CN211623047U

CN211623047U - Damper

Info

Publication number: CN211623047U
Application number: CN201921577200.8U
Authority: CN
Inventors: 谢岳荣; 梁恩健
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-10-02
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses a damper, which comprises an upper cover, a shaft core, a shaft sleeve, an oil guide component and an adjusting part, wherein the shaft sleeve is provided with a containing cavity and an adjusting cavity which are communicated with each other; the upper cover is sleeved on the shaft core to tightly press the shaft core in the cavity, and at least a first oil passing cavity and a second oil passing cavity which are communicated with each other are arranged in the cavity; the axle core includes end cover and axle body, the lateral wall of axle body is equipped with leads oily subassembly, axle body bottom is equipped with the oil groove, the regulating part covers on crossing the oil groove, so that adjust cross the oil mass of circulation between oil groove and the regulating part. Adopt the utility model discloses, can realize the regulation of axle core moment of torsion, and simple structure, it is with low costs.

Description

Damper

Technical Field

The utility model relates to a attenuator field especially relates to an adjustable moment of torsion's 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 damper is provided, 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 a attenuator, 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 a damper, which comprises an upper cover, a shaft core, a shaft sleeve, an oil guide assembly and an adjusting piece, wherein the shaft sleeve is provided with a cavity and an adjusting cavity which are communicated with each other; the upper cover is sleeved on the shaft core to tightly press the shaft core in the cavity, and at least a first oil passing cavity and a second oil passing cavity which are communicated with each other are arranged in the cavity;

the axle core includes end cover and axle body, the lateral wall of axle body is equipped with leads oily subassembly, axle body bottom is equipped with the oil groove, the regulating part covers on crossing the oil groove, so that adjust cross the oil mass of circulation between oil groove and the regulating part.

As an improvement of the scheme, a partition plate is arranged in the accommodating cavity, the partition plate divides the accommodating cavity into a first oil passing cavity and a second oil passing cavity, and the oil guide assembly is arranged in the first oil passing cavity and the second oil passing cavity and realizes forward and reverse rotation.

As an improvement of the scheme, the shaft sleeve is provided with an adjusting hole, the adjusting piece is provided with an adjusting groove, and the adjusting groove penetrates through the adjusting hole and the oil passing groove to form an oil passing cavity;

the adjusting cavity is internally provided with an internal thread, the adjusting piece is provided with an external thread, and the adjusting piece is in threaded connection with the adjusting cavity through the internal thread and the external thread so as to adjust the oil mass flowing in the oil containing cavity.

As the improvement of above-mentioned scheme, the regulating part is equipped with the seal groove, the seal groove is equipped with first sealing washer.

As the improvement of above-mentioned scheme, lead the oil subassembly including the support piece of locating the axle body with locate the leaf piece spare on the support piece, leaf piece spare is including crossing oily muscle and sealing the oil muscle, it is equipped with a plurality of oily bridges of crossing to cross oily muscle, cross oily muscle and be connected with sealing the oil muscle through crossing oily bridge, leave the hydraulic fluid port of leading between two adjacent oily bridges of crossing, cross oily crane span structure and locate on the support piece, the length of crossing oily bridge slightly is greater than support piece's width.

As an improvement of the scheme, the oil passing rib is provided with a plurality of convex blocks, an oil guide passage is reserved between every two adjacent convex blocks, and the oil guide passage is communicated with the oil guide port.

As an improvement of the above scheme, the top end face of the oil seal rib and the top end face of the projection are on the same circumference.

As an improvement of the scheme, the support piece is provided with a boss which is clamped on the oil guide port.

As an improvement of the above scheme, the shaft body is provided with a gradually changing surface, the gradually changing surface extends from the middle position of the surface of the shaft body between the adjacent oil guide assemblies to the direction of the oil passing rib, and the distance from the shaft surface to the shaft center is gradually reduced.

As an improvement of the scheme, a second sealing ring is arranged between the upper cover and the shaft core.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses an axle body bottom is equipped with the oil groove, the regulating part covers on crossing the oil groove, so that adjust cross the oil mass of circulation between oil groove and the regulating part. Specifically, the adjusting part is provided with an adjusting groove, an oil containing cavity is formed between the adjusting groove and the oil containing groove in a surrounding mode, the oil containing cavity can be adjusted through the adjusting part and the threaded connection of the adjusting cavity, and therefore the oil flowing through the oil containing cavity is adjusted, hydraulic resistance of damping oil to the shaft core is changed, and accordingly torque adjustment is achieved. And the cooperation of support piece and vane piece in leading the oil subassembly makes the axle core when clockwise or anticlockwise rotation, and the difference of the hydraulic resistance that damping oil produced to the axle core realizes the rotational speed difference of different rotation direction axle cores. Further, the utility model discloses still be equipped with the gradual change face on the axle piece, at axle core pivoted in-process, damping oil can make hydraulic resistance size take place the gradual change owing to the gradual change face, but the size of moment of torsion slowly changes, avoids the abrupt change of axle core rotational speed, avoids seat circle or apron to accelerate suddenly or slow down the translation rate promptly and brings unexpected danger for the user. And the structure is simple and the cost is low.

