Spring return device

By cooperating with the guide rail slider and the return spring, the spring sway is limited, which solves the problem of unstable rebound in the existing spring return device and achieves higher return accuracy and stability.

CN223814285UActive Publication Date: 2026-01-20GUANGDONG AOPUTO ROBOT TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520256049.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2026-01-20
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing spring return devices are prone to nonlinear movement when the spring rebounds, leading to unstable return and affecting accuracy.

Method used

The upper and lower guide rail sliders work in conjunction with the reset spring. The guide rail limits the spring's wobbling, ensuring stability during the return process. Magnets and guide posts provide directional movement, and limit posts and control rods combine to achieve precise return.

Benefits of technology

This improves the stability and accuracy of the spring's return to center, prevents the spring from wobbling during rebound, and maintains the stability of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spring return, in particular to a spring return device which comprises an upper shell, a lower shell and a return assembly, the return assembly comprises a floating middle plate, an upper guide rail sliding block and a lower guide rail sliding block, a first containing groove is formed in the bottom face of the upper shell, and a second containing groove is formed in the top face of the lower shell. An upper mounting part is arranged at the position, close to the first containing groove, of the top face of the floating middle plate, a lower mounting part is arranged at the position, close to the second containing groove, of the bottom face of the floating middle plate, mounting holes are formed in the upper mounting part and the lower mounting part correspondingly, and reset springs are mounted at the two ends of the inner sides of the mounting holes correspondingly. Control grooves are formed in the top surface of the upper mounting part and the bottom surface of the lower mounting part, control rods are mounted in the control grooves and extend towards the direction of the mounting hole, the upper guide rail sliding block is mounted in the first containing groove, the lower guide rail sliding block is mounted in the second containing groove, and when the spring rebounds, the guide sliding rail can limit the spring and prevent the spring from shaking; and the stable effect of the spring during return is maintained.
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Description

TECHNICAL FIELD

[0001] The utility model relates to spring return technology field especially is a kind of spring return device. BACKGROUND

[0002] The return device is a kind of mechanical or electronic system for making moving parts (such as wheels, steering wheels, mechanical arms, etc.) can automatically restore to original position after being deviated from original position by external force, it is widely applied in many fields, especially in automobile, mechanical equipment and industrial automation, wherein the existing return device is divided into mechanical return device, hydraulic return device and electronic return device etc.;The return device has the effect of automatically restoring original position, improving stability, increasing maneuverability and reducing wear.

[0003] The existing spring return device has the effect of return when being used, but due to the lack of limit of spring when stretching or rebounding, it is inevitable that there will be part nonlinear movement when spring rebounds, which will cause unstable situation in the process of spring return, affect the precision of return, therefore, the present application provides a kind of spring return device to solve the above technical problems. UTILITY MODEL CONTENT

[0004] The utility model aims at realizing through the following mode: a kind of spring return device, including upper shell, lower shell and return assembly, return assembly is installed between upper shell and lower shell, return assembly includes floating middle plate, upper guide rail sliding block and lower guide rail sliding block, the bottom surface of upper shell is equipped with first accommodating groove, the top surface of lower shell is equipped with second accommodating groove, floating middle plate is movably arranged between first accommodating groove and second accommodating groove, the top surface of floating middle plate is equipped with upper mounting portion near the position of first accommodating groove, the bottom surface of floating middle plate is equipped with lower mounting portion near the position of second accommodating groove, and upper mounting portion and lower mounting portion are vertically crossed, the middle part of upper mounting portion and the middle part of lower mounting portion are all equipped with mounting hole, and the both ends of mounting hole inner side are all equipped with reset spring, the top surface of upper mounting portion and the bottom surface of lower mounting portion are all equipped with control slot, control rod is movably installed in control slot, and control rod extends towards mounting hole, upper guide rail sliding block is installed in first accommodating groove, and upper guide rail sliding block is attached to upper mounting portion, lower guide rail sliding block is installed in second accommodating groove, and lower guide rail sliding block is attached to lower mounting portion, and one end of the top surface of upper mounting portion and one end of the bottom surface of lower mounting portion are all equipped with magnet.

