Inner and outer tube telescopic buffer mechanism

Abstract

The application discloses an inner and outer tube telescopic buffering mechanism, which comprises a hollow column, a fixing base, an inner rod, an elastic component, an abutting component and a slip stopping component. The fixing base is fixedly connected with the inner wall of the hollow column. The inner rod is arranged in the hollow column and can slide through the fixing base. One end of the elastic component is connected with the inner rod. The other end of the elastic component is connected with the fixing base to limit the moving stroke of the inner rod. The abutting component is arranged on one side of the fixing base. The width of the abutting component is tapered along the height direction of the hollow column. The slip stopping component is connected with the inner rod and is located between the abutting component and the inner wall of the hollow column. The inner and outer tube telescopic buffering mechanism improves the problems of the existing air pressure rod and oil pressure rod.

Description

Technical Field

[0001] This invention relates to a lifting and buffering mechanism, and more particularly to an inner and outer tube telescopic buffering mechanism that replaces pneumatic or hydraulic pressure rods. Background Technology

[0002] Pneumatic and hydraulic rods, among other lifting and damping devices, are widely used in equipment requiring lifting and damping, such as medical equipment, industrial machinery, office building ventilation windows, and various furniture. These rods use fluid filled in overlapping inner and outer tubes as damping. However, pneumatic and hydraulic rods have the following disadvantages: when releasing the brake, the inner tube may suddenly spring back; or when retracting, the user needs to exert considerable force to push the inner tube back, making it difficult to use; or after a period of use, air or oil leaks may prevent the braking and damping effect from reaching the required length during lifting and extension, thus decreasing the braking and damping effect over time. Furthermore, pneumatic and hydraulic rods require reliable sealing to prevent fluid leakage, making them expensive to manufacture. Summary of the Invention

[0003] The purpose of this invention is to solve various problems of existing lifting and buffering mechanisms and to propose an inner and outer tube telescopic buffering mechanism that can replace pneumatic and hydraulic pressure rods.

[0004] To achieve the above and other objectives, the present invention provides an inner and outer tube telescopic buffer mechanism, comprising: a hollow column; a fixed seat fixedly connected to the inner wall of the hollow column; an inner rod disposed within the hollow column and slidably passing through the fixed seat; an elastic member, one end of which is connected to the inner rod and the other end of which is connected to the fixed seat to limit the travel of the inner rod; an abutment member disposed on one side of the fixed seat, the width of which gradually decreases along the height direction of the hollow column; and an anti-slip member connected to the inner rod and located between the abutment member and the inner wall of the hollow column.

[0005] Optionally, the tapering surface of the abutment member is an inclined flat surface.

[0006] Optionally, the anti-slip component includes a roller seat and at least one roller. The roller seat is fixedly connected to the inner rod, and the roller shaft is rotatably connected to the roller seat. The rolling surface of the roller corresponds to the abutment component and the inner wall of the hollow column.

[0007] Optionally, the rolling surface of the roller has knurling.

[0008] Optionally, the abutment member has two inclined flat surfaces, and the anti-slip member includes two rollers, the rolling surfaces of which respectively correspond to the two inclined flat surfaces.

[0009] Optionally, the number of abutting members is two, and each end of the roller has a rolling surface to correspond to the two abutting members.

[0010] Optionally, the anti-slip component is a sloping block with an inclined surface.

[0011] Optionally, the tapering surface of the abutment member is a curved surface.

[0012] Optionally, the anti-slip component includes a roller seat and at least one roller. The roller seat is fixedly connected to the inner rod, and the roller shaft is rotatably connected to the roller seat. The rolling surface of the roller corresponds to the abutment component and the inner wall of the hollow column.

[0013] Optionally, the anti-slip component is a sloping block with an inclined surface.

[0014] Therefore, the inner and outer tube telescopic buffer mechanism of the present invention replaces the existing air and oil pressure rods, and achieves the buffering and damping effect by utilizing the elastic force of the elastic component and the friction between the components. It is not only durable, stable, and resistant to air and oil leaks, but also provides a better user experience and effectively reduces manufacturing costs.

