Cold bending device for electrical sleeve

Abstract

The utility model discloses a cold bending device for electrical bushings, which belongs to the technical field of bending equipment for electrical bushings and comprises an underframe and a support frame fixedly mounted at the top of the underframe, cold bending wheels are mounted in the support frame, and a bending mechanism is arranged at the top of the support frame. The bending mechanism comprises two fixing plates which are symmetrically and fixedly installed on the top of the supporting frame. According to the bending device, the bending mechanism is arranged, manual operation and downward pressing are not needed for bending an electrical conduit, two hydraulic telescopic rods in the bending mechanism can replace manual operation, and the output ends of the hydraulic telescopic rods in the later period are started to extend to drive a first fixing frame and a pressing wheel to descend; after the pressing wheel makes contact with the casing pipe, the casing pipe is pressed downwards under continuous extension of the hydraulic telescopic rod, so that the electrical casing pipe is bent in cooperation with the cold bending wheel, manual intervention is not needed in the bending operation, manpower waste is effectively reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a cold bending device, in particular to an electrician casing cold bending device, and belongs to the technical field of electrician casing bending equipment. Background Art

[0002] Electrical conduit means that the wires are put inside the wire tube during decoration, which plays the role of protecting the wire tube. It is also called threading tube. The threading tube has a smooth surface, small fluid resistance, no scaling, and is not suitable for breeding microorganisms. The thermal expansion coefficient is small and does not shrink and deform. It is a traditional installation and connection method. The epoxy coating layer of the threading tube more effectively solves the corrosion of water supply, burial, acid, alkali, and salt on metal pipes, and the service life can reach more than 50 years.

[0003] When the electrical conduit is installed at a corner, it needs to be bent. Usually, a cold bending device is used to bend the conduit. According to the Chinese utility model patent (application number: CN202122449223.4), an electrical conduit cold bending machine is disclosed, including a base frame, a cold bending machine frame is fixedly connected to the center of the top of the base frame, a cold bending pressure wheel is installed at the center of the inner wall of the cold bending machine frame, and a first handle and a second handle are respectively installed between the cold bending machine frame and the cold bending pressure wheel. The first handle is fixedly connected to the top of the center of one side of the second handle near the center of one side of the second handle, and the second handle is fixedly connected to the top of the center of one side of the first handle near the center of the first handle. The utility model is provided with a first strong magnet on the first handle and a second strong magnet on the second handle. When the first handle and the second handle are retracted upward, the first strong magnet and the second strong magnet are magnetically attracted to each other, so that the first handle and the second handle can be fixed, and both hands can be released. The two will not fall when they are retracted, and then the electrical conduit is placed. When the first handle and the second handle are pressed downward, the magnets are slightly separated, and the cold bending test is performed normally.

[0004] However, the device still has the following problems: although the device can be operated by a single person to bend the casing, the bending process still requires manual operation to press the casing down and bend it, which still wastes manpower, and long-term use can easily cause fatigue to the staff, resulting in reduced work efficiency.

[0005] The utility model proposes a new solution to the above problems. Utility Model Content

[0006] The main purpose of the utility model is to solve the problem that although the existing cold bending device can be operated by one person to bend the sleeve, the bending process still requires manual operation to press the sleeve down and bend it, which still wastes manpower and easily causes fatigue of the staff after long-term use, resulting in reduced work efficiency. An electrical sleeve cold bending device is provided to solve the problem that although the existing cold bending device can be operated by one person to bend the sleeve, the bending process still requires manual operation to press the sleeve down and bend it, which still wastes manpower and easily causes fatigue of the staff after long-term use, resulting in reduced work efficiency.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] A cold bending device for electrical conduits comprises a base frame, and a support frame fixedly mounted on the top of the base frame, a cold bending wheel is installed inside the support frame, a bending mechanism is arranged on the top of the support frame, the bending mechanism comprises two fixed plates symmetrically fixedly mounted on the top of the support frame, a hydraulic telescopic rod is fixedly mounted on the fixed plate, a first fixed frame is fixedly mounted on the output end of the hydraulic telescopic rod, and a pressure wheel is installed inside the first fixed frame.

