A linkage assembly

Abstract

The utility model discloses a kind of linkage assemblies, including clamping assembly, connecting assembly and fixed part. Clamping assembly contains the clamping part of clamping transmission belt, first extension and first assembly part;Connecting assembly has the connecting part of connecting linkage door, second extension and second assembly part. Second assembly part and first assembly part are slidably connected, longitudinal avoiding space is formed between the two, the sliding direction can change the lateral distance of two extensions to adjust the width of avoiding space, and sliding connection is placed in avoiding space. Fixed part is used to adjust and lock first, second assembly part. This design makes the relative position of clamping part and connecting part can be continuously, linearly adjusted, when the distance between door body changes, installer does not need to change the installation position of linkage member on door body, after loosening fixed part to adjust relative position, it can be relocked, and during adjustment process, linkage assembly and door top rail or baffle have no relative lateral movement, avoid bumping and interference when adjusting traditional U-shaped linkage member.

Description

Technical Field

[0001] This utility model relates to the field of linkage door accessories technology, and in particular to a linkage component. Background Technology

[0002] In traditional door linkage systems, the synchronous opening and closing of multiple doors is typically achieved through a linkage assembly located at the top of the doors. This linkage assembly mainly includes clamps for holding the guide strip of the middle door and linkage components for fixing to the outer doors. The clamps and linkage components are fixed to each other and installed at both ends of the top of the outer doors.

[0003] However, existing linkage components have a significant drawback: the relative position between the clamp and the linkage is fixed and cannot be adjusted. When the installation spacing between door panels changes due to building structure or long-term use, this fixed structure cannot adapt, leading to uneven transmission or abnormal noise. To solve this problem, existing technologies typically use a whole-body adjustment of the linkage's installation position on the outer door for fine-tuning. However, since the top of the linkage door usually has spaced tracks and baffles to cover the tracks, the linkage is often designed in a U-shape to avoid these baffles. During adjustment, the side arm of this U-shape is prone to bumping or interfering with the baffle at the top of the door, making the adjustment process very difficult, or even impossible, severely affecting the product's applicability and ease of installation and maintenance. Furthermore, the U-shaped structure has limited space, making it difficult for the linkage to be universally compatible with door panels of different widths. That is, the wider the door panel and the larger the installation spacing, the larger the adjustment position required for the linkage, and the U-shaped structure will interfere with the baffle. Utility Model Content

[0004] The purpose of this utility model is to disclose a linkage component that can conveniently and accurately adjust the relative position between the linkage component and the clamping component without interfering with the top structure of the door, so as to adapt to different door spacing requirements.

[0005] To achieve the above objectives, this utility model discloses a linkage component, comprising: a clamping component, the clamping component including a clamping part for clamping a transmission belt, a longitudinally extending first extension, and a first mounting part disposed at the end of the first extension; a connecting component, the connecting component including a connecting part for connecting a linkage door, a longitudinally extending second extension, and a second mounting part disposed at the end of the second extension; the second mounting part is slidably connected to the first mounting part, allowing the clamping component and the connecting component to slide relative to each other; a fixing member, the fixing member being used to lock the first mounting part and the second mounting part after adjustment, fixing their relative positions; wherein, the first extension and the second extension are parallel to each other and arranged opposite to each other, forming a longitudinal clearance space between them, the sliding connection between the first mounting part and the second mounting part is configured within the clearance space, and the sliding direction of the two is set to be able to change the lateral distance between the first extension and the second extension, thereby adjusting the width of the clearance space.

[0006] By adopting the above solution, and designing the first assembly part of the clamping component and the second assembly part of the connecting component as a sliding pair structure that can slide against each other, continuous and linear adjustment of the relative position between the clamping part and the connecting part is achieved. When the distance between the door panels changes, the installer does not need to change the installation position of the linkage component on the door panel; they only need to loosen the fixing piece, slide to adjust the relative position of the clamping component and the connecting component, and then re-lock it. Since the sliding adjustment action occurs within the clearance space between the two extensions, there is no relative lateral movement between the first and second extensions of the linkage component and the track or baffle at the top of the door during the adjustment process. Therefore, the collision and interference between the side arm and the baffle that occurs with traditional U-shaped linkage components during lateral adjustment is effectively avoided.

[0007] Furthermore, the slide groove includes a base plate, the two sides of the base plate are folded upward to form a pair of opposing flanges, and the flanges form a slide track; the slider includes a body, the two sides of the body extend outward to form a pair of flanges, and the flanges slide in cooperation with the slide track.

