CN113964751A - Cable protection pipe, connecting cover and two-end locking device thereof - Google Patents
Cable protection pipe, connecting cover and two-end locking device thereof Download PDFInfo
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- CN113964751A CN113964751A CN202111259538.0A CN202111259538A CN113964751A CN 113964751 A CN113964751 A CN 113964751A CN 202111259538 A CN202111259538 A CN 202111259538A CN 113964751 A CN113964751 A CN 113964751A
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- protection
- locking
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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
- H02G3/0462—Tubings, i.e. having a closed section
- H02G3/0481—Tubings, i.e. having a closed section with a circular cross-section
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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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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a cable protection pipe, a connecting cover and two-end locking devices thereof, wherein the protection pipe is divided into two layers, and a grating plate is arranged between an inner liner layer and a shell, so that the protection capability of the protection pipe is improved, and the quality of the protection pipe is reduced; the protection tubes are matched with each other in pairs for use, so that the installation is convenient, the protection tubes on two sides have completely consistent structures, and the production is convenient; the central angle of the lining pipe of the protection pipe is 180 degrees, and the lining pipe cannot deform during installation, so that the service life of the protection pipe is prolonged; the connecting cover is simple in structure and quick to install; the friction pad on the inner side of the locking device can be tightly contacted with the cable and is fixedly connected with the cable on the premise of not pressing the cable; the locking device at two ends is flexible to use, and the buckle can be extruded by rotating the pull ring after the pull ring of the locking device is pulled out, so that the locking device can be disassembled without using special tools.
Description
Technical Field
The invention belongs to the technical field of cable protection, and particularly relates to a cable protection pipe, a connecting cover and two-end locking devices thereof.
Background
High-voltage wires erected at high altitude are generally bare wires, such as common 10-35 kv high-voltage cables, and under normal conditions, the safety distance to the ground and other buildings and plants is considered during aerial laying, but branches of large trees or other plants near the high-voltage wires may be close to the high-voltage bare wires along with continuous growth, break through the safety distance and even touch the high-voltage wires, so that electric shock accidents occur. In addition, for maintenance and construction of the overhead line, operators or operating tools can be close to the exposed high-voltage line, and potential safety hazards exist.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention is directed to a cable protection tube, a connection cover and a locking device at two ends thereof.
The technical scheme adopted by the invention is as follows:
a cable protection pipe, a connecting cover and two-end locking devices thereof comprise a plurality of protection pipes, a plurality of connecting covers and two locking devices, wherein the cross section of each protection pipe is semicircular, a plurality of grid plates are arranged on one side, close to the circle center of the cross section of each protection pipe, a lining pipe is fixedly arranged on one side, away from each protection pipe, of each grid plate, two ends of each protection pipe in the length direction of the protection pipe are respectively provided with a limiting hole, and each limiting hole penetrates through each protection pipe; the connecting cover is used for connecting a plurality of the protection tubes, two limiting pins are fixedly arranged on the connecting cover, and the limiting pins are matched with the limiting holes for use; the locking device comprises an upper locking shell and a lower locking shell, the upper locking shell is hinged to the lower locking shell through a rotating pin, and one side, close to each other, of the upper locking shell and the lower locking shell is in a semicircular groove shape.
By adopting the technical scheme, the two half specifications of the protection pipes are completely consistent, the connection cover can allow small-range deformation, the connection cover is clamped on the protection pipes when being installed, the connection cover can fix the two protection pipes on the same side, and the connection cover which exceeds one half can wrap one part of the two protection pipes on the opposite side, so that the protection pipes on the opposite side can not generate shearing stress on the cross section of the cable at the joint, and the damage to the cable possibly caused is reduced; the two-end locking device can fix the protection tube, so that the protection tube and the cable are prevented from sliding.
