CN212428408U - Self-balancing pulley device - Google Patents

Abstract

The utility model discloses a self-balancing pulley device, which comprises a main body, a plurality of swing components and a plurality of pulley components, wherein the swing components are symmetrically arranged on the main body and comprise swing arms and a first mounting shaft; the pulley components are symmetrically arranged on the end surface of the swinging arm by taking the axial center of the swinging shaft as a symmetrical axis. The utility model has the advantages that: the utility model discloses a gravity self-balancing function ensures that this pulley gear slides steadily at the bearing state, and the atress size of every movable pulley is the same, reaches the utility model discloses a having multiunit self-balancing structure, adjusting, controlling about, bearing are adjusted around, are respectively, increase this pulley gear's stability and life.

Description

Self-balancing pulley device

Technical Field

The utility model relates to a loose pulley assembly field, in particular to self-balancing pulley gear.

Background

Sliding door leaves in shower rooms, wall door bodies and the like are all assisted to be opened by sliding through a pulley device. Door page or leaf weight is great, rocks in order to prevent the door page or leaf, can adopt the runner more than two to come supplementary rotation usually, but in order to make the smooth slip of door page or leaf, all runners require when rotating to rotate on same face, if the height is uneven appears, so the door page or leaf also can follow unstability, can produce noise etc. bring certain hidden danger.

The existing pulley device is basically adjusted by hoisting a swing column of a sliding wheel, the swing column swings to realize automatic adjustment, the adjusting mode has the defects that all wheel sheets are stressed unevenly under the condition that deformation occurs in a guide rail, so that the push-pull hand feeling is poor, and the wheel sheets are easy to damage, and the force on a bearing part is only distributed to partial wheel sheets, so that the stressed wheel sheets are easy to damage. The swinging column is easy to damage due to the whole gravity and swinging force borne by the swinging column.

SUMMERY OF THE UTILITY MODEL

According to one aspect of the utility model, a self-balancing pulley device is provided, which comprises a main body, a plurality of swing components and a plurality of pulley components, wherein the plurality of swing components are symmetrically arranged on the main body, each swing component comprises a swing arm and a first installation shaft, a first swing groove is arranged on the end surface of the main body corresponding to the swing component, and the swing arm is arranged in the first swing groove through the first installation shaft; the pulley components are symmetrically arranged on the end surface of the swing arm by taking the axis of the first mounting shaft as a symmetrical axis.

The utility model provides a pulley gear that can self-balancing, its mainly used installs to hanging sliding door in left direction sliding action. When the sliding door hanging device is used for a long time, the sliding rail is deformed and dust is accumulated, one or more pulley assemblies cannot be completely in interference fit with a bearing surface of the sliding rail, and under the action of gravity, the swinging arm can swing and adjust the pulley assemblies back and forth, so that the pulley assemblies can be in interference fit with the bearing surface, the guide sliding of the pulley device is smoother, and the gravity self-balancing function is realized; and ideally, the force experienced by each sheave assembly is the bearing force divided by the total number of sheave assemblies. The balance function of the utility model ensures the pulley device to slide stably on the slide rail; the utility model discloses simple structure, it has gravity self-balancing function, improves pulley gear's life.

In some embodiments, a mounting block is disposed in a middle portion of the first swing groove, the first mounting shaft is disposed on the mounting block, a cushion is disposed on the first mounting shaft, and the cushion is located between the mounting block and the swing arm.

Thereby, the swing arm is mounted to the mounting block by the first mounting shaft, and the swing arm swings in the first swing groove with the first mounting shaft; and a buffer cushion is arranged between the mounting block and the swing arm to serve as a buffer, so that the service life of the swing arm is prolonged.

In some embodiments, the pulley assembly includes a second mounting shaft, two symmetrically distributed shaft sleeves and two symmetrically distributed sliding wheels, a first through hole is formed in the end surface of the swing arm by taking the axis of the first mounting shaft as a symmetric axis, the two sliding wheels are arranged in the first through hole through the second mounting shaft, the two shaft sleeves are arranged on the second mounting shaft, and the outer wall of each shaft sleeve abuts against the inner wall of the first through hole.

