Combined adjustable electric power splicing fitting

Abstract

The invention discloses a combined adjustable electric power splicing fitting, which belongs to the field of splicing fittings and comprises a connecting cylinder, the connecting cylinder comprises two mutually symmetrical first shells and two mutually symmetrical second shells, the two first shells are hinged to each other, the two second shells are hinged to each other, and the two second shells are hinged to each other. The first shell body and the second shell body are hinged to each other, a mounting part used for fixing the first shell body and the second shell body is arranged above the connecting position of the first shell body and the second shell body, and locking barrels are arranged at the two ends of the connecting barrel. According to the cable tensioning device, the cable can be automatically tensioned when a vehicle passes through the cable tensioning device every time, the situation that the cable is loosened and falls due to the thermal expansion and cold contraction effect of the cable caused by temperature change is prevented, devices at all positions along the way can be driven to work along with the vehicle, and the safety of the vehicle is improved. And each section of cable of the overhead line can be always in a tensioning state.

Description

Technical Field

[0001] The invention relates to the field of connection fittings, and more specifically to a combined adjustable power connection fitting. Background Art

[0002] A trolleybus is a public transportation vehicle that is usually powered by an overhead contact network, driven by an electric motor, and does not rely on fixed tracks. The trolleybus obtains electricity from the overhead contact network through a collector pole as the driving force of the vehicle; the collector pole and the collector head can be deflected at a certain angle to ensure that the vehicle has a certain ability to deviate from the line;

[0003] The overhead wire network that provides power for trolleybuses usually consists of multiple contact wires, forming a complex network structure. These contact wires are divided, merged, and crossed through devices such as splitters and crossers to meet the driving needs of vehicles on different sections of the road.

[0004] Because the overhead line network has a large span and covers a wide area, it is necessary to use power continuous hardware for segmented connection. Traditional power hardware cannot adjust the tension of the cable in real time when the trolleybus passes by, causing the cable to become loose after long-term use.

[0005] In view of this, and in view of the above-mentioned deficiencies, the present invention provides a combined adjustable power connection fitting. Summary of the invention

[0006] In view of the problems existing in the prior art, the object of the present invention is to provide a combined adjustable power connection fitting which can automatically adjust the tension of the cable as a tram passes by.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A combined adjustable power connection fitting comprises a connecting tube, wherein the connecting tube comprises two mutually symmetrical first shells and two mutually symmetrical second shells, wherein the two first shells are hinged to each other, the two second shells are hinged to each other, the first shell and the second shell are hinged to each other, and a mounting component for fixing the first shell and the second shell is provided above the connection position of the first shell and the second shell;

[0009] Both ends of the connecting cylinder are provided with locking cylinders, and the first shell and the second shell are respectively rotatably installed on the corresponding side surfaces of the locking cylinders. The two opposite first shells and the second shells are combined to form a closed chamber, and a locking piece is provided inside the closed chamber, and the locking piece is used to fix the copper head on the cable.

[0010] Furthermore, the locking member includes a first locking shell, a second locking shell is provided on one side of the first locking shell, the first locking shell is fixedly mounted on one of the first shells, the second locking shell is fixedly mounted on the other first shell, the locking member inside the second shell is installed in the same manner, a copper plate is fixedly mounted on one side of the two first locking shells close to each other, the two copper plates are fitted together, and a plurality of evenly distributed locking heads are fixedly mounted inside the first locking shell and the second locking shell, and the copper heads are located in the middle of the first locking shell and the second locking shell.

[0011] Furthermore, a push plate is provided on the side of the first locking shell and the second locking shell away from the copper plate, and a threaded rod is provided on the side of the first locking shell and the second locking shell close to the push plate through threaded engagement, and the end of the threaded rod is rotatably mounted on the corresponding push plate.

[0012] Furthermore, the internal sliding card of the locking cylinder is provided with two symmetrical inner sliding shells, which are combined to form a complete cylinder. The cable passes through the cylinder and enters the interior of the locking member. A plurality of evenly distributed resistance springs are fixedly installed on one side of the two inner sliding shells close to the push plate.

