Anti-loose door and window hinge

Abstract

The utility model discloses an anti-loose door and window hinge in the technical field of door and window hinges, which comprises a hinge fixing shaft, a first hinge shaft sleeve is sleeved at the center of the outer part of the hinge fixing shaft, and second hinge shaft sleeves are sleeved at the upper end and the lower end of the outer part of the hinge fixing shaft; a first fixing piece is assembled on the outer wall of the first hinge shaft sleeve, a second fixing piece is assembled on the outer wall of the second hinge shaft sleeve at the upper end, and a third fixing piece is assembled on the outer wall of the second hinge shaft sleeve at the lower end; the upper end and the lower end of the hinge fixing shaft are sleeved with fixing cylinders. Threaded mounting holes are formed in the outer walls of the first fixing piece, the second fixing piece and the third fixing piece, and an anti-loosening fastener is assembled in each threaded mounting hole; according to the anti-loose door and window hinge, the situation that the bolt and the nut fall off due to external factors after installation can be avoided, the use strength is improved, the balls are arranged at the matching position of the hinge fixing shaft and the hinge shaft sleeve, abrasion between the hinge fixing shaft and the hinge shaft sleeve can be reduced, and then practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hinges, in particular to an anti-loosening door and window hinge. Background Art

[0002] Doors and windows in daily life are usually equipped with hinges. Through the hinge connection, doors and windows can be rotated and opened and closed, which is convenient for people to open and close doors and windows. Hinges are an indispensable and important component of doors and windows. Through hinges, doors and windows can be easily rotated to open and close. However, existing door and window hinges still have some shortcomings.

[0003] For example, the door and window fixing plates in the door and window hinges are fixed by bolts in the traditional way after the doors and windows are fixed. However, the nuts in the bolts are easily affected by the external installation environment and fall off, affecting the use of the hinges. Therefore, the existing technology needs to be improved. Utility Model Content

[0004] The purpose of the present utility model is to provide a loose-proof door and window hinge to solve the problem in the existing door and window hinges proposed in the above background technology that the door and window fixing plates are fixed by bolts in the traditional way after the doors and windows are fixed, and the nuts in the bolts are easily affected by the external installation environment and fall off, thereby affecting the use of the hinge.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an anti-loosening door and window hinge, comprising a hinge fixing shaft, a first hinge shaft sleeve being sleeved at the center of the outer portion of the hinge fixing shaft, and second hinge shaft sleeves being sleeved at both the upper and lower ends of the outer portion of the hinge fixing shaft;

[0006] The outer wall of the first hinge sleeve is equipped with a first fixing piece, the outer wall of the upper second hinge sleeve is equipped with a second fixing piece, and the outer wall of the lower second hinge sleeve is equipped with a third fixing piece;

[0007] The upper and lower ends of the hinge fixed shaft are sleeved with fixed cylinders;

[0008] The outer walls of the first fixing plate, the second fixing plate and the third fixing plate are all provided with threaded mounting holes, and the interior of each threaded mounting hole is equipped with an anti-loosening fastener, and the anti-loosening fastener includes a bolt rod and an anti-slip bolt threaded into the threaded mounting hole, and a nut is threaded onto the outside of the bolt rod.

[0009] As a preferred anti-loosening door and window hinge of the present invention, the bottom end of the bolt rod is provided with an anti-slip groove, the anti-slip screw is threaded into the anti-slip groove, the outside of the anti-slip screw is equipped with a fastening cylinder, and the fastening cylinder is sleeved on the outside of the bolt rod.

[0010] As a preferred anti-loosening door and window hinge of the present invention, the outer walls of both sides of the fastening cylinder are equipped with clamping rods, and the inner walls of the clamping rods are provided with spiral grooves that match the external threads of the bolt rods.

[0011] As a preferred anti-loosening door and window hinge of the present invention, an annular groove is provided at the bottom end of the nut, and the top end of the clamping rod is arranged in the annular groove.

[0012] As a preferred anti-loosening door and window hinge of the utility model, a fixing ring is fixedly installed on the outer upper end of the bolt rod, and the circumferential surface of the bolt rod is covered with an annular pressure plate, a spring and an annular rubber sheet, and an extrusion block is fixedly installed at the lower end edge of the annular pressure plate.

[0013] As a preferred anti-loosening door and window hinge of the present invention, the outer wall of the hinge fixed shaft is provided with a matching cavity at the first hinge sleeve and the second hinge sleeve, and the interior of the matching cavity is provided with a rotating cavity evenly and equidistantly along its axis, and a ball is installed inside the rotating cavity.

[0014] As a preferred anti-loosening door and window hinge of the present invention, the outer walls of the upper and lower ends of the hinge fixing shaft are both provided with external threads, and the inner wall of the fixing cylinder is provided with internal threads.

