Hanging wheel and door body system

Abstract

The utility model relates to a hanging wheel and a door body system. The hanging wheel comprises a wheel seat with a rolling wheel, and a vertical hanging hole, an adjusting hole communicated with the hanging hole and a locking hole communicated with the adjusting hole are formed in the wheel seat; the worm gear is rotatably arranged in the hoisting hole and is limited to move in the vertical direction; the worm is rotatably arranged in the adjusting hole and is meshed with the worm gear; the locking piece is arranged in the locking hole, abuts against the worm and is used for limiting the worm to rotate around the axis of the worm. According to the hanging wheel, by arranging a related locking structure, rotation of the worm wheel is prevented, the height position of the hanging wheel is guaranteed, and the precision and reliability of height adjustment are guaranteed. Meanwhile, the lifting, adjusting and locking functions are integrated in one wheel seat, so that the whole lifting wheel is more compact, and the requirements of extremely narrow door system array products can be better met.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to a hanging wheel and door body system. Background Art

[0002] During the development of the upper hanging pulley used in sliding doors, it was discovered that adjusting the height of the upper hanging pulley presented certain difficulties. For example, due to the narrow gap between the upper track and the door leaf, it was difficult to reach the wrench to adjust the door leaf's height, making it very difficult to adjust the upper hanging pulley's height. To address this issue, the applicant developed a solution that utilizes a worm gear meshing structure to change the direction of rotation, thereby solving the problem of vertical adjustment of the upper hanging pulley. For details, please refer to the solution in the patent application number CN215108237U.

[0003] However, in actual use, it was found that the solution using worm gears had the problem that since the movable door needs to be opened and closed, the vibration generated during the opening and closing process will be transmitted to the upper hanging pulley assembly. With the changes in vibration and load during long-term use, relying solely on a simple connection between the worm gears can easily cause the worm gear to rotate, thereby affecting the accuracy and reliability of the height adjustment. There is room for improvement. Utility Model Content

[0004] In order to overcome at least one of the above-mentioned defects of the prior art, according to one aspect of the present invention, a hanging wheel is provided, comprising:

[0005] A wheel seat with a roller, wherein the wheel seat is provided with a vertical lifting hole, an adjustment hole connected to the lifting hole, and a locking hole connected to the adjustment hole;

[0006] a worm gear rotatably disposed in the hoisting hole and restricted from moving in a vertical direction;

[0007] a worm, rotatably disposed in the adjustment hole and meshing with the worm wheel;

[0008] The locking member is arranged in the locking hole and abuts against the worm, and is used to limit the worm from rotating around its own axis.

[0009] In one embodiment of the present application, the locking member is a locking nut, and the locking nut is threadedly connected to the locking hole.

[0010] In one embodiment of the present application, the locking hole extends inward from the bottom of the wheel seat to communicate with the adjustment hole.

[0011] In one embodiment of the present application, the locking hole is obliquely arranged in the wheel seat and is inclined downward in a direction away from the lifting hole.

[0012] In one embodiment of the present application, a limit block is clamped in the hoisting hole, and the limit block is arranged to abut against the top of the worm wheel to limit the movement of the worm wheel in the vertical direction;

[0013] The inner side wall of the lifting hole is inwardly concave with a clamping groove, and the circumferential outer wall of the limiting block is protruded with a clamping block, and the clamping block is clamped in the clamping groove.

[0014] In one embodiment of the present application, the worm includes an engaging portion engaged with the worm wheel and a connecting rod segment fixed to the engaging portion, the diameter of the connecting rod segment is smaller than the diameter of the engaging portion, and the adjustment hole has hole segments respectively adapted to the diameters of the engaging portion and the connecting rod segment; the locking member abuts against the connecting rod segment of the worm.

[0015] In one embodiment of the present application, a driving portion is provided at one end of the worm away from the meshing portion, and the driving portion is provided on the outside of the wheel seat;

[0016] The driving part is cylindrical, and the diameter of the driving part is larger than the diameter of the connecting rod section.

