A concealed hinge capable of realizing rotation angle positioning

Abstract

The application provides a hidden hinge capable of realizing rotation angle positioning, comprising a rotating arm main body, door frame side fixing seat assemblies and door leaf side fixing seat assemblies are arranged at two ends of the rotating arm main body respectively, the hidden hinge provided by the application has the advantages of high stability, convenient adjustment and realization of 90-degree opening positioning, etc., in the design process, the unique structure design makes the application have high stability, and the adjustment of the door frame side fixing seat assemblies and the door leaf side fixing seat assemblies is further matched, so that the use process is very convenient, and more importantly, the application can realize angle positioning, which is an effect that cannot be realized in the prior art, therefore, the application has great economic value and practical value.

Description

Technical Field

[0001] This invention relates to the field of hinge design technology, and in particular to a concealed hinge that can achieve rotation angle positioning. Background Technology

[0002] Hinges are rotating mechanical devices used to connect door frames and door panels. They are ubiquitous in our daily lives and are essential hardware components. Hinges can be composed of movable components or made of foldable materials. Hinges are often installed on cabinets and are mainly classified by material into stainless steel hinges and iron hinges. Hinges generally consist of an adjusting base and a rocker arm assembly, rotating as the door opens and closes. With technological advancements, the function of hinges is constantly improving, and societal demands are also increasing. Most existing hinges cannot achieve precise positioning, therefore, further improvements are needed. Summary of the Invention

[0003] In view of the shortcomings of the prior art, the present invention provides a concealed hinge that is highly stable, easy to adjust, and can be opened to 90° and positioned by rotation angle.

[0004] The technical solution adopted by the present invention to solve the above problems is as follows: The present invention provides a concealed hinge that can achieve rotation angle positioning, including a rotating arm body, wherein the two ends of the rotating arm body are respectively provided with a door frame side fixing seat assembly and a door leaf side fixing seat assembly.

[0005] Furthermore, one end of the main body of the rotating arm is provided with a first rotating shaft hole and a fixing limiting groove. The other end is provided with an opening / closing sequence plate mounting hole, a clearance groove, and a second rotating shaft hole. A connecting rod A and a sliding column assembly are respectively installed in the first rotating shaft hole and the fixed limiting groove. The connecting rod A and the sliding column assembly are connected to the door frame side fixing seat assembly. A first connecting shaft is installed in the opening and closing sequence plate mounting hole, and a second connecting shaft is installed in the second rotating shaft hole. The second connecting shaft is connected to the door leaf side fixing seat assembly.

[0006] Furthermore, the main body of the rotating arm is provided with opening and closing sequence plates on both sides. The opening and closing sequence plates are provided with positioning grooves, limiting groove structure A, mounting holes, rivet mounting positions, and limiting groove structure B. The positioning groove cooperates with the sliding column assembly. The mounting hole mates with the first connecting shaft.

[0007] A rivet is installed at the rivet mounting position, and a wear-resistant part is installed on the rivet.

[0008] Furthermore, the door leaf side fixing seat assembly includes a door leaf fixing seat connected to the second connecting shaft. The door leaf fixing base is equipped with a sliding guide plate and a door leaf adjustment structure. The door leaf fixing base and the sliding guide plate are connected to the door leaf adjustment structure through the alignment plate limiting connector A and the alignment plate limiting connector B. The door leaf adjustment structure includes a connecting guide rod disposed between the door leaf fixing seats and upper and lower adjusting sleeves connected to the connecting guide rod by adjusting screws. The upper and lower adjusting sleeve is also provided with a grommet screw mounting position for installing a grommet screw. The upper and lower adjusting sleeve is also equipped with a left and right adjusting bolt, which abuts against the machine screw to adjust in the left and right direction.

[0009] Furthermore, the left and right adjusting bolts are provided with sealing grooves, and sealing rings are fitted onto the sealing grooves. The end of the left and right adjusting bolts is a beveled structure, and the beveled surface of the beveled structure abuts against the nut screw.

