CN211459978U - Damper with adjustable damping angle - Google Patents

Abstract

The utility model discloses a attenuator of adjustable damping angle, it includes: the shell comprises an inner cavity, the lower end of the inner cavity is opened, the upper end of the inner cavity is provided with an end part, the middle of the end part is provided with a through hole, and the inner wall of the inner cavity is provided with a radial spacer A; the rotating shaft comprises a round shaft section and a flat shaft section, the round shaft section is rotatably arranged in the inner cavity, the round shaft section is provided with a radial spacer B, the spacer B extends to the inner wall of the inner cavity, and the inner cavity is separated into a front cavity and a rear cavity by the spacer A and the spacer B; the end cover is fixedly arranged at an opening at the lower end of the inner cavity; the adjusting disc comprises a disc part and an extension part, the disc part is arranged on the end cover in a rotating sealing mode, the upper end face of the disc part is simultaneously abutted against the lower end faces of the spacer A and the spacer B, an oil passing groove is formed in the upper end face of the disc part, and the extension part penetrates through the shaft hole M to the outer side; the utility model discloses a through setting up the adjusting disk with the relative rotation angle of shell, adjust the damping angle of attenuator.

Description

Damper with adjustable damping angle

Technical Field

The utility model relates to a attenuator, especially an adjustable damping angle's attenuator.

Background

In the prior art, a damper applied to a toilet lid is generally a rotary damper, and the performance of the damper is required to be undamped and labor-saving when the cover plate is opened, and the damper can play a damping role when the cover plate is closed so that the damper slowly falls down for safety and silence. However, the cover plates are of various types, different in weight and different in requirements of customers on slow-falling angles of the dampers, so that various dampers are required to be developed according to different use occasions and different customer requirements, basic change of the dampers is realized by changing parameters of the oil passing grooves, and accordingly design and development cost, mold cost and production management cost of damper manufacturers are greatly increased.

Disclosure of Invention

The utility model discloses the technical problem that will solve is not enough to above-mentioned prior art. The damper with the adjustable damping angle can freely adjust the internal oil passing groove according to different customer requirements and different cover plate weights, so that the damping angle and the damping time are controlled.

In order to achieve the above object, the utility model adopts the following technical scheme: a damper with adjustable damping angle, characterized by comprising: the outer shell comprises an inner cavity, the lower end of the inner cavity is open, the upper end of the inner cavity is provided with an end part, a through hole is formed in the middle of the end part, a radial spacer A is arranged on the inner wall of the inner cavity, and the upper part of the spacer A is fixedly connected with the end part;

the rotating shaft comprises a round shaft section and a flat shaft section, the round shaft section is rotatably arranged in the inner cavity, the round shaft section is provided with a radial spacer B, the spacer B extends to the inner wall of the inner cavity, the flat shaft section penetrates through the through hole to extend outwards, and the spacer A and the spacer B separate the inner cavity into a front cavity and a rear cavity;

the end cover is fixedly arranged at an opening at the lower end of the inner cavity, and a shaft hole M is arranged in the middle of the end cover;

the adjusting disc comprises a disc part and an extension part, the disc part is arranged on the end cover in a rotating sealing mode, the upper end face of the disc part is simultaneously abutted against the lower end faces of the spacer A and the spacer B, an oil passing groove is formed in the upper end face of the disc part, and the extension part penetrates through the shaft hole M to the outer side;

and adjusting the damping angle of the damper by setting the relative rotation angle of the adjusting disc and the shell.

Preferably, the adjusting device further comprises an adjusting knob and a fastening nut, the adjusting knob is fixedly arranged on the extending portion and matched with the end cover through a stop structure to stop, and the fastening nut is used for fixing the adjusting knob.

Preferably, the stop structure comprises a protrusion and a concave hole which are matched with each other, and the protrusion and the concave hole are respectively arranged on the contact surface of the end cover and the adjusting knob.

Preferably, the extension part is provided with a notch and a thread, and the middle of the adjusting knob is provided with a shaft hole N matched with the notch; the fastening nut is engaged with the screw thread and fastens the adjusting knob.

Preferably, the liquid-saving device further comprises a one-way valve, wherein the one-way valve is fixedly arranged on the rotating shaft, so that liquid between two adjacent chambers flows in a one-way mode.

