Bidirectional locking bearing and control device thereof
By introducing roller assembly and unlocking parts into the bearing, the combination of spring and unlocking plates is used to realize the two-way locking and free rotation functions of the bearing, solving the problem that existing bearings cannot achieve bidirectional braking.
Patent Information
- Application Number
- CN202421635160.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-11
AI Technical Summary
Existing bearings cannot achieve bidirectional braking when needed, and cannot move objects when not needed.
A two-way locking bearing is designed. By setting a roller assembly and unlocking member inside the bearing, the cooperation of the spring and unlocking plate is used to achieve bidirectional locking when not needed, and free rotation is achieved through the rotation of the unlocking member when needed.
The mutual braking of the inner and outer shells is achieved when not needed, avoid unnecessary rotation, and can rotate freely when needed, meeting the need to fix and move objects simultaneously.
Smart Images
Figure CN222687159U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bearing devices, in particular to a bidirectional locking bearing and a control device thereof. Background Art
[0002] Bearings are generally used for transmission. Most bearings can rotate freely in both directions, and some bearings can also rotate in one direction.
[0003] The rotation of the bearing can drive the internal parts of the bearing to rotate at the same time, and the rotation of the internal parts can drive the movement of other objects, thereby controlling the movement of other objects through the rotation of the bearing. When other objects need to be able to move freely and be fixed in a certain position at any time, the bearing needs to be able to rotate at any time when needed and brake in time when not needed. Currently, the existing two-way transmission bearings and one-way transmission bearings cannot achieve this function.
[0004] Therefore, in order to solve the above technical problems, a new technical solution needs to be proposed to solve the problem, especially to provide a bidirectional locking bearing and a control device thereof. Utility Model Content
[0005] The utility model provides a bidirectional locking bearing and a control device thereof to solve the technical problem that the existing bearing cannot realize bidirectional braking when needed.
[0006] To achieve the above-mentioned purpose, the following technical scheme is provided: a bidirectional locking bearing, comprising an outer shell, an inner shell is arranged in the outer shell, a roller assembly is arranged between the outer shell and the inner shell; a mounting platform is arranged on the outer periphery of the inner shell, a second plug hole is arranged inside the inner shell, and a mounting column is arranged on the mounting platform; the roller assembly comprises a first roller, a spring and a second roller, and the spring is arranged through the mounting column; an unlocking gap is arranged between the outer shell and the mounting platform, and the first roller and the second roller are installed in the unlocking gap; the diameters of the first roller and the second roller are larger than the minimum unlocking gap between the outer shell and the mounting platform;
[0007] It also includes an unlocking piece, which has a first plug hole on the front side and an unlocking piece on the back side, and the unlocking piece is located in the unlocking gap.
[0008] Preferably, the mounting platform is arranged to protrude from the outer peripheral edge of the inner shell; the surface of the mounting platform is planar, and the unlocking gap between the mounting platform and the outer shell is in the shape of a space with small ends and a large middle.
[0009] Preferably, a mounting hole is provided on the mounting column, and the spring is inserted through the mounting hole and is engaged therewith.
[0010] Preferably, an open groove is provided in the outer shell, and the inner shell is installed in the open groove.
[0011] Preferably, it further comprises a fixing shell, wherein a groove and a through hole are arranged inside the fixing shell, a fixing hole is arranged on the outer periphery of the fixing shell, and the outer shell is clamped in the groove.
[0012] Preferably, it also includes a fixing nail, which passes through the fixing hole and is fixedly connected to the external carrier.
[0013] Preferably, fixing columns are arranged around the groove, fixing grooves are arranged around the outer shell, and the fixing columns are matched with the fixing grooves; the through hole, the first plug hole and the second plug hole are located on the same straight line.
[0014] The utility model also discloses a bidirectional locking bearing control device, which includes the aforementioned bearing and a rocker arm, wherein a first plug-in, a second plug-in and a connecting shaft are sequentially arranged in front of the rocker arm, the first plug-in is adapted to the first socket, the second plug-in is adapted to the second socket, and the connecting shaft is arranged on the second plug-in.
[0015] Preferably, the unlocking piece extends into the unlocking gap and contacts the first roller and the second roller.
[0016] Preferably, a connecting hole is provided on the connecting shaft; when the rocker arm is adapted to the bearing, the connecting shaft passes through the second plug hole, the first plug hole and the through hole.
