Hinge with adjustable limiting force

Abstract

The invention discloses an adjustable limiting force hinge, and belongs to the technical field of hinges. A second sleeve; the pin shaft is connected to the first sleeve and the second sleeve in a penetrating manner; the limiting force adjusting structure is connected to the pin shaft, the first sleeve is provided with a first position and a second position relative to the second sleeve, the first sleeve located at the first position is connected with the second sleeve, the limiting force adjusting structure is located at the connecting position of the first sleeve and the second sleeve, and a part of the limiting force adjusting structure abuts against the connecting position; the first sleeve at the second position is separated from the second sleeve to form a gap, and the limiting force adjusting structure is located in the gap. The first sleeve and the second sleeve are tightly connected through the connecting position, part of the limiting force adjusting structure can abut against the connecting position, relative rotation between the first sleeve and the second sleeve is prevented, and a user can fix a window sash provided with the limiting force adjustable hinge to an angle position suitable for the user.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hinges, in particular to a hinge with adjustable limiting force. BACKGROUND

[0002] A hinge, also known as a hinge, is a mechanical device used to connect two objects (such as a window sash and a window frame, a door leaf and a door frame) and allow them to rotate relative to a fixed shaft. It is widely used in furniture and building fields, especially in components such as casement windows and casement doors, as a core connecting component, bearing the functions of opening, closing and angle fixing of the window sash / door leaf.

[0003] In the prior art, the hinges on the market can basically ensure that the window sash can rotate flexibly when manually operated. However, in actual application, when encountering slight wind force (such as natural wind, indoor ventilation air flow), the window sash is easy to close or open automatically under the action of wind force: on the one hand, repeated collision between the window sash and the window frame will cause edge wear and hinge connection loosening, shortening the service life of the door and window and increasing the maintenance cost; on the other hand, accidental closing may injure the user, and accidental opening (especially for high-rise windows) may cause falling risk, which has significant safety hazards. SUMMARY

[0004] In order to overcome the technical problem that the hinge in the prior art cannot be fixed after being operated to a suitable position and is easily affected by wind force, the present application provides a hinge with adjustable limiting force, which comprises a first sleeve, a second sleeve, a pin shaft connected to the first sleeve and the second sleeve, and a limiting force adjusting structure connected to the pin shaft. The first sleeve has a first position and a second position relative to the second sleeve. The first sleeve in the first position is connected to the second sleeve, the limiting force adjusting structure is located at the connection position of the first sleeve and the second sleeve, and part of the structure of the limiting force adjusting structure is fixed at the connection position. The first sleeve in the second position is separated from the second sleeve to form a gap, and the limiting force adjusting structure is located in the gap.

[0005] Further, a clamping frame is embedded and installed at the top end of the shaft sleeve in the inner cavity of the second sleeve, forming the connection position of the first sleeve and the second sleeve. The inner wall surface of the clamping frame is provided with a plurality of internal teeth, and a groove is formed between adjacent two internal teeth. When the first sleeve is in the first position, at least part of the limiting force adjusting structure is clamped in the groove.

[0006] Further, the internal teeth are circularly arc transitionally arranged.

[0007] Further, the limiting force adjusting structure comprises an elastic member and an adjusting member, and the adjusting member is connected with the elastic member. The pin shaft has an elastic cavity, which is arranged between the first sleeve and the second sleeve and extends through the front and back of the elastic cavity. The elastic member and the adjusting member are adapted to be installed in the elastic cavity, and at least part of the elastic member extends from the elastic cavity, and the adjusting member is used for adjusting the length of the elastic member extending from the elastic cavity.

[0008] Further, the elastic member includes a spring, a spring seat and a ball, the ball is fixed at the top end of the spring, and the bottom end of the spring is sleeved in the spring seat.

[0009] Further, the second sleeve further includes an adjusting nut, and the inner cavity wall surface of the second sleeve is threadedly connected with the adjusting nut.

[0010] Further, the outer wall surface of the pin shaft has a ring groove, and the part of the pin shaft with the ring groove is adapted to be arranged in the inner cavity of the first sleeve.

[0011] Further, the first sleeve further includes a gasket, and the gasket is located at the bottom end of the first sleeve.

