Lifting bracket and clothes drying machine

Abstract

The application discloses a lifting bracket and a clothes airing machine, which comprises a lower guide rail, a bracket main body, a suspension assembly, a fixed frame, a wire fixing frame and an adjusting piece, wherein the bracket main body comprises a positioning unit, the positioning unit is used for keeping the central axis of the bracket main body coincident with the central perpendicular line of the lower guide rail, the suspension assembly is installed at the middle position of the lower guide rail, the wire fixing frame is used for fixing a steel wire rope, the adjusting piece is connected with the fixed frame and the wire fixing frame, and the installation height of the wire fixing frame on the fixed frame can be adjusted through the adjusting piece; wherein the positioning unit comprises a first mounting hole, the fixed frame comprises a second mounting hole, the middle position of the lower guide rail is provided with a fixing bolt, and the fixing bolt penetrates through the first mounting hole and the second mounting hole to simultaneously fix the positioning unit and the suspension assembly. The installation height of the wire fixing frame is changed through the adjusting piece, the height of the fixed point of the steel wire rope can be accurately corrected, the height of the corresponding side of the lower guide rail and the clothes airing frame is adjusted, and the height imbalance problem caused by assembly errors, long-term use deformation and the like can be solved.

Description

Technical Field

[0001] This application relates to the technical field of clothes drying equipment, and more particularly to a lifting bracket and clothes drying machine. Background Technology

[0002] Existing electric clothes drying racks typically consist of two parts: a main unit and a clothes rack for drying clothes. The main unit, as the core driving component, integrates a power system and transmission mechanism. Specifically, the main unit generally contains two independent steel wire rope transmission assemblies driven by a drive motor. These two steel wire ropes hang down from the left and right ends or front and rear ends of the main unit housing and are fixedly connected to the corresponding ends of the clothes rack. When the user initiates the lifting command, the motor synchronously drives the two steel wire ropes to wind or release them through a reduction gearbox and other transmission structures, thereby realizing the electric lifting operation of the clothes rack and completing the function of drying or collecting clothes.

[0003] However, in actual production, assembly, and long-term use, the above structure is prone to the problem of inconsistent heights at both ends of the clothes rack. The specific reasons are as follows: Assembly and component precision errors: During the production assembly stage, due to limitations in processing technology, there may be slight deviations in the length and diameter of the two sets of wire ropes. At the same time, insufficient installation precision of components such as guide wheels and reels used to fix the wire ropes inside the main unit, or differences in frictional resistance of rotating components such as bearings, will cause uneven force on the two sets of wire ropes during the hanging process, which will ultimately result in different hanging lengths at the two ends of the clothes rack, forming a height difference.

[0004] Differences in tension deformation after long-term use: In daily use, electric clothes drying racks frequently bear the load of clothing weight, and the steel wire ropes repeatedly experience tensile and bending stresses during winding and unwinding. Due to potential differences in the distribution of stress points between the two sets of steel wire ropes, their elastic deformation or plastic deformation will gradually deviate after long-term use, further leading to differences in the actual effective lengths of the two sets of steel wire ropes, ultimately causing an imbalance in the height of the two ends of the clothes drying rack.

[0005] This inconsistency in height not only affects the aesthetics of the clothes drying rack, but also leads to uneven drying of clothes. It may even exacerbate the wear and tear on the main components due to long-term uneven stress, reducing the service life of the equipment. Therefore, there is an urgent need for a technical solution to solve the above problems. Utility Model Content

[0006] The purpose of this utility model embodiment is to provide a lifting bracket and clothes drying rack that can solve the above-mentioned problems existing in the prior art.

[0007] To achieve the above objectives, this application adopts the following technical solution: On the one hand, a lifting bracket is provided, comprising: Lower guide rail; The bracket body includes a positioning unit, which is used to ensure that the central axis of the bracket body coincides with the vertical line of the lower guide rail; The suspension assembly, installed at the middle position of the lower guide rail, includes a fixed frame, a wire rope fixing frame, and an adjusting component. The wire rope fixing frame is used to fix the steel wire rope, and the adjusting component connects the fixed frame and the wire rope fixing frame. The installation height of the wire rope fixing frame on the fixed frame can be adjusted by the adjusting component. The positioning unit includes a first mounting hole, the fixing frame includes a second mounting hole, and a fixing bolt is provided at the middle position of the lower guide rail. The fixing bolt passes through the first mounting hole and the second mounting hole to simultaneously fix the positioning unit and the suspension assembly.

[0008] Optionally, the fixing frame includes a vertically extending latch, and the lower guide rail is provided with a slot, wherein the latch is embedded in the slot to restrict the movement of the fixing frame along the axial direction of the fixing bolt.

[0009] Optionally, a guide rail groove is provided on the top side of the lower guide rail, the suspension assembly is installed in the guide rail groove, the positioning unit extends into the guide rail groove, and the fixing bolt extends into the guide rail groove to simultaneously connect the positioning unit and the suspension assembly.

[0010] Optionally, a third mounting hole communicating with the guide rail groove is provided on one side wall of the lower guide rail, and the fixing bolt extends into the guide rail groove through the third mounting hole.

[0011] Optionally, the fixing bolt includes a fixing rod, a threaded part, and a nut connected in sequence. A fixing member with a first threaded hole is provided in the guide rail groove. The fixing rod passes through the third mounting hole, the threaded hole, the first mounting hole, and the second mounting hole. The nut abuts against the outer side wall of the lower guide rail. The threaded part is threadedly locked with the first threaded hole to realize the fixed installation of the fixing bolt.