[0017] Beneficial effects:
[0018] When the unlocking piece is not inserted into the bearing disclosed by the utility model or the inserted unlocking piece does not rotate actively, the roller assembly in the unlocking gap is under the action of the spring. When the inner shell is directly rotated, whether it is rotated clockwise or counterclockwise, the spring will squeeze and push the front roller forward. However, the diameter of the roller is larger than the minimum unlocking gap between the outer shell and the mounting platform, so that the roller will be stuck in the unlocking gap the more it moves forward, thereby locking the inner shell and the outer shell, making it impossible for the inner shell and the outer shell to rotate relative to each other.
[0019] When needed, the unlocking piece is inserted and rotated so that the unlocking plate pushes the first roller and the second roller. At the same time, the unlocking plates at both ends of the first roller and the second roller restrict the first roller and the second roller to a space where the unlocking gap is larger than the roller diameter, so that the first roller and the second roller will not be stuck in the unlocking gap, thereby not restricting the relative rotation of the inner shell and the outer shell.
[0020] The bidirectional locking bearing control device disclosed by the utility model controls the rotation of the unlocking piece through the rocker arm, thereby controlling the mutual rotation of the inner shell and the outer shell of the bearing. The connecting shaft arranged in front of the rocker arm can be connected to other objects. When the rocker arm rotates, the other objects move. When the rocker arm does not actively rotate, the bearing is bidirectionally locked and will not rotate freely, thereby controlling other objects not to actively move when not needed. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the exploded structure of the bearing of the utility model.
[0022] Figure 2 It is a schematic diagram of the combined structure of the bearing of the utility model.
[0023] Figure 3 It is a structural schematic diagram of the bearing of the utility model without the unlocking piece installed.
[0024] Figure 4 yes Figure 3 Schematic diagram of the enlarged structure at point A in the middle.
[0025] Figure 5 It is a structural schematic diagram of the fixed shell of the utility model.
[0026] Figure 6 It is a structural schematic diagram of the inner shell of the utility model.
[0027] Figure 7 It is a structural schematic diagram of the unlocking piece of the utility model.
[0028] Figure 8 It is a schematic diagram of the exploded structure of the bearing and the control device of the utility model.
[0029] Fig. 9 This is a schematic diagram of the installation structure of the bearing and the control device of the utility model. Figure 1 .
[0030] Fig.10 This is a schematic diagram of the installation structure of the bearing and the control device of the utility model. Figure 2 .
[0031] in:
[0032] 1. Fixed shell; 11. Fixed hole; 12. Groove; 13. Perforation; 14. Fixed column; 2. Fixed nail; 3. Outer shell; 31. Open slot; 32. Fixed slot; 4. Inner shell; 41. Mounting column; 411. Mounting hole; 42. Mounting table; 43. Second socket; 5. Roller assembly; 51. First roller; 52. Spring; 53. Second roller; 6. Unlocking piece; 61. Unlocking piece; 62. First socket; 7. Rocker arm; 71. First plug-in; 72. Second plug-in; 73. Connecting shaft; 731. Connecting hole; 8. Unlocking gap. DETAILED DESCRIPTION
[0033] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail through the accompanying drawings and embodiments. The specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.
[0034] In the description of the present utility model, it should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0035] In the description of the present utility model, it should be noted that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. The meaning of "several" is one or more, unless otherwise clearly and specifically defined.
[0036] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or a conductive connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] like Figures 1 to 7As shown, a bidirectional locking bearing comprises a fixed shell 1, a fixing pin 2, an outer shell 3, an inner shell 4, a roller assembly 5 and an unlocking member 6, wherein the inner shell 4 is arranged inside the outer shell 3, and the roller assembly 5 and the unlocking member 6 are arranged between the outer shell 3 and the inner shell 4. The outer shell is hollow inside, and an opening groove 31 is arranged inside, and the inner shell 4 is arranged in the opening groove 31 of the outer shell 3. A mounting platform 42 is arranged on the outer periphery of the inner shell 4, and a second plug hole 43 is arranged inside. The mounting platforms 42 are evenly arranged around the inner shell 4, and the mounting platforms 42 protrude from the outer periphery of the inner shell 4, and the surface of the mounting platforms 42 is flat. The inner shell is circular inside, and the inner edge is arc-shaped. The unlocking gap 8 between the mounting platform 42 and the outer shell 3 is in the shape of a space with small ends and large middle. A mounting column 41 is arranged on the mounting platform 42. The roller assembly 5 includes a first roller 51, a spring 52, and a second roller 53. The spring 52 is arranged through the mounting column 41. An unlocking gap 8 is provided between the outer shell 3 and the mounting platform 42. The first roller 51 and the second roller 53 are installed in the unlocking gap 8. The diameters of the first roller 51 and the second roller 53 are larger than the minimum unlocking gap between the outer shell 3 and the mounting platform 42. The unlocking member 6 is provided with a first insertion hole 62 on the front and an unlocking piece 61 on the back. The unlocking piece 61 is located in the unlocking gap 8, and the unlocking piece contacts the first roller or the second roller.