[0013] Furthermore, a first matching plate is rotatably provided at one end of the cylinder formed by the two inner sliding shells away from the locking piece, an inner wall of the inner sliding shell close to the locking piece is provided with an internal thread groove, a first movable plate is provided on the side of the first matching plate close to the locking piece, the first movable plate has a thread used in conjunction with the internal thread groove, a plurality of evenly distributed first spring telescopic rods are fixedly connected between the first matching plate and the first movable plate, a plurality of evenly distributed spherical grooves are provided on the side of the first matching plate away from the first movable plate, two mutually symmetrical second movable plates are movably provided at one end of the cylinder formed by the two inner sliding shells away from the first matching plate, and the two second movable plates are fixedly connected by a second spring telescopic rod.

[0014] Furthermore, a connecting head is rotatably installed on one side of the two locking cylinders away from the locking piece, and the connecting head includes a conical head, and a limiting pressure spring is embedded in the side of the conical head close to the locking cylinder, and a second matching plate is slidably clamped on the side of the conical head close to the locking cylinder, and the limiting pressure spring is used to fix the second matching plate and the conical head. The cable passes through the conical head, and a plurality of evenly distributed inclined plates are fixedly installed on the outer ring of the conical head, and a plurality of spherical protrusions corresponding to the spherical grooves on the first matching plate are integrally formed on the side of the second matching plate close to the locking cylinder.

[0015] Furthermore, a clamping plate is provided on the side away from each other of the two inner sliding shells, and the clamping plate is fixedly mounted on the corresponding push plate. A plurality of evenly distributed inclined protrusions are integrally formed on the clamping plate, and a plurality of evenly distributed inclined grooves are provided at positions corresponding to the inner sliding shells and the clamping plate. An ear plate is fixedly mounted on the side away from each other of the two inner sliding shells, and the ear plate passes through the locking cylinder and extends to the outside of the locking cylinder.

[0016] Furthermore, the mounting component includes a U-shaped plate, two rotating blocks corresponding to the first shell and the second shell are clamped inside the U-shaped plate, a slider is fixedly installed on the rotating block, an arc groove used in conjunction with the slider is opened on the inner surface of the U-shaped plate, a center groove is opened on the top of the U-shaped plate, a first return spring is arranged inside the center groove, two ends of the first return spring are respectively inserted into the corresponding rotating blocks, and two second connecting blocks symmetrical to each other are rotatably installed on the sides of the two rotating blocks away from each other.

[0017] Furthermore, a first connecting block is fixedly installed on the upper surface of the two first shells and the two second shells, and a sliding rod is provided on the side of the second connecting block away from the rotating block, one end of the sliding rod is movably clamped inside the second connecting block, and the other end of the sliding rod is slidably clamped inside the corresponding first connecting block.

[0018] Furthermore, a rotation groove is provided on both sides of the upper end of the U-shaped plate, a rotation seat is rotatably installed inside the rotation groove, a torsion spring is fixedly connected between the rotation seat and the rotation groove, screws are installed at the positions corresponding to the two rotation grooves of the U-shaped plate through threaded cooperation, the ends of the screws penetrate the U-shaped plate and extend to the surface of the rotation seat, a card block is provided for sliding inside the rotation seat, a second return spring is fixedly connected between the card block and the rotation seat, and the lower end of the card block is designed as an inclined surface. Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This device is equipped with a locking cylinder so that each time a vehicle passes through the device, the cable can be automatically tightened to prevent the cable from expanding and contracting due to temperature changes, which may cause the cable to loosen and fall. As the vehicle passes by, it can drive the device along the way to work, so that each section of the overhead line cable can always be in a tensioned state.

[0020] 2. This device is provided with a first shell and a second shell. When installing, you only need to bend down the first shell or the second shell at the corresponding position, then pass the cable through the connector and the locking cylinder into the interior of the locking member, and then bend the first shell or the second shell in the opposite direction to achieve installation. The installation is fast and can be completed without the use of tools.

[0021] 3. This device is provided with a first movable plate and a second movable plate. When the tension of the cable reaches a suitable state, the cable will idle as the vehicle passes the connector, thereby protecting the cable and preventing the cable from being damaged due to excessive tension. The device realizes automatic locking and automatic release to prevent the cable from being damaged.

[0022] 4. This device is provided with a connecting head, so that the second matching plate can drive the first matching plate to rotate when it rotates, and when the rotation resistance of the first matching plate is too large, it will automatically disengage, so that the pressure-limiting spring is compressed, thereby preventing excessive tension.