[0012] Optionally, a limiting step is provided in the middle of the fixed rod portion, and the limiting step abuts against the side wall of the fixed frame, so that the fixed frame abuts against the inner side wall of the guide rail groove.

[0013] Optionally, the side wall of the lower guide rail is provided with a limiting groove, and the fixing frame is provided with a limiting plate. The limiting plate is embedded in the limiting groove to restrict the movement of the fixing frame relative to the lower guide rail in the vertical direction.

[0014] Optionally, the bracket body includes several folding units, the lowest folding unit being a bottom folding unit, the bottom folding unit including two cross-hinged folding pieces, the bottom ends of the two folding pieces being slidably connected to the lower guide rail; the positioning unit includes two positioning pieces, each folding piece being hinged to one positioning piece, the first mounting hole being provided on the positioning piece away from the end of the folding piece being hinged, and the fixing bolt passing through the first mounting hole to hinge the two positioning pieces.

[0015] Optionally, the adjusting member is rotatably mounted on the fixed frame. The adjusting member includes a threaded rod, and the wire fixing frame is provided with a second threaded hole that mates with the threaded rod. The installation height of the wire fixing frame is adjusted by rotating the adjusting member.

[0016] On the other hand, a clothes drying rack is provided, including the aforementioned lifting bracket.

[0017] The beneficial effects of this application are as follows: Based on the lifting bracket provided in this embodiment, in the suspension component structure, by adjusting the installation height of the wire rope fixing frame, the height of the wire rope fixing point can be accurately corrected, thereby adjusting the height of the lower guide rail and the corresponding side of the clothes rack, specifically solving the height imbalance problem caused by assembly errors and long-term deformation. This design ensures that clothes are dried evenly, avoiding partial contact with the ground for contamination or incomplete drying, significantly improving user convenience and satisfaction. In addition, the innovative design of synchronous fixing of the positioning unit and the suspension component with a single fixing bolt achieves the integrated effect of "one bolt for double fixing," eliminating the need for separate fixing structures for the two components, reducing the number of connecting parts, simplifying the overall structure of the lower guide rail area, and reducing the complexity and time cost of production and assembly. At the same time, this integrated fixing method makes later inspection and maintenance more convenient, requiring only the removal of a single fixing bolt to complete the disassembly and assembly of related components, reducing maintenance difficulty and time costs. Attached Figure Description

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the lifting bracket described in the embodiments of this application; Figure 2 This is an exploded view of the lifting bracket described in the embodiments of this application; Figure 3 This is a cross-sectional view of the bottom structure of the lifting bracket described in the embodiment of this application; Figure 4 This is a schematic diagram of the bottom structure of the lifting bracket described in this application embodiment after the lower guide rail is hidden; Figure 5 for Figure 4 An exploded view of the structure shown. Figure 6 This is a schematic diagram of the fixing bolt described in the embodiment of this application; Figure 7 This is a schematic diagram of the suspension assembly described in the embodiments of this application; Figure 8 This is an exploded view of the suspension assembly described in an embodiment of this application.

[0020] In the picture: 1. Bracket body; 11. Folding unit; 111. Folding piece; 112. Slide; 12. Positioning unit; 121. Positioning piece; 122. First mounting hole; 2. Lower guide rail; 21. Guide rail groove; 22. Limiting groove; 3. Suspension assembly; 31. Fixing frame; 311. Vertical plate; 3111. Second mounting hole; 312. Limiting plate; 313. Tongue; 314. Supporting horizontal plate; 315. Wire hole; 32. Wire fixing frame; 321. Wire clamping groove; 322. Second threaded hole; 33. Adjusting component; 331. Threaded rod; 332. Screw cap; 34. Snap ring; 4. Steel wire rope; 41. Rope end; 5. Fixing bolt; 51. Nut; 52. Threaded part; 53. Fixing rod part; 531. Limiting step; 6. Fixing component. Detailed Implementation

[0021] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] Existing electric clothes drying racks typically consist of two parts: a main unit and a clothes rack for drying clothes. The main unit, as the core driving component, integrates a power system and transmission mechanism. Specifically, the main unit generally contains two independent steel wire rope transmission assemblies driven by a drive motor. These two steel wire ropes hang down from the left and right ends or front and rear ends of the main unit housing and are fixedly connected to the corresponding ends of the clothes rack. When the user initiates the lifting command, the motor synchronously drives the two steel wire ropes to wind or release them through a reduction gearbox and other transmission structures, thereby realizing the electric lifting operation of the clothes rack and completing the function of drying or collecting clothes.

[0025] However, in actual production, assembly, and long-term use, the above structure is prone to the problem of inconsistent heights at both ends of the clothes rack. The specific reasons are as follows: Assembly and component precision errors: During the production assembly stage, due to limitations in processing technology, there may be slight deviations in the length and diameter of the two sets of wire ropes. At the same time, insufficient installation precision of components such as guide wheels and reels used to fix the wire ropes inside the main unit, or differences in frictional resistance of rotating components such as bearings, will cause uneven force on the two sets of wire ropes during the hanging process, which will ultimately result in different hanging lengths at the two ends of the clothes rack, forming a height difference.

[0026] Differences in tension deformation after long-term use: In daily use, electric clothes drying racks frequently bear the load of clothing weight, and the steel wire ropes repeatedly experience tensile and bending stresses during winding and unwinding. Due to potential differences in the distribution of stress points between the two sets of steel wire ropes, their elastic deformation or plastic deformation will gradually deviate after long-term use, further leading to differences in the actual effective lengths of the two sets of steel wire ropes, ultimately causing an imbalance in the height of the two ends of the clothes drying rack.