From this, pulley assembly also attaches gravity self-balancing structure, does the utility model discloses a second group self-balancing structure. The first through hole conical surface of main part and the conical surface cooperation of axle sleeve, under the action of gravity, the main part can be in the center of two axle sleeves automatically, and gravity autoregression center function about realizing.

In some embodiments, the first through hole is an elongated conical hole with an area that gradually decreases inward.

Therefore, in order to enable the shaft sleeve to swing in the first through hole more smoothly, the first through hole is in the shape of an oblong hole with an arc-shaped inner wall, and the shaft sleeve can only swing up and down in the first through hole.

In some embodiments, the self-balancing pulley device further comprises a mounting assembly, the mounting assembly is arranged on the main body, and the mounting assembly is located on the symmetry axis position of two adjacent swinging assemblies.

Thus, the mounting assembly is used to connect to a door or other load.

In some embodiments, the mounting assembly includes a swing shaft and a bearing member, the main body is provided with a second swing groove, the swing shaft is movably disposed in the second swing groove, the bottom of the second swing groove is provided with a second through hole, and the bearing member passes through the second through hole and is connected with the swing shaft.

Therefore, the self-balancing device bears the weight through the swinging shaft and the bearing part, and under the condition that the self-balancing device moves, the swinging shaft can swing left and right adaptively until the stress is balanced, so that the self-balancing device is always in a stable contact state with a bearing surface; even if the bearing surface is slightly concave-convex, the self-balancing device can realize automatic balance according to the actual bearing force, the bearing object is always in a vertical downward state, and the service life of the self-balancing device is prolonged. This is the utility model discloses a third group self-balancing structure.

In some embodiments, the second through-hole is an oblong hole.

Thereby, the swing shaft can swing in the second through hole more smoothly.

In some embodiments, the self-balancing pulley device further includes a pressing cover, the pressing cover is disposed on the second swing groove, a bottom of the pressing cover is provided with a cambered surface corresponding to the swing shaft, and the cambered surface is matched with an outer wall of the swing shaft.

Therefore, the gland is used for pressing and installing the swinging shaft, the bottom of the gland is an arc surface matched with the swinging shaft, and the swinging shaft can be limited and can only swing.

In some embodiments, the gland is provided with a limiting groove, the outer wall of the swinging shaft close to the cambered surface is provided with a limiting lug, and the limiting lug is matched with the limiting groove.

Therefore, the limit groove is matched with the limit lug to limit the swing angle of the swing shaft.

The utility model has the advantages that: the utility model discloses a gravity self-balancing function ensures that this pulley gear slides steadily at the bearing state, and the atress size of every movable pulley is the same, reaches the utility model discloses a having multiunit self-balancing structure, adjusting, controlling about, bearing are adjusted around, are respectively, increase this pulley gear's stability and life.

Drawings

Fig. 1 is a schematic perspective view of a self-balancing pulley device according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of the self-balancing pulley apparatus shown in fig. 1.

Fig. 3 is a side view and a sectional view in a-a direction of the self-balancing pulley apparatus shown in fig. 1.

Fig. 4 is a front view structural diagram of the self-balancing pulley device shown in fig. 1 and a sectional structural diagram in the direction of B-B thereof.

Fig. 5 is a schematic front view of a self-balancing pulley device according to another embodiment of the present invention.

Reference numbers in the figures: 1-main part, 11-first swing groove, 12-mounting block, 13-second swing groove, 14-second through hole, 2-swing component, 21-swing arm, 211-first through hole, 22-first mounting shaft, 23-buffer pad, 3-pulley component, 31-second mounting shaft, 32-shaft sleeve, 33-sliding wheel, 4-mounting component, 41-swing shaft, 411-limit bump, 42-bearing component, 43-gland, 431-cambered surface and 432-limit groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Fig. 1-2 schematically show a self-balancing pulley device according to an embodiment of the present invention, which includes a main body 1, a plurality of swing assemblies 2 and a plurality of pulley assemblies 3, wherein the plurality of swing assemblies 2 are symmetrically disposed on the main body 1, the swing assemblies 2 include swing arms 21 and first mounting shafts 22, first swing grooves 11 are disposed on end surfaces of the main body 1 corresponding to the swing assemblies 2, and the swing arms 21 are disposed in the first swing grooves 11 through the first mounting shafts 22; the plurality of pulley assemblies 3 are divided into a plurality of groups, and one group of the pulley assemblies 3 is symmetrically arranged on the end surface of the swing arm 21 by taking the axial center of the first mounting shaft 22 as a symmetrical axis. In this embodiment, two sets of swing assemblies 2 are provided, four pulley assemblies 3 are provided, two first swing grooves 11 are provided on the main body 1, and the two first swing grooves 11 are symmetrically distributed; on the main part 1 of locating of 2 symmetries of two sets of swing subassemblies, four loose pulley assembly 3 evenly divide into two sets ofly, two loose pulley assembly 3 of every group, and on one of them swing arm 21 was located to two loose pulley assembly 3 of a set of, two loose pulley assembly 3 of another set of locate on the terminal surface of another swing arm 21.