[0012] Further, the shaft sleeve is adapted to be installed in the inner cavity of the second sleeve, the top end of the shaft sleeve has a cornice, the wall surface of the second sleeve is clamped in the cornice, the cornice is provided with a plurality of clamping positions, the clamping frame has a clamping block, and the clamping block is clamped in the clamping position.

[0013] Further, two fan edges are further included, and the two fan edges are respectively integrally formed with the first sleeve and the second sleeve; the fan edge has a mounting section and an arc section, and an included angle is formed between the junction fixed position of the mounting section and the arc section. Advantages

[0014] The beneficial effects generated by the technical scheme of the present application are as follows: The limiting force adjusting structure is connected with the pin shaft, the upper end of the pin shaft is arranged in the inner cavity of the first sleeve, the lower end of the pin shaft is arranged in the inner cavity of the second sleeve, the first sleeve and the second sleeve can rotate relative to the pin shaft, and the limiting force adjusting structure is capable of adjusting the resistance of the first sleeve and the second sleeve relative to the pin shaft. The first sleeve has a first position and a second position relative to the second sleeve, when the first sleeve is in the first position, the bottom end of the first sleeve is connected with the top end of the second sleeve to form a connection position, and the connection position is tightly connected, part of the limiting force adjusting structure is fixed in the connection position, the external force (such as natural wind) is resisted, the relative rotation between the first sleeve and the second sleeve is prevented, the user can fix the sash provided with the adjustable limiting force hinge at a suitable angle position, and the technical defects that the hinge cannot be fixed at the suitable position and is easily affected by wind in the prior art are avoided; when the first sleeve is in the second position, the bottom end of the first sleeve is separated from the top end of the second sleeve to form a gap, the limiting force adjusting structure is separated from the connection position, the limiting force adjusting structure is located in the gap, and the first sleeve can rotate relative to the second sleeve, so that the user can adjust the sash provided with the adjustable limiting force hinge at will, and good product experience is provided for the user. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0016] Figure 1 is a structural schematic diagram of an adjustable limiting force hinge of the present application; Figure 2 is a sectional view of the present application in A-A direction; Figure 1 Figure 3 is a sectional view of the present application in B-B direction; Figure 1 Figure 4 is an exploded view of an adjustable limiting force hinge of the present application; Figure 5 is a structural schematic diagram of a clamping frame of an adjustable limiting force hinge of the present application; Figure 6 is an implementation schematic diagram of an adjustable limiting force hinge of the present application; Figure 1 Figure 7 is an implementation schematic diagram of an adjustable limiting force hinge of the present application. Figure 2

[0017] ​​​​Reference signs in the drawings: 1, first sleeve; 11, gasket; 2, second sleeve; 21, shaft sleeve; 211, clamping eaves; 212, clamping position; 22, adjusting nut; 3, pin shaft; 31, elastic cavity; 32, ring groove; 4, limiting force adjusting structure; 41, elastic member; 411, elastic ball; 412, spring; 413, spring seat; 42, adjusting member; 5, clamping frame; 51, inner tooth; 52, groove; 53, clamping block; 6, fan edge; 61, mounting section; 62, arc section; 63, included angle. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0019] Figure 6 An embodiment schematic diagram showing that the first sleeve 1 moves towards the second position; Figure 7 An embodiment schematic diagram showing that the limiting force adjusting structure 4 adjusts.

[0020] Please refer to Figures 1 to 7 An adjustable limiting force hinge, comprising a first sleeve 1; a second sleeve 2; a pin shaft 3, which is connected to the first sleeve 1 and the second sleeve 2; a limiting force adjusting structure 4, which is connected to the pin shaft 3, the first sleeve 1 has a first position and a second position relative to the second sleeve 2, the first sleeve 1 in the first position is connected to the second sleeve 2, the limiting force adjusting structure 4 is located at the connection position of the first sleeve 1 and the second sleeve 2, and a part of the structure of the limiting force adjusting structure 4 is fixed at the connection position; the first sleeve 1 in the second position is separated from the second sleeve 2 to form a gap, and the limiting force adjusting structure 4 is located in the gap.

