Adjustable headstock assembly

Abstract

This utility model belongs to the technical field of door fittings, and particularly relates to an adjustable hinge assembly, including a mounting base, a spindle, and a driving device. A slider is movably connected to the mounting base. The spindle includes a fixed section and a movable section arranged coaxially. The outer side of the fixed section has knurled lines arranged axially along the mounting hole. The outer side of the movable section has several intersecting grooves, which form oil reservoirs on the movable section. The driving device is mounted on the mounting base and is connected to the slider, enabling the slider to slide relative to the mounting base in both the axial and radial directions of the spindle. By driving the slider to move radially along the spindle, the spindle moves relative to the upper shaft hole of the door frame, allowing for fine-tuning of the spindle position without disassembling any fittings, thus avoiding issues such as uneven rotation or unsightly door gaps caused by misalignment.

Description

Technical Field

[0001] This utility model belongs to the technical field of door accessories, and particularly relates to an adjustable hinge assembly. Background Technology

[0002] The top pivot assembly is the upper pivot in a hinged door. The upper pivot of the hinged door and the upper pivot hole of the door frame form a rotating pair to realize the opening or closing of the hinged door. When the upper pivot hole and the lower pivot hole of the door frame are not on the same axis, in order to ensure the smooth opening of the hinged door and the aesthetics of the door gap, it is difficult to avoid disassembling, realigning and installing the pivot body or pivot hole. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable top axis assembly, which aims to solve the technical problems in the prior art.

[0004] To achieve the above objectives, the adjustable top axis assembly provided in this utility model embodiment includes a mounting base, a mandrel, and a driving device. A slider is movably connected to the mounting base. The mandrel includes a fixed section and a movable section arranged coaxially. The slider has a mounting hole that is interference-fitted with the fixed section. The outer side of the fixed section is provided with knurled straight lines arranged axially along the mounting hole. The outer side of the movable section is recessed with a plurality of crisscrossing grooves. The plurality of grooves form an oil reservoir on the movable section. The driving device is mounted on the mounting base and is connected to the slider for transmission, and is capable of driving the slider to slide relative to the mounting base in the axial and radial directions of the mandrel.

[0005] Optionally, it further includes a pair of first adjusting plates, which are disposed opposite each other on the mounting base, with an inner cavity for the slider to move, and a second adjusting plate stacked on the outer side. The slider has movable shafts protruding outward on both sides. The first adjusting plate has a vertically arranged first movable groove, and the second adjusting plate has an inclinedly arranged second movable groove. The movable shafts pass through the first movable groove and the second movable groove sequentially from the inside to the outside. The driving device includes a first driving part and a second driving part. The first driving part acts on the first adjusting plate and the second adjusting plate, and can drive the first adjusting plate and the second adjusting plate to slide synchronously in the radial direction of the spindle, thereby driving the spindle to slide in the radial direction. The second driving part acts on the second adjusting plate, and can drive the second adjusting plate to slide relative to the first adjusting plate in the radial direction of the spindle, thereby driving the spindle to slide in the axial direction.

[0006] Optionally, the driving device further includes a pair of push-pull plates, which are fixed to the ends of the first adjusting plate. The first driving part includes a first driving block and a first screw. The first driving block is fixedly connected to the mounting base and located in the cavity. First connecting rods extend outward from both sides. The first adjusting plate has a horizontally arranged first clearance groove, and the second adjusting plate has a horizontally arranged second clearance groove. The end of the first connecting rod passes through the first clearance groove and the second clearance groove, and its end is provided with a first retaining spring. The first screw is arranged in a horizontal direction, with its head located between the pair of push-pull plates and its tail threadedly engaged with the first driving block.

[0007] Optionally, the second driving part includes a second driving block and a second screw. The second driving block is located in the cavity and has second connecting rods extending outward on both sides. The first adjusting plate has a horizontally arranged third clearance groove. The second adjusting plate has a connecting through hole adapted to the second connecting rod. The end of the second connecting rod passes through the third clearance groove and the connecting through hole, and its end is provided with a second retaining spring. The second screw is arranged in a horizontal direction, with its head located between a pair of push-pull plates and its tail threadedly engaged with the second driving block.

[0008] Optionally, it also includes a wear-resistant plate, which has screw holes for the first screw and the second screw to pass through.

[0009] Optionally, each of the pair of push-pull tabs has a locking block protruding outward, and the first adjusting tab has a locking groove adapted to the locking block.

[0010] Optionally, it also includes a limiting block, which is located at one end of the mounting base away from the push-pull plate and within the cavity.

