Pull-out connection assembly and drawer cabinet

Abstract

This application relates to the field of goods dispensing equipment, and in particular to a pull-out connecting assembly and a drawer cabinet. The pull-out connecting assembly includes a roller component disposed on the cabinet body. The roller component includes a first roller group and a second roller group, which are vertically spaced to define a pull-out channel between them. The first roller group and the second roller group can be selectively moved closer or further apart to adjust the width of the pull-out channel. A slide rail component is disposed on the cabinet door, and the slide rail component is inserted into the pull-out channel and rolls in contact with the first roller group and the second roller group. This application not only reduces assembly difficulty and improves assembly efficiency, but also enhances structural compatibility, equipment operational stability, and extends the service life of the equipment.

Description

Technical Field

[0001] This application relates to the field of goods dispensing equipment, and in particular to a pull-out connection assembly and a drawer cabinet. Background Technology

[0002] The side cabinets of vending machines and other product dispensing equipment are often drawer cabinets, meaning the cabinet doors typically open by sliding. In related technologies, long, narrow sliding rails are installed on both sides of the cabinet interior, allowing the doors to slide along these rails to open and close. However, installing and maintaining these long, narrow sliding rails requires working deep inside the cabinet, which is space-constrained and difficult. It also demands extremely high welding precision; any welding errors will prevent the rails from fitting snugly against the cabinet door for proper opening and closing. Furthermore, if the cabinet is deformed during manufacturing, the rails cannot fully conform to the inner wall, making installation impossible. In such cases, the cabinet needs to be reshaped, which is extremely difficult. Especially since the electrical components inside the drawers are heavy, the rails are prone to deformation, leading to jamming and abnormal noises during opening and closing. Utility Model Content

[0003] This application provides a pull-out connection component and a drawer cabinet, which not only reduces assembly difficulty and improves assembly efficiency, but also enhances structural compatibility, equipment operation stability, and extends the service life of the equipment.

[0004] In a first aspect, the pull-out connecting assembly provided in this application is used to pull-outly connect a cabinet door to a cabinet body, the pull-out connecting assembly comprising:

[0005] A roller assembly is disposed on the cabinet body. The roller assembly includes a first roller group and a second roller group. The first roller group and the second roller group are vertically spaced to define a pull-out channel between them. The first roller group and the second roller group can be selectively moved closer or further apart to adjust the width of the pull-out channel.

[0006] A slide rail component is provided on the cabinet door, and the slide rail component is inserted into the pull-out channel and rolls in contact with the first roller group and the second roller group.

[0007] In some embodiments, the roller component further includes:

[0008] The first mounting base is connected to the cabinet; and

[0009] The second mounting base is connected to the first mounting base;

[0010] The first roller assembly is fixed to the first mounting base, the second roller assembly is fixed to the second mounting base, and the position of the second mounting base on the first mounting base is adjustable so that the second roller assembly moves closer to or further away from the first roller assembly.

[0011] In some embodiments, the first mounting base includes a first mounting plate and a first flange extending vertically from the first mounting plate, and the first roller assembly is fixed to the first mounting plate;

[0012] The second mounting base includes a second mounting plate and a second flange extending vertically from the second mounting plate. The second mounting plate is disposed on the back of the first mounting plate, and the second roller assembly passes through the front of the first mounting plate and is fixedly connected to the second mounting plate.

[0013] Wherein, the first flange is formed on the upper edge of the first mounting plate and the second flange is formed on the upper edge of the second mounting plate; or, the first flange is formed on the lower edge of the first mounting plate and the second flange is formed on the lower edge of the second mounting plate;

[0014] The roller component further includes:

[0015] A limiting member, passing through the first flange and abutting against the second flange; and

[0016] The first fastener includes a first nut portion and a first bolt portion through which the first flange and the second flange pass and are locked to the first nut portion.

[0017] In some embodiments, the roller component further includes:

[0018] Multiple second fasteners are arranged at intervals in sequence in the pull-out direction. Each second fastener includes a second bolt portion and a second nut portion. The second bolt portion passes through the first mounting hole of the first mounting plate and the second mounting hole of the second mounting plate. The second nut portion is threaded to the end of the second bolt portion.

[0019] The first assembly hole is an elongated hole extending in the vertical direction.

[0020] In some embodiments, the first roller group includes a plurality of first rollers arranged at intervals in the pulling direction, and each first roller is fixed to the first mounting plate.

[0021] The second roller assembly includes a plurality of second rollers arranged at intervals in the pulling direction. Each second roller passes through the first mounting plate and is fixed to the second mounting plate. The second rollers and the first rollers are symmetrically arranged on the upper and lower sides of the slide rail component.

[0022] In some embodiments, the first roller and the second roller each include an integral wheel body, a boss, and a screw, wherein the boss is used to cause the wheel body to extend out of the first mounting plate and roll in contact with the slide rail component;

[0023] The screw is fitted with a press-fitting component on its outer side.

