Liftable clothes hanger

Abstract

The application discloses a liftable clothes hanger, which comprises a box body, a rotating box, a booster, a supporting rod, a clothes hanging rod and a pull rod. The box body is provided with a positioning guide groove, and the tail of the positioning guide groove is provided with a positioning surface; the rotating box is provided with a positioning auxiliary groove, and the outside of the rotating box is provided with a cam structure; the box body is provided with a positioning cam device; and a positioning pin is fixedly installed on the piston rod of the booster. When the clothes hanging rod is lowered to a positioning point, the positioning mechanism can prevent the clothes hanging rod from automatically rising back in an empty load state. The force borne by the booster is tensile, and the piston rod of the booster is stretched outward when subjected to external tension, thereby generating reverse tension. The torque of the booster acting on the rotating box does not change in direction in the whole lifting process of the clothes hanging rod, and is opposite to the direction of the gravity torque of clothes. The tension of the booster acting on the rotating box gradually increases with the lowering of the clothes hanging rod, thereby providing large buffering force and back lifting assistance. The clothes hanger runs stably and has large bearing capacity.

Description

TECHNICAL FIELD

[0001] The present application relates to a clothes storage hardware product used in a wardrobe, in particular, a hanging clothes device with lifting function. BACKGROUND

[0002] The main body of the hanging clothes device with lifting function (hereinafter referred to as the hanging clothes device) is composed of two box bodies, two rotating boxes, two boosters, two support rods, a clothes hanging rod and a pull rod. The pull rod is installed in the middle of the clothes hanging rod, the two ends of the clothes hanging rod are fixedly connected to one end of the two support rods through connecting pieces, the other end of the two support rods is fixedly connected to the rotating boxes, the rotating boxes are installed in the box bodies through rotating shafts, and the hanging clothes device is installed on the two side panels of the wardrobe through the two box bodies.

[0003] The clothes hanging rod of the hanging clothes device can be lifted, which is convenient for hanging and taking clothes. In normal state, the clothes hanging rod is at a high position, when it is necessary to hang and take clothes, the pull rod is pulled down, the support rods drive the rotating boxes to rotate by 90 degrees, the clothes hanging rod is lowered to a low position, after the clothes are hung and taken, the pull rod is pushed up, and the clothes hanging rod is lifted to the high position. In order to reduce the impact force when the clothes are lowered and the pushing force when the clothes are lifted, the box body of the hanging clothes device is provided with a booster, the piston rod end of the booster is installed on the rotating box through a rotating shaft, the other end is installed on the box body through a rotating shaft, the booster generates a torque acting on the rotating box, which plays a role in lowering buffer and lifting assistance.

[0004] The existing hanging clothes device uses compressed gas spring or compressed spring oil cylinder as the booster. In normal state, the clothes hanging rod of the hanging clothes device is at the highest position, at this time, the compression stroke of the booster is the smallest, the force arm acting on the rotating box is the largest, and the torque direction of the booster is opposite to the torque direction of the weight of the clothes; the pull rod is pulled down, as the clothes hanging rod is lowered, the compression stroke of the booster gradually increases, the force arm gradually decreases and tends to be zero; when the clothes hanging rod is lowered to the lowest position, in order to ensure that the clothes hanging rod can hover in the idle state and will not automatically lift to hang and take clothes, the torque of the booster changes from zero to the opposite direction, that is, the torque direction of the booster is the same as the torque direction of the weight of the clothes, which suppresses the rotating disc so that the clothes hanging rod will not automatically lift.

[0005] The structure of the existing hanging clothes device can cause the following adverse effects: in normal state, the clothes hanging rod of the hanging clothes device is at the highest position, at this time, the weight line of the clothes passes through the rotating center of the rotating box, and the torque of the weight of the clothes is zero, but at this time, the force arm of the booster is the largest, when the pull rod is pulled down to hang and take clothes, the starting pulling force is too heavy; as the clothes hanging rod is lowered, the torque of the weight of the clothes becomes larger and larger, but the force arm of the booster gradually decreases and tends to be zero, which cannot effectively play the role of buffer and lifting assistance; when the clothes hanging rod is lowered to the lowest position, the torque of the weight of the clothes is the largest, but the torque direction of the booster is the same as that of the weight of the clothes, the booster not only cannot play the role of buffer, but also exacerbates the speed and impact of the weight of the clothes, especially when the weight of the clothes is heavy, which causes the hanging clothes device to shake seriously, the bearing force is poor, and the hanging clothes device is easy to be damaged. SUMMARY