[0038] like Figures 2 to 4 As shown, since the inner part of the outer shell is in an arc-shaped structure and the surface of the mounting platform is in a flat shape, after the inner shell is installed inside the outer shell, the unlocking gap formed between the inner shell and the outer shell is in a shape of small at both ends and large in the middle. The first roller and the second roller are located in the space of the unlocking gap, and the spring is located between the first roller and the second roller. When the inner shell is rotated, the inner shell drives the spring to rotate together, and the spring squeezes the first roller or the second roller, so that the first roller or the second roller is stuck in the unlocking gap, further limiting the mutual rotation of the inner shell and the outer shell, thereby realizing the bidirectional locking function of the bearing, and the bearing at this time plays a limit locking role.
[0039] like Figure 2 and Figure 7 As shown, when unlocking is required, the unlocking member is inserted and rotated at the same time, the unlocking pieces on the back of the unlocking member are at a fixed distance from each other, and the unlocking piece is in contact and connected with the first roller and the second roller. When the unlocking member is rotated, the unlocking piece will squeeze the first roller or the second roller, so that the first roller or the second roller is always in a space larger than its own in the unlocking gap, so that the first roller and the second roller can rotate freely in the unlocking gap, so that the first roller and the second roller will not restrict the free rotation between the inner shell and the outer shell, and the bearing at this time plays a transmission role.
[0040] like Figure 1 and Figure 5 As shown, a groove 12 and a through hole 13 are provided inside the fixed shell 1, and a fixing hole 11 is provided on the periphery of the fixed shell 1, and the outer shell 3 is snap-fitted in the groove 12. The fixing nail 2 is provided in the fixing hole 11, and the fixing nail 2 is fixedly connected with the external carrier after passing through the fixing hole 11, thereby achieving the function of fixing the bearing. The fixed shell 1 and the outer shell 3 are snap-fitted and connected with each other, and a fixing column 14 is provided around the groove 12, and a fixing groove 32 is provided around the outer shell 3, and the fixing column 14 is adapted to the fixing groove 32. The through hole 13, the first plug hole 62 and the second plug hole 43 are located on the same straight line. The fixed shell facilitates the installation of the bearing, thereby meeting different application scenarios of the bearing.
[0041] like Figure 6 As shown, the mounting post 41 is provided with a mounting hole 411, and the spring 52 is clamped through the mounting hole 411. The mounting post and the spring are clamped, and the spring rotates synchronously when the inner shell rotates, so that the spring will squeeze the first roller or the second roller to the end of the mounting platform and get stuck in the unlocking gap without inserting the unlocking piece.
[0042] like Figures 8 to 10 As shown, a two-way locking bearing control device includes the above-mentioned two-way locking bearing, and also includes a rocker arm 7, wherein a first plug-in 71, a second plug-in 72 and a connecting shaft 73 are sequentially arranged in front of the rocker arm 7, wherein the first plug-in 71 is matched with the first plug hole 62, the second plug-in 72 is matched with the second plug hole 43, and the connecting shaft 73 is arranged on the second plug-in 72. The unlocking piece 61 extends into the unlocking gap 8 and contacts the first roller 51 and the second roller 53. When the rocker arm 7 is matched with the bearing, the connecting shaft 73 passes through the second plug hole 43, the first plug hole 62 and the through hole 13. A connecting hole 731 is arranged on the connecting shaft 73, and when the connecting shaft passes through the through hole, the connecting hole on the connecting shaft can pass through the pull rope of other objects, and the rocker arm is rotated, and the pull rope will be wound around the connecting shaft, thereby moving other objects. When the rocker arm is not rotating, since the rocker arm passes through the inside of the double-way locking bearing and fits with the double-way locking bearing, when the bearing is limited and locked, the rocker arm will not rotate actively, thereby ensuring that other objects will not move.