[0027] This inconsistency in height not only affects the aesthetics of the clothes drying rack, but also leads to uneven drying of clothes. It may even exacerbate the wear and tear on the main components due to long-term uneven stress, reducing the service life of the equipment. Therefore, there is an urgent need for a technical solution to solve the above problems.

[0028] To overcome the above technical problems, combined with Figures 1-3 This application provides a lifting bracket that can be applied to a clothes drying rack. For ease of understanding, the structure of the clothes drying rack is described below: The clothes drying rack includes a main unit and a clothes rack. The main unit is equipped with two independent steel wire rope transmission assemblies 4 driven by a drive motor. These two sets of steel wire ropes 4 hang downwards from the left and right ends or front and rear ends of the main unit housing and are fixedly connected to the corresponding ends of the clothes rack. To maintain the stability of the clothes rack, a lifting bracket is installed between the main unit and the clothes rack. The presence of the lifting bracket ensures that the clothes rack remains stable during lifting, preventing clothes from falling due to swaying of the clothes rack. The lifting bracket is generally a scissor-type telescopic structure, which includes an upper guide rail, a bracket body 1, and a lower guide rail 2. The upper guide rail is fixedly connected to the main unit, and the lower guide rail 2 is fixedly connected to the clothes rack. The upper and lower ends of the bracket body 1 are slidably connected to the upper guide rail and the lower guide rail 2, respectively. With the support of the bracket body 1, the upper guide rail and the lower guide rail 2 can always remain parallel during the lifting and lowering of the clothes rack, thus maintaining the stability of the clothes rack.

[0029] In the specific structure of the lifting bracket in this embodiment, the bracket body 1 includes a positioning unit 12, which is used to ensure that the central axis of the bracket body 1 coincides with the vertical line of the lower guide rail 2.

[0030] Among them, the positioning unit 12, as a key structural component of the lifting bracket, is designed to address the stability risks of the scissor-type telescopic structure during dynamic operation, providing a precise geometric constraint solution. The specific mechanism of action is as follows: In traditional scissor-type telescopic structures, the bracket body 1 and the lower guide rail 2 are slidably connected. Two sliding seats at the bottom of the bracket body 1 slide freely along the lower guide rail 2 to achieve the telescopic function. When the bracket body 1 extends, the two sliding seats gradually move closer to each other. At this time, the distance between the connection point of the lower guide rail 2 and the bracket body 1 decreases, resulting in a weakening of the lateral constraint of the overall structure. This structural characteristic makes the lower guide rail 2 (along with the clothes rack) prone to lateral displacement relative to the bracket body 1. This lateral slippage is more pronounced when the weight of the clothes is uneven or when subjected to external disturbances, directly affecting the stability of the clothes dryer's operation. The positioning unit 12 in this embodiment constructs a rigid spatial constraint relationship through a unique geometric positioning design: by ensuring that the central axis of the bracket body 1 always coincides with the perpendicular bisector of the lower guide rail 2 (in a horizontal state), a fixed spatial correspondence is formed between the center position of the lower guide rail 2 and the central axis of the bracket body 1. Regardless of how close or far the two sliding seats are, the center point of the lower guide rail 2 is always constrained on the central axis of the bracket body 1, fundamentally eliminating the possibility of lateral slippage.

[0031] Optionally, the positioning unit 12 can be implemented using two sets of connecting rod assemblies of equal length, symmetrically distributed on both sides of the central axis of the bracket body 1. Each set of connecting rod assemblies consists of two rods of the same length connected by hinges to form a parallelogram structure. One end is hinged to the middle of the bracket body 1, and the other end is hinged to a fixed fulcrum on the lower guide rail 2. The two fixed fulcrums are symmetrically distributed about the perpendicular bisector of the lower guide rail 2. When the bracket body 1 extends or retracts, the two sets of connecting rod assemblies move symmetrically and synchronously. Through the geometric properties of the parallelogram, the central axis of the bracket body 1 is forced to coincide with the perpendicular bisector of the lower guide rail 2. Alternatively, the positioning unit 12 consists of two elastic springs and a central positioning block. The central positioning block is fixed at the midpoint of the lower guide rail 2. One end of each of the two springs is connected to the sliding seats on both sides of the bracket body 1, and the other end is connected to the central positioning block. The elastic coefficients and initial lengths of the two springs are exactly the same. During the extension and retraction of the bracket body 1, the displacement of the sliding seats on both sides generates symmetrical tension through the springs, forming a dynamic balance. This ensures that the bracket body 1 always tends to return to the center position, thereby maintaining the coincidence of the central axis with the vertical line of the lower guide rail 2. This solution has a simple structure, low cost, and a certain buffering and shock absorption effect.

[0032] In addition, the lifting bracket in this embodiment also includes a suspension assembly 3, which is installed at the middle position of the lower guide rail 2. It includes a fixed frame 31, a wire fixing frame 32, and an adjusting member 33. The wire fixing frame 32 is used to fix the steel wire rope 4. The adjusting member 33 connects the fixed frame 31 and the wire fixing frame 32. The installation height of the wire fixing frame 32 on the fixed frame 31 can be adjusted by the adjusting member 33.

[0033] The suspension assembly 3, installed in the middle of the lower guide rail 2, is the core component for adjusting the height of the clothes rack. The fixing bracket 31 is fixed to the lower guide rail 2, serving as the installation base for the entire suspension assembly 3. The cable fixing bracket 32 ​​is used to fix the steel wire rope 4 hanging from the main unit. The connection between the cable fixing bracket 32 ​​and the steel wire rope 4 is designed with anti-slip and wear-resistant properties to ensure that the steel wire rope 4 does not slip or wear excessively under stress. The adjusting component 33 connects the fixing bracket 31 and the cable fixing bracket 32, and is the key structure for achieving height adjustment. It can be adjusted by thread, snap, or sliding groove.