[0023] 5. By setting a locking cylinder, the device can not only automatically tighten the cable when the tram passes by, but also automatically detect the tension of the cable. If the tension is too large, it can automatically release part of the tension, so that the cable is always in a moderately tensioned state to prevent cable damage due to environmental reasons. When the cable is released, the first movable plate can be driven back to its original position to facilitate subsequent tensioning work.

[0024] 6. This device is provided with a rotating seat. As the rotating block of the rotating seat loses its effect on the rotating block, the rotating block and the second connecting block will rotate to release the first shell or the second shell at the corresponding position, thereby allowing the locking piece at the corresponding position to release the cable, preventing one end of the cable from being connected to the power grid when it is damaged, thereby preventing the cable damage from affecting the surrounding environment.

[0025] 7. This device is equipped with a torsion spring, which will produce a pulling effect on each device when the cable is working normally. When the cable on one side is bent by contact with other objects, it can return to its original state under the pulling force of the cable as long as it is within the rotation range of the rotating seat. The cable will only be automatically released when the sinking angle of the cable is too large to prevent safety accidents. The cable has a certain retreat ability and can maintain its integrity even if it collides with other objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a structural schematic diagram of the connecting tube in the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the locking member in the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the inner sliding shell and the ear plate in the present invention;

[0030] Figure 5 It is a schematic diagram of the structure inside the inner sliding shell of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the connector in the present invention;

[0032] Figure 7 It is a schematic diagram of the cutaway structure of the inner sliding shell in the present invention;

[0033] Figure 8 It is a structural schematic diagram of the installation components in the present invention;

[0034] Fig. 9 It is a schematic diagram of the cutaway structure of the U-shaped plate in the present invention.

[0035] Description of the numbers in the figure:

[0036] 1. Connecting cylinder; 2. Locking cylinder; 3. Connecting head; 4. Locking piece; 5. Cable; 6. Mounting component; 11. First housing; 12. Second housing; 13. First connecting block; 21. Inner sliding housing; 22. Ear plate; 23. Conflicting spring; 24. Internal thread groove; 25. First matching plate; 26. First moving plate; 27. First spring telescopic rod; 28. Second moving plate; 31. Conical head; 32. Pressure limiting spring; 33. Second matching plate; 34. Inclined plate; 41. First locking housing; 42. Second locking Shell; 43, locking head; 44, copper plate; 45, push plate; 46, threaded rod; 47, pressing plate; 51, copper head; 61, U-shaped plate; 62, rotating block; 63, second connecting block; 64, rotating seat; 65, torsion spring; 66, screw; 67, first return spring; 211, inclined groove body; 281, second spring telescopic rod; 471, inclined protrusion; 611, rotating groove; 612, arc groove; 613, central groove; 621, slider; 631, slide rod; 641, block; 642, second return spring. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0038] See also Figures 1 to 9A combined adjustable power connection fitting comprises a connecting tube 1, wherein the connecting tube 1 comprises two mutually symmetrical first shells 11 and two mutually symmetrical second shells 12, wherein the two first shells 11 are hinged to each other, the two second shells 12 are hinged to each other, the first shell 11 and the second shell 12 are hinged to each other, and an installation component 6 for fixing the first shell 11 and the second shell 12 is provided above the connection position of the first shell 11 and the second shell 12, locking tubes 2 are provided at both ends of the connecting tube 1, the first shell 11 and the second shell 12 are rotatably installed on the corresponding side surfaces of the locking tube 2, the two first shells 11 and the second shell 12 are combined to form a closed chamber, a locking piece 4 is provided inside the closed chamber, and a connecting head 3 is rotatably installed on the side of the two locking tubes 2 away from the locking piece 4, and the locking piece 4 is used to fix the copper head 51.

[0039] When actually used, the device is installed on the running line of the trolleybus and is used for the cable 5 on the overhead running line. The trolleybus is equipped with a collector pole and a collector head. The collector head is in contact with the cable 5 and can be used to receive current. Every time a vehicle passes through the device, the connector 3 can be driven to rotate. When the connector 3 rotates, the locking cylinder 2 can be driven to work. When the locking cylinder 2 works, it can push the locking member 4, so that every time a vehicle passes through the device, the cable 5 can be automatically tightened to prevent the cable 5 from expanding and contracting due to temperature changes, thereby causing the cable 5 to loosen and fall. As the vehicle passes by, the device can be driven to work at each location along the way, so that each section of the overhead line cable can always be in a tensioned state.