[0006] To solve the problems of the prior art, the present application provides a liftable clothes hanger to solve the problems of too large starting tension when the clothes hanger rod is lowered, poor buffering effect during the lowering of the clothes hanger rod, poor assisting effect during the lifting of the clothes hanger rod, and the booster not only failing to buffer but also increasing the speed and impact of the clothes when the clothes hanger rod is lowered to the lowest position, especially when the clothes are heavy, which causes the clothes hanger to shake seriously and the bearing capacity to be poor, and the clothes hanger is easily damaged.

[0007] The technical solution adopted by the present application to solve the technical problems is: a liftable clothes hanger, comprising a box body, a rotating box, a booster, a supporting rod, a clothes hanger rod and a pull rod.

[0008] The box body is provided with a positioning guide groove and a damper mounting groove, the tail of the positioning guide groove is provided with a positioning face, and the damper mounting groove of the box body is mounted with a damper.

[0009] The rotating box is provided with a positioning auxiliary groove, an external cam structure and two side faces provided with bosses. The rotating box is installed in the box body through a rotating shaft and can rotate. The bosses of the two side faces of the rotating box are inserted into the damper mounting groove of the box body, the bosses are matched with the damper mounted on the damper mounting groove of the box body, and the damper plays a buffering role.

[0010] The booster comprises a piston rod, a cylinder body, a compression spring, a piston, a flow limiting check ring and a cylinder cover. The piston rod extends from the front end of the cylinder body, passes through the compression spring, the piston and the flow limiting check ring, the compression spring is pre-pressed, and the piston rod tail end is locked with a washer and a nut; the cylinder body is filled with oil; the tail end of the cylinder body is mounted with the cylinder cover; the openings at both ends of the cylinder body are mounted with sealing members to prevent oil leakage. The booster is in tension, and when the piston rod of the booster is subjected to external tension, it is stretched outward, the compression spring is compressed to generate a reverse tension on the piston rod.

[0011] The stretching process of the booster, i.e. the compression process of the compression spring, is the process of the clothes hanging rod descending; on the contrary, the retraction process of the booster, i.e. the reset process of the compression spring, is the process of the clothes hanging rod ascending. Because the reset speed of the spring is relatively fast, the reset speed should be reduced to ensure the safety of the user. The piston of the booster is provided with a through hole, and a flow limiting groove is arranged on the through hole. The sectional area of the flow limiting groove is smaller than that of the through hole. A flow limiting stop ring is matched with the piston to form a fluid passage with variable sectional area. The oil flows from one side of the piston to the other side through the fluid passage, and the oil viscosity forms a damping buffer effect. When the clothes hanging rod descends, the booster is stretched, the compression spring is compressed, the oil flows from one side of the compression spring to the other side of the flow limiting stop ring, the flow limiting stop ring is separated from the piston, the fluid passage is largest, the oil viscosity resistance is small, the downward pulling resistance of the pull rod is reduced, and the downward pulling is smooth. When the clothes hanging rod ascends, the booster retracts, the compression spring resets, the oil flows from the side of the flow limiting stop ring to the side of the compression spring, the flow limiting stop ring is attached to the piston, the fluid passage is smallest, the oil viscosity resistance is large, a large damping buffer effect is formed, and the operation is stable and safe.

[0012] The piston rod of the booster is installed in the rotating box. The positioning pin is fixedly installed on the piston rod of the booster, the two ends of the positioning pin pass through the positioning auxiliary groove of the rotating box, and are inserted into the positioning guide groove of the box body. The cylinder cover end of the booster is installed on the box body through a rotating shaft. The booster generates a torque acting on the rotating box to play a role in descending buffering and ascending assisting.

[0013] The box body is provided with a positioning cam device. The positioning cam device comprises a positioning cam and a torsion spring. The positioning cam and the torsion spring are installed in the box body through a rotating shaft. The positioning cam device is located at the side of the rotating box. The torsion spring presses the positioning cam towards the rotating box.

