TWM457054U - Improved structure of damper bar - Google Patents

Description

Buffer rod structure improvement

This creation is a buffer rod structure improvement, especially to provide an effective pressure relief mechanism throughout the process, which can avoid the lack of smooth movement of the push rod, thereby improving the reliability of the product and improving the convenience of use.

Pressing, the buffering rod is a device arranged between two relatively moving objects for buffering the relative movement speed thereof, so as to reduce the collision force between the objects or reduce the noise, for example, for the door that can be automatically returned. On the body or drawer slide, please refer to the first figure as a partial enlarged view of a conventional buffer rod, which is mainly disposed in an outer tube 11 axially with a shaft 12 and at one end of the shaft 12 The connected connecting member 13 is provided with a piston ring 14 which is provided with a loop portion 141 and a skirt portion 142, whereby the piston is displaced when the shaft 12 is displaced in the direction of the piston ring 14. The loop portion 141 and the skirt portion 142 of the ring 14 can be evenly spread by the ejector of the connecting member 13, so that the loop portion 141 and the skirt portion 142 and the inner wall of the outer tube 11 form a good gas. The dense state and friction, so that the buffer rod can achieve the purpose of providing a buffering effect.

The conventional buffer rod can achieve the purpose of providing a cushioning effect, but when the shaft 12 is displaced toward the piston ring 14, the air inside the outer tube 11 is also compressed, so that the shaft When the rod 12 pushes the piston ring 14 close to the bottom of the outer tube 11, the thrust of the shaft 12 is often smaller than the air pressure inside the outer tube 11, so that the shaft 12 cannot be smoothly advanced, and the loop portion 141 of the piston ring 14 must be waited. When the skirt portion 142 is restored to the original shape and the air pressure in the outer tube 11 is less than the thrust of the shaft 12, the advancement can be continued, resulting in the slider rod 12 of the conventional buffer rod not moving smoothly, thereby causing the product reliability to be lowered and the user's Troubled, so there is a need for improvement.

Therefore, how to eliminate the above-mentioned defects is the technical difficulty point that the creators of this case want to solve.

In view of the existing buffer rod, since the air pressure in the outer tube is not easily discharged during the buffer stroke, the shaft does not move smoothly, so the purpose of the present invention is to provide a buffer rod structure improvement, by which the push rod and the piston member are respectively provided with guides. The flow hole and the through hole, and the through hole and the guide hole are connected and penetrated, and an effective pressure relief mechanism can be provided throughout the process, so that the end of the buffer stroke can be avoided because the air pressure is greater than the thrust of the push rod, and the push rod movement is not smooth. The lack of this, in order to achieve the effect of improving product reliability and ease of use.

In order to achieve the above object, the present invention provides a buffer rod structure improvement comprising: an outer tube having a hollow portion, the outer tube having a closed bottom and an open top at each end a push rod, the push rod is slidably disposed in the hollow portion of the outer tube, and the two ends of the push rod are respectively provided with a joint portion and a driven portion, and the push rod further has a joint portion extending through the joint portion a guiding hole with the driven portion; a piston member having a combined portion at one end of the piston member that is engaged with the joint portion of the push rod, and the piston member is in contact with the inner wall of the hollow portion of the outer tube Further, the piston member is further provided with a through hole, and the through hole penetrates through the two ends of the piston member; the push rod and the piston member are respectively provided with a flow guiding hole and a through hole, and the through hole and the guiding hole The connection is continuous, and an effective pressure relief mechanism can be provided throughout the process, so that the end of the buffer stroke can be avoided because the air pressure is greater than the thrust of the push rod, resulting in a lack of smooth movement of the push rod, thereby enabling the creation to improve product reliability and Improve the convenience of use.

