CN112467664B - Foundation pit cable protection device for stretching in foundation pit - Google Patents
Foundation pit cable protection device for stretching in foundation pit Download PDFInfo
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- CN112467664B CN112467664B CN202011295222.2A CN202011295222A CN112467664B CN 112467664 B CN112467664 B CN 112467664B CN 202011295222 A CN202011295222 A CN 202011295222A CN 112467664 B CN112467664 B CN 112467664B
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- cable
- foundation pit
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- holes
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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
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/06—Suspensions for lines or cables along a separate supporting wire, e.g. S-hook
- H02G7/08—Members clamped to the supporting wire or to the line or cable
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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
Abstract
The utility model relates to a foundation pit cable protection device used for crossing in a foundation pit, belonging to the field of foundation pit cable protection, comprising a protection shell, wherein the protection shell is sleeved on the periphery of the foundation pit cable, the protection shell comprises a plurality of sections of sub-protection shells, the plurality of sections of sub-protection shells are detachably connected end to end and cross between the foundation pits, and the sub-protection shells at two ends of the protection shell are fixed on the pit edge of the foundation pit; suspension cable suspension device, suspension cable suspension device span between the foundation ditch and be located protecting sheathing's top, and suspension cable suspension device is connected with protecting sheathing for tractive protecting sheathing can reduce protecting sheathing's volume through above-mentioned scheme, can also reduce protecting sheathing flagging on the basis of the installation of being convenient for, reduction manual work input, reduce the danger that the foundation ditch cable was pulled apart.
Description
Technical Field
The invention relates to the field of protection of cables in a foundation pit, in particular to a foundation pit cable protection device stretching across the foundation pit.
Background
In the engineering construction process, due to a plurality of reasons such as construction period, construction cost and civil life, pipelines which can not be moved and changed often need to cross a foundation pit; in addition, in the engineering construction process, some buried cables are exposed in the process of digging a foundation pit, and the cables are suspended in the foundation pit in a crossing mode. In order to protect the cable to span and avoid appearing the cable flagging seriously in the foundation ditch, avoid simultaneously in the work progress probably because other equipment touch the phenomenon of tearing the cable apart when toppling over even, prior art generally adopts the sleeve cover in the periphery of cable, simultaneously with the pre-buried two holes edge departments at the foundation ditch of telescopic both ends, in order to prevent that the sleeve from bearing great holding power because of the great sleeve both ends that lead to of horizontal span, prior art generally sets up the support column near the sleeve middle part in the foundation ditch, support the sleeve. However, in the above manner, the transverse span of the sleeve is large, so that the operation personnel is troublesome and laboursome when installing the sleeve, and the transverse span of the sleeve is large, so that the middle part of the sleeve is prone to seriously drooping downwards, which causes the original cable with small stress to bear the pressure of the sleeve and accelerates the damage of the cable; moreover, the support columns are not economical to arrange, for example, the space on two sides is limited, the support columns can occupy the space in the foundation pit, and the construction of other facilities in the foundation pit can be influenced.
Disclosure of Invention
This application is in order to solve present unsettled cable flagging serious on the foundation ditch or between the foundation ditch, simultaneously because unsettled touches the very easy problem of tearing the foundation ditch cable apart at other equipment between the foundation ditch, and prior art is generally through covering a sleeve in the foundation ditch cable periphery, utilize the support column to solve the sleeve and be close to the flagging serious problem of middle part, but whole sleeve installation is got up and is wasted time and energy very much, need many people to operate jointly, the human input has been increased, and simultaneously, the support column can occupy the space in the foundation ditch, influence the construction of other facilities, how to realize promptly that the protection device to the foundation ditch cable can also reduce protection device's flagging on the basis of being convenient for the installation, this application designs one kind and is used for striding the foundation ditch cable protection device in the foundation ditch and can solve above-mentioned problem, it specifically does:
an excavation cable protection device for spanning within an excavation, comprising:
the protective shell is sleeved on the periphery of the foundation pit cable and comprises a plurality of sections of sub protective shells, the plurality of sections of sub protective shells are detachably connected end to end and span between the foundation pits, and the sub protective shells positioned at two ends of the protective shell are fixed on the pit edge of the foundation pit;
and the suspension cable hanging device spans between the foundation pits and is positioned above the protective shell, and the suspension cable hanging device is connected with the protective shell and used for drawing the protective shell.