[0017] In one embodiment of the present application, the wheel seat is assembled from two halves, and the facing surfaces of the two halves are each recessed with a hoisting half hole, an adjustment half hole, and a locking half hole;

[0018] The two hoisting half holes are used to be assembled into a hoisting hole, the two adjusting half holes are used to be assembled into an adjusting hole, and the two locking half holes are used to be assembled into a locking hole.

[0019] In one embodiment of the present application, the thickness of the portion of the wheel seat located at the roller is thinner than the thickness of the remaining portion of the wheel seat.

[0020] According to another aspect of the present application, a door system is provided, comprising the above-mentioned hanging wheel; the door system also comprises a door body and an upper track arranged on the upper side of the door body, the hanging wheel is arranged in the upper track, and the worm gear has an internal thread.

[0021] In summary, the hanging wheel and door system provided by the present invention has the following technical effects:

[0022] This hoist pulley features a locking mechanism to prevent the worm gear from rotating, thereby ensuring the hoist pulley's height position and ensuring the accuracy and reliability of height adjustment. It also integrates the hoisting, adjustment, and locking functions into a single wheel base, making the entire hoist pulley more compact and better suited to the needs of extremely narrow door series products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a hanging wheel according to an embodiment of the present invention as viewed from the bottom;

[0024] Figure 2 This is a schematic structural diagram of a hanging wheel according to an embodiment of the present invention as viewed from the top;

[0025] Figure 3 This is a cross-sectional view of the internal structure of the hanging wheel according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the decomposed state of the hanging wheel according to an embodiment of the present utility model;

[0027] Figure 5 This is a structural schematic diagram of half of the wheel seat in the hanging wheel of an embodiment of the present utility model;

[0028] Figure: 1-wheel seat, 11-half body, 111-lifting half hole, 112-adjusting half hole, 113-locking half hole, 2-lifting hole, 21-limiting step, 3-adjusting hole, 4-roller, 5-worm gear, 6-worm, 61-meshing part, 62-connecting rod section, 63-driving part, 71-locking piece, 72-locking hole, 8-limiting block, 81-block. DETAILED DESCRIPTION

[0029] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0032] In order to better understand the inventive concept of the present utility model, the problems encountered are briefly described first.

[0033] The hanging wheel in the existing technology uses a worm gear for height adjustment. In actual use, it is found that since the movable door needs to be opened and closed, the vibration generated during the opening and closing process will be transmitted to the upper hanging pulley assembly. With the vibration and load changes in long-term use, relying only on a simple connection between the worm gear and the worm gear will easily cause the worm gear to rotate, thereby affecting the accuracy and reliability of the height adjustment.

[0034] Therefore, please refer to Figure 1-Figure 5 The hanging wheel of the present invention is provided with a locking member 71 to prevent the worm gear 5 from rotating, thereby ensuring the accuracy and reliability of height adjustment.

[0035] The following combination Figure 1-Figure 5 The specific structure of this hanging wheel is described.

[0036] In some embodiments, the hanging wheel specifically includes a wheel seat 1 with a roller 4, a worm wheel 5, a worm 6 and a locking piece 71; a vertical lifting hole 2, an adjustment hole 3 connected to the lifting hole 2 and a locking hole 72 connected to the adjustment hole 3 are provided in the wheel seat 1; the worm wheel 5 is rotatably provided in the lifting hole 2 and is restricted from moving in the vertical direction; the worm 6 is rotatably provided in the adjustment hole 3 and engages with the worm wheel 5; the locking piece 71 is provided in the locking hole 72 and abuts against the worm 6, for limiting the rotation of the worm 6 around its own axis.

[0037] In actual work, the structure of the worm wheel 5 and the worm 6 is specifically utilized to achieve height adjustment. When the height is adjusted to a suitable position, the locking member 71 set in the locking hole 72 abuts against the worm 6, limiting the rotation of the worm 6 around its own axis, thereby preventing the worm wheel 5 from rotating, thereby ensuring the height position of the hanging wheel.