[0008] By adopting the above scheme, the flange acts as a reinforcing rib, improving the sliding groove's resistance to bending and torsional deformation. When the fastener is locked, the locking force is transmitted to the flange through the slider body and the flange. Since the flange and the base plate are integrally formed, the stress-bearing area is large, and the stress distribution is more uniform, avoiding stress concentration that could lead to localized deformation and ensuring long-term reliability. The flange is confined within the sliding groove formed by the flange, further improving the sliding stability of both.

[0009] Furthermore, the bottom of the slide is provided with an upwardly protruding first abutment portion, and the flange is provided with a downwardly recessed second abutment portion, the first abutment portion and the second abutment portion engaging with each other.

[0010] By adopting the above scheme, the interlocking structure forms a mechanical interlock in the horizontal direction. Even if the fixing part is slightly loose, the cooperation between the protruding and recessed abutment parts can effectively limit the slight lateral wobbling of the slider in the groove, thereby enhancing the structural rigidity and stability of the entire linkage assembly under stress and reducing noise and wear.

[0011] Furthermore, a pressure plate is provided on the main body of the slider above the flange, and the two sides of the pressure plate extend downward and cover the outer side of the flange. A limiting groove is formed between the pressure plate and the flange, and the flange is inserted into the limiting groove.

[0012] By adopting the above solution, the downward-extending portion of the pressure plate, together with the lower flange, tightly clamps the flange of the slide groove from both the inner and outer sides. This is equivalent to adding a lateral constraint to the sliding pair, effectively eliminating the lateral wobble gap between the slider and the slide groove. This makes the component more stable under load, reducing abnormal noise and wear during operation, and improving the rigidity and overall feel of the product. At the same time, the slider is difficult to dislodge from the slide groove, achieving extremely high safety and reliability.

[0013] Furthermore, a first waist-shaped hole is provided on the base plate of the slide groove, and a corresponding fixing hole is provided on the slider. The fixing member passes through the first waist-shaped hole and is connected to the fixing hole. The length direction of the first waist-shaped hole is parallel to the sliding direction of the slider.

[0014] By adopting the above solution, stepless adjustment of the relative position between the clamping component and the connecting component is achieved. Installers can precisely fix the component in any desired position according to the actual spacing between the doors, perfectly solving the core defect of traditional fixed structures that cannot adapt to changes in spacing.

[0015] Furthermore, a second oblong hole is provided on the connecting part, and the length direction of the second oblong hole is parallel to the sliding direction between the clamping component and the connecting component.

[0016] By adopting the above solution, the second oblong hole provides a second, independent adjustment dimension. When the door spacing changes too much and the adjustment range of the internal sliding pair is insufficient to match, the screws fixing the connecting part to the door can be loosened, and the second oblong hole can be used for auxiliary adjustment, which greatly expands the total adjustment range of the entire component.

[0017] Furthermore, the length direction of the second oblong hole is parallel to the opening direction of the linkage door.

[0018] By adopting the above solution, it is beneficial to assemble the linkage door and ensure the synchronization between multiple doors.

[0019] Furthermore, the clamping part includes a clamping groove, and a support rod is vertically connected to the bottom of the clamping groove for the transmission belt to be wound around the support rod and constrained within the clamping groove.

[0020] By adopting the above solution, the transmission belt is completely contained in a three-sided surrounding groove, and the transmission belt is wrapped around the support rod, forming a huge contact arc surface, which reduces the problem of transmission belt slippage and step loss, and makes the door operation more precise and powerful.

[0021] Furthermore, the inner sides of both side walls of the clamping groove are provided with a plurality of abutment ribs protruding toward the support rod, the abutment ribs being used to increase the friction between the abutment ribs and the transmission belt wound around the support rod.

[0022] By employing the above-mentioned method, this high pressure allows the abutment ribs to slightly bite into or embed into the relatively soft surface of the drive belt, forming a mechanical interlocking effect similar to gear meshing. The resulting anti-slip friction is far greater than the force generated by pure friction on a flat surface, effectively resisting the enormous inertial force and resistance generated when the door opens and closes, and essentially eliminating slippage and swaying of the drive belt.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The relative positions of the linkage and clamping components can be conveniently and precisely adjusted without interfering with the top structure of the door to adapt to different door spacing requirements. By designing the first assembly part of the clamping component and the second assembly part of the connecting component as a sliding pair structure that can slide against each other, continuous and linear adjustment of the relative position between the clamping part and the connecting part is achieved. 2. When the spacing between the doors changes, the installer does not need to change the installation position of the linkage on the door. They only need to loosen the fixing parts, slide to adjust the relative position of the clamping components and the connecting components, and then tighten them again. 3. Since the sliding adjustment action occurs within the clearance space between the two extensions, there is no relative lateral movement between the first and second extensions of the linkage component and the track or baffle at the top of the door during the adjustment process. This effectively avoids the collision and interference between the side arm and the baffle of the traditional U-shaped linkage component during lateral adjustment, thus improving the applicability of the product and the convenience of installation and maintenance. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 3 This is a three-dimensional structural diagram of an embodiment of the present utility model; Figure 4 This is an exploded structural diagram of an embodiment of the present utility model; Figure 5 This is a cross-sectional structural diagram of an embodiment of the present utility model.