Preferably, each sub-protective casing comprises:
each fixing plate is provided with an open through hole extending towards one side of the fixing plate, and the open through holes are used for the foundation pit cables to pass through;
a plurality of connecting rods, a plurality of connecting rods can be dismantled and connect between two fixed plates, and a plurality of connecting rods set up along the circumference interval of through-hole.
Preferably, one of the fixing plates of the sub-protection shell is provided with a connecting hole, the other fixing plate is in threaded connection with an L-shaped connecting piece, and the connecting rod can be inserted into the connecting hole of the other sub-protection shell to realize the connection of the sub-protection shells.
Preferably, the fixing plate provided with the connecting hole is provided with a locking groove on the end surface close to the other fixing plate, and the locking groove is perpendicular to the connecting hole.
Preferably, at least two connecting holes and at least two L-shaped connecting pieces are arranged, and the through hole is positioned on a perpendicular bisector of a connecting line between the two connecting holes.
Preferably, the connecting rod is a rigid plastic rod.
Preferably, the both ends of connecting rod are equipped with the connecting seat respectively, are equipped with the screw hole on connecting seat and two fixed plates respectively, and the screw hole passes the screw hole through the screw connecting rod and fixed plate through the screw and realizes being connected of connecting rod and fixed plate in the screw hole.
Preferably, two hanging holes are respectively formed in the two fixing plates of each sub-protection shell, the two hanging holes are located on two sides of the fixing plate corresponding to the open through holes, a stud is connected in the hanging hole between the fixing plates of the two adjacent connecting seats 12, the stud penetrates through the hanging hole to connect the two sub-protection shells, and the stud is connected with the suspension cable hanging device.
Preferably, the suspension cable hanging device comprises:
two support frames arranged at the pit edge of the foundation pit;
the main cable is connected between the two support frames;
the cable clamps are respectively arranged on the main cable and the stud;
and the suspension ropes are connected between the cable clamp arranged on the main cable and the cable clamp arranged on the stud.
Preferably, the number of the main cables is two, the two main cables are arranged in parallel, and the two main cables are correspondingly connected with the studs in the two lifting holes in the fixing plate through the lifting cables.
According to the invention, the protective shell is arranged into a multi-section structure with the head and the tail detachably connected, the convenient installation of the protective shell is realized on the basis of reducing the sag of the protective shell by using the suspension cable hanging device, the weight of the whole operation can be decomposed by the multi-section connection mode, the volume of the protective shell is reduced, the operation of operators is facilitated, the installation can be carried out by one person or two persons, and the manual investment is reduced.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the enlarged view at I in FIG. 1;
FIG. 3 is a schematic view of the cable clamp of FIG. 2 with the cable clamp removed;
fig. 4 is a right side view of an enlarged view of I of fig. 1 with the cord clip removed.
In the figure, 1, a protective shell, 101, a sub protective shell, 101a, a fixing plate, 101b, a connecting rod, 2, a suspension cable hanging device, 201, a support frame, 202, a main cable, 203, a cable clamp, 204, a sling, 3, a foundation pit cable, 4, an 'L' -shaped connecting piece, 5, a nut, 6, a foundation pit edge, 7, a locking groove, 8, an open through hole, 9, a stud, 10, a connecting hole, 11, a hanging hole, 12 and a connecting seat.
Detailed Description
In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
It should be noted that, the present application is applicable to the working condition that the foundation pit has a span of 10-20m, and is basically not considered for the foundation pit with a span exceeding 20 m.
1-4, an excavation cable protection device for spanning an excavation includes a protective housing 1 and a suspension cable hanger 2.
The protective casing 1 is sleeved on the periphery of a foundation pit cable 3, wherein the protective casing 1 is formed by a plurality of sections of sub protective casings 101, the plurality of sections of sub protective casings 101 are detachably connected end to end, the protective casing 1 formed by the plurality of sections of sub protective casings 101 integrally spans between foundation pits and is used for protecting the foundation pit cable 3, in the plurality of sections of sub protective casings 101, the sub protective casings 101 at two ends of the protective casing 1 are fixed on the pit edge of the foundation pit, the sub protective casings 101 at two ends of the protective casing 1 are fixed on the pit edge 6 of the foundation pit by adopting a connection frame pre-embedded at the pit edge 6 of the foundation pit through bolts, so that the protective casing 1 formed by the plurality of sections of sub protective casings 101 is integrally fixed and spans between the foundation pits, and in order to prevent the protective casing 1 from seriously drooping down when spanning between the foundation pits, on the premise, the suspension cable hanging device 2 is connected with the protective casing 1, simultaneously span suspension cable suspension device 2 between the foundation ditch and be located protecting sheathing 1's top, can play the effect of hanging and drawing to protecting sheathing 1 from this, prevent protecting sheathing 1, especially protecting sheathing 1 prevents its flagging seriously near the position in the middle of, thereby just so can improve protecting sheathing 1's installation convenience through setting up protecting sheathing 1 into the form of the sub-protecting sheathing 101 of multistage under the prerequisite that reduces protecting sheathing 1 and hang down, the sub-protecting sheathing 101 of multistage has decomposed the weight with whole protecting sheathing 1 integral erection, alleviate operating personnel's labour, single person just can realize the purpose with whole protecting sheathing 1 installation like this, save artifical input cost.
