Self-resetting rotating mechanism

Abstract

The present invention relates to a self-resetting rotating mechanism, which comprises a reset tube, a driving tube, a tube sleeve and a spring. The side wall of the reset tube is longitudinally provided with a long through hole, the driving tube is movably arranged in the reset tube, and the outer wall thereof is provided with a driving shaft which is exposed outside the long through hole and moves up and down along the long through hole. The tube sleeve is movably sleeved on the outer periphery of the reset tube and is contacted and connected with the driving shaft through its inclined bottom surface. The spring is arranged in the reset tube below the driving tube and elastically supports the driving tube upward to drive the driving shaft upward to be stuck into the high point of the inclined bottom surface of the tube sleeve so that the driving tube and the reset tube are automatically reset. The reset tube is sleeved and fixed to the exposed part of the lifting shaft of a telescopic cylinder, and the lifting shaft is exposed after passing through the reset tube, the driving tube and the spring. The present invention has a simple structure and reliable performance.

Description

Technical Field

[0001] The invention relates to a structural improvement of a rotating mechanism. Background Art

[0002] Many mechanical devices are equipped with rotating mechanisms, but most of them do not have an automatic reset function, or have an automatic reset function but have poor reliability due to their complex structures. Summary of the invention

[0003] The present invention aims to provide a rotating mechanism with automatic resetting function and simple and reliable structure.

[0004] The technical solution adopted by the present invention is as follows:

[0005] Self-resetting rotating mechanism, comprising:

[0006] A reset tube; a side wall of the reset tube is longitudinally provided with a long through hole;

[0007] The driving tube is movably arranged in the reset tube, and the outer wall of the driving tube is provided with a driving shaft that is exposed outside the long through hole and moves up and down along the long through hole;

[0008] The sleeve is movably sleeved on the outer periphery of the reset tube and is in contact with the drive shaft through its inclined bottom surface, so that the drive shaft can slide along the circumferential direction of the inclined bottom surface to drive the drive tube and the reset tube to rotate;

[0009] Spring; the spring is arranged in the reset tube below the driving tube and elastically supports the driving tube upward to drive the driving shaft upward to snap into the high point of the inclined bottom surface of the tube sleeve so that the driving tube and the reset tube are automatically reset;

[0010] The reset tube is sleeved and fixed on the exposed part of the lifting shaft of a telescopic cylinder, and the lifting shaft is exposed after passing through the reset tube, the driving tube and the spring.

[0011] As a preferred solution, a driving wheel capable of rolling circumferentially along the inclined bottom surface of the pipe sleeve is provided on the driving shaft.

[0012] As a preferred solution, the driving wheel is a ball bearing and is movably sleeved on the driving shaft through its center hole.

[0013] As a preferred solution, the outer wall of the driving tube is provided with a reinforcing rod connected to the driving shaft.

[0014] As a preferred solution, the outer wall of the driving tube is provided with a boss which is movable through the long through hole, the middle part of the reinforcing rod is fitted to the outer end surface of the boss and is fixed to the boss by a first screw, the top end is fixed to the outer end surface of the driving shaft by a second screw, and the bottom end is fixed to the groove provided on the outer end surface of the boss by a clamping head provided at the end, thereby fixing the driving shaft and the boss as a whole.

[0015] As a preferred solution, a bearing groove is provided at the inner top of the sleeve, and a bearing is provided in the bearing groove for rotatably connecting the sleeve to the reset tube.

[0016] As a preferred solution, the outer wall of the pipe sleeve is provided with an axial external spline, the high point of the inclined bottom surface is provided with a concave arc groove, and the low point of the inclined bottom surface is provided with a convex arc rib.

[0017] As a preferred solution, the top end of the spring penetrates into the driving tube and supports the inner top wall of the driving tube, and the bottom end supports the spring supporting member arranged at the bottom of the reset tube; the top opening of the long through hole is closed, and the bottom opening passes through the bottom end of the reset tube.

[0018] As a preferred solution, the spring support is an end cover and is welded and fixed to the bottom end of the reset tube, thereby closing the reset tube and the bottom opening of the long through hole, and then closing the drive tube in the reset tube and the drive shaft in the long through hole.

