Screw-free quick-assembly and quick-disassembly hinge connecting structure for door and window sash

Abstract

The invention discloses a door and window sash screw-free fast-assembly fast-disassembly hinge connecting structure which comprises a first connecting base connected with a door and window sash and a second connecting base connected with a hinge, a containing cavity is formed in the first connecting base, and a limiting part capable of extending into the containing cavity is arranged on the second connecting base. A lock catch piece capable of being locked with the limiting part so as to enable the second connecting base to be connected with the first connecting base is movably connected into the containing cavity, a pressing piece capable of driving the lock catch piece to be separated from the limiting part is further movably connected to the first connecting base, and an avoiding hole or an avoiding groove for containing the pressing piece is further formed in the first connecting base. The lock catch piece is elastically connected with the first connecting base so that the pressing piece can be reset, then the lock catch piece and the limiting part can be locked, direct fixing of the second connecting base and the first connecting base is achieved through an elastic locking mechanism of the lock catch piece and the limiting part, no screw or screw is needed for auxiliary installation, dependence of a traditional structure on tools is thoroughly eliminated, and the installation efficiency is improved. The installation process is simplified, and the operation complexity is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window fittings, and particularly to a hinge connection structure for quick installation and disassembly of door and window sashes without screws. Background Art

[0002] In recent years, with the rapid development of the building door and window industry, users' demand for convenient disassembly and assembly of door and window sashes has been increasing. Traditional connection structures mostly adopt screw fixing methods. For example, hinges are fastened to the door and window sash frames through multiple screws. However, such structures have significant defects in practical applications: when users need to disassemble the window screen for cleaning or replacement, they must remove the screws, and the operation process is cumbersome and time-consuming. Moreover, repeated disassembly and assembly easily lead to screw thread slipping or frame damage, affecting the structural stability and service life.

[0003] To improve the above problems, some quick installation and disassembly connection structures have emerged on the market. One solution adopts a method of fixing with a bushing and unlocking parts, and realizes quick disassembly by pulling the unlocking parts. However, the fixing parts of such structures still rely on screws or tightening screws for initial installation, and do not truly achieve screw-free throughout the process, resulting in a still complex installation process. Another solution adopts a screw unlocking mechanism, that is, the locking state is released by loosening the screws, but this operation still essentially requires tool assistance, and repeated rotation of the screws easily causes component wear, instead increasing the operation complexity. In addition, existing quick installation structures generally have the following common defects: 1. The unlocking mechanism is complex in design, and auxiliary parts such as exposed screws and pins are required, damaging the overall appearance integrity of the product; 2. The locking stability is insufficient, and accidental unlocking is likely to occur in the case of frequent disassembly and assembly or a vibrating environment.

[0004] The present invention is made based on the above situation. Summary of the Invention

[0005] The present invention overcomes the deficiencies of the prior art and provides a hinge connection structure for quick installation and disassembly of door and window sashes without screws, which has the characteristics of screw-free installation, quick installation and disassembly, simple structure, and beautiful and reliable.

[0006] The present invention is realized through the following technical solutions:

[0007] A hinge connection structure for quick installation and disassembly of door and window sashes without screws includes a first connection seat connecting the door and window sash and a second connection seat connecting the hinge. An accommodation cavity is provided in the first connection seat, a limiting part capable of extending into the accommodation cavity is provided on the second connection seat, a locking part is movably connected in the accommodation cavity and can be locked with the limiting part to connect the second connection seat with the first connection seat. A pressing part capable of driving the locking part to disengage from the limiting part is also movably connected on the first connection seat. An avoidance hole or avoidance groove for accommodating the pressing part is further provided on the first connection seat. The locking part is elastically connected with the first connection seat so as to enable the pressing part to reset and further enable the locking part to be locked with the limiting part.

[0008] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the locking member is slidably connected to the first connecting seat.

[0009] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein a guiding structure for guiding the sliding of the locking member is provided on the side wall of the accommodating cavity. The guiding structure includes a guiding groove or a guiding block provided on the side wall of the accommodating cavity, and a sliding block cooperating with the guiding groove or a sliding groove cooperating with the guiding block is provided on the locking member.

[0010] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the middle part of the locking member is rotatably connected to the first connecting seat, the pressing member is provided at the tail of the locking member, and a clamping block capable of being clamped with the limiting portion is provided at the head of the locking member.

