Traction device for laying bendable metal conduit

Abstract

The utility model relates to the technical field of laying of metal conduits, and discloses a flexible traction device for laying of metal conduits, which comprises a support, a hollow column is fixedly mounted on the upper surface of the support, and a laying auxiliary mechanism is arranged on the hollow column. The laying auxiliary mechanism comprises a metal pipe storage disc, a stand column, a fixing plate, a first lead screw, a first bevel gear, a second bevel gear, a fixing roller, a rotary knob, an extension plate, a first limiting wheel, a second limiting wheel, a motor, a second lead screw, a moving ring, a supporting rod, a clamping plate, a first sliding groove, a second sliding groove, a spring and a T-shaped clamping plate. The motor drives the second lead screw to rotate to drive the moving ring, the supporting rod and the clamping plate to cooperatively operate, so that the clamping plate is tightly attached to the inner surface of the metal guide pipe and is matched with the spring and the T-shaped clamping plate to conduct downward clamping, a multi-dimensional fixing mechanism is formed, the metal guide pipe is effectively prevented from loosening and deforming in the unwinding and laying process, and the continuity and stability of laying operation are ensured.

Description

Technical Field

[0001] This utility model relates to the field of metal conduit laying technology, specifically a traction device for laying flexible metal conduits. Background Technology

[0002] Metal conduit installation is an important part of electrical installation engineering. It is mainly used to protect wires and cables from mechanical damage, corrosion, fire and other hazards, while also facilitating the maintenance and replacement of the lines.

[0003] Existing metal conduits lack limiting mechanisms during installation, simply storing them in a tray. When the conduit becomes loose, the internal wires may rub against the conduit wall due to shaking, leading to insulation damage over time and causing electrical faults such as short circuits and leakage. Especially in vibrating environments, such as near industrial equipment, loose metal conduits may cut wires due to frequent swinging, increasing the risk of electric shock. This not only weakens the conduit's protective function for the wiring but may also cause safety accidents and shorten the system's lifespan. Therefore, a traction device for laying flexible metal conduits is proposed. Summary of the Invention

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a traction device for laying flexible metal conduits, which solves the problem of inconvenient metal conduit laying.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a traction device for laying flexible metal conduits, including a bracket, wherein a hollow column is fixedly installed on the upper surface of the bracket;

[0007] The hollow column is equipped with a laying auxiliary mechanism, which includes a metal pipe storage tray, a column, a fixing plate, a first lead screw, a first bevel gear, a second bevel gear, a fixing roller, a knob, an extension plate, a first limit wheel, a second limit wheel, a motor, a second lead screw, a moving ring, a support rod, a clamping plate, a first slide groove, a second slide groove, a spring, and a T-shaped clamping plate.

[0008] Preferably, the metal tube storage tray is fixedly installed on the front surface of the hollow column, and four first sliding grooves are formed on the front surface of the metal tube storage tray;

[0009] The second lead screw is rotatably connected to the rear surface of the metal tube storage tray.

[0010] Preferably, the motor is fixedly installed in the inner wall of the hollow column, and the motor is fixedly installed at the rear end of the second lead screw;

[0011] The movable ring is threaded onto the outer surface of the second lead screw.

[0012] Preferably, the four support rods are rotatably connected to the outer surface of the moving ring, the four clamping plates are rotatably connected to the four support rods at one end away from the moving ring, and the four clamping plates are slidably sleeved in the inner wall of the four first sliding grooves.

[0013] Preferably, the four second slide grooves are formed on the opposite sides of the four clamping plates, the four springs are respectively fixedly installed in the inner walls of the four second slide grooves, the vertical plates of the four T-shaped clamping plates are respectively fixedly installed at the rear ends of the four springs, and the vertical plates of the four T-shaped clamping plates are respectively slidably connected to the four second slide grooves.

[0014] Preferably, the column is fixedly installed on the front surface of the metal tube storage tray, the fixing plate is fixedly installed on the outer surface of the column, and the first lead screw is rotatably connected to the outer surface of the fixing plate;

[0015] The first bevel gear is fixedly sleeved on the outer surface of the first lead screw.

[0016] Preferably, the second bevel gear meshes with the outer surface of the first bevel gear, the fixed roller is fixedly sleeved on the inner surface of the second bevel gear, and the upper end of the fixed roller extends through the outer surface of the fixed plate.

[0017] The knob is fixedly installed on the upper end of the fixed roller.

