Adjustable bracket with fixed center of circular tube

Abstract

The utility model provides an adjustable bracket with a fixed circular tube center, and belongs to the technical field of roller brackets. The adjustable bracket with the round tube center fixed comprises a support, two supporting rods are connected to the support in a sliding mode, the round tube is supported on the two supporting rods, the two supporting rods move in the radial direction of the round tube, a pushing piece is arranged on the support, and the pushing piece synchronously pushes the two supporting rods to move. In the application, the two supporting rods moving in the radial direction of the circular tube are synchronously pushed by the pushing piece, so that the circular tubes with different diameters are supported, and meanwhile, the circle center is kept unchanged.

Description

Technical Field

[0001] The present application relates to the technical field of roller brackets, and in particular to an adjustable bracket with a circular tube center fixed therein. Background Art

[0002] During the process of cutting, welding, grinding and flanging, the round tube needs to be rotated, especially some larger round tube workpieces, which require a bracket with rollers. Different specifications of brackets are required for round tubes of different diameters.

[0003] In this regard, China's patent application number is CN202220645381.9, which discloses an adjustable pulley bracket. This solution mainly uses a screw to drive two rollers to adjust the distance, so as to adapt to round tubes of different diameters.

[0004] However, in the process of implementing the technical solution in the embodiments of the present application, the inventor of the present application found that the above technology has at least the following technical problems:

[0005] The moving trajectories of the two rollers are in the same plane. When the distance between the two rollers is adjusted, the center of the circular tube they support will change, and the grinding and flanging parts need to be adjusted accordingly, thus affecting the overall adjustment efficiency. Utility Model Content

[0006] In order to make up for the above shortcomings, the present application provides an adjustable bracket with a fixed center of a circular tube, aiming to improve the problems mentioned in the above background technology.

[0007] An embodiment of the present application provides an adjustable bracket fixed at the center of a circular tube, comprising a bracket, on which two support rods are slidably connected, on which a circular tube is supported, and the two support rods move radially along the circular tube, and a pushing member is provided on the bracket, and the pushing member synchronously pushes the two support rods to move.

[0008] In a specific embodiment, the upper end of the support rod is rotatably connected to a roller, and the roller is rollingly connected to the outer circle of the circular tube.

[0009] In the above implementation process, the roller can reduce the friction between the support rod and the round tube.

[0010] In a specific embodiment, a slide rail is provided on the bracket, a slider is slidably connected to the slide rail, and the slider is fixedly connected to the support rod.

[0011] In the above implementation process, the slide rail and the slider are used to help the support rod to move accurately, thereby ensuring that the center of the circle remains unchanged during the adjustment process.

[0012] In a specific embodiment, the pushing member includes a push plate, the push plate is slidably connected to the bracket, a slide groove is provided on the push plate, the lower end of the support rod is rotatably connected to a pulley, and the pulley rolls in the slide groove.

[0013] In the above implementation process, when the push plate moves up, the slide groove is used to push the pulleys at the lower ends of the two support rods, thereby driving the two support rods to be retracted inward synchronously to achieve the adjustment of the support radius.

[0014] In a specific embodiment, the slide groove and the support rod are perpendicular to each other.

[0015] In the above implementation process, the mutually perpendicular arrangement can reduce the rolling resistance of the pulley and the push plate on the support rod, which is beneficial to the transmission of force.

[0016] In a specific embodiment, the pushing member further includes a screw rod, the screw rod is rotatably connected to the bracket, and the screw rod is threadedly connected to the push plate.

[0017] In a specific embodiment, the lower end shaft of the screw rod is connected with a hand wheel.

[0018] In the above implementation process, the support radius is adjusted by rotating the screw rod through the hand wheel to drive the push plate to move up and down. In this embodiment, the push plate is also slidably connected to the bracket through the guide rail structure.

[0019] In a specific embodiment, a damping member is provided on the screw rod, and the damping member includes a groove wheel and an elastic push rod, the groove wheel is connected to the handwheel shaft, the push rod is installed on the bracket, and the push rod is movably pushed into the groove on the groove wheel.

[0020] In the above implementation process, when the hand wheel is turned, the groove wheel rotates, causing the front end of the push rod to slide in and out of the grooves of the array on the groove wheel in sequence, generating a damping effect, thereby increasing the locking force on the screw rod, reducing the rotation of the screw rod, and increasing the supporting stability of the support rod and the round tube. In this embodiment, the front end of the push rod is a ball, which is used to move between the grooves.

[0021] Compared with the prior art, the beneficial effect of the present application is that the pusher is used to synchronously push two support rods that move along the radial direction of the circular tube to achieve support for circular tubes of different diameters while ensuring that the center of the circle remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the implementation methods of the present application, the drawings required for use in the implementation methods will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of an adjustable bracket fixed at the center of a circular tube provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the connection relationship between the pusher and the support rod provided in the embodiment of the present application;

[0025] Figure 3 Schematic diagram of the damping member structure provided in the embodiment of the present application

[0026] In the figure: 10- bracket; 20- support rod; 30- round tube; 40- pushing member; 41- pushing plate; 42- screw rod; 43- handwheel; 50- roller; 60- slide rail; 70- slider; 80- pulley; 90- damping member; 91- groove wheel; 92- push rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0028] See also Figure 1-Figure 3 The present application provides an adjustable bracket with a fixed center of a circular tube, including a bracket 10, two supporting rods 20 are slidably connected to the bracket 10, a circular tube 30 is supported on the two supporting rods 20, the two supporting rods 20 move along the radial direction of the circular tube 30, and a pushing member 40 is provided on the bracket 10, and the pushing member 40 pushes the two supporting rods 20 to move synchronously. The pushing member 40 is used to synchronously push the two supporting rods 20 moving along the radial direction of the circular tube 30 to support the circular tubes 30 of different diameters, while ensuring that the center of the circle remains unchanged.