Preferably, the cross section of the lining pipe is semicircular, the circle center of the cross section of the lining pipe is overlapped with that of the cross section of the protection pipe, the end of the cross section of the lining pipe and the end of the cross section of the protection pipe are located on the same plane, one side of the protection pipe is provided with a sliding groove, the sliding groove is located between the protection pipe and the lining pipe, the cross section of the sliding groove is arc-shaped, one side, away from the sliding groove, of the protection pipe is provided with an inserting strip, and the inserting strip is fixedly arranged on one of the grid plates.
By adopting the technical scheme, the protection tube is divided into two layers, the grating plate is arranged between the inner liner and the shell, the protection capability of the protection tube is improved, the quality of the protection tube is reduced, and the installation is more convenient.
Preferably, the cross section of the slip is arc-shaped, the central angle of the cross section of the sliding groove is concentric with and equal to the central angle of the cross section of the slip, the thickness of the sliding groove is equal to that of the slip, and the slip and the sliding groove on the two protection tubes are respectively matched with each other to form a cylinder.
By adopting the technical scheme, the protection tubes need to be matched with each other for use, the two protection tube structures needing to be matched for use are completely consistent, the production cost is convenient to save, and only one angle needs to be rotated when the installation is carried out, so that the situation that two male heads or two female heads cannot be installed cannot be caused.
Preferably, in a cross section of one of the protection tubes, a distance between an end of the insert away from the protection tube and an end of the lining tube away from the insert is greater than a diameter of the lining tube.
By adopting the technical scheme, the inner lining pipe of the protection pipe is not deformed in the process of pressing close to the cable, and the service life of the protection pipe is prolonged.
Preferably, a light-emitting sleeve is arranged on one side, away from the lining tube, of the protection tube, and the light-emitting sleeve is located between the two limiting holes.
By adopting the technical scheme, the luminous sleeve can independently emit light, and the identification degree of the protective tube is improved.
Preferably, the cross section of the connecting cover is in a sector ring shape with a central angle larger than 180 degrees, and the diameter of the inner side of the cross section of the connecting cover is equal to the diameter of the outer side of the cross section of the protection pipe.
By adopting the technical scheme, the connecting cover can be simultaneously wrapped by the four protective pipes.
Preferably, one end of the limiting pin is in a mushroom head shape, one end of the limiting pin, which is far away from the connecting cover, is provided with a groove, and the diameter of the mushroom head of the limiting pin is larger than that of the limiting hole.
By adopting the technical scheme, the connecting cover is tightly attached to the protection pipe after being installed.
Preferably, the two limiting pins are arranged along the length direction of the connecting cover, and the distance between the two limiting pins is equal to twice the distance from the limiting hole to one end of the protection pipe.
By adopting the technical scheme, no gap exists between the two protection pipes connected by the connecting cover, and the target cable is protected without a gap.
Preferably, a plurality of friction pads are arranged on one side, close to the locking lower shell, of the locking upper shell, a rotating piece is hinged to one end of the locking upper shell through a connecting pin, a buckle is fixedly arranged at one end of the rotating piece, a fixing piece is arranged at one end of the locking lower shell, a square groove is formed in one end of the fixing piece, the rotating piece is matched with the fixing piece, and the buckle is matched with the square groove.
By adopting the technical scheme, the locking upper shell and the locking lower shell of the locking device are matched and sleeved at the two ends of the protection tube, so that the protection tube and the cable can not slide relatively.
Preferably, a hollow column is arranged on one side of the locking lower shell, a connecting rod is arranged in the hollow column in a sliding mode, a pull ring is fixedly arranged at one end of the connecting rod, and a plurality of groups of top columns are connected to one end, far away from the pull ring, of the connecting rod through springs.
By adopting the technical scheme, after the locking device pulls the pull ring, the locking device can slide relative to the cable, so that the position of the locking device can be conveniently adjusted.