The utility model provides a pulley gear that can self-balancing, its mainly used installs to hanging sliding door in left direction sliding action. When the sliding door hanging device is used for a long time, the sliding rails can deform, accumulate dust and the like, so that one or more pulley assemblies 3 cannot be completely in interference fit with the bearing surfaces of the sliding rails, and under the action of gravity, the swing arm 21 can swing and adjust the pulley assemblies 3 forwards and backwards, so that the pulley assemblies 3 can be in interference fit with the bearing surfaces, the guide sliding of the pulley device is smoother, and the gravity self-balancing function is realized; and ideally, the force experienced by each sheave assembly 3 is the load bearing force divided by the total number of sheave assemblies 3. The balance function of the utility model ensures the pulley device to slide stably on the slide rail; the utility model discloses simple structure, it has gravity self-balancing function, improves pulley gear's life.

With reference to fig. 1-2, the first swing groove 11 is an oblong through groove, and a mounting block 12 is disposed in the middle of the first swing groove 11; the first mounting shaft 22 is arranged on the mounting block 12, a cushion pad 23 is arranged on the first mounting shaft 22, the cushion pad 23 is a circular rubber pad, and the cushion pad 23 is positioned between the mounting block 12 and the swing arm 21; the swing arm 21 is an elongated block, a groove is formed in the middle of the swing arm 21 corresponding to the mounting block 12, and the swing arm 21 is just embedded in the first swing groove 11 in a swinging mode during mounting. The swing arm 21 is mounted to the mounting block 12 by a first mounting shaft 22, and the swing arm 21 swings in the first swing groove 11 by the first mounting shaft 22; and a buffer cushion 23 is arranged between the mounting block 12 and the swing arm 21 to buffer, so that the service life of the swing arm 21 is prolonged.

Referring to fig. 1-2, the pulley assembly 3 includes a second mounting shaft 31, two symmetrically disposed bushings 32, and two symmetrically disposed sliding wheels 33. The shaft sleeve 32 is a conical shaft sleeve, that is, a section of the outer wall of the shaft sleeve 32 is conical; a first through hole 211 is formed in the end surface of the swing arm 21 with the axis of the first mounting shaft 22 as a symmetry axis, and the two sliding wheels 33 are disposed in the first through hole 211 through the second mounting shaft 31; the two shaft sleeves 32 are sleeved on the second mounting shaft 31, and the outer walls of the shaft sleeves 32 are abutted against the inner wall of the first through hole 211.

Pulley block 3 also attaches gravity self-balancing structure, does the utility model discloses a second group self-balancing structure. The conical surface of the first through hole 211 of the main body 1 is matched with the conical surfaces of the shaft sleeves 32, and under the action of gravity, the main body 1 can be automatically positioned at the centers of the two shaft sleeves 32, so that the function of automatically returning to the center by the left gravity and the right gravity is realized.

Referring to fig. 1-2, the first through hole 211 is a long conical hole with an area gradually decreasing inward, and actually, the inner hole of the first through hole 211 is a circular hole and the outer hole is a long circular hole. In order to make the shaft sleeve 32 swing in the first through hole 211 more smoothly, the first through hole 211 is shaped as an oblong hole with an arc-shaped inner wall, and the shaft sleeve 32 can swing up and down only in the first through hole 211.