[0038] Furthermore, during use, the hanging wheel may be affected by various external forces, such as vibration and impact, which may disrupt the original static equilibrium state of the worm gear. Without the additional locking member 71, the worm gear 5 is likely to rotate, thereby changing the height of the hanging wheel. The presence of the locking member 71 can effectively prevent the worm 6 from rotating around its own axis. Since the worm 6 and the worm wheel 5 are meshed, by limiting the rotation of the worm 6, it can also act on the worm wheel 5 to limit the rotation of the worm gear 5, ensuring that the hanging wheel can remain stable after being adjusted to a specific height and will not experience unexpected height changes.

[0039] At the same time, in some application scenarios that require high height precision, such as the lifting of precision instruments and equipment, the installation of doors and windows at a specific height, etc., the locking member 71 can ensure that the lifting wheel always remains at an accurate height position, providing protection for the normal operation of the equipment or the good use of doors and windows.

[0040] In addition, the lifting wheel is also integrated with a lifting hole 2, an adjustment hole 3 and a locking hole 72 and workpieces related to the three hole structures on the wheel seat 1. This design integrates the lifting, adjustment and locking functions into one wheel seat 1, making the entire lifting wheel more compact, avoiding the problems of large space occupation and complex connection caused by the scattered setting of various functional components. Especially in places where installation space is limited, it can better adapt to environmental requirements. For example, it can be better used in extremely narrow door body series products.

[0041] In summary, the present invention provides a locking mechanism to prevent the worm gear 5 from rotating, thereby ensuring the height position of the hanging wheel and, in turn, ensuring the accuracy and reliability of height adjustment. Furthermore, the hoisting, adjustment, and locking functions are integrated into a single wheel base 1, making the entire hanging wheel more compact and better suited to the needs of extremely narrow door series products.

[0042] In some embodiments, the specific method for adjusting the height, for example, is to use the matching structure of the worm gear 5 and the worm 6 to adjust the door body of the movable door. In actual assembly, a hanging piece will be fixed on the door body, and the hanging piece and the worm gear 5 are threadedly connected. Therefore, the worm gear 5 can be driven to rotate by rotating the worm 6, and the principle of spiral transmission can be used to realize the movement of the door body in the vertical direction, thereby realizing the height adjustment of the door body.

[0043] In some embodiments, locking member 71 is a locking nut that is threadedly connected to locking hole 72. To restrict rotation of worm 6 about its own axis, the locking nut is rotated so that it advances along the threads within locking hole 72 toward worm 6. As the locking nut continues to be screwed in, the end face of the locking nut gradually approaches and eventually abuts against worm 6, preventing rotation of worm 6 through friction and pressure generated between the nut and worm 6.

[0044] The purpose of this arrangement is that, because the lock nut itself has a certain self-locking property, it can maintain the locking state of the worm 6 under environments such as vibration and impact, preventing the worm 6 from loosening due to external forces; and, through the threaded connection, it can provide a stable and reliable locking force, effectively limiting the rotation of the worm 6. At the same time, the production cost of the lock nut is relatively low and it is easy to obtain. Using a lock nut as the locking member 71 in the hanging pulley does not significantly increase the cost of the product, and has a high cost-effectiveness.

[0045] In some other embodiments, the locking member 71 may be a rubber column that is interference fit with the locking hole 72. When in use, the rubber column is inserted into the locking hole 72 until it finally abuts against the worm 6. The friction and pressure generated between the rubber column and the worm 6 can also prevent the worm 6 from rotating.

[0046] In some embodiments, a locking hole 72 extends inward from the bottom of the wheel seat 1 to communicate with the adjustment hole 3. When the worm 6 needs to be locked, a locking member 71 (such as a locking nut) is placed into the locking hole 72 from the bottom of the wheel seat 1 and then screwed inward along the locking hole 72. Because the locking hole 72 extends inward from the bottom of the wheel seat 1 and communicates with the adjustment hole 3, as the locking member 71 is screwed in, its end gradually approaches and eventually abuts against the worm 6 located in the adjustment hole 3, exerting pressure and friction to limit the rotation of the worm 6 about its own axis.