[0034] The suspension assembly 3 adjusts the installation height of the cable tie 32 relative to the fixed frame 31 via the adjusting component 33, thereby adjusting the height of the clothes rack. When the clothes rack has uneven heights at both ends, since the cable tie 32 is directly fixed to the steel wire rope 4, adjusting the height of the cable tie 32 will synchronously change the height of the fixing point of the steel wire rope 4. This height change will be transmitted to the lower guide rail 2, causing the corresponding side of the clothes rack connected to the lower guide rail 2 to change height, thus accurately correcting the height difference between the two ends of the clothes rack.

[0035] Regarding the height adjustment of the suspension component 3, optionally, the adjusting component 33 adopts a bolt and nut combination structure. The fixing frame 31 has a mounting hole with internal threads, and the cable holder 32 has a through hole that matches the bolt. After the bolt passes through the through hole of the cable holder 32, it connects with the internal thread hole of the fixing frame 31. By rotating the bolt, the position of the cable holder 32 on the bolt can be changed, thereby adjusting the height of the cable holder 32. Alternatively, the fixing frame 31 has multiple slots distributed along the height direction, and the cable holder 32 has elastic buckles that match the slots. The adjusting component 33 is a buckle structure on the cable holder 32. By engaging the buckles into slots of different heights, the height of the cable holder 32 can be adjusted in a stepped manner. Alternatively, the adjusting component 33 consists of a meshing gear and a rack. The rack is fixedly installed along the height direction of the fixed frame 31, and the gear is installed on the wire fixing frame 32 and meshes with the rack. A locking knob is provided to fix the position of the gear. When the gear is rotated, the wire fixing frame 32 will move up and down along the rack to achieve height adjustment. After adjustment, the gear is fixed by the locking knob to prevent position change.

[0036] In a further embodiment, the positioning unit 12 includes a first mounting hole 122, the fixing frame 31 includes a second mounting hole 3111, and a fixing bolt 5 is provided at the middle position of the lower guide rail 2. The fixing bolt 5 passes through the first mounting hole 122 and the second mounting hole 3111 to simultaneously fix the positioning unit 12 and the suspension assembly 3.

[0037] In this embodiment, regarding structural simplification, a single fixing bolt 5 simultaneously secures two key components, eliminating the need for separate fixing structures for the positioning unit 12 and the suspension assembly 3. This reduces the number of connectors, fasteners, and other parts, resulting in a simpler and more compact overall structure in the lower guide rail 2 area and lowering assembly complexity. The reduction in the number of parts directly lowers raw material procurement and manufacturing costs. Simultaneously, the simplified assembly process shortens production time, improves assembly efficiency, further reduces overall production costs, and makes the product more competitive in the market.

[0038] In summary, based on the scheme of this embodiment, in the structure of the suspension component 3, by adjusting the installation height of the wire rope 4 fixing point by adjusting the fixing bracket 32, the height of the fixing point of the wire rope 4 can be accurately corrected, thereby adjusting the height of the lower guide rail 2 and the corresponding side of the clothes rack, specifically solving the height imbalance problem caused by assembly errors and deformation due to long-term use. This design ensures that clothes are dried evenly, avoiding the situation where some clothes come into contact with the ground and become contaminated or are not completely dried, significantly improving the user's convenience and satisfaction. In addition, the innovative design of the positioning unit 12 and the suspension component 3 being simultaneously fixed by a single fixing bolt 5 achieves the integrated effect of "one bolt for double fixation," eliminating the need to set up separate fixing structures for the two components, reducing the number of connecting parts, simplifying the overall structure of the lower guide rail 2 area, and reducing the complexity and time cost of production and assembly. At the same time, this integrated fixing method makes later inspection and maintenance more convenient, requiring only the removal of a single fixing bolt 5 to complete the disassembly and assembly of related components, reducing maintenance difficulty and time costs.

[0039] In one embodiment, combined with Figures 3-4 The fixing frame 31 includes a vertically extending latch 313, and the lower guide rail 2 is provided with a slot. The latch 313 is embedded in the slot to restrict the movement of the fixing frame 31 along the axial direction of the fixing bolt 5.

[0040] In this embodiment, the fixing frame 31 has an integrally formed or rigidly connected vertically extending latch 313 structure. The latch 313 is sheet-like or block-like, possessing a certain structural strength and rigidity. The lower guide rail 2 has a corresponding slot that precisely matches the shape and size of the latch 313, with a depth matching the length of the latch 313, forming a concave-convex fit connection structure. When the fixing frame 31 is simultaneously fixed to the lower guide rail 2 by the fixing bolt 5 and the positioning unit 12, the latch 313 is precisely embedded in the slot, forming a double constraint on the fixing frame 31 together with the fixing bolt 5. The fitting structure of the latch 313 and the slot forms an axial limit through the rigid contact of the contact surfaces. When the fixing frame 31 attempts to move axially along the fixing bolt 5, the side of the latch 313 will tightly fit against the inner wall of the slot, generating a reverse constraint force to counteract the displacement tendency and ensure the positional stability of the fixing frame 31 in the axial direction. Meanwhile, the fixing bolt 5 provides radial fixing, which complements the axial limiting of the slot of the latch 313, together firmly locking the fixing bracket 31 onto the lower guide rail 2.

