Elastic damper adopting one-way valve for oil injection

Abstract

The utility model relates to the technical field of dampers, in particular to an elastic damper adopting a one-way valve for oil injection. Comprising a supporting bottom plate, a one-way valve support and an auxiliary mechanism, a lower pressure-bearing threaded sleeve is arranged on the supporting bottom plate, a lower copper sleeve is arranged on one side of the lower pressure-bearing threaded sleeve, and the auxiliary mechanism comprises a one-way valve, a barrel, a piston, a steel pipe, a matching device and a sealing device. Due to internal pressure, the piston is still located at the upper starting point position, oil can be supplemented at any time as needed, oil can be injected into the damper only by detaching a plug on the inlet side of the one-way valve and connecting an oil pipe to the inlet of the one-way valve in the oil injection process, and due to the fact that the one-way valve is installed on the side face of the damper in the oil injection process, oil can be supplemented even in the installation and use state. Therefore, the structure of the one-way valve assembly can be optimized, oil can be supplemented to the damper even in the installation and use state, and the use convenience is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dampers, in particular to an elastic damper which adopts a one-way valve for oil injection. Background Art

[0002] The damper is a common damping rod, buffer rod, etc. The structure of the damper includes: a cylinder body, a piston rod arranged in the cylinder body, and a piston arranged at the front end of the piston rod. The cylinder body is filled with hydraulic oil. At present, the damper is also commonly used in automatic control equipment for buffering.

[0003] When the damper is in use, oil needs to be injected into the inside, but traditionally, an oil injector is usually used to inject hydraulic oil into the cylinder. The disadvantage is that the injection amount of the hydraulic oil needs to be manually controlled, which can easily cause the hydraulic oil to overflow.

[0004] Currently, oil is injected by setting a one-way valve assembly at the bottom of the damper. However, the one-way valve assembly is installed at the bottom, which is not only difficult to process, but also prone to oil leakage. It is also troublesome to add oil. The damper must be removed when adding oil, and it is difficult to perform quick oil addition when in use. Utility Model Content

[0005] The utility model aims to provide an elastic damper using a one-way valve for oil injection, aiming to optimize the structure of the one-way valve assembly so that the damper can be replenished with oil even in the installed and used state, thereby greatly improving the convenience of use.

[0006] To achieve the above-mentioned purpose, the utility model provides an elastic damper using a one-way valve for oil injection, comprising a supporting base plate and a one-way valve bracket, wherein a lower pressure-bearing screw sleeve is arranged on the supporting base plate, a lower copper sleeve is arranged on one side of the lower pressure-bearing screw sleeve, the one-way valve bracket is fixedly connected to the supporting base plate and is located on one side of the supporting base plate, and further comprises an auxiliary mechanism;

[0007] The auxiliary mechanism includes a one-way valve, a cylinder, a piston, a steel pipe, a matching device and a sealing device. The one-way valve is fixed to the one-way valve bracket through a U-shaped fixing frame. The cylinder is threadedly connected to the lower pressure-bearing screw sleeve and is located on the supporting bottom plate. An upper pressure-bearing screw sleeve is arranged on the top of the cylinder, and the upper pressure-bearing screw sleeve is threadedly connected to the cylinder. An upper copper sleeve is arranged on one side of the upper pressure-bearing screw sleeve. The piston is located in the cylinder and is slidably connected to the cylinder. Both ends of the steel pipe are threaded and are detachably connected to the cylinder and the one-way valve, respectively, and are located between the one-way valve and the cylinder. The matching device is arranged on the upper and lower sides of the piston. The sealing device is respectively arranged between the matching device and the lower copper sleeve and between the matching device and the upper copper sleeve.

[0008] Wherein, the matching device comprises an upper pressure plate and a lower pressure plate, wherein the upper pressure plate is arranged between the piston and the upper pressure-bearing screw sleeve; and the lower pressure plate is arranged between the piston and the lower pressure-bearing screw sleeve.

[0009] Wherein, the sealing device comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is arranged between the upper pressing plate and the upper copper sleeve; and the second sealing ring is arranged between the lower pressing plate and the lower copper sleeve.

[0010] Wherein, the first sealing ring and the second sealing ring are both V-shaped.

[0011] Wherein, dust rings are respectively arranged between the upper pressure-bearing screw sleeve, the lower pressure-bearing screw sleeve and the piston.