[0005] In the above description, as a further scheme, the upper guide rail slider is provided with an upper fixed slider on the side away from the upper mounting part, the lower guide rail slider is provided with a lower fixed slider on the side away from the lower mounting part, an upper guide column is arranged between the upper fixed slider and the upper guide rail slider, a lower guide column is arranged between the lower fixed slider and the lower guide rail slider, a connecting screw hole is formed on the top surface of the upper fixed slider and the bottom surface of the lower fixed slider, and the upper shell and the lower shell are connected with the lower fixed slider and the upper fixed slider through fixing bolts matched with the connecting screw holes; the upper guide rail slider and the lower guide rail slider are used to provide a directional movement effect.

[0006] In the above description, as a further scheme, the two ends of the mounting hole are provided with internal threads, a connecting block is arranged on the end of the reset spring close to the internal thread, an outer cylindrical surface of the connecting block is provided with external threads matched with the internal threads, and a twisting groove is formed on the side of the connecting block away from the reset spring.

[0007] In the above description, as a further scheme, the two sides of the control groove are provided with centering grooves, the centering grooves extend through and penetrate into the inside of the mounting hole, the centering grooves are filled with limiting columns, a spring sleeve is arranged on the side of the reset spring close to the limiting column, adjusting holes are formed on the positions of the upper shell and the lower shell close to the mounting hole, and the adjusting holes are concentric with the mounting hole; the centering grooves and the limiting columns are used to provide a centering effect of the spring.

[0008] In the above description, as a further scheme, the first accommodating groove and the second accommodating groove are provided with connecting grooves matched with the control rod on the positions close to the control rod, and the connecting grooves are connected with the control rod; the connecting grooves are used to provide a connecting effect between the control rod and the upper shell and the lower shell.

[0009] In the above description, as a further scheme, the two sides of the second accommodating groove are provided with connecting holes, the connecting holes extend through and penetrate into the bottom surface of the lower shell, and connecting bolts are arranged in the connecting holes; the connecting bolts are used to provide a fixed mounting effect.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: the upper guide rail slider is arranged in the first accommodating groove and is attached to the upper mounting part, the lower guide rail slider is arranged in the second accommodating groove and is attached to the lower mounting part, the upper guide rail slider and the lower guide rail slider can provide a more stable returning effect with the reset spring, the guide rail can limit the spring when the spring rebounds, the spring is prevented from shaking, and the stability effect of the spring returning is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a perspective structural schematic view of a spring returning device;

[0012] Figure 2Is the internal structure of the spring return device of the utility model schematic diagram;

[0013] Figure 3 Is the structure of the spring return device of the utility model exploded schematic diagram;

[0014] Figure 4 Is the structure of the spring return device of the utility model another angle exploded schematic diagram;

[0015] Figure 5 Is the structure of the spring return device of the utility model Figure 3 Local enlarged schematic diagram of structure A in the utility model;

[0016] In the figure: 1 - upper shell, 2 - lower shell, 3 - floating middle plate, 4 - upper guide rail slider, 5 - lower guide rail slider;

[0017] 6 - first accommodating groove, 7 - second accommodating groove, 8 - upper mounting portion, 9 - lower mounting portion, 10 - mounting hole;

[0018] 11 - reset spring, 12 - control groove, 13 - control rod, 14 - magnet, 15 - upper fixed slider;

[0019] 16 - lower fixed slider, 17 - upper guide column, 18 - lower guide column, 19 - connecting screw hole, 20 - fixed bolt;

[0020] 21 - internal thread, 22 - connecting block, 23 - external thread, 24 - twisting groove, 25 - centering groove, 26 - limiting column;27 - spring sleeve, 28 - adjusting hole, 29 - connecting groove, 30 - connecting hole, 31 - connecting bolt. Specific embodiments

