An improved structure of a buffer reset hinge

Abstract

An improved structure of a buffer reset hinge comprises a first hinge and a second hinge, wherein the first hinge is provided with a first positioning sleeve, and the second hinge is provided with a second positioning sleeve, wherein the first and second positioning sleeves are hinged as a whole through an upper hinge shaft and a lower hinge shaft, wherein the upper hinge shaft and the lower hinge shaft are fixed in the second positioning sleeve, so that the first positioning sleeve can rotate relative thereto, wherein a guide ring is installed in the first positioning sleeve, wherein a driving rod is installed in the guide ring and extends out of both ends of the guide ring, wherein an upper driver is installed at the upper end of the driving rod, and a lower driver is installed at the lower end of the driving rod. The beneficial effects of the present invention are as follows: 1. The structure is simple, the production cost is low, and the market competitiveness is improved; 2. The buffer and the spring are built into the hinge shaft, so that the hinge structure is more compact and small; the thrust of the spring cooperates with the driver to realize the automatic closing of the hinge, and the short service life caused by the large deformation of the torsion spring in the traditional torsion spring reset is avoided.

Description

Technical Field

[0001] The invention relates to a hardware accessory, in particular to an improved structure of a buffering resetting hinge. Background Art

[0002] In daily life, some details often play a more important role, such as screws, hinges, etc. Although they are not large, they are indeed indispensable accessories, especially for doors, windows and furniture. The role of hinges is unquestionable, and the frequency of use of hinges is very high, so the requirements for quality are also very high.

[0003] Hinges are usually made of two folds, which are parts that connect two parts of an object and enable them to move. With the continuous advancement of technology, the types of hinges have also shown a trend of diversification. In fact, hinges can be divided into different types according to different uses, such as ordinary hinges, pipe hinges, gate hinges, etc. However, the hinges currently used for solid wood doors have poor buffering effects, are easy to damage the door body, and do not have a sound-absorbing function. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an improved structure of a buffer reset hinge which is simple in structure, easy to use and compact in size.

[0005] The object of the present invention is achieved in the following manner: an improved structure of a buffer reset hinge, comprising a first hinge and a second hinge, the first hinge being provided with a first positioning sleeve, the second hinge being provided with a second positioning sleeve, the first and second positioning sleeves being hinged together by an upper hinge shaft and a lower hinge shaft, the upper hinge shaft and the lower hinge shaft being fixed in the second positioning sleeve so that the first positioning sleeve can rotate relative thereto, a guide ring being installed in the first positioning sleeve, a drive rod being installed in the guide ring, the drive rod extending out of both ends of the guide ring, an upper driver being installed at the upper end of the drive rod, and a lower driver being installed at the lower end of the drive rod;

[0006] The first positioning sleeve, the guide ring, the driving rod, the upper driver and the lower driver are connected by a coaxial device to achieve synchronous rotation, and the guide ring is connected to the upper driver and the lower driver by a plane bearing;

[0007] A buffer is installed in the upper hinge shaft, and the buffer is installed with an upper guide wheel through the upper connecting shaft to press against the upper end surface of the upper driver. The upper connecting shaft extends into the upper guide groove arranged on the cylindrical surface of the upper hinge shaft, so that the upper guide wheel can only move axially along the upper guide groove;

[0008] A spring driver is installed in the lower hinge shaft, and a lower guide wheel is installed on the spring driver through a lower connecting shaft. The lower guide wheel presses against the lower end surface of the lower driver, and the lower connecting shaft extends into a lower guide groove arranged on the cylindrical surface of the lower hinge shaft, so that the lower guide wheel can only move axially along the lower guide groove;

[0009] When the hinge is opened or closed, the upper driver and the lower driver can be driven by the guide ring and the driving rod to rotate relative to the upper and lower guide wheels, and the upper and lower guide wheels and the upper and lower drivers are pressed against each other to realize automatic buffer closing of the hinge.

[0010] The coaxial device comprises a plurality of bosses arranged on the cylindrical surface of the guide ring and positioning grooves arranged in the inner hole of the first positioning sleeve. The grooves and bosses cooperate with each other so that the first positioning sleeve and the guide ring rotate synchronously.

[0011] The coaxial device comprises a special-shaped hole arranged on the inner hole of the guide ring and a special-shaped boss arranged on the cylindrical surface of the driving rod. The special-shaped hole and the special-shaped boss are axially connected so that the guide ring and the driving rod rotate synchronously.

[0012] The coaxial device also includes a guide recessed platform arranged on the driving rod and a guide protrusion arranged on the inner holes of the upper and lower drivers. The guide recessed platform cooperates with the guide protrusion so that the driving rod and the upper and lower drivers rotate synchronously, and the upper and lower drivers can move axially relative to the driving rod.

[0013] The surfaces of the upper hinge shaft and the lower hinge shaft are provided with key teeth, which cooperate with the key grooves provided in the second positioning sleeve, so that the upper hinge shaft, the lower hinge shaft and the second positioning sleeve rotate synchronously.

[0014] The upper guide wheel is installed on the top end of the piston rod of the buffer.

[0015] The spring driver comprises a guide wheel shaft and a spring. The spring and the guide wheel shaft are installed in the lower hinge shaft. The lower guide wheel is installed at the top of the guide wheel shaft. The spring pushes the guide wheel shaft to always move in the direction of the lower driver.

[0016] The upper end surface of the upper driver is symmetrically provided with two inwardly recessed V-shaped grooves, and the two V-shaped grooves are connected by a transition platform.

[0017] The lower end surface of the lower driver is provided with a reset groove, and the cross section of the reset groove is in a