[0011] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the pressing member and the locking member are of an integral structure, and the locking member is made of an elastic material or an elastic reset member is provided between the tail of the locking member and the side wall of the accommodating cavity.

[0012] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the pressing member and the locking member are of a split structure, and a pushing structure capable of pushing the locking member away from the limiting portion when the pressing member moves towards the locking member is provided between the pressing member and the locking member. The pushing structure includes an inclined surface structure or an arc surface structure.

[0013] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the first connecting seat includes an outer shell and a baffle connected to the outer shell. The accommodating cavity is formed by the cooperation of the outer shell and the baffle, and an insertion opening for the limiting portion to extend into the accommodating cavity is provided on the outer shell.

[0014] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein a first limiting block extending into the insertion opening is provided on the first connecting seat, and the first limiting block circumferentially positions the limiting portion in the insertion opening.

[0015] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein a second limiting block capable of guiding and limiting the insertion of the limiting portion is further provided in the accommodating cavity.

[0016] A hinge connection structure for quick installation and disassembly of door and window sashes without screws as described above, wherein the second connecting seat includes a connecting plate connecting the limiting plate. A limiting support plate for restricting the swinging of the second connecting seat is clamped between the connecting plate and the hinge. A clamping groove for clamping with the movable sash is provided between the connecting plate and the hinge. The limiting support plate is provided with a clamping section that is narrow at the front and wide at the back, and the two side walls of the clamping section are the bottom of the clamping groove. A protrusion extending into the clamping groove to further clamp the movable sash is provided at the lower part of the connecting plate.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] The present invention realizes direct fixation of the second connection seat and the first connection seat through the elastic locking mechanism of the lock catch and the limit part, without any screws or screw-assisted installation, completely eliminating the dependence of the traditional structure on tools, simplifying the installation process and reducing the complexity of operation. The user only needs to press the trigger pressing piece to instantly release the locking state of the lock catch and the limit part, and realize the rapid disassembly of the door and window leaf. The operation steps are simplified to a single action, which is time-saving and does not require technical training.

[0019] The core functional components such as the locking parts and the pressing parts are all built into the accommodating cavity of the first connecting seat. The avoidance hole only provides a pressing channel. The overall structure has no exposed screws, pins or protruding parts. The appearance is simple and flat, which meets the high requirements of modern door and window products for aesthetics.

[0020] The locking piece is elastically connected to the first connecting seat. Under normal circumstances, the elastic force drives the locking piece to automatically reset and tightly lock with the limit part to ensure the connection strength. When pressing to unlock, the elastic force needs to be overcome, which can avoid accidental separation due to accidental touch or vibration, and significantly improve safety.

[0021] Abandon the traditional threaded connection structure to avoid problems such as screw stripping and frame wear caused by repeated disassembly and assembly. At the same time, reduce the number of parts, reduce processing and maintenance costs, and extend the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 is a cross-sectional schematic diagram of embodiment 1 of the present invention;

[0025] Figure 3 This is a schematic diagram of the decomposition of Example 1 of the present invention. Figure 1 ;

[0026] Figure 4 This is a schematic diagram of the decomposition of Example 1 of the present invention. Figure 2 ;

[0027] Figure 5 is a cross-sectional schematic diagram of embodiment 2 of the present invention;

[0028] Figure 6 is an exploded schematic diagram of embodiment 2 of the present invention;

[0029] Figure 7 is a cross-sectional schematic diagram of embodiment 3 of the present invention;

[0030] Figure 8 is the exploded schematic diagram of Embodiment 3 of the present invention Figure 1 ;

[0031] Figure 9 is the exploded schematic diagram of Embodiment 3 of the present invention Figure 2 ;

[0032] Figure 10 is the structural schematic diagram of the lock fastener of the present invention in the locked state;

[0033] Figure 11 is the schematic diagram of the use state of the present invention;

[0034] Figure 12 is the structural schematic diagram of the second connection seat in the present invention;

[0035] Figure 13 is the structural schematic diagram of the limit support plate in the present invention. Detailed Embodiment

[0036] The present invention will be further described below with reference to the accompanying drawings:

