Metal cable bridge cover plate locking device

Abstract

The invention relates to the technical field of metal cable bridge accessories, and discloses a metal cable bridge cover plate locking device which comprises a rotating rod sleeve, a cable bridge cover plate and a cable bridge body, the rotating rod sleeve is rotationally connected with the cable bridge cover plate, and the cable bridge cover plate is buckled to the top of the cable bridge body. The outer surface of the rotating rod sleeve is in threaded connection with a locking screw cap, a rotatable moving rod is rotationally connected into the rotating rod sleeve, and the bottom end of the rotatable moving rod is fixedly connected with a rotatable moving piece. According to the metal cable bridge cover plate locking device provided by the invention, the plurality of straight slotted holes are formed in the two sides of the cable bridge body and the cable bridge cover plate, and the locking insertion rods are inserted into the straight slotted holes, so that the cable bridge body and the cable bridge cover plate can be firmly connected through the locking insertion rods; and through the arrangement of a rack and a driving gear, a plurality of locking insertion rods can be operated to move at a time, so that the cable bridge body and the cable bridge cover plate can be conveniently unlocked.

Description

Technical Field

[0001] The invention relates to the technical field of metal cable tray accessories, in particular to a metal cable tray cover plate locking device. Background Art

[0002] Cable trays are metal structural systems used to lay and protect power cables. They not only ensure the safe laying of cables, but also facilitate maintenance and management. Cable trays are usually made of metal materials and have sufficient mechanical strength to withstand the weight of cables and the impact of the external environment. For further protection of cables, cable trays are usually equipped with covers to prevent cables from being exposed.

[0003] There are five main types of connection between the cable tray and the cover plate: pressure plate fixing, screw buckle fixing, snap buckle fixing, padlock fixing and seven-shaped buckle fixing. The pressure plate fixing method punches holes in the cable tray cover plate, and uses pressure plates and screws to tightly fix the cover plate and the tray together. The screw buckle fixing method also requires punching holes in the cover plate, and the cover plate and the tray are fixed by the rotatable piece of the screw buckle. The snap buckle fixing method does not require punching holes in the cover plate, but fixes the cover plate and the tray together by the bent folds at both ends of the buckle. The padlock fixing method welds the padlock hook and the body on the cover plate and the tray, and then fixes them together with the padlock swivel. The seven-shaped buckle fixing method requires punching holes in the cable tray first, inserting the lower end of the seven-shaped buckle into the tray hole, and fixing the upper end to the cover plate by tightening the screws.

[0004] Although the above fixing methods can fix the cable tray and the cover plate, multiple fixing parts are usually required to be fixed between a cable tray and the cover plate, which makes the disassembly process more cumbersome and is not conducive to quickly opening the cover plate of the cable tray to inspect the cables inside the cable tray. Summary of the invention

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present invention provides a metal cable tray cover locking device, which has the advantages of being able to firmly fix the cable tray and the cover, and the disassembly and locking processes are very convenient and quick, thereby solving the above-mentioned technical problems.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned purpose of being able to firmly fix the cable tray and the cover plate, and the disassembly and locking processes are very convenient and quick, the present invention provides the following technical solutions: a metal cable tray cover plate locking device, comprising a rotating rod sleeve, a cable bridge cover plate and a cable tray body, the rotating rod sleeve is rotatably connected to the cable bridge cover plate, the cable bridge cover plate is buckled on the top of the cable tray body, the outer surface of the rotating rod sleeve is threadedly connected to the locking cover, and the rotating rod sleeve is rotatably connected to a rotatable movable rod, the bottom end of the rotatable movable rod is fixedly connected to a rotatable movable sheet, the rotatable movable rod is fixedly connected to the bottom end of the rotatable movable rod, and the rotatable movable rod is fixedly connected to the bottom end of the rotatable movable rod. The two ends of the rotating piece are rotatably connected to the connecting plate, one end of the connecting plate is rotatably connected to the swivel, the outer surface of the swivel is threadedly connected to the locking rod, the outer surface of the locking rod is fixedly connected to the limit ring, and the outer surface of the locking rod is sleeved with a spring, the lower surface of the cable bridge cover is connected to the ear block by screws, the top end of the rotatable movable rod is plugged into the driving gear, the driving gear is meshed and connected to the rack, the outer surface of the rack is fixedly connected to the square connecting rod, the outer surface of the square connecting rod is slidably connected to the sliding seat, and straight slots are provided on both sides of the cable bridge cover and the cable bridge body.

