CN211704420U

CN211704420U - Adjustable damper

Info

Publication number: CN211704420U
Application number: CN201921076513.5U
Authority: CN
Inventors: 谢岳荣; 伍惠明
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2019-07-10
Filing date: 2019-07-10
Publication date: 2020-10-20
Anticipated expiration: 2029-07-10

Abstract

The utility model discloses an adjustable damper, which comprises an upper cover, a shaft core, a shaft sleeve, an oil guide assembly and an adjusting nut, wherein the shaft sleeve is provided with a first containing cavity and a second containing cavity; the shaft core comprises an end cover and a shaft piece, the bottom of the shaft piece is provided with an oil passing hole, and the adjusting nut is used for adjusting the size of the oil passing hole; the oil guide assembly comprises a wing piece and a blade block; the oil seal structure is characterized in that two symmetrically-arranged partition plates are arranged in the first accommodating cavity, the shaft piece and the partition plates divide the first accommodating cavity into two oil passing cavities with equal volumes, an oil seal surface and an oil passing surface are arranged on the inner side wall of each oil passing cavity, the radius of the circle where the oil passing surface is located is larger than that of the circle where the oil seal surface is located, and the oil seal surface and the oil passing surface of each oil passing cavity are symmetrically arranged with the center of the shaft sleeve. Adopt the utility model discloses, can realize the regulation of axle core moment of torsion, and simple structure, it is with low costs.

Description

Adjustable damper

Technical Field

The utility model relates to a attenuator field especially relates to an adjustable attenuator.

Background

A traditional closestool comprises a closestool body, wherein a seat ring and a cover plate are arranged on the closestool body. In the use, seat circle and apron need often be mentioned or put down, because the action of gravity, can collide with the closestool body when seat circle or apron put down, produce huge sound, make the people feel uncomfortable. Therefore, the damper is developed in the market later, so that the seat ring or the cover plate can slowly fall down when put down, and the collision strength between the seat ring or the cover plate and the body is reduced.

The existing hydraulic damper is basically formed by sealing and assembling a shaft sleeve, a shaft core, a one-way oil passing blade and the like, damping oil in the shaft sleeve flows through the rotation of the shaft core, the blade opens an oil passing channel to enable the damping oil to flow rapidly in one direction, the damping oil has no hydraulic resistance to the shaft core, and the shaft core can rotate rapidly; when the shaft core rotates reversely, the vanes close the oil passing channel to enable the damping oil to flow slowly, and the damping oil generates hydraulic resistance to act on the shaft core to enable the shaft core to rotate slowly. However, in the existing damper, the connection between the blade and the shaft core is not stable, so that the blade and the shaft core are easy to separate under the impact of damping oil, and even the rotation of the shaft core is not smooth. In the process that the shaft core rotates in the same direction, the hydraulic resistance of the damping oil to the shaft core is equal, the rotating speed of the shaft core during damping rotation cannot be adjusted, namely, torque cannot be adjusted, and the use requirement and use experience of modern people on the closestool cannot be met. For example, when closing the toilet lid, the lid is generally rotated through an angle of 90 degrees. When closing the apron, but the apron fast travel first 45 degrees angles, then need slow moving when rotatory second 45 degrees angles, because the apron is equivalent to perpendicular downward movement when rotatory second 45 degrees angles, at this moment if still fast travel, the apron will collide with the closestool body by force, produce huge sound. However, if the cover plate is moved slowly all the time, time is delayed, and the use experience of a user is affected. Therefore, a damper capable of adjusting torque is required. In addition, the existing damper is complex in structure and high in cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a provide an adjustable damper, can realize the regulation of axle core moment of torsion, and simple structure, it is with low costs.

The utility model aims to solve the technical problem still in, provide an adjustable damper, guarantee the connection steadiness and the reliability of axle core and leaf piece, and simple structure, it is with low costs.