Preferably, the locking lower shell is internally provided with a mounting space, the hollow column is fixedly connected with the inner wall of one side of the mounting space, a control gear is fixedly arranged on the connecting rod, one side of the control gear is engaged with a driving gear, the driving gear is fixedly arranged on a rotating shaft, the rotating shaft is fixedly connected with the inner wall of one side of the accommodating space, a first guide rod and a second guide rod are respectively fixedly arranged on the inner wall of one side of the accommodating space, a rack is arranged on the first guide rod in a sliding manner, the second guide bar is provided with a special-shaped push plate in a sliding way, two sides of the special-shaped push plate are provided with teeth, a transmission gear is meshed between the rack and the special-shaped push plate at the same time, the transmission gear is fixedly arranged on the rotating shaft, the rotating shaft is rotatably connected with the inner wall of one side of the accommodating space, and the teeth on the other side of the special-shaped push plate are meshed with the driving gear.
The invention has the beneficial effects that: the invention is used as a cable protection pipe, a connecting cover and two-end locking devices thereof, wherein the protection pipe is divided into two layers, and a grating plate is arranged between an inner liner layer and a shell, so that the protection capability of the protection pipe is improved, and the quality of the protection pipe is reduced; the protection tubes are matched with each other in pairs for use, so that the installation is convenient, the protection tubes on two sides have completely consistent structures, and the production is convenient; the central angle of the lining pipe of the protection pipe is 180 degrees, and the lining pipe cannot deform during installation, so that the service life of the protection pipe is prolonged; the connecting cover is simple in structure and rapid to install, and the two sections of protection pipes can be quickly connected by inserting the mushroom head-shaped fastening pin into the limiting hole of each protection pipe; the friction pad on the inner side of the locking device can be tightly contacted with the cable and is fixedly connected with the cable on the premise of not pressing the cable; the locking devices at two ends are flexible to use, and can slide on the cable by pulling the pull ring, so that the position of the protection pipe is convenient to adjust; in addition, after the pull ring of the locking device is pulled out, the buckle can be extruded by rotating the pull ring, and the locking device can be disassembled without using special tools.
Drawings
The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the FIG. 1 embodiment of the present invention;
fig. 3 is a schematic view of the structure of the protection tube 11 of fig. 1 according to the present invention;
FIG. 4 is a schematic view of the construction of the coupling cage 15 of FIG. 1 according to the present invention;
fig. 5 is a schematic view of the protection tube 11 and the connection cover 15 of fig. 1 according to the present invention;
FIG. 6 is a schematic view of the locking device of FIG. 1 according to the present invention;
fig. 7 is a schematic view showing the internal structure of the locking lower shell 22 of fig. 6 according to the present invention;
fig. 8 is a schematic view of the structure of fig. 7 in the direction of a-a according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are only a subset of the invention and not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention presented in the figures is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the invention without making creative efforts, shall fall within the protection scope of the invention.
The specific embodiment of the present invention will be described with reference to fig. 1 to 5, wherein a cable protection tube, a connecting cover and two-end locking devices thereof comprise a plurality of protection tubes 11, a plurality of connecting covers 15 and two locking devices, a cross section of each protection tube 11 is semicircular, a plurality of grid plates 19 are arranged on one side of each protection tube 11 close to a circle center of the cross section of each protection tube 11, a lining tube 17 is fixedly arranged on one side of each grid plate 19 far away from the protection tube 11, two ends of each protection tube 11 along a length direction thereof are respectively provided with a limiting hole 12, and each limiting hole 12 penetrates through the protection tube 11; the connecting cover 15 is used for connecting a plurality of the protection tubes 11, two limiting pins 16 are fixedly arranged on the connecting cover 15, and the limiting pins 16 are matched with the limiting holes 12 for use; the locking device comprises an upper locking shell 21 and a lower locking shell 22, the upper locking shell 21 is hinged to the lower locking shell 22 through a rotating pin 27, and one side, close to each other, of the upper locking shell 21 and one side, close to the lower locking shell 22, of each upper locking shell 22 are in a semicircular groove shape.