[0010] Furthermore, the upper and lower adjusting sleeves and the connecting guide rod are respectively provided with a first adjusting screw mounting position and a second adjusting screw mounting position. The adjusting screw passes through the first adjusting screw mounting position and the second adjusting screw mounting position in sequence and is fixed by a nut.

[0011] Furthermore, a bearing is provided between the door leaf fixing seat and the second connecting shaft.

[0012] Furthermore, the door frame side fixing bracket assembly includes door frame side fixing brackets, and the door frame side fixing brackets are connected to each other via connecting rods. The door frame side fixing seat is also equipped with a limit block. The limiting block is provided with a spring mounting position and a limiting contact arc surface, and a spring is installed in the spring mounting position. A limit force adjustment block is installed at the other end of the spring. The door frame side fixing seat is also provided with a limit block adjustment hole, in which the limit force adjustment block is installed. A force adjustment hole is also provided communicating with the limit block adjustment hole, in which a force adjustment screw is installed. The limit force adjustment block is provided with a force adjustment screw hole for installing the force adjustment screw. The limiting force adjustment block is also equipped with a spring fixing post for inserting into the other end of the spring. Furthermore, the connecting rod includes a first connecting rod and a second connecting rod. The door frame side mounting base is provided with a limit block mounting position, and a locking screw is installed in the limit block mounting position. The locking screw passes through the limit block and is fixed by a nut. The door frame side fixing seat is also provided with a sliding guide groove and a limiting fixing groove.

[0013] Furthermore, the door frame side mounting bracket is also provided with mounting holes, and door frame side mounting screws are installed in the mounting holes. The sliding column assembly includes a sliding column sleeve, with a first sliding column and a second sliding column respectively installed at both ends of the sliding column sleeve. A sliding column thrust spring is installed inside the sliding column sleeve, with the first sliding column and the second sliding column respectively installed at both ends of the sliding column thrust spring, so that the sliding column thrust spring is in a compressed state.

[0014] The sliding guide plate is provided with a sliding guide arc groove, a limiting and fixing arc groove, and a left and right adjustment clearance arc groove. The sliding guide arc groove is connected to the limiting and fixing arc groove, and the left and right adjustment clearance arc groove and the sliding guide arc groove limiting and fixing arc groove are respectively located on both sides of the sliding guide plate. The door leaf side fixing bracket assembly also has a door leaf side mounting plate on one side.

[0015] The beneficial effects of this invention are as follows: The concealed hinge provided by this invention, which enables rotational angle positioning, has advantages such as high stability, easy adjustment, and the ability to open to 90°. The unique structural design of this application gives it extremely high stability. Furthermore, the adjustable door frame and door leaf fixing components make it very convenient to use. More importantly, this application can achieve angle positioning, a capability that cannot be achieved in existing technologies. Therefore, this application has significant economic and practical value. Attached Figure Description

[0016] Figure 1 This is a perspective view of a concealed hinge that can achieve rotation angle positioning according to the present invention. Figure 2 This is a partial structural diagram of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 3 This is another partial structural diagram of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 4 This is an exploded view of a concealed hinge that can achieve rotation angle positioning according to the present invention. Figure 5 This is a partial exploded view of a concealed hinge that can achieve rotation angle positioning according to the present invention. Figure 6This is another partially exploded view of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 7 This is a structural diagram of the opening and closing sequence plate of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 8 This is a structural diagram of the main body of a rotating arm with a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 9 This is a structural diagram of a sliding guide plate of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 10 This is a structural diagram of a door frame side fixing seat for a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 11 This is a structural diagram of a limiting block of a concealed hinge that can achieve rotation angle positioning according to the present invention. Figure 12 This is an assembly drawing of a concealed hinge door frame side fixing seat assembly that can achieve rotation angle positioning according to the present invention; Figure 13 This invention relates to a door frame side fixing seat assembly structure for a concealed hinge that can achieve rotation angle positioning; Figure 14 This is a closed state diagram of a concealed hinge that can achieve rotation angle positioning according to the present invention; Figure 15 This invention provides a hidden hinge that can achieve rotation angle positioning, showing the opening state from 0-45°. Figure 16 This invention provides a 45-90° open state diagram that enables rotation angle positioning; Figure 17 This is a diagram of a concealed hinge that can achieve rotation angle positioning, open at 180°. Detailed Implementation

[0017] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. The drawings are for reference and illustration only and do not constitute a limitation on the scope of protection of the present invention.