In order to solve the technical problem, the utility model provides an adjustable damper, which comprises an upper cover, a shaft core, a shaft sleeve, an oil guide assembly and an adjusting nut, wherein the shaft sleeve is provided with a first containing cavity and a second containing cavity, the shaft core is arranged in the first containing cavity, the upper cover is sleeved on the shaft core and is used for pressing the shaft core in the first containing cavity, the adjusting nut is arranged in the second containing cavity, and the adjusting nut is movably connected with the shaft sleeve;

the shaft core comprises an end cover and a shaft piece, the end cover is sleeved on the shaft piece, the bottom of the shaft piece is provided with an oil passing hole through which damping oil can flow, and the adjusting nut is used for adjusting the size of the oil passing hole; the oil guide assembly comprises wing pieces and blade blocks, the wing pieces are symmetrically arranged on two sides of the shaft piece by the center of the shaft piece, and the blade blocks are matched with the wing pieces;

the oil seal structure is characterized in that two symmetrically-arranged partition plates are arranged in the first accommodating cavity, the shaft piece and the partition plates divide the first accommodating cavity into two oil passing cavities with equal volumes, an oil seal surface and an oil passing surface connected with the oil seal surface are arranged on the inner side wall of each oil passing cavity, the radius of a circle where the oil passing surface is located is larger than that of the circle where the oil seal surface is located, and the oil seal surface and the oil passing surface of each oil passing cavity are symmetrically arranged with the center of the shaft sleeve.

As an improvement of the above scheme, the width of the oil passing surface is gradually reduced in the axial direction of the shaft sleeve.

As an improvement of the scheme, the wing piece comprises a groove, and a high convex column and a low convex column which form the groove, wherein the high convex column is higher than the low convex column.

As an improvement of the scheme, both ends of the blade block are provided with a high boss, a middle boss and a low boss, and the middle boss and the low boss are respectively arranged on both sides of the high boss;

the high boss is arranged in the groove, the end face of the middle boss is connected with the end face of the low convex column, and the end face of the low boss is connected with the end face of the high convex column.

As an improvement of the scheme, the blade block is provided with an oil passing table, two ends of the oil passing table are respectively connected with the high convex columns, and the oil passing table can be connected with the high convex columns and cannot be connected with the low convex columns.

As an improvement of the scheme, the number of the oil passing holes is four, the two sides of the wing piece are respectively provided with the oil passing hole, the shaft piece is provided with an oil guide cavity, and the oil passing holes are communicated through the oil guide cavity.

As an improvement of the scheme, the shaft sleeve is provided with an adjusting hole, the adjusting nut is provided with an adjusting column, and the adjusting column penetrates through the adjusting hole to be arranged in the oil guide cavity so as to adjust the size of the oil passing hole.

As an improvement of the scheme, the second accommodating cavity is provided with an internal thread, the adjusting nut is provided with an external thread, and the internal thread is connected with the external thread.

As an improvement of the scheme, a first sealing ring is arranged between the upper cover and the shaft core, the adjusting nut is provided with a sealing groove, and the sealing groove is provided with a second sealing ring.

As an improvement of the scheme, the bottom of the adjusting nut is provided with a hexagon socket.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses a set up the oil seal face that is connected and cross the oil level on the lateral wall of crossing the oil chamber, the axle core drives the vane piece when rotatory and passes through the oil level or by crossing the oil level and pass through the oil seal face, damping oil can not follow the circulation between vane piece and the oil seal face, nevertheless can follow the vane piece and pass through the circulation between the oil level to damping oil has taken place to the produced hydraulic resistance size of axle core when the axle core is rotatory to same direction and has changed, realizes the regulation of moment of torsion. Preferably, the width of the oil passing surface is gradually reduced in the axial direction of the shaft sleeve, so that the flow of damping oil passing through the space between the vane blocks and the oil passing surface is gradually increased or reduced, the torque can be slowly changed, and the sudden change of the rotating speed of the shaft core is avoided, namely the condition that the seat ring or the cover plate suddenly speeds up or slows down the moving speed to bring unexpected danger to a user is avoided. In addition, the bottom of the shaft core is also provided with an oil passing hole, and damping oil can flow back and forth from the oil passing hole. The adjusting nut is adopted to adjust the size of the oil passing hole, so that the oil quantity of the damping oil flowing through the oil passing hole is adjusted, the size of hydraulic resistance is controlled, and the torque is adjusted. Moreover, the utility model has the advantages of simple integral structure and low cost.