With reference to fig. 1-3, the self-balancing pulley apparatus further includes a mounting assembly 4, the mounting assembly 4 is disposed on the main body 1, and the mounting assembly 4 is located at a position of a symmetry axis of two adjacent swing assemblies 2. The mounting assembly 4 is used for connecting a door body or other heavy objects.

Referring to fig. 1-3, the mounting assembly 4 includes a swing shaft 41 and a bearing member 42, the main body 1 is provided with a second swing groove 13, a direction of the second swing groove 13 is perpendicular to a direction of the first swing groove 11, the swing shaft 41 is movably disposed in the second swing groove 13, a second through hole 14 is disposed at a bottom of the second swing groove 13, and the bearing member 42 passes through the second through hole 14 and is connected to the swing shaft 41. The bearing member 42 is a bolt for connecting a load.

The self-balancing device bears the weight through the swinging shaft 41 and the bearing part 42, and under the condition that the self-balancing device moves, the swinging shaft 41 can swing left and right adaptively until the stress is balanced, so that the self-balancing device is always in a stable contact state with a bearing surface; even if the bearing surface is slightly concave-convex, the self-balancing device can realize automatic balance according to the actual bearing force, the bearing object is always in a vertical downward state, and the service life of the self-balancing device is prolonged. This is the utility model discloses a third group self-balancing structure.

Referring to fig. 1-3, the second through hole 14 is an oblong hole. To allow the swing shaft 41 to swing more smoothly in the second through hole 14.

With reference to fig. 1 to 3, the self-balancing pulley apparatus further includes a pressing cover 43, the pressing cover 43 is disposed on the second swing groove 13, the pressing cover 43 is fixed by bolts, a bottom of the pressing cover 43 is provided with an arc surface 431 corresponding to the swing shaft 41, and the arc surface 431 is matched with an outer wall of the swing shaft 41. The pressing cover 43 is used for pressing and mounting the swinging shaft 41, and the bottom of the pressing cover 43 is a cambered surface 431 matched with the swinging shaft 41, so that the swinging shaft 41 can be limited and can only swing.

With reference to fig. 3-4, the pressing cover 43 is provided with a limiting groove 432, the outer wall of the swing shaft 41 close to the arc 431 is provided with a limiting protrusion 411, and the limiting protrusion 411 is matched with the limiting groove 432. The limit groove 432 is engaged with the limit projection 411 to limit the swing angle of the swing shaft 41.

The utility model relates to a specific using method,

the weight bearing objects take a bathroom door as an example: the gravity balance wheel of the utility model is arranged on the guide rail, and the door body is connected in the bearing part 42, thus completing the installation;

in the pushing process of the door body, because the pushing force is different from the advancing direction of the door body, the door body can swing, the swinging can influence the balanced movement of the gravity balance wheel, and under the condition of the gravity balance wheel, firstly, the swinging shaft 41 can swing left and right adaptively until the force is balanced, so that the gravity balance wheel is always in a stable contact state with a bearing surface; secondly, when one or more sliding wheels 33 can not contact the bearing surface, the shaft sleeve 32 can drive the second mounting shaft 31 to enable the sliding wheels 33 to swing under the action of gravity, so that all the sliding wheels 33 can contact the bearing surface at the same time, and the function of gravity automatically returning to the center line is realized; and c, once again, under the action of gravity, the swing arm 21 can swing the pulley assembly 3 back and forth to be adjusted, so that the pulley assembly 3 can be in interference fit with a bearing surface, the guide sliding of the pulley device is smoother, and the gravity self-balancing function is realized. Ideally, the force applied to each sheave 33 is the load bearing force divided by the total number of sheaves 33.

The utility model discloses can apply to single track slide rail, double track slide rail or even multi-rail slide rail, its application range is more than the door body, also can be other needs positive and negative removal's other heavy object that holds.

Example two

Referring to fig. 5, the embodiment is substantially the same as the first embodiment except for the number of the swing member 2, the sliding wheel 33, and the load bearing member, which is described below.

