TWM614500U - Inner and outer tube telescopic buffer mechanism - Google Patents

Abstract

A telescopic buffer mechanism for inner and outer tubes, comprising: a hollow column, a fixing seat, an inner rod, an elastic member, an abutting member, and an anti-slip member. The fixing seat is fixedly connected with the inner wall of the hollow column, and the inner rod is arranged at The hollow column slidably penetrates the fixing seat, one end of the elastic member is connected to the inner rod, the other end of the elastic member is connected to the fixing seat to limit the movement stroke of the inner rod, and the abutting member is arranged on one side of the fixing seat, The width of the abutment member is tapered along the height direction of the hollow column, the anti-slip member is connected to the inner rod and the anti-slip member is located between the abutment member and the inner wall of the hollow column. The telescopic buffer mechanism of the inner and outer tubes of this creation improves many problems of the traditional pneumatic rods and hydraulic rods.

Description

Inner and outer tube telescopic buffer mechanism

This creation is about a lifting buffer mechanism, and more particularly about an inner and outer tube telescoping buffer mechanism that replaces air and oil pressure rods.

Air pressure rods, hydraulic rods and other lifting buffer devices are widely used in equipment that requires lifting buffers, such as medical equipment, industrial equipment, office building transoms, various furniture, and so on. The air pressure rod and the oil pressure rod are filled with fluid in the telescopic inner tube and the outer tube as a buffer damping. Pneumatic rods and hydraulic rods have the following shortcomings: when the brake is released, the inner tube may suddenly bounce; or when retracting, the user needs to spend a lot of pressure to return the inner tube, which makes it difficult to use; Or after using for a period of time, air or oil leakage makes it impossible to achieve the required length of braking anti-slip effect when lifting and stretching. Therefore, the braking anti-slip effect becomes worse as time goes on. In addition, the air pressure rod and the oil pressure rod need to be reliably sealed to prevent the internal fluid from leaking, and the manufacturing cost is relatively expensive.

Therefore, in order to solve the various problems of the conventional lifting buffer mechanism, this creation proposes an inner and outer tube telescopic buffer mechanism that replaces air and oil pressure rods.

In order to achieve the above and other purposes, this creation proposes an inner and outer tube telescopic buffer mechanism, which includes: a hollow column; a fixing seat fixedly connected to the inner wall of the hollow column; an inner rod arranged in the hollow column and Slidably pass through the fixing seat; an elastic member, one end of the elastic member is connected to the inner rod, and the other end of the elastic member is connected to the fixing seat to limit the movement stroke of the inner rod; an abutting member, Disposed on one side of the fixing seat, the width of the abutting member is tapered along the height direction of the hollow column; and a non-slip member connected to the inner rod and the non-slip member is located between the abutting member and the hollow column Between the inner walls.

In an embodiment of the present invention, the tapered surface of the abutting member is an inclined flat surface.

In an embodiment of the present invention, the anti-slip member includes a roller seat and at least one roller, the roller seat is fixedly connected to the inner rod, the rotating shaft of the roller is rotatably connected to the roller seat, and the rolling surface of the roller is opposite to It should abut the member and the inner wall of the hollow column.

In an embodiment of the present invention, the rolling surface of the roller has knurling.

In an embodiment of the present invention, the abutting member has two inclined flat surfaces, the anti-slip member includes two rollers, and the rolling surfaces of the two rollers respectively correspond to the two inclined flat surfaces.

In an embodiment of the present invention, the number of the abutting members is two, and the two ends of the roller each have a rolling surface to correspond to the two abutting members.

In an embodiment of the present invention, the anti-slip member is an inclined block with an inclined surface.

In an embodiment of the present invention, the tapered surface of the abutting member is a curved surface.

In an embodiment of the present invention, the anti-slip member includes a roller seat and at least one roller, the roller seat is fixedly connected to the inner rod, the rotating shaft of the roller is rotatably connected to the roller seat, and the rolling surface of the roller is opposite to It should abut the member and the inner wall of the hollow column.

In an embodiment of the present invention, the anti-slip member is an inclined block with an inclined surface.

In this way, the inner and outer tube telescopic buffer mechanism of this creation replaces the traditional air and oil pressure rods, and uses the elastic force of the elastic member and the friction between the components to achieve a buffer and damping effect, which is not only durable, stable, and not afraid of air leakage and oil leakage. , The user's operating feel is better, and the manufacturing cost can also be effectively reduced.