[0041] Therefore, the engagement of the latch 313 and the slot effectively eliminates the movement gap of the fixing bracket 31 along the axial direction of the fixing bolt 5, avoids the positional displacement of the cable holder 32 caused by axial displacement, ensures the stability and reliability of the adjustment reference of the suspension assembly 3, and improves the accuracy of height adjustment.

[0042] In one embodiment, combined with Figure 2 and Figure 3The top side of the lower guide rail 2 is provided with a guide rail groove 21, the suspension assembly 3 is installed in the guide rail groove 21, the positioning unit 12 extends into the guide rail groove 21, and the fixing bolt 5 extends into the guide rail groove 21 to simultaneously connect the positioning unit 12 and the suspension assembly 3.

[0043] The guide rail groove 21 has a long, narrow groove structure that extends along the length of the lower guide rail 2 or into a specific area, with the groove opening facing upwards. Its internal dimensions are adapted to the installation requirements of the slide block 112, suspension assembly 3, and positioning unit 12 connected to the bottom of the bracket body 1. The suspension assembly 3 is installed entirely within the guide rail groove 21, with its core components, such as the fixing bracket 31, cable holder 32, and adjusting element 33, all housed within the space of the guide rail groove 21. The positioning unit 12 extends towards the guide rail groove 21 to smoothly enter it. The fixing bolt 5 also extends into the guide rail groove 21, passing sequentially through the first mounting hole 122 of the extended portion of the positioning unit 12 and the second mounting hole 3111 of the fixing bracket 31 of the suspension assembly 3. This simultaneously connects and fixes the positioning unit 12 and the suspension assembly 3, creating a stable assembly relationship between them within the guide rail groove 21.

[0044] In this embodiment, the guide rail groove 21 provides a closed installation space for the suspension assembly 3 and the positioning unit 12. The lateral constraint of its inner wall effectively restricts the lateral movement of the components. Combined with the axial fixation of the fixing bolts 5, the installation and positioning accuracy of each component is significantly improved, ensuring the precise realization of the geometric constraint function of the positioning unit 12 and the adjustment function of the suspension assembly 3. In addition, integrating the suspension assembly 3 and the positioning unit 12 into the guide rail groove 21 makes the structural layout of the lower guide rail 2 area more compact and reasonable, avoiding the space occupation and structural clutter caused by exposed components, reducing the interference of external factors on the core components, and making the overall structure simpler and more aesthetically pleasing.

[0045] In one embodiment, a third mounting hole communicating with the guide rail groove 21 is provided on one side wall of the lower guide rail 2, and the fixing bolt 5 extends into the guide rail groove 21 through the third mounting hole.

[0046] The third mounting hole provides a lateral access path for the fixing bolt 5. After the fixing bolt 5 extends into the guide rail groove 21 through this hole and completes the fixation of the positioning unit 12 and the suspension assembly 3, a rigid connection is formed from the side wall of the lower guide rail 2 to the internal components. At the same time, the position of the third mounting hole is matched with the structure of the guide rail groove 21 to ensure that the fixing bolt 5 can be accurately aligned with the first mounting hole 122 of the positioning unit 12 and the second mounting hole 3111 of the suspension assembly 3. While achieving the fixing function, it does not affect the normal operation of other components in the guide rail groove 21, such as the sliding of the slide block 112.

[0047] In this embodiment, a side-mounted installation method is adopted, which avoids the space occupied by the installation structure from the top or bottom, makes full use of the space on the side wall of the lower guide rail 2, is more suitable for the compact structural layout within the guide rail groove 21, and leaves sufficient space for the installation of other components. The third mounting hole provides a clear access position and guide for the fixing bolt 5, making it easier for assemblers to align the hole during installation and reducing assembly difficulty; at the same time, the side-mounted method facilitates tool operation, shortens assembly time, and improves assembly efficiency.

[0048] In one embodiment, reference is made to Figures 3-5 The fixing bolt 5 includes a fixing rod portion 53, a threaded portion 52, and a nut 51 connected in sequence. A fixing member 6 with a first threaded hole is provided in the guide rail groove 21. The fixing rod portion 53 passes through the third mounting hole, the threaded hole, the first mounting hole 122, and the second mounting hole 3111. The nut 51 abuts against the outer side wall of the lower guide rail 2. The threaded portion 52 is threadedly locked with the first threaded hole, thereby realizing the fixed installation of the fixing bolt 5.

[0049] A fastener 6 with a first threaded hole is provided at a corresponding position inside the guide rail groove 21. The fastener 6 can be rigidly connected to the inner wall of the guide rail groove 21 by means of clamping, welding, integral molding, or bolt pre-fixing. The internal thread parameters of the first threaded hole are precisely matched with the external thread of the threaded part 52 of the fixing bolt 5 to ensure that the two can achieve tight thread engagement. During assembly, the fixing rod part 53 passes through the third mounting hole on the side wall of the lower guide rail 2, the first threaded hole of the fastener 6, the first mounting hole 122 of the positioning unit 12, and the second mounting hole 3111 of the suspension component 3 in sequence, so that the threaded part 52 can be threadedly connected to the fastener 6, and the nut 51 abuts against the outer side wall of the lower guide rail 2 to form a complete fixing link.