In this embodiment, three groups of swing assemblies 2 are provided, six pulley assemblies 3 are provided, three first swing grooves 11 are provided on the main body 1, and the three first swing grooves 11 are distributed in an array; three sets of swing subassembly 2 are located on main part 1 in array, and six loose pulley assembly 3 are on average divided into three sets, two loose pulley assembly 3 of every group, and two loose pulley assembly 3 of a set of locate on a swing arm 21. The two bearing components are arranged, that is, the two second swing grooves 13 on the main body 1 are also arranged, the two second swing grooves 13 are respectively located on the symmetry axes of the two adjacent first swing grooves 11, and the two bearing components are respectively arranged in the two second swing grooves 13.

Compared with the first embodiment, in this embodiment, the contact area between the bearing member 42 and the load-bearing object is increased, the two swing shafts 41 bear the weight of the load-bearing object at the same time, that is, the weight borne by a single swing shaft 41 is reduced, and the service life of the swing shaft 41 is prolonged, and in this embodiment, the weight borne by each sliding wheel 33 is smaller than that in the first embodiment, so that the service life of the pulley device can be prolonged.

The utility model has the advantages that: the utility model discloses a gravity self-balancing function ensures that this pulley gear slides steadily at the bearing state, and the atress size of every movable pulley is the same, reaches the utility model discloses a having multiunit self-balancing structure, adjusting, controlling about, bearing are adjusted around, are respectively, increase this pulley gear's stability and life.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims (9)

1. The self-balancing pulley device is characterized by comprising a main body (1), a plurality of swing assemblies (2) and a plurality of pulley assemblies (3), wherein the swing assemblies (2) are symmetrically arranged on the main body (1), each swing assembly (2) comprises a swing arm (21) and a first mounting shaft (22), a first swing groove (11) is formed in the end face of the main body (1) and corresponds to each swing assembly (2), and each swing arm (21) is arranged in the first swing groove (11) through the first mounting shaft (22); the pulley assemblies (3) are symmetrically arranged on the end surface of the swing arm (21) by taking the axial center of the first mounting shaft (22) as a symmetrical axis.

2. The self-balancing pulley device of claim 1, wherein the first swing groove (11) is provided at a middle portion thereof with a mounting block (12), the first mounting shaft (22) is provided on the mounting block (12), the first mounting shaft (22) is provided with a cushion pad (23), and the cushion pad (23) is located between the mounting block (12) and the swing arm (21).

3. The self-balancing pulley device according to claim 2, wherein the pulley assembly (3) includes a second mounting shaft (31), two symmetrically distributed shaft sleeves (32), and two symmetrically distributed sliding wheels (33), a first through hole (211) is formed in an end surface of the swing arm (21) with an axial center of the first mounting shaft (22) as a symmetric axis, the two sliding wheels (33) are disposed in the first through hole (211) through the second mounting shaft (31), the two shaft sleeves (32) are sleeved on the second mounting shaft (31), and an outer wall of the shaft sleeve (32) abuts against an inner wall of the first through hole (211).

4. The self-balancing pulley device according to claim 3, wherein the first through hole (211) is a long conical hole having an area gradually decreasing inward.

5. The self-balancing pulley device according to any one of claims 1 to 4, further comprising a mounting assembly (4), wherein the mounting assembly (4) is disposed on the main body (1), and the mounting assembly (4) is located at a position of a symmetry axis of two adjacent swing assemblies (2).

6. The self-balancing pulley device of claim 5, wherein the mounting assembly (4) comprises a swing shaft (41) and a bearing member (42), the main body (1) is provided with a second swing groove (13), the swing shaft (41) is movably disposed in the second swing groove (13), the bottom of the second swing groove (13) is provided with a second through hole (14), and the bearing member (42) passes through the second through hole (14) and is connected with the swing shaft (41).

7. The self-balancing pulley arrangement of claim 6, wherein the second through hole (14) is an oblong hole.

8. The self-balancing pulley device according to claim 5, further comprising a pressing cover (43), wherein the pressing cover (43) is disposed on the second swing groove (13), the bottom of the pressing cover (43) is provided with an arc surface (431) corresponding to the swing shaft (41), and the arc surface (431) is matched with the outer wall of the swing shaft (41).

9. The self-balancing pulley device according to claim 8, wherein the pressing cover (43) is provided with a limiting groove (432), the outer wall of the swinging shaft (41) close to the cambered surface (431) is provided with a limiting projection (411), and the limiting projection (411) is matched with the limiting groove (432).

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