[0021] In the technical solution, the limiting force adjusting structure 4 is connected with the pin shaft 3, the upper end of the pin shaft 3 is arranged in the inner cavity of the first sleeve 1, the lower end of the pin shaft 3 is arranged in the inner cavity of the second sleeve 2, the first sleeve 1 and the second sleeve 2 can relatively rotate around the pin shaft, and the limiting force adjusting structure 4 is the resistance that can adjust the relative rotation of the first sleeve 1 and the second sleeve 2 around the pin shaft. The first sleeve 1 has a first position and a second position relative to the second sleeve 2. When the first sleeve 1 is in the first position, the bottom end of the first sleeve 1 and the top end of the second sleeve 2 form a connection position and are tightly connected through the connection position, a part of the limiting force adjusting structure 4 is fixed in the connection position, an external force (such as natural wind) is resisted, the relative rotation between the first sleeve 1 and the second sleeve 2 is prevented, the user can fix the sash on which the adjustable limiting force hinge is installed at an angle position that the user feels appropriate, and the technical defect that the hinge cannot be fixed at the appropriate position after being operated to the appropriate position and is easily affected by wind in the prior art is avoided. When the first sleeve 1 is in the second position, the bottom end of the first sleeve 1 and the top end of the second sleeve 2 are separated to form a gap, the limiting force adjusting structure 4 is separated from the connection position, the limiting force adjusting structure 4 is located in the gap, the first sleeve 1 can relatively rotate with the second sleeve 2, the user can randomly adjust the sash on which the adjustable limiting force hinge is installed, and good product experience is given to the user.

[0022] It should be noted that the adjustable limiting force hinge can be installed not only on the sash but also on the door, which is not limited here.

[0023] Further, by Figure 2 , Figure 4 and Figure 5As shown, the second sleeve 2 is provided with a shaft sleeve 21, the shaft sleeve 21 is embeddedly installed in the inner cavity of the second sleeve 2, and the top end of the shaft sleeve 21 is embeddedly installed in the top end of the second sleeve 2, forming the connecting position of the first sleeve 1 and the second sleeve 2, the inner wall surface of the shaft sleeve 21 is provided with a plurality of inner teeth 211, and the wall surface of the second sleeve 2 is embeddedly connected in the eaves 211, and the eaves 211 is provided with a plurality of clamping positions 212, and the clamping block 53 of the clamping frame 5 is clamped in the clamping position 212, and the clamping frame 5 is rotatable with the second sleeve 2, and the inner teeth 51 are provided in a circular arc transition, and part of the limiting force adjusting structure 4 is elastic, when the second sleeve 2 rotates, the clamping frame 5 rotates synchronously, the inner teeth 51 press the elastic part of the limiting force adjusting structure 4, the force of the limiting force adjusting structure 4 on the pin shaft 3 is released, the bottom end of the first sleeve 1 is separated from the top end of the second sleeve 2, a gap is formed, the limiting force adjusting structure 4 is separated from the connecting position, the limiting force adjusting structure 4 is located in the gap, and the first sleeve 1 can rotate relative to the second sleeve 2, and the user can adjust the window sash installed with the adjustable limiting force hinge at will, giving the user a good product experience.

[0024] Specifically, the assembly relationship of the clamping frame 5 and the second sleeve 2 is shown in the figure Figure 4 As shown, the shaft sleeve 21 is fittedly installed in the inner cavity of the second sleeve 2, the top end of the shaft sleeve 21 has a cornice 211, the wall surface of the second sleeve 2 is clamped in the cornice 211, the cornice 211 is provided with a plurality of clamping positions 212, the clamping block 53 of the clamping frame 5 is clamped in the clamping position 212, the structure is stable, the clamping frame 5 can rotate with the second sleeve 2, and because the inner teeth 51 are provided in a circular arc transition, part of the limiting force adjusting structure 4 is elastic, when the second sleeve 2 rotates, the clamping frame 5 rotates synchronously, the inner teeth 51 press the elastic part of the limiting force adjusting structure 4, the force of the limiting force adjusting structure 4 on the pin shaft 3 is released, the bottom end of the first sleeve 1 is separated from the top end of the second sleeve 2, a gap is formed, the limiting force adjusting structure 4 is separated from the connecting position, the limiting force adjusting structure 4 is located in the gap, and the first sleeve 1 can rotate relative to the second sleeve 2, and the user can adjust the window sash installed with the adjustable limiting force hinge at will, giving the user a good product experience.