[0009] Preferably, the pressing wheel is connected to the first fixing frame via a rotating shaft.

[0010] Preferably, a sponge pad is installed on the surface of the pressure wheel, a first Velcro is installed on the pressure wheel, and a second Velcro that fits with the first Velcro is installed on the sponge pad.

[0011] Preferably, two fixing blocks are symmetrically fixedly mounted on the surface of the support frame, a mounting groove is provided inside the fixing block, a spring is fixedly mounted inside the mounting groove, and a clamping rod is fixedly mounted on one end of the spring.

[0012] Preferably, both ends of the cold bending wheel are movably provided with clamping blocks mutually engaged with the clamping rod, one end of the clamping rod is arranged in an arc shape, and the clamping block is mutually engaged with a groove in the support frame.

[0013] Preferably, two fixing rods are symmetrically fixedly installed on the base frame, a second fixing frame is fixedly installed on one end of the fixing rod, a screw rod is movably installed inside the second fixing frame, and a moving block connected by threads is provided on the screw rod.

[0014] Preferably, a support frame extending to the outside of the second fixed frame is fixedly mounted on the moving block, and a suction cup is mounted on the bottom of the support frame.

[0015] Preferably, mounting plates are fixedly mounted on both sides of the suction cup, and the mounting plates are fixedly connected to the second fixing frame by bolts.

[0016] Preferably, a turntable is fixedly mounted on the top of the screw rod, and two push rods are symmetrically fixedly mounted on the turntable.

[0017] Preferably, the surface of the push rod is provided with anti-slip grooves.

[0018] The beneficial technical effect of the utility model is as follows: according to the electrical conduit cold bending device of the utility model, through the setting of the bending mechanism, the electrical conduit does not need manual operation to be pressed down, and the two hydraulic telescopic rods in the bending mechanism can replace the manual operation. The output end of the hydraulic telescopic rod is started to extend to drive the first fixed frame and the pressure wheel to descend. After the pressure wheel contacts the conduit, the conduit is pressed down under the continuous extension of the hydraulic telescopic rod, so that the electrical conduit is bent in cooperation with the cold bending wheel. The bending operation does not require manual intervention, which effectively reduces the waste of manpower and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a partial cross-sectional structural schematic diagram according to a preferred embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of a preferred embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the structure of a first fixing frame according to a preferred embodiment of the utility model;

[0022] Figure 4 A structural diagram of a first Velcro and a second Velcro according to a preferred embodiment of the utility model;

[0023] Figure 5 According to a preferred embodiment of the present invention Figure 1 Enlarged view of point A in the middle;

[0024] Figure 6 The figure is a schematic diagram of the suction cup structure according to a preferred embodiment of the utility model.

[0025] In the figure: 1-base frame, 2-support frame, 3-cold bending wheel, 4-bending mechanism, 5-fixed plate, 6-hydraulic telescopic rod, 7-first fixed frame, 8-pressing wheel, 9-sponge pad, 10-first Velcro, 11-second Velcro, 12-fixed block, 13-mounting slot, 14-spring, 15-clamping rod, 16-clamping block, 17-fixed rod, 18-second fixed block, 19-screw, 20-moving block, 21-support frame, 22-suction cup, 23-mounting plate, 24-bolt, 25-turntable, 26-push rod. DETAILED DESCRIPTION

[0026] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is further described in detail below in conjunction with embodiments and drawings, but the implementation methods of the present invention are not limited thereto.

