CN211288578U - Buffering air rod - Google Patents

Abstract

The utility model relates to a buffering gas pole, including gas pole main part, the piston rod of this gas pole main part is the echelonment setting, including piston installation department, spring mounting portion and the screw thread portion that sets gradually spring mounting portion install and suit a spring after the buffer pad again, the one end top of this spring is in piston installation department on, the other end top is on the main gasket that is located gas pole main part one end, by main gasket spacing, install the nut after this screw thread portion passes main gasket and spring pad in proper order. The utility model has the advantages that: through setting up dual shock-absorbing function, the effectual buffering that has realized in the gas pole working process has improved the factor of safety of product.

Description

Buffering air rod

Technical Field

The utility model relates to a buffering gas pole.

Background

The gas rod is also called as a gas spring, and when the rod core is compressed, the compression is particularly the lowest in the existing gas rod, so that the chair can transfer poor experience to a user; in order to bring better experience and feel to a user, a large amount of sponges are added to the surface of a chair to bring good sitting feel to the user, and the manufacturing cost of the chair is increased.

Disclosure of Invention

For overcoming the defects of the prior art, the utility model provides a buffering gas pole, the technical scheme of the utility model is that:

the utility model provides a buffering gas pole, includes the gas pole main part, the piston rod of this gas pole main part is the echelonment setting, including piston installation department, spring mounting portion and the screw thread portion that sets gradually spring mounting portion install again behind the buffer pad suit spring, the one end top of this spring is in piston installation department on, the other end top is on the main gasket that is located gas pole main part one end, by the main gasket spacing, this screw thread portion installs the nut after passing main gasket and spring pad in proper order.

The spring gasket be circular setting, seted up oval hole at this spring gasket's middle part, this oval hole with screw thread portion adaptation, the whole oval setting in cross-section of this screw thread portion, the segmental arc of this screw thread portion with nut screw-thread fit, be provided with at least one auxiliary hole on the spring gasket that is close oval hole one side.

The joint of the piston installation part and the spring installation part is provided with a bearing gasket, and the spring is propped against the bearing gasket.

The number of the auxiliary holes is two.

The utility model has the advantages that: the spring is added, so that the whole process of the rod core compression or the lowest compression can bring good sitting feeling to a user and reduce the cost of the chair. Through setting up dual shock-absorbing function, the effectual buffering that has realized in the gas pole working process has improved the factor of safety of product.

Drawings

Fig. 1 is a schematic view of the main structure of the present invention.

Fig. 2 is a schematic view of the structure of the spring washer of fig. 1.

Fig. 3 is a schematic view of the piston rod of fig. 1.

Fig. 4 is a sectional view B-B of fig. 3.

Detailed Description

The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Referring to fig. 1 to 4, the utility model relates to a buffering gas pole, including gas pole main part 1, piston rod 2 of this gas pole main part 1 is the echelonment setting (the improvement point of this technical scheme lies in the improvement to the piston rod), including the piston installation department 21, spring installation department 22 and the screw thread portion 23 that set gradually spring installation department 22 install and suit a spring 4 again behind the buffer pad 5, the one end of this spring 4 pushes up piston installation department 21 on, the other end pushes up on the main gasket 6 that is located gas pole main part one end, by main gasket 6 spacing, install nut 8 after this screw thread portion 23 passes main gasket 6 and spring gasket 7 in proper order.

Spring shim 7 be circular setting, seted up oval hole 10 in the middle part of this spring shim 7, this oval hole 10 with screw portion 23 adaptation, the whole oval setting in cross-section of this screw portion 23, the segmental arc (as shown in figure 4) of this screw portion 23 with nut screw-thread fit, be provided with at least one auxiliary hole 9 on spring shim 7 that is close oval hole 10 one side, this auxiliary hole 9 adopts appurtenance to fix a position for when realizing the installation screw, place the piston rod and rotate together with the nut, unable mounting nut. In this embodiment, there are two auxiliary holes.

The joint of the piston mounting part 21 and the spring mounting part 22 is provided with a bearing gasket 3, and the spring 4 is pressed against the bearing gasket 3.

The utility model discloses a theory of operation is: when the gas pole during operation, the operation of piston rod at first extrudees the spring, relies on the spring to carry out buffering for the first time, extrudees preset position when the spring, extrudees the spring gasket again, relies on the spring gasket to cushion, based on the dual function of spring and spring gasket, realizes the whole buffering of gas pole.

Claims (3)

1. A buffering air rod comprises an air rod main body and is characterized in that a piston rod of the air rod main body is arranged in a step shape and comprises a piston installation part, a spring installation part and a threaded part which are sequentially arranged, a buffering gasket is installed on the spring installation part, then a spring is sleeved on the spring installation part, one end of the spring is propped against the piston installation part, the other end of the spring is propped against a main gasket positioned at one end of the air rod main body and limited by the main gasket, and a nut is installed after the threaded part sequentially penetrates through the main gasket and the spring gasket; the spring gasket be circular setting, seted up oval hole at this spring gasket's middle part, this oval hole with screw thread portion adaptation, the whole oval setting in cross-section of this screw thread portion, the segmental arc of this screw thread portion with nut screw-thread fit, be provided with at least one auxiliary hole on the spring gasket that is close oval hole one side.

2. The buffer gas lever as claimed in claim 1, wherein a bearing spacer is installed at a connection of the piston mounting portion and the spring mounting portion, and the spring is supported against the bearing spacer.

3. The buffer gas lever as claimed in claim 1, wherein the number of the auxiliary holes is two.

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