[0024] In some embodiments, the slide rail component includes a connecting seat and a slide rail fixed to the connecting seat. Both the connecting seat and the slide rail extend along the pulling direction of the cabinet door. The slide rail is inserted into the pulling channel and rolls in contact with the first roller group and the second roller group.

[0025] The connecting seat is fixedly connected to the cabinet door.

[0026] In some embodiments, the length of the slide rail in the pulling direction is greater than the length of the pulling channel in the pulling direction;

[0027] The slide rail has a first end located near the cabinet door and a second end located away from the cabinet door. The first end and the second end of the slide rail are arranged opposite to each other in the pulling direction. The second end of the slide rail forms a limiting flange, which is used to abut against the roller component when the cabinet door is pulled to the limit position, so as to limit the maximum pulling stroke of the cabinet door.

[0028] In some embodiments, the pull-out connection assembly includes two roller members, which are symmetrically arranged on both sides of the slide rail member;

[0029] The slide rail component includes two slide rails, which are symmetrically fixed on both sides of the connecting seat. One slide rail is inserted into the pull-out channel of one of the roller components and rolls in contact with the first roller group and the second roller group. The other slide rail is inserted into the pull-out channel of the other roller component and rolls in contact with the first roller group and the second roller group.

[0030] Secondly, the drawer cabinet provided in this application includes:

[0031] Cabinet;

[0032] Cabinet doors; and

[0033] As described in any embodiment of the first aspect, the number of pull-out connecting components is two, one of which has a slide rail component disposed near the upper end of the cabinet door, and the other has a slide rail component disposed near the lower end of the cabinet door.

[0034] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: The pull-out connecting assembly and drawer cabinet include a roller component with a first roller group and a second roller group. The first roller group and the second roller group are spaced apart in the vertical direction to form a pull-out channel. The first roller group and the second roller group can selectively move closer or further apart to adjust the width of the pull-out channel. Even if welding errors or deformation problems occur during the cabinet manufacturing process, the roller component and the slide rail component can be adapted to each other by adjusting the width of the pull-out channel. This not only facilitates assembly, reduces assembly difficulty, and improves assembly efficiency, but also enables the matching of the cabinet door and the cabinet body. It can also compensate for the gap caused by wear between the roller component and the slide rail component, restore their tight fit, and avoid pull-out shaking. At the same time, the slide rail component and the first roller group and the second roller group roll contact and cooperate, which can better distribute the weight of the electric control on the cabinet door, reduce the risk of deformation of the slide rail component, thereby avoiding problems such as jamming and abnormal noise during the pull-out process, improving the operational stability of the equipment, and extending the service life of the equipment. Attached Figure Description

[0035] Figure 1 This is a three-dimensional structural diagram of the pull-out connection component according to an embodiment of this application;

[0036] Figure 2 for Figure 1 Another perspective view of the pull-out connection component shown;

[0037] Figure 3 for Figure 1 Enlarged view of a roller component in the pull-out connection assembly shown;

[0038] Figure 4 for Figure 1 Enlarged view of another roller component in the pull-out connection assembly shown;

[0039] Figure 5 for Figure 4 Enlarged view of the first mounting base in the roller assembly shown;

[0040] Figure 6 for Figure 4 Enlarged view of the second mounting base in the roller assembly shown;

[0041] Figure 7 for Figure 1 Enlarged view of the slide rail component in the pull-out connection assembly shown;

[0042] Figure 8 This is a schematic diagram of the closed state of the drawer cabinet in the embodiment of the application;

[0043] Figure 9 This is a schematic diagram of the drawer cabinet in the open state of the embodiment of the application;

[0044] Figure 10 for Figure 9 The diagram shows the structure of the drawer chest with part of the cabinet removed.

[0045] Figure 11 for Figure 9 A magnified view of a portion of the A structure;

[0046] Figure 12 for Figure 9 A magnified view of the local B structure;

[0047] Wherein: 100-Drawer cabinet (10-Pull-out connecting assembly (10a-First pull-out connecting assembly, 10b-Second pull-out connecting assembly), 11-Roller assembly (111-First roller group (1111-First roller, 1111a-The first roller in the first roller group furthest from the cabinet door), 112-Second roller group (1121-Second roller, 1121a-The second roller in the second roller group furthest from the cabinet door), (1101-Wheel body, 1102-Boss, 1103-Screw), 113-Pull-out channel, 114-First mounting base (1141-First mounting plate (11411-First assembly hole, 11412-First clearance hole), 1142-First flange (11421-Second clearance hole) ), 115-Second mounting base (1151-Second mounting plate (11511-Second assembly hole), 1152-Second flange), 116-Limiting component (1161-First threaded part, 1162-Second threaded part), 117-First fixing component (1171-First bolt part, 1172-First nut part), 118-Second fixing component (1181-Second bolt part, 1182-Second nut part), 119-Riveting component), 12-Slide rail component (121-Connecting seat, 122-Slide rail (1221-Connecting plate, 1222-Third flange, 1223-Fourth flange), 123-Limiting flange (123a-Limiting flange, 123b-Limiting flange)), 20-Cabinet door, 30-Cabinet body). Detailed Implementation

[0048] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings. Preferred embodiments of this application are shown in the drawings. However, this application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of this application.