[0027] like Figure 1-Figure 6As shown, the electrical conduit cold bending device provided by the present embodiment comprises a base frame 1, and a support frame 2 fixedly mounted on the top of the base frame 1, a cold bending wheel 3 is mounted inside the support frame 2, a bending mechanism 4 is arranged on the top of the support frame 2, the bending mechanism 4 comprises two fixed plates 5 symmetrically fixedly mounted on the top of the support frame 2, a hydraulic telescopic rod 6 is fixedly mounted on the fixed plate 5, a first fixed frame 7 is fixedly mounted on the output end of the hydraulic telescopic rod 6, a pressing wheel 8 is mounted inside the first fixed frame 7, through the setting of the bending mechanism 4, the electrical conduit is bent without manual operation and pressing, and the two hydraulic telescopic rods 6 in the bending mechanism 4 can replace the manual operation, and the output end of the hydraulic telescopic rod 6 is started to extend to drive the first fixed frame 7 and the pressing wheel 8 to descend, and after the pressing wheel 8 contacts the conduit, the conduit is pressed down under the continuous extension of the hydraulic telescopic rod 6, so that the electrical conduit is bent in cooperation with the cold bending wheel 3, and the bending operation does not require manual intervention, which effectively reduces the waste of manpower and improves work efficiency.

[0028] In this embodiment, if Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the pressing wheel 8 is connected to the first fixed frame 7 through a rotating shaft, a sponge pad 9 is installed on the surface of the pressing wheel 8, a first Velcro 10 is installed on the pressing wheel 8, and a second Velcro 11 that fits with the first Velcro 10 is installed on the sponge pad 9. Two fixed blocks 12 are symmetrically fixedly installed on the surface of the support frame 2, and a mounting groove 13 is opened inside the fixed block 12. A spring 14 is fixedly installed inside the mounting groove 13, and a clamping rod 15 is fixedly installed at one end of the spring 14. Blocks 16 that are mutually engaged with the clamping rod 15 are movably installed at both ends of the cold bending wheel 3. One end of the clamping rod 15 is set to an arc shape, and the block 16 is mutually engaged with the groove in the support frame 2. By setting a rotating shaft connection between the pressing wheel 8 and the first fixed frame 7, the pressing wheel 8 can roll on the first fixed frame 7, and then the pressure on the surface of the sleeve can be relieved when the sleeve is pressed down, preventing the sleeve from being concavely marked. The sponge pad 9 can protect the surface of the sleeve to prevent the pressing wheel 8 from being worn when the pressing wheel 8 is pressed down, and the sponge pad 9 is installed on the pressing wheel 8 by the first Velcro 10 and the second Velcro 11, so that the sponge pad 9 can be disassembled and replaced when damaged. By setting the fixing block 12, the mounting groove 13, the spring 14, the clamping rod 15 and the clamping block 16, the clamping blocks 16 are installed at both ends of the cold bending wheel 3, and the cold bending wheel 3 is installed in the support frame 2 under the clamping of the clamping rod 15 and the clamping block 16. The clamping connection method can be disassembled, so that the cold bending wheel 3 can be removed from the support frame 2, so that the cold bending wheel 3 can be replaced according to the thickness of the sleeve. At the same time, one end of the clamping rod 15 is set to an arc shape, which makes it easier for the clamping rod 15 and the clamping block 16 to be installed, engaged and disassembled.

[0029] In this embodiment, if Figure 1 , Figure 2 and Figure 6 As shown, two fixing rods 17 are symmetrically fixedly installed on the base frame 1, and a second fixing frame 18 is fixedly installed on one end of the fixing rod 17. A screw 19 is movably installed inside the second fixing frame 18. A moving block 20 connected by threads is arranged on the screw 19. A support frame 21 extending to the outside of the second fixing frame 18 is fixedly installed on the moving block 20, and a suction cup 22 is installed at the bottom of the support frame 21. Through the arrangement of the fixing rod 17, the second fixing frame 18, the screw 19, the moving block 20, the support frame 21 and the suction cup 22, the screw 19 is rotated to rotate and drive the moving block 20 to move. When the moving block 20 moves, the suction cup 22 is driven to descend and contact the ground through the support frame 21. After the suction cup 22 contacts the ground, it has a certain suction force, so that the base frame 1 can be stably supported to prevent the base frame 1 from tilting and falling during processing.