The utility model discloses still improving being connected between axle core and the leaf piece, specifically being in the recess of wing spare is located to the high boss of leaf piece, the well boss terminal surface of leaf piece is connected with the low projection terminal surface of wing spare, and the low boss terminal surface of leaf piece is connected with the high projection terminal surface of wing spare. No matter the axle core clockwise turning or anticlockwise rotation, can guarantee the steadiness and the reliability that the blade is connected with the wing spare through the boss of both sides and the cooperation of projection terminal surface, avoid quick rotation or damping oil's impulsive force and make both break away from. And the structure is simple and the cost is low.

Drawings

Fig. 1 is an exploded view of an adjustable damper of the present invention;

FIG. 2 is a schematic structural view of the bushing of FIG. 1;

FIG. 3 is a cross-sectional view of the bushing of FIG. 1;

FIG. 4 is a schematic structural view of the adjusting nut of FIG. 1;

FIG. 5 is a schematic view of the bottom of the adjustment nut of FIG. 4;

FIG. 6 is a schematic structural view of the mandrel of FIG. 1;

FIG. 7 is a schematic structural view of the leaf block of FIG. 1;

fig. 8 is a front view of an adjustable damper of the present invention;

FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8;

FIG. 10 is a cross-sectional view taken along line B-B of the hub of FIG. 8 in a counterclockwise rotation;

fig. 11 is a cross-sectional view taken along line B-B of the shaft core of fig. 8 in a clockwise rotation.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1-11, the utility model discloses an adjustable damper, including upper cover 1, axle core 2, axle sleeve 4, lead oily subassembly and adjusting nut 5, axle sleeve 4 is equipped with first appearance chamber 41 and second and holds chamber 42, axle core 2 is located

first appearance intracavity

41, 1 covers of upper cover are located on the axle core 2 in order to be used for with axle core 2 compresses tightly in first appearance intracavity 41, adjusting nut 5 is located the second and is held the chamber 42, adjusting nut 5 and axle sleeve 4 swing joint.

The shaft core 2 comprises an end cover 21 and a shaft member 22, the end cover 21 is sleeved on the shaft member 22, an oil passing hole 221 allowing damping oil to flow is formed in the bottom of the shaft member 22, and the adjusting nut 5 is used for adjusting the size of the oil passing hole 221. The oil guide assembly comprises wing pieces 23 symmetrically arranged on two sides of the shaft piece 22 with the center of the shaft piece 22 and blades 3 matched with the wing pieces 23.

Two partition plates 411 which are symmetrically arranged are arranged in the first accommodating cavity 41, the shaft member 22 and the partition plates 411 divide the first accommodating cavity 41 into two oil passing cavities 412 with equal volumes, an oil sealing surface 414 and an oil passing surface 413 connected with the oil sealing surface 414 are arranged on the inner side wall of each oil passing cavity 412, the radius of a circle where the oil passing surface 413 is located is larger than that of the circle where the oil sealing surface 414 is located, and the two oil sealing surfaces 414 and the oil passing surface 413 of each oil passing cavity 412 are symmetrically arranged with the center of a shaft sleeve.

Preferably, said shaft element 22 is coaxial with the bushing 4.

Preferably, the back surface of the vane block 3 is a circular arc surface, so that the back surface of the vane block 3 is matched with the inner side wall of the oil passing cavity 412.

The utility model discloses a set up the oil seal face that is connected and cross the oil level on the lateral wall of crossing the oil chamber, the axle core drives the vane piece when rotatory and passes through the oil level or by crossing the oil level and pass through the oil seal face, damping oil can not follow the circulation between vane piece and the oil seal face, nevertheless can follow the vane piece and pass through the circulation between the oil level to damping oil has taken place to the produced hydraulic resistance size of axle core when the axle core is rotatory to same direction and has changed, realizes the regulation of moment of torsion.