[0009] As a preferred technical solution of the present invention, a plurality of equally spaced holes are provided through the top surface of the cable bridge cover, the holes are used to insert the rotating rod sleeve, and the outer surface of the locking rotary cover is provided with anti-slip grooves.

[0010] As a preferred technical solution of the present invention, one end of the spring abuts against the limiting ring, and the other end of the spring abuts against the ear block, a through hole is formed through the outer surface of the ear block, and a locking rod is slidably connected in the through hole.

[0011] As a preferred technical solution of the present invention, the top surface of the ear block is fixedly connected to the L-shaped piece, and a rectangular hole is penetrated through the top surface of the cable bridge cover plate, and the rectangular hole is adapted to the L-shaped piece.

[0012] As a preferred technical solution of the present invention, a plurality of racks are arranged at equal intervals on one side of the square connecting rod, the two ends of the rotatable movable plate are rotatably connected to the connecting plate through a pin shaft, and the end of the connecting plate away from the rotatable movable plate is rotatably connected to the swivel ring through a pin shaft.

[0013] As a preferred technical solution of the present invention, the outer surface of the square connecting rod slides in contact with two sliding seats, and the sliding seats are connected to the cable bridge cover plate by rivets.

[0014] As a preferred technical solution of the present invention, the top surface of the square connecting rod is fixedly connected to four paddles.

[0015] As a preferred technical solution of the present invention, the rotatable movable rod includes a locking key shaft arranged at the top, the center of the driving gear is inserted into the outer surface of the locking key shaft, and the top end of the locking key shaft is threadedly connected to a nut.

[0016] As a preferred technical solution of the present invention, a plurality of straight slot holes are evenly spaced on both sides of the cable bridge cover plate and the cable bridge frame body, and the straight slot holes are clearance-matched with the locking rods.

[0017] As a preferred technical solution of the present invention, one end of the locking rod away from the limiting ring is threadedly connected to the swivel.

[0018] Compared with the prior art, the present invention provides a metal cable tray cover locking device, which has the following beneficial effects:

[0019] 1. A metal cable tray cover locking device provided by the present invention drives the square connecting rod to move by toggling a paddle, so that the rack drives the driving gear to rotate, and the driving gear drives the rotatable movable rod to rotate, and the rotatable movable rod drives the rotatable movable plate to rotate and drives the connecting plate, the connecting plate drives the swivel, and the swivel pulls the locking rod. At this time, the cable bridge cover is buckled on the cable tray body, and then the paddle is released. Under the action of the spring, the locking rod can be automatically inserted into the straight slot hole, so that the cable bridge cover and the cable tray body can be locked. When the paddle is toggled in the opposite direction, the cable bridge cover and the cable tray body can be quickly separated, so that the cables inside the cable tray body can be easily inspected.

[0020] 2. The present invention provides a metal cable tray cover locking device, which is achieved by opening a plurality of straight slot holes on both sides of the cable tray body and the cable tray cover, and inserting a locking rod into each straight slot hole. The cable tray body and the cable tray cover can be securely connected through these locking rods, and a plurality of locking rods can be operated to move at one time through the setting of a rack and a driving gear, thereby facilitating the unlocking of the cable tray body and the cable tray cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a partial schematic diagram of the structural cover plate and other components of the present invention;

[0023] Figure 3 It is a schematic diagram of the explosion and decomposition of the locking device in the structure of the present invention;

[0024] Figure 4 It is a three-dimensional schematic diagram of the components such as the ear block, the locking rod and the spring of the structure of the present invention;

[0025] Figure 5 Schematic diagram of the cover plate of the present invention.