[0014] One end of the supporting rod is fixedly installed in the rotating box. The two ends of the clothes hanging rod are fixedly connected to one end of the supporting rod through connecting pieces. The pull rod is installed in the middle of the clothes hanging rod and can rotate around the clothes hanging rod. The box body is installed on the two side plates of the wardrobe.

[0015] In a normal state, the clothes hanging rod is at the highest position. When clothes need to be hung or taken, the pull rod is pulled downward, the supporting rod drives the rotating box to rotate, and the clothes hanging rod descends to a low position. The torque of the booster acting on the rotating box does not change in direction during the entire lifting process of the clothes hanging rod, and is opposite to the direction of the gravity torque of the clothes. The pulling force of the booster acting on the rotating box gradually increases as the clothes hanging rod descends, providing a large buffering force and ascending assistance, stable operation, and large bearing force.

[0016] When the clothes hanging rod is at the highest position, the positioning pin is at the outermost side of the positioning auxiliary groove, the gravity line of the clothes passes through the rotating center of the rotating box, and the gravity torque of the clothes is zero. At this time, the pulling force of the booster is the smallest. When the clothes hanging rod is pulled downward by the pull rod, the starting pulling force is relatively light.

[0017] When the clothes rod is descending, the rotating box rotates to the positioning point, the positioning pin slides to the innermost side of the positioning auxiliary groove and the positioning surface of the box body with the aid of the positioning guide groove. The pulling force of the booster is decomposed into two components, most of the pulling force is decomposed to the positioning surface, and a small part of the pulling force is decomposed to the positioning auxiliary groove of the rotating box. The positioning cam is pressed against the cam structure on the rotating box under the action of the torsion spring, and the clothes rod cannot automatically rise when the clothes rod is empty.

[0018] When the clothes rod is descending, the rotating box rotates to the positioning point, the positioning pin slides to the innermost side of the positioning auxiliary groove and the positioning surface of the box body with the aid of the positioning guide groove. The pulling force of the booster is decomposed into two components, most of the pulling force is decomposed to the positioning surface, and a small part of the pulling force is decomposed to the positioning auxiliary groove of the rotating box. The positioning cam is pressed against the cam structure on the rotating box under the action of the torsion spring, and the clothes rod cannot automatically rise when the clothes rod is empty.

[0019] When the clothes rod is descending, the rotating box rotates to the positioning point, the positioning pin slides to the innermost side of the positioning auxiliary groove and the positioning surface of the box body with the aid of the positioning guide groove. The pulling force of the booster is decomposed into two components, most of the pulling force is decomposed to the positioning surface, and a small part of the pulling force is decomposed to the positioning auxiliary groove of the rotating box. The positioning cam is pressed against the cam structure on the rotating box under the action of the torsion spring, and the clothes rod cannot automatically rise when the clothes rod is empty.

[0020] The beneficial effects of the present application are that the starting pulling force is light when the clothes rod is descending, the buffering effect is significantly improved during the descending process of the clothes rod, the boosting effect is significantly improved during the rising process of the clothes rod, the booster can still provide large buffering force and rising force when the clothes rod descends to the lowest position, the speed is uniform during the operation process of the clothes rod, the impact force is small, the clothes rod runs stably, the bearing capacity is large, and the service life is long. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a use scene schematic diagram of the present application.

[0022] Figure 2 It is a front view of the present application in a normal state.

[0023] Figure 3 It is a right view of the present application in a normal state.

[0024] Figure 4 It is a partial enlarged view of Figure 2 .

[0025] Figure 5 It is a B-B partial sectional view of Figure 4 .

[0026] Figure 6 It is a C-C partial sectional view of Figure 4 .

[0027] Figure 7 It is a D-D partial sectional view of Figure 4 .

[0028] Figure 8 It is an E-E partial sectional view of Figure 5 .

[0029] Figure 9 is a F-F partial sectional view of Figure 5 .

[0030] Figure 10 is a front view of the clothes hanging rod of the present application when it is lowered to a positioning point.

[0031] Figure 11 is a right view of the clothes hanging rod of the present application when it is lowered to a positioning point.

[0032] Figure 12 is a partial enlarged view of Figure 10 .

[0033] Figure 13 is a B-B partial sectional view of Figure 12 .

[0034] Figure 14 is a C-C partial sectional view of Figure 12 .