[0018] like Figure 1-6 As shown, this embodiment provides a concealed hinge that can achieve rotation angle positioning, including a rotating arm body, and the two ends of the rotating arm body are respectively provided with a door frame side fixing seat assembly (2) and a door leaf side fixing seat assembly (3).

[0019] In this embodiment, one end of the rotating arm body is provided with a first rotating shaft hole (101) and a fixed limiting groove (102). The other end is provided with an opening and closing sequence plate mounting hole (103), a clearance groove (104), and a second rotating shaft hole (105). A connecting rod A (4) and a sliding column assembly (5) are respectively installed in the first rotating shaft hole (101) and the fixed limiting groove (102). The connecting rod A (4) and the sliding column assembly (5) are connected to the door frame side fixing seat assembly (2). A first connecting shaft (6) is installed in the opening and closing sequence plate mounting hole (103), and a second connecting shaft (7) is installed in the second rotating shaft hole (105). The second connecting shaft (7) is connected to the door leaf side fixing seat assembly (3).

[0020] like Figure 7 As shown, in this embodiment, the two sides of the main body of the rotating arm are provided with opening and closing sequence plates (8), and the opening and closing sequence plates (8) are provided with positioning grooves (801), limiting groove structure A (802), mounting holes (803), rivet mounting positions (804) and limiting groove structure B (805). The positioning groove (801) cooperates with the sliding column assembly (5). The mounting hole (803) mates with the first connecting shaft (6).

[0021] A rivet (806) is installed on the rivet mounting position (804), and a wear-resistant part (807) is installed on the rivet.

[0022] In this embodiment, the door leaf side fixing seat assembly (3) includes a door leaf fixing seat (9) connected to the second connecting shaft (7). The door leaf fixing seat (9) is equipped with a sliding guide plate (10) and a door leaf adjustment structure (11). The door leaf fixing seat (9) and the sliding guide plate (10) are connected to the door leaf adjustment structure (11) through the alignment plate limiting connector A (12) and the alignment plate limiting connector B (13). The door leaf adjustment structure (11) includes a connecting guide rod (14) disposed between the door leaf fixing seats (9) and an upper and lower adjusting sleeve (16) connected to the connecting guide rod (14) by an adjusting screw (15). The upper and lower adjusting sleeve (16) is also provided with a nut screw mounting position (17) for installing a nut screw (18). The upper and lower adjustment sleeve (16) is also equipped with an upper and lower adjustment column (19), which abuts against the nut screw (18) to adjust in the upper and lower direction.

[0023] In this embodiment, the upper and lower adjusting column (19) is provided with a sealing groove (20), and a sealing ring (21) is fitted on the sealing groove (20). The end of the upper and lower adjusting column (19) is a sloped structure (191), and the slope of the sloped structure (191) abuts against the machine screw (18).

[0024] In this embodiment, the upper and lower adjusting sleeve (16) and the connecting guide rod (14) are respectively provided with a first adjusting screw mounting position (161) and a second adjusting screw mounting position (141). The adjusting screw (15) passes through the first adjusting screw mounting position (161) and the second adjusting screw mounting position (141) in sequence and is fixed by a nut (22).

[0025] In this embodiment, a bearing (23) is provided between the door leaf fixing seat (9) and the second connecting shaft (7).

