Damper capable of changing damping

Abstract

The damper is characterized in that the damper comprises a shaft sleeve, a rotating shaft, two one-way valve plates, an adjusting piece and a nut, the shaft sleeve is divided into a containing cavity and an adjusting cavity by a partition plate in the axial direction, a center through hole and a through-flow hole are formed in the partition plate, oil separation ribs which are oppositely and longitudinally arranged are arranged in the containing cavity, and the adjusting piece is arranged in the adjusting cavity. A rotating shaft and two one-way valve plates are further arranged in the containing cavity, the rotating shaft is in sealing running fit with the shaft sleeve and disturbs flowing of the damping oil, the rotating shaft comprises a shaft core and two rotor wings oppositely arranged relative to the shaft core, and symmetrical radial gradually-changing type arc faces are formed between the two rotor wings. The one-way valve plates are respectively sleeved on two rotor wings of the rotating shaft and are in sliding fit with the inner cavity wall of the shaft sleeve; oil passing grooves are symmetrically formed in a partition plate at the bottom of the accommodating cavity between the two oil separation ribs; and a replaceable adjusting piece is arranged in the adjusting cavity. The scheme is applied to the closestool cover plate, segmented precise control of the closestool cover plate can be achieved, and the damping of the damper can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of sanitary ware, and in particular to a damper with adjustable damping. Background Technology

[0002] Existing toilet seats are required to lift quickly and smoothly, and to fall slowly and quietly. Existing spiral dampers are relatively complex and expensive.

[0003] To address the above problems, the present invention provides a preferred solution. Utility Model Content

[0004] The purpose of this invention is to provide a heavy-duty damping mechanism that utilizes the damping characteristics of damping oil and springs to withstand heavy damping loads.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An adjustable damper includes a bushing, a rotating shaft, two one-way valves, an adjusting element, and a nut. The bushing is axially divided into a receiving cavity and an adjusting cavity by a partition plate. The partition plate has a central through hole and a flow hole. The receiving cavity has oil-separating ribs arranged longitudinally. The receiving cavity also contains a rotating shaft that rotates and seals with the bushing, agitating the flow of damping oil, and two one-way valves. The rotating shaft includes a shaft core and two rotors facing each other, forming a symmetrical radially tapered arc surface. Each rotor has one of the one-way valves fitted onto it and slidingly engaging with the inner wall of the bushing. The bottom partition plate of the receiving cavity between the two oil-separating ribs has symmetrically arranged oil passage grooves. The adjusting cavity contains a replaceable adjusting element. The lower end of the shaft core is embedded in the central through hole of the partition plate. The bottom of the adjusting cavity is sealed to the nut.

[0007] Preferably, the two rotors are centrally symmetrical and each includes an oil-blocking surface and an oil-draining surface.

[0008] Preferably, the adjusting element is a sponge.

[0009] Preferably, the one-way valve plate has a U-shaped groove that forms a clearance fit with the rotating shaft rotor in the rotation direction. The outer side of the U-shaped groove forms an outer arc surface that is in contact with the inner wall of the bushing when swinging relative to one side of the rotating shaft rotor, and deviates from the inner wall of the bushing when swinging to the other side. An oil sealing plate and an oil drain plate are respectively provided on both sides of the U-shaped groove, and a number of oil passages are provided at intervals on both the oil sealing plate and the oil drain plate.

[0010] Preferably, the outer arc surface of the one-way valve plate is provided with evenly spaced oil drain grooves.

[0011] Preferably, the U-shaped slot is provided with a foolproof groove on one side, and correspondingly, the roots of the two rotors are provided with foolproof bosses, which are centrally symmetrical.

[0012] The above scheme uses replaceable adjustment components in the adjustment chamber. By replacing adjustment components of different thicknesses or volumes, the flow rate of damping oil through the central through hole can be changed, thereby adjusting the damping magnitude of the damper. Attached Figure Description

[0013] Figure 1 This is an exploded view of the three-dimensional structure of this utility model.

[0014] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention.

[0015] Figure 3 This is a perspective view of the rotating shaft structure of this utility model.

[0016] Figure 4 The one-way valve plate three-dimensional structure of this utility model Figure 1 .

[0017] Figure 5 The one-way valve plate three-dimensional structure of this utility model Figure 2 .

[0018] Figure 6 This is a top view of the internal structure of the bushing of this utility model.

[0019] Figure 7 This is a bottom view of the internal structure of the bushing of this utility model.

[0020] Figure 8 This is a diagram showing the first working state of this utility model.

