Special screw for aluminum alloy sliding support

Abstract

The utility model discloses a special screw for an aluminum alloy sliding support, which relates to the technical field of special screws for sliding supports and comprises a screw rod, a screw head is fixedly mounted on the top surface of the screw rod, a mounting seat is fixedly mounted on the top surface of the screw head, and a cavity is formed in the screw rod. When the screw is used, the abutting columns slide outwards and abut against the inner wall of the open hole, so that the friction force between the screw rod and the open hole is increased, the possibility of looseness of the screw rod due to vibration is reduced, and through arrangement of the first spring, the screw rod is not prone to loosening due to vibration. When the aluminum alloy expands with heat and contracts with cold, the acting force of the first spring enables the abutting column to abut against the inner wall of the open hole all the time, and therefore possible looseness of the screw rod due to expansion with heat and contraction with cold is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sliding support special screw especially relates to a kind of aluminium alloy sliding support special screw. BACKGROUND

[0002] Aluminium alloy sliding support is a hardware fitting for door and window. It is mainly installed between door and window frame and door and window leaf, and is composed of multiple components. Its material is mainly aluminium alloy, which is light in weight and resistant to corrosion. The role of aluminium alloy sliding support is to support door and window leaf, so that door and window can be smoothly opened and closed, and can be kept open within a certain angle range. When installing, it is usually fixed by screw, which plays the role of bearing and supporting.

[0003] However, repeated opening and closing of door and window in daily use will cause vibration of aluminium alloy sliding support, which is transmitted to screw, and easily lead to screw loosening. In addition, the thermal expansion coefficients of aluminium alloy and screw are different, and internal stress may be generated due to different degrees of thermal expansion and contraction, which may lead to screw loosening. In view of this, the present application proposes a kind of aluminium alloy sliding support special screw. SUMMARY

[0004] The utility model aims at solving the shortcomings in the prior art, and proposes a kind of aluminium alloy sliding support special screw.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of aluminium alloy sliding support special screw, including screw rod, the top surface of the screw rod is fixedly installed with screw head, the top surface of the screw head is fixedly installed with mounting seat, the cavity is opened in the screw rod, the cavity is slidably connected with mobile seat and assembly seat respectively in the cavity, the first spring is installed between the mobile seat and assembly seat, the bottom surface of the assembly seat is fixedly installed with fixed rod, the side wall of the screw rod is symmetrically slidably connected with multiple abutting columns, the outer side of each abutting column is rotatably connected with link rod, and the other end of each link rod is rotatably connected to the outer side of fixed rod, the top surface of the screw rod is equipped with driving mechanism, and driving mechanism drives mobile seat to slide up and down.

[0007] Preferably, the driving mechanism includes screw rod, and the screw rod is threadedly connected to the top surface of the screw head, the top surface of the mobile seat is fixedly installed with socket, and one end of the screw rod penetrates the screw head and is movably connected in the socket, the mounting seat is provided with a slot, the other end of the screw rod penetrates the slot and is provided with mounting head, the outer side of the mounting seat is provided with limiting mechanism, and the limiting mechanism limits the axial sliding of the screw rod.

[0008] Preferably, the limiting mechanism comprises a limiting rod, and the limiting rod is slidingly connected to the outer side of the mounting base, and a second spring is arranged between the limiting rod and the outer side of the mounting base, and the outer side of the mounting head is provided with a ring groove, and one end of the limiting rod penetrates through the mounting base and is clamped in the ring groove.

[0009] Preferably, the side wall of the screw rod is symmetrically provided with a plurality of guide rails, and each abutting column is slidingly connected with a corresponding guide rail.

[0010] Preferably, the top wall of the screw rod is symmetrically provided with a plurality of guide blocks, and the moving seat and the assembly seat are slidingly connected with the guide blocks.

[0011] Preferably, the end of each abutting column away from the fixed rod is fixedly provided with a plurality of anti-skid nails, and the top surface of the mounting base and the mounting head is provided with a cross groove.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a driving mechanism, a moving seat, an assembly seat, a first spring, an abutting column and a connecting rod, which realize that the moving seat can compress the first spring and drive the assembly seat to slide down through the driving mechanism, so that the fixed rod slides down, and through the cooperation of the connecting rod, each abutting column slides outward and abuts against the inner wall of the opening, thereby increasing the friction between the screw rod and the opening, reducing the loosening of the screw rod due to vibration, and through the setting of the first spring, when the aluminum alloy expands and shrinks due to heat, the force of the first spring can make the abutting column always abut against the inner wall of the opening, thereby reducing the loosening of the screw rod due to thermal expansion and contraction.