[0047] This arrangement is designed to facilitate the locking process by allowing operation from the bottom of the wheel base 1. During installation and maintenance, operators can more easily access the locking hole 72 to install, adjust, and remove the locking member 71, eliminating the need to operate in complex locations. This reduces operational difficulty. Furthermore, providing the locking hole 72 from the bottom does not damage the exterior of the wheel base 1, enhancing the overall appearance of the hoisting wheel.

[0048] In some embodiments, the locking hole 72 is tilted in the wheel seat 1 and tilted downward in a direction away from the hanging hole 2. Since in actual assembly, the hanging wheel will be specifically assembled to the upper side of the top of the door body, the existence of the door body will to some extent hinder the user from adjusting the locking member 71 in the locking hole 72. Therefore, in order to facilitate the user to better operate the locking member 71 in the hanging wheel, the locking hole 72 is tilted downward, which means that the locking member 71 assembled in the locking hole 72 will also be tilted downward accordingly, so that the user can better operate the locking member 71, making it more convenient to operate.

[0049] It should be noted that the inclination angle between the locking hole 72 and the vertical direction can be set to β. In practical applications, the larger the inclination angle β of the locking hole 72, the better. This means that the more the locking hole 72 is tilted toward the outside, the easier it is for the user to operate.

[0050] In some embodiments, the adjustment hole 3 is tilted in the wheel seat 1 and tilted downward in a direction away from the hanging hole 2. Since in actual assembly, the hanging wheel will be specifically assembled to the upper side of the top of the door body, the existence of the door body will also hinder the user from adjusting the worm 6 in the adjustment hole 3 to a certain extent. Therefore, in order to facilitate the user to better operate the worm 6 in the hanging wheel, the adjustment hole 3 is tilted downward, which means that the worm 6 assembled in the adjustment hole 3 will also be tilted downward accordingly, so that the user can better operate the driving part 63 on the worm 6, making it more convenient to operate.

[0051] In some embodiments, a limiting step 21 is provided in the hanging hole 2, and the limiting step 21 abuts against the bottom of the worm gear 5. Since the worm gear 5 is specifically assembled in the hanging hole 2, in order to better support the worm gear 5 and prevent the worm gear 5 from falling out of the hanging hole 2, the limiting step 21 for supporting the worm gear 5 is provided in the hanging hole 2 to better support the worm gear 5 to rotate stably, effectively improving the overall structural stability.

[0052] In some embodiments, a limit block 8 is mounted within the hoisting hole 2. The limit block 8 abuts against the top of the worm gear 5 to limit the vertical movement of the worm gear 5. Since the worm gear 5 cannot move vertically when driven by the worm 6 to achieve the door height adjustment function, the limit block 8 is mounted within the hoisting hole 2. By setting the limit block 8 to limit the vertical movement of the worm gear 5, this arrangement not only achieves the door height adjustment function, but also makes the structure more compact, effectively controls the overall volume, and is better suited for use on extremely narrow doors.

[0053] In one specific embodiment, the inner side wall of the lifting hole 2 is provided with an inwardly recessed slot 22, and the circumferential outer wall of the limiting block 8 is provided with a protruding block 81, which is engaged in the slot 22. This arrangement realizes the limiting function of the limiting block 8 through the cooperation between the block 81 and the slot 22, resulting in a simple structure, easy manufacturing, and reduced manufacturing difficulty. At the same time, the structure is compact and can effectively control the overall volume.

[0054] In some embodiments, the worm 6 includes a meshing portion 61 meshing with the worm wheel 5 and a connecting rod segment 62 fixed to the meshing portion 61, the diameter of the connecting rod segment 62 is smaller than the diameter of the meshing portion 61, and the adjustment hole 3 has hole segments that are respectively adapted to the diameters of the meshing portion 61 and the connecting rod segment 62; the locking member 71 abuts against the connecting rod segment 62 of the worm 6.