[0049] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be intermediate components present. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be intermediate components present.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0051] Please refer to Figures 1 to 12 In this embodiment, the pull-out connecting assembly 10 is used to pull-outly connect the cabinet door 20 to the cabinet body 30. The pull-out connecting assembly 10 includes a roller component 11 and a slide rail component 12. The roller component 11 is disposed on the cabinet body 30 and includes a first roller group 111 and a second roller group 112. The first roller group 111 and the second roller group 112 are spaced apart in the vertical direction, thereby defining a pull-out channel 113 between the first roller group 111 and the second roller group 112. Furthermore, the first roller group 111 and the second roller group 112 can be selectively moved closer or further apart to adjust the width of the pull-out channel 113. The slide rail component 12 is disposed on the cabinet door 20 and inserted into the pull-out channel 113. The slide rail component 12 makes rolling contact with the first roller group 111 and the second roller group 112.

[0052] In this embodiment, the roller components are mounted on the cabinet body, and the slide rail components are mounted on the cabinet door, facilitating the assembly of the drawer cabinet, reducing assembly difficulty, and improving assembly efficiency. Furthermore, the first roller group 111 and the second roller group 112 can selectively move closer or further apart to adjust the width of the pull-out channel 113. Even if there are dimensional errors or deformation issues during the processing of the cabinet body 30 and the slide rail components, adjusting the width of the pull-out channel 113 allows the roller components 11 and the slide rail components 12 to be matched, thereby achieving pull-out matching between the cabinet door 20 and the cabinet body 30, improving structural compatibility, and compensating for gaps caused by wear between the roller components 11 and the slide rail components 12, restoring their tight fit and preventing pull-out wobbling. Simultaneously, the rolling contact between the slide rail component 12 and the first roller group 111 and the second roller group 112 better distributes the weight of the electrical controls on the cabinet door 20, reducing the risk of deformation of the slide rail component 12, thus avoiding problems such as jamming and abnormal noise during pull-out, improving the operational stability of the equipment, and extending the service life of the equipment.

[0053] In some implementation methods, please refer to Figures 10 to 12The first roller assembly 111 remains fixed in position within the cabinet 30, while the second roller assembly 112 is adjustable in position within the cabinet 30. For example, when the width of the pull-out channel 113 is greater than the width of the slide rail component 12, the second roller assembly 112 can be moved closer to the first roller assembly 111, thereby reducing the width of the pull-out channel 113 and adapting it to the slide rail component 12. When the width of the pull-out channel 113 is less than the width of the slide rail component 12, the second roller assembly 112 can be moved further away from the first roller assembly 111, thereby increasing the width of the pull-out channel 113 and adapting it to the slide rail component 12.

[0054] In some implementation methods, please refer to Figures 1 to 6 , Figure 11 and Figure 12 The roller component 11 also includes a first mounting base 114 and a second mounting base 115. The first mounting base 114 is connected to the cabinet 30, and the second mounting base 115 is connected to the first mounting base 114. The first roller assembly 111 is fixed to the first mounting base 114, and the second roller assembly 112 is fixed to the second mounting base 115. The position of the second mounting base 115 on the first mounting base 114 is adjustable so that the second roller assembly 112 moves closer to or further away from the first roller assembly 111. For example, when the width of the pull-out channel 113 is greater than the width of the slide rail component 12, the second mounting base 115 can be moved closer to the first roller assembly 111, thereby reducing the vertical distance between the second roller assembly 112 and the first roller assembly 111, i.e., the width of the pull-out channel 113. When the width of the pull-out channel 113 is less than the width of the slide rail component 12, the second mounting base 115 can be moved away from the first roller group 111, thereby increasing the vertical distance between the second roller group 112 and the first roller group 111, i.e., the width of the pull-out channel 113.