In order to make it easier for your examiner to understand the other features and advantages of this creation and the effects achieved by it, this author will be explained in detail with the following drawings: Please refer to the second and third figures. The present invention provides a buffer rod structure improvement, comprising: an outer tube 3, the outer tube 3 is provided with a hollow portion 33, and the outer tube 3 is respectively provided with a closed bottom portion 31 and an open top portion. 32. A push rod 4 is slidably disposed in the hollow portion 33 of the outer tube 3. The two ends of the push rod 4 are respectively provided with a joint portion 41 and a driven portion 42. The pusher 4 and the driven portion 42 are respectively connected to the push rod 4, and in the embodiment, the pusher 4 and the joint portion 41 are integrally formed with the driven portion 42, wherein the joint portion 41 is passed through the joint portion 41. In the hollow portion 33 of the outer tube 3, the driven portion 42 protrudes beyond the top portion 32 of the outer tube 3, and as shown in the third figure, the joint portion 41 can be a tapered bump and the driven portion 42 can be combined with an external movable object (such as a slide rail or a door body) so that the movable object can drive the push rod 4 to shift The buffering effect, the combination of the putter 4 and the movable object in the present invention is well known to those skilled in the art, and therefore will not be further described herein. Further, the pusher 4 further A flow guiding hole 43 is formed through the connecting portion 41 and the driven portion 42. Further, as shown in FIG. 2A, the guiding hole 43 can be provided with an adjusting portion 431. The orifice 43 is continuous, and the diameter of the adjusting portion 431 is smaller than the diameter of the orifice 43. Thus, by appropriately setting the pore size of the orifice 43 and the adjusting portion 431, the pressure relief can be adjusted. The effect of the rate of exhaust or the amount of exhaust gas, and the buffer damping of the buffer rod can be adjusted according to the user's needs; a piston member 5 having a tail portion 53 and a contact portion 55 at each end of the piston member 5, the live The tail portion 53 of the plug member 5 is provided with a joint portion 51 corresponding to the joint portion 41 of the push rod 4, and the joint portion 51 can be a through hole, whereby the piston member 5 is coupled to the joint portion 51. The pusher 4 can be engaged with the joint portion 41 of the push rod 4, and an abdomen 54 can be disposed between the tail portion 53 and the contact portion 55. The tail portion 53 and the abdomen 54 are connected to the contact portion 55, in this embodiment. The tail portion 53 and the abdomen 54 are integrally formed with the contact portion 55. The outer diameter of the contact portion 55 may be larger than the outer diameter of the tail portion 53 and the abdomen 54, respectively, and the outer diameter of the contact portion 55 is slightly larger than the outer tube. 3, the inner diameter of the hollow portion 33, whereby the contact portion 55 of the piston member 5 can be in contact with the inner wall of the hollow portion 33 of the outer tube 3, and the piston member 5 can be a rubber sleeve, and the piston member 5 can be a rubber sleeve. The through hole 52 may be further disposed in the piston member 5, and the through hole 52 penetrates through the joint portion 51, and the through hole 52 penetrates the tail portion 53 of the piston member 5 and the contact portion 55, thereby damming the piston The through hole 52 of the member 5 can be connected with the guide hole 43 of the push rod 4; please refer to the second figure and the fourth figure, the contact portion 55 of the piston member 5 and the hollow portion 33 of the outer tube 3 The wall member is in contact with the top, and the piston member 5 is a rubber sleeve. The push rod 4 is provided with a flow guiding hole 43. The through hole 52 of the piston member 5 is connected with the guiding hole 43 of the push rod 4, and the When the push rod 4 is displaced toward the bottom 3 of the outer tube 32, the contact portion 55 of the piston member 5 will be slightly expanded and expanded with the inner wall of the hollow portion 33 of the outer tube 3, and a good airtightness can be formed. The state and the air A1 in the hollow portion 33 are pressed, and the buffer damping effect is achieved, and at the same time, the piston member 5 has the abdomen 54 and the tail portion 53, and the contact can be made during the action of squeezing the air A1. The portion 55 provides a brake action such as a shock absorber, and the fluency of the piston member 5 can be improved. Further, the air A1 in the hollow portion 33 of the outer tube 3 can pass through the through hole 52 of the piston member 5 and The flow guiding hole 43 of the push rod 4 is appropriately discharged to achieve a pressure relief effect, thereby enabling the creation of the buffering effect; Referring to the second and fourth figures, the push rod 4 and the piston member 5 are respectively provided with a flow guiding hole 43 and a through hole 52, and the through hole 52 is connected with the guiding hole 43, and An effective pressure relief mechanism can be provided throughout the process, so that the end of the buffer stroke can be avoided because the air pressure is greater than the thrust of the push rod 4, resulting in the lack of smooth movement of the push rod 4, thereby enabling the creation to improve product reliability and facilitate use. In addition, the push rod 4 and the joint portion 41 are integrally formed, so that the creation only needs to be combined by the outer tube 3, the push rod 4 and the piston member 5 to achieve the buffer rod effect. The 俾 can greatly simplify the structural complexity, so that the creation can both simplify the structure and reduce the manufacturing cost; in addition, the creation can further set the guiding hole 43, the adjusting portion 431 or the through hole 52 by moderately changing. The size of the aperture can adjust the rate of the pressure relief exhaust or the amount of exhaust, and the buffer damping of the buffer rod can be adjusted according to the user's needs, so that the creation can improve the applicability of the product.