[0019] The present invention can realize the rotation self-reset function by combining a reset tube, a drive tube, a tube sleeve and a spring, and has the rotation reset and lifting functions after being combined with a telescopic cylinder. The present invention has the advantages of being simple, reliable and widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A longitudinal sectional view of the overall structure of an embodiment of the present invention;

[0021] Figure 2 This is one of the partial structural schematic diagrams of an embodiment of the present invention;

[0022] Figure 3 This is a second schematic diagram of a partial structure of an embodiment of the present invention;

[0023] Figure 4 for Figure 3 Exploded diagram. DETAILED DESCRIPTION

[0024] The present invention is described below in conjunction with the accompanying drawings and specific embodiments.

[0025] Reference Figure 1-4 :

[0026] The self-resetting rotating mechanism comprises a reset tube 1. The side wall of the reset tube 1 is longitudinally provided with a long through hole 1.1 with a top opening closed and a bottom opening penetrating through the bottom end of the reset tube 1.

[0027] The mechanism also includes a driving tube 2; the driving tube 2 is movably arranged in the reset tube 1, and its outer wall is provided with a driving shaft 2.1 exposed outside the long through hole 1.1 and movable up and down along the long through hole 1.1, and a driving wheel 8 is provided on the driving shaft 2.1, and the driving wheel 8 is a ball bearing and is movably sleeved on the driving shaft 2.1 through its center hole.

[0028] The mechanism also includes a sleeve 3; the sleeve 3 is movably sleeved on the outer periphery of the reset tube 1 through a bearing 9 arranged in a bearing groove at the top thereof and is contacted and connected to the drive shaft 2.1 through its inclined bottom surface, so that the drive shaft 2.1 can slide circumferentially along its inclined bottom surface, and then the drive wheel 8 can roll circumferentially along its inclined bottom surface to drive the drive tube 2 and the reset tube 1 to rotate; the outer wall of the sleeve 3 is provided with an axial external spline 3.1, the high point of the inclined bottom surface is provided with a concave arc groove 3.2 for the drive wheel 8 to reset and fall into, and the low point of the inclined bottom surface is provided with a convex arc rib 3.3 for facilitating the circumferential rolling of the drive wheel 8.

[0029] The mechanism also includes a spring 4, which is arranged in the reset tube 1 below the driving tube 2, and the top end of the spring 4 penetrates into the driving tube 2 and supports the inner top wall of the driving tube 2, and the bottom end supports the spring support member 10 arranged at the bottom of the reset tube 1. The spring support member 10 is an end cover and is welded and fixed to the bottom end of the reset tube 1, thereby closing the reset tube 1 and the bottom opening of the long through hole 1.1, thereby closing the driving tube 2 in the reset tube 1 and the driving shaft 2.1 in the long through hole 1.1; the spring 4 elastically supports the driving tube 2 upward to drive the driving wheel 8 on the driving shaft 2.1 to move upward and get stuck in the concave annular groove 3.2, thereby automatically resetting the driving tube 2 and the reset tube 1.

[0030] The mechanism also includes a reinforcing rod 5. The outer wall of the driving tube 2 below the driving shaft 2.1 is provided with a boss 2.2 that movably passes through the long through hole 1.1. The middle part of the reinforcing rod 5 is fitted to the outer end surface of the boss 2.2 and is fixed to the boss 2.2 by a first screw 6, the top is fixed to the outer end surface of the driving shaft 2.1 by a second screw 7, and the bottom is fixed to the clamping groove 2.21 provided on the outer end surface of the boss 2.2 by a clamping head 5.1 provided at its bottom end, so that the driving shaft 2.1 and the boss 2.2 are fixedly connected as a whole, so as to improve the structural strength of the driving shaft 2.1 while stably restricting the driving wheel 8 on the driving shaft 2.1.

[0031] The mechanism also includes a telescopic cylinder 11, which is provided with a lifting shaft 11.1 with one end of the cylinder body exposed. The reset tube 1 is sleeved and fixed on the exposed part of the lifting shaft 11.1, and the lifting shaft 11.1 passes through the hollow pipe formed by the reset tube 1, the driving tube 2, the spring 4 and the central through hole provided on the spring support member 10 and is exposed.