[0029] See also Figure 1-Figure 3 The upper end of the support rod 20 is rotatably connected with a roller 50, and the roller 50 is rollingly connected with the outer circle of the round tube 30. The roller 50 can reduce the friction between the support rod 20 and the round tube 30.

[0030] See also Figure 1-Figure 3 The bracket 10 is provided with a slide rail 60, and a slider 70 is slidably connected to the slide rail 60, and the slider 70 is fixedly connected to the support rod 20. The slide rail 60 and the slider 70 are used to help the support rod 20 to move accurately, thereby ensuring that the center of the circle remains unchanged during the adjustment process.

[0031] See also Figure 1-Figure 3The pusher 40 includes a push plate 41, which is slidably connected to the bracket 10. A slide groove is provided on the push plate 41. The lower end of the support rod 20 is rotatably connected to a pulley 80, and the pulley 80 rolls in the slide groove. When the push plate 41 moves upward, the slide groove pushes the pulleys 80 at the lower ends of the two support rods 20, thereby driving the two support rods 20 to retract inward synchronously to achieve the adjustment of the support radius.

[0032] See also Figure 1-Figure 3 , the chute is perpendicular to the support rod 20. The mutually perpendicular arrangement can reduce the rolling resistance of the pulley 80 on the support rod 20 and the push plate 41, which is conducive to the transmission of force.

[0033] See also Figure 1-Figure 3 The pusher 40 further includes a screw rod 42, which is rotatably connected to the bracket 10 and is threadedly connected to the push plate 41. The lower end of the screw rod 42 is connected to a hand wheel 43. The hand wheel 43 rotates the screw rod 42 to drive the push plate 41 to move up and down, so as to adjust the support radius. In this embodiment, the push plate 41 is also slidably connected to the bracket 10 through a guide rail structure.

[0034] See also Figure 1-Figure 3 The screw rod 42 is provided with a damping member 90, which includes a groove wheel 91 and an elastic push rod 92. The groove wheel 91 is connected to the hand wheel 43 axis, and the push rod 92 is installed on the bracket 10. The push rod 92 is movably pushed into the groove on the groove wheel 91. When the hand wheel 43 is turned, the groove wheel 91 rotates, so that the front end of the push rod 92 slides in and out of the groove array on the groove wheel 91 in turn, generating a damping effect, improving the locking force on the screw rod 42, reducing the rotation of the screw rod 42, and improving the support stability of the support rod 20 and the round tube 30.

[0035] The working principle of the adjustable bracket fixed at the center of the circular tube is as follows: according to actual needs, multiple brackets need to be arranged along the axial direction of the circular tube 30. During adjustment, the screw rod 42 is rotated by the hand wheel 43 to drive the push plate 41 to move up and down, and the pulley 80 at the lower ends of the two support rods 20 is pushed through the slide groove, thereby driving the two support rods 20 to synchronously retract or expand inward. The two support rods 20 move radially along the circular tube 30 under the constraint of the slide rail 60, so as to adapt to circular tubes 30 of different diameters and ensure that the center position of circular tubes 30 of different diameters remains unchanged. In summary, the pusher 40 is used to synchronously push the two support rods 20 moving radially along the circular tube 30 to achieve support for circular tubes 30 of different diameters while ensuring that the center position remains unchanged.

[0036] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, improvement or equivalent replacement made within the spirit and principle of the present application shall be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

Claims

1. An adjustable bracket with a fixed center of a round tube, It is characterized in that The invention comprises a support (10), wherein two support rods (20) are slidably connected to the support (10), a circular tube (30) is supported on the two support rods (20), the two support rods (20) move along the radial direction of the circular tube (30), and a pushing member (40) is provided on the support (10), and the pushing member (40) pushes the two support rods (20) to move synchronously.

2. An adjustable bracket for fixing the center of a round tube according to claim 1, It is characterized in that The upper end of the support rod (20) is rotatably connected to a roller (50), and the roller (50) is rollingly connected to the outer circle of the circular tube (30).

3. An adjustable bracket for fixing the center of a round tube according to claim 2, It is characterized in that The bracket (10) is provided with a slide rail (60), the slide rail (60) is slidably connected with a slider (70), and the slider (70) is fixedly connected to the support rod (20).

4. The adjustable bracket for fixing the center of a round tube according to claim 3, It is characterized in that The pushing member (40) comprises a pushing plate (41), the pushing plate (41) is slidably connected to the bracket (10), a sliding groove is provided on the pushing plate (41), and the lower end of the support rod (20) is rotatably connected to a pulley (80), and the pulley (80) rolls in the sliding groove.

5. An adjustable bracket for fixing the center of a round tube according to claim 4, It is characterized in that The slide groove and the support rod (20) are perpendicular to each other.

6. An adjustable bracket for fixing the center of a round tube according to claim 5, It is characterized in that The pushing member (40) further comprises a screw rod (42), wherein the screw rod (42) is rotatably connected to the bracket (10), and the screw rod (42) is threadedly connected to the pushing plate (41).

7. An adjustable bracket for fixing the center of a round tube according to claim 6, It is characterized in that The lower end of the screw rod (42) is axially connected to a hand wheel (43).

8. An adjustable bracket for fixing the center of a round tube according to claim 7, It is characterized in that The screw rod (42) is provided with a damping member (90), the damping member (90) comprising a groove wheel (91) and an elastic push rod (92), the groove wheel (91) is connected to the shaft of the hand wheel (43), the push rod (92) is installed on the bracket (10), and the push rod (92) is movably pushed into a groove on the groove wheel (91).

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