[0055] In this embodiment, the first roller assembly 111 is indirectly installed on the cabinet 30 via the first mounting base 114 rather than directly on the cabinet 30. Due to the limited internal space of the cabinet 30, directly installing individual rollers from the first roller assembly 111 one by one inside the cabinet 30 would not only be difficult but also make it hard to ensure the positional accuracy of all rollers. This could easily lead to problems such as misalignment and inconsistent heights of the rollers in the first roller assembly 111, thus affecting the stability of the subsequently formed pull-out channel 113. In this embodiment, all rollers of the first roller assembly 111 can be pre-installed and calibrated on the first mounting base 114 outside the cabinet 30 to ensure the collinearity and positional accuracy of the rollers. Then, the assembled structure is installed onto the cabinet 30, simplifying the installation process inside the cabinet 30, reducing installation difficulty, and effectively ensuring the installation accuracy of the first roller assembly 111. Furthermore, all rollers of the second roller group 112 are fixed to the second mounting base 115. When it is necessary to adjust the width of the pull-out channel 113, it is not necessary to adjust each individual roller in the second roller group 112. Simply move the second mounting base 115 to drive the entire second roller group 112 to move as a whole in the direction of approaching or moving away from the first roller group 111. This ensures that the distance between all rollers in the second roller group 112 and the first roller group 111 is always consistent, effectively avoiding the problem of uneven channel width caused by improper adjustment of individual rollers, and improving the accuracy and efficiency of the adjustment operation.

[0056] In some implementation methods, please refer to Figures 4 to 6 The first mounting base 114 includes a first mounting plate 1141 and a first flange 1142. The first flange 1142 extends vertically from the first mounting plate 1141, and the first roller assembly 111 is fixed to the first mounting plate 1141. The second mounting base 115 includes a second mounting plate 1151 and a second flange 1152. The second flange 1152 extends vertically from the second mounting plate 1151. The second mounting plate 1151 is disposed on the back of the first mounting plate 1141, and the second roller assembly 112 passes through the front of the first mounting plate 1141 and is fixedly connected to the second mounting plate 1151. The roller component 11 also includes a limiting member 116 and a first fixing member 117. The limiting member 116 passes through the first flange 1142 and abuts against the second flange 1152. The first fixing member 117 includes a first bolt portion 1171 and a first nut portion 1172 that are threaded together. The first bolt portion 1171 passes through the first flange 1142 and the second flange 1152 and is locked to the first nut portion 1172.

[0057] In this embodiment, the first flange 1142 is perpendicular to the first mounting plate 1141, and the second flange 1152 is perpendicular to the second mounting plate 1151, thus forming a rigid support structure and enhancing the structural strength of the first mounting base 114 and the second mounting base 115. The limiting member 116 passes through the first flange 1142 and abuts against the second flange 1152, effectively limiting the width of the pull-out channel 113. The first fixing member 117, composed of the first bolt portion 1171 and the first nut portion 1172, passes through the first flange 1142 and the second flange 1152 and locks in place. This not only quickly and effectively fixes the second mounting base 115 after adjustment, but also provides reliable locking force through the threaded connection, preventing the second mounting base 115 from loosening due to vibration or other reasons after long-term use.

[0058] As one implementation method, please refer to Figures 4 to 6 as well as Figure 11 The first roller assembly 111 is disposed at the upper end of the second roller assembly 112. The first flange 1142 extends vertically from the lower edge of the first mounting plate 1141, and the second flange 1152 extends vertically from the lower edge of the second mounting plate 1151. The second flange 1152 is located at the upper end of the first flange 1142. The limiting member 116 passes through the first flange 1142 from bottom to top and abuts against the lower end of the second flange 1152.

[0059] As one implementation method, please refer to Figure 12 The first roller assembly 111 is disposed at the lower end of the second roller assembly 112. The first flange 1142 extends vertically from the upper edge of the first mounting plate 1141, and the second flange 1152 extends vertically from the upper edge of the second mounting plate 1151. The second flange 1152 is located at the lower end of the first flange 1142. The limiting member 116 passes through the first flange 1142 from top to bottom and abuts against the upper end of the second flange 1152.

[0060] In some implementation methods, please refer to Figure 3 and Figure 4 The roller component 11 includes at least two limiting members 116. All limiting members 116 are arranged sequentially at intervals in the pull-out direction of the cabinet door 20. They can constrain the second mounting base 115 from different positions during its movement, preventing the second mounting base 115 from tilting due to insufficient support from a single limiting member 116, and further ensuring the uniformity and accuracy of the width adjustment of the pull-out channel 113. Moreover, the spaced limiting members 116 can disperse the lateral force on the second mounting base 115 during long-term pull-out use, reduce the stress load on a single limiting member 116, and reduce the risk of limiting member 116 failing due to local wear or deformation.

[0061] As an example, please refer to Figure 3 and Figure 4The roller component 11 includes two limiting members 116, which are symmetrically arranged in the pulling direction. This not only simplifies the structure but also effectively prevents the second mounting base 115 from tilting.