[0050] In this embodiment, the precise engagement of the threaded portion 52 with the first threaded hole of the fixing member 6 forms a rigid lock. Combined with the lateral abutment constraint of the nut 51, this ensures that the fixing bolt 5 has no loosening space in either the axial or radial direction. This effectively avoids the loosening problems that easily occur with traditional snap-fit ​​or single bolt fixings, ensuring that the positioning unit 12 and suspension assembly 3 maintain a stable installation position for a long time. Simultaneously, the fixing member 6 within the guide rail groove 21 bears the main locking force, reducing the direct force exerted by the threaded portion 52 on thin-walled components such as the positioning unit 12 and suspension assembly 3, protecting core functional components from damage. The threaded connection structure is reversible; when it is necessary to repair or replace components such as the positioning unit 12 and suspension assembly 3, the fixing can be released simply by loosening the fixing bolt 5. Compared to non-removable structures such as welding, this significantly reduces maintenance difficulty and facilitates future component replacement and functional upgrades.

[0051] In one embodiment, combined with Figure 3 and Figure 6The fixed rod portion 53 is provided with a limiting step 531 in the middle. The limiting step 531 abuts against the side wall of the fixed frame 31, so that the fixed frame 31 abuts against the inner side wall of the guide rail groove 21.

[0052] The diameter of the limiting step 531 is larger than the diameter of the second mounting hole 3111 of the suspension component 3, forming a radially protruding structure. When the fixing bolt 5 is assembled in place, the limiting step 531 will tightly abut against the side wall of the fixing frame 31 of the suspension component 3. Through the axial locking force of the fixing bolt 5, the fixing frame 31 is pushed to approach and finally abut against the inner side wall of the guide rail groove 21, so that the fixing frame 31 is firmly clamped between the limiting step 531 and the inner side wall of the guide rail groove 21.

[0053] In this embodiment, the limiting step 531 rigidly pushes the fixing frame 31 precisely onto the inner wall of the guide rail groove 21, eliminating the gap between the fixing frame 31 and the inner wall. This ensures the consistency of the fixing frame 31's installation position within the guide rail groove 21, preventing positional deviations from affecting the adjustment accuracy of the suspension assembly 3 and the geometric constraint effect of the positioning unit 12. After the fixing frame 31 is clamped between the limiting step 531 and the inner wall of the guide rail groove 21, it forms a rigid connection with the lower guide rail 2, reducing the vibration or swaying of the fixing frame 31 itself. This makes the height adjustment operation of the suspension assembly 3 more stable, improves the position retention after adjustment, and prevents height deviation rebound caused by loosening of the fixing frame 31 after adjustment.

[0054] In one embodiment, combined with Figure 3 The lower guide rail 2 has a limiting groove 22 on its side wall and a limiting plate 312 on its fixing frame 31. The limiting plate 312 is embedded in the limiting groove 22 to restrict the movement of the fixing frame 31 relative to the lower guide rail 2 in the vertical direction.

[0055] In this embodiment, the connection structure between the lower guide rail 2 and the fixing frame 31 is further optimized. A limiting groove 22 extending horizontally is provided on the side wall of the lower guide rail 2. The limiting groove 22 is concave, with its opening facing the inside of the guide rail groove 21. A sheet-like limiting plate 312 is integrally formed or rigidly connected to the corresponding position of the fixing frame 31. The thickness and width of the limiting plate 312 are adapted to the dimensions of the limiting groove 22, allowing it to fit snugly into the limiting groove 22. When the fixing frame 31 is installed in the guide rail groove 21, the limiting plate 312 is simultaneously embedded in the limiting groove 22, forming multiple constraints on the fixing frame 31 together with the limiting step 531 of the fixing bolt 5 and the threaded locking structure. At this time, the upper and lower surfaces of the limiting plate 312 are respectively attached to the upper and lower groove walls of the limiting groove 22, forming a rigid contact in the vertical direction. The other parts of the fixing frame 31 are fixed axially and radially with the guide rail groove 21 through the fixing bolt 5. The overall structure forms a complete spatial constraint system, which further enhances the stability of the installation of the suspension component 3, that is, improves the load-bearing capacity of the clothes rack.

[0056] In one embodiment, combined with Figures 1-5 The bracket body 1 includes several folding units 11, the lowest folding unit 11 being a bottom folding unit 11. The bottom folding unit 11 includes two cross-hinged folding pieces 111, the bottom ends of which are slidably connected to the lower guide rail 2. The positioning unit 12 includes two positioning pieces 121, each folding piece 111 being hinged to one positioning piece 121. The first mounting hole 122 is located on the positioning piece 121 at the end away from the end of the folding piece 111 that is hinged to it. The fixing bolt 5 passes through the first mounting hole 122 to hinge the two positioning pieces 121.

[0057] In this embodiment, the bracket body 1 is composed of several folding units 11 that are sequentially hinged to form a scissor-type telescopic structure. Each folding unit 11 includes two folding pieces 111 that are cross-hinged through a central hinge axis, forming an openable "X"-shaped structure. The bottom ends of the two folding pieces 111 of the lowest folding unit 11 are slidably connected to the lower guide rail 2 through a slide block 112, and can slide synchronously along the guide rail groove 21 as the bracket body 1 extends and retracts.

[0058] The positioning unit 12 consists of two symmetrically distributed positioning pieces 121. One end of each positioning piece 121 is connected to the middle area of ​​the corresponding folding piece 111 through a hinge shaft to form a relatively rotatable connection node. The other end of the positioning piece 121 is provided with a first mounting hole 122. The two positioning pieces 121 are aligned and superimposed through the first mounting hole 122 at this end, and are hinged by a fixing bolt 5, so that the two positioning pieces 121 form an openable and closable symmetrical structure.