Further, as for the structure of each segment of the sub-protective casing 101, specifically, the structure includes two fixing plates 101a and a plurality of connecting rods 101b vertically connected between the two fixing plates 101a, the plurality of connecting rods 101b are fixed between the fixing plates 101a, so that the weight of each segment of the sub-protective casing 101 is reduced on the basis that the internal foundation pit cable 3 can be protected, and the sagging degree of the formed whole protective casing 1 is reduced.
Each fixing plate 101a is provided with an open through hole 8 extending upwards, the open through holes 8 are used for the foundation pit cables 3 to pass through, the open through holes 8 extend to the upper ends of the fixing plates 101a, when each sub-protection shell 101 is installed, the foundation pit cables 3 only need to enter the fixing plates 101a from the open through holes 8, the open through holes 8 can meet the requirements of the periphery of the foundation pit cables 3, the fixing plates 101a can protect the foundation pit cables 3, meanwhile, the open through holes 8 extend towards the upper ends of the fixing plates 101a, the supporting of the fixing plates 101a on the foundation pit cables 3 is not affected, and the purpose of reducing the sagging of the foundation pit cables 3 is achieved.
The connecting rods 101b vertically arranged between the two fixing plates 101a are detachably connected with the two fixing plates 101a, so that an operator can independently select the length of the required connecting rod 101b, the length of the connecting rod 101b also determines the distance between the two fixing plates 101a, and the connecting rod 101b with a proper length is selected according to the working condition of site construction and the span of a foundation pit, so that the connecting rod 101b can be prevented from increasing the number of required sub-protective shells 101 due to over short, the installation time is prolonged, the connecting rod 101b can be prevented from being troublesome to install due to over long, and the operation difficulty is increased; moreover, the connecting rods 101b are arranged at intervals along the circumferential direction of the through hole, so that the foundation pit cable 3 can be surrounded by the connecting rods 101b along the circumferential direction of the through hole when seen along the length direction of the connecting rods 101b, and the foundation pit cable 3 can be protected by the connecting rods 101b in any direction, so that the phenomenon that the foundation pit cable 3 is seriously sagged and the foundation pit cable 3 is broken when other equipment touches or topples over can be avoided.
For the form of the detachable connection between the plurality of sub-protective housings 101 from end to end, a connection hole 10 is further provided on one fixing plate 101a of the sub-protective housings 101, the connection hole 10 is a strip-shaped hole, and an "L" type connection member 4 is screwed on the other fixing plate 101a, wherein the screw connection is specifically that a unthreaded hole is provided on the fixing plate 101a, one end of the "L" type connection member 4 has an external thread, and one end of the "L" type connection member 4 having the external thread passes through the unthreaded hole and is screwed with a nut 5, when the connection is performed, the "L" type connection member 4 is pre-fixed on the fixing plate 101a, one end of the "L" type connection member 4 far away from the external thread is inserted into the connection hole 10 of the fixing plate 101a of the other sub-protective housing 101, and then the "L" type connection member 4 is rotated to make the "L" type connection member 4 staggered with the connection hole 10, pulling the L-shaped connecting piece 4, tightly attaching one end of the L-shaped connecting piece 4, which is far away from the external thread, to the fixing plate 101a of the other sub-protective shell 101, and screwing the nut 5 to tightly attach the two fixing plates 101a of the two sub-protective shells 101, so that the sub-protective shells 101 are connected and fixed; by providing the "L" shaped connecting member 4, not only the sub-protective housings 101 can be connected, but also a quick connection between the sub-protective housings 101 can be realized by the shape of the connecting member.