[0018] Preferably, the extension plate is threaded onto the outer surface of the first lead screw, and the extension plate slides through the left surface of the fixed plate;

[0019] The first limiting wheel is located on the lower surface of the extension plate, and the second limiting wheel is located on the lower surface of the fixed plate.

[0020] Compared with the prior art, this utility model provides a traction device for laying flexible metal conduits, which has the following advantages:

[0021] 1. This flexible metal conduit laying traction device uses a motor to drive the second lead screw to rotate, which in turn drives the moving ring, support rod and clamp to work together, so that the clamp tightly fits the inner surface of the metal conduit. With the help of spring and T-shaped clamp, it clamps downward to form a multi-dimensional fixing mechanism, which effectively prevents the metal conduit from loosening and deforming during the unwinding and laying process, and ensures the continuity and stability of the laying operation.

[0022] 2. The flexible metal conduit laying traction device utilizes an adjustment mechanism consisting of a knob, a bevel gear set, and a first lead screw to easily adjust the distance between the first and second limit wheels, thereby adapting to the laying needs of metal conduits of different diameters, improving the versatility and practicality of the device, and reducing construction costs and equipment replacement frequency. Attached Figure Description

[0023] Figure 1This is a schematic diagram of the structure of a traction device for laying flexible metal conduits according to the present invention;

[0024] Figure 2 This is a schematic diagram of the metal tube storage tray structure of this utility model;

[0025] Figure 3 This utility model Figure 2 Enlarged view of the structure at point B in the middle;

[0026] Figure 4 This is a schematic diagram of the traction device for laying flexible metal conduits according to this utility model.

[0027] Figure 5 This utility model Figure 1 Enlarged view of the structure at point A in the middle.

[0028] In the diagram: 1. Bracket; 2. Metal tube storage tray; 3. Hollow column; 4. Upright column; 5. Fixing plate; 6. First lead screw; 7. First bevel gear; 8. Second bevel gear; 9. Fixing roller; 10. Knob; 11. Extension plate; 12. First limiting wheel; 13. Second limiting wheel; 14. Motor; 15. Second lead screw; 16. Moving ring; 17. Support rod; 18. Clamping plate; 19. First slide groove; 20. Second slide groove; 21. Spring; 22. T-shaped clamping plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-5 This utility model provides a new technical solution: a traction device for laying flexible metal conduits, including a bracket 1, on the upper surface of the bracket 1, a hollow column 3 is fixedly installed;

[0031] The hollow column 3 is equipped with a laying auxiliary mechanism, which includes a metal pipe storage tray 2, a column 4, a fixing plate 5, a first lead screw 6, a first bevel gear 7, a second bevel gear 8, a fixing roller 9, a knob 10, an extension plate 11, a first limiting wheel 12, a second limiting wheel 13, a motor 14, a second lead screw 15, a moving ring 16, a support rod 17, a clamping plate 18, a first sliding groove 19, a second sliding groove 20, a spring 21, and a T-shaped clamping plate 22.

[0032] Furthermore, the metal tube storage tray 2 is fixedly installed on the front surface of the hollow column 3, and four first grooves 19 are formed on the front surface of the metal tube storage tray 2.

[0033] The second lead screw 15 is rotatably connected to the rear surface of the metal tube storage tray 2.

[0034] Furthermore, the motor 14 is fixedly installed in the inner wall of the hollow column 3, and the motor 14 is fixedly installed at the rear end of the second lead screw 15;

[0035] The movable ring 16 is threaded onto the outer surface of the second lead screw 15.

[0036] Furthermore, four support rods 17 are rotatably connected to the outer surface of the moving ring 16, and four clamping plates 18 are rotatably connected to the four support rods 17 at the ends away from the moving ring 16. The four clamping plates 18 are slidably sleeved in the inner walls of the four first sliding grooves 19.

[0037] Furthermore, four second slide grooves 20 are formed on the opposite side of the four clamping plates 18, four springs 21 are respectively fixedly installed in the inner wall of the four second slide grooves 20, and the vertical plates of the four T-shaped clamping plates 22 are respectively fixedly installed at the rear end of the four springs 21, and the vertical plates of the four T-shaped clamping plates 22 are respectively slidably connected to the four second slide grooves 20.