[0035] Figure 15 is a D-D partial sectional view of Figure 12 .

[0036] In the figure: 10, box body, 101, box body seat, 1011, positioning guide groove, 1012, positioning surface, 1013, damper installation groove, 102, box body cover, 11, support rod, 12, clothes hanging rod, 13, pull rod, 14, rotating box, 141, main disc, 1411, positioning auxiliary groove, 1412, cam, 1413, boss, 142, auxiliary disc, 15, positioning cam device, 151, positioning cam, 152, torsion spring, 16, positioning pin, 17, booster, 171, piston rod, 172, cylinder body, 173, compression spring, 174, piston, 1741, through hole, 1742, flow limiting groove, 175, flow limiting check ring, 176, cylinder cover, 177, sealing ring check ring, 178, round hoop, 18, damper. DETAILED DESCRIPTION

[0037] The present application will be further described below in conjunction with the accompanying drawings of the embodiments of the present application:

[0038] A liftable clothes hanger comprises a box body (10), a rotating box (14), a booster (17), a support rod (11), a clothes hanging rod (12) and a pull rod (13).

[0039] As shown in Figure 4 , the box body (10) comprises a box body seat (101) and a box body cover (102), which are fixedly connected to form an installation cavity. As shown in Figure 7As shown, the box seat (101) and the box cover (102) are provided with a fan-shaped positioning guide slot (1011) and a fan-shaped damper mounting slot (1013), and the tail of the positioning guide slot (1011) is provided with a positioning surface (1012). A damper (18) is mounted on the damper mounting slot (1013) of the box seat (101) and the box cover (102).

[0040] As shown in Figure 4 , the rotating box (14) includes a main disc (141) and a secondary disc (142), which are fixedly connected to form a mounting cavity. As shown in Figure 6 and Figure 7 , the main disc (141) and the secondary disc (142) are provided with a fan-shaped positioning auxiliary slot (1411), an external cam (1412) structure, and a side surface boss (1413). As shown in Figure 4 and Figure 7 , the rotating box (14) is mounted between the box seat (101) and the box cover (102) through a rotating shaft, and the rotating box (14) is rotatable. The bosses (1413) on the two sides of the rotating box (14) are inserted into the damper mounting slots (1013) of the box seat (101) and the box cover (102), and the bosses (1413) cooperate with the dampers (18) mounted on the damper mounting slots (1013) to play a buffering role.

[0041] As shown in Figure 5 , the booster (17) includes a piston rod (171), a cylinder body (172), a compression spring (173), a piston (174), a flow limiting retainer (175), a cylinder cover (176), a sealing ring retainer (177), and a circular hoop (178). The piston rod (171) extends from the front end of the cylinder body (172), passes through the sealing ring retainer (177), the compression spring (173), the piston (174), and the flow limiting retainer (175), and is pre-pressed by the compression spring (173) and locked at the tail end of the piston rod (171) with a washer and a nut. The cylinder body (172) is filled with oil, and the tail end of the cylinder body (172) is provided with a cylinder cover (176). The cylinder cover (176) and the cylinder body (172) are connected by a ring-shaped buckle, and are tightly wrapped by a circular hoop (178) outside the cylinder body (172). The openings at both ends of the cylinder body (172) are provided with sealing elements to prevent oil leakage. The booster (17) is subjected to tensile force, and when the piston rod (171) is subjected to external tension, it is stretched outward, and the compression spring (173) is compressed to generate a reverse tension on the piston rod (171). In the free state of the booster (17), the compression spring (173) has a certain pre-pressure, causing the piston rod (171) to retract into the cylinder body (172).