[0055] In order to be well applied to extremely narrow door bodies, the structures of the worm 6 and the wheel seat 1 are improved, that is, after the meshing portion 61 of the worm 6 is ensured to have sufficient structural strength to mesh with the worm wheel 5, the connecting rod segment 62 of the worm 6 is refined so that the diameter of the connecting rod segment 62 of the worm 6 is smaller than the meshing portion 61 of the worm 6; and the hole segment of the adjusting hole 3 on the wheel seat 1 will be adapted according to the diameters of the meshing portion 61 and the connecting rod segment 62, that is, the hole segment of the adjusting hole 3 for assembling the meshing portion 61 is set as the meshing hole segment, and the aperture at the meshing hole segment will be larger, and the hole segment of the adjusting hole 3 for the connecting rod segment 62 is set as the connecting rod hole segment, and the aperture at the connecting rod hole segment will be smaller, which is also relatively refined. With this arrangement, a narrowed area will also be formed on the wheel seat 1 relative to the above-mentioned refined area.

[0056] It should be noted that, since the worm 6 in the height adjustment structure of the existing hanging wheel structure has a relatively thick structure, and the wheel seat 1 of the existing hanging wheel structure itself also requires a certain thickness and the thickness of the roller 4 installed on the side of the wheel seat 1, the existing hanging wheel structure itself occupies a large space. In this regard, the hanging wheel of the present application refines the worm 6 and narrows the position corresponding to the wheel seat 1. During actual assembly, the roller 4 will be specifically assembled in the narrowed area on the wheel seat 1, so that the hanging wheel of the present application is well narrowed as a whole and can be well applied to extremely narrow door bodies.

[0057] For example, the thickness of the portion of the wheel seat 1 located near the roller 4 is thinner than the rest of the wheel seat 1. This design allows the thickness of the wheel seat 1 located near the roller 4 to be thinner than the rest of the wheel seat 1, effectively reducing the thickness of this portion of the wheel seat 1 for better application in extremely narrow doors. Furthermore, by reducing the thickness of the wheel seat 1 near the roller 4, material usage can be reduced. This can significantly reduce material costs and improve economic efficiency in large-scale production.

[0058] In summary, this hanging wheel is narrowed by refining the connecting rod section 62 of the worm 6 and the hole section on the wheel seat 1 that is assembled with the connecting rod section 62 of the worm 6, so that it can be better applied to extremely narrow door bodies, which can greatly increase the aesthetics of the extremely narrow door body series products.

[0059] It should also be noted that after the height adjustment is completed, the locking member 71 abuts the connecting rod segment 62 of the worm 6, and by applying pressure to the connecting rod segment 62, it limits the rotation of the worm 6 about its own axis, preventing the worm 6 from accidentally rotating and causing the worm wheel 5 to move, thereby fixing the height position of the hanging pulley. The purpose of this arrangement is that the locking member 71 abuts the connecting rod segment 62 with a smaller diameter, which can better concentrate the locking force. Since the surface area of ​​the connecting rod segment 62 is relatively small, the pressure applied by the locking member 71 can be more effectively transmitted to the worm 6, thereby improving the locking effect and preventing the worm 6 from loosening.

[0060] In some embodiments, a drive portion 63 is provided at one end of the worm 6, away from the meshing portion 61, and is disposed outside the wheel base 1. A user can apply a tool to the drive portion 63, which in turn drives the entire worm 6 to rotate, thereby driving the worm wheel 5 to control the vertical movement of the door, thereby achieving height adjustment. This configuration allows the user to more conveniently and quickly operate the worm 6, reducing operational difficulty.

[0061] Specifically, the driving portion 63 is cylindrical, and the diameter of the driving portion 63 is larger than the diameter of the connecting rod section 62. This arrangement can increase the effective area of ​​the driving portion 63, so that the user can more conveniently operate the worm 6 through a tool.

[0062] Specifically, the driving portion 63 is provided with a slot or a cross slot. Since a slotted screwdriver or a cross screwdriver is usually used for operation, the driving portion 63 can be specifically provided with a slot or a cross slot, which can make it more convenient for users to use tools for operation.