[0011] Optionally, there are four movable shafts in total, two of which are located on one side of the slider and the other two are located on the other side of the slider; the first adjusting plate has two parallel first movable grooves and the second adjusting plate has two parallel second movable grooves.

[0012] Optionally, the mounting base has a waist-shaped hole, and the spindle passes through the waist-shaped hole at the end away from the slider, with its end rotatably connected to the shaft hole of the door body.

[0013] Optionally, the mounting base is provided with a mounting hole for fixing the mounting base to the upper end of the door.

[0014] The adjustable pivot assembly provided in this utility model embodiment has at least one of the following technical effects: the slider is driven by the driving device to move along the radial direction of the pivot, thereby moving the pivot relative to the upper pivot hole of the door frame. This allows for fine adjustment of the pivot position without disassembling any parts, avoiding the situation of poor rotation or unsightly door gaps caused by misalignment. On the other hand, the oil reservoir stores lubricating oil in the moving section of the pivot, providing lubrication transition for the pivot during adjustment and reducing the situation of jamming caused by friction between the pivot and the upper pivot hole when the pivot moves. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the adjustable top axis assembly provided in an embodiment of the present utility model.

[0017] Figure 2 for Figure 1 The longitudinal section view.

[0018] Figure 3 An exploded view of the adjustable top axis assembly provided in this embodiment of the utility model.

[0019] Figure 4 A schematic diagram of the mandrel provided in an embodiment of this utility model.

[0020] The following are the labeling elements in the figure:

[0021] 1—Assembly base; 11—Slider; 111—Assembly hole

[0022] 112—Moving shaft; 12—Limiting block; 13—Oval hole

[0023] 2—Mandrel 21—Fixed Section 211—Straight Knurling

[0024] 22—Moving section 221—Cable trough 3—Drive device

[0025] 31—First drive unit; 311—First drive block; 312—First screw

[0026] 313—First connecting rod; 32—Second drive unit; 321—Second drive block

[0027] 322—Second screw; 323—Second connecting rod; 33—Push-pull plate body

[0028] 331—Wear-resistant plate; 332—Clamping block; 4—First adjusting plate

[0029] 41—First movable slot; 42—First clearance slot; 43—Third clearance slot

[0030] 5—Second adjusting plate; 51—Second movable groove; 52—Second clearance groove

[0031] 53—Connecting perforation. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0033] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 embodiment of the invention according to the specific circumstances.

[0036] In one embodiment of this utility model, such as Figures 1-4As shown, an adjustable top shaft assembly is provided, including a mounting base 1, a spindle 2, and a drive device 3. A slider 11 is movably connected to the mounting base 1. The spindle 2 includes a fixed section 21 and a movable section 22 arranged coaxially. The slider 11 has a mounting hole 111 that is interference-fitted with the fixed section 21. The outer side of the fixed section 21 is provided with knurled straight knurling 211 arranged axially along the mounting hole 111. The outer side of the movable section 22 is recessed with a plurality of crisscrossing grooves 221. The plurality of grooves 221 form an oil reservoir on the movable section 22. The drive device 3 is mounted on the mounting base 1 and is connected to the slider 11 for transmission, and can drive the slider 11 to slide relative to the mounting base 1 in the axial and radial directions of the spindle 2. Specifically, several crisscrossing grooves 221 form several recessed diamond-shaped oil storage grooves on the movable section 22. The woven groove structure 221 increases the coverage area of ​​the lubricating oil, thereby reducing the friction between the spindle 2 and the upper shaft hole of the door frame. The spindle 2 is connected to the slider 11 through the straight knurled knurling 211 on the fixed section 21. The spindle 2 and the slider 11 are independently processed through the assembly structure, thereby reducing the processing difficulty of the groove 221. When the drive device 3 drives the spindle 2 to move axially, the spindle 2 can be inserted and removed from the upper shaft hole of the door frame in the axial direction, which facilitates the disassembly and assembly of the door.