[0059] This structure achieves dynamic alignment constraint between the central axis of the bracket body 1 and the vertical line of the lower guide rail 2 through the linkage of the positioning piece 121 and the folding piece 111. When the bracket body 1 extends or retracts, the two cross-hinged folding pieces 111 of the bottom folding unit 11 rotate around the central hinge axis, and the bottom slide block 112 slides along the lower guide rail 2. At this time, the two positioning pieces 121 hinged to the folding pieces 111 will open and close synchronously: when the folding piece 111 opens (the bracket body 1 extends), the two positioning pieces 121 rotate towards each other around the fixing bolt 5; when the folding piece 111 closes (the bracket body 1 shortens), the positioning pieces 121 rotate away from each other. Because the two positioning pieces 121 are hinged together by the fixing bolt 5 to form a symmetrical structure, and the position of the fixing bolt 5 coincides with the vertical line of the lower guide rail 2, this linkage mechanism ensures that the rotation angles of the two positioning pieces 121 are always equal. Furthermore, through the hinge relationship between the positioning pieces 121 and the folding pieces 111, the sliding distances of the two folding pieces 111 are forcibly constrained to remain symmetrical. Regardless of whether the bottom folding unit 11 is in the open or closed state, the symmetrical center line of the two positioning pieces 121 always coincides with the axis of the fixing bolt 5 (i.e., the vertical line of the lower guide rail 2), ultimately achieving dynamic coincidence between the central axis of the bracket body 1 and the vertical line of the lower guide rail 2.

[0060] In this embodiment, the design of direct linkage between the two positioning pieces 121 and the folding piece 111 is adopted, which can realize the center positioning function without additional guide or drive components. While ensuring positioning accuracy, it simplifies the structural complexity, reduces the number of parts, and lowers the overall weight, which is conducive to the lightweight design of the clothes drying rack.

[0061] In one embodiment, reference is made to Figure 7 and 8 The adjusting member 33 is rotatably mounted on the fixed frame 31. The adjusting member 33 includes a threaded rod 331. The wire fixing frame 32 is provided with a second threaded hole 322 that cooperates with the threaded rod 331. The installation height of the wire fixing frame 32 is adjusted by rotating the adjusting member 33.

[0062] The adjusting component 33 is rotatably mounted on the fixed frame 31. Its main body is a threaded rod 331 with external threads. One end of the threaded rod 331 is connected to the fixed frame 31 through a rotating connector such as a bearing or bushing, forming a rotatable connection. The other end extends to the corresponding position of the wire fixing frame 32. The wire fixing frame 32 is provided with a second threaded hole 322 that precisely matches the external thread of the threaded rod 331. The threaded rod 331 passes through the second threaded hole 322 to achieve a threaded connection with the wire fixing frame 32. When the adjusting component 33 rotates, the axial position of the threaded rod 331 on the fixed frame 31 remains unchanged, and only circumferential rotation occurs. Under the action of thread engagement, the wire fixing frame 32 moves up and down along the axial direction of the threaded rod 331, thereby changing its installation height relative to the fixed frame 31.

[0063] This structure, together with the fixing frame 31, the positioning unit 12 and the lower guide rail 2, forms a complete height adjustment system, ensuring that the adjustment operation is precise and controllable.

[0064] In one embodiment, the fixing frame 31 includes a vertical plate 311 and a supporting horizontal plate 314 vertically connected to the bottom side of the vertical plate 311. The adjusting member 33 is rotatably mounted on the supporting horizontal plate 314. The cable fixing frame 32 is arranged parallel above the supporting horizontal plate 314. The installation height of the cable fixing frame 32 can be adjusted by rotating the adjusting member 33.

[0065] This structure forms a stable mounting base through the vertical plate 311 and the supporting horizontal plate 314 of the fixing frame 31, providing reliable support and positioning for the adjusting component 33 and the cable holder 32. The solid connection between the vertical plate 311 and the lower guide rail 2 ensures that the entire fixing frame 31 will not shake or shift during adjustment, while the supporting horizontal plate 314 provides a horizontal mounting reference for the adjusting component 33, ensuring that the threaded rod 331 of the adjusting component 33 is in a vertical state, making the lifting and lowering movement of the cable holder 32 more stable.

[0066] In one embodiment, the support plate 314 is provided with a through hole that allows the threaded rod 331 to pass through. The bottom end of the threaded rod 331 is connected to a screw cap 332. After the threaded rod 331 passes through the through hole upward, it is threadedly connected to the wire frame 32. The screw cap 332 abuts against the lower surface of the support plate 314. A retaining spring 34 is installed on the upper side of the support plate 314. The retaining spring 34 is locked into the groove on the threaded rod 331, so that the adjusting member 33 can be rotatably installed.

[0067] The screw cap 332 and the retaining ring 34 form axial constraints from the lower and upper sides of the supporting horizontal plate 314, respectively, firmly restricting the adjusting component 33 to the supporting horizontal plate 314. This ensures that the adjusting component 33 will not move axially or fall off during rotation, providing a stable foundation for adjustment operations. The use of a through-hole, screw cap 332, and retaining ring 34 eliminates the need for complex bearings or bushings, reducing the number of parts and making them easier to manufacture, thus lowering production costs and facilitating assembly and maintenance.

[0068] In one embodiment, combined with Figure 8 A wire clamping groove 321 is provided on one side of the wire clamping frame 32. The width of the wire clamping groove 321 is greater than the diameter of the wire rope 4 and smaller than the diameter of the rope head 41 connected to the bottom end of the wire rope 4.