[0025] And the specific embodiment of the limiting force adjusting structure 4 and the pin shaft 3 is shown in the figure Figure 4As shown, the limiting force adjusting structure 4 comprises an elastic member 41 and an adjusting member 42, the adjusting member 42 is connected with the elastic member 41; the pin shaft 3 has an elastic cavity 31, the elastic cavity 31 is located between the first sleeve 11 and the second sleeve 2, the elastic cavity 31 is arranged through front and back; the elastic member 41 and the adjusting member 42 are adaptively installed in the elastic cavity 31, at least part of the elastic member 41 extends out of the elastic cavity 31, and the adjusting member 42 is used for adjusting the length of the elastic member 41 extending out of the elastic cavity 31. In the technical solution, the adjusting member 42 lifts the elastic member 41 without external force, so that part of the elastic member 41 is exposed in the elastic cavity 31 of the pin shaft 3 and clamped in the groove 52 of the clamping frame 5, and at this time, the first sleeve 1 is tightly connected with the second sleeve 2.

[0026] Specific embodiments of the elastic member 41 are shown in Figures 2 to 4 As shown, the elastic member 41 comprises a spring ball 411, a spring 412 and a spring seat 413, the spring ball 411 is fixed at the top end of the spring 412, the bottom end of the spring 412 is sleeved in the spring seat 413, and the adjusting member 42 is preferably an inner hexagonal flat end set screw, which is convenient for adjusting by means of a hexagonal spoon. Specific implementation is shown in Figure 7 As shown, the hexagonal spoon is rotated, the spring seat 413 drives the spring 412 to compress or elongate, and drives the spring ball 411 to extend into or pop out of the elastic cavity 31 of the pin shaft 3, so that the first sleeve 1 can be connected with the second sleeve 2.

[0027] As shown in Figure 3 , Figure 4 and Figure 6 As shown, the second sleeve 2 further comprises an adjusting nut 22, and the inner cavity wall surface of the second sleeve 2 is threadedly connected with the adjusting nut 22. In the technical solution, the adjusting nut 22 can be adjusted by using a hexagonal spoon, so that the adjusting nut 22 can move up and down in the inner cavity of the second sleeve 2, and as shown in Figure 6 When the adjusting nut 22 moves upward, it abuts against the pin shaft 3, the first sleeve 1 moves upward, the bottom end of the first sleeve 1 is separated from the top end of the second sleeve 2, and a gap is formed, at this time, the first sleeve 1 is in the second position, the limiting force adjusting structure 4 is popped out of the clamping frame 5, the limiting force adjusting structure 4 is located in the gap, and the first sleeve 1 can rotate relatively with the second sleeve 2, so that the user can adjust the window sash with the adjustable limiting force hinge at will, and good product experience is given to the user.

[0028] Further, as shown in Figure 4As shown, the outer wall surface of the pin shaft 3 has a ring groove 32, and the part of the pin shaft 3 with the ring groove 32 is adapted to be arranged in the inner cavity of the first sleeve 1. The ring groove 32 is a groove structure on the surface of the pin shaft 3, and when the first sleeve 1 is sleeved on the pin shaft 3, the protruding parts on both sides of the ring groove 32 will axially constrain the first sleeve 1, and if the first sleeve 1 moves axially, it will be blocked by the edge of the ring groove 32, thereby avoiding the accidental falling of the first sleeve 1 from the pin shaft 3 in the second position.

[0029] Further, as shown in the drawings, Figure 4 As shown, the first sleeve 1 further comprises a gasket 11 located at the bottom end of the first sleeve 1, which serves as an adjusting member to supplement the gap between the first sleeve 1 and the clamping frame 5, and to make the connection between the first sleeve 1 and the second sleeve 2 tight.