[0014] 2. The utility model discloses a screw rod, a limiting rod and a second spring, which realize that the rotation of the screw rod can drive the moving seat to slide down, and through the limiting of the screw rod by the second spring and the limiting rod, the screw rod cannot slide axially, thereby limiting the screw rod and fixing the position of the moving seat, thereby ensuring the stable work of the device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model provides a structural schematic diagram of a special screw for aluminum alloy sliding support;

[0016] Figure 2 The utility model provides a structural schematic diagram of a special screw for aluminum alloy sliding support;

[0017] Figure 3 The utility model provides a structural schematic diagram of a special screw for aluminum alloy sliding support;

[0018] Figure 4The utility model provides a kind of special screw's limiting mechanism structural diagram of aluminium alloy sliding support.

[0019] In the drawing: 1, screw rod;2, screw head;3, mounting seat;4, cross slot;5, cavity;6, moving seat;7, assembly seat;8, first spring;9, guide block;10, fixed rod;11, guide rail;12, abutting column;13, link rod;14, stud;15, socket;16, slot;17, screw;18, mounting head;19, ring groove;20, limiting rod;21, second spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] The utility model provides technical scheme: as Figures 1-4 As shown in the drawing, a kind of special screw of aluminium alloy sliding support, including screw rod 1, the top surface of screw rod 1 is fixedly installed with screw head 2, the top surface of screw head 2 is fixedly installed with mounting seat 3, cavity 5 is set in screw rod 1, cavity 5 is slidably connected with moving seat 6 and assembly seat 7 respectively in sliding, first spring 8 is jointly installed between moving seat 6 and assembly seat 7, the bottom surface of assembly seat 7 is fixedly installed with fixed rod 10, the side wall of screw rod 1 is symmetrically slidably connected with multiple abutting columns 12, the outside of each abutting column 12 is rotatably connected with link rod 13, and the other end of each link rod 13 is rotatably connected on the outside of fixed rod 10, the top surface of screw rod 1 is equipped with driving mechanism, and driving mechanism drives moving seat 6 to slide up and down, it needs to be explained that, the height of one end of each link rod 13 rotatable in fixed rod 10 is always higher than the height of the other end, so as to be slid up and down by fixed rod 10, abutting column 12 is slid outward or inward by link rod 13.

[0022] Further, driving mechanism includes screw 17, and screw 17 is threadedly connected on the top surface of screw head 2, the top surface of moving seat 6 is fixedly installed with socket 15, and one end of screw 17 penetrates screw head 2 and is movably connected in socket 15, slot 16 is set in mounting seat 3, the other end of screw 17 passes through slot 16 and is installed with mounting head 18, limiting mechanism is installed on the outside of mounting seat 3, and limiting mechanism limits the axial sliding of screw 17, it needs to be explained that, screw 17 can be separated from screw head 2.

[0023] Further, the limiting mechanism comprises a limiting rod 20, the limiting rod 20 is slidably connected to the outer side of the mounting seat 3, a second spring 21 is arranged between the limiting rod 20 and the outer side of the mounting seat 3, the outer side of the mounting head 18 is provided with a ring groove 19, one end of the limiting rod 20 penetrates through the mounting seat 3 and is clamped in the ring groove 19, and the second spring 21 can make the limiting rod 20 abut against the ring groove 19, so that the axial sliding of the screw rod 17 is avoided.

[0024] Further, the side wall of the screw rod 1 is symmetrically provided with a plurality of guide rails 11, each abutting column 12 is slidably connected to the corresponding guide rail 11, and the guide rail 11 is used for limiting and guiding the abutting column 12, so that the abutting column 12 can only slide along the determined position.

[0025] Further, the top wall of the screw rod 1 is symmetrically provided with a plurality of guide blocks 9, and the moving seat 6 and the assembly seat 7 are slidably connected to the guide blocks 9, the guide blocks 9 are used for guiding the moving seat 6, and the screw rod 17 is conveniently inserted into the socket 15.

[0026] Further, the end, away from the fixed rod 10, of each abutting column 12 is fixedly provided with a plurality of anti-skid nails 14, the top surfaces of the mounting seat 3 and the mounting head 18 are provided with cross grooves 4, the cross grooves 4 are used for facilitating workers to install the device by using tools, and the anti-skid nails 14 further improve the friction of the abutting column 12.