Furthermore, the utility model discloses still improving being connected between axle core and the leaf piece, specifically the leaf piece is including crossing oily muscle and sealing oily muscle, it is equipped with a plurality of oily bridges to cross oily muscle, leaves the hydraulic fluid port of leading between two adjacent oily bridges of crossing, it is connected with sealing oily muscle through crossing oily bridge to cross oily muscle, cross oily crane span structure and locate support piece on. The oil passing rib is provided with a plurality of convex blocks, an oil guide passage is reserved between every two adjacent convex blocks, and the oil guide passage is communicated with the oil guide port. The damping oil may flow from one side of the support to the other side of the support through the oil guide passage and the oil guide port. The top end face of the oil sealing rib and the top end face of the convex block are on the same circumference, so that the stability and the reliability of connection of the blade piece and the support piece in the rotating process are guaranteed, and the blade piece and the support piece are prevented from being separated. Preferably, support piece is equipped with the boss, the boss wears to locate on leading the hydraulic fluid port, further guarantees the steadiness and the reliability that the leaf piece is connected with support piece, and the impulsive force of damping oil makes both break away from when avoiding fast rotating, and its simple structure is with low costs.

Drawings

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

FIG. 2 is a top view of the bushing of FIG. 1;

FIG. 3 is a cross-sectional view of the bushing of FIG. 1 taken along the axial direction;

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 bottom view of the axle core after the mounting of the vane of FIG. 1;

fig. 9 is a front view of a damper of the present invention;

FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;

FIG. 11 is a cross-sectional view of the alternate state of FIG. 10;

FIG. 12 is a cross-sectional view taken along line B-B of the hub of FIG. 8 in a counterclockwise rotation;

fig. 13 is a cross-sectional view taken along line B-B of the mandrel 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. 1-13, the utility model discloses a damper, which comprises an upper cover 1, a shaft core 2, a shaft sleeve 5, an oil guiding component and an adjusting piece 6, wherein the shaft sleeve 5 is provided with a communicated containing cavity and an adjusting cavity 53, the shaft core 2 is arranged in the containing cavity, the adjusting piece 6 is arranged in the adjusting cavity 53, and the adjusting piece 6 is movably connected with the shaft sleeve 5; the upper cover 1 is sleeved on the shaft core 2 to tightly press the shaft core 2 in a cavity, and at least a first oil passing cavity 51 and a second oil passing cavity 52 which are communicated with each other are arranged in the cavity;

axle core 2 includes end cover 21 and axle body 22, the lateral wall of axle body 22 is equipped with leads oily subassembly, axle body 22 bottom is equipped with oil groove 23, regulating part 6 covers on oil groove 23, so that adjust the oil mass of crossing between oil groove 23 and the regulating part 6 circulation. The adjusting member 6 is an adjusting nut. The shaft body 22 is coaxial with the shaft sleeve 5. The oil passing groove 23 is formed by inwardly sinking the side wall of the shaft body 22.

Specifically, as shown in fig. 3, 4, 10, and 11, the shaft sleeve 5 is provided with an adjusting hole 55, the adjusting member 6 is provided with an adjusting groove 61, and the adjusting groove 61 passes through the adjusting hole 55 and the oil passing groove 23 to define an oil passing cavity 9. Be equipped with internal thread 56 in adjusting chamber 53, adjusting part 6 is equipped with external screw thread 62, adjusting part 6 passes through internal thread 56 and external screw thread 62 and adjusts chamber 53 threaded connection to realize adjusting the oil mass that circulates in the oily appearance chamber 9 of crossing. The adjusting part can be screwed in or out of the adjusting cavity through the internal and external threads, so that the size of the oil containing cavity is adjusted, the amount of oil entering the oil containing cavity is changed or increased or reduced, and the torque is adjusted. As shown in fig. 10, the adjusting member 6 is screwed into the innermost position of the adjusting chamber 53, and the area of the oil groove 23 blocked by the adjusting groove 61 is the largest, that is, the volume of the oil passing chamber 9 is the smallest, so that the damping oil can only pass through the oil passing chamber 9 by a small amount, and the generated hydraulic resistance is the largest. As shown in fig. 11, the adjusting member 6 is screwed outwards, the area of the adjusting groove 61 blocking the oil passing groove 23 gradually decreases, i.e. the volume of the oil passing chamber 9 gradually increases, and the amount of damping oil passing through the oil passing chamber 9 also gradually increases, and the generated hydraulic resistance also gradually decreases. Thus, a manual adjustment of the torque can be achieved by the adjustment element. The oil sumps 23 are preferably four.