In order to make this creation more progressive and practical, a comparative analysis is used as follows:

Conventional technology:

1. During the buffer stroke, the air pressure inside the outer tube is not easy to discharge, resulting in the shaft not moving smoothly.

2. Product reliability and ease of use are poor.

The advantages of this creation:

1. An effective pressure relief mechanism can be provided throughout the buffer stroke to improve the smoothness of the putter movement.

2. Product reliability and ease of use.

11‧‧‧External management

12‧‧‧ shaft

13‧‧‧Connecting parts

14‧‧‧Piston ring

141‧‧‧Circle Department

142‧‧‧ skirt

3‧‧‧External management

31‧‧‧ bottom

32‧‧‧ top

33‧‧‧ Hollow

4‧‧‧Put

41‧‧‧Combination Department

42‧‧‧Being the Ministry

43‧‧‧Inlet

431‧‧‧Regulatory Department

5‧‧‧ piston parts

51‧‧‧Combined Department

52‧‧‧through hole

53‧‧‧ tail

54‧‧‧Abdomen

55‧‧‧Contacts

A1‧‧‧Air

The first figure is a partial schematic view of a conventional buffer rod.

The second picture is an exploded view of the creation.

The second A picture is a schematic diagram of part of the creation of its putter.

The third picture is a schematic diagram of the combination of the creation.

The fourth picture is a schematic diagram of the action of this creation.

3‧‧‧External management

4‧‧‧Put

42‧‧‧Being the Ministry

43‧‧‧Inlet

5‧‧‧ piston parts

Claims (9)

The utility model relates to a buffer rod structure improvement, which comprises: an outer tube, wherein the outer tube is provided with a hollow portion, and the outer tube has a closed bottom portion and an open top portion respectively; a push rod, the push rod system can be Slidingly disposed in the hollow portion of the outer tube, the two ends of the push rod are respectively provided with a joint portion and a driven portion, wherein the joint portion and the driven portion are respectively connected to the push rod, wherein the joint portion is The piston is disposed in the hollow portion of the outer tube, and the driven portion protrudes from the top of the outer tube. The push rod further defines a flow guiding hole extending through the joint portion and the driven portion; a piston member, the piston The two ends of the piece respectively have a tail portion and a contact portion, and the piston member has a joint portion corresponding to the joint portion of the push rod in the tail portion, so that the joint portion of the piston member can be combined with the push rod The portion is sleeved, and the outer diameter of the contact portion is slightly larger than the inner diameter of the hollow portion of the outer tube, whereby the contact portion of the piston member can be in contact with the inner wall of the inner portion of the outer tube, Further, the piston member is further provided with a through hole, and the through hole is opposite to the combined portion Pass, and the through hole through the contact portion of the tail portion of the piston member, whereby to enabling the through hole of the piston member which may be connected to the push rod guiding holes through which. The cushion rod structure according to claim 1, wherein the push rod and the joint portion are integrally formed with the driven portion. The buffer rod structure improvement according to claim 1, wherein the joint portion is a tapered bump. The buffer rod structure improvement according to the first aspect of the patent application, wherein the piston member is a rubber sleeve. The buffer rod structure improvement according to the first aspect of the patent application, wherein the joint portion is Through hole. The buffer rod structure improvement according to claim 1, wherein the flow guiding hole is provided with an adjusting portion, and the adjusting portion penetrates the guiding hole. The buffer rod structure improvement according to claim 6, wherein the adjustment portion has a smaller diameter than the diameter of the flow guiding hole. The cushion rod structure according to claim 1, wherein the piston member is provided with an abdomen between the tail portion and the contact portion, and the tail portion and the abdomen are connected to the contact portion. The cushion rod structure according to claim 8 is characterized in that the outer diameter of the contact portion is larger than the outer diameter of the tail portion and the abdomen, respectively.