[0026] Among them: 1. Rotating rod sleeve; 2. Cable bridge cover; 3. Cable bridge body; 4. Locking cover; 5. Rotatable moving rod; 51. Key shaft; 6. Rotatable moving plate; 7. Connecting plate; 8. Rotating ring; 9. Locking plug rod; 10. Limiting ring; 11. Spring; 12. Ear block; 121. L-shaped plate; 13. Driving gear; 14. Rack; 15. Square connecting rod; 16. Sliding seat; 17. Straight slot hole; 18. Pick. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] See also Figure 1-Figure 5A metal cable tray cover locking device comprises a rotating rod sleeve 1, a cable tray cover 2 and a cable tray body 3, the rotating rod sleeve 1 is rotatably connected to the cable tray cover 2, the cable tray cover 2 is buckled on the top of the cable tray body 3, the outer surface of the rotating rod sleeve 1 is threadedly connected to the locking cover 4, and the rotating rod sleeve 1 is rotatably connected to a rotatable movable rod 5, the bottom end of the rotatable movable rod 5 is fixedly connected to a rotatable movable plate 6, both ends of the rotatable movable plate 6 are rotatably connected to a connecting plate 7, one end of the connecting plate 7 is rotatably connected to a swivel 8, and the swivel 8 is The outer surface is threadedly connected to the locking rod 9, the outer surface of the locking rod 9 is fixedly connected to the limit ring 10, and the outer surface of the locking rod 9 is sleeved with the spring 11, the lower surface of the cable bridge cover 2 is connected to the ear block 12 by screws, the top of the rotatable movable rod 5 is plugged into the driving gear 13, the driving gear 13 is meshed and connected to the rack 14, the outer surface of the rack 14 is fixedly connected to the square connecting rod 15, the outer surface of the square connecting rod 15 is slidably connected to the sliding seat 16, and straight slots 17 are provided on both sides of the cable bridge cover 2 and the cable bridge body 3.

[0031] Furthermore, the top surface of the cable bridge cover 2 is provided with a number of equally spaced holes, which are used to insert the rotating rod sleeve 1, and the outer surface of the locking screw cap 4 is provided with anti-slip grooves. The advantage is that the cover of the metal cable bridge needs to be bent and punched during the manufacturing process, and a number of holes need to be penetrated on the top surface of the cover, and the number of holes is the same as the number of the rotatable movable rod 5. By inserting the rotating rod sleeve 1 into the holes, and then using the locking screw cap 4 to screw into the outer surface of the rotating rod sleeve 1, since a disc is provided at the bottom of the rotating rod sleeve 1, the rotating rod sleeve 1 can be fixed to the cable bridge cover 2 in cooperation with the locking screw cap 4. The rotating rod sleeve 1 is used to rotatably connect the rotatable movable rod 5, and the rotating rod sleeve 1 is the basis for other components to be attached to the cable bridge cover 2, making it convenient to assemble the entire locking device on the cable bridge cover 2.