[0026] In this embodiment, the door frame side fixing seat assembly (2) includes a door frame side fixing seat (201), and the door frame side fixing seats (201) are connected to each other by a connecting rod. A limit block (203) is also installed on the door frame side fixing seat (201). like Figure 11 As shown, the limiting block (203) is provided with a spring mounting position (2031) and a limiting contact arc surface (2032), and a spring (2033) is installed on the spring mounting position (2031). The other end of the spring (2033) is equipped with a limit force adjustment block (204). like Figure 10 As shown, the door frame side fixing seat (201) is also provided with a limit block adjustment hole (2011), the limit force adjustment block (204) is installed in the limit block adjustment hole (2011), and a force adjustment hole (2012) is also provided in communication with the limit block adjustment hole (2011). A force adjustment screw (2013) is installed in the force adjustment hole (2012), and a force adjustment screw hole (2014) is provided on the limit force adjustment block (204) for installing the force adjustment screw (2013). like Figure 12-14 As shown, the limiting force adjustment block (204) is also provided with a spring fixing post (2041) for inserting into the other end of the spring (2033). In this embodiment, the connecting rod includes a first connecting rod (2021) and a second connecting rod (2022). The door frame side fixing seat (201) is provided with a limiting block mounting position (205). A locking screw (2051) is installed in the limiting block mounting position (205). The locking screw (2051) passes through the limiting block (203) and is fixed by a nut (2052). The door frame side fixing seat (201) is also provided with a sliding guide groove (206) and a limiting fixing groove (207).

[0027] In this embodiment, the door frame side fixing seat (201) is also provided with fixing holes (208), and door frame side mounting fixing screws (209) are installed in the fixing holes (208). The sliding column assembly (5) includes a sliding column sleeve (501), with a first sliding column (502) and a second sliding column (503) respectively installed at both ends of the sliding column sleeve (501). A sliding column thrust spring (504) is installed inside the sliding column sleeve (501). The first sliding column (502) and the second sliding column (503) are respectively installed at both ends of the sliding column thrust spring (504), so that the sliding column thrust spring (504) is in a compressed state.

[0028] like Figure 9 As shown, the sliding guide plate (10) is provided with a sliding guide arc groove (100), a limiting and fixing arc groove (200), and a left and right adjustment clearance arc groove (300). The sliding guide arc groove (100) is connected to the limiting and fixing arc groove (200). The left and right adjustment clearance arc groove (300), the sliding guide arc groove (100), and the limiting and fixing arc groove (200) are respectively provided on both sides of the sliding guide plate (10). The door leaf side mounting plate (400) is also provided on one side of the door leaf side fixing seat assembly (3).

[0029] The working process for this application is as follows: Startup process: Closed state as Figure 14 As shown, during the opening process, the angle from 0° to 45° is as follows: Figure 15 As shown, during the opening process, from 45° to 90°, as... Figure 16 As shown, during the opening process from 90° to 180°, as... Figure 17 As shown, During the opening process, from 0° to 45°, the sliding column assembly (5) is enclosed by the fixed limiting groove (102) and the positioning groove (801), and rotates at the position of the sliding guide groove (206). Since the limiting groove structure B (805) and the limiting groove structure A (802) in the opening and closing sequence piece are engaged with the sequence piece limiting connector A (12) and the sequence piece limiting connector B (13), and the opening and closing sequence piece sliding wear-resistant part (807) is in the limiting fixed arc groove (200), they become a whole; at this time, only the connecting rod A (4) in the first rotating shaft hole (101) rotates.

[0030] During the opening process, when the sliding column assembly (5) is in the same enclosure of the fixed limiting groove (102) and the positioning groove (801) from 45° to 90°, it continues to slide in the sliding guide groove (206) during the opening process. At the same time, after pressing the limiting block (203), it enters the limiting fixing groove (207). At this time, the positioning groove (801) is separated from the sliding column assembly (5), and the limiting groove structure A (802) and the limiting groove structure B (805) are separated from the sequential plate limiting connector A (12) and the sequential plate limiting connector B (13). The opening and closing sequential plate sliding wear-resistant part (807) is dislodged from the limiting fixing arc groove (200). At the same time, the sliding column assembly (5) is fixed in the limiting fixing groove (207) due to the force of pressing the limiting block (203). At this time, only the second rotating shaft hole (105) rotates.

[0031] This means that the 90° positioning function can be enabled at this time.

[0032] During the opening process from 90° to 180°, only the second rotating shaft hole (105) rotates. At this time, the opening and closing sequence plate sliding wear-resistant part (807) disengages from the limiting and fixing arc groove (200) and slides along the sliding guide arc groove (100).