[0037] In one embodiment of this utility model, such as Figures 2-3As shown, it also includes a pair of first adjusting plates 4, which are disposed opposite each other on the mounting base 1. The inner side of the first adjusting plates 4 has a cavity for the slider 11 to move, and the outer side is stacked with second adjusting plates 5. The slider 11 has movable shafts 112 protruding outward on both sides. The first adjusting plates 4 have vertically arranged first movable grooves 4, and the second adjusting plates 5 have inclinedly arranged second movable grooves 51. The movable shafts 112 pass through the first movable grooves 4 and the second movable grooves 51 from the inside to the outside. The driving device 3 includes a first driving part 31 and a second driving part 32. The first driving part 31 acts on the first adjusting plates 4 and the second adjusting plates 5, and can drive the first adjusting plates 4 and the second adjusting plates 5 to slide synchronously in the radial direction of the spindle 2, thereby driving the spindle 2 to slide in the radial direction. The second driving part 32 acts on the second adjusting plate 5, and can drive the second adjusting plate 5 to slide relative to the first adjusting plate 4 in the radial direction of the spindle 2, thereby driving the spindle 2 to slide in the axial direction. Specifically, the axial direction of the spindle 2 is vertical, and the radial direction of the spindle 2 is horizontal. When the first adjusting plate 4 and the second adjusting plate 5 slide synchronously in the horizontal direction, the first movable groove 4 and the second movable groove 51 are relatively stationary. The vertically arranged first movable groove 4 acts on the movable shaft 112 in the horizontal direction, thereby driving the spindle 2 on the slider 11 to slide in the horizontal direction. When the second adjusting plate 5 slides in the horizontal direction relative to the first adjusting plate 4, the second movable groove 51 acts on the movable shaft 112 in the inclined direction and cooperates with the relatively stationary first movable groove 4 to drive the movable shaft 112 to drive the spindle 2 on the slider 11 to slide in the vertical direction.

[0038] In one embodiment of this utility model, such as Figures 2-3As shown, the driving device 3 further includes a pair of push-pull plates 33, which are fixed to the ends of the first adjusting plate 4. The first driving part 31 includes a first driving block 311 and a first screw 312. The first driving block 311 is fixedly connected to the mounting base 1 and located in the cavity. First connecting rods 313 extend outward from both sides. The first adjusting plate 4 has a horizontally arranged first clearance groove 42, and the second adjusting plate 5 has a horizontally arranged second clearance groove 52. The end of the first connecting rod 313 passes through the first clearance groove 42 and the second clearance groove 52, and its end is provided with a first retaining spring. The first screw 312 is arranged in a horizontal direction, with its head located between the pair of push-pull plates 33 and its tail threadedly engaged with the first driving block 311. Specifically, the first screw 312 is an internal hexagonal flat-head screw. During adjustment, the first screw 312 is turned with a hexagonal wrench, which is simple to operate. The first connecting rod 313 is used to fix the first adjusting piece 4 and the second adjusting piece 5, so that the first adjusting piece 4 and the second adjusting piece 5 can slide relative to the mounting base 1. The first clearance groove 42 and the second clearance groove 52 arranged horizontally are used to realize the first adjusting piece 4 and the second adjusting piece 5 sliding synchronously in the horizontal direction relative to the first driving block 311.

[0039] In one embodiment of this utility model, such as Figures 2-3 As shown, the second driving part 32 includes a second driving block 321 and a second screw 322. The second driving block 321 is located inside the cavity, with second connecting rods 323 extending outward on both sides. The first adjusting plate 4 has a horizontally arranged third clearance groove 43. The second adjusting plate 5 has a connecting through hole 53 adapted to the second connecting rod. The end of the second connecting rod 323 passes through the third clearance groove 43 and the connecting through hole 53, and its end is provided with a second retaining spring. The second screw 322 is arranged horizontally, with its head located between a pair of push-pull plates 33, and its tail threadedly engaged with the second driving block 321. Specifically, the second screw 322 is an internal hexagonal flathead screw. During adjustment, the second screw 322 is turned with a hexagonal wrench, which is simple to operate. The second connecting rod 323 is used to fix the first adjusting plate 4 and the second adjusting plate 5, and the horizontally arranged third clearance groove 43 and the connecting through hole 53 are used to allow the second adjusting plate 5 to slide relative to the first adjusting plate 4 in the horizontal direction.

[0040] In one embodiment of this utility model, such as Figures 2-3 As shown, it also includes a wear-resistant plate 331, which has screw holes for the first screw 312 and the second screw 322 to pass through. During adjustment, the heads of the first screw 312 and the second screw 322 respectively engage with the wear-resistant plate 331 through friction, which helps to improve the service life of the push-pull plate body 33.

[0041] In one embodiment of this utility model, such as Figures 2-3 As shown, each of the pair of push-pull tabs has a locking block 332 protruding outward, and the first adjusting tab 4 has a locking groove that matches the locking block 332. The structure is simple and easy to manufacture.

[0042] In one embodiment of this utility model, such as Figures 2-3 As shown, it also includes a limiting block 12, which is located at the end of the mounting base 1 away from the push-pull plate and within the cavity. The limiting block 12 acts on the slider 11 to limit the horizontal travel of the slider 11.