[0040] The locking member 4 includes a first locking shell 41, and a second locking shell 42 is provided on one side of the first locking shell 41. The first locking shell 41 is fixedly mounted on one of the first shells 11, and the second locking shell 42 is fixedly mounted on the other first shell 11. The locking member 4 inside the second shell 12 is installed in the same way. A copper plate 44 is fixedly mounted on the side where the two first locking shells 41 are close to each other, and the two copper plates 44 fit each other. A plurality of evenly distributed locking heads 43 are fixedly mounted inside the first locking shell 41 and the second locking shell 42, and the copper head 51 is located in the middle of the first locking shell 41 and the second locking shell 42. A push plate 45 is provided on the side of the first locking shell 41 and the second locking shell 42 away from the copper plate 44. A threaded rod 46 is provided on the side of the first locking shell 41 and the second locking shell 42 close to the push plate 45 through threaded matching, and the end of the threaded rod 46 is rotatably mounted on the corresponding push plate 45.

[0041] When the cable 5 needs to be installed with the locking member 4, it is only necessary to bend the first shell 11 or the second shell 12 at the corresponding position downward to disengage the first shell 11 or the second shell 12 from the installation member 6. At this time, the two first shells 11 rotate relative to each other and drive the first locking shell 41 and the second locking shell 42 to separate from each other. At this time, it is only necessary to pass the copper head 51 through the connector 3 and the locking cylinder 2 and put it between the first locking shell 41 and the second locking shell 42, and then bend the first shell 11 or the second shell 12 upward to re-engage the installation member 6. When engaged, the two first shells 11 or the second shells 12 can be automatically pressed together. During the pressing process, the two first shells 11 or the second shells 12 will drive the first locking shell 41 and the second locking shell 42 to be pressed together. When the first locking shell 41 and the second locking shell 42 are pressed together, the locking head 43 inside them will be driven to clamp the copper head 51, thereby producing a clamping effect. The distance between the push plate 45 and the first locking shell 41 can be changed by rotating the threaded rod 46, which is used to set the initial state of the cable so that the cable remains in a tensioned state during installation.

[0042] The device is provided with a first shell 11 and a second shell 12. When installing, one only needs to bend down the first shell 11 or the second shell 12 at the corresponding position, and then pass the cable through the connector 3 and the locking cylinder 2 into the interior of the locking member 4, and then bend the first shell 11 or the second shell 12 in the opposite direction to achieve installation. The installation is quick and can be completed without the use of tools.

[0043] The internal sliding card of the locking cylinder 2 is provided with two symmetrical inner sliding shells 21, and the two inner sliding shells 21 are combined to form a complete cylinder. The cable 5 passes through the cylinder and enters the interior of the locking member 4. A plurality of uniformly distributed resistance springs 23 are fixedly installed on the side of the two inner sliding shells 21 close to the push plate 45. The first matching plate 25 is rotatably provided on the end of the cylinder formed by the two inner sliding shells 21 away from the locking member 4. An inner thread groove 24 is provided on the inner wall of the inner sliding shell 21 close to the locking member 4. The first matching plate 25 is close to the locking member 4. A first movable plate 26 is provided, and the first movable plate 26 has a thread used in conjunction with the internal thread groove 24. A plurality of evenly distributed first spring telescopic rods 27 are fixedly connected between the first matching plate 25 and the first movable plate 26. A plurality of evenly distributed spherical grooves are provided on the side of the first matching plate 25 away from the first movable plate 26. Two symmetrical second movable plates 28 are movably clamped at one end of the cylinder formed by the two inner sliding shells 21 away from the first matching plate 25. The two second movable plates 28 are fixedly connected by a second spring telescopic rod 281.