[0021] The utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0022] In this embodiment, please refer to Figures 1-5A spring return device, which is specifically implemented, comprises an upper shell 1, a lower shell 2 and a return assembly, the return assembly is installed between the upper shell 1 and the lower shell 2, the return assembly comprises a floating middle plate 3, an upper guide rail slider 4 and a lower guide rail slider 5, the bottom surface of the upper shell 1 is provided with a first accommodating groove 6, the top surface of the lower shell 2 is provided with a second accommodating groove 7, the floating middle plate 3 is movably arranged between the first accommodating groove 6 and the second accommodating groove 7, the top surface of the floating middle plate 3 is provided with an upper mounting portion 8 near the position of the first accommodating groove 6, the bottom surface of the floating middle plate 3 is provided with a lower mounting portion 9 near the position of the second accommodating groove 7, the upper mounting portion 8 and the lower mounting portion 9 are vertically crossed, the middle part of the upper mounting portion 8 and the middle part of the lower mounting portion 9 are both provided with a mounting hole 10, the two ends of the inner side of the mounting hole 10 are both provided with a reset spring 11, the top surface of the upper mounting portion 8 and the bottom surface of the lower mounting portion 9 are both provided with a control groove 12, the control groove 12 is movably provided with a control rod 13, the control rod 13 extends towards the direction of the mounting hole 10, the upper guide rail slider 4 is installed in the first accommodating groove 6, and the upper guide rail slider 4 is attached to the upper mounting portion 8, the lower guide rail slider 5 is installed in the second accommodating groove 7, and the lower guide rail slider 5 is attached to the lower mounting portion 9, and one end of the top surface of the upper mounting portion 8 and one end of the bottom surface of the lower mounting portion 9 are both provided with a magnet 14.

[0023] The side of the upper guide rail slider 4 away from the upper mounting portion 8 is provided with an upper fixed slider 15, the side of the lower guide rail slider 5 away from the lower mounting portion 9 is provided with a lower fixed slider 16, the upper fixed slider 15 and the upper guide rail slider 4 are provided with an upper guide column 17, the lower fixed slider 16 and the lower guide rail slider 5 are provided with a lower guide column 18, the top surface of the upper fixed slider 15 and the bottom surface of the lower fixed slider 16 are both provided with a connecting screw hole 19, and the upper shell 1 and the lower shell 2 are connected with the lower fixed slider 16 and the upper fixed slider 15 through fixed bolts 20 matched with the connecting screw hole 19.

[0024] The two ends of the mounting hole 10 are both provided with internal threads 21, the end of the reset spring 11 close to the internal threads 21 is provided with a connecting block 22, the outer cylindrical surface of the connecting block 22 is provided with external threads 23 matched with the internal threads 21, and the side of the connecting block 22 away from the reset spring 11 is provided with a twisting groove 24.

[0025] The two sides of the control groove 12 are both provided with a centering groove 25, the centering groove 25 extends through and penetrates to the inner side of the mounting hole 10, the centering groove 25 is filled with a limiting column 26, the side of the reset spring 11 close to the limiting column 26 is provided with a spring sleeve 27, the positions of the upper shell 1 and the lower shell 2 close to the mounting hole 10 are provided with adjusting holes 28, and the adjusting holes 28 are concentric with the mounting hole 10.

[0026] The positions of the first accommodating groove 6 and the second accommodating groove 7 close to the control rod 13 are provided with connecting grooves 29 matched with the control rod 13, and the connecting grooves 29 are connected with the control rod 13.

[0027] The second accommodating groove 7 is provided with connecting holes 30 on both sides, the connecting holes 30 extend in the direction of the bottom surface of the lower shell 2, and connecting bolts 31 are installed in the connecting holes 30.

[0028] The returning process of the utility model: when the deviation occurs, the control rod 13 will move in the control groove 12, and the control rod 13 will abut against the reset spring 11 on the deviation side, when returning, the reset spring 11 on the abutted side will rebound, and the control rod 13 will move in the control groove 12 towards the direction of the limiting column 26 when rebounding, when the control rod 13 moves to be aligned with the limiting column 26, the returning is completed, and the control rod 13 will drive the upper shell 1 or the lower shell 2 to displace, and the upper guide rail sliding block 4 and the lower guide rail sliding block 5 will provide the effect of spring centering reset.