[0062] As one implementation method, please refer to Figures 3 to 5 Each of the limiting members 116 includes a first threaded portion 1161 and a second threaded portion 1162. The first threaded portion 1161 is fixed to the first flange 1142 and has a threaded hole. The second threaded portion 1162 has an external thread and is threadedly connected to the threaded hole and abuts against the second flange 1152. As an example, the first threaded portion 1161 can be a nut, and the second threaded portion 1162 can be a bolt. The first flange 1142 has a second clearance hole 11421 that corresponds one-to-one with the first threaded portion 1161. The second clearance hole 11421 is coaxially arranged with the threaded hole of the corresponding first threaded portion 1161, and the diameter of the second clearance hole 11421 is larger than the diameter of the threaded hole of the first threaded portion 1161. The second threaded portion 1162, which is threadedly connected to the threaded hole, passes through the second clearance hole 11421 and abuts against the second flange 1152.

[0063] In this embodiment, the depth to which the second threaded portion 1162 screws into the first threaded portion 1161 can be effectively controlled through the threaded engagement, thereby achieving precise positioning of the second mounting base 115 and further improving the adjustment accuracy when adjusting the position of the second roller assembly 112, ensuring more precise adjustment of the width of the pull-out channel 113. Furthermore, the threaded connection has a self-locking characteristic, which can stably maintain the positioning state after contact, preventing loosening due to vibration or other factors, thus ensuring the positional stability of the second mounting base 115 during long-term use. Simultaneously, the threaded connection also facilitates adjustment of the limiting component 116 according to actual needs. When the position of the second mounting base 115 needs adjustment, simply rotating the second threaded portion 1162 can quickly complete the adjustment, improving adjustment efficiency.

[0064] In some implementation methods, please refer to Figure 3 and Figure 4 The roller component 11 includes at least two first fixing members 117, all of which are arranged at intervals in the pull-out direction. In this embodiment, the multiple first fixing members 117 are distributed along the pull-out direction, which can distribute the connection force between the first flange 1142 and the second flange 1152 to different positions, avoiding local deformation or loosening caused by excessive force on a single first fixing member 117, and ensuring that the second mounting base 115 maintains a stable connection with the first mounting base 114 during long-term pull-out use. At the same time, the spaced first fixing members 117 can form multi-point constraints on the second mounting base 115, ensuring the stability of the width of the pull-out channel 113.

[0065] As an example, please refer to Figure 3 and Figure 4 The roller component 11 includes two first fixing members 117, which are symmetrically arranged in the pulling direction, and a limiting member 116 is located between the two first fixing members 117. In this embodiment, the limiting member 116 is located between the two first fixing members 117, which can form a central constraint when adjusting the position of the second mounting base 115. Together with the locking force of the first fixing members 117 on both sides, a reasonable mechanical distribution is formed between the limiting point and the fixing point. This not only ensures the guiding accuracy during the adjustment process, but also enhances the vibration resistance of the overall structure after fixing, effectively avoiding loosening or displacement after long-term pulling, further improving the structural stability of the pulling channel 113, and ensuring the smooth operation of the pulling connection component 10.

[0066] In some implementation methods, please refer to Figures 3 to 6 The roller component 11 further includes a second fixing member 118, which includes a second bolt portion 1181 and a second nut portion 1182. The second bolt portion 1181 passes through the first mounting hole 11411 of the first mounting plate 1141 and the second mounting hole 11511 of the second mounting plate 1151. The second nut portion 1182 is threadedly connected to the second bolt portion 1181 to fix the first mounting plate 1141 and the second mounting plate 1151 between the second nut portion 1182 and the second bolt portion 1181. The first mounting hole 11411 is an elongated hole extending vertically. In one embodiment, the roller component 11 includes a plurality of second fixing members 118, which are arranged sequentially at intervals in the pulling direction.

[0067] In this embodiment, the second bolt portion 1181 passes through the first mounting hole 11411 and the second mounting hole 11511 and is locked with the second nut portion 1182, forming an additional connection and fixing point outside the first fixing member 117. This further enhances the connection strength between the first mounting base 114 and the second mounting base 115, preventing relative displacement of the first mounting base 114 and the second mounting base 115 after long-term stress or vibration. The elongated first mounting hole 11411 provides clearance for the vertical position adjustment of the second mounting base 115. When the width of the pull-out channel 113 is adjusted by moving the second mounting base 115, the elongated hole can adapt to the up-and-down movement trajectory of the second fixing member 118, further improving the adjustment flexibility of the roller component 11.

[0068] In some implementation methods, please refer to Figure 3 and Figure 4The first roller group 111 includes a plurality of first rollers 1111, all of which are arranged at intervals in the pull-out direction, and each first roller 1111 is fixed to a first mounting plate 1141. The second roller group 112 includes a plurality of second rollers 1121, all of which are arranged at intervals in the pull-out direction, and each second roller 1121 passes through the first mounting plate 1141 and is fixed to a second mounting plate 1151. The second rollers 1121 and the first rollers 1111 are symmetrically arranged on the upper and lower sides of the slide rail component 12. For example, please refer to... Figure 5 The first mounting plate 1141 has a first clearance hole 11412 corresponding to the second roller 1121. The first clearance hole 11412 is an elongated hole extending vertically, and the second roller 1121 passes through the corresponding first clearance hole 11412. The elongated first clearance hole 11412 provides space for the second roller 1121 to move up and down.