[0063] In some embodiments, the wheel seat 1 is assembled from two halves 11, and the facing surfaces of the two halves 11 are each recessed with a lifting half hole 111, an adjustment half hole 112, and a locking half hole 113; the two lifting half holes 111 are used to assemble into a lifting hole 2, the two adjustment half holes 112 are used to assemble into an adjustment hole 3, and the two locking half holes 113 are used to assemble into a locking hole 72.

[0064] During manufacturing, the meshing portion 61 and the connecting rod segment 62 of the worm 6 can be integrated, for example, integrally molded. Since the meshing portion 61 and the connecting rod segment 62 are integrally molded and have different diameters, they cannot be directly assembled into place through the adjustment hole 3 of the wheel seat 1.

[0065] To this end, the above-mentioned solution of assembling the wheel seat 1 from two halves 11 can be specifically adopted for preparation and assembly. At the same time, since the connecting rod segment 62 of the worm 6 has been refined, if the wheel seat 1 were still a whole, assembling the worm 6 into the wheel seat 1 would greatly increase the assembly difficulty. Therefore, in order to facilitate the overall assembly and reduce the assembly difficulty, the wheel seat 1 is divided into two halves for assembly. Therefore, the two halves 11 are each machined with a lifting half hole 111, an adjustment half hole 112, and a locking half hole 113. Therefore, during assembly, the worm wheel 5, the worm 6 and the locking piece 71 can be respectively assembled into the lifting half hole 111, the adjustment half hole 112 and the locking half hole 113 in one of the half bodies 11. After the two half bodies 11 are assembled together, the two lifting half holes 111 can be assembled into the lifting hole 2, the two adjustment half holes 112 can be assembled into the adjustment hole 3, and the two locking half holes 113 are used to assemble into the locking hole 72, and the assembly of the hanging wheel can be completed, which facilitates assembly and effectively reduces the overall assembly difficulty.

[0066] In some embodiments, the meshing portion 61 and the connecting rod segment 62 in the worm 6 can be provided separately, for example, by snap-fitting or threading. Since the meshing portion 61 and the connecting rod segment 62 are provided separately, the wheel seat 1 can be specifically a structure assembled from two halves 11 in the above-mentioned embodiment; or, in other embodiments, the wheel seat 1 can also be assembled from two halves 11, and can be specifically a complete workpiece, with the hoisting hole 2, the adjustment hole 3, and the locking hole 72 machined in the wheel seat 1. During assembly, the meshing portion 61 can be assembled from the hoisting hole 2 and then assembled into the meshing hole segment, the connecting rod segment 62 can be assembled directly from the adjustment hole 3, and then the meshing portion 61 and the connecting rod segment 62 are assembled and fixed together in the wheel seat 1; and the locking member 71 can be assembled directly from the locking hole 72 at the bottom of the wheel seat 1.

[0067] Specifically, the two halves 11 can be fixed together using bolts and nuts. Thus, when assembling the two halves 11, simply insert the bolts through the corresponding holes and screw on the nuts to complete the fixation. This operation is relatively simple, allowing for quick assembly and improved work efficiency.

[0068] The embodiment of the present invention further discloses a door system, including the above-mentioned hanging wheel. The door system also includes a door body and an upper track arranged on the upper side of the door body, the hanging wheel is arranged in the upper track, and the worm gear 5 has an internal thread.

[0069] As can be seen, the hanging wheel in this door system also has locking structures to prevent accidental rotation of the worm 6 and movement of the worm wheel 5, thereby ensuring the height position of the hanging wheel and the accuracy and reliability of height adjustment. At the same time, the lifting, adjustment and locking functions are integrated into a single wheel base 1, making the entire hanging wheel more compact and better able to meet the needs of extremely narrow door series products.