[0043] In one embodiment of this utility model, such as Figures 2-3 As shown, there are four movable shafts 112 in total. Two of the movable shafts 112 are located on one side of the slider 11, and the other two are located on the other side of the slider 11. The first adjusting plate 4 has two parallel first movable grooves 4, and the second adjusting plate 5 has two parallel second movable grooves 51. This helps to improve the smoothness of the slider 11's movement.

[0044] In one embodiment of this utility model, such as Figures 2-3 As shown, the mounting base 1 has a waist-shaped hole 13. The spindle 2 passes through the waist-shaped hole 13 at the end away from the slider 11, and its end is rotatably connected to the shaft hole of the door body. The mounting base 1 has a mounting hole for fixing the mounting base 1 to the upper end of the door. Specifically, the upper end of the door has a screw thread hole corresponding to the mounting hole, and the mounting base 1 is connected to the upper end of the door by screws.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable top axis assembly, characterized in that: The device includes a mounting base, a mandrel, and a drive unit. A slider is movably connected to the mounting base. The mandrel includes a fixed section and a movable section arranged coaxially. The slider has an assembly hole that is interference-fitted with the fixed section. The outer side of the fixed section has knurled lines arranged axially along the assembly hole. The outer side of the movable section has a plurality of crisscrossing grooves. The grooves form an oil reservoir on the movable section. The drive unit is mounted on the mounting base and is connected to the slider for transmission, and can drive the slider to slide relative to the mounting base in the axial and radial directions of the mandrel.

2. The adjustable top axis assembly according to claim 1, characterized in that: It also includes a pair of first adjusting plates, which are disposed opposite each other on the mounting base. The inner side of the first adjusting plates has a cavity for the slider to move, and the outer side has a second adjusting plate stacked on it. The slider has movable shafts protruding outward on both sides. The first adjusting plate has a vertically arranged first movable groove, and the second adjusting plate has an inclinedly arranged second movable groove. The movable shafts pass through the first movable groove and the second movable groove from the inside to the outside. The driving device includes a first driving part and a second driving part. The first driving part acts on the first adjusting plate and the second adjusting plate, and can drive the first adjusting plate and the second adjusting plate to slide synchronously in the radial direction of the spindle, thereby driving the spindle to slide in the radial direction. The second driving part acts on the second adjusting plate, and can drive the second adjusting plate to slide relative to the first adjusting plate in the radial direction of the spindle, thereby driving the spindle to slide in the axial direction.

3. The adjustable top axis assembly according to claim 2, characterized in that: The driving device further includes a pair of push-pull plates, which are fixed to the ends of the first adjusting plate. The first driving part includes a first driving block and a first screw. The first driving block is fixedly connected to the mounting base and located in the cavity. First connecting rods extend outward from both sides. The first adjusting plate has a horizontally arranged first clearance groove, and the second adjusting plate has a horizontally arranged second clearance groove. The end of the first connecting rod passes through the first clearance groove and the second clearance groove, and its end is provided with a first retaining spring. The first screw is arranged in a horizontal direction, with its head located between the pair of push-pull plates and its tail threadedly engaged with the first driving block.

4. The adjustable top axis assembly according to claim 3, characterized in that: The second driving part includes a second driving block and a second screw. The second driving block is located in the cavity and has second connecting rods extending outward on both sides. The first adjusting plate has a horizontally arranged third clearance groove. The second adjusting plate has a connecting through hole adapted to the second connecting rod. The end of the second connecting rod passes through the third clearance groove and the connecting through hole, and its end is provided with a second retaining spring. The second screw is arranged in a horizontal direction, with its head located between a pair of push-pull plates and its tail threadedly engaged with the second driving block.

5. The adjustable top axis assembly according to claim 4, characterized in that: It also includes a wear-resistant plate, which has screw holes for the first screw and the second screw to pass through.

6. The adjustable top axis assembly according to claim 3, characterized in that: Each of the two push-pull plates has a locking block protruding outward, and the first adjustment plate has a locking groove that matches the locking block.

7. The adjustable top axis assembly according to claim 3, characterized in that: It also includes a limiting block, which is located at the end of the assembly base away from the push-pull plate and within the cavity.

8. The adjustable top axis assembly according to claim 2, characterized in that: There are four movable shafts in total, two of which are located on one side of the slider and the other two are located on the other side of the slider; the first adjusting plate has two parallel first movable grooves and the second adjusting plate has two parallel second movable grooves.

9. The adjustable top axis assembly according to claim 1, characterized in that: The mounting base has a waist-shaped hole, and the spindle passes through the waist-shaped hole at the end away from the slider, and its end is rotatably connected to the shaft hole of the door body.

10. The adjustable top axis assembly according to claim 1, characterized in that: The mounting base has mounting holes for fixing the mounting base to the upper end of the door.

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