moves to prevent the second resilient piece 2121 from being caught in the second slide 117, and obstructs the relative movement of the housing 110 and the supporting block 210.
Furthermore, the second resilient sheet 2121 is disposed at the edge of the first receiving groove 211, and when the second resilient sheet 2121 enters the first channel 113, the edge of the first channel 113 is attached to the second resilient sheet 2121, so that the first receiving groove 211 and the first channel 113 can be aligned automatically, and a cable can enter the first receiving groove 211 through the first channel 113.
It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. An external protective structure for underground high voltage resistant cables, comprising:
the accommodating mechanism (100) comprises a shell (110), two ends of the shell (110) are respectively provided with a first opening (111) and a second opening (112), the shell (110) is provided with a first channel (113) for a cable to enter and exit, and the first channel (113) is communicated with the first opening (111) and the second opening (112);
the first separating mechanism (200), the first separating mechanism (200) comprises a supporting block (210), the supporting block (210) is located inside the housing (110), the supporting block (210) can rotate coaxially relative to the housing (110), the outer surface of the supporting block (210) is provided with a plurality of first accommodating grooves (211) for accommodating cables, the direction of the first accommodating grooves (211) corresponds to the direction of the first channel (113), a spacing part (212) is arranged between the adjacent first accommodating grooves (211), at least part of the surface of the spacing part (212) is attached to the inner wall of the housing (110), and a first fixture block (220) capable of being clamped with the first channel (113) is arranged on the supporting block (210);
a second accommodating groove (213) is arranged in the supporting block (210) in a penetrating manner, the second accommodating groove (213) is communicated with one of the first accommodating grooves (211) through a first communication hole (214), and the first communication hole (214) is separated by an openable second separating mechanism (230);
the second partition mechanism (230) comprises a containing hole (215) positioned at the center of the supporting block (210), and the containing hole (215) is communicated with the first communication hole (214) through a second communication hole (216);
the accommodating hole (215) is provided with a rotating shaft (231), the surface of the rotating shaft (231) is wound with an inserting sheet (232), the inserting sheet (232) is partially positioned in the second communication hole (216), and the inserting sheet (232) can be inserted into the first communication hole (214);
the side of the first communication hole (214) is provided with a slot (2141) for the insertion sheet (232) to insert into.
2. An external protective structure for underground high voltage cables according to claim 1, wherein:
an inner gear ring (2151) is annularly arranged in the accommodating hole (215), and a convex tooth (2311) capable of being meshed with the inner gear ring (2151) is arranged on the surface of the rotating shaft (231);
one side of the rotating shaft (231) is fixedly connected with a first elastic sheet (2312) which can be meshed with the inner gear ring (2151);
one end of the rotating shaft (231) is fixedly connected with an auxiliary rotating piece (233).
3. An external protective structure for underground high voltage cables according to claim 2, characterized in that: the support block (210) is axially movable relative to the housing (110);
the edge of the first channel (113) is provided with a first slideway (114) with an opening size smaller than the inner size, the axial directions of the first slideway (114) and the shell (110) are the same, and the shapes of the edges on two sides of the first clamping block (220) are matched with the shape of the first slideway (114).
4. An external protective structure for underground high voltage cables according to claim 3, characterized in that:
a third accommodating groove (130) is formed in the first slideway (114), and a sealing clamping piece (120) is arranged in the third accommodating groove (130);
the sealing clamping piece (120) comprises a fluid bag (121), the fluid bag (121) is positioned in the third receiving groove (130), a guide rod (140) is connected to the inner surface of one side, close to the third receiving groove (130), of the fluid bag (121), the guide rod (140) is fixed relative to the bottom wall of the third receiving groove (130), a sleeve (150) is fixedly connected to the inner surface of the other side of the fluid bag (121), the sleeve (150) is sleeved on the guide rod (140) in a sliding mode, a second clamping block (160) is arranged on the outer surface of the fluid bag (121), and the second clamping block (160) and the sleeve (150) are fixed relative to each other;
the first clamping block (220) is provided with a clamping groove (221) which can be clamped with the sleeve (150).