[0069] In this embodiment, the plurality of first rollers 1111 of the first roller group 111 and the plurality of second rollers 1121 of the second roller group 112 are arranged sequentially at intervals in the pulling direction, and the first rollers 1111 and the second rollers 1121 are symmetrically distributed on the upper and lower sides of the slide rail component 12. This can distribute the friction and pressure on the slide rail component 12 during the pulling process to each roller, avoiding wear or deformation caused by excessive force on a single roller. This not only extends the service life of the rollers, but also prevents the slide rail component 12 from tilting or jamming due to force deviation, making the pulling process of the cabinet door 20 smoother and more stable.

[0070] As one implementation method, please refer to Figure 2 and Figure 4 The first roller 1111 and the second roller 1121 each include a wheel body 1101, a boss 1102, and a screw 1103 connected in sequence. The boss 1102 is used to allow the wheel body 1101 to extend out of the first mounting plate 1141 and roll in contact with the slide rail component 12. A rivet 119 is sleeved on the outside of the screw 1103. In this embodiment, the rivet 119 on the outside of the screw 1103 is tightly connected to the screw 1103 through a rivet process, preventing the screw 1103 from loosening. It can provide a reliable axial fixing force, preventing the roller from loosening during long-term rolling and vibration. At the same time, it simplifies the assembly process between the roller and the mounting plate, and can achieve a stable connection between the roller and the mounting base without additional welding or complex fastening operations, thereby improving the reliability and assembly efficiency of the pull-out connection assembly 10.

[0071] In some implementation methods, please refer to Figure 1 and Figure 2The slide rail component 12 includes a connecting seat 121 and a slide rail 122. The connecting seat 121 is fixedly connected to the cabinet door 20, and the slide rail 122 is fixed to the connecting seat 121. Both the connecting seat 121 and the slide rail 122 extend along the pulling direction of the cabinet door 20. The slide rail 122 is inserted into the pulling channel 113 and rolls in contact with the first roller group 111 and the second roller group 112.

[0072] In some implementation methods, please refer to Figure 1 The length of the slide rail 122 in the pull-out direction is greater than the length of the pull-out channel 113 in the pull-out direction. The slide rail 122 has a first end and a second end that are arranged opposite to each other. The end of the slide rail 122 that is closer to the cabinet door 20 in the pull-out direction is the first end of the slide rail 122, and the end of the slide rail 122 that is farther away from the cabinet door 20 in the pull-out direction is the second end of the slide rail 122. The second end of the slide rail 122 forms a limiting flange 123, which is used to abut against the roller member 11 when the cabinet door 20 is pulled out to the limit position, so as to limit the maximum pull-out stroke of the cabinet door 20.

[0073] In this embodiment, the length of the slide rail 122 in the pulling direction is greater than the length of the pull channel 113 in the pulling direction, ensuring that the slide rail 122 always maintains full contact with the first roller group 111 and the second roller group 112 during the pulling process of the cabinet door 20, avoiding instability or shaking caused by the slide rail 122 disengaging from the roller support. The limiting flange 123 abuts against the roller component 11 when the cabinet door 20 is pulled to its limit position, which can accurately limit the maximum pulling stroke of the cabinet door 20, effectively preventing the cabinet door 20 from separating from the cabinet body 30 due to excessive pulling. This not only avoids safety hazards such as equipment damage or personnel collisions caused by the cabinet door 20 accidentally falling off, but also saves the tedious operation of reinstalling the cabinet door 20 after it is separated from the cabinet body 30.

[0074] As one implementation method, please refer to Figure 1 and Figure 2 The second end of the slide rail 122 forms two limiting flanges 123, which are symmetrically arranged at the upper and lower ends of the slide rail 122. The two limiting flanges 123 are limiting flange 123a and limiting flange 123b, respectively. Limiting flange 123a is set corresponding to the first roller group 111, and limiting flange 123b is set corresponding to the second roller group 112. Limiting flange 123a and limiting flange 123b extend from the slide rail 122 in a mutually distancing direction in the vertical direction. When the cabinet door 20 is pulled outward relative to the cabinet body 30 to... Figure 9 When the limit position is shown, the limiting flange 123a abuts against the first roller 1111a that is farthest from the cabinet door 20 in the first roller group 111, and the limiting flange 123b abuts against the second roller 1121a that is farthest from the cabinet door 20 in the second roller group 112, so that the cabinet door 20 cannot be pulled outward.