[0044] When the connector 3 is driven to rotate, the first matching plate 25 can be driven to rotate. When the first matching plate 25 is rotated, the first spring telescopic rod 27 and the first movable plate 26 can be driven to rotate. Because the first movable plate 26 and the internal thread groove 24 are connected by threaded matching, when the first movable plate 26 rotates, it will move along the internal thread groove 24. When the first movable plate 26 moves, it will push the second movable plate 28. When the second movable plate 28 is pushed, it can push the push plate 45. Then, the push plate 45 drives the first locking shell 41 and the second locking shell 42 to move, thereby realizing the tensioning effect on the cable 5. When the cable 5 is tightened, When the tension of cable 5 is too large, due to the pulling force of cable 5 on locking piece 4, the force required to move locking piece 4 is relatively large. If locking piece 4 is to be moved, the force of first movable plate 26 pushing second movable plate 28 also needs to be increased, which means that the resistance to rotation of first movable plate 26 increases. At this time, the connection force between connector 3 and first movable plate 26 is less than the resistance to rotation of first movable plate 26, which causes connector 3 to be unable to drive first movable plate 26 to continue rotating. As the vehicle passes by connector 3, idling will occur, which can protect cable 5 and prevent cable 5 from being damaged due to excessive tension of cable 5, thereby realizing automatic locking and automatic release to prevent cable 5 from being damaged.

[0045] The connecting head 3 includes a conical head 31, and a limiting pressure spring 32 is embedded in the side of the conical head 31 close to the locking cylinder 2. A second matching plate 33 is slidably clamped on the side of the conical head 31 close to the locking cylinder 2. The limiting pressure spring 32 is used to fix the second matching plate 33 and the conical head 31. The cable 5 passes through the conical head 31. A plurality of evenly distributed inclined plates 34 are fixedly installed on the outer circle of the conical head 31. A plurality of spherical protrusions corresponding to the spherical grooves on the first matching plate 25 are integrally formed on the side of the second matching plate 33 close to the locking cylinder 2.

[0046] A stopper is installed inside the collector head on the trolleybus. When the trolleybus passes by, the stopper can contact the inclined plate 34, pushing the inclined plate 34, thereby driving the conical head 31 to rotate. When the conical head 31 rotates, it will drive the second matching plate 33 and the pressure-limiting spring 32 to rotate. The pressure-limiting spring 32 is used to push the second matching plate 33 to fit with the first matching plate 25, so that the spherical protrusion on the second matching plate 33 and the spherical groove on the first matching plate 25 engage with each other, and then the second matching plate 33 can drive the first matching plate 25 to rotate when rotating, and when the rotation resistance of the first matching plate 25 is too large, it will automatically disengage, so that the pressure-limiting spring 32 is compressed, thereby preventing the cable 5 from being over-tensioned.

[0047] A clamping plate 47 is provided on the side of the two inner sliding shells 21 away from each other. The clamping plate 47 is fixedly mounted on the corresponding push plate 45. A plurality of evenly distributed inclined protrusions 471 are integrally formed on the clamping plate 47. A plurality of evenly distributed inclined grooves 211 are provided at positions corresponding to the inner sliding shells 21 and the clamping plate 47. An ear plate 22 is fixedly mounted on the side of the two inner sliding shells 21 away from each other. The ear plate 22 penetrates the locking cylinder 2 and extends to the outside of the locking cylinder 2.

[0048] When the external environment becomes cold, the cable 5 itself will shrink. At this time, the tension of the cable 5 increases. If no measures are taken, the cable will be over-tensioned and damaged. When the device is in use, when a trolley bus passes by, the cable 5 will be tensioned first, and then as the trolley bus drives the collector to move, it will push the ear plate 22. The ear plate 22 is made of elastic material. When the ear plate 22 is pushed, it will drive the two inner sliding shells 21 to move. When the inner sliding shell 21 moves, it will drive the first moving plate 26 to move. The movement of the first moving plate 26 will push one of the second moving plates 28. If the cable 5 is in a state of moderate tension, the second spring telescopic rod 281 will drive the other second moving plate 28 to move, and the second moving plate 28 will push the push plate 45 to move, and then the push plate 45 will drive the cable 5 to move. If the cable 5 is in a state of excessive tension, when one of the second moving plates 28 moves, the other second moving plate 28 will not move under the pulling force of the cable 5. At this time, the second spring telescopic rod 281 contracts, and as the inner sliding shell 21 moves, the first moving plate 26 will move. The movement of the movable housing 21 causes the oblique protrusion 471 to enter the interior of the oblique groove body 211. A spring or a spring is installed between the two inner sliding housings 21. When the oblique protrusion 471 enters the interior of the oblique groove body 211, the two inner sliding housings 21 are separated by the action of the spring. At this time, the internal thread groove 24 loses its effect on the first movable plate 26. Under the pulling force of the cable 5 and the pulling of the first spring telescopic rod 27, the first movable plate 26 moves toward the direction of the first matching plate 25, thereby causing the second movable plate 28 to approach the first matching plate 25. Then the locking piece 4 will also be close to the first matching plate 25, because the movement of the locking piece 4 reduces the tension of the cable 5, and then the device is provided with a locking cylinder 2, so that when the tram passes by, the device can not only automatically tighten the cable 5, but also automatically detect the tension of the cable 5. If the tension is too large, it can automatically release a part of the tension, so that the cable 5 is always in a moderately tensioned state to prevent the cable 5 from being damaged due to environmental reasons, and when the cable 5 is released, the first movable plate 26 can be driven back to its original position, which is convenient for subsequent cyclic tensioning work.