The utility model discloses an axle body bottom is equipped with the oil groove, the regulating part covers on crossing the oil groove, so that adjust cross the oil mass of circulation between oil groove and the regulating part. Specifically, the adjusting part is provided with an adjusting groove, an oil containing cavity is formed between the adjusting groove and the oil containing groove in a surrounding mode, the oil containing cavity can be adjusted through the adjusting part and the threaded connection of the adjusting cavity, and therefore the oil flowing through the oil containing cavity is adjusted, hydraulic resistance of damping oil to the shaft core is changed, and accordingly torque adjustment is achieved. Preferably, as shown in fig. 10 and 11, the adjusting member 6 is provided with a sealing groove 63, and the sealing groove 63 is provided with the first sealing ring 8. The arrangement of the sealing ring prevents the damping oil from leaking.

As shown in fig. 2, a partition plate 54 is arranged in the cavity, the cavity is divided into a first oil passing cavity 51 and a second oil passing cavity 52 by the partition plate 54, and the oil guide assembly is arranged in the first oil passing cavity 51 and the second oil passing cavity 52 and realizes forward and reverse rotation. The damping oil flows back and forth between the first oil passing cavity and the second oil passing cavity, and certain hydraulic resistance is exerted on the oil guide assembly. Preferably, the volumes of the first oil passing cavity 51 and the second oil passing cavity 52 are equal, two sets of oil guide assemblies are arranged on two sides of the shaft body in a centrosymmetric manner, and the two sets of oil guide assemblies are respectively arranged in the first oil passing cavity 51 and the second oil passing cavity 52.

As shown in fig. 6, 7 and 8, the oil guide assembly includes a support member 3 provided on the shaft body 22 and a vane member 4 provided on the support member 3. The blade piece 4 is including crossing oil muscle 41 and sealing oil muscle 42, it is equipped with a plurality of oil bridges 43 to cross oil muscle 41, cross oil muscle 41 and be connected with sealing oil muscle 42 through crossing oil bridge 43, leave between two adjacent oil bridges 43 and lead the hydraulic fluid port 44, cross oil bridge 43 and erect on support piece 3, the length of crossing oil bridge 43 slightly is greater than support piece 3's width. Because the oil passing bridge is arranged on the supporting piece, the oil passing rib and the oil sealing rib are respectively arranged on two sides of the supporting piece. The oil passing bridge is formed by extending from the oil passing rib to one side of the oil sealing rib. The oil bridge is preferably two. The oil passing rib is provided with a plurality of convex blocks, an oil guide passage is reserved between every two adjacent convex blocks, and the oil guide passage is communicated with the oil guide port. The lug is formed by protruding upwards from the oil passing rib. The bumps are preferably three.

Preferably, the top end face of the oil seal rib 42 and the top end face of the projection 45 are on the same circumference, that is, the top end face of the oil seal rib 42 and the top end face of the projection 45 are both arc faces, and are matched with the inner side wall of the oil passing cavity to ensure the stability and reliability of connection between the vane piece and the support piece, so that the vane piece and the support piece are prevented from being separated from each other due to the impact force of damping oil when the shaft core rotates, and the oil seal structure is simple in structure and low in cost.

Preferably, as shown in fig. 6, the support 3 is provided with a boss 31, and the boss 31 is clamped on the oil guide opening 44. The block piece 4 is clamped on the boss 31, so that the stability and reliability of connection between the block piece and the supporting piece are further guaranteed, the impact force of damping oil is prevented from separating the block piece and the supporting piece when the shaft core rotates, and the shaft core is simple in structure and low in cost.

Further, as shown in fig. 7, the shaft body 22 is further provided with a gradually changing surface 24, the gradually changing surface 24 extends from the middle position of the surface of the shaft body 22 between the adjacent oil guiding components to the direction of the oil passing rib 41, and the distance from the shaft surface to the shaft center gradually decreases. Because the setting of gradual change face makes damping oil pass through the flow between division board and the axle body and can produce the condition that increases gradually or reduce, and the size of moment of torsion can slowly change, avoids the sudden change of axle core rotational speed, avoids seat circle or apron to accelerate suddenly or slow down the translation speed and bring unexpected danger for the user promptly.