[0012] The utility model discloses an elastic damper adopting one-way valve oil injection, a lower pressure-bearing screw sleeve is arranged on a supporting bottom plate, a lower copper sleeve is arranged on one side of the lower pressure-bearing screw sleeve, a one-way valve bracket is installed on one side of the supporting bottom plate, the one-way valve is fixed on the one-way valve bracket through a U-shaped fixing frame, an upper pressure-bearing screw sleeve is arranged on the top of a cylinder body, the cylinder body is respectively threadedly connected with the lower pressure-bearing screw sleeve and the upper pressure-bearing screw sleeve, an upper copper sleeve is arranged on one side of the upper pressure-bearing screw sleeve, a piston is located in the cylinder body and is slidably connected with the cylinder body, both ends of a steel pipe are threaded, and are respectively detachably connected with the cylinder body and the one-way valve, a matching device is arranged on the upper and lower sides of the piston, a sealing device is respectively arranged between the matching device and the lower copper sleeve and between the matching device and the upper copper sleeve, and the steel pipe is respectively connected with the cylinder body, After the one-way valve is connected, a plug is set at the oil inlet of the one-way valve. All connections are conical hard seals to prevent leakage. When filling oil for the first time, the piston needs to be in the upper starting position. When the damper is in the finished state or in use, the piston is still in the upper starting position due to internal pressure. If necessary, oil can be added at any time. When filling oil, just remove the plug on the inlet side of the one-way valve first, connect the oil pipe to the inlet of the one-way valve, and then you can fill oil into the damper. Since the one-way valve is installed on the side of the damper during oil filling, oil can be added even when it is installed and used, and then the structure of the one-way valve assembly can be optimized to achieve oil replenishment of the damper even when it is installed and used, greatly improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a top view of the elastic damper of the utility model which adopts the one-way valve for oil injection.

[0015] Figure 2 This utility model is along Figure 1 Sectional view of AA.

[0016] In the figure: 101-support base plate, 102-check valve bracket, 103-lower pressure-bearing screw sleeve, 104-lower copper sleeve, 105-check valve, 106-cylinder, 107-piston, 108-steel pipe, 109-U-shaped fixing frame, 110-upper pressure-bearing screw sleeve, 111-upper copper sleeve, 112-upper pressure plate, 113-lower pressure plate, 114-first sealing ring, 115-second sealing ring, 116-dust ring. DETAILED DESCRIPTION

[0017] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0018] like Figure 1 and Figure 2 As shown, Figure 1 It is a top view of an elastic damper with oil injection using a one-way valve. Figure 2 This utility model is along Figure 1 The cross-sectional view of AA in the middle shows that the utility model provides an elastic damper using a one-way valve for oil injection: it includes a support base plate 101, a one-way valve bracket 102 and an auxiliary mechanism, a lower pressure-bearing screw sleeve 103 is arranged on the support base plate 101, and a lower copper sleeve 104 is arranged on one side of the lower pressure-bearing screw sleeve 103, the auxiliary mechanism includes a one-way valve 105, a cylinder 106, a piston 107, a steel pipe 108, a matching device and a sealing device, the matching device includes an upper pressure plate 112 and a lower pressure plate 113, and the sealing device includes a first sealing ring 114 and a second sealing ring 115. The above scheme can optimize the structure of the one-way valve assembly, so that the damper can be replenished with oil even in the installed and used state, which greatly improves the convenience of use. It can be understood that the above scheme can realize convenient oil injection when the damper is used.

[0019] In this embodiment, a lower pressure-bearing screw sleeve 103 is provided on the support base plate 101, a lower copper sleeve 104 is provided on one side of the lower pressure-bearing screw sleeve 103, and the one-way valve bracket 102 is fixedly connected to the support base plate 101 and is located on one side of the support base plate 101. The lower pressure-bearing screw sleeve 103 facilitates the installation of the bottom of the cylinder 106, the lower copper sleeve 104 is used for the sliding guide of the piston 107, and the one-way valve bracket 102 is fixed to the support base plate 101 by bolts.

[0020] Among them, the one-way valve 105 is fixed on the one-way valve bracket 102 through a U-shaped fixing frame 109, the cylinder 106 is threadedly connected to the lower pressure-bearing screw sleeve 103 and is located on the supporting base plate 101, an upper pressure-bearing screw sleeve 110 is arranged on the top of the cylinder 106, the upper pressure-bearing screw sleeve 110 is threadedly connected to the cylinder 106, and an upper copper sleeve 111 is arranged on one side thereof, the piston 107 is located in the cylinder 106 and is slidably connected to the cylinder 106, the steel pipe 108 has threads at both ends, and is detachably connected to the cylinder 106 and the one-way valve 105, and is located between the one-way valve 105 and the cylinder 106, the matching device is arranged on the upper and lower sides of the piston 107, and the sealing device is respectively arranged between the matching device and the lower copper sleeve 104 and between the matching device and the upper copper sleeve 111. The one-way valve 105 is fixed on the one-way valve bracket 102 through the U-shaped fixing frame 109 and the fastening nut. A threaded plug is installed on the oil inlet of the one-way valve 105. The upper pressure-bearing screw sleeve 110 is installed on the top of the cylinder 106. The cylinder 106 is connected with the lower pressure-bearing screw sleeve 103 and the upper pressure-bearing screw sleeve 110 by a large gap sawtooth thread, which has a high load-bearing capacity and is not easy to cause grinding. The upper copper sleeve 111 is used for the sliding guide of the piston 107. The steel pipe 108 has threads at both ends. A threaded connector is installed on it, and one side of the steel pipe 108 is connected to the cylinder 106 and the liquid outlet of the one-way valve 105 respectively through a sleeve-type copper tube nut, and the connection points are all conical hard seals to better prevent leakage. The matching device is arranged on the upper and lower sides of the piston 107 for sliding cooperation of the piston 107. The sealing device is respectively arranged between the matching device and the lower copper sleeve 104 and between the matching device and the upper copper sleeve 111, and is used for sealing the sliding part between the piston 107 and the inside of the cylinder 106.