[0069] In this embodiment, the fixing structure of the wire rope 4 of the wire fixing frame 32 is further optimized. A wire clamping groove 321 is specially provided on one side. The wire clamping groove 321 is groove-shaped, and its width is larger than the diameter of the wire rope 4 to be fixed, ensuring that the wire rope 4 can be smoothly inserted laterally into the groove. At the same time, it is smaller than the diameter of the rope head 41 connected to the bottom of the wire rope 4, so that the rope head 41 cannot pass through the wire clamping groove 321, thus forming an axial limit on the wire rope 4. During installation, after the wire rope 4 hangs down from the main unit, it is laterally clamped into the wire clamping groove 321, and the rope head 41 is located below the wire fixing frame 32, abutting against the bottom of the wire fixing frame 32, so as to achieve a stable fixation of the wire rope 4 on the wire fixing frame 32.

[0070] The lateral design and dimensional difference of the cable clamping groove 321, combined with the gravity suspension effect, allow the steel wire rope 4 to be smoothly inserted laterally, while the rope end 41 and gravity form an effective limit, constraining the steel wire rope 4 horizontally, axially, and in the direction of gravity to prevent slippage. This ensures a stable and reliable connection between the steel wire rope 4 and the cable fixing frame 32, providing safety for the raising and lowering of the clothes rack. During installation, simply insert the steel wire rope 4 laterally into the cable clamping groove 321, and then release it, allowing gravity to naturally hang the cable fixing frame 32 on the rope end 41 to complete the initial fixation. No complicated binding or locking operations are required, simplifying the installation steps, improving assembly efficiency, and reducing the skill requirements for installers.

[0071] In one embodiment, the fixing frame 31 is provided with a wire passage hole 315 to avoid the wire rope 4 and the rope end 41, so as to facilitate the wire rope 4 being laterally inserted into the wire clamping groove 321 of the fixing frame 32.

[0072] On the other hand, a clothes drying rack is provided, including the aforementioned lifting bracket.

[0073] The clothes drying rack in this embodiment includes a main unit and a clothes rack. The upper and lower ends of the lifting bracket are respectively connected to the main unit and the clothes rack to maintain the stability of the clothes rack.

[0074] Similarly, the clothes drying rack in this embodiment has the advantage of being easy to adjust the level of the clothes rack.

[0075] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0077] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0078] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A lifting bracket, characterized in that, include: Lower guide rail; The bracket body includes a positioning unit, which is used to ensure that the central axis of the bracket body coincides with the vertical line of the lower guide rail; The suspension assembly, installed at the middle position of the lower guide rail, includes a fixed frame, a wire rope fixing frame, and an adjusting component. The wire rope fixing frame is used to fix the steel wire rope, and the adjusting component connects the fixed frame and the wire rope fixing frame. The installation height of the wire rope fixing frame on the fixed frame can be adjusted by the adjusting component. The positioning unit includes a first mounting hole, the fixing frame includes a second mounting hole, and a fixing bolt is provided at the middle position of the lower guide rail. The fixing bolt passes through the first mounting hole and the second mounting hole to simultaneously fix the positioning unit and the suspension assembly.

2. The lifting bracket according to claim 1, characterized in that, The fixing frame includes a vertically extending latch, and the lower guide rail is provided with a slot. The latch is embedded in the slot to restrict the movement of the fixing frame along the axial direction of the fixing bolt.

3. The lifting bracket according to claim 1, characterized in that, The top side of the lower guide rail is provided with a guide rail groove, the suspension assembly is installed in the guide rail groove, the positioning unit extends into the guide rail groove, and the fixing bolt extends into the guide rail groove to connect the positioning unit and the suspension assembly simultaneously.

4. The lifting bracket according to claim 3, characterized in that, A third mounting hole communicating with the guide rail groove is provided on one side wall of the lower guide rail, and the fixing bolt extends into the guide rail groove through the third mounting hole.

5. The lifting bracket according to claim 4, characterized in that, The fixing bolt includes a fixing rod, a threaded part, and a nut connected in sequence. A fixing member with a first threaded hole is provided in the guide rail groove. The fixing rod passes through the third mounting hole, the threaded hole, the first mounting hole, and the second mounting hole. The nut abuts against the outer side wall of the lower guide rail. The threaded part is threadedly locked with the first threaded hole to realize the fixed installation of the fixing bolt.

6. The lifting bracket according to claim 5, characterized in that, The fixed rod has a limiting step in the middle, and the limiting step abuts against the side wall of the fixed frame, so that the fixed frame abuts against the inner side wall of the guide rail groove.

7. The lifting bracket according to claim 3, characterized in that, The side wall of the lower guide rail is provided with a limiting groove, and the fixing frame is provided with a limiting plate. The limiting plate is embedded in the limiting groove to restrict the movement of the fixing frame relative to the lower guide rail in the vertical direction.

8. The lifting bracket according to claim 1, characterized in that, The bracket body includes several folding units, the lowest folding unit being a bottom folding unit. The bottom folding unit includes two cross-hinged folding pieces, the bottom ends of which are slidably connected to the lower guide rail. The positioning unit includes two positioning pieces, each folding piece being hinged to one positioning piece. The first mounting hole is located on the positioning piece at the end away from the hinged folding piece, and the fixing bolt passes through the first mounting hole to hinge the two positioning pieces.

9. The lifting bracket according to claim 1, characterized in that, The adjusting component is rotatably mounted on the fixed frame. The adjusting component includes a threaded rod, and the wire fixing frame is provided with a second threaded hole that mates with the threaded rod. The installation height of the wire fixing frame is adjusted by rotating the adjusting component.

10. A clothes drying rack, characterized in that, Including the lifting bracket as described in any one of claims 1-9.

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