[0038] Furthermore, the column 4 is fixedly installed on the front surface of the metal tube storage tray 2, the fixing plate 5 is fixedly installed on the outer surface of the column 4, and the first lead screw 6 is rotatably connected to the outer surface of the fixing plate 5.

[0039] The first bevel gear 7 is fixedly sleeved on the outer surface of the first lead screw 6.

[0040] Furthermore, the second bevel gear 8 is meshed with the outer surface of the first bevel gear 7, and the fixed roller 9 is fixedly sleeved on the inner surface of the second bevel gear 8, with the upper end of the fixed roller 9 penetrating through the outer surface of the fixed plate 5.

[0041] The knob 10 is fixedly installed on the upper end of the fixed roller 9.

[0042] Furthermore, the extension plate 11 is threaded onto the outer surface of the first lead screw 6, and the extension plate 11 slides through the left surface of the fixed plate 5.

[0043] The first limiting wheel 12 is disposed on the lower surface of the extension plate 11, and the second limiting wheel 13 is disposed on the lower surface of the fixing plate 5.

[0044] When using this flexible metal conduit laying traction device, the metal conduit is placed in the metal pipe storage tray 2. The motor 14 is started, driving the second lead screw 15, which is fixedly mounted at the output end, to rotate. At this time, the moving ring 16, threaded on the outer surface of the second lead screw 15, moves forward through the threads on its outer surface. The second lead screw 15 drives the four support rods 17, which are rotatably connected to its outer surface, to move to the left. As the four support rods 17 move to the left, they gradually become vertical. Simultaneously, the four support rods 17 apply opposing thrusts to the front rotating connecting clamp 18. The four clamps 18 slide in opposite directions within the inner walls of the four first sliding grooves 19. At this time, the four clamps 18 come close to the inner surface of the annular metal conduit, squeezing it and making it compact. During this process, the spring 21 expands, applying a downward thrust to the T-shaped clamp 22 fixed at the lower end to compress the metal conduit. For clamping and fixing, the motor 14 can be started during the unwinding and laying process to make the clamping plate 18 tightly adhere to the inner surface of the metal conduit to prevent it from becoming loose. The unwinding can be guided by passing the end of the metal conduit between the first limiting wheel 12 and the second limiting wheel 13. By rotating the knob 10, the knob 10 drives the fixed roller 9 fixedly installed on the lower surface to rotate. The fixed roller 9 drives the second bevel gear 8 fixedly sleeved on the outer surface to rotate. The second bevel gear 8 drives the first bevel gear 7 meshing with the outer surface to rotate. The first bevel gear 7 drives the first lead screw 6 fixedly sleeved on the inner surface to rotate. At this time, the extension plate 11 threaded on the outer surface of the first lead screw 6 moves to the left through the thread set on the outer surface of the first lead screw 6. At this time, the first lead screw 6 drives the first limiting wheel 12 fixedly installed on the lower surface to move to the left. At this time, the distance between the first limiting wheel 12 and the second limiting wheel 13 can be adjusted to guide the laying of metal conduits of different diameters.

[0045] This flexible metal conduit laying traction device uses a motor 14 to drive the second lead screw 15 to rotate, which in turn drives the moving ring 16, support rod 17, and clamping plate 18 to work together. This allows the clamping plate 18 to fit tightly against the inner surface of the metal conduit, and, together with the spring and T-shaped clamping plate 22, clamps it downwards, forming a multi-dimensional fixing mechanism. This effectively prevents the metal conduit from loosening and deforming during the unwinding and laying process, ensuring the continuity and stability of the laying operation. The flexible metal conduit laying traction device also uses an adjustment mechanism composed of a knob 10, a bevel gear set, and a first lead screw 6 to easily adjust the distance between the first limit wheel 12 and the second limit wheel 13, thereby adapting to the laying needs of metal conduits of different diameters. This improves the versatility and practicality of the device and reduces construction costs and equipment replacement frequency.

[0046] Structural Description:

[0047] Bracket 1: As the basic support structure of the entire traction device, it is fixedly installed on the working surface, providing a stable installation platform for all subsequent components, ensuring that the device remains balanced during the laying of the conduit and avoiding shaking.

[0048] Hollow column 3: Vertically fixed to the upper surface of bracket 1, used to install motor 14 inside and connected to metal tube storage tray 2 outside. It also serves as an intermediate carrier for power transmission, transmitting the power of the motor to other components through internal or external structures.