[0075] As one implementation method, please refer to Figure 2 and Figure 7 The slide rail 122 includes a connecting plate 1221, two third flanges 1222 that bend from the upper and lower ends of the connecting plate 1221 and extend toward the connecting seat 121, and fourth flanges 1223 that bend from the two third flanges 1222 and extend in mutually distant directions. One of the third flanges 1222 is in rolling contact with the first roller group 111, and the other third flange 1222 is in rolling contact with the second roller group 112. The fourth flange 1223 is fixed to the connecting seat 121, and the two limiting flanges 123 are respectively formed on the two third flanges 1222.

[0076] In this embodiment, two third flanges 1222 extend from the upper and lower ends of the connecting plate 1221 toward the connecting seat 121. The two third flanges 1222 can respectively form rolling contact with the first roller group 111 and the second roller group 112, increasing the contact area between the slide rail 122 and the roller component 11. This allows the roller component 11 and the slide rail component 12 to have more stable and uniform contact, reducing wear during the pulling process. The fourth flange 1223 extends from the third flange 1222 by bending, further enhancing the overall structural strength and deformation resistance of the slide rail 122, preventing the slide rail 122 from bending or deforming due to excessive force. The limiting flange 123 is directly formed from the third flange 1222, eliminating the need for additional limiting components, simplifying the slide rail 122 structure, and improving limiting reliability.

[0077] In some implementation methods, please refer to Figure 1 and Figure 2 The pull-out connecting assembly 10 includes two roller components 11, which are symmetrically arranged on both sides of the slide rail component 12. The slide rail component 12 includes two slide rails 122, which are symmetrically fixed to both sides of the connecting seat 121. One slide rail 122 is inserted into the pull-out channel 113 of one of the roller components 11 and rolls in contact with the first roller group 111 and the second roller group 112. The other slide rail 122 is inserted into the pull-out channel 113 of the other roller component 11 and rolls in contact with the first roller group 111 and the second roller group 112. As an example, the pull-out direction is forward and backward, the two roller components 11 are symmetrically arranged on the left and right sides of the slide rail component 12, and the two slide rails 122 are symmetrically fixed to the left and right sides of the connecting seat 121.

[0078] In this embodiment, the two symmetrically distributed roller components 11 cooperate with the two symmetrically arranged slide rails 122 to evenly distribute the force generated when the cabinet door 20 is pulled out to both sides of the cabinet door 20, avoiding the cabinet door 20 from tilting or shifting due to excessive force on one side, and reducing jamming or abnormal noise caused by uneven wear on one side.

[0079] Please refer to Figures 8 to 12 The drawer cabinet 100 in this embodiment includes a cabinet body 30, a cabinet door 20, and a pull-out connecting assembly 10 provided in any of the above embodiments. The pull-out connecting assembly 10 is used to pull the cabinet door 20 out of the cabinet body 30, and the cabinet door 20 can be pulled out relative to the cabinet body 30. Figure 9 As shown in the extreme open position, cabinet door 20 can be pushed back relative to cabinet body 30. Figure 8 The screen indicates the off state. Please refer to [the documentation / reference]. Figure 10 There are two pull-out connection components 10. The slide rail component 12 of one pull-out connection component 10 is located near the upper end of the cabinet door 20, and the slide rail component 12 of the other pull-out connection component 10 is located near the lower end of the cabinet door 20.

[0080] In this embodiment, the two pull-out connecting components 10 are distributed vertically along the height of the cabinet door 20 to prevent deformation of the cabinet door 20 or damage to the pull-out connecting components 11 due to excessive load, thereby improving the overall load-bearing capacity of the structure. Furthermore, the pull-out connecting components 10 at both ends guide the pull-out action simultaneously, effectively preventing the cabinet door 20 from swaying or tilting during the pulling process. This ensures that the cabinet door 20 always moves smoothly in a horizontal direction, reducing problems such as jamming and abnormal noise caused by center of gravity shift, extending the service life of the drawer cabinet 100, and improving the user experience.

[0081] In some implementation methods, please refer to Figures 10 to 12 The pull-out connecting assembly 10 located near the upper end of the cabinet door 20 is the first pull-out connecting assembly 10a, and the pull-out connecting assembly 10 located near the lower end of the cabinet door 20 is the second pull-out connecting assembly 10b. In the first pull-out connecting assembly 10a, the first roller group 111 is located above the second roller group 112, meaning that in the first pull-out connecting assembly 10a, the second mounting base 115 is located near the lower end of the first mounting base 114. In the second pull-out connecting assembly 10b, the first roller group 111 is located below the second roller group 112, meaning that in the first pull-out connecting assembly 10a, the second mounting base 115 is located near the upper end of the first mounting base 114.

[0082] In this embodiment, the second mounting base 115 of the first pull-out connecting assembly 10a and the second mounting base 115 of the second pull-out connecting assembly 10b are both in a more easily operable position, avoiding the adjustment difficulties caused by the concealed position of the limiting member 116 and the first fixing member 117 or the small operating space, and improving the adjustment efficiency.