[0030] In this embodiment, if Figure 1 , Figure 1 and Figure 6 As shown, mounting plates 23 are fixedly installed on both sides of the suction cup 22, and the mounting plates 23 are fixedly connected to the second fixing frame 18 by bolts 24. A turntable 25 is fixedly installed on the top of the screw rod 19, and two push rods 26 are symmetrically fixedly installed on the turntable 25, and the surface of the push rods 26 is provided with anti-skid patterns. Through the arrangement of the mounting plates 23 and the bolts 24, the suction cup 22 is connected to the support frame 21 through the bolts 24, which not only increases the firmness of the suction cup 22 on the support frame 21 and prevents the suction cup 22 from falling off during use, but also enables the suction cup 22 to be disassembled from the support frame 21, which is convenient for replacement when it is damaged. Through the arrangement of the turntable 25, the push rods 26 and the anti-skid patterns, it is convenient to push the screw rod 19 to rotate.

[0031] In this embodiment, if Figure 1-Figure 6 As shown, the working process of an electrical casing cold bending device provided in this embodiment is as follows:

[0032] Step 1: After placing the base frame 1, push the push rod 26 to rotate the screw 19. The rotation of the screw 19 causes the moving block 20 to drive the suction cup 22 to descend through the support frame 21 and contact and adsorb on the ground, thereby supporting the base frame 1 as a whole;

[0033] Step 2: Then replace the cold bending wheel 3 according to the thickness of the sleeve. When replacement is needed, first push the cold bending wheel 3 upward to disengage the blocks 16 on both sides from the engagement with the card rod 15, then flip the cold bending wheel 3 to stand upright, and then take it out of the support frame 2. When installing, first extend the cold bending wheel 3 vertically into the support frame 2, then flip it so that the blocks 16 at both ends are engaged in the grooves of the support frame 2, and then press the cold bending wheel 3 downward to engage the blocks 16 with the card rod 15 to complete the installation;

[0034] Step 3: When bending the electrical sleeve, insert the sleeve into the support frame 2 and place it above the cold bending wheel 3, then start the two hydraulic telescopic rods 6 at the same time to extend their output ends to drive the pressing wheel 8 to descend. The pressing wheel 8 descends to press the sleeve down, and the electrical sleeve is bent in cooperation with the cold bending wheel 3.

[0035] In summary, in the present embodiment, according to the electrical conduit cold bending device of the present embodiment, by setting a rotating shaft connection between the pressing wheel 8 and the first fixed frame 7, the pressing wheel 8 can roll on the first fixed frame 7, and then when the conduit is pressed down, the pressure on the surface of the conduit can be relieved to prevent the concave mark on the conduit. The sponge pad 9 is provided to protect the surface of the conduit to prevent the pressing wheel 8 from causing wear on the surface when the pressing wheel 8 is pressed down, and the sponge pad 9 is installed on the pressing wheel 8 by the first Velcro 10 and the second Velcro 11, so that the sponge pad 9 can be disassembled and replaced when damaged. By setting the fixing block 12, the mounting groove 13, the spring 14, the clamping rod 15 and the clamping block 16, the clamping blocks 16 are installed at both ends of the cold bending wheel 3, and the cold bending wheel 3 is installed in the support frame 2 under the clamping of the clamping rod 15 and the clamping block 16. The clamping connection method can be disassembled, so that the cold bending wheel 3 can be removed from the support frame 2, so that the cold bending wheel 3 can be replaced according to the thickness of the conduit. , and one end of the clamping rod 15 is arranged in an arc shape to make it easier for the clamping rod 15 and the clamping block 16 to be installed, engaged, or disassembled. Through the arrangement of the fixing rod 17, the second fixing frame 18, the screw 19, the moving block 20, the support frame 21, and the suction cup 22, the screw 19 is rotated to rotate and drive the moving block 20 to move. When the moving block 20 moves, the suction cup 22 is driven to descend and contact the ground through the support frame 21. After the suction cup 22 contacts the ground, it has a certain suction force, so that the base frame 1 can be stably supported to prevent the base frame 1 from tilting and falling during processing. Through the arrangement of the mounting plate 23 and the bolt 24, the suction cup 22 is connected to the support frame 21 through the bolt 24, which not only increases the firmness of the suction cup 22 on the support frame 21 and prevents the suction cup 22 from falling off during use, but also enables the suction cup 22 to be removed from the support frame 21, which is convenient for replacement when it is damaged. Through the arrangement of the turntable 25, the push rod 26, and the anti-slip pattern, it is convenient to push the screw 19 to rotate.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the scope disclosed by the present invention according to the technical solution and concept of the present invention, which fall within the protection scope of the present invention.