[0021] Figure 9 This is a diagram showing the second working state of this utility model.

[0022] Figure 10 This is a diagram showing the third working state of this utility model.

[0023] Figure 11 This is the fourth working state diagram of this utility model.

[0024] Figure 12 This is a cross-sectional view of the present invention in its working state. Detailed Implementation

[0025] The technical solution and beneficial effects of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] An adjustable damper includes a bushing 1, a rotating shaft 2, two one-way valve plates 3, an adjusting element 4, and a nut 5.

[0027] Among them, such as Figure 1 and Figure 2 As shown, the bushing 1 is axially divided into a receiving cavity 11 and an adjusting cavity 12 by a partition 10. The partition 10 is provided with a central through hole 101 and two sets of flow holes 102. The receiving cavity 11 has oil-separating ribs 111 arranged relatively longitudinally. The receiving cavity 11 also contains a rotating shaft 2 that is sealed and rotates with the bushing 1 and disturbs the flow of damping oil, as well as two one-way valve plates 3. Specifically, the outer side of the rotating shaft 2 is sealed to the bushing 1 by a gasket 6, a sealing ring 7, and then a pressure ring 8 is welded on.

[0028] like Figure 3 As shown, the rotating shaft 2 includes a shaft core 21 and two rotors 22 facing each other relative to the shaft core 21. The two rotors 22 are centrally symmetrical and each includes an oil-blocking surface 221 and an oil-draining surface 222. A foolproof boss 224 is provided at the root of each rotor 22, also centrally symmetrical. A symmetrical radially tapered arc surface 23 is formed between the two rotors 22. Each rotor 22 of the rotating shaft 2 is fitted with a one-way valve plate 3, which slides in cooperation with the inner cavity wall of the bushing 1. The bottom partition plate 10 of the accommodating cavity 11 between the two oil-separating ribs 111 has centrally symmetrically arranged oil passage grooves 103. The end face of the rotating shaft 2 that mates with the bushing 1 has symmetrically arranged oil passage grooves 201.

[0029] like Figure 6 and Figure 7 As shown, the lower end of the shaft core 21 is embedded in the central through hole 101 on the partition plate 10, and the flow holes 102 are distributed on both sides of the oil-separating rib 111. The bottom of the bushing 1 is screwed to the nut 5, and an O-ring seal 51 is provided between the bushing 1 and the nut 5. The nut 5 and the partition plate 10 maintain a certain distance, forming the aforementioned adjustment cavity 12. The adjustment cavity 12 is provided with a replaceable adjustment element 4. Specifically, the adjustment element 4 is a sponge that can produce flexible deformation.

[0030] like Figure 4 and Figure 5 As shown, the one-way valve plate 3 has a U-shaped groove 31 that forms a clearance fit with the rotor 22 of the rotating shaft 2 in the rotation direction. An outer arc surface 32 is formed on the outer side of the U-shaped groove 31, and the outer arc surface 32 is provided with evenly spaced oil drain grooves 321.

[0031] When the one-way valve plate 3 swings relative to the rotor 22 in one direction, the outer arc surface 32 is in contact with the inner wall of the bushing 1. When it swings in the opposite direction, the outer arc surface 32 deviates from the inner wall of the bushing 1. Support feet 301 are provided on both sides of the U-shaped groove 31, and an oil passage 300 is provided between the support feet 301. An oil scraper surface 311 is provided on one side of the U-shaped groove 31, and the oil drain groove 321 is provided on the opposite side of the oil scraper surface 311. Anti-fooling grooves 302 are provided at both ends of the inner side of the oil drain groove 321.

[0032] The working process of the damper with the above structure is as follows:

[0033] like Figure 8 As shown, when the toilet seat begins to fall, the rotating shaft 2 rotates, causing the one-way valve plate 3 to slide along the inner wall of the bushing 1. At this time, the support foot 301 of the one-way valve plate 3 is in contact with the oil-blocking surface 221 of the rotor 22, and the one-way valve plate 3 does not pass oil. At the same time, the scraper surface 311 of the outer arc surface 32 is in close contact with the inner wall of the bushing 1, and the gradually changing arc surface 23 of the shaft core 21 of the rotating shaft 2 and the oil-blocking rib 111 form an oil passage gap. The damping oil in the high-pressure chamber flows to the low-pressure chamber through the oil passage gap, the oil passage groove 103 and the oil passage groove 201, the flow hole 101 on the partition 10 and the regulating chamber 12. During this process, the damping oil can form a rapid oil passage, thereby causing the toilet seat to fall quickly.