In order to fully understand the creation, the following specific examples are used to illustrate the creation in detail with the accompanying drawings. Those skilled in the art can understand the purpose, features and effects of this creation from the content disclosed in this specification. It should be noted that this creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of this creation. The following implementations will further describe the related technical content of this creation in detail, but the disclosed content is not intended to limit the scope of patent application for this creation. The description is as follows:

As shown in Figures 1 and 2, the inner and outer tube telescopic buffer mechanism 100 of this creative embodiment includes: a hollow column 1, a fixing seat 2, an inner rod 3, an elastic member 4, an abutting member 5, and A non-slip member 6.

The hollow column is one-way columnar and has a height direction L. In this embodiment, the hollow column 1 is a square column and has a cross section of the same size. However, the present creation is not limited to this. In other embodiments, the hollow column 1 may be a cylinder, a corner column of other shapes, or even a cone or pyramid with a gradually changing cross-sectional size.

The fixing base 2 is fixedly connected with the inner wall 11 of the hollow column 1. The fixing base 2 can be integrally formed with the hollow column 1, or the fixing base 2 can be fixed to the hollow column 1 by means of locking, and the present invention is not limited to this.

The inner rod 3 is arranged in the hollow column 1 and can slidably pass through the fixing seat 2. The cross section of the inner rod 3 is not limited to a circle, an ellipse, or a polygon.

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 fixing seat 2 to limit the movement stroke 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 shown in FIG. 3, when the elastic member 4 releases the elastic potential energy, the elastic member 4 pushes the inner rod 3 to reset . In this embodiment, the elastic member 4 is a coil spring, but the invention is not limited to this.

The abutting member 5 is arranged on one side of the fixing seat 2, and the width of the abutting member 5 is tapered along the height direction L of the hollow column 1. In other words, the distance between the abutting member 5 and the inner wall 11 of the hollow column 1 gradually changes.

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

When the elastic member 4 is in a non-compressed 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 the friction force between the anti-slip member 6 and the inner wall 11 makes the inner rod 3 fall smoothly, The other side of the anti-slip member 6 is out of contact with the abutting member 5.

As shown in Figure 3, when the elastic member 4 releases the 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, and the other side gradually touches the resisting force. The connecting member 5 uses the frictional force between the anti-slip member 6 and the inner wall 11, and the anti-slip member 6 and the abutting member 5 to suppress the rising speed of the inner rod 3 to achieve the effect of braking and anti-slip.

To sum up, the inner and outer tube telescopic buffer mechanism 100 of this creation replaces the traditional pneumatic and hydraulic rods, and uses the elastic force of the elastic member 4 and the friction between the components to achieve a buffering and damping effect, which is not only durable, and not afraid of air leakage. Oil leakage, the user's operating feel is better, and the manufacturing cost can also be reduced.

Further, in this embodiment, as shown in FIGS. 2 and 4, the tapered surface of the contact 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, the rotating shaft 621 of the roller 62 is rotatably connected to the roller seat 61, and the rolling surface 622 of the roller 62 corresponds to the contact member 5 and The inner wall 11 of the hollow column 1. With the rolling characteristics of the roller 62, the inner rod 3 is moved more smoothly, and the rolling of the roller 62 can also continuously generate friction.

Further, as shown in FIG. 2, the rolling surface 622 of the roller 62 has knurling 6221. Knurled 6221 can be used to enhance the friction generated by contact.

Further, as shown in FIGS. 2 and 4, the abutment member 5 has a double symmetric structure, which has two inclined flat surfaces 51, and the anti-slip member 6 includes two rollers 62. The rolling surfaces 622 of the two rollers 62 respectively correspond to Two inclined straight faces 51. Thereby, not only the structure of the inner and outer tube telescoping buffer mechanism 100 is more balanced, but the two rollers 62 can also cancel the lateral force of each other when rolling.

Furthermore, as shown in FIG. 4, the number of the abutting members 5 is two, and the roller seat 61 is disposed between the two abutting members 5. Each of the two ends of the roller 62 has a rolling surface 622 corresponding to the two abutting members 5. Thereby, the structure of the inner and outer tube telescoping and buffering mechanism 100 in the other direction is more balanced, and the friction area of the roller 62 is increased, friction is enhanced, and the buffering and damping effect is better.

Furthermore, as shown in FIG. 5, in the second embodiment of the present creation, the difference between the inner and outer tube telescopic buffer mechanism 100a and the inner and outer tube telescopic buffer mechanism 100 of 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 abutment between the slope of the anti-slip member 8 and the abutting member 5 and the friction between the anti-slip member 8 and the inner wall 11.

Further, as shown in FIG. 6, in the third embodiment of the present creation, the difference between the inner and outer tube telescopic buffer mechanism 100b and the inner and outer tube telescopic buffer mechanism 100 of the first embodiment lies in the tapered surface of the contact member 7 It 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 by the contact member 7 and the inner wall 11 of the hollow column 1.