[0033] Shutdown process: like Figure 17 As shown, during the closing process from 180° to 90°, the second rotating shaft hole (105) rotates. At this time, the sliding wear-resistant part (807) of the opening and closing sequence plate (a rubber sleeve is used in this application) moves along the sliding guide arc groove (100) until it slides into the limiting and fixing arc groove (200). At this time, the upper limit groove structure A (802) and the limiting groove structure B (805) of the opening and closing sequence plate (8) are in contact with the limiting connecting rod. At this time, the positioning groove (801) begins to contact the sliding column assembly (5).

[0034] like Figure 16 As shown, during the process of closing from 90° to 45°, only the shaft at the first rotating shaft hole (101) rotates.

[0035] At this time, the sliding wear-resistant part (807) of the opening and closing sequence plate enters the limiting and fixing arc groove (200), and the upper limit groove structure A (802) and the limiting groove structure B (805) of the opening and closing sequence plate (8) cooperate with the limiting connecting rod. At this time, the second rotating shaft hole (105) stops rotating. At this time, the positioning groove (801) further presses the sliding column assembly (5) and the limiting block (203) and the limiting block spring (2033) and then disengages from the limiting and fixing groove (207). At the same time, the positioning groove (801) and the fixed limiting groove (102) hug each other, and the sliding column assembly (5) further enters the sliding guide groove (206).

[0036] During this movement, the second rotating shaft hole (105) no longer rotates.

[0037] like Figure 15 As shown, during the process of closing from 45° to 0°, only the 201 rotating shaft hole 1 rotates.

[0038] At this time, the 8 sliding columns are fully inserted into the fixed limiting groove (102) and the positioning groove (801). At the same time, the limiting groove structure A (802) and the limiting groove structure B (805) are in contact with the limiting connecting rod, and the opening and closing sequence plate sliding wear-resistant part (807) is in contact with the limiting fixed arc groove (200).

[0039] Keep closed until 0°C Figure 16 As shown.

[0040] The concealed hinge provided by this invention, which enables rotational angle positioning, has advantages such as high stability, easy adjustment, and the ability to open to 90°. The unique structural design of this application gives it extremely high stability. Furthermore, the adjustable door frame and door leaf fixing components make it very convenient to use. More importantly, this application can achieve angle positioning, a capability that cannot be achieved in existing technologies. Therefore, this application has significant economic and practical value.

[0041] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A concealed hinge capable of achieving rotational angle positioning, characterized in that: It includes a rotating arm body, and the two ends of the rotating arm body are respectively provided with a door frame side fixing seat assembly (2) and a door leaf side fixing seat assembly (3). One end of the main body of the rotating arm is provided with a first rotating shaft hole (101) and a fixed limiting groove (102). The other end is provided with an opening and closing sequence plate mounting hole (103), a clearance groove (104), and a second rotating shaft hole (105). A connecting rod A (4) and a sliding column assembly (5) are respectively installed in the first rotating shaft hole (101) and the fixed limiting groove (102). The connecting rod A (4) and the sliding column assembly (5) are connected to the door frame side fixing seat assembly (2). A first connecting shaft (6) is installed in the opening and closing sequence plate mounting hole (103), and a second connecting shaft (7) is installed in the second rotating shaft hole (105). The second connecting shaft (7) is connected to the door leaf side fixing seat assembly (3). The main body of the rotating arm is provided with opening and closing sequence plates (8) on both sides. The opening and closing sequence plates (8) are provided with positioning grooves (801), limiting groove structure A (802), mounting holes (803), rivet mounting positions (804) and limiting groove structure B (805). The positioning groove (801) cooperates with the sliding column assembly (5). The mounting hole (803) mates with the first connecting shaft (6). A rivet (806) is installed on the rivet mounting position (804), and a wear-resistant part (807) is installed on the rivet. The door leaf side fixing seat assembly (3) includes a door leaf fixing seat (9) connected to the second connecting shaft (7). The door leaf fixing seat (9) is equipped with a sliding guide plate (10) and a door leaf adjustment structure (11). The door leaf fixing seat (9) and the sliding guide plate (10) are connected to the door leaf adjustment structure (11) through the alignment plate limiting connector A (12) and the alignment plate limiting connector B (13). The door leaf adjustment structure (11) includes a connecting guide rod (14) disposed between the door leaf fixing seats (9) and an upper and lower adjusting sleeve (16) connected to the connecting guide rod (14) by an adjusting screw (15). The upper and lower adjusting sleeve (16) is also provided with a nut screw mounting position (17) for installing a nut screw (18). The upper and lower adjusting sleeve (16) is also equipped with an upper and lower adjusting column (19), which abuts against the caliper screw (18) to adjust in the upper and lower direction. The upper and lower adjusting column (19) is provided with a sealing groove (20), and a sealing ring (21) is fitted on the sealing groove (20). The end of the upper and lower adjusting column (19) is a sloped structure (191), and the slope of the sloped structure (191) abuts against the nut screw (18). The upper and lower adjusting sleeve (16) and the connecting guide rod (14) are respectively provided with a first adjusting screw mounting position (161) and a second adjusting screw mounting position (141). The adjusting screw (15) passes through the first adjusting screw mounting position (161) and the second adjusting screw mounting position (141) in sequence and is fixed by a nut (22). A bearing (23) is provided between the door leaf fixing seat (9) and the second connecting shaft (7).