[0021] Secondly, the upper pressure plate 112 is arranged between the piston 107 and the upper pressure screw sleeve 110, and the lower pressure plate 113 is arranged between the piston 107 and the lower pressure screw sleeve 103. The upper pressure plate 112 and the lower pressure plate 113 are fixed by bolts respectively.

[0022] Then, the first sealing ring 114 is arranged between the upper pressing plate 112 and the upper copper sleeve 111; the second sealing ring 115 is arranged between the lower pressing plate 113 and the lower copper sleeve 104. The first sealing ring 114 is sleeved on the outside of the piston 107 and is located between the upper pressing plate 112 and the upper copper sleeve 111 after installation; the second sealing ring 115 is sleeved on the outside of the piston 107 and is located between the lower pressing plate 113 and the lower copper sleeve 104 after installation.

[0023] Furthermore, the first sealing ring 114 and the second sealing ring 115 are both V-shaped. The first sealing ring 114 and the second sealing ring 115 are respectively V-shaped rubber sealing rings, forming a V-shaped sealing structure above and below the piston 107.

[0024] Finally, dust rings 116 are respectively arranged between the upper pressure-bearing screw sleeve 110, the lower pressure-bearing screw sleeve 103 and the piston 107. The dust rings 116 are used to prevent dust and prevent external impurities from entering the interior when the piston 107 moves.

[0025] When the utility model is used to realize convenient oil filling when the damper is used, the steel pipe 108 is connected to the cylinder 106 and the one-way valve 105 respectively, and a plug is set at the oil inlet of the one-way valve 105. Each connection is a conical hard seal, so that leakage can be effectively prevented. When the oil is filled for the first time, the piston 107 needs to be in the upper starting point position. When the damper is in the finished product state or the use state, due to the internal pressure, the piston 107 can still be in the upper starting point position. If necessary, oil can be replenished at any time. When filling the oil, it is only necessary to remove the plug on the inlet side of the one-way valve 105, connect the external oil pipe to the inlet of the one-way valve 105, and then oil can be filled into the damper. Since the one-way valve 105 is installed on the side of the damper during oil filling, oil can be replenished even in the installed and used state, and then the structure of the one-way valve assembly can be optimized, so that the damper can be replenished with oil even in the installed and used state, which greatly improves the convenience of use.

[0026] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An elastic damper using a one-way valve for oil injection, comprising a supporting base plate and a one-way valve bracket, wherein a lower pressure-bearing screw sleeve is arranged on the supporting base plate, a lower copper sleeve is arranged on one side of the lower pressure-bearing screw sleeve, the one-way valve bracket is fixedly connected to the supporting base plate and is located on one side of the supporting base plate, characterized in that: It also includes auxiliary institutions; The auxiliary mechanism includes a one-way valve, a cylinder, a piston, a steel pipe, a matching device and a sealing device. The one-way valve is fixed to the one-way valve bracket through a U-shaped fixing frame. The cylinder is threadedly connected to the lower pressure-bearing screw sleeve and is located on the supporting bottom plate. An upper pressure-bearing screw sleeve is arranged on the top of the cylinder, and the upper pressure-bearing screw sleeve is threadedly connected to the cylinder. An upper copper sleeve is arranged on one side of the upper pressure-bearing screw sleeve. The piston is located in the cylinder and is slidably connected to the cylinder. Both ends of the steel pipe are threaded and are detachably connected to the cylinder and the one-way valve, respectively, and are located between the one-way valve and the cylinder. The matching device is arranged on the upper and lower sides of the piston. The sealing device is respectively arranged between the matching device and the lower copper sleeve and between the matching device and the upper copper sleeve.

2. The elastic damper using a one-way valve for oil injection as claimed in claim 1, characterized in that: The matching device comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate is arranged between the piston and the upper pressure-bearing screw sleeve; and the lower pressing plate is arranged between the piston and the lower pressure-bearing screw sleeve.

3. The elastic damper using a one-way valve for oil injection as claimed in claim 2, characterized in that: The sealing device comprises a first sealing ring and a second sealing ring, wherein the first sealing ring is arranged between the upper pressing plate and the upper copper sleeve; and the second sealing ring is arranged between the lower pressing plate and the lower copper sleeve.

4. The elastic damper using a one-way valve for oil injection as claimed in claim 3, characterized in that: The first sealing ring and the second sealing ring are both V-shaped.

5. The elastic damper using a one-way valve for oil injection as claimed in claim 1, characterized in that: Dust rings are respectively arranged between the upper pressure-bearing screw sleeve, the lower pressure-bearing screw sleeve and the piston.

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