[0032] Furthermore, one end of the spring 11 abuts against the limit ring 10, and the other end of the spring 11 abuts against the ear block 12. A through hole is formed through the outer surface of the ear block 12, and the locking rod 9 is slidably connected in the through hole. The advantage is that under normal conditions, the spring 11 has a resistance force on the limit ring 10 and the ear block 12. Since the ear block 12 is fixed to the lower surface of the cable bridge cover 2, the force of the spring 11 can only drive the limit ring 10 to move, and the limit ring 10 drives the locking rod 9 to move in the direction of the straight slot hole 17, so that the locking rod 9 can be automatically inserted into the straight slot hole 17, so that the cable bridge body 3 and the cable bridge cover 2 are locked and connected, and the cable bridge cover 2 is protected above the cable bridge body 3, thereby protecting the cables inside the cable bridge body 3. It is worth noting that the cable bridge cover 2 is buckled to the top of the cable bridge body 3. Before the part is installed, it is necessary to keep rotating the rotatable movable rod 5 so that it drives the rotatable movable piece 6 at the bottom to rotate a certain angle, and the rotatable movable piece 6 drives the connecting plates 7 at both ends, and the connecting plates 7 pull the swivel 8, and the swivel 8 pulls the locking rod 9, and the locking rod 9 drives the limit ring 10 to compress the spring 11. At this time, the position of the locking rod 9 is withdrawn so that the cable bridge cover 2 can be smoothly buckled on the cable bridge body 3 without being blocked by the locking rod 9. Once the cable bridge cover 2 is buckled on the bottom of the cable bridge body 3, the rotatable movable rod 5 is immediately released. At this time, under the action of the spring 11, the locking rod 9 is automatically inserted into the straight slot hole 17 to complete the locking connection between the cable bridge cover 2 and the cable bridge body 3.

[0033] Furthermore, the top surface of the ear block 12 is fixedly connected to the L-shaped piece 121, and a rectangular hole is formed through the top surface of the cable bridge cover 2, and the rectangular hole is adapted to the L-shaped piece 121. The advantage is that by inserting the L-shaped piece 121 into the rectangular hole of the cable bridge cover 2 and then rotating it ninety degrees so that the top surface of the ear block 12 is attached to the lower surface of the cable bridge cover 2, and then connecting the ear block 12 with screws, the ear block 12 is firmly fixed to the lower surface of the cable bridge cover 2, and the ear block 12 can limit and guide the locking rod 9, and the overall structure is convenient for installing the ear block 12.

[0034] Furthermore, a plurality of racks 14 are arranged at equal intervals on one side of the square connecting rod 15, and the two ends of the rotatable movable plate 6 are rotatably connected to the connecting plate 7 through a pin shaft, and the end of the connecting plate 7 away from the rotatable movable plate 6 is rotatably connected to the swivel 8 through a pin shaft. The advantage is that when the square connecting rod 15 is pushed to drive the plurality of racks 14 to move, the racks 14 drive the driving gear 13 to rotate counterclockwise, and the driving gear 13 drives the positioning key shaft 51, and the positioning key shaft 51 drives the rotatable movable rod 5, and the rotatable movable rod 5 drives the bottom rotatable movable plate 6 to rotate around the rotating rod sleeve 1, and the overall structure enables the synchronous driving of the plurality of locking rods 9 to withdraw from the straight slot hole 17, so that the cable bridge cover 2 can be quickly separated from the cable bridge body 3, and compared with the traditional cable bridge cover locking component, the locking device of the present invention has a fast unlocking speed, which is convenient for inspecting the cables inside the cable bridge body 3.

[0035] Furthermore, the outer surface of the square connecting rod 15 slides in contact with two sliding seats 16, and the sliding seats 16 are connected to the cable bridge cover 2 by rivets. The advantage is that the square connecting rod 15 can be manually driven to move by the staff, and the square connecting rod 15 can be limited and guided by setting the sliding seats 16. Through holes are opened at both ends of the bottom of the sliding seat 16. During the processing of the cable bridge cover 2, the sliding seat 16 is directly riveted to the top of the cable bridge cover 2 using rivets, which not only reduces the installation steps for the user, but also the sliding seat 16 can be firmly fixed on the cable bridge cover 2.

[0036] Furthermore, the top surface of the square connecting rod 15 is fixedly connected with four paddles 18. The advantage is that the four paddles 18 are divided into two groups, the distance between the two paddles 18 in each group is equal to the length of the rack 14, and the two paddles 18 are located between a sliding seat 16. Under normal conditions, due to the action of the spring 11, two of the paddles 18 are attached to the sides of the sliding seat 16. The staff can manually move one of the paddles 18 to drive the square connecting rod 15 to move. The four paddles 18 can also act as limiters to prevent the square connecting rod 15 from completely disengaging from the sliding seat 16, thereby preventing the meshing connection between the rack 14 and the driving gear 13 from being separated.