Beneficially, the cross section of the lining pipe 17 is semicircular, the center of the cross section of the lining pipe 17 coincides with the center of the cross section of the protection pipe 11, the end of the cross section of the lining pipe 17 and the end of the cross section of the protection pipe 11 are located on the same plane, one side of the protection pipe 11 is provided with a sliding groove 18, the sliding groove 18 is located between the protection pipe 11 and the lining pipe 17, the cross section of the sliding groove 18 is arc-shaped, one side of the protection pipe 11 away from the sliding groove 18 is provided with an insert strip 14, and the insert strip 14 is fixedly arranged on one of the grid plates 19.
Advantageously, the cross section of the insert 14 is arc-shaped, the central angle of the cross section of the sliding groove 18 is concentric and equal to the central angle of the cross section of the insert 14, the thickness of the sliding groove 18 is the same as that of the insert 14, and the insert 14 and the sliding groove 18 on the two protection tubes 11 are respectively matched with each other to form a cylinder.
Advantageously, in a cross-section of one of the protective tubes 11, the distance between the end of the plug 14 remote from the protective tube 11 and the end of the lining tube 17 remote from the plug 14 is greater than the diameter of the lining tube 17.
Advantageously, the side of the protective tube 11 facing away from the inner lining tube 17 is provided with a light emitting sleeve 13, and the light emitting sleeve 13 is located between the two limiting holes 12.
Advantageously, the cross section of the connection cap 15 is in the form of a sector ring with a central angle greater than 180 °, and the diameter of the inside of the cross section of the connection cap 15 is equal to the diameter of the outside of the cross section of the protective tube 11.
Beneficially, one end of the limiting pin 16 is in a mushroom shape, one end of the limiting pin 16, which is far away from the connecting cover 15, is provided with a groove, and the diameter of the mushroom head of the limiting pin 16 is larger than that of the limiting hole 12.
Advantageously, two of the limiting pins 16 are arranged along the length direction of the connecting cover 15, and the distance between the two limiting pins 16 is equal to twice the distance from the limiting hole 12 to one end of the protecting pipe 11.
Advantageously, a plurality of friction pads 33 are arranged on one side of the locking upper shell 21 close to the locking lower shell 22, one end of the locking upper shell 21 is hinged to a rotating part 29 through a connecting pin 28, a buckle 32 is fixedly arranged at one end of the rotating part 29, a fixing part 30 is arranged at one end of the locking lower shell 22, a square groove 31 is arranged at one end of the fixing part 30, the rotating part 29 is matched with the fixing part 30, and the buckle 32 is matched with the square groove 31.
Beneficially, a hollow column 23 is arranged on one side of the lower locking shell 22, a hollow column 41 is arranged in the hollow column 23, a connecting rod 24 is slidably arranged in the hollow column 41, a pull ring 25 is fixedly arranged at one end of the connecting rod 24, a placing plate 40 is fixedly arranged at one end, far away from the pull ring 25, of the connecting rod 24, and a plurality of top columns 26 are fixedly arranged at one end, far away from the connecting rod 24, of the placing plate 40.
Beneficially, a placement space 47 is provided in the locking lower shell 22, the hollow column 41 is fixedly connected with an inner wall of one side of the placement space 47, the connecting rod 24 is fixedly provided with a control gear 44, one side of the control gear 44 is engaged with a driving gear 43, the driving gear 43 is fixedly provided on a rotating shaft 45, the rotating shaft 45 is fixedly connected with an inner wall of one side of the placement space 47, the inner wall of one side of the placement space 47 is respectively and fixedly provided with a first guide rod 35 and a second guide rod 38, the first guide rod 35 is slidably provided with a rack 46, the second guide rod 38 is slidably provided with a special-shaped push plate 39, two sides of the special-shaped push plate 39 are provided with teeth, a transmission gear 36 is simultaneously engaged between the rack 46 and the special-shaped push plate 39, the transmission gear 36 is fixedly provided on the rotating shaft 37, and the rotating shaft 37 is rotatably connected with an inner wall of one side of the placement space 47, the teeth on the other side of the shaped push plate 39 are meshed with the driving gear 43.