[0026] Explanation of key figure labels: 100. Clamping assembly; 110. Clamping part; 111. Clamping groove; 112. Side wall; 113. Abutment rib; 114. Support rod; 120. First extension; 130. First assembly part; 131. Slide groove; 132. Base plate; 133. Flanged edge; 134. Slide track; 135. First abutment part; 136. First oblong hole; 200. Connecting assembly; 210. Connecting part; 211. Second oblong hole; 220. Second extension; 230. Second assembly part; 231. Slider; 232. Main body; 233. Flange; 234. Second abutment part; 235. Pressure plate; 236. Covering edge; 237. Limiting groove; 238. Fixing hole; 300. Fixing member; 400. Baffle. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0030] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0031] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0032] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0033] Please refer to Embodiment 1 of this utility model. Figures 1 to 5 As shown, a linkage component is provided, mainly used in a linkage door system to achieve synchronous opening and closing of multiple doors. The core improvement of this linkage component lies in providing a relative position adjustment function between the clamping component and the connecting component, thereby adapting to changes in the door installation spacing and avoiding interference with the track or baffle 400 at the top of the door during the adjustment process.

[0034] Reference Figures 1 to 3The linkage assembly mainly includes a clamping assembly 100, a connecting assembly 200, and a fixing member 300. The clamping assembly 100 is used to clamp and drive the transmission belt, which is usually a flexible guide belt. In this embodiment 1, the clamping assembly 100 includes a clamping part 110, a first extension part 120, and a first assembly part 130. The clamping part 110 is specifically a U-shaped or C-shaped clamping groove 111. The inner sides of the two side walls 112 of the clamping groove 111 are provided with a plurality of abutment ribs 113 protruding towards the inside of the clamping groove. These abutment ribs 113 are preferably continuous or intermittent sawtooth, dotted, or strip-shaped protrusions, used to increase the friction with the surface of the transmission belt. A support rod 114 is vertically connected to the bottom of the clamping groove 111. When the transmission belt is installed, it first passes around the support rod 114 and is then constrained within the clamping groove 111. The support rod 114 and the bottom of the clamping groove 111 together form a path for the transmission belt to be wound, which greatly increases the contact area between the transmission belt and the clamping part 110 and effectively prevents slippage.

[0035] The first extension 120 extends longitudinally upward from the top of the clamping portion 110. The first extension 120 is typically a plate-like structure, and its length is designed according to the top space of the door. The first assembly portion 130 is located at the end of the first extension 120, that is, at the end away from the clamping portion 110.

[0036] The connecting assembly 200 is used for fixed connection with the outer door body. It includes a connecting part 210, a second extension part 220, and a second assembly part 230. The connecting part 210 is typically a mounting plate, which is fixed to the top of the door body by bolts or other fasteners. In this embodiment 1, a second oblong hole 211 is provided on the connecting part 210. The length direction of the second oblong hole 211 is set to be parallel to the opening direction of the linkage door, that is, the moving direction of the door body. This helps to make initial longitudinal position fine adjustments during installation and ensures the synchronization between multiple doors.

[0037] The second extension 220 extends longitudinally upward from the connecting portion 210. The second extension 220 is also a plate-like structure, parallel to and opposite to the first extension 120, and both have approximately the same length. The second mounting portion 230 is located at the end of the second extension 220. The first extension 120 and the second extension 220 are parallel to each other and opposite to each other, forming a longitudinal, variable-width clearance space between them. The sliding connection portion of the first mounting portion 130 and the second mounting portion 230 is disposed inside this clearance space, and the clamping assembly 100 and the connecting assembly 200 are slidably connected through the first mounting portion 130 and the second mounting portion 230.