Preferably, the check valve comprises a spring and a ball plug, an oil filling hole section, an oil passing hole section, a channel E and a channel F are arranged in the middle of the rotating shaft, the diameter of the oil filling hole section is larger than that of the oil passing hole section, the channel E is communicated with the oil filling hole section and the front cavity, and the channel F is communicated with the oil passing hole section and the rear cavity; the blocking ball is movably arranged at the position of the oil filling hole section between the position of blocking and the position of opening the oil passing hole section under the action of the pre-tightening force of the spring.

Preferably, the oil filling device further comprises a plug, wherein the plug is fixedly arranged on the rotating shaft in a sealing mode and used for plugging the oil filling hole, and the plug is abutted against the spring in a pre-tightening mode.

Preferably, a preload piece is arranged on the surface of the end cover, which is abutted against the adjusting disc.

Preferably, the plug and the rotating shaft are fixedly connected through a threaded structure.

Preferably, the spacers A are arranged in pairs and arranged in an array of the axes of the shells at 180 degrees; the spacers B are arranged in pairs, and the rotating shaft axis array is arranged in an angle of 180 degrees.

The utility model has the advantages that:

1. the oil passing groove is arranged on the angle-adjustable adjusting disc, so that the purposes of controlling the damping angle and the damping time according to the weight requirement of the cover plate and the requirement of a client are realized;

2. the utility model has simple structure, easy forming, simple assembly and convenient adjustment;

3. the utility model discloses replace the performance of many money products with a product, practiced thrift manufacturing cost, practiced thrift the management cost after sale.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a perspective view of a damper with adjustable damping angle according to a preferred embodiment of the present invention;

fig. 2 and 3 are perspective exploded views of a damper with adjustable damping angle according to a preferred embodiment of the present invention;

fig. 4 is a sectional view of a damper with adjustable damping angle according to a preferred embodiment of the present invention;

fig. 5 is an oil passing schematic diagram of a damper with adjustable damping angle according to a preferred embodiment of the present invention;

fig. 6 is a detailed view of a damper rotating shaft with an adjustable damping angle according to a preferred embodiment of the present invention.

In the figure:

100-a housing; 110-lumen; 120-end; 121-a through hole; 130-spacer A; 131-a front cavity; 132-a rear cavity; 140-anti-rotation rib

200-a rotating shaft; 210-a round shaft section; 220-flat shaft section; 230-spacer B; 240-oil injection hole section; 250-channel E; 260-channel F; 270-oil hole passing section; 280-a positioning shaft;

300-adjusting disk; 310-a disc portion; 311-oil passing groove; 320-an extension; 330-incision; 340-threads; 350-positioning hole

400-end cap; 410-fixed groove; 420-concave hole; 430-shaft hole M

500-adjusting knob; 510-shaft hole N; 520-anti-slip groove; 530-projection

600-fastening a nut; 610-antiskid line

700-spring

800-blocking ball

900-plug; 910-a seal; 920-straight groove

1100-preload piece.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention clearer and more obvious, the following description of the present invention with reference to the accompanying drawings and embodiments is provided for further details. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Basically, all other embodiments obtained by a person skilled in the art without any inventive work belong to the scope of protection of the present invention.

It should be noted that: like reference numbers and letters refer to analogous items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to be referred must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases for those skilled in the art.

The following examples are given to illustrate the present invention.

As shown in fig. 1 to 6, the damper with adjustable damping angle of the present invention is characterized by comprising:

the outer shell 100 comprises an inner cavity 110, the lower end of the inner cavity 110 is open, the upper end of the inner cavity is provided with an end part 120, a through hole 121 is formed in the middle of the end part 120, a radial spacer A130 is arranged on the inner wall of the inner cavity 110, the upper part of the spacer A130 is fixedly connected with the end part 120, and the outer wall of the outer shell 100 is provided with a pair of rotation stopping ribs 140;

the rotating shaft 200 is provided with a flat shaft section 220, a round shaft section 210 and a positioning shaft 280 in sequence from top to bottom, and is rotatably arranged in the inner cavity 110, the round shaft section 210 is provided with a radial spacer B230, the spacer B230 extends to the inner wall of the inner cavity 110, the flat shaft section 220 penetrates through the through hole 121 and extends outwards, and the spacer A130 and the spacer B230 separate the inner cavity 110 into a front cavity 131 and a rear cavity 132;