[0030] It should be noted that, as shown in the drawings, Figure 2 As shown, the hinge further comprises two fan edges 6, which are integrally formed with the first sleeve 1 and the second sleeve 2, respectively; the fan edge 6 has a mounting section 61 and an arc section 62, and the arc section 62 and the mounting section 61 form an included angle 63. In this technical solution, the fan edge 6 is integrally formed by the mounting section 61 and the arc section 62, and the arc section 62 is integrally formed with the first sleeve 1 and the second sleeve 2, and the mounting section 61 is located on the side of the arc section 62 away from the first sleeve 1 and the second sleeve 2, and is used for fixedly connecting with the window sash. When the two components connected by the hinge (such as the door and the door frame) are rotated, if the fan edge 6 is a right angle, the edge is easy to produce hard friction with the corresponding contact surface (such as the hinge groove of the door frame), which will cause edge wear, paint peeling or deformation after long-term use. The included angle 63 formed by the mounting section 61 and the arc section 62 can convert "point contact" or "line contact" into more smooth "surface contact", disperse the friction force, and reduce the probability of mutual scratching of the components, especially in the scene of frequent opening and closing (such as indoor doors and cabinet doors), which can significantly prolong the service life of the hinge and the connected components.

[0031] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An adjustable limiting force hinge, characterized in that, include: First sleeve (1); Second sleeve (2); A pin (3) is connected through the first sleeve (1) and the second sleeve (2); A limiting force adjustment structure (4) is connected to the pin (3). The first sleeve (1) has a first position and a second position relative to the second sleeve (2). The first sleeve (1) located at the first position is connected to the second sleeve (2). The limiting force adjustment structure (4) is located at the connection position of the first sleeve (1) and the second sleeve (2), and a part of the limiting force adjustment structure (4) is fixed at the connection position. The first sleeve (1) located at the second position is separated from the second sleeve (2) to form a gap, and the limiting force adjustment structure (4) is located in the gap.

2. The adjustable limiting force hinge according to claim 1, characterized in that, It also includes a snap-fit ​​bracket (5), which is fitted into the top of the bushing (21) in the inner cavity of the second sleeve (2) to form a connection position between the first sleeve (1) and the second sleeve (2). The inner wall surface of the snap-fit ​​bracket (5) is provided with a plurality of internal teeth (51), and a groove (52) is formed between two adjacent internal teeth (51). When the first sleeve (1) is in the first position, at least part of the limiting force adjustment structure (4) is snapped into the groove (52).

3. The adjustable limiting force hinge according to claim 2, characterized in that, The internal teeth (51) are provided with a circular arc transition.

4. The adjustable limiting force hinge according to claim 1, characterized in that, The limiting force adjustment structure (4) includes an elastic element (41) and an adjusting element (42), wherein the adjusting element (42) is connected to the elastic element (41); The pin (3) has an elastic cavity (31), which is located between the first sleeve (11) and the second sleeve (2), and the elastic cavity (31) is arranged through the front and rear. The elastic element (41) and the adjusting element (42) are adapted to be installed in the elastic cavity (31), at least part of the elastic element (41) extends out of the elastic cavity (31), and the adjusting element (42) is used to adjust the length of the elastic element (41) extending out of the elastic cavity (31).

5. An adjustable limiting force hinge according to claim 4, characterized in that, The elastic element (41) includes a ball (411), a spring (412) and a spring seat (413). The ball (411) is fixed to the top of the spring (412), and the bottom of the spring (412) is sleeved in the spring seat (413).

6. An adjustable limiting force hinge according to claim 1, characterized in that, The second sleeve (2) also includes an adjusting nut (22), and the inner wall of the second sleeve (2) is threadedly connected to the adjusting nut (22).

7. An adjustable limiting force hinge according to claim 1, characterized in that, The outer wall of the pin (3) has an annular groove (32), and the portion of the pin (3) with the annular groove (32) is adapted to pass through the inner cavity of the first sleeve (1).

8. An adjustable limiting force hinge according to claim 1, characterized in that, The first sleeve (1) further includes a gasket (11) located at the bottom end of the first sleeve (1).

9. An adjustable limiting force hinge according to claim 2, characterized in that, The bushing (21) is adapted to be installed in the inner cavity of the second sleeve (2). The top of the bushing (21) has a flap (211). The wall of the second sleeve 2 is engaged in the flap (211). The flap (211) has multiple engagement positions (212). The engagement frame (5) has an engagement block (53). The engagement block (53) is engaged in the engagement position (212).

10. An adjustable limiting force hinge according to claim 1, characterized in that, It also includes two fan edges (6), which are integrally formed with the first sleeve (1) and the second sleeve (2), respectively; the fan edge (6) has an installation section (61) and an arc section (62), and the arc section (62) and the installation section (61) form an angle (63) at the connection and fixing position.

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