[0049] The mounting component 6 includes a U-shaped plate 61, and two rotating blocks 62 corresponding to the first shell 11 and the second shell 12 are clamped inside the U-shaped plate 61, and a slider 621 is fixedly installed on the rotating block 62. An arc groove 612 used in conjunction with the slider 621 is provided on the inner surface of the U-shaped plate 61, and a central groove 613 is provided at the top of the U-shaped plate 61. A first return spring 67 is provided inside the central groove 613, and both ends of the first return spring 67 are respectively inserted into the corresponding rotating block 62. Two symmetrical second connecting blocks 63 are rotatably installed on the sides of the two rotating blocks 62 away from each other, and the first connecting blocks 13 are fixedly installed on the upper surfaces of the two first shells 11 and the two second shells 12. A sliding rod 631 is provided on the side of the second connecting block 63 away from the rotating block 62, and one end of the sliding rod 631 is movably clamped inside the second connecting block 63, and the other end of the sliding rod 631 is slidably clamped inside the corresponding first connecting block 13.

[0050] Rotation grooves 611 are provided on both sides of the upper end of the U-shaped plate 61, and a rotating seat 64 is rotatably installed inside the rotating groove 611. A torsion spring 65 is fixedly connected between the rotating seat 64 and the rotating groove 611. Screws 66 are installed at the positions corresponding to the U-shaped plate 61 and the two rotating grooves 611 through threaded cooperation. The ends of the screws 66 penetrate the U-shaped plate 61 and extend to the surface of the rotating seat 64. A card block 641 is provided for sliding inside the rotating seat 64. A second return spring 642 is fixedly connected between the card block 641 and the rotating seat 64, and the lower end of the card block 641 is designed as an inclined surface.

[0051] In actual use, because the trolleybus may make a sharp turn or be hit or struck due to road conditions during operation, the cable 5 may be irreversibly damaged, causing the cable 5 to break or fall to the ground. The overhead cables used for trolleybuses usually have no insulation layer or the insulation layer is thin. At this time, if the cable 5 falls to the ground, the ground area will be electrified, which may easily pose a threat to people or objects around. If there is water on the ground, the safety hazard will increase, and then cause serious safety accidents. Usually, when this happens, it is because one end of the cable 5 touches the ground, while the other end is still connected to the power grid, so that the current flows into the ground and surrounding buildings, causing safety hazards.