The use method of the invention comprises the following steps:
in the initial state, the adaptive protection pipe 11 is selected according to the specification and the size of the cable, and the diameter of the cable is equal to that of the lining pipe 17.
The length of construction is determined, the number of protection tubes 11 to be used is determined, the protection tubes 11 are normally used in a pairwise matching mode, and the number of the connecting covers 15 is half of the number of the protection tubes 11 and is subtracted by one.
Simultaneously taking out the two protection pipes 11 to enable the two protection pipes 11 to be respectively positioned at two sides of the cable 20 and to be parallel to the cable 20, enabling the two protection pipes 11 to be arranged in tandem along the length direction of the cable 20, enabling the sides, with openings, of the two protection pipes 11 to face the cable 20, and enabling the inserting strips 14 on the two protection pipes 11 to be arranged above and below one another;
the lining pipes 17 of the two protection pipes 11 are tightly attached to the cable 20, then the two protection pipes 11 are close to each other along the length direction of the cable 20, the inserting strips 14 of one protection pipe 11 are aligned with the sliding grooves 18 of the other protection pipe 11, and after the two protection pipes 11 are close to each other, the two inserting strips 14 respectively slide in the two sliding grooves 18 until the two ends of the two protection pipes 11 are flush;
when the protection pipe 11 is mounted, if the required construction length is longer than the protection pipe 11, the connection is performed by using the connection cover 15.
Repeating the steps to complete the installation of the second section of the protection pipe 11, connecting the joints of the two sections of the protection pipes 11 by using the connecting cover 15, keeping the connecting cover 15 horizontal with the cable 20, aligning one side of the limiting pin 16 on the connecting cover 15 with the limiting hole 12 on the protection pipe 11, and forcibly pressing the connecting cover 15; the two ends of the connecting cover 15 are deformed and opened before being reset when passing through the cable 20; when the limiting pin 16 contacts the limiting hole 12, the mushroom head of the limiting pin 16 deforms at the groove, and resets after penetrating through the protection tube 11; after the connecting cover 15 is installed, the connecting cover 15 is tightly matched with the two sections of protection pipes 11 on two sides of the connecting cover 15, and the connecting cover 15 cannot fall off under the matching of the limiting pin 16 and the limiting hole 12.
When installing the protective tube 11 on a long length of cable 20, the connection covers 15 may be distributed on both sides of the cable 20 in a staggered manner for strength enhancement, as the field conditions permit.
If meet cable 20's one side and have the joint or connect special circumstances such as other work pieces, when the installation, can make connecting cover 15 all be located same one side of cable 20, and the protection tube 11 of opposite side does not receive connecting cover 15's restraint, can freely slide, need not to make two liang of protection tubes 11 of cable 20 both sides correspond, a protection tube 11 can be with the partly difference sliding connection of two protection tubes 11, makes protection tube 11 can skip the one side that has the foreign matter, realizes short distance leap formula protection.