[0015] To further understand the features and technical content of the present invention, please refer to the following detailed description and drawings of the invention. However, these descriptions and drawings are only for illustrating the present invention and are not intended to limit the scope of the invention in any way. Attached Figure Description

[0016] Figure 1 This is a three-dimensional external view of the inner and outer tube telescopic buffer mechanism according to the first embodiment of the present invention;

[0017] Figure 2 This is a cross-sectional schematic diagram of the inner and outer tube telescopic buffer mechanism according to the first embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the resetting of the inner and outer tube telescopic buffer mechanism according to the first embodiment of the present invention;

[0019] Figure 4 This is a three-dimensional schematic diagram of the inner and outer tube telescopic buffer mechanism of the first embodiment of the present invention from another perspective;

[0020] Figure 5 This is a cross-sectional schematic diagram of the inner and outer tube telescopic buffer mechanism according to the second embodiment of the present invention;

[0021] Figure 6 This is a cross-sectional schematic diagram of the inner and outer tube telescopic buffer mechanism according to the third embodiment of the present invention;

[0022] Figure 7 This is a cross-sectional schematic diagram of the inner and outer tube telescopic buffer mechanism according to the fourth embodiment of the present invention.

[0023] Figure label:

[0024] 100 The first embodiment of the inner and outer tube telescopic buffer mechanism

[0025] 100a Second Embodiment Inner and Outer Tube Telescopic Buffer Mechanism

[0026] 100b Third Embodiment Inner and Outer Tube Telescopic Buffer Mechanism

[0027] 100c Fourth Embodiment Inner and Outer Tube Telescopic Buffer Mechanism

[0028] 1 Hollow Column

[0029] 11 Inner Wall

[0030] 2. Fixture

[0031] 3 Inner rod

[0032] 4. Elastic Components

[0033] 5. Abutment components

[0034] 51. Inclined flat surface

[0035] 6 Anti-slip components

[0036] 61 Roller base

[0037] 62 rollers

[0038] 621 Shaft

[0039] 622 Rolling Surface

[0040] 6221 Knurling

[0041] 7. Abutment components

[0042] 71 Curved Surface

[0043] 8 Anti-slip components

[0044] L (height direction) Detailed Implementation

[0045] To fully understand the present invention, the following specific embodiments, in conjunction with the accompanying drawings, will provide a detailed description. Those skilled in the art can understand the purpose, features, and effects of the present invention from the content disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of the present invention. Furthermore, the accompanying drawings are for simple illustrative purposes only and are not depictions based on actual dimensions. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the claims of the present invention. The following explanation is provided:

[0046] like Figure 1 and Figure 2 As shown, the inner and outer tube telescopic buffer mechanism 100 of the first embodiment of the present invention includes: a hollow column 1, a fixed base 2, an inner rod 3, an elastic member 4, an abutment member 5, and an anti-slip member 6.

[0047] The hollow column 1 is columnar with a height direction L. In this embodiment, the hollow column 1 is a square column with a uniform cross-section. However, the invention is not limited to this. In other embodiments, the hollow column 1 can be a cylinder, a corner column of other shapes, or even a cone or pyramid with a gradually changing cross-sectional size.

[0048] The fixing seat 2 is fixedly connected to the inner wall 11 of the hollow column 1. The fixing seat 2 may be integrally formed with the hollow column 1, or the fixing seat 2 may be fixed to the hollow column 1 by locking, and the present invention is not limited thereto.

[0049] The inner rod 3 is disposed within the hollow column 1 and can slide through the fixed base 2. The cross-section of the inner rod 3 is not limited to a circle, ellipse or polygon.

[0050] One end of the elastic member 4 is connected to the inner rod 3, and the other end of the elastic member 4 is connected to the fixed seat 2 to limit the travel of the inner rod 3. In other words, when the inner rod 3 moves downward along the height direction L of the hollow column 1, the elastic member 4 is compressed; as... Figure 3 As shown, when the elastic member 4 releases its elastic potential energy, it pushes the inner rod 3 to return to its original position. In this embodiment, the elastic member 4 is a helical spring; however, the present invention is not limited thereto.