[0043] The bidirectional locking bearing disclosed in the utility model can ensure that the inner shell and the outer shell will not rotate relative to each other when not needed, thereby realizing mutual braking between the inner shell and the outer shell. When rotation is required, the first roller and the second roller are squeezed by the unlocking piece, so that the first roller and the second roller are always kept in the space in the unlocking gap where they can rotate freely, thereby realizing that the inner shell and the outer shell will not rotate relative to each other when the rocker arm is not rotated, and the rocker arm will not rotate automatically.
[0044] The bidirectional locking bearing and the control device thereof can be used in a storage frame of a Roman umbrella. When the Roman umbrella needs to be used, the swing arm is rotated to open or close the Roman umbrella. After the Roman umbrella is opened or closed to a required degree, the swing arm is stopped from being rotated, and the Roman umbrella remains in this state.
[0045] At the same time, the bidirectional locking bearing and the control device thereof of the utility model can be used as a transmission and braking component and can also be used in other limit control devices.
[0046] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.
Claims
1. A bidirectional locking bearing, characterized in that: The invention comprises an outer shell (3), an inner shell (4) is arranged inside the outer shell (3), and a roller assembly (5) is arranged between the outer shell (3) and the inner shell (4); a mounting platform (42) is arranged on the outer periphery of the inner shell (4), a second insertion hole (43) is arranged inside the inner shell (4), and a mounting column (41) is arranged on the mounting platform (42); the roller assembly (5) comprises a first roller (51), a spring (52) and a second roller (53), and the spring (52) is arranged through the mounting column (41); an unlocking gap (8) is arranged between the outer shell (3) and the mounting platform (42), and the first roller (51) and the second roller (53) are installed in the unlocking gap (8); the diameters of the first roller (51) and the second roller (53) are larger than the minimum unlocking gap between the outer shell (3) and the mounting platform (42); It also comprises an unlocking member (6), wherein the unlocking member (6) is provided with a first insertion hole (62) on the front side and an unlocking piece (61) on the back side, and the unlocking piece (61) is located in the unlocking gap (8).
2. A bidirectional locking bearing according to claim 1, characterized in that: The mounting platform (42) is arranged to protrude from the outer peripheral edge of the inner shell (4); the surface of the mounting platform (42) is planar, and the unlocking gap (8) between the mounting platform (42) and the outer shell (3) is in the shape of a space with small ends and a large middle.
3. A bidirectional locking bearing according to claim 2, characterized in that: The mounting column (41) is provided with a mounting hole (411), and the spring (52) passes through the mounting hole (411) and is engaged therewith.
4. A bidirectional locking bearing according to claim 2, characterized in that: An opening groove (31) is provided in the outer shell (3), and the inner shell (4) is installed in the opening groove (31).
5. A bidirectional locking bearing according to any one of claims 1 to 4, characterized in that: It also comprises a fixing shell (1), wherein a groove (12) and a through hole (13) are provided inside the fixing shell (1), a fixing hole (11) is provided on the outer periphery of the fixing shell (1), and the outer shell (3) is snap-fitted and arranged in the groove (12).
6. A bidirectional locking bearing according to claim 5, characterized in that: It also comprises a fixing nail (2), wherein the fixing nail (2) passes through the fixing hole (11) and is fixedly connected to an external carrier.
7. A bidirectional locking bearing according to claim 5, characterized in that: The groove (12) is surrounded by fixing columns (14), the outer shell (3) is surrounded by fixing grooves (32), and the fixing columns (14) are matched with the fixing grooves (32); the through hole (13), the first plug hole (62) and the second plug hole (43) are located on the same straight line.
8. A bidirectional locking bearing control device, characterized in that: The invention comprises the bearing as claimed in claim 6 or 7, and further comprises a rocker arm (7), wherein a first plug-in (71), a second plug-in (72) and a connecting shaft (73) are sequentially arranged in front of the rocker arm (7), wherein the first plug-in (71) is matched with the first socket (62), the second plug-in (72) is matched with the second socket (43), and the connecting shaft (73) is arranged on the second plug-in (72).
9. A bidirectional locking bearing control device as claimed in claim 8, characterized in that: The unlocking piece (61) extends into the unlocking gap (8) and contacts the first roller (51) and the second roller (53).
10. A bidirectional locking bearing control device as claimed in claim 8, characterized in that: The connecting shaft (73) is provided with a connecting hole (731); when the rocker arm (7) is matched with the bearing, the connecting shaft (73) passes through the second plug hole (43), the first plug hole (62) and the through hole (13).