After the position of the protection tube 11 is determined, a locking device is respectively arranged at the two ends of the protection tube, the locking upper shell 21 and the locking lower shell 22 are locked by rotating around the rotating pin 27, the cable 20 is clamped between the locking upper shell 21 and the locking lower shell 22, the rotating part 29 is rotated around the rotating pin 28, the buckle 32 extends into the square opening groove 31 to be fastened, and the cable 20 is clamped under the action of the friction pad 33 and the top column 26;
pulling the pull ring 25, the pull ring 25 drives the connecting rod 24 to extend out, the spring on the connecting rod 24 is compressed, the top column 26 retracts into the locking lower shell 22, the locking device can be freely dragged along the length direction of the cable 20, one end of the locking device is in contact with one end of the protective tube 11, the pull ring 25 is loosened, the spring tends to be in a recovery state, the top column 26 abuts against the cable 20, and the locking device and the protective tube 11 are kept relatively fixed with the cable 20;
when the locking device needs to be disassembled, the pull ring 25 is pulled out firstly, after the pull ring 25 leaves the placement groove 34, the pull ring 25 is rotated around the connecting rod 24, the pull ring 25 drives the connecting rod 24 to rotate, the connecting rod 24 drives the driving gear 43 to rotate, the driving gear 43 drives the special-shaped push plate 39 to slide along the second guide rod 38, the second guide rod 38 drives the transmission gear 36 to rotate, the transmission gear 36 drives the rack 46 to slide along the first guide rod 35, the special-shaped push plate 39 and the rack 46 are close to the square opening groove 31, the buckle 32 is clamped tightly by the special-shaped push plate 39 and the rack 46, the locking device can be opened by rotating the rotating part 29 around the connecting pin 28 at the moment, and the locking device can be opened by loosening after the pull ring 25 is rotated reversely.
In the description of the present invention, it is to be noted that, unless otherwise specifically defined or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The foregoing is merely exemplary and illustrative of the inventive arrangements and it is intended that the skilled person in this field of technology, which may make various modifications, additions or substitutions to the specific embodiments described, shall fall within the scope of protection of the present invention without departing from the inventive arrangements or exceeding the scope as defined in the claims.
Claims (10)
1. A cable protection pipe, its characterized in that: including two at least protection tubes, the cross section of protection tube is the semicircle ring-type, the protection tube is close to one side in the protection tube cross section centre of a circle is equipped with a plurality of grid boards, the grid board is kept away from the fixed interior bushing pipe that is equipped with in one side of protection tube, the protection tube is equipped with a spacing hole respectively along its length direction's both ends, spacing hole runs through the protection tube.
2. A cable protection tube according to claim 1, wherein: the cross section of the lining pipe is semicircular, the circle center of the cross section of the lining pipe coincides with the circle center of the cross section of the protection pipe, the end of the cross section of the lining pipe and the end of the cross section of the protection pipe are located on the same plane, a sliding groove is formed in one side of the protection pipe, the sliding groove is located between the protection pipe and the lining pipe, the cross section of the sliding groove is arc-shaped, an inserting strip is arranged on one side, away from the sliding groove, of the protection pipe, and the inserting strip is fixedly arranged on one of the grating plates.
3. A cable protection tube according to claim 2, wherein: the cross section of the cutting is arc-shaped, the central angle of the cross section of the sliding groove is concentric with and equal to the central angle of the cross section of the cutting, the thickness of the sliding groove is equal to that of the cutting, and the cutting and the sliding groove on the two protection tubes are matched with each other to form a cylinder.
4. A cable protection tube according to claim 3, wherein: on the cross section of one of the protection tubes, the distance between one end of the insertion strip, which is far away from the protection tube, and one end of the lining tube, which is far away from the insertion strip, is larger than the diameter of the lining tube, and a luminous sleeve is arranged on one side, which is far away from the lining tube, of the protection tube and is positioned between the two limiting holes.
5. A cable connecting cover for connecting a cable protecting pipe according to claim 1, wherein: the connecting cover is used for connecting two adjacent same sides of the protection tube, two limiting pins are fixedly arranged on the connecting cover, the limiting pins are matched with the limiting holes for use, the cross section of the connecting cover is in a sector annular shape with a central angle larger than 180 degrees, and the diameter of the inner side of the cross section of the connecting cover is equal to that of the outer side of the cross section of the protection tube.
6. A cable gland according to claim 5, wherein: one end of the limiting pin is in a mushroom head shape, one end of the limiting pin, which is far away from the connecting cover, is provided with a groove, and the diameter of the mushroom head of the limiting pin is larger than that of the limiting hole.