[0042] By Figure 13 and Figure 5As can be seen, the stretching process of the booster (17), i.e. the compression process of the compression spring (173) is the process of the clothes hanging rod (12) descending; on the contrary, the retraction process of the booster (17), i.e. the reset process of the compression spring (173) is the process of the clothes hanging rod (12) ascending. Since the reset speed of the spring is relatively fast, the reset speed should be reduced to ensure the safety of the user. As shown in Figure 8 , a through hole (1741) is arranged on the piston (174), a flow limiting groove (1742) is arranged on the through hole (1741), and the cross-sectional area of the flow limiting groove (1742) is smaller than that of the through hole (1741). As shown in Figure 5 , the flow limiting stop ring (175) cooperates with the piston (174) to form a fluid passage with variable cross-sectional area, and the oil flows from one side of the piston (174) to the other side through the fluid passage, and the oil viscosity forms a damping buffer effect. As shown in Figure 13 , when the clothes hanging rod (12) descends, the booster (17) is stretched, the compression spring (173) is compressed, the oil flows from one side of the compression spring (173) to one side of the flow limiting stop ring (175), the flow limiting stop ring (175) is separated from the piston (174), the fluid passage is maximum, the oil viscosity resistance is small, the downward pulling resistance of the pull rod (13) is reduced, and the downward pulling is smooth; as shown in Figure 5 , when the clothes hanging rod (12) ascends, the booster (17) retracts, the compression spring (173) resets, the oil flows from one side of the flow limiting stop ring (175) to one side of the compression spring (173), the flow limiting stop ring (175) is attached to the piston (174), the fluid passage is minimum, the oil viscosity resistance is large, a larger damping buffer effect is formed, and the operation is stable and safe.

[0043] As shown in Figure 9 , Figure 5 , Figure 6 , and Figure 7 , the piston rod (171) of the booster (17) is installed between the main disc (141) and the auxiliary disc (142), the positioning pin (16) is fixedly installed on the piston rod (171), the two ends of the positioning pin (16) protrude from the piston rod (171), the two ends of the positioning pin (16) pass through the positioning auxiliary groove (1411) of the main disc (141) and the auxiliary disc (142), and are inserted into the positioning guide groove (1011) of the box body seat (101) and the box body cover (102), and the cylinder cover (176) end of the booster (17) is installed between the box body seat (101) and the box body cover (102) through a rotating shaft. After the booster (17) is installed, the booster (17) has a pre-pulling stroke of about 2 mm.

[0044] As shown in Figure 5 , and Figure 7As shown, the box body (10) is provided with a positioning cam device (15), which comprises a positioning cam (151) and a torsional spring (152). The positioning cam (151) and the torsional spring (152) are installed between the box body seat (101) and the box body cover (102) through a rotating shaft. The end face of the positioning cam (151) is provided with a boss which cooperates with the torsional arm of the torsional spring (152). The torsional spring (152) presses the positioning cam (151) towards the rotating box (14).

[0045] As shown, Figure 4 , one end of the support rod (11) is fixedly installed between the main disc (141) and the auxiliary disc (142). As shown, Figure 2 , both ends of the clothes hanging rod (12) are fixedly connected to one end of the support rod (11) through connecting pieces. The pull rod (13) is installed in the middle of the clothes hanging rod (12) and can rotate around the clothes hanging rod (12).

[0046] As shown, Figure 1 , the lifting clothes hanger is installed on the two side plates of the wardrobe through the box body (10).

[0047] As shown, Figure 2 , in the normal state, the clothes hanging rod (12) is at the highest position. When it is necessary to hang or take clothes, the clothes hanging rod (12) is pulled downward through the pull rod (13), the support rod (11) drives the rotating box (14) to rotate, and the clothes hanging rod (12) is lowered to a low position (as shown in Figure 10 , the rotating angle of the rotating box (14) is maximum 90 degrees. As shown in Figure 5 and Figure 13 , it can be seen that the torque of the booster (17) acting on the rotating box (14) does not change in direction during the entire lifting process of the clothes hanging rod (12) and is opposite to the direction of the gravity torque of the clothes. With the lowering of the clothes hanging rod (12), the gravity torque of the clothes gradually increases, and the compression stroke of the compression spring (173) also gradually increases, the pulling force of the booster (17) gradually increases, a larger buffering force and a rising assisting force are provided, the operation is stable, and the bearing capacity is large.

[0048] When the clothes hanging rod (12) is at the highest position, as shown in Figure 6 , the positioning pin (16) is at the outermost side of the positioning auxiliary groove (1411), as shown in Figure 5 , the gravity line of the clothes passes through the rotation center of the rotating box (14), and the gravity torque of the clothes is zero. At this time, the pulling force of the booster (17) is also the smallest. When the clothes hanging rod (12) is lowered by using the pull rod (13), the starting pulling force is relatively light.