[0015] Compared with the prior art, the beneficial effects of the present invention are: the setting of the anti-loosening door and window hinge is reasonable in structure design;

[0016] By arranging three hinge sleeves on the outside of the hinge fixing shaft, a fixing plate for fixing doors and windows is arranged on the outer wall of each hinge sleeve, and an anti-loosening fastener is arranged on each fixing plate, so that the fixing plate can be installed. The setting of the anti-loosening fastener can prevent the bolts and nuts from falling off due to external factors after installation, thereby improving the strength of use, and arranging balls at the fitting point of the hinge fixing shaft and the hinge sleeve can reduce the wear between the two, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the hinge fixed axis of the utility model;

[0019] Figure 3 This is a schematic diagram of the anti-loosening fastener of the utility model;

[0020] Figure 4 This is a schematic diagram of the anti-drop tube of the utility model.

[0021] In the figure: 1. first fixing plate; 2. first hinge sleeve; 3. second hinge sleeve; 4. fixing cylinder; 5. second fixing plate; 6. threaded mounting hole; 7. third fixing plate; 8. hinge fixing shaft; 9. external thread; 10. matching cavity; 11. rotating cavity; 12. ball bearing; 13. anti-loosening fastener; 14. bolt rod; 15. nut; 16. anti-slip screw groove; 17. fastening cylinder; 18. anti-slip screw; 19. annular groove; 20. annular rubber sheet; 21. extrusion block; 22. annular pressure plate; 23. fixing ring; 24. spring; 25. clamping rod; 26. spiral groove. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] In the present technical solution, a anti-loosening door and window hinge includes a hinge fixing shaft 8, which is characterized in that: a first hinge sleeve 2 is sleeved at the outer center of the hinge fixing shaft 8, and second hinge sleeves 3 are sleeved on the upper and lower ends of the outer hinge fixing shaft 8; the outer wall of the first hinge sleeve 2 is equipped with a first fixing plate 1, the outer wall of the upper second hinge sleeve 3 is equipped with a second fixing plate 5, and the outer wall of the lower second hinge sleeve 3 is equipped with a third fixing plate 7; the upper and lower ends of the hinge fixing shaft 8 are sleeved with a fixing tube 4; the outer walls of the first fixing plate 1, the second fixing plate 5 and the third fixing plate 7 are all provided with threaded mounting holes 6, and the interior of each threaded mounting hole 6 is equipped with an anti-loosening fastener 13, and the anti-loosening fastener 13 includes a bolt rod 14 and an anti-slip screw 18 screwed in the threaded mounting hole 6, and the outer side of the bolt rod 14 is screwed with a nut 15.

[0025] In this technical solution, the first hinge sleeve 2 and the two second hinge sleeves 3 are rotatably assembled on the outside of the hinge fixing shaft 8, and a fixing plate for fixing doors and windows is provided on the outside of the hinge sleeve to form a door and window hinge in the prior art. By providing threaded mounting holes 6 on the first fixing plate 1, the second fixing plate 5 and the third fixing plate 7, the fixing plates are mounted to the doors and windows through anti-loosening fasteners 13.

[0026] In some technical solutions, the bottom end of the bolt rod 14 is provided with an anti-slip groove 16, and the anti-slip screw 18 is screwed into the anti-slip groove 16. The outside of the anti-slip screw 18 is equipped with a fastening cylinder 17, and the fastening cylinder 17 is sleeved on the outside of the bolt rod 14; the outer walls of both sides of the fastening cylinder 17 are installed with a clamping rod 25, and the inner wall of the clamping rod 25 is provided with a spiral groove 26 that matches the external thread of the bolt rod 14; the bottom end of the nut 15 is provided with an annular groove 19, and the top of the clamping rod 25 is arranged in the annular groove 19.

[0027] In this technical solution, after the bolt rod 14 is screwed into the threaded mounting hole 6, it is screwed into the mounting hole of the door and window, and finally the nut 15 is screwed into the bolt rod 14 to fix the two. The anti-loosening screw 18 is screwed into the anti-loosening screw groove 16, and the fastening tube 17 is sleeved on the outer wall of the bolt rod 14. At this time, the clamping rod 15 is in contact with the bolt rod 14, and the spiral groove 26 and the bolt rod 14 cooperate with each other, and the top end of the clamping rod 25 is placed in the annular groove 19 at the bottom end of the nut 15 to fix the nut 15 and prevent it from loosening.

[0028] In some technical solutions, a fixing ring 23 is fixedly installed on the outer upper end of the bolt rod 14, and the circumferential surface of the bolt rod 14 is covered with an annular pressure plate 22, a spring 24 and an annular rubber sheet 20, and an extrusion block 21 is fixedly installed at the lower end edge of the annular pressure plate 22.