[0032] When in use, the telescopic cylinder 11 can be fixedly connected to the rotating body, and the pipe sleeve 3 can be connected to the non-rotating body. The rotating body is driven to rotate by external force, and the telescopic cylinder 11 rotates accordingly. The telescopic cylinder 11 drives the reset tube 1 and the driving tube 2 to rotate, and the driving wheel 8 on the driving tube 2 can roll to any angle along the inclined bottom surface of the pipe sleeve 3. After releasing the external force, the tension of the spring 4 can drive the driving wheel 8 to automatically return to the concave ring groove 3.2, thereby driving the driving tube 2, the reset tube 2, the telescopic cylinder 11 and the rotating object to automatically reset. In addition, the telescopic shaft 11.1 can also be used to drive the rotating body to rise and fall.

Claims

1. Self-resetting rotating mechanism, characterized by include: A reset tube (1); a side wall of the reset tube (1) is longitudinally provided with a long through hole (1.1); A driving tube (2); the driving tube (2) is movably arranged in the reset tube (1), and its outer wall is provided with a driving shaft (2.1) that is exposed outside the long through hole (1.1) and moves up and down along the long through hole (1.1); The tube sleeve (3) is movably sleeved on the outer periphery of the reset tube (1) and is contact-connected to the drive shaft (2.1) through its inclined bottom surface, so that the drive shaft (2.1) can slide along the circumferential direction of its inclined bottom surface to drive the drive tube (2) and the reset tube (1) to rotate; A spring (4); the spring (4) is arranged in the reset tube (1) below the drive tube (2) and elastically supports the drive tube (2) upwards to drive the drive shaft (2.1) upwards to snap into the high point of the inclined bottom surface of the tube sleeve (3) so that the drive tube (2) and the reset tube (1) are automatically reset; The reset tube (1) is sleeved and fixed on the exposed part of the lifting shaft (11.1) of a telescopic cylinder (11), and the lifting shaft (11.1) passes through the reset tube (1), the driving tube (2) and the spring (4) and is exposed.

2. The self-resetting rotating mechanism according to claim 1, characterized in that: A driving wheel (8) which can roll circumferentially along the inclined bottom surface of the pipe sleeve (3) is provided on the driving shaft (2.1).

3. The self-resetting rotating mechanism according to claim 2, characterized in that: The driving wheel (8) is a ball bearing and is movably sleeved on the driving shaft (2.1) through its center hole.

4. The self-resetting rotating mechanism according to claim 1, characterized in that: The outer wall of the driving tube (2) is provided with a reinforcing rod (5) connected to the driving shaft (2.1).

5. The self-resetting rotating mechanism according to claim 4, characterized in that: The outer wall of the driving tube (2) is provided with a boss (2.2) that movably passes through the long through hole (1.1); the middle part of the reinforcing rod (5) is fitted to the outer end surface of the boss (2.2) and is fixed to the boss (2.2) by a first screw (6); the top end is fixed to the outer end surface of the driving shaft (2.1) by a second screw (7); and the bottom end is fixed to a clamping groove (2.21) provided on the outer end surface of the boss (2.2) by a clamping head (5.1) provided at the end, thereby fixing the driving shaft (2.1) and the boss (2.2) to be integrally connected.

6. The self-resetting rotating mechanism according to claim 1, characterized in that: A bearing groove is provided at the inner top of the pipe sleeve (3), and a bearing (9) is provided in the bearing groove for rotatably connecting the pipe sleeve (3) to the reset tube (1).

7. The self-resetting rotating mechanism according to claim 6, characterized in that: The outer wall of the pipe sleeve (3) is provided with an axial external spline (3.1), the high point of the inclined bottom surface is provided with a concave arc groove (3.2), and the low point of the inclined bottom surface is provided with a convex arc rib (3.3).

8. The self-resetting rotating mechanism according to claim 1, characterized in that: The top end of the spring (4) penetrates into the driving tube (2) and supports the inner top wall of the driving tube (2), and the bottom end supports the spring support member (10) arranged at the bottom of the reset tube (1); the top opening of the long through hole (1.1) is closed, and the bottom opening passes through the bottom end of the reset tube (1).

9. The self-resetting rotating mechanism according to claim 8, characterized in that: The spring support member (10) is an end cover and is welded and fixed to the bottom end of the reset tube (1), thereby sealing the reset tube (1) and the bottom opening of the long through hole (1.1), and further sealing the drive tube (2) in the reset tube (1) and the drive shaft (2.1) in the long through hole (1.1).

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