Preferably, as shown in fig. 2-3, the width of the oil passing surface 413 is gradually reduced in the axial direction of the shaft sleeve 4, so that the flow rate of the damping oil passing between the vane 3 and the oil passing surface 413 is gradually increased or decreased, the torque can be slowly changed, and the sudden change of the rotation speed of the shaft core, namely the sudden increase or decrease of the moving speed of the seat ring or the cover plate, which brings unexpected danger to the user, can be avoided.

In addition, the bottom of the shaft core 2 is also provided with an oil passing hole 221, and damping oil can flow back and forth from the oil passing hole. The adjusting nut is adopted to adjust the size of the oil passing hole, so that the oil quantity of the damping oil flowing through the oil passing hole is adjusted, the size of hydraulic resistance is controlled, and the torque is adjusted. Moreover, the utility model has the advantages of simple integral structure and low cost.

Specifically, as shown in fig. 6, the number of the oil passing holes 221 is four, two oil passing holes 221 are respectively disposed on two sides of the wing member 23, the shaft member 22 is provided with an oil guide cavity 222, and the oil passing holes 221 are communicated with each other through the oil guide cavity 222. Damping oil can flow into the oil guide cavity from one oil passing hole and then flow out of the oil guide cavity from the other oil passing hole. As shown in fig. 3, 4 and 8, the sleeve 4 is provided with an adjusting hole 43, the adjusting nut 5 is provided with an adjusting post 51, and the adjusting post 51 is arranged in the oil guide cavity 222 through the adjusting hole 43 to adjust the size of the oil passing hole 221. The second cavity 42 is provided with an internal thread 421, the adjusting nut 5 is provided with an external thread 53, and the internal thread 421 is connected with the external thread 53. The adjusting nut 5 is connected with the shaft sleeve 4 through threads, and the adjusting nut can move back and forth along the axial direction of the shaft sleeve through the threads, so that the adjusting column covers the oil passing hole. The area of the oil passing hole covered by the control adjusting column is achieved by controlling the depth of the adjusting column screwed into the oil guide cavity, so that the oil passing area of the oil passing hole is changed, the oil quantity passing through the oil passing hole is controlled, the hydraulic resistance can be controlled, and the torque is adjustable.

Preferably, the adjusting column 51 is a cylinder body matched with the oil guide cavity 222.

Preferably, as shown in fig. 5, the bottom of the adjusting nut 5 is provided with a hexagon socket 54, and the adjusting nut can be rotated by inserting a hexagon socket wrench into the hexagon socket to realize the torque adjustment of the shaft core.

Preferably, as shown in fig. 8, a first sealing ring 6 is arranged between the upper cover 1 and the shaft core 2, the adjusting nut 5 is provided with a sealing groove 52, and the sealing groove 52 is provided with a second sealing ring 7. The sealing ring can prevent damping oil from leaking.

Further, the utility model discloses still improve being connected between axle core 2 and the leaf piece 3. As shown in fig. 6, the wing 23 includes a groove 231, and a high protrusion 233 and a low protrusion 232 forming the groove 231, wherein the high protrusion 233 is higher than the low protrusion 232. As shown in fig. 7, both ends of the vane block 3 are provided with a high boss 31, a middle boss 32 and a low boss 33, and the middle boss 32 and the low boss 33 are respectively provided at both sides of the high boss 31. As shown in fig. 10-11, the high bosses 31 are disposed in the grooves 231, the end surfaces of the middle bosses 32 are connected to the end surfaces of the low studs 232, and the end surfaces of the low bosses 33 are connected to the end surfaces of the high studs 233. Preferably, as shown in fig. 7 and 10-11, the vane block 3 is provided with an oil passing table 34, two ends of the oil passing table 34 are respectively connected with the high bosses 31, and the oil passing table 34 can be connected with the high convex columns 233 and cannot be connected with the low convex columns 33. No matter the axle core clockwise turning or anticlockwise rotation, can guarantee the steadiness and the reliability that the blade is connected with the wing spare through the boss of both sides and the cooperation of projection terminal surface, avoid quick rotation or damping oil's impulsive force and make both break away from. And the structure is simple and the cost is low.