[0038] In this embodiment 1, see Figure 4-5As shown, the second assembly part 230 is specifically a slide groove 131, and the first assembly part 130 is specifically implemented as a slider 231. The clamping assembly 100 and the connecting assembly 200 are slidably connected through the slide groove 131 and the slider 231. The sliding direction of the slide groove 131 and the slider 231 is set to be able to change the lateral distance between the first extension 120 and the second extension 220, that is... Figure 1 The distance in the left and right directions is adjusted to change the width of the clearance space. This means that when sliding occurs, the relative position of the clamping part 110 and the connecting part 210 in the horizontal direction changes continuously.

[0039] In a specific embodiment, the slide groove 131 includes a horizontal base plate 132. The two sides of the base plate 132 are folded upwards to form a pair of opposing and parallel flanges 133. The space between the two flanges 133 forms a slide track 134. The bottom of the slide track 134, i.e., the upper surface of the base plate 132, is provided with an upwardly protruding first abutment portion 135. The first abutment portion 135 can be a continuous or intermittent ridge, protrusion, etc. A first oblong hole 136 is also provided on the base plate 132, its length direction being parallel to the extension direction of the slide groove 131, i.e., the sliding direction. The slider 231 includes a main body 232. The two sides of the main body 232 extend outwards horizontally to form a pair of flanges 233. The dimensions of the flanges 233 match the slide track 134, allowing them to be embedded within the slide track 134 and slide in contact with the inner side of the flanges 133. The lower surface of the flange 233, which is the surface that contacts the slide 134, has a downwardly recessed second abutment 234 corresponding to the first abutment 135. The second abutment 234 and the first abutment 135 engage with each other to form a concave-convex fit, thereby limiting the slight wobbling of the slider 231 in the horizontal direction. On the main body 232, a pressure plate 235 is provided above the flange 233. The two sides of the pressure plate 235 extend outward to form covering edges 236, which cover the flange 133 of the slide 131 from the outside. A limiting groove 237 is formed between the pressure plate 235 and the flange 233 below, and the top of the flange 133 is inserted into the limiting groove 237. This structure makes the slider 231 firmly restricted on the slide 131, making it difficult to get out, and greatly reducing the gap of left and right wobbling.

[0040] It should be noted that the fastener 300 is typically a combination of bolts and nuts. The fastener 300 passes sequentially through the first oblong hole 136 on the slide groove 131 and the fixing hole 238 on the slider 231. When the fastener 300 is tightened, the slider 231 and the slide groove 131 are pressed and fixed, and their relative positions are locked. When adjustment is required, the fastener 300 is loosened, and the slider 231 can slide within the slide groove 131 along the length direction of the first oblong hole 136, i.e., the sliding direction.

[0041] It should be noted that in this embodiment 1, the fixing hole 238 is a threaded hole, which engages with the bolt part of the fixing member 300 to achieve a locking effect.

[0042] During initial installation: The connecting part 210 of the connecting assembly 200 is initially fixed to the top of the outer door body using bolts and the second oblong hole 211. The clamping part 110 of the clamping assembly 100 clamps the drive belt of the middle door. At this time, the clamping assembly 100 and the connecting assembly 200 are connected together through the cooperation of the slide groove 131 and the slider 231, but the fixing member 300 is not fully locked.

[0043] When a mismatch in the spacing between the door panels is found, causing poor transmission, the installer simply needs to loosen the fixing component 300. Then, push the clamping assembly 100 or the connecting assembly 200 along the sliding direction. Since the sliding occurs within the clearance space, there is no relative lateral movement between the first extension 120 and the second extension 220 and the track or baffle 400 at the top of the door, thus completely avoiding collisions between the side arm of the traditional U-shaped component and the baffle 400. Observe the fit of the door panels until the smoothest position is found.

[0044] After adjustment, tighten the fastener 300. The locking force of the fastener 300 is transmitted through the pressure plate 235 and flange 233 of the slider 231 to the flange 133 and base plate 132 of the slide groove 131. Due to the reinforcing effect of the flange 133 and the covering effect of the limiting groove 237, the connection is highly rigid and there is no risk of loosening. At this time, the engagement of the first abutment part 135 and the second abutment part 234 further prevents micro-movement.

[0045] If the door spacing changes significantly and the adjustment range of the sliding pair alone is insufficient, the fixing bolts of the connecting part 210 can be loosened, and the second oblong hole 211 can be used for auxiliary adjustment in the door opening direction to expand the total adjustment range.

[0046] Through the design of the specific structure described above, the linkage component of this utility model achieves the following beneficial effects: 1. Interference-free adjustment: The adjustment action occurs entirely within the clearance space formed by the first extension 120 and the second extension 220. The outer contour of the component and the top structure of the door do not move laterally relative to each other, thus completely solving the interference problem during the adjustment process.