[0034] like Figure 9 As shown, when the damper rotates to the second half of its stroke, the oil passage gap formed between the gradually curved surface 23 of the shaft core 21 and the oil-separating rib 111 becomes smaller and smaller until the gradually curved surface 23 and the oil-separating rib 111 completely come into contact, and the oil passage groove 103 and the oil passage groove 201 no longer function. At this time, the damping oil can only pass through the flow hole 101 on the partition plate 10 and the adjustment cavity 12, so as to achieve a slow drop in the second half of the stroke.

[0035] like Figure 10 As shown, when the toilet seat begins to lift, the rotating shaft 2 drives the one-way valve plate 3 to rotate in the opposite direction. The rotor 22 of the rotating shaft 2 leaves the oil-blocking surface 221 of the one-way valve plate 3 and abuts against the oil drain surface 222. The oil passage formed between the several oil ports 300 between the support feet 301 is opened. At the same time, the outer arc surface 34 of the one-way valve plate 3 swings inward, and the oil drain groove 321 of the outer arc surface 32 is activated. The damping oil in the high-pressure chamber flows to the low-pressure chamber at a relatively fast speed through the oil port 300, the oil drain groove 321, the flow hole 102 on the partition, and the regulating chamber 12.

[0036] The cover is lifted to the second half, as... Figure 11 As shown, damping oil can pass through the oil passage 300 of the one-way valve plate 3, the oil passage gap formed between the gradient arc surface 23 and the oil separator 111, the oil passage groove 103 and the oil passage groove 201, and the flow hole 101 on the partition plate 10 and the regulating chamber 12 to quickly pass from the high pressure chamber to the low pressure chamber, and the cover plate can be easily lifted.

[0037] like Figure 12 As shown, depending on the application requirements, if the damper is applied to a relatively heavy cover plate assembly and a damper with greater damping is required, an adjusting member 4 with a larger thickness or volume can be selected; while if the damper is applied to a relatively light cover plate assembly and a damper with less damping is required, an adjusting member 4 with a smaller thickness or volume can be selected.

[0038] The above embodiments are only for illustrating the technical concept of this utility model and should not be used to limit the protection scope of this utility model. Any improvements or equivalent substitutions made based on the technical concept proposed by this utility model shall fall within the protection scope of this utility model.

Claims

1. A damper with adjustable damping, characterized in that The utility model provides a damper, including shaft sleeve, pivot, two one-way valve piece, adjusting spare and nut, wherein, the shaft sleeve is divided into a containing cavity and an adjusting cavity by a partition plate along the axial direction, the partition plate is equipped with center through hole and through flow hole, the containing cavity has opposite longitudinal setting oil separation rib, the containing cavity is equipped with pivot and two one-way valve piece with the sealed rotation cooperation of shaft sleeve and the disturbance damping oil flow, wherein, the pivot includes shaft core and two rotors which are set opposite to the shaft core, and the symmetric radial gradually changing type camber is formed between two rotors, and each rotor is equipped with a one-way valve piece and is in sliding fit with the inner cavity wall of shaft sleeve, the bottom of the containing cavity between two oil separation ribs is equipped with the symmetricly arranged oil passing groove, the adjusting cavity is equipped with replaceable adjusting spare, the lower end of shaft core is embedded in the center through hole on the partition plate, and the adjusting cavity bottom is in sealed connection with the nut.

2. A damper with adjustable damping according to claim 1, characterized in that The two rotors are centrally symmetric, and each rotor comprises an oil blocking surface and an oil leaking surface.

3. A damper with adjustable damping according to claim 1, characterized in that The adjusting spare is a sponge.

4. A damper with adjustable damping according to claim 1, characterized in that The one-way valve piece has a U-shaped clamping groove in clearance fit with the rotor in the rotating direction, and the outer arc surface of the U-shaped clamping groove is in abutment with the inner wall of the shaft sleeve when the rotor swings to one side and is offset from the inner wall of the shaft sleeve when the rotor swings to the other side.

5. A variable-damping damper as claimed in claim 4, wherein the first and second damping elements are arranged to be in contact with each other when the damper is in the first position and to be in contact with each other when the damper is in the second position. The outer arc surface of the one-way valve piece is provided with uniformly spaced oil leaking grooves.

6. A damper with adjustable damping according to claim 4, characterized in that The U-shaped clamping groove is provided with a foolproof groove on one side, and the two rotors are respectively provided with foolproof bosses at the roots and are centrally symmetric.

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