[0051] The abutment member 5 is disposed on one side of the fixing base 2, and the width of the abutment member 5 gradually decreases along the height direction L of the hollow column 1. In other words, the distance between the abutment member 5 and the inner wall 11 of the hollow column 1 changes gradually.

[0052] The anti-slip component 6 is connected to the inner rod 3 and is located between the abutment component 5 and the inner wall 11 of the hollow column 1.

[0053] When the elastic member 4 is in an uncompressed state, the two sides of the anti-slip member 6 abut against the inner wall 11 and the abutting member 5, respectively. When the inner rod 3 moves downward along the height direction L of the hollow column 1, the anti-slip member 6 keeps one side in contact with the inner wall 11, and uses the friction between the anti-slip member 6 and the inner wall 11 to make the inner rod 3 descend smoothly, while the other side of the anti-slip member 6 disengages from the abutting member 5.

[0054] like Figure 3 As shown, when the elastic member 4 releases its elastic potential energy, the elastic member 4 pushes the inner rod 3 to reset. One side of the anti-slip member 6 continues to contact the inner wall 11 to generate friction, while the other side gradually touches the abutting member 5. The friction between the anti-slip member 6 and the inner wall 11, and between the anti-slip member 6 and the abutting member 5, is used to suppress the upward speed of the inner rod 3, thereby achieving the effect of braking and anti-slip.

[0055] In summary, the inner and outer tube telescopic buffer mechanism 100 of the present invention replaces the traditional air and oil pressure rods, and achieves the buffering and damping effect by utilizing the elastic force of the elastic member 4 and the friction between the components. It is not only durable and not afraid of air or oil leakage, but also provides a better user experience and reduces manufacturing costs.

[0056] Furthermore, in this embodiment, as Figure 2 and Figure 4 As shown, the tapering surface of the abutment member 5 is an inclined flat surface 51. The anti-slip member 6 includes a roller seat 61 and at least one roller 62. The roller seat 61 is fixedly connected to the inner rod 3, and the roller 62's pivot 621 is rotatably connected to the roller seat 61. The rolling surface 622 of the roller 62 corresponds to the abutment member 5 and the inner wall 11 of the hollow column 1. Through the rolling characteristics of the roller 62, the inner rod 3 moves more smoothly, and the rolling of the roller 62 can also continuously generate friction.

[0057] Furthermore, such as Figure 2 As shown, the rolling surface 622 of the roller 62 has knurling 6221. Knurling 6221 can be used to enhance the friction generated by contact.

[0058] Furthermore, such as Figure 2 and Figure 4 As shown, the abutment member 5 has a double-symmetrical structure with two inclined flat surfaces 51, and the anti-slip member 6 includes two rollers 62, with the rolling surfaces 622 of the two rollers 62 corresponding to the two inclined flat surfaces 51 respectively. In this way, not only is the structure of the inner and outer tube telescopic buffer mechanism 100 more balanced, but the two rollers 62 can also cancel each other out lateral forces when rolling.

[0059] Furthermore, such as Figure 4As shown, there are two abutment members 5, and the roller seat 61 is disposed between the two abutment members 5. Each end of the roller 62 has a rolling surface 622 corresponding to the two abutment members 5. In this way, the structure of the inner and outer tube telescopic buffer mechanism 100 is more balanced in another direction, and the friction area of ​​the roller 62 is increased, the friction force is enhanced, and the buffering damping effect is better.

[0060] Furthermore, such as Figure 5 As shown, in the second embodiment of the present invention, the difference between the inner and outer tube telescopic buffer mechanism 100a and the inner and outer tube telescopic buffer mechanism 100 in the first embodiment is that the anti-slip member 8 is an inclined block with a slope. The anti-slip effect is achieved by the mutual abutment between the inclined surface of the anti-slip member 8 and the abutment member 5, and the friction between the anti-slip member 8 and the inner wall 11.