[0049] The clothes hanging rod (12) continues to be lowered, as shown in Figure 13 , Figure 14 and Figure 15As shown, when the rotating box (14) rotates to the positioning point, under the assistance of the positioning guide groove (1011), the positioning pin (16) slides to the innermost side of the positioning auxiliary groove (1411) and the positioning surface (1012) of the box body (10), and the positioning cam (151) abuts against the cam (1412) structure on the rotating box (14) under the action of the torsion spring (152). At this time, the axis of the booster (17) is not vertically perpendicular to the positioning surface (1012) but forms a certain included angle, the pulling force of the booster (17) is decomposed into two components, most of the pulling force is decomposed onto the positioning surface (1012), and a small part of the pulling force is decomposed onto the positioning auxiliary groove (1411) of the rotating box (14). The torque direction of the small part of the pulling force acting on the rotating box (14) is opposite to the gravity torque of the clothes, so that the positioning pin (16) is always in contact with the positioning auxiliary groove (1411) during the operation process, and the jumping is reduced. In order to ensure that the hanging rod (12) does not automatically rise when it is empty, the torque generated by the positioning cam (151) acting on the cam (1412) structure on the rotating box (14) should be greater than the torque of the small part of the pulling force of the booster (17) acting on the rotating box (14), so that the rotating box (14) cannot automatically rotate, and the hanging rod (12) cannot automatically rise.

[0050] The hanging rod (12) continues to descend, and when the rotating box (14) rotates beyond the positioning point, the positioning pin (16) is separated from the positioning surface (1012), and the pulling force of the booster (17) is fully applied to the positioning auxiliary groove (1411) of the rotating box (14), so as to provide a large buffering force and a rising assisting force at the end of the descending stroke of the hanging rod (12), reduce the impact force on the clothes hanger, and run stably.

[0051] As shown in the figure, Figure 15 At the rear end of the descending stroke of the hanging rod (12), the boss (1413) of the rotating box (14) is in contact with the damper (18), the damper (18) generates buffering, and the operation is more stable.

[0052] The above is only the preferred embodiment of the present application, and it should be noted that for those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A height-adjustable clothes hanger, comprising a housing, a rotating housing, an assist device, support rods, a hanging rod, and a pull rod. The pull rod is installed in the middle of the hanging rod. Both ends of the hanging rod are fixedly connected to one end of two support rods via connectors. The other ends of the two support rods are fixedly connected to the rotating housing. The rotating housing is installed in the housing via a pivot. The piston rod of the assist device is connected to the rotating housing. The other end of the assist device is connected to the housing via a pivot. The clothes hanger is installed on two side panels of a wardrobe via two housings. Its features are: The utility model also includes positioning cam device (15) and positioning pin (16), the box body (10) is equipped with positioning guide groove (1011), the tail of positioning guide groove (1011) is equipped with positioning face (1012), the rotating box (14) is equipped with positioning auxiliary groove (1411), and the outside is equipped with cam (1412) structure, the force of booster (17) is tensile, and the piston rod of booster (17) is stretched outward when receiving external tension, and generates reverse tension, the piston rod of booster (17) is fixedly installed positioning pin (16), and the both ends of positioning pin (16) pass through the positioning auxiliary groove (1411) of rotating box (14) and are inserted into the positioning guide groove (1011) of box body (10), and the other end of booster (17) is connected with box body (10) through pivot, positioning cam device (15) is installed in box body (10) through pivot, and positioning cam device (15) is located in the side of rotating box (14), the torque of booster (17) acting on rotating box (14) does not change in the whole lifting process of clothes pole (12), and it is opposite with the torque direction of gravity of clothes, the tension of booster (17) acting on rotating box (14) gradually increases along with the descent of clothes pole (12), when rotating box (14) rotates to the positioning point when clothes pole (12) descends, positioning pin (16) slides to the innermost side of positioning auxiliary groove (1411) and the positioning face (1012) of box body (10) under the assistance of positioning guide groove (1011), and positioning cam device (15) bears cam (1412) structure on rotating box (14), so that rotating box (14) cannot automatically rotate back.

2. The vertically movable clothes hanger according to claim 1, wherein: The box body (10) includes box body seat (101) and box body cover (102), and the two are fixedly connected to form an installation cavity; the positioning guide grooves (1011) on the box body seat (101) and the box body cover (102) are fan-shaped, and the box body seat (101) and the box body cover (102) are also provided with fan-shaped damper mounting grooves (1013).