[0047] 2. Precise stepless adjustment: Through the sliding pair cooperation of the slide groove 131 and the slider 231, and the design of the first waist-shaped hole 136, the relative position between the clamping part 110 and the connecting part 210 is continuously and linearly stepless adjusted with high precision.

[0048] 3. Stable connection: The flange 133 structure of the slide groove 131 enhances rigidity; the design of the pressure plate 235 and the limiting groove 237 eliminates wobbling gaps; the engagement of the abutment parts 135 and 234 enhances the anti-fretting ability; the stress distribution is uniform when the fastener 300 is locked, ensuring the reliability of long-term use.

[0049] 4. Excellent anti-slip performance: The support rod 114 and the abutment rib 113 of the clamping part 110 work together to provide huge friction and mechanical interlocking effect, effectively preventing the transmission belt from slipping.

[0050] 5. Wide adjustment range: The combination of sliding pair adjustment and the adjustment of the second oblong hole 211 of the connecting part provides a dual adjustment means, with a wide total adjustment range and stronger adaptability.

[0051] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A linkage component, characterized in that, include: The clamping assembly (100) includes a clamping portion (110) for clamping a transmission belt, a longitudinally extending first extension portion (120), and a first mounting portion (130) disposed at the end of the first extension portion (120). The connecting assembly (200) includes a connecting portion (210) for connecting a linkage door, a longitudinally extending second extension portion (220), and a second mounting portion (230) disposed at the end of the second extension portion (220); the second mounting portion (230) is slidably connected to the first mounting portion (130), so that the clamping assembly (100) and the connecting assembly (200) can slide relative to each other; A fastener (300) is used to lock the first assembly part (130) and the second assembly part (230) after adjustment, thereby fixing their relative positions. The first extension (120) and the second extension (220) are arranged parallel to each other and opposite to each other, forming a longitudinal clearance space between them. The sliding connection between the first assembly part (130) and the second assembly part (230) is arranged in the clearance space, and the sliding direction of the two is set to change the lateral distance between the first extension part (120) and the second extension part (220), thereby adjusting the width of the clearance space.

2. The linkage component according to claim 1, characterized in that, One of the first assembly part (130) and the second assembly part (230) is configured as a slide groove (131), and the other is configured as a slider (231) adapted to the slide groove (131). The slide groove (131) and the slider (231) form a sliding pair.

3. A linkage component according to claim 2, characterized in that, The slide (131) includes a base plate (132), and the two sides of the base plate (132) are folded upward to form a pair of opposing flanges (133), and the flanges (133) form a slide (134). The slider (231) includes a body (232), and the two sides of the body (232) extend outward to form a pair of flanges (233), which slide in cooperation with the slide rail (134).

4. A linkage component according to claim 3, characterized in that, The bottom of the slide (134) is provided with an upwardly protruding first abutment (135), and the flange (233) is provided with a downwardly recessed second abutment (234), and the first abutment (135) and the second abutment (234) engage with each other.

5. A linkage component according to claim 3 or 4, characterized in that, A pressure plate (235) is provided on the main body (232) of the slider (231) above the flange (233). The two sides of the pressure plate (235) extend downward and cover the outer side of the flange (133). A limiting groove (237) is formed between the pressure plate (235) and the flange (233), and the flange (133) is inserted into the limiting groove (237).

6. A linkage component according to claim 3 or 4, characterized in that, The slide groove (131) has a first waist-shaped hole (136) on its base plate (132), and the slider (231) has a corresponding fixing hole (238). The fixing member (300) passes through the first waist-shaped hole (136) and is connected to the fixing hole (238). The length direction of the first waist-shaped hole (136) is parallel to the sliding direction of the slider (231).

7. A linkage component according to claim 1, characterized in that, The connecting part (210) is provided with a second waist-shaped hole (211), the length direction of which is parallel to the sliding direction between the clamping assembly (100) and the connecting assembly (200).

8. A linkage component according to claim 7, characterized in that, The length direction of the second waist-shaped hole (211) is parallel to the opening direction of the linkage door.

9. A linkage component according to claim 1, characterized in that, The clamping part (110) includes a clamping groove (111), and a support rod (114) is vertically connected to the bottom of the clamping groove (111) for the transmission belt to be wound around the support rod (114) and constrained in the clamping groove (111).

10. A linkage component according to claim 9, characterized in that, The inner sides of the two side walls (112) of the clamping groove (111) are provided with a plurality of abutment ribs (113) protruding toward the support rod (114), and the abutment ribs (113) are used to increase the friction between the abutment ribs and the transmission belt wrapped around the support rod (114).

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