[0037] Furthermore, the rotatable movable rod 5 includes a locking key shaft 51 arranged at the top, the center of the driving gear 13 is inserted into the outer surface of the locking key shaft 51, and the top of the locking key shaft 51 is threadedly connected to a nut. The advantage is that after the rotatable movable rod 5 is inserted into the rotating rod sleeve 1, the key hole at the center of the end face of the driving gear 13 is inserted into the locking key shaft 51, and then the locking key shaft 51 is connected with a nut, so that the driving gear 13 can be fixed on the locking key shaft 51, so that the driving gear 13 is connected to the rotatable movable rod 5, which facilitates the assembly of the locking device.

[0038] Furthermore, a plurality of straight slot holes 17 are evenly spaced on both sides of the cable bridge cover plate 2 and the cable bridge body 3, and the straight slot holes 17 are gap-matched with the locking plug rod 9. The advantage is that when the cable bridge cover plate 2 is buckled on the top of the cable bridge body 3, the straight slot holes 17 on the cable bridge cover plate 2 correspond to the straight slot holes 17 opened on the cable bridge body 3, and the width of the straight slot holes 17 is greater than the diameter of the locking plug rod 9, so that there is a gap, which facilitates the locking plug rod 9 to be smoothly inserted into the straight slot hole 17, so that the cable bridge cover plate 2 and the cable bridge body 3 are connected.

[0039] Furthermore, the end of the locking rod 9 away from the limiting ring 10 is threadedly connected to the swivel 8. The advantage is that by screwing the threaded end of the locking rod 9 into the screw hole on the outer surface of the limiting ring 10, the locking rod 9 can be conveniently connected to the limiting ring 10, further facilitating the assembly of the locking device.

[0040] When in use, first insert the rotating rod sleeve 1 into the sleeve hole on the top surface of the cable bridge cover 2, then use the locking screw cap 4 to screw into the outer surface of the rotating rod sleeve 1 so that the rotating rod sleeve 1 and the cable bridge cover 2 are firmly connected, then insert the rotatable movable rod 5 into the rotating rod sleeve 1 from the bottom, then slide the square connecting rod 15 and the sliding seat 16 together, then insert the key hole in the center of the end face of the driving gear 13 into the positioning key shaft 51, and then use the nut to connect the positioning key shaft 51, so that the driving gear 13 can be fixed. The locking rod 9 is then inserted into the through hole of the ear block 12, and the L-shaped piece 121 is inserted into the rectangular hole of the cable bridge cover 2, and then rotated ninety degrees so that the top surface of the ear block 12 fits the lower surface of the cable bridge cover 2, and then the ear block 12 is connected with a screw, so that the ear block 12 is firmly fixed to the lower surface of the cable bridge cover 2, and then the locking rod 9 is screwed into the screw hole of the swivel 8. The entire locking device is assembled on the cable bridge cover 2. By shifting the shifting piece 18, the square connecting rod 15 is driven to move. The square connecting rod 15 drives the rack 14 to move. The rack 14 can drive the driving gear 13 to rotate counterclockwise. The driving gear 13 drives the rotatable movable rod 5 to rotate. Then the rotatable movable rod 5 drives the rotatable movable piece 6 at the bottom to rotate a certain angle. The rotatable movable piece 6 drives the connecting plates 7 at both ends. The connecting plates 7 pull the swivel 8. The swivel 8 pulls the locking rod 9. The locking rod 9 drives the limit ring 10. The spring 11 is compressed, and the locking rod 9 is retracted so that the cable bridge cover 2 can be smoothly buckled on the cable bridge body 3, and then the paddle 18 is released. At this time, the spring 11 contacts the limiting ring 10 to drive the locking rod 9 to move and insert it into the straight slot hole 17, thereby completing the locking of the cable bridge cover 2 and the cable bridge body 3; when it is necessary to separate the cable bridge cover 2 and the cable bridge body 3, it is only necessary to paddle the paddle 18 in the opposite direction to pull the locking rod 9 out of the straight slot hole 17, thereby conveniently separating the cable bridge cover 2 and the cable bridge body 3.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal cable tray cover locking device, comprising a rotating rod sleeve (1), a cable tray cover (2) and a cable tray body (3), wherein the rotating rod sleeve (1) is rotatably connected to the cable tray cover (2), and the cable tray cover (2) is buckled on the top of the cable tray body (3), characterized in that: The outer surface of the rotating rod sleeve (1) is threadedly connected to the locking rotary cover (4), and the rotating rod sleeve (1) is rotatably connected to the rotatable movable rod (5), the bottom end of the rotatable movable rod (5) is fixedly connected to the rotatable movable plate (6), the two ends of the rotatable movable plate (6) are rotatably connected to the connecting plate (7), one end of the connecting plate (7) is rotatably connected to the rotating ring (8), the outer surface of the rotating ring (8) is threadedly connected to the locking plug rod (9), the outer surface of the locking plug rod (9) is fixedly connected to the limiting ring (10), and the locking plug rod ( 9) is sleeved on the outer surface of a spring (11), the lower surface of the cable bridge cover (2) is connected to an ear block (12) by means of screws, the top end of the rotatable movable rod (5) is plugged into a driving gear (13), the driving gear (13) is meshedly connected to a rack (14), the outer surface of the rack (14) is fixedly connected to a square connecting rod (15), the outer surface of the square connecting rod (15) is slidably connected to a sliding seat (16), and straight slot holes (17) are provided on both sides of the cable bridge cover (2) and the cable bridge frame body (3).