[0049] Metal pipe storage tray 2: fixed on the front surface of hollow column 3, used to store flexible metal conduits to be laid. The four first sliding grooves 19 on its front surface provide sliding tracks for clamping plate 18. The second lead screw 15 on the back is linked with motor 14 to realize clamping control of conduit.

[0050] Column 4: Fixed to the front surface of the metal tube storage tray 2, extending upward to support the fixing plate 5, ensuring that the fixing plate 5 and the traction transmission structure above it maintain a stable installation height and position.

[0051] Fixed plate 5: Installed on the outer surface of column 4, it serves as a support frame for components such as first lead screw 6 and fixed roller 9, providing a stable mounting plane to ensure the accurate axial position of the traction transmission structure and facilitate bevel gear meshing and lead screw rotation.

[0052] First lead screw 6: Rotatably connected to the outer surface of fixed plate 5, with first bevel gear 7 fixedly sleeved on its outer surface. By rotating the lead screw, the extension plate 11 can be moved axially, thereby adjusting the height of the first limit wheel 12. It also serves as one of the driving components of the bevel gear transmission.

[0053] First bevel gear 7: Fixedly sleeved on the first lead screw 6, meshing with the second bevel gear 8, converting the rotational motion of the first lead screw into vertical rotational motion, driving the fixed roller 9 to rotate, and realizing the transmission of traction power to the guide tube.

[0054] The second bevel gear 8 meshes with the first bevel gear 7, and a fixed roller 9 is fixedly sleeved on its inner surface. The power of the first lead screw is transmitted to the fixed roller 9 through gear transmission, so that the fixed roller generates traction force when it rotates, pulling the guide tube forward.

[0055] Fixed roller 9: It is coaxially fixed with the second bevel gear 8, and its upper end passes through the fixed plate 5 and is connected to the knob 10. When it rotates, it pulls the guide tube through the surface friction force. When the knob 10 is turned manually, it can directly drive the fixed roller to rotate, so as to realize manual assisted traction.

[0056] Knob 10: Fixed to the upper end of the fixed roller 9, serving as a manually operated component. Rotating the knob allows direct control of the rotation of the fixed roller 9, facilitating manual traction of the guide tube when the motor is not running or when fine adjustments are required, thus improving operational flexibility.

[0057] Extension plate 11: threaded on the first lead screw 6, it can slide along the lead screw axis. The lower surface is equipped with the first limiting wheel 12, which cooperates with the second limiting wheel 13 on the lower surface of the fixed plate 5 to form an upper and lower clamping structure for the conduit, preventing the conduit from deviating from the path during the laying process.

[0058] First limiting wheel 12: Installed on the lower surface of extension plate 11, it cooperates with second limiting wheel 13 to clamp the conduit. By adjusting the height of extension plate 11 (rotating first lead screw 6), it can adapt to conduits of different diameters or bending angles, ensuring that the conduit is laid in the predetermined direction.

[0059] The second limiting wheel 13 is installed on the lower surface of the fixing plate 5 and forms a clamping structure with the first limiting wheel 12. It fixes the lower position of the conduit and works with the first limiting wheel to restrict the up and down movement of the conduit, ensuring the stability of the laying path.

[0060] Motor 14: Fixedly installed on the inner wall of hollow column 3, serving as the power source of the device. Its output shaft is connected to the second lead screw 15. The rotation of the motor drives the second lead screw to rotate, thereby driving the moving ring 16 to move along the lead screw axis, realizing the automatic clamping or release of the clamping plate 18.

[0061] The second lead screw 15 is rotatably connected to the back of the metal tube storage tray 2. One end is fixed to the output shaft of the motor 14, and the other end is threaded to engage with the moving ring 16, converting the rotational motion of the motor into the linear motion of the moving ring and controlling the sliding of the clamping plate 18.

[0062] Moving ring 16: It is threaded onto the outer surface of the second lead screw 15 and moves axially as the lead screw rotates. The outer surface is rotatably connected to four support rods 17. The support rods drive the clamping plate 18 to slide in the first slide groove 19 to achieve the clamping or loosening action of the guide tube.

[0063] Support rod 17: One end is rotatably connected to the outer surface of the moving ring 16, and the other end is rotatably connected to the clamping plate 18. As a transmission link, it converts the linear motion of the moving ring into the radial sliding of the clamping plate 18 in the first slide groove 19, ensuring that the four clamping plates move synchronously and clamp the guide tube evenly.