Furthermore, on the basis of the connection between the sub-protective housings 101 through the "L" type connecting member 4, in order to prevent the "L" type connecting member 4 from rotating a small amount during the connection process, which may cause the dislocation between the sub-protective housings 101, a locking groove 7 is provided on the fixing plate 101a provided with the connecting hole 10, and at the same time, a surface of the fixing plate 101a, which is in close contact with the "L" type connecting member 4, is provided with a locking groove 7, after the end of the "L" type connecting member 4, which is far from the external thread, is inserted into the connecting hole 10 of the fixing plate 101a of another sub-protective housing 101, when the "L" type connecting member 4 is rotated, the "L" type connecting member 4 is rotated into the locking groove 7, then the "L" type connecting member 4 is rotated, and the nut 5 is screwed to realize the connection between the two sub-protective housings 101, in addition, the locking groove 7 is vertically provided with the connecting hole 10, and further, when the "L" type connecting member 4 is rotated, the "L" type connecting member 4 needs to rotate by 90 degrees, the vertical arrangement can increase the contact surface between the L-shaped connecting piece 4 and the locking groove 7, and improve the locking strength.
Further, in order to ensure the stress balance of the "L" shaped connecting member 4 in the connector protective housing 101, in this embodiment, at least two connecting holes 10 and at least two "L" shaped connecting members 4 are respectively provided, the through hole is located on the perpendicular bisector of the connecting line between the two connecting holes 10, and the two "L" shaped connecting members 4 can resolve the stress between the single locking groove 7 and the "L" shaped connecting member 4, thereby reducing the possibility that the single "L" shaped connecting member 4 is easily broken.
Further, as for the detachable connection between the connecting rod 101b and the fixing plate 101a, the two ends of the connecting rod 101b are respectively provided with the connecting seat 12, the connecting seat 12 and the two fixing plates 101a are respectively provided with a threaded hole, and the connecting rod 101b is connected with the fixing plate 101a by screwing the threaded holes on the connecting seat 12 and the fixing plates 101a with screws; when a different length of the connecting rod 101b is required, the different length of the connecting rod 101b can be replaced by removing the connecting rod 101 b.
Furthermore, in order to further reduce the weight of the whole protective housing 1 and the sagging degree of the protective housing 1, the connecting rod 101b is a rigid plastic rod, and the rigid plastic is made of thermoplastic plastics made of polycarbonate and polypropylene fine alloy, so that the rigid plastic rod not only has high hardness, but also has high impact strength, and is more suitable for being used under the working conditions of the application.
Further, in order to realize the connection of the suspension cable hanging device 2 with the protective casing 1 and the further connection between the sub protective casings 101, two hanging holes 11 are respectively arranged on the two fixing plates 101a of each sub protective casing 101, the two hanging holes 11 are positioned at the two sides of the corresponding open through hole 8 of the fixing plate 101a, a stud 9 is connected in the hanging hole 11 between the fixing plates 101a of the two adjacent connecting seats 12, the stud 9 passes through the hanging hole 11 to connect the two sub protective casings 101, and after the stud 9 and the suspension cable hanging device 2 are connected through the two hanging holes 11, the two ends are screwed and fixedly connected through a nut 5, meanwhile, the suspension cable hanging device 2 is also connected with the stud 9 at the position, the suspension cable hanging device 2 draws the position, because the most probable sagging occurs between the multiple sections of the sub protective casings 101 or the position where the slippage occurs between the two sub protective casings is at the connection position, this enables not only the suspension of the protective enclosure 1 but also the further connection and fixation between the two sub-protective enclosures 101 while suspended.
Further, the structure of the suspension cable hanging device 2 specifically comprises two support frames 201 arranged on the foundation pit edge 6, a main cable 202, a plurality of cable clamps 203 and a plurality of suspension cables 204. The main cable 202 is connected between the two support frames 201, the cable clamps 203 are respectively arranged on the main cable 202 and the studs 9, the number of the cable clamps 203 arranged on the main cable 202 is the same as that of the cable clamps 203 arranged on the studs 9, the cable clamps 203 arranged on the main cable 202 are vertically aligned with the cable clamps 203 arranged on the studs 9, and each sling 204 is connected between the two vertically aligned cable clamps 203.
The main cable 202, the clip 203, and the sling 204 of the suspension cable hanger 2 according to the present invention are similar in structure to those of a main cable, a clip, and a sling of a conventional suspension bridge, and therefore, the structure of the clip 203 and the sling 204 will not be described in detail in the present invention.