2. A metal cable tray cover locking device according to claim 1, characterized in that: The top surface of the cable bridge cover (2) is provided with a plurality of equally spaced holes, the holes being used to insert the rotating rod sleeve (1), and the outer surface of the locking rotary cover (4) is provided with anti-slip grooves.

3. A metal cable tray cover locking device according to claim 1, characterized in that: One end of the spring (11) abuts against the limiting ring (10), and the other end of the spring (11) abuts against the ear block (12); a through hole is formed through the outer surface of the ear block (12), and a locking rod (9) is slidably connected in the through hole.

4. A metal cable tray cover locking device according to claim 1, characterized in that: The top surface of the ear block (12) is fixedly connected to the L-shaped piece (121), and a rectangular hole is provided through the top surface of the cable bridge cover plate (2), and the rectangular hole is adapted to fit the L-shaped piece (121).

5. A metal cable tray cover locking device according to claim 1, characterized in that: A plurality of racks (14) are arranged at equal intervals on one side of the square connecting rod (15); the two ends of the rotatable movable plate (6) are rotatably connected to the connecting plate (7) via a pin shaft; and the end of the connecting plate (7) away from the rotatable movable plate (6) is rotatably connected to the rotating ring (8) via a pin shaft.

6. A metal cable tray cover locking device according to claim 1, characterized in that: The outer surface of the square connecting rod (15) slides in contact with two sliding seats (16), and the sliding seats (16) are connected to the cable bridge cover plate (2) via rivets.

7. A metal cable tray cover locking device according to claim 1, characterized in that: The top surface of the square connecting rod (15) is fixedly connected to four paddles (18).

8. A metal cable tray cover locking device according to claim 1, characterized in that: The rotatable movable rod (5) comprises a locking key shaft (51) arranged at the top, the center of the driving gear (13) is inserted into the outer surface of the locking key shaft (51), and the top end of the locking key shaft (51) is threadedly connected to a nut.

9. A metal cable tray cover locking device according to claim 1, characterized in that: A plurality of straight slot holes (17) are evenly spaced on both sides of the cable bridge cover plate (2) and the cable bridge frame body (3), and the straight slot holes (17) are clearance-matched with the locking plug rod (9).

10. A metal cable tray cover locking device according to claim 1, characterized in that: One end of the locking rod (9) away from the limiting ring (10) is threadedly connected to the rotating ring (8).

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