[0064] Clamping plate 18: Rotatably connected to the end of support rod 17, slidably sleeved in the first slide groove 19, moves closer to or away from the conduit as the moving ring 16 moves, and is used to directly clamp the outer wall of the conduit. The second slide groove 20 and spring 21 on its back can adaptively adjust the clamping force.

[0065] First groove 19: Four grooves are formed on the front surface of the metal tube storage tray 2. They provide sliding tracks for the clamping plate 18, restrict the movement direction of the clamping plate, and ensure that the clamping plate moves synchronously in the radial direction to evenly clamp the tube.

[0066] The second slide groove 20 is located on the opposite side of the clamping plate 18. A spring 21 and a T-shaped clamping plate 22 are installed inside to provide an elastic buffer space for the clamping structure, allowing the T-shaped clamping plate to slide along the slide groove.

[0067] Spring 21: Fixed to the inner wall of the second slide groove 20, with the rear end connected to the vertical plate of the T-shaped clamp 22. It pushes the T-shaped clamp to fit against the surface of the conduit through elastic force, providing buffer when clamping, avoiding hard compression that could cause the conduit to deform, and enhancing the stability of clamping.

[0068] T-shaped clamp 22: The vertical plate is slidably connected to the second slide groove 20 and pushed by the spring 21. The horizontal plate directly contacts the outer wall of the conduit. The flexible clamping of the conduit is achieved through elastic fit, which can not only ensure the clamping force, but also adapt to the bending shape of the conduit and reduce damage.

[0069] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A traction device for laying flexible metal conduits, comprising a support (1), characterized in that: A hollow column (3) is fixedly installed on the upper surface of the bracket (1). The hollow column (3) is equipped with a laying auxiliary mechanism, which includes a metal pipe storage tray (2), a column (4), a fixing plate (5), a first lead screw (6), a first bevel gear (7), a second bevel gear (8), a fixing roller (9), a knob (10), an extension plate (11), a first limiting wheel (12), a second limiting wheel (13), a motor (14), a second lead screw (15), a moving ring (16), a support rod (17), a clamping plate (18), a first sliding groove (19), a second sliding groove (20), a spring (21), and a T-shaped clamping plate (22).

2. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The metal tube storage tray (2) is fixedly installed on the front surface of the hollow column (3), and four first sliding grooves (19) are opened on the front surface of the metal tube storage tray (2); The second lead screw (15) is rotatably connected to the rear surface of the metal tube storage tray (2).

3. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The motor (14) is fixedly installed in the inner wall of the hollow column (3), and the motor (14) is fixedly installed at the rear end of the second lead screw (15); The movable ring (16) is threaded onto the outer surface of the second lead screw (15).

4. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The four support rods (17) are rotatably connected to the outer surface of the moving ring (16), and the four clamping plates (18) are rotatably connected to one end of the four support rods (17) away from the moving ring (16). The four clamping plates (18) are slidably sleeved in the inner wall of the four first sliding grooves (19).

5. The traction device for laying flexible metal conduits according to claim 1, characterized in that: Four second slide grooves (20) are opened on the opposite side of four clamps (18), four springs (21) are fixedly installed in the inner wall of the four second slide grooves (20), the vertical plates of the four T-shaped clamps (22) are fixedly installed at the rear end of the four springs (21), and the vertical plates of the four T-shaped clamps (22) are slidably connected to the four second slide grooves (20).

6. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The column (4) is fixedly installed on the front surface of the metal tube storage tray (2), the fixing plate (5) is fixedly installed on the outer surface of the column (4), and the first lead screw (6) is rotatably connected to the outer surface of the fixing plate (5); The first bevel gear (7) is fixedly sleeved on the outer surface of the first lead screw (6).

7. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The second bevel gear (8) meshes with the outer surface of the first bevel gear (7), and the fixed roller (9) is fixedly sleeved on the inner surface of the second bevel gear (8). The upper end of the fixed roller (9) extends through the outer surface of the fixed plate (5). The knob (10) is fixedly installed on the upper end of the fixed roller (9).

8. The traction device for laying flexible metal conduits according to claim 1, characterized in that: The extension plate (11) is threaded onto the outer surface of the first lead screw (6), and the extension plate (11) slides through the left surface of the fixed plate (5). The first limiting wheel (12) is located on the lower surface of the extension plate (11), and the second limiting wheel (13) is located on the lower surface of the fixing plate (5).

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