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0030] In addition, in the description of the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. In the description of the utility model, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] Finally, it should be noted that: the above examples, only for the specific embodiments of the present application, to illustrate the technical scheme of the present application, rather than limit it, the scope of protection of the present application is not limited to this, although the foregoing detailed description of the present application is made with reference to the foregoing examples, those skilled in the art should understand: any familiar with the technical field of the technical personnel in the technical range disclosed by the present application, it still can be modified or easily thought of changes to the technical scheme recorded in the foregoing examples, or part of the technical features of the equivalent replacement; and these modifications, changes or replacement, without the corresponding technical solutions of the essence of the present application deviate from the spirit and scope of the present application embodiment technical scheme, all should be covered in the scope of protection of the present application. Therefore, the scope of protection of the present application should be subject to the scope of protection of the claims.

Claims

1. A spring return device comprising an upper housing, a lower housing, and a return assembly mounted between the upper housing and the lower housing, characterized in that: The back-to-normal assembly comprises a floating middle plate, an upper guide rail slider and a lower guide rail slider, the bottom surface of the upper shell is provided with a first accommodating groove, the top surface of the lower shell is provided with a second accommodating groove, the floating middle plate is movably arranged between the first accommodating groove and the second accommodating groove, the top surface of the floating middle plate is provided with an upper mounting portion at a position close to the first accommodating groove, the bottom surface of the floating middle plate is provided with a lower mounting portion at a position close to the second accommodating groove, the upper mounting portion and the lower mounting portion are vertically crossed, the middle part of the upper mounting portion and the middle part of the lower mounting portion are provided with mounting holes, the two ends of the inner side of the mounting hole are provided with return springs, the top surface of the upper mounting portion and the bottom surface of the lower mounting portion are provided with control grooves, control rods are movably arranged in the control grooves, the control rods extend towards the mounting holes, the upper guide rail slider is arranged in the first accommodating groove and is attached to the upper mounting portion, the lower guide rail slider is arranged in the second accommodating groove and is attached to the lower mounting portion, and one end of the top surface of the upper mounting portion and one end of the bottom surface of the lower mounting portion are provided with magnets.

2. A spring return device according to claim 1, characterised in that: The side of the upper guide rail slider away from the upper mounting portion is provided with an upper fixed slider, the side of the lower guide rail slider away from the lower mounting portion is provided with a lower fixed slider, an upper guide column is arranged between the upper fixed slider and the upper guide rail slider, a lower guide column is arranged between the lower fixed slider and the lower guide rail slider, the top surface of the upper fixed slider and the bottom surface of the lower fixed slider are provided with connecting screw holes, and the upper shell and the lower shell are connected with the lower fixed slider and the upper fixed slider through fixed bolts matched with the connecting screw holes.

3. A spring return device according to claim 1, wherein: The two ends of the mounting hole are provided with internal threads, the end of the return spring close to the internal thread is provided with a connecting block, the outer cylindrical surface of the connecting block is provided with external threads matched with the internal threads, and the side of the connecting block away from the return spring is provided with a twisting groove.

4. A spring return device according to claim 1, wherein: The two sides of the control groove are provided with centering grooves extending through the inner side of the mounting hole, the centering grooves are filled with limit columns, the side of the return spring close to the limit column is provided with a spring sleeve, the positions of the upper shell and the lower shell close to the mounting hole are provided with adjusting holes, and the adjusting holes are concentric with the mounting hole.

5. A spring return device according to claim 1, wherein: The positions of the first accommodating groove and the second accommodating groove close to the control rod are provided with connecting grooves matched with the control rod, and the connecting grooves are connected with the control rod.

6. A spring return device according to claim 1, wherein: The two sides of the second accommodating groove are provided with connecting holes extending through the bottom surface of the lower shell, and the connecting holes are provided with connecting bolts.