[0027] The utility model provides a special screw for aluminium alloy sliding support, and the specific working principle is as follows: firstly, workers can pass through the cross groove 4 arranged on the top surface of the mounting seat 3, pass through external professional tools to threadedly connect the screw rod 1 in the opening of the sliding support, and fix the sliding support, then workers provide space for the screw rod 17 by pulling the limiting rod 20 outward, then workers insert the screw rod 17 into the slot 16, rotate the screw rod 17 to make the screw rod 17 threadedly connect with the screw head 2, then with the continuous rotation of the screw rod 17, the screw rod 17 can be inserted into the socket 15, and the moving seat 6 slides downward along with the movement of the screw rod 17, so as to press the first spring 8 and drive the assembly seat 7 to slide downward, at the same time, the assembly seat 7 drives the fixed rod 10 to slide downward, so as to drive the abutting column 12 to slide outward through the connecting rod 13, and the abutting column 12 passes through the screw rod 1 and abuts against the inner wall of the insertion hole, at the same time, the setting of the anti-skid nail 14 can increase the friction, so as to increase the friction between the device and the insertion hole, and reduce the possibility of loosening of the device due to vibration.

[0028] And if the device is installed in an environment with large temperature change, when the aluminium alloy has large thermal expansion and cold shrinkage, the elastic force of the first spring 8 can always drive the assembly seat 7 to slide downward along with the fixed rod 10, so as to always drive the abutting column 12 to abut against the inner wall of the insertion hole through the connecting rod 13, thereby reducing the possibility of loosening of the device;

[0029] Furthermore, once the screw 17 is fully submerged in the slot 16, the limiting rod 20 can be released, and under the action of the second spring 21, the limiting rod 20 will be locked in the annular groove 19, thereby preventing vibration from causing the screw 17 to loosen its threads and slide axially, thus ensuring the stable operation of the device.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A special screw for aluminum alloy sliding sash, comprising a screw rod (1), characterized in that, The top surface of the screw rod (1) is fixedly installed with a screw head (2), the top surface of the screw head (2) is fixedly installed with a mounting seat (3), the screw rod (1) is provided with a cavity (5), the cavity (5) is slidably connected with a moving seat (6) and an assembly seat (7) respectively, the first spring (8) is installed between the moving seat (6) and the assembly seat (7), the bottom surface of the assembly seat (7) is fixedly installed with a fixed rod (10), the side wall of the screw rod (1) is symmetrically slidably connected with a plurality of abutting columns (12), the outer side of each abutting column (12) is rotatably connected with a connecting rod (13), and the other end of each connecting rod (13) is rotatably connected to the outer side of the fixed rod (10), the top surface of the screw rod (1) is provided with a driving mechanism, and the driving mechanism drives the moving seat (6) to slide up and down.

2. The screw for aluminum alloy sliding sash according to claim 1, wherein The driving mechanism comprises a screw rod (17), and the screw rod (17) is threadedly connected to the top surface of the screw head (2), the top surface of the moving seat (6) is fixedly installed with a socket (15), one end of the screw rod (17) penetrates through the screw head (2) and is movably connected in the socket (15), the mounting seat (3) is provided with a slot (16), the other end of the screw rod (17) penetrates through the slot (16) and is installed with a mounting head (18), the outer side of the mounting seat (3) is installed with a limiting mechanism, and the limiting mechanism limits the axial sliding of the screw rod (17).

3. The screw for aluminum alloy sliding sash according to claim 2, wherein The limiting mechanism comprises a limiting rod (20), and the limiting rod (20) is slidably connected to the outer side of the mounting seat (3), the second spring (21) is installed between the limiting rod (20) and the outer side of the mounting seat (3), the outer side of the mounting head (18) is provided with a ring groove (19), and one end of the limiting rod (20) penetrates through the mounting seat (3) and is clamped in the ring groove (19).

4. The screw for aluminum alloy sliding sash according to claim 1, wherein The side wall of the screw rod (1) is symmetrically installed with a plurality of guide rails (11), and each abutting column (12) is slidably connected with the corresponding guide rail (11).

5. The screw for aluminum alloy sliding sash according to claim 1, wherein The top wall of the screw rod (1) is symmetrically installed with a plurality of guide blocks (9), and the moving seat (6) and the assembly seat (7) are slidably connected with the guide blocks (9).

6. The screw for aluminum alloy sliding sash according to claim 2, wherein The end of each abutting column (12) away from the fixed rod (10) is fixedly installed with a plurality of anti-skid nails (14), the top surface of the mounting seat (3) and the mounting head (18) is provided with a cross groove (4).

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