the end cover 400 is fixedly arranged at the opening at the lower end of the inner cavity 110, and a shaft hole M430 is formed in the middle of the end cover;

the adjusting disc 300 comprises a disc portion 310 and an extending portion 320, the disc portion is rotatably and hermetically arranged on the end cover 400, the upper end face of the disc portion 310 abuts against the lower end faces of the spacer a130 and the spacer B230, the upper end face of the disc portion 310 is provided with an oil passing groove 311 and a positioning hole 350, the oil passing groove 311 is annularly arranged, the positioning hole 350 is matched with the positioning shaft 280, the extending portion 320 is penetrated to the outside through the shaft hole M430, the oil passing groove 311 comprises 2 sections, the 2 sections are annularly arranged around the axis of the rotating shaft 200, and the sectional areas of the sections are different;

the damping angle of the damper can be adjusted by setting the relative rotation angle of the adjusting disc 300 and the housing 100.

In this embodiment, the adjusting device further includes an adjusting knob 500 and a fastening nut 600, the adjusting knob 500 is fixedly disposed on the extending portion 320 and is matched with the end cap 400 through a stop structure to stop, and the fastening nut 600 is used for fixing the adjusting knob 500.

In this embodiment, the stopping structure includes a protrusion 530 and a concave hole 420, which are matched with each other, and are respectively disposed on the contact surface of the end cap 400 and the adjusting knob 500. The protrusion 530 is disposed on the adjusting knob 500, the concave hole 420 is disposed on the end cap 400, and the protrusion 530 and the concave hole 420 are disposed in 24 axial arrays, the arrays are disposed in a plurality of positions, so that the positioning is more firm and reliable, the number of the arrays can be set according to different adjusting accuracies, and 72 arrays can be disposed if the adjusting accuracy is 5 °.

In this embodiment, the extension part 320 is provided with a notch 330 and a thread 340, and a shaft hole N510 matched with the notch 330 is arranged in the middle of the adjusting knob 500; the fastening nut 600 is engaged with the thread 340 and fastens the adjusting knob 500, and the fastening direction is the direction in which the protrusion 530 and the concave hole 420 are engaged and pressed with each other.

In this embodiment, the liquid-saving device further includes a one-way valve, and the one-way valve is fixedly disposed on the rotating shaft 200, so that the liquid between two adjacent chambers flows in a one-way manner. The purpose of the check valve is to make the rotating shaft 200 easy in one rotation direction and damped in the opposite rotation direction, and the check valve is not needed, and in the case of no check valve, the covering range of the oil passing groove 311 can be covered to the whole rotation path of the rotating shaft 200, and the performance of the oil passing groove can be changed to that whether the rotating shaft rotates in the forward direction or in the reverse direction, and the damping speed depends on the current oil passing sectional area.

In this embodiment, the check valve includes a spring 700 and a ball stopper 800, a filler hole section 240, a filler hole section 270, a passage E250, and a passage F260 are disposed in the middle of the rotating shaft 200, the diameter of the filler hole section 240 is greater than that of the filler hole section 270, the passage E250 communicates the filler hole section 240 with the front cavity 131, and the passage F260 communicates the filler hole section 270 with the rear cavity 132; the ball stopper 800 is movably arranged at the oil filling hole section 240 under the action of the pretightening force of the spring 700 and moves between the positions of blocking and opening the opening of the oil passing hole section 270. This check valve mechanism reaction is sensitive quick, and the apron is just loose the hand and also can have the damping effect raising the small-angle back, and the conventional rotary damper uses the vane type check valve piece mechanism, and its structural style needs to have a corner stroke to make the check valve play, therefore its effect is that the apron is loose the hand and not have the damping effect after raising the small-angle, can cause very big noise.

In this embodiment, the oil filling device further includes a plug 900, and the plug 900 is fixedly arranged on the rotating shaft 200 in a sealing manner to plug the oil filling hole and is pre-tensioned and abutted against the spring 700. The plug 900 is provided with a sealing member 910 for sealing the oil hole.

In this embodiment, a preload member 1100 is disposed on a surface of the cap 400 against the adjustment plate 300. The preload piece 1100 can enable the adjusting disc 300 to effectively abut against the lower end faces of the separation piece A130 and the separation piece B230, so that the tightness of the front cavity 131 and the rear cavity 132 is guaranteed, and meanwhile, in the embodiment, the preload piece 1100 is an O-shaped ring and can achieve both a preload function and a sealing function.