Preferably, the bottom surface of the groove 231 and the end surfaces of the high boss 233 and the low boss 232 are both arc surfaces, and the end surfaces of the high boss 31, the middle boss 32 and the low boss 33 are both arc surfaces, so that the high boss and the groove, the middle boss and the low boss, and the low boss and the high boss are matched.

The utility model discloses an adjustable damper's theory of operation is: as shown in fig. 10, when the hub 2 rotates counterclockwise, the vane member 3 swings clockwise. At this time, the oil guiding passage formed between the vane block 3 and the wing member 23 is closed by the connection between the oil passing platform 34 and the high protruding column 233, and the oil passing passage is formed between the vane block 3 and the oil passing surface 413. At this time, the damping oil flows in the oil passing passage and the oil passing hole 221 to generate hydraulic resistance to the shaft core 2. Since the width of the oil passing surface 413 is gradually reduced in the axial direction of the shaft sleeve 4, the oil passing channel is changed from large to small along with the rotation of the shaft core 2, and finally the oil passing channel is closed, and at the moment, the damping oil can only flow from the oil passing hole 221 at the bottom of the shaft core 2. In the process, the damping force of the shaft core 2 is increased from small to large, and the rotation process of the shaft core 2 in which the speed is increased first and then the speed is reduced is realized. This process is suitable for seat or cover closure.

As shown in fig. 11, when the shaft core 2 rotates clockwise, the vane block 3 swings counterclockwise. At this time, the damping oil flows through the oil passing hole 221 and the oil guide passage formed between the vane 3 and the vane member 23, and the damping force of the rotation of the shaft core 2 is small. When the shaft core 2 rotates to form an oil passing channel between the vane block 3 and the oil passing surface 413, the damping oil also flows in the oil passing channel, and the oil passing channel is gradually increased along with the rotation of the shaft core 2, and the damping force of the shaft core 2 is gradually reduced in the process. This process is suitable for seat or cover opening.

Implement the utility model discloses, following beneficial effect has:

To sum up, the utility model aims to solve the technical problem that an adjustable damper is provided, can realize the regulation of axle core moment of torsion, guarantees the connection steadiness and the reliability of axle core and leaf piece, and simple structure, and is with low costs.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. An adjustable damper is characterized by comprising an upper cover, a shaft core, a shaft sleeve, an oil guide assembly and an adjusting nut, wherein the shaft sleeve is provided with a first containing cavity and a second containing cavity;

2. The adjustable damper of claim 1, wherein the oil level is tapered in width in the axial direction of the sleeve.

3. The adjustable damper of claim 1, wherein said wing member includes a recess and a high post and a low post forming said recess, said high post being higher than said low post.

4. The adjustable damper of claim 3, wherein the two ends of the vane block are provided with a high boss, a middle boss and a low boss, and the middle boss and the low boss are respectively arranged on two sides of the high boss;

5. The adjustable damper of claim 4, wherein the vane block is provided with an oil passing table, both ends of the oil passing table are respectively connected with the high bosses, and the oil passing table can be connected with the high bosses and can not be connected with the low bosses.

6. The adjustable damper of claim 1, wherein the number of the oil passing holes is four, one oil passing hole is provided on each of both sides of the wing member, the shaft member is provided with an oil guide chamber, and the oil passing holes are communicated with each other through the oil guide chamber.

7. The adjustable damper of claim 1, wherein the bushing has an adjustment hole, and the adjustment nut has an adjustment post, the adjustment post passing through the adjustment hole and being disposed in the oil guide chamber to adjust the size of the oil passing hole.

8. The adjustable damper of claim 1, wherein said second cavity is internally threaded and said adjusting nut is externally threaded, said internal threads being coupled to said external threads.

9. The adjustable damper of claim 1, wherein a first seal ring is disposed between the upper cover and the shaft core, the adjusting nut is provided with a seal groove, and the seal groove is provided with a second seal ring.

10. The adjustable damper of any one of claims 1-9, wherein the bottom of the adjustment nut is provided with a hexagonal socket.