3. The vertically movable clothes hanger according to claim 1, wherein: The rotating box (14) includes a main disc (141) and a secondary disc (142), and the two are fixedly connected to form an installation cavity; the positioning auxiliary grooves (1411) on the main disc (141) and the secondary disc (142) are fan-shaped, and the side surfaces of the main disc (141) and the secondary disc (142) are also provided with bosses (1413); the rotating box (14) is installed between the box body seat (101) and the box body cover (102) through a pivot, and the bosses (1413) are inserted into the damper mounting grooves (1013) of the box body seat (101) and the box body cover (102).

4. The vertically movable clothes hanger according to claim 2, wherein: The utility model also includes a damper (18), which is installed in the damper mounting grooves (1013) of the box body seat (101) and the box body cover (102), and cooperates with the bosses (1413) on the side surfaces of the main disc (141) and the secondary disc (142).

5. The vertically movable clothes hanger according to claim 1, wherein: The booster (17) comprises a piston rod (171), a cylinder (172), a compression spring (173), a piston (174), a flow-limiting check ring (175) and a cylinder cover (176); the piston rod (171) extends from the front end of the cylinder (172), passes through the compression spring (173), the piston (174) and the flow-limiting check ring (175), pre-presses the compression spring (173) and is locked at the tail end of the piston rod (171) by a washer and a nut, the cylinder (172) is filled with oil, the tail end of the cylinder (172) is provided with the cylinder cover (176), and the openings at both ends of the cylinder (172) are provided with sealing members to prevent oil leakage; the piston (174) is provided with a through hole (1741), the through hole (1741) is provided with a flow-limiting groove (1742), the cross-sectional area of the flow-limiting groove (1742) is smaller than that of the through hole (1741), and the flow-limiting check ring (175) cooperates with the piston (174) to form a fluid passage with a variable cross-sectional area.

6. The vertically movable clothes hanger according to claim 5, wherein: Further comprising a sealing ring check ring (177) and a round hoop (178), the sealing ring check ring (177) is installed at the outlet end of the piston rod (171) of the cylinder (172) to limit the movement of the sealing ring, and the cylinder cover (176) and the cylinder (172) are connected by an annular buckle and are tightly clamped by the round hoop (178) outside the cylinder (172).

7. The vertically movable clothes hanger according to claim 5, wherein: The piston rod (171) is installed between the main disc (141) and the auxiliary disc (142), the piston rod (171) is fixedly connected with a positioning pin (16), the two ends of the positioning pin (16) protrude from the piston rod (171), the two ends of the positioning pin (16) pass through positioning auxiliary grooves (1411) of the main disc (141) and the auxiliary disc (142) and are inserted into positioning guide grooves (1011) of the box body seat (101) and the box body cover (102), and the end of the cylinder cover (176) of the booster (17) is installed between the box body seat (101) and the box body cover (102) through a rotating shaft.

8. The vertically movable clothes hanger according to claim 1, wherein: The positioning cam device (15) comprises a positioning cam (151) and a torsion spring (152), the positioning cam (151) and the torsion spring (152) are installed between the box body seat (101) and the box body cover (102) through a rotating shaft, the end face of the positioning cam (151) is provided with a boss which cooperates with a torsion arm of the torsion spring (152), and the torsion spring (152) presses the positioning cam (151) towards the rotating box (14).

9. The vertically movable clothes hanger according to claim 1, wherein: When the clothes hanging rod (12) descends and the rotating box (14) rotates beyond the positioning point, the positioning pin (16) is separated from the positioning face (1012) of the box body (10), and the pulling force of the booster (17) is fully applied to the rotating box (14).

10. The vertically movable clothes hanger according to claim 1, wherein: One end of the support rod (11) is fixedly installed between the main disc (141) and the auxiliary disc (142); the two ends of the clothes hanging rod (12) are fixedly connected to one end of the support rod (11); and the pull rod (13) is installed in the middle of the clothes hanging rod (12) and can rotate around the clothes hanging rod (12).

11. The vertically movable clothes hanger according to claim 1, wherein: The lifting clothes hanger is installed on two side plates of a wardrobe through the box body (10).

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