[0052] The device is provided with a mounting component 6. When installing, the first shell 11 or the second shell 12 is first bent downward. At this time, the first connecting block 13 drives the second connecting block 63 to rotate through the sliding rod 631. When the second connecting block 63 rotates, it drives the rotating block 62 to rotate. The slider 621 on the rotating block 62 slides along the arc groove 612, and the rotating block 62 rotates at the same time. When the rotating block 62 moves to the maximum position, the second connecting block 63 moves out of the U-shaped plate 61. At this time, the second connecting block 63 rotates around the rotating block 62, so that the second connecting block 63 is separated, and the sliding rod 631 Under the action of the first connecting block 13, the first connecting block 13 will rotate and slide around the sliding rod 631, so that the two first shells 11 or the second shells 12 are separated, and then the locking piece 4 at the corresponding position is opened. At this time, the cable 5 can be installed into the locking piece 4. After the installation is completed, the two first shells 11 or the second shells 12 are pressed together, and then the first shell 11 or the second shell 12 is bent in the opposite direction. At this time, the first connecting block 13 pushes the sliding rod 631 and the second connecting block 63 to move, so that the second connecting block 63 enters the interior of the U-shaped plate 61. Because the U-shaped plate 61 is U-shaped, it can produce a pressing effect on the second connecting block 63, so that the second connecting block The block 63 exerts a compressive effect on the first connecting block 13 and the first shell 11 and the second shell 12, so that the locking piece 4 clamps the copper head 51. When the first shell 11 or the second shell 12 is bent in the opposite direction, the second connecting block 63 will exert an upward thrust on the rotating block 62. When the second connecting block 63 completely enters the interior of the U-shaped plate 61, the clamping block 641 will descend under the action of the second return spring 642 to clamp the second connecting block 63. When the cable 5 on one side falls, the first shell 11 or the second shell 12 at the corresponding position will rotate under the action of gravity. When the second connecting block 63 rotates The clamping block 641 can push the clamping block 641, which will drive the rotating seat 64 to rotate. When the rotating seat 64 rotates at an excessive angle, it means that the cable 5 is damaged and falls off. As the rotating seat 64 rotates, the clamping block 641 loses its effect on the rotating block 62. At this time, the rotating block 62 and the second connecting block 63 will rotate to release the first shell 11 or the second shell 12 at the corresponding position, thereby allowing the locking member 4 at the corresponding position to release the cable 5, preventing one end of the cable 5 from being connected to the power grid when it is damaged, thereby automatically disconnecting the cable 5 from the power grid when it is damaged, thereby preventing the cable 5 from affecting the surrounding environment.

[0053] Because when the cable 5 is working normally, it will produce a pulling effect on each device. When the cable 5 on one side is bent by contact with other objects, as long as it is within the rotation range of the rotating seat 64, it can return to its original state under the pulling force of the cable 5. Only when the sinking angle of the cable 5 is too large will it be automatically released to prevent it from causing a safety accident. The cable 5 has a certain retreat ability and can maintain its own integrity even if it collides with other objects. The torsion spring 65 is used to keep the rotating seat 64 in a vertical state and provide a clamping force. The screw 66 is used to change the friction between the rotating seat 64 and the rotating groove 611.

[0054] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined adjustable power connection fitting, comprising a connecting tube (1), characterized in that: The connecting tube (1) comprises two mutually symmetrical first shells (11) and two mutually symmetrical second shells (12); the two first shells (11) are hinged to each other, the two second shells (12) are hinged to each other, the first shell (11) and the second shell (12) are hinged to each other, and a mounting component (6) for fixing the first shell (11) and the second shell (12) is provided above the connection position between the first shell (11) and the second shell (12); Both ends of the connecting cylinder (1) are provided with locking cylinders (2); the first shell (11) and the second shell (12) are rotatably mounted on the corresponding side surfaces of the locking cylinder (2); the first shell (11) and the second shell (12) are relatively combined to form a closed chamber; a locking member (4) is provided inside the closed chamber; the locking member (4) is used to fix the copper head (51) on the cable (5).

2. The combined adjustable power connection fitting according to claim 1, characterized in that: The locking member (4) comprises a first locking shell (41), a second locking shell (42) is provided on one side of the first locking shell (41), the first locking shell (41) is fixedly mounted on one of the first shells (11), the second locking shell (42) is fixedly mounted on the other first shell (11), the locking member (4) inside the second shell (12) is installed in the same manner, a copper plate (44) is fixedly mounted on one side of the two first locking shells (41) close to each other, the two copper plates (44) are fitted together, a plurality of evenly distributed locking heads (43) are fixedly mounted inside the first locking shell (41) and the second locking shell (42), and the copper head (51) is located in the middle of the first locking shell (41) and the second locking shell (42).

3. The combined adjustable power connection fitting according to claim 2, characterized in that: A push plate (45) is provided on the side of the first locking shell (41) and the second locking shell (42) away from the copper plate (44), and a threaded rod (46) is provided on the side of the first locking shell (41) and the second locking shell (42) close to the push plate (45) through threaded engagement, and the end of the threaded rod (46) is rotatably mounted on the corresponding push plate (45).

4. The combined adjustable power connection fitting according to claim 3 is characterized in that: The internal sliding card of the locking cylinder (2) is provided with two symmetrical inner sliding shells (21), and the two inner sliding shells (21) are combined to form a complete cylinder. The cable (5) passes through the cylinder and enters the interior of the locking member (4). A plurality of uniformly distributed resistance springs (23) are fixedly installed on one side of the two inner sliding shells (21) close to the push plate (45).