2. The concealed hinge capable of rotational angle positioning according to claim 1, characterized in that: The door frame side fixing assembly (2) includes a door frame side fixing seat (201), and the door frame side fixing seats (201) are connected to each other by a connecting rod. A limit block (203) is also installed on the door frame side fixing seat (201). The limiting block (203) is provided with a spring mounting position (2031) and a limiting contact arc surface (2032), and a spring (2033) is installed on the spring mounting position (2031). The other end of the spring (2033) is equipped with a limit force adjustment block (204). The door frame side fixing seat (201) is also provided with a limit block adjustment hole (2011). The limit force adjustment block (204) is installed in the limit block adjustment hole (2011). A force adjustment hole (2012) is also provided in communication with the limit block adjustment hole (2011). A force adjustment screw (2013) is installed in the force adjustment hole (2012). The limit force adjustment block (204) is provided with a force adjustment screw hole (2014) for installing the force adjustment screw (2013). The limiting force adjustment block (204) is also provided with a spring fixing post (2041) for inserting into the other end of the spring (2033).

3. A concealed hinge capable of rotational angle positioning according to claim 2, characterized in that: The connecting rod includes a first connecting rod (2021) and a second connecting rod (2022). The door frame side fixing seat (201) is provided with a limiting block mounting position (205). A locking screw (2051) is installed in the limiting block mounting position (205). The locking screw (2051) passes through the limiting block (203) and is fixed by a nut (2052). The door frame side fixing seat (201) is also provided with a sliding guide groove (206) and a limiting fixing groove (207).

4. A concealed hinge capable of rotational angle positioning according to claim 2, characterized in that: The door frame side fixing seat (201) is also provided with fixing holes (208), and door frame side mounting fixing screws (209) are installed in the fixing holes (208). The sliding column assembly (5) includes a sliding column sleeve (501), with a first sliding column (502) and a second sliding column (503) respectively installed at both ends of the sliding column sleeve (501). A sliding column thrust spring (504) is installed inside the sliding column sleeve (501). The first sliding column (502) and the second sliding column (503) are respectively installed at both ends of the sliding column thrust spring (504), so that the sliding column thrust spring (504) is in a compressed state. The sliding guide plate (10) is provided with a sliding guide arc groove (100), a limiting and fixing arc groove (200), and a left and right adjustment clearance arc groove (300). The sliding guide arc groove (100) is connected to the limiting and fixing arc groove (200). The left and right adjustment clearance arc groove (300), the sliding guide arc groove (100), and the limiting and fixing arc groove (200) are respectively provided on both sides of the sliding guide plate (10). The door leaf side mounting plate (400) is also provided on one side of the door leaf side fixing seat assembly (3).

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