5. An external protective structure for underground high voltage cables according to claim 4, characterized in that: the first slideway (114) is a trapezoidal slideway;
the third accommodating groove (130) is arranged on the bottom surface of the first slideway (114);
the outer surface of the fluid bag (121) is provided with a first sealing layer (122) which can be in extrusion fit with the first fixture block (220), and the first sealing layer (122) is an elastic sealing layer;
a second sealing layer (1141) is arranged between the side wall of the first slide way (114) and the first clamping block (220).
6. An external protective structure for underground high voltage cables according to claim 5, wherein: the edge of the second clamping block (160) is provided with a first chamfer, and/or the edge of the clamping groove (221) is provided with a second chamfer.
7. An external protective structure for underground high voltage cables according to claim 1, wherein: a clamping part (240) is arranged on the supporting block (210);
the clamping part (240) comprises an elastic pressing plate (241), the elastic pressing plate (241) is in positive correspondence with the first accommodating groove (211), one side of the elastic pressing plate (241) is connected to one side of the first accommodating groove (211), and a second channel (242) for a cable to enter the first accommodating groove (211) is formed between the other side of the elastic pressing plate (241) and the supporting block (210);
one side of the elastic pressure plate (241) close to the first accommodating groove (211) is provided with a first arc-shaped attaching part (243) attached to the cable.
8. An external protection structure for underground high voltage resistant cables according to claim 1, characterized in that: at least one of the first receiving grooves (211) has a joint receiving groove (2111) therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009693.1A CN115085113B (en) | 2022-08-23 | 2022-08-23 | External protection structure for underground high-voltage-resistant cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211009693.1A CN115085113B (en) | 2022-08-23 | 2022-08-23 | External protection structure for underground high-voltage-resistant cable |
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| CN115085113A CN115085113A (en) | 2022-09-20 |
| CN115085113B true CN115085113B (en) | 2022-11-08 |
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| CN202211009693.1A Active CN115085113B (en) | 2022-08-23 | 2022-08-23 | External protection structure for underground high-voltage-resistant cable |
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| WO2020027223A1 (en) * | 2018-07-31 | 2020-02-06 | 古河電気工業株式会社 | Cable, cable shape sensing system, sensing system, and method for sensing cable shape |
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| CN213185364U (en) * | 2020-10-19 | 2021-05-11 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Suspension type cable assembly device |
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| DE1216957B (en) * | 1963-08-20 | 1966-05-18 | Albert Theysohn | Cable duct |
| US6639152B2 (en) * | 2001-08-25 | 2003-10-28 | Cable Components Group, Llc | High performance support-separator for communications cable |
| TWI279055B (en) * | 2001-11-22 | 2007-04-11 | Sanki Eng Co Ltd | Construction method of information-capable conduit, and construction structure and construction member therefor |
| JP2010213393A (en) * | 2009-03-09 | 2010-09-24 | Chugoku Electric Power Co Inc:The | Joint structure |
| KR101692918B1 (en) * | 2016-08-22 | 2017-01-04 | 주식회사 신화에프이원 | Underground distribution line |
| CN207053094U (en) * | 2017-07-04 | 2018-02-27 | 青岛吉松电器科技有限公司 | A kind of cable cover(ing) |
| KR102115248B1 (en) * | 2018-04-24 | 2020-06-05 | 한국전력공사 | Apparatus for fixing cable |
| CN212969007U (en) * | 2020-08-06 | 2021-04-13 | 深圳市新源建设工程有限公司 | Cable is buried underground with preventing protection architecture in disorder |
| CN214850391U (en) * | 2021-06-10 | 2021-11-23 | 江苏国创电力科技有限公司 | Long-life power protection tube |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020027223A1 (en) * | 2018-07-31 | 2020-02-06 | 古河電気工業株式会社 | Cable, cable shape sensing system, sensing system, and method for sensing cable shape |
| CN212257002U (en) * | 2020-07-20 | 2020-12-29 | 河南虹峰电缆股份有限公司 | Fireproof heat-resistant cable |
| CN213185364U (en) * | 2020-10-19 | 2021-05-11 | 国网黑龙江省电力有限公司大兴安岭供电公司 | Suspension type cable assembly device |
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| CN115085113A (en) | 2022-09-20 |
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