Further, as shown in FIG. 7, in the fourth embodiment of the present creation, the difference between the inner and outer tube telescopic buffer mechanism 100c and the inner and outer tube telescopic buffer mechanism 100b of 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 abutment between the slope of the anti-slip member 8 and the abutting member 7 and the friction between the anti-slip member 8 and the inner wall 11.

This creation has been disclosed above with an embodiment, but those familiar with this technology should understand that the embodiment is only used to describe the creation, and should not be interpreted as limiting the scope of the creation. It should be noted that all changes and replacements equivalent to this embodiment should be included in the scope of this creation. Therefore, the scope of protection of this creation shall be subject to the scope of the patent application.

100: Internal and external tube telescopic buffer mechanism 100a: telescopic buffer mechanism for inner and outer tubes 100b: telescopic buffer mechanism for inner and outer pipes 100c: telescopic buffer mechanism for inner and outer tubes 1: Hollow column 11: inner wall 2: fixed seat 3: inner rod 4: Elastic member 5: Abutment member 51: Inclined flat face 6: Anti-slip member 61: Roller seat 62: Roller 621: Hinge 622: rolling surface 6221: Knurling 7: Abutment member 71: curved surface 8: Anti-slip member L: height direction

Fig. 1 is a schematic diagram of the three-dimensional appearance of the inner and outer tube telescoping buffer mechanism according to the first embodiment of the invention. Figure 2 is a schematic cross-sectional view of the inner and outer tube telescopic buffer mechanism according to the first embodiment of the invention. Fig. 3 is a schematic view of the reset of the inner and outer tube telescopic buffer mechanism according to the first embodiment of the invention. Fig. 4 is another perspective schematic diagram of the telescopic buffer mechanism for the inner and outer tubes according to the first embodiment of the present creation. Figure 5 is a schematic cross-sectional view of the inner and outer tube telescoping buffer mechanism according to the second embodiment of the invention. Fig. 6 is a schematic cross-sectional view of the inner and outer tube telescopic buffer mechanism according to the third embodiment of the invention. Fig. 7 is a schematic cross-sectional view of the inner and outer tube telescoping buffer mechanism according to the fourth embodiment of the invention.

1: Hollow column

11: inner wall

2: fixed seat

3: inner rod

4: Elastic member

5: Abutment member

51: Inclined flat face

6: Anti-slip member

61: Roller seat

62: Roller

6221: Knurling

L: height direction

Claims (10)

A telescopic buffer mechanism for inner and outer tubes, which comprises: A hollow column; A fixed seat, fixedly connected with the inner wall of the hollow column; An inner rod arranged in the hollow column and slidably passing through the fixing seat; An elastic member, one end of the elastic member is connected to the inner rod, and the other end of the elastic member is connected to the fixing seat to limit the movement stroke of the inner rod; An abutting member arranged on one side of the fixing seat, the width of the abutting member is tapered along the height direction of the hollow column; and An anti-slip member is connected to the inner rod and the anti-slip member is located between the abutting member and the inner wall of the hollow column. According to claim 1, the inner and outer tube telescopic buffer mechanism, wherein the surface of the abutting member whose width is tapered is an inclined flat surface. The inner and outer tube telescopic buffer mechanism according to claim 2, wherein the anti-slip member includes a roller seat and at least one roller, the roller seat is fixedly connected to the inner rod, the rotating shaft of the roller is rotatably connected to the roller seat, the The rolling surface of the roller corresponds to the abutting member and the inner wall of the hollow column. According to claim 3, the inner and outer tube telescopic buffer mechanism, wherein the rolling surface of the roller has knurling. According to claim 3, the inner and outer tube telescopic buffer mechanism, wherein the abutting member has two inclined flat surfaces, the anti-slip member includes two rollers, and the rolling surfaces of the two rollers correspond to the two inclined flat surfaces, respectively. According to claim 3, the telescopic buffer mechanism for the inner and outer tubes, wherein the number of the abutting members is two, and the two ends of the roller each have a rolling surface to correspond to the two abutting members. According to claim 2, the inner and outer tube telescopic buffer mechanism, wherein the anti-slip member is an inclined block with an inclined surface. According to claim 1, the telescopic buffer mechanism for the inner and outer tubes, wherein the surface of the abutting member whose width is tapered is a curved surface. The inner and outer tube telescopic buffer mechanism according to claim 8, wherein the anti-slip member includes a roller seat and at least one roller, the roller seat is fixedly connected to the inner rod, the rotating shaft of the roller is rotatably connected to the roller seat, the The rolling surface of the roller corresponds to the abutting member and the inner wall of the hollow column. According to claim 8, the inner and outer tube telescopic buffer mechanism, wherein the anti-slip member is an inclined block with an inclined surface.

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