Preferably, as shown in fig. 1, 10 and 11, a first sealing ring 7 is arranged between the upper cover 1 and the shaft core 2. The sealing ring can prevent damping oil from leaking.

Preferably, as shown in fig. 5, the bottom of the adjusting piece 6 is further provided with a hexagon socket 64, and a hexagon socket wrench can be inserted into the hexagon socket to rotate the adjusting piece so as to realize the torque adjustment of the shaft core.

Preferably, the support member 3 is further provided with a step block on a side thereof adjacent to the gradual change surface 24, which may be used to prevent the block member 4 from being reversely fitted.

The working principle of the damper of the utility model is that: as shown in fig. 12, when the shaft core 2 rotates counterclockwise, the vane member 4 swings clockwise by the resistance of the damping oil. At this time, the oil guide passage formed between the vane member 4 and the support member 3 is closed by the support member 3 and the oil seal rib 42 being in close contact therewith. In the first half of the rotation, a clearance exists between the shaft body 22 and the partition plate 53 due to the presence of the tapered surface 24 on the shaft body 22, thereby forming an oil passing passage. The distance between the tapered surface 24 and the axis of the shaft body 22 gradually increases, and the hydraulic resistance gradually increases. Damping oil also flows in the oil passing chamber 9 formed between the regulating groove 61 and the oil passing groove 23. In the second half of the rotation, a gap between the shaft body 22 and the partition plate 54 is zero, the oil passage is closed, the damping oil can only flow from the oil passage cavity 9, and the hydraulic resistance is increased. In the process, the damping force of the shaft core is changed from small to big, and the rotation process of the shaft core in which the speed is first high and then the speed is low is realized. This process is suitable for seat or cover closure.

As shown in fig. 13, when the shaft core 2 rotates clockwise, the vane member 4 swings counterclockwise by the resistance of the damping oil. At this time, since the oil passing rib 41 is tightly attached to the support 3, the damping oil sequentially flows through the oil guide passage 46, the oil guide port 44, and the oil guide passage formed by the gap between the oil sealing rib 42 and the support 3. Damping oil also flows in the oil passing chamber 9 formed between the adjusting groove 61 and the oil passing groove 23. This hydraulic resistance, i.e., the damping force, is small compared to when the shaft core is rotated counterclockwise. 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 a 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. A damper is characterized by comprising an upper cover, a shaft core, a shaft sleeve, an oil guide assembly and an adjusting piece, wherein the shaft sleeve is provided with a containing cavity and an adjusting cavity which are communicated; the upper cover is sleeved on the shaft core to tightly press the shaft core in the cavity, and at least a first oil passing cavity and a second oil passing cavity which are communicated with each other are arranged in the cavity;

2. The damper as claimed in claim 1, wherein a partition plate is arranged in the cavity, the partition plate divides the cavity into a first oil passing cavity and a second oil passing cavity, and the oil guide assembly is arranged in the first oil passing cavity and the second oil passing cavity and realizes forward and reverse rotation.

3. The damper according to claim 1, wherein the shaft sleeve is provided with an adjusting hole, the adjusting piece is provided with an adjusting groove, and the adjusting groove penetrates through the adjusting hole and the oil passing groove to form an oil passing cavity;

4. The damper of claim 1, wherein the adjuster is provided with a seal groove having a first seal ring.

5. The damper as claimed in claim 1, wherein the oil guiding assembly includes a supporting member disposed on the shaft body and a vane member disposed on the supporting member, the vane member includes an oil passing rib and an oil sealing rib, the oil passing rib is provided with a plurality of oil passing bridges, the oil passing rib is connected to the oil sealing rib through the oil passing bridges, an oil guiding opening is left between two adjacent oil passing bridges, the oil passing bridge is disposed on the supporting member, and the length of the oil passing bridge is slightly greater than the width of the supporting member.

6. The damper as claimed in claim 5, wherein the oil passing rib is provided with a plurality of protruding blocks, an oil guide passage is left between two adjacent protruding blocks, and the oil guide passage is communicated with the oil guide port.

7. The damper of claim 6, wherein the tip end surface of the oil seal rib and the tip end surface of the projection are on the same circumference.

8. The damper as claimed in claim 6, wherein the support member is provided with a boss, and the boss is clamped on the oil guide port.

9. The damper according to claim 1, wherein the shaft body is provided with a gradually changing surface which extends from a middle position of the surface of the shaft body between the adjacent oil guide members in the direction of the oil passing rib and whose distance from the shaft surface to the shaft center is gradually reduced.

10. The damper according to any one of claims 1 to 9, wherein a second seal ring is provided between the upper cover and the shaft core.