5. The combined adjustable power connection fitting according to claim 4, characterized in that: A first matching plate (25) is rotatably mounted at one end of the cylinder formed by the two inner sliding shells (21) away from the locking member (4); an inner thread groove (24) is provided on the inner wall of the inner sliding shell (21) on the side close to the locking member (4); a first movable plate (26) is provided on the side of the first matching plate (25) close to the locking member (4); a thread for use with the inner thread groove (24) is provided on the first movable plate (26); a plurality of evenly distributed first spring telescopic rods (27) are fixedly connected between the first matching plate (25) and the first movable plate (26); a plurality of evenly distributed spherical grooves are provided on the side of the first matching plate (25) away from the first movable plate (26); two second movable plates (28) symmetrical to each other are movably mounted at one end of the cylinder formed by the two inner sliding shells (21) away from the first matching plate (25); the two second movable plates (28) are fixedly connected by a second spring telescopic rod (281).

6. The combined adjustable power connection fitting according to claim 5, characterized in that: A connecting head (3) is rotatably mounted on one side of the two locking cylinders (2) away from the locking member (4), and the connecting head (3) includes a conical head (31), and a pressure limiting spring (32) is embedded in the conical head (31) on the side close to the locking cylinder (2). A second matching plate (33) is slidably clamped on the side of the conical head (31) close to the locking cylinder (2), and the pressure limiting spring (32) is used to fix the second matching plate (33) and the conical head (31). The cable (5) passes through the conical head (31), and a plurality of evenly distributed inclined plates (34) are fixedly mounted on the outer ring of the conical head (31). A plurality of spherical protrusions corresponding to the spherical grooves on the first matching plate (25) are integrally formed on the side of the second matching plate (33) close to the locking cylinder (2).

7. The combined adjustable power connection fitting according to claim 6, characterized in that: A clamping plate (47) is provided on the side away from each other of the two inner sliding shells (21), and the clamping plate (47) is fixedly mounted on the corresponding push plate (45). A plurality of evenly distributed inclined protrusions (471) are integrally formed on the clamping plate (47). A plurality of evenly distributed inclined grooves (211) are provided at positions corresponding to the inner sliding shells (21) and the clamping plate (47). An ear plate (22) is fixedly mounted on the side away from each other of the two inner sliding shells (21), and the ear plate (22) passes through the locking cylinder (2) and extends to the outside of the locking cylinder (2).

8. The combined adjustable power connection fitting according to claim 7, characterized in that: The mounting component (6) comprises a U-shaped plate (61), two rotating blocks (62) corresponding to the first shell (11) and the second shell (12) are clamped inside the U-shaped plate (61), a slider (621) is fixedly mounted on the rotating block (62), an arc groove (612) for use with the slider (621) is provided on the inner surface of the U-shaped plate (61), a central groove (613) is provided at the top end of the U-shaped plate (61), a first return spring (67) is provided inside the central groove (613), two ends of the first return spring (67) are respectively inserted into the corresponding rotating block (62), and two second connecting blocks (63) symmetrical to each other are rotatably mounted on the sides of the two rotating blocks (62) that are away from each other.

9. The combined adjustable power connection fitting according to claim 8, characterized in that: A first connecting block (13) is fixedly mounted on the upper surfaces of the two first shells (11) and the two second shells (12); a sliding rod (631) is provided on the side of the second connecting block (63) away from the rotating block (62); one end of the sliding rod (631) is movably clamped inside the second connecting block (63); and the other end of the sliding rod (631) is slidably clamped inside the corresponding first connecting block (13).

10. The combined adjustable power connection fitting according to claim 9, characterized in that: The upper end of the U-shaped plate (61) is provided with a rotating groove (611) on both sides, and a rotating seat (64) is rotatably installed inside the rotating groove (611). A torsion spring (65) is fixedly connected between the rotating seat (64) and the rotating groove (611). The positions corresponding to the U-shaped plate (61) and the two rotating grooves (611) are both installed with screws (66) through threaded matching. The end of the screw (66) passes through the U-shaped plate (61) and extends to the surface of the rotating seat (64). A card block (641) is provided for sliding inside the rotating seat (64). A second reset spring (642) is fixedly connected between the card block (641) and the rotating seat (64), and the lower end of the card block (641) is designed as an inclined surface.

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