7. A cable gland according to claim 6, wherein: the two limiting pins are arranged along the length direction of the connecting cover, and the distance between the two limiting pins is equal to two times of the distance from the limiting hole to one end of the protection tube.
8. A cable end locking device for locking the cable protection pipe of claim 1, wherein: including locking epitheca and locking inferior valve, the locking epitheca with the locking inferior valve is articulated through the rotating pin, the locking epitheca with one side that the locking inferior valve is close to each other is the semicircle recess form, the locking epitheca is close to one side of locking inferior valve is equipped with a plurality of friction pads, the one end of locking epitheca is articulated through the connecting pin and is rotated the piece, the fixed buckle that is equipped with in one end of rotating the piece, the one end of locking inferior valve is equipped with the mounting, the one end of mounting is equipped with the square groove, rotate the piece with the mounting cooperation, the buckle with the square groove cooperation.
9. A cable end locking device according to claim 9, wherein: one side of locking inferior valve is equipped with hollow post, it is equipped with the connecting rod to slide in the hollow post, the fixed pull ring that is equipped with of one end of connecting rod, the connecting rod is kept away from the one end of pull ring has the multiunit fore-set through spring coupling.
10. A cable end locking device according to claim 9, wherein: a mounting space is arranged in the locking lower shell, the hollow column is fixedly connected with the inner wall of one side of the mounting space, a control gear is fixedly arranged on the connecting rod, one side of the control gear is engaged with a driving gear, the driving gear is fixedly arranged on a rotating shaft, the rotating shaft is fixedly connected with the inner wall of one side of the accommodating space, a first guide rod and a second guide rod are respectively fixedly arranged on the inner wall of one side of the accommodating space, a rack is arranged on the first guide rod in a sliding manner, the second guide bar is provided with a special-shaped push plate in a sliding way, two sides of the special-shaped push plate are provided with teeth, a transmission gear is meshed between the rack and the special-shaped push plate at the same time, the transmission gear is fixedly arranged on the rotating shaft, the rotating shaft is rotatably connected with the inner wall of one side of the accommodating space, and the teeth on the other side of the special-shaped push plate are meshed with the driving gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111259538.0A CN113964751A (en) | 2021-10-28 | 2021-10-28 | Cable protection pipe, connecting cover and two-end locking device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111259538.0A CN113964751A (en) | 2021-10-28 | 2021-10-28 | Cable protection pipe, connecting cover and two-end locking device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113964751A true CN113964751A (en) | 2022-01-21 |
Family
ID=79467738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111259538.0A Withdrawn CN113964751A (en) | 2021-10-28 | 2021-10-28 | Cable protection pipe, connecting cover and two-end locking device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113964751A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991696A (en) * | 2022-04-22 | 2022-09-02 | 黄河勘测规划设计研究院有限公司 | Method for protecting orifice of geological exploration drilling |
| CN117724217A (en) * | 2024-01-02 | 2024-03-19 | 河间市瀛州电信器材有限公司 | Optical cable protection tube for communication |
-
2021
- 2021-10-28 CN CN202111259538.0A patent/CN113964751A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114991696A (en) * | 2022-04-22 | 2022-09-02 | 黄河勘测规划设计研究院有限公司 | Method for protecting orifice of geological exploration drilling |
| CN114991696B (en) * | 2022-04-22 | 2023-11-21 | 黄河勘测规划设计研究院有限公司 | Protection method for geological exploration drilling hole orifice |
| CN117724217A (en) * | 2024-01-02 | 2024-03-19 | 河间市瀛州电信器材有限公司 | Optical cable protection tube for communication |
| CN117724217B (en) * | 2024-01-02 | 2024-06-21 | 河间市瀛州电信器材有限公司 | Optical cable protection tube for communication |
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Application publication date: 20220121 |