Furthermore, in order to prevent the foundation pit cable 3 from being torn by the sling 204 when the sling 204 suspends the foundation pit cable 3 ineffectively, two main cables 202 are provided, the two main cables 202 are arranged in parallel, and the two main cables 202 are correspondingly connected with the studs 9 in the two hanging holes 11 on the fixing plate 101a through the sling 204 and the cable clamp 203, so that the sling 204 cannot interfere with the foundation pit cable 3 after being broken, and the foundation pit cable 3 is prevented from being torn therewith.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (8)
1. An excavation cable protection device for spanning within an excavation, comprising:
the protective shell is sleeved on the periphery of the foundation pit cable and comprises a plurality of sections of sub protective shells, each sub protective shell comprises two fixing plates and a plurality of connecting rods, each fixing plate is provided with an open through hole extending towards one side of the fixing plate, the open through holes are used for the foundation pit cables to pass through, a plurality of connecting rods are detachably connected between the two fixing plates and are arranged at intervals along the circumferential direction of the through holes, one of the fixing plates of the sub-protection shell is provided with a connecting hole, the other fixing plate is in threaded connection with an L-shaped connecting piece, the connecting rod can be inserted into the connecting hole of the other sub-protective shell to realize the connection of the sub-protective shells, a plurality of sections of the sub-protective shells are detachably connected end to end and span between foundation pits, and the sub-protective shells positioned at two ends of the protective shells are fixed on the pit edge of the foundation pit;
and the suspension cable hanging device spans between the foundation pits and is positioned above the protective shell, and the suspension cable hanging device is connected with the protective shell and used for drawing the protective shell.
2. A foundation pit cable protection device for spanning in a foundation pit according to claim 1, wherein the fixing plate provided with the connecting hole is provided with a locking groove on an end face thereof adjacent to the other fixing plate, the locking groove being provided perpendicular to the connecting hole.
3. The foundation pit cable protection device for spanning in a foundation pit according to claim 1, wherein the connecting holes and the L-shaped connecting pieces are at least two, and the through hole is positioned on a vertical bisector of a connecting line between the two connecting holes.
4. An excavation cable protection device for spanning within an excavation according to claim 1, wherein the connecting rod is a rigid plastic rod.
5. The foundation pit cable protection device for spanning in a foundation pit according to claim 1, wherein the connecting rod is provided with a connecting seat at each end, the connecting seat and the two fixing plates are respectively provided with a threaded hole, and the connecting rod and the fixing plates are connected through connecting screws in the threaded holes.
6. The foundation pit cable protection device for spanning in a foundation pit according to claim 1, wherein two hanging holes are respectively arranged on two fixing plates on the sub-protection shells, the two hanging holes are positioned on two sides of the corresponding open through holes of the fixing plates, a stud is connected in the hanging hole between the fixing plates of two adjacent sub-protection shells, the stud penetrates through the hanging hole to connect the two sub-protection shells, and the stud is connected with the suspension cable hanging device.
7. An excavation cable protection device for spanning within an excavation according to claim 6, wherein the suspension cable suspension device comprises:
two support frames arranged at the pit edge of the foundation pit;
the main cable is connected between the two support frames;
the cable clamps are respectively arranged on the main cable and the stud;
and each sling is connected between a cable clamp arranged on the main cable and a cable clamp arranged on the stud.
8. The foundation pit cable protection device for spanning in the foundation pit according to claim 7, wherein the main cables are arranged in two, the two main cables are arranged in parallel, and the two main cables are correspondingly connected with studs in two hanging holes in the fixing plate through the suspension cables.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295222.2A CN112467664B (en) | 2020-11-18 | 2020-11-18 | Foundation pit cable protection device for stretching in foundation pit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295222.2A CN112467664B (en) | 2020-11-18 | 2020-11-18 | Foundation pit cable protection device for stretching in foundation pit |
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| CN112467664A CN112467664A (en) | 2021-03-09 |
| CN112467664B true CN112467664B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011295222.2A Active CN112467664B (en) | 2020-11-18 | 2020-11-18 | Foundation pit cable protection device for stretching in foundation pit |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115051303A (en) * | 2022-07-05 | 2022-09-13 | 江西省城建集团有限公司 | Large-scale foundation ditch spanes cable and supports protector |
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| CN211720231U (en) * | 2020-04-26 | 2020-10-20 | 谢明霞 | Electrical engineering cable protection device |
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| JP2003189437A (en) * | 2001-12-18 | 2003-07-04 | Furukawa Electric Co Ltd:The | Cable trough, clamp thereof and clamping method |
| CN104184097A (en) * | 2014-09-02 | 2014-12-03 | 广东南方电信规划咨询设计院有限公司 | Non-migration suspension protection system and method for communication pipes and cables |
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