In this embodiment, the plug 900 is fixedly connected to the rotating shaft 200 through a threaded structure. Still set up a straight line groove 920 on the stopper 900, the screwdriver of being convenient for carries out the dismouting.

In this embodiment, the spacers a130 are provided in a pair, and are arranged in an array of 180 ° around the axis of the housing 100; the spacers B230 are arranged in a pair and arranged in an array of 180 degrees with respect to the axis of the rotating shaft 200. The symmetrical arrangement can ensure that the stress of the whole mechanism is uniform and the reliability is improved.

In this embodiment, the outer circumferential surface of the adjusting knob 500 is provided with an anti-slip groove 520, and the outer circumferential surface of the fastening nut 600 is provided with anti-slip threads 610.

While the foregoing description shows and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (10)

1. A damper with adjustable damping angle, characterized by comprising:

the outer shell comprises an inner cavity, the lower end of the inner cavity is open, the upper end of the inner cavity is provided with an end part, a through hole is formed in the middle of the end part, a radial spacer A is arranged on the inner wall of the inner cavity, and the upper part of the spacer A is fixedly connected with the end part;

the rotating shaft comprises a round shaft section and a flat shaft section, the round shaft section is rotatably arranged in the inner cavity, the round shaft section is provided with a radial spacer B, the spacer B extends to the inner wall of the inner cavity, the flat shaft section penetrates through the through hole to extend outwards, and the spacer A and the spacer B separate the inner cavity into a front cavity and a rear cavity;

the end cover is fixedly arranged at an opening at the lower end of the inner cavity, and a shaft hole M is arranged in the middle of the end cover;

the adjusting disc comprises a disc part and an extension part, the disc part is arranged on the end cover in a rotating sealing mode, the upper end face of the disc part is simultaneously abutted against the lower end faces of the spacer A and the spacer B, an oil passing groove is formed in the upper end face of the disc part, and the extension part penetrates through the shaft hole M to the outer side;

and adjusting the damping angle of the damper by setting the relative rotation angle of the adjusting disc and the shell.

2. The damper with the adjustable damping angle as claimed in claim 1, further comprising an adjusting knob and a fastening nut, wherein the adjusting knob is fixedly disposed on the extension portion and is matched with the end cap through a stop structure to stop, and the fastening nut is used for fixing the adjusting knob.

3. The adjustable damping angle damper according to claim 2, wherein the stopping structure comprises a protrusion and a recess which are matched with each other and respectively arranged on the contact surface of the end cover and the adjusting knob.

4. The damper with the adjustable damping angle as claimed in claim 3, wherein the extension part is provided with a notch and a thread, and the middle of the adjusting knob is provided with a shaft hole N matched with the notch; the fastening nut is engaged with the screw thread and fastens the adjusting knob.

5. The adjustable damping angle damper according to claim 4, further comprising a one-way valve, wherein the one-way valve is fixedly arranged on the rotating shaft, and the one-way valve enables the liquid between two adjacent chambers to flow in one direction.

6. The damper with the adjustable damping angle as claimed in claim 5, wherein the one-way valve comprises a spring and a ball plug, a fuel filler hole section, a fuel passing hole section, a channel E and a channel F are arranged in the middle of the rotating shaft, the diameter of the fuel filler hole section is larger than that of the fuel passing hole section, the channel E is communicated with the fuel filler hole section and the front cavity, and the channel F is communicated with the fuel passing hole section and the rear cavity; the blocking ball is movably arranged at the position of the oil filling hole section between the position of blocking and the position of opening the oil passing hole section under the action of the pre-tightening force of the spring.

7. The adjustable damping angle damper according to claim 6, further comprising a plug, wherein the plug is fixedly arranged on the rotating shaft in a sealing manner to block the oil hole and abuts against the spring in a pre-tightening manner.

8. The adjustable damping angle damper according to claim 7, wherein a preload member is provided on a surface of the end cap against which the adjustment disk abuts.

9. The adjustable damping angle damper according to claim 8, wherein the plug is fixed to the shaft by a screw structure.

10. The adjustable damping angle damper according to any one of claims 1 to 9, wherein the spacers a are provided in a pair at 180 ° to the housing axial center array; the spacers B are arranged in pairs, and the rotating shaft axis array is arranged in an angle of 180 degrees.

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