[0037] As Figures 1 to 13 shown, a hinge connection structure for quick installation and disassembly of door and window sashes without screws includes a first connection seat 1 connecting the door and window sashes and a second connection seat 2 connecting the hinge. An accommodation cavity 10 is provided in the first connection seat 1. A limiting portion 3 that can extend into the accommodation cavity 10 is provided on the second connection seat 2. A lock fastener 4 that can be movably connected in the accommodation cavity 10 and can be locked with the limiting portion 3 to connect the second connection seat 2 and the first connection seat 1 is provided. A pressing member 5 that can drive the lock fastener 4 to disengage from the limiting portion 3 is also movably connected to the first connection seat 1. An avoidance hole 100 or an avoidance groove for accommodating the pressing member 5 is further provided on the first connection seat 1. The lock fastener 4 is elastically connected to the first connection seat 1 so that the pressing member 5 can be reset and the lock fastener 4 can be locked with the limiting portion 3.

[0038] The present invention adopts an internal elastic locking structure, realizes the screwless quick installation of the door and window connection seat through the elastic cooperation between the lock fastener 4 and the limiting portion 3. The user only needs to press the trigger button to instantaneously unlock and complete the disassembly. The overall structure adopts a hidden design to eliminate exposed parts, not only keeping the appearance flat and beautiful, but also ensuring the connection stability through the elastic self-locking mechanism, effectively avoiding accidental touch and loosening. At the same time, the traditional threaded structure is abandoned to reduce the risk of part wear and thread slipping, significantly improving the installation efficiency, product life and safety performance.

[0039] The door and window sash includes an outer frame 81 and a movable sash 83 connected to the outer frame 81 by a hinge 82. On both sides of the first connecting seat 1, there are engaging structures 15 for engaging with the movable sash 83. On the second connecting seat 2, there is a connecting mechanism 20 that can fixedly connect it to the hinge 82. Among them, the engaging structure 15 can be a card slot or a clamping block, etc., which are structures that are easy to install and disassemble. The connecting mechanism 20 can be a mounting hole, and it is connected by a hinge pin or other connecting structures.

[0040] In some embodiments, the locking member 4 is made of an elastic material and can be reset by its own elastic force.

[0041] In some embodiments, between the locking member 4 and the first connecting seat 1, there is also an elastic reset member 6 that can reset the locking member 4 so as to lock with the limiting portion 3. Among them, the elastic reset member 6 can be a reset spring or other elastic elements.

[0042] In some embodiments, the limiting portion 3 can be a connecting ear, a hook, a card slot or a pin, etc., which are structures that can be engaged with the locking member 4. The locking member 4 can also be a connecting ear, a hook, a card slot or a pin, etc.

[0043] In some embodiments, the first connecting seat 1 includes an outer shell 13 and a baffle 14 connected to the outer shell 13. The accommodating cavity 10 is surrounded by the cooperation of the outer shell 13 and the baffle 14. On the outer shell 13, there is an insertion opening 131 for the limiting portion 3 to extend into the accommodating cavity 10.

[0044] Furthermore, on the outer shell 13, there are at least two positioning studs 132. At the positions corresponding to the positioning studs 132 on the baffle 14, there are insertion holes 141. Of course, the baffle 14 can be connected to the outer shell 13 by the interference fit of the positioning studs 132 and the insertion holes 141. The baffle 14 can also be connected to the outer shell 13 by connecting structures such as buckles, welding, hot melting or glue.

[0045] As Figures 2 - 4 shown, in some embodiments, the locking member 4 is slidably connected to the first connecting seat 1. On the side wall of the accommodating cavity 10, there is a guiding structure 11 for guiding the sliding of the locking member 4. The guiding structure 11 ensures the locking accuracy of the locking member 4 by restricting the sliding trajectory of the locking member 4. Specifically, the guiding structure 11 includes a guiding groove or a guiding block provided on the side wall of the accommodating cavity 10. On the locking member 4, there is a sliding block 41 that cooperates with the guiding groove, or on the locking member 4, there is a sliding groove 42 that cooperates with the guiding block.