[0070] Moreover, the present door system can be specifically an extremely narrow door body, so the upper track itself will also be designed to be narrowed, and the thickness of the upper track will be narrower than that of a conventional track. Therefore, the present hanging wheel is narrowed by refining the connecting rod section 62 of the worm 6 and the hole section on the wheel seat 1 that is assembled with the connecting rod section 62 of the worm 6, so that it can be fitted into the upper track very adaptably. On the basis of being able to adjust the height of the door body, it can be better applied to extremely narrow door bodies to increase the aesthetics of the extremely narrow door body series products.

[0071] The technical means disclosed in the present invention are not limited to those disclosed in the above-mentioned embodiments, but also include technical solutions composed of any combination of the above-mentioned technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A hanging wheel, characterized in that: include: A wheel seat (1) with a roller (4), wherein a vertical hoisting hole (2), an adjustment hole (3) communicating with the hoisting hole (2), and a locking hole (72) communicating with the adjustment hole (3) are provided in the wheel seat (1); A worm wheel (5) is rotatably disposed in the hanging hole (2) and is restricted from moving in a vertical direction; a worm (6) rotatably disposed in the adjustment hole (3) and meshing with the worm wheel (5); The locking member (71) is arranged in the locking hole (72) and abuts against the worm (6) to limit the worm (6) from rotating around its own axis.

2. A hanging wheel according to claim 1, characterized in that: The locking member (71) is a locking nut, and the locking nut is threadedly connected to the locking hole (72).

3. A hanging wheel according to claim 1 or 2, characterized in that: The locking hole (72) extends inward from the bottom of the wheel seat (1) to communicate with the adjustment hole (3).

4. A hanging wheel according to claim 1 or 2, characterized in that: The locking hole (72) is arranged obliquely in the wheel seat (1) and is arranged obliquely downward in a direction away from the lifting hole (2).

5. A hanging wheel according to claim 1 or 2, characterized in that: A limiting block (8) is clamped in the hoisting hole (2), and the limiting block (8) is arranged to abut against the top of the worm wheel (5) to limit the movement of the worm wheel (5) in the vertical direction; The inner side wall of the hanging hole (2) is provided with a clamping groove (22) inwardly concavely, and the circumferential outer wall of the limit block (8) is provided with a clamping block (81) protruding therefrom, and the clamping block (81) is clamped in the clamping groove (22).

6. A hanging wheel according to claim 1 or 2, characterized in that: The worm (6) comprises a meshing portion (61) meshed with the worm wheel (5) and a connecting rod segment (62) fixed to the meshing portion (61); the diameter of the connecting rod segment (62) is smaller than the diameter of the meshing portion (61); the adjustment hole (3) comprises hole segments respectively adapted to the diameters of the meshing portion (61) and the connecting rod segment (62); and the locking member (71) abuts against the connecting rod segment (62) of the worm (6).

7. A hanging wheel according to claim 6, characterized in that: A driving portion (63) is provided at one end of the worm (6) away from the meshing portion (61), and the driving portion (63) is provided on the outside of the wheel seat (1); The driving portion (63) is cylindrical, and the diameter of the driving portion (63) is larger than the diameter of the connecting rod section (62).

8. A hanging wheel according to claim 1, 2 or 7, characterized in that: The wheel seat (1) is assembled from two half bodies (11), and the facing surfaces of the two half bodies (11) are each concavely provided with a hoisting half hole (111), an adjustment half hole (112) and a locking half hole (113); The two hoisting half holes (111) are used to assemble and form a hoisting hole (2), the two adjusting half holes (112) are used to assemble and form an adjusting hole (3), and the two locking half holes (113) are used to assemble and form a locking hole (72).

9. A hanging wheel according to claim 1, 2 or 7, characterized in that: The thickness of the portion of the wheel seat (1) located on the roller (4) is smaller than the thickness of the remaining portion of the wheel seat (1).

10. Door system, characterized in that, It comprises a hanging wheel according to any one of claims 1 to 9; the door system further comprises a door body and an upper track arranged on the upper side of the door body, the hanging wheel is arranged in the upper track, and the worm wheel (5) has an internal thread.

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