[0083] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above embodiments merely illustrate preferred implementations of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A pull-out connection assembly, characterized in that, For retractable connection of cabinet doors to the cabinet body, the retractable connection assembly includes: A roller assembly is disposed on the cabinet body. The roller assembly includes a first roller group and a second roller group. The first roller group and the second roller group are vertically spaced to define a pull-out channel between them. The first roller group and the second roller group can be selectively moved closer or further apart to adjust the width of the pull-out channel. A slide rail component is provided on the cabinet door, and the slide rail component is inserted into the pull-out channel and rolls in contact with the first roller group and the second roller group.

2. The pull-out connection assembly as described in claim 1, characterized in that, The roller component further includes: A first mounting bracket is connected to the cabinet; and The second mounting base is connected to the first mounting base; The first roller assembly is fixed to the first mounting base, the second roller assembly is fixed to the second mounting base, and the position of the second mounting base on the first mounting base is adjustable so that the second roller assembly moves closer to or further away from the first roller assembly.

3. The pull connector assembly of claim 2, wherein, The first mounting base includes a first mounting plate and a first flange extending vertically from the first mounting plate, and the first roller assembly is fixed to the first mounting plate; The second mounting base includes a second mounting plate and a second flange extending vertically from the second mounting plate. The second mounting plate is disposed on the back of the first mounting plate, and the second roller assembly passes through the front of the first mounting plate and is fixedly connected to the second mounting plate. Wherein, the first flange is formed on the upper edge of the first mounting plate and the second flange is formed on the upper edge of the second mounting plate; or, the first flange is formed on the lower edge of the first mounting plate and the second flange is formed on the lower edge of the second mounting plate; The roller component further includes: A limiting member, passing through the first flange and abutting against the second flange; and The first fastener includes a first nut portion and a first bolt portion through which the first flange and the second flange pass and are locked to the first nut portion.

4. The pull-out connection assembly as described in claim 3, characterized in that, The roller component further includes: Multiple second fasteners are arranged sequentially at intervals in the pull-out direction of the cabinet door. Each second fastener includes a second bolt portion and a second nut portion. The second bolt portion passes through the first mounting hole of the first mounting plate and the second mounting hole of the second mounting plate. The second nut portion is threadedly connected to the end of the second bolt portion. The first assembly hole is an elongated hole extending in the vertical direction.

5. The pull-out connection assembly as described in claim 3, characterized in that, The first roller group includes a plurality of first rollers arranged at intervals in the pull-out direction of the cabinet door, and each first roller is fixed to the first mounting plate. The second roller assembly includes a plurality of second rollers arranged at intervals in the pulling direction. Each second roller passes through the first mounting plate and is fixed to the second mounting plate. The second rollers and the first rollers are symmetrically arranged on the upper and lower sides of the slide rail component.

6. The pull-out connection assembly as described in claim 5, characterized in that, The first roller and the second roller each include an integral wheel body, a boss and a screw, and the boss is used to make the wheel body extend out of the first mounting plate and roll in contact with the slide rail component; The screw is fitted with a press-fitting component on its outer side.

7. The pull-out connection assembly as described in claim 1, characterized in that, The slide rail component includes a connecting seat and a slide rail fixed to the connecting seat. Both the connecting seat and the slide rail extend along the pulling direction of the cabinet door. The slide rail is inserted into the pulling channel and rolls in contact with the first roller group and the second roller group. The connecting seat is fixedly connected to the cabinet door.

8. The pull-out connection assembly as described in claim 7, characterized in that, The length of the slide rail in the pulling direction is greater than the length of the pulling channel in the pulling direction; The slide rail has a first end located near the cabinet door and a second end located away from the cabinet door. The first end and the second end of the slide rail are arranged opposite to each other in the pulling direction. The second end of the slide rail forms a limiting flange, which is used to abut against the roller component when the cabinet door is pulled to the limit position, so as to limit the maximum pulling stroke of the cabinet door.

9. The pull-out connection assembly as described in claim 7, characterized in that, The pull-out connection assembly includes two roller components, which are symmetrically arranged on both sides of the slide rail component; The slide rail component includes two slide rails, which are symmetrically fixed on both sides of the connecting seat. One slide rail is inserted into the pull-out channel of one of the roller components and rolls in contact with the first roller group and the second roller group. The other slide rail is inserted into the pull-out channel of the other roller component and rolls in contact with the first roller group and the second roller group.

10. A drawer cabinet, characterized in that, include: Cabinet; Cabinet doors; as well as The pull-out connecting assembly as described in any one of claims 1 to 9, wherein there are two pull-out connecting assemblies, wherein the slide rail component of one pull-out connecting assembly is disposed near the upper end of the cabinet door, and the slide rail component of the other pull-out connecting assembly is disposed near the lower end of the cabinet door.

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