[0061] Furthermore, such as Figure 6 As shown, in the third embodiment of the present invention, the difference between the inner and outer tube telescopic buffer mechanism 100b and the inner and outer tube telescopic buffer mechanism 100 in the first embodiment is that the surface of the abutting member 7 with a gradually narrowing width is a curved surface 71. However, the distance between the abutting member 7 and the inner wall 11 of the hollow column 1 still changes gradually. The roller 62 generates friction through the abutting member 7 and the inner wall 11 of the hollow column 1.

[0062] Furthermore, such as Figure 7 As shown, in the fourth embodiment of the present invention, the difference between the inner and outer tube telescopic buffer mechanism 100c and the inner and outer tube telescopic buffer mechanism 100b in the third embodiment is that the anti-slip member 8 is an inclined block with a slope. The anti-slip effect is achieved by the mutual abutment between the inclined surface of the anti-slip member 8 and the abutment member 7, and the friction between the anti-slip member 8 and the inner wall 11.

[0063] The present invention has been disclosed above with reference to preferred embodiments. However, those skilled in the art should understand that the embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. It should be noted that all variations and substitutions equivalent to the described embodiments should be included within the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A telescopic buffer mechanism for inner and outer tubes, characterized in that, The inner and outer tube telescopic buffer mechanism includes: Hollow column; A fixing seat is fixedly connected to the inner wall of the hollow column; An inner rod is disposed within the hollow column and can slide through the fixed base; An elastic member, one end of which is connected to the inner rod, and the other end of which is connected to the fixed seat to limit the travel of the inner rod; A contact member is disposed on one side of the fixing base, the width of the contact member gradually decreasing in the opposite direction to the height of the hollow column; and An anti-slip component is connected to the inner rod and is located between the abutment component and the inner wall of the hollow column. When the elastic member is compressed, the anti-slip member maintains contact with the inner wall on one side, while the other side of the anti-slip member disengages from the abutment member to provide a gradually decreasing frictional force. When the elastic member releases its elastic potential energy and pushes the inner rod to reset, one side of the anti-slip member continues to contact the inner wall to generate friction, while the other side of the anti-slip member gradually touches the abutment member and provides increasing friction.

2. The inner and outer tube telescopic buffer mechanism according to claim 1, characterized in that, The surface of the abutting member, which gradually narrows in width, is an inclined flat surface.

3. The inner and outer tube telescopic buffer mechanism according to claim 2, characterized in that, The anti-slip component includes a roller seat and at least one roller. The roller seat is fixedly connected to the inner rod, and the roller shaft is rotatably connected to the roller seat. The rolling surface of the roller corresponds to the abutment component and the inner wall of the hollow column.

4. The inner and outer tube telescopic buffer mechanism according to claim 3, characterized in that, The rolling surface of the roller has knurling.

5. The inner and outer tube telescopic buffer mechanism according to claim 3, characterized in that, The abutting member has two inclined flat surfaces, and the anti-slip member includes two rollers, the rolling surfaces of which respectively correspond to the two inclined flat surfaces.

6. The inner and outer tube telescopic buffer mechanism according to claim 3, characterized in that, The number of abutting members is two, and each end of the roller has a rolling surface to correspond to the two abutting members.

7. The inner and outer tube telescopic buffer mechanism according to claim 2, characterized in that, The anti-slip component is an inclined block with a slope.

8. The inner and outer tube telescopic buffer mechanism according to claim 1, characterized in that, The surface of the abutting member, which gradually narrows in width, is curved.

9. The inner and outer tube telescopic buffer mechanism according to claim 8, characterized in that, The anti-slip component includes a roller seat and at least one roller. The roller seat is fixedly connected to the inner rod, and the roller shaft is rotatably connected to the roller seat. The rolling surface of the roller corresponds to the abutment component and the inner wall of the hollow column.

10. The inner and outer tube telescopic buffer mechanism according to claim 8, characterized in that, The anti-slip component is an inclined block with a slope.

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