[0046] As Figures 5 - 6As shown, in some embodiments, the middle part of the locking member 4 is rotatably connected to the first connecting seat 1, thus forming a seesaw structure. The pressing member 5 is arranged at the tail of the locking member 4, and a clamping block 43 capable of being buckled with the limiting portion 3 is arranged at the head of the locking member 4. Pressing the pressing member 5 can lift the locking member 4 to unlock. When the pressing member 5 is released, the locking member 4 is reset by its own elastic force or through an elastic reset member 6, thereby driving the locking member 4 to be locked with the limiting portion 5.

[0047] The above-mentioned pressing member 5 and the locking member 4 can be of an integral structure, eliminating the welding points or weak areas of screw connections in the traditional split structure. Reducing the risk of fracture and improving the anti-fatigue ability. At the same time, it can also improve the accuracy of transmission and movement. Of course, it can also be a split structure. The locking member 4 is made of an elastic material or an elastic reset member 6 is arranged between the tail of the locking member 4 and the side wall of the accommodating cavity 10.

[0048] In some embodiments, a first connecting column 40 or a first installation groove 400 is arranged on the locking member 4, and a second connecting column 101 or a second installation groove opposite to the first connecting column 40 or the first installation groove 400 is arranged on the side wall of the accommodating cavity 10. One end of the elastic reset member 6 is sleeved on the first connecting column 40, and the other end is sleeved on the second connecting column 101; or one end of the elastic reset member 6 is inserted into the first installation groove 400, and the other end is inserted into the second installation groove.

[0049] As Figures 7 - 9 As shown, in some embodiments, the pressing member 5 and the locking member 4 are of a split structure, and a pushing structure 7 capable of pushing the locking member 4 away from the limiting portion 3 when the pressing member 5 moves towards the locking member 4 is arranged between the pressing member 5 and the locking member 4. The pushing structure 7 includes an inclined surface structure or an arc surface structure. In one embodiment, the pushing structure 7 is only arranged at the end where the pressing member 5 abuts against the locking member 4; in one embodiment, the pushing structure 7 is only arranged at the end where the locking member 4 abuts against the pressing member 5; in one embodiment, the pushing structures 7 capable of cooperating with each other are arranged at both the end where the pressing member 5 abuts against the locking member 4 and the end where the locking member 4 abuts against the pressing member 5.

[0050] Furthermore, the pressing member 5 is provided with a limiting structure 51 capable of restricting the pressing member 5 from disengaging from the avoidance hole 100. The avoidance hole 100 can play a guiding role in the movement of the pressing member 5, so as to ensure that the pushing member 5 accurately pushes the locking member 4. The above-mentioned limiting structure 51 can be a limiting structure such as a clamping block or a clamping ring.

[0051] In some embodiments, a first limiting block 12 extending into the socket 131 is provided on the first connection base 1, and the first limiting block 12 circumferentially positions the limiting portion 3 in the socket 131. A second limiting block 121 capable of guiding and limiting the insertion of the limiting portion 3 is further provided in the accommodation cavity 10. Through the cooperation of the first limiting block 12 and the second limiting block 121, the left - right and front - rear swaying of the limiting portion 3 is restricted, thereby reducing the swaying and abnormal noise of the movable fan 83 during opening and closing.

[0052] As Figures 12 - 13 shown, in some embodiments, the second connection base 2 includes a connecting plate 22 connecting the limiting plate 3. A limiting support plate 21 for restricting the swinging of the second connection base 2 is clamped between the connecting plate 22 and the hinge. A clamping groove 24 for clamping with the movable fan 83 is provided between the connecting plate 22 and the hinge. The limiting support plate 21 is provided with a clamping section 211 that is narrow in the front and wide in the rear, and the two side walls of the clamping section 211 are the bottom of the clamping groove 24, so as to gradually lock the movable fan 83 when inserted into the movable fan 83. A protrusion 221 extending into the clamping groove 24 is provided at the lower part of the connecting plate 22 to further clamp the movable fan 83. Among them, the limiting support plate 21 can be connected to the hinge 82 through other connection structures such as a hinge seat or an elastic buckle. The connecting plate 22 can be connected to the limiting support plate 21 through other connection structures such as a hinge seat or an elastic buckle. Positioning holes 200 are provided on the connecting plate 22 or the limiting support plate 21. When the positioning holes 200 are provided on the connecting plate 22, the limiting support plate 21 is provided with positioning inserts 23 that can be inserted into the positioning holes 200; when the positioning holes 200 are provided on the limiting support plate 21, the connecting plate 22 is provided with positioning inserts 23 that can be inserted into the positioning holes 200, thereby restricting the left - right or up - down swaying of the hinge 82.

[0053] Furthermore, the connecting plate 22 is a metal part, and the limiting support plate 21 is a plastic part. Compared with the abnormal noise of hard friction between metals, the cooperation between the metal part and the plastic part can further reduce the abnormal noise of friction between the limiting support plate 21 and the hinge 82.

Claims

1. A screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes, characterized in that: The invention comprises a first connection seat (1) connected to a door or window sash and a second connection seat (2) connected to a hinge, wherein a receiving cavity (10) is provided in the first connection seat (1), a limiting portion (3) capable of extending into the receiving cavity (10) is provided on the second connection seat (2), a locking member (4) capable of being locked with the limiting portion (3) so as to connect the second connection seat (2) with the first connection seat (1) is movably connected in the receiving cavity (10), and the locking member (4) is capable of being locked with the limiting portion (3) so as to connect the second connection seat (2) with the first connection seat (1), and a pressing member (5) capable of driving the locking member (4) to be separated from the limiting portion (3) is also movably connected to the first connection seat (1), and an avoidance hole (100) or avoidance groove for accommodating the pressing member (5) is also provided on the first connection seat (1), and the locking member (4) is elastically connected to the first connection seat (1) so as to reset the pressing member (5) and thereby lock the locking member (4) with the limiting portion (3).

2. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 1, characterized in that: The locking member (4) is slidably connected to the first connecting seat (1).

3. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 2, characterized in that: A guide structure (11) is provided on the side wall of the accommodating cavity (10) for guiding the sliding of the locking member (4), and the guide structure (11) includes a guide groove or a guide block provided on the side wall of the accommodating cavity (10), and the locking member (4) is provided with a sliding block (41) cooperating with the guide groove or the locking member (4) is provided with a sliding groove (42) cooperating with the guide block.

4. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 1, characterized in that: The middle portion of the locking member (4) is rotatably connected to the first connecting seat (1), the pressing member (5) is arranged at the rear portion of the locking member (4), and the front portion of the locking member (4) is provided with a clamping block (43) that can be buckled with the limiting portion (3).

5. A screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 3 or 4, characterized in that: The pressing member (5) and the locking member (4) are of an integrated structure; the locking member (4) is made of an elastic material or an elastic reset member (6) is provided between the tail of the locking member (4) and the side wall of the accommodating cavity (10).

6. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 3, characterized in that: The pressing member (5) and the locking member (4) are of a split structure, and a pushing structure (7) is provided between the pressing member (5) and the locking member (4) for pushing the locking member (4) to disengage from the limiting portion (3) when the pressing member (5) moves toward the locking member (4), wherein the pushing structure (7) comprises an inclined surface structure or an arc surface structure.

7. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 1, characterized in that: The first connecting seat (1) comprises an outer shell (13) and a baffle (14) connected to the outer shell (13); the accommodating cavity (10) is formed by the outer shell (13) and the baffle (14); and the outer shell (13) is provided with a socket (131) for the limiting portion (3) to extend into the accommodating cavity (10).

8. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 7, characterized in that: The first connection seat (1) is provided with a first limiting block (12) extending into the socket (131), and the first limiting block (12) circumferentially positions the limiting portion (3) within the socket (131).

9. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 8, characterized in that: A second limiting block (121) capable of guiding and limiting the insertion of the limiting portion (3) is also provided in the accommodating cavity (10).

10. The screw-free quick-install and quick-disassemble hinge connection structure for door and window sashes according to claim 1, characterized in that: The second connecting seat (2) includes a connecting plate (22) connected to a limiting plate (3); a limiting support plate (21) for limiting the swing of the second connecting seat (2) is clamped between the connecting plate (22) and the hinge; a clamping groove (24) for clamping with the movable fan is provided between the connecting plate (22) and the hinge; a clamping section (211) which is narrow in front and wide in the back is provided on the limiting support plate (21); the two side walls of the clamping section (211) are the bottom of the clamping groove (24); the lower part of the connecting plate (22) is provided with a protrusion (221) which extends into the clamping groove (24) to further clamp the movable fan.

Images