Claims

1. An electrical conduit cold bending device, comprising a base frame (1), and a support frame (2) fixedly mounted on the top of the base frame (1), wherein a cold bending wheel (3) is mounted inside the support frame (2), characterized in that: A bending mechanism (4) is provided at the top of the support frame (2), and the bending mechanism (4) comprises two fixing plates (5) symmetrically fixedly mounted on the top of the support frame (2), a hydraulic telescopic rod (6) is fixedly mounted on the fixing plates (5), a first fixing frame (7) is fixedly mounted at the output end of the hydraulic telescopic rod (6), and a pressure wheel (8) is mounted inside the first fixing frame (7).

2. The electrical casing cold bending device according to claim 1, characterized in that: The pressing wheel (8) is connected to the first fixing frame (7) via a rotating shaft.

3. The electrical bushing cold bending device according to claim 1, characterized in that: A sponge pad (9) is installed on the surface of the pressing wheel (8), a first Velcro (10) is installed on the pressing wheel (8), and a second Velcro (11) which is in contact with the first Velcro (10) is installed on the sponge pad (9).

4. The electrical casing cold bending device according to claim 1, characterized in that: Two fixing blocks (12) are symmetrically fixedly mounted on the surface of the support frame (2), a mounting groove (13) is provided inside the fixing block (12), a spring (14) is fixedly mounted inside the mounting groove (13), and a clamping rod (15) is fixedly mounted on one end of the spring (14).

5. The electrical casing cold bending device according to claim 4, characterized in that: Both ends of the cold bending wheel (3) are movably provided with a clamping block (16) that is mutually engaged with the clamping rod (15); one end of the clamping rod (15) is arranged in an arc shape; and the clamping block (16) is mutually engaged with a groove in the support frame (2).

6. The electrical casing cold bending device according to claim 1, characterized in that: Two fixing rods (17) are symmetrically fixedly mounted on the base frame (1), a second fixing frame (18) is fixedly mounted on one end of the fixing rod (17), a screw rod (19) is movably mounted inside the second fixing frame (18), and a moving block (20) connected by threads is arranged on the screw rod (19).

7. The electrical bushing cold bending device according to claim 6, characterized in that: A support frame (21) extending to the outside of the second fixed frame (18) is fixedly mounted on the moving block (20), and a suction cup (22) is mounted on the bottom of the support frame (21).

8. The electrical bushing cold bending device according to claim 7, characterized in that: Mounting plates (23) are fixedly mounted on both sides of the suction cup (22), and the mounting plate (23) is fixedly connected to the second fixing frame (18) via bolts (24).

9. The electrical casing cold bending device according to claim 6, characterized in that: A rotating disk (25) is fixedly mounted on the top of the screw rod (19), and two push rods (26) are symmetrically fixedly mounted on the rotating disk (25).

10. The electrical bushing cold bending device according to claim 9, characterized in that: The surface of the push rod (26) is provided with anti-slip grooves.

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