[0029] In this technical solution, the annular pressing plate 14 is located on the upper side of the fixing ring 12 , the spring 16 is located on the upper side of the annular pressing plate 14 , and the annular rubber sheet 15 is located on the lower side of the fixing ring 12 .

[0030] In some technical solutions, the outer wall of the hinge fixed shaft 8 is provided with a matching cavity 10 at the first hinge sleeve 2 and the second hinge sleeve 3, and the interior of the matching cavity 10 is provided with a rotating cavity 11 evenly and equidistantly along its axis, and a ball 12 is installed inside the rotating cavity 11.

[0031] In this technical solution, the ball 12 can roll in the rotating cavity 11 and roll against the hinge sleeve, thereby reducing the hard friction between the hinge fixing shaft 8 and the hinge sleeve.

[0032] In some technical solutions, outer walls at both ends of the hinge fixing shaft 8 are provided with external threads 9 , and the inner wall of the fixing cylinder 4 is provided with internal threads.

[0033] In this technical solution, the fixing cylinder 4 is screwed onto the upper and lower ends of the hinge fixing shaft 8 , thereby limiting the hinge sleeve on the hinge fixing shaft 8 .

[0034] Working principle:

[0035] When in use, first, sleeve the second hinge sleeve 3 on the outer center of the hinge fixing shaft 8, then sleeve the two second hinge sleeves 3 on the upper and lower ends of the outer hinge fixing shaft 8, and then fix them by limiting them through the fixing tube 4, and then install the first fixing plate 1, the second fixing plate 5 and the second fixing plate 7 successively to the door and window installation position, and fix them with the anti-loosening fasteners 13.

[0036] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0037] While the present invention has been described above with reference to exemplary embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the disclosed embodiments may be combined with one another in any manner. The omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A hinge for preventing loosening of doors and windows, comprising a hinge fixing shaft (8), characterized in that: A first hinge sleeve (2) is sleeved on the center of the exterior of the hinge fixing shaft (8), and second hinge sleeves (3) are sleeved on both upper and lower ends of the exterior of the hinge fixing shaft (8); The outer wall of the first hinge sleeve (2) is equipped with a first fixing plate (1), the outer wall of the second hinge sleeve (3) at the upper end is equipped with a second fixing plate (5), and the outer wall of the second hinge sleeve (3) at the lower end is equipped with a third fixing plate (7); The upper and lower ends of the hinge fixed shaft (8) are sleeved with fixed cylinders (4); The outer walls of the first fixing plate (1), the second fixing plate (5) and the third fixing plate (7) are all provided with threaded mounting holes (6), and an anti-loosening fastener (13) is installed inside each of the threaded mounting holes (6). The anti-loosening fastener (13) includes a bolt rod (14) and an anti-stripping screw rod (18) screwed into the threaded mounting hole (6), and a nut (15) is screwed onto the outside of the bolt rod (14).

2. The anti-loosening door and window hinge according to claim 1, characterized in that: The bottom end of the bolt rod (14) is provided with an anti-slip groove (16), the anti-slip screw rod (18) is screwed into the anti-slip groove (16), the outside of the anti-slip screw rod (18) is equipped with a fastening cylinder (17), and the fastening cylinder (17) is sleeved on the outside of the bolt rod (14).

3. The anti-loosening door and window hinge according to claim 2, characterized in that: A clamping rod (25) is installed on both sides of the outer wall of the fastening cylinder (17), and a spiral groove (26) is formed on the inner wall of the clamping rod (25) to match the external thread of the bolt rod (14). An annular groove (19) is formed at the bottom end of the nut (15), and the top end of the clamping rod (25) is arranged in the annular groove (19).

4. The anti-loosening door and window hinge according to claim 1, characterized in that: A fixing ring (23) is fixedly mounted on the outer upper end of the bolt rod (14); an annular pressing plate (22), a spring (24) and an annular rubber sheet (20) are sleeved on the circumferential surface of the bolt rod (14); and an extrusion block (21) is fixedly mounted on the lower end edge of the annular pressing plate (22).

5. The anti-loosening door and window hinge according to claim 1, characterized in that: The outer wall of the hinge fixed shaft (8) is provided with a matching cavity (10) at the first hinge shaft sleeve (2) and the second hinge shaft sleeve (3), and the interior of the matching cavity (10) is provided with rotating cavities (11) evenly and equidistantly along the axis thereof, and a ball (12) is installed inside the rotating cavity (11).

6. The anti-loosening door and window hinge according to claim 1, characterized in that: External threads (9) are provided on the upper and lower outer walls of the hinge fixing shaft (8), and internal threads are provided on the inner wall of the fixing cylinder (4).

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