TH20532U - Shock absorber - Google Patents

Abstract

A shock absorber consists of a hollow oil cylinder with a closed top and bottom base to accommodate the sliding shaft. One end of the shaft passes through the bottom base and connects to the piston inside the oil cylinder, while the other end remains outside the cylinder to support the shaft mounting base. An external force absorber is installed between the oil cylinder and the shaft to dampen the extension and retraction forces within the cylinder. A side base on the oil cylinder connects to a fluid flow control mechanism to regulate the flow of fluid between the inner space of the oil cylinder and the inner space of the auxiliary oil tube.

Claims (4)

1. The shock absorber has main components consisting of an oil cylinder (1) which is a long, open tube with an inner cavity to hold oil. The top of the oil cylinder (1) has an upper base (2) which is a closed base or closed structure installed for mounting to an external mounting support. The bottom of the oil cylinder (1) has a lower base (3) which is a closed base or closed structure with a hole for insertion to support the sliding in-out of the sliding rod (4). The sliding rod (4) is a rod with one end that passes through the lower base (3) and is installed into the piston inside the inner cavity of the oil cylinder (1), and the other end of the sliding rod (4) is outside the oil cylinder (1) for mounting to the sliding rod mounting base (5), which is a mounting base or mounting structure for mounting to an external mounting support. The external mounting or between the oil cylinder (1) and the sliding shaft (4) will help absorb the force. The external mounting (6) consists of an external threaded base (7) which is a threaded base on the outside of the oil cylinder (1) to support the up-down rotation of the internal threaded ring (8) to adjust the level of the upper stopper of the outer spring rod (9), while the lower part of the outer spring rod (9) is restrained by the lower restraining base (10) which is a base or supporting structure mounted on the sliding shaft mounting base (5) to absorb the force of the extension-retraction when the sliding shaft (4) is attached to the inside of the oil cylinder (1), and the side of the oil cylinder (1) has a side connecting base (11) which is a side structure with an inner gap connecting to the inside of the oil cylinder (1) and an outer open end (12) installed to support the installation of the oil flow adjuster (13) to control the flow of oil between the inner gap of the oil cylinder (1) and the inner gap of the pipe. Side auxiliary oil (14), which the side auxiliary oil pipe (14) is a closed-end pipe with an inner cavity for installation into the side connection base (11) in such a way that the cavity of the side connection base (11) is connected to the cavity of the side auxiliary oil pipe (14) for storing auxiliary oil for transmission into and out of the inner cavity of the oil cylinder (1). It has a special feature: the oil flow adjustment part (13) consists of an inner insert base (15) which is a closed-end pipe or closed structure installed in the inner cavity of the side connection base (11), while the back of the side connection base (11) has a rear sliding shaft (16) which is a long rod or pipe installed in such a way that the front is inserted into the inner of the inner support base (15) and the back is long outside the inner support base (15) for receiving rotational torque so that the rear sliding shaft (16) can slide in and out inside the inner support base (15) and the back The inner base (15) has a rear mounting base (17) which is a cover or a covering structure for fitting onto the back of the inner base (15) so that the front of the rear mounting base (17) is fitted into the open end slot (12) of the side connection base (11), while the inner base (15) is fitted in the inner gap of the side connection base (11) in such a way that the rear end of the sliding shaft (16) can pass through the rear mounting base (17), and the front of the inner base (15) has an oil inlet/outlet pipe (18) which is an open pipe with the open end at the back fitted into the front of the inner base (15) in such a way that the open end at the back of the oil inlet/outlet pipe (18) can be inserted/extracted by the front end of the sliding shaft (16) from the rotation of the sliding shaft (16) for control. The oil flowing through from the inner cavity of the oil cylinder (1) as it passes through the front open end of the pipe (19) is allowed to flow out through at least one side hole of the pipe (20) into the inner cavity of the side auxiliary oil pipe (14) in the required amount. On the outside of the oil inlet-outlet pipe (18) there is an outer shoulder (21) which is fitted to prevent oil from flowing through from the inner cavity of the oil cylinder (1) in addition to flowing through the front open end of the pipe (19) into the side hole of the pipe (20). The outer shoulder (21) has at least two through holes on the sides (22) spaced apart to allow the oil to flow back from the inner cavity of the side auxiliary oil pipe (14) into the inner cavity of the oil cylinder (1). On the front of the outer shoulder (21) there is a front baffle (23) which is fitted to prevent oil from flowing through from the inner cavity of the side auxiliary oil pipe (14) in the required amount. The side through-hole blocking plate (22) is installed in a sliding position to close the side through-hole (22) under the pressure of oil passing through the side through-hole (22) and closes back into the side through-hole (22) after the oil pressure has stopped passing through the side through-hole (22), or the outer surface of the oil inlet/outlet pipe (18) is the external threaded surface of the pipe (28) for receiving the internal threaded locking rim (29) to lock the external accessory component to the outer surface of the oil inlet/outlet pipe (18). 2. The shock absorber under claim 1, the outer surface of the side connecting base (11) shall have a position indicator (26) which is a symbol on the outer surface of the side connecting base (11) installed to indicate the position of the rear sliding shaft (16). 3. The shock absorber according to claim 1, on the back of the rear mounting base (17) has a rotating base (27) which is in the form of a rotating cover or a rotating structure installed for mounting onto the rear end of the rear sliding shaft (16) while the rear end of the rear sliding shaft (16) is inserted through the rear mounting base (17) to help in rotating the rear sliding shaft (16). 4. Under claim 1, the outer seal (21) shall have at least two through holes (24) spaced apart to allow oil to flow from the inner cavity of the oil cylinder (1) to the rear of the outer seal (21) in case the oil pressure transmitted from the inner cavity of the oil cylinder (1) is too high or too large for the front open end of the tube (19) to withstand. The rear of the outer seal (21) shall have a rear baffle (25) which is a plate that closes the through hole (24) and is installed in a sliding position to close the through hole (24) when oil pressure is transmitted from the through hole (24), and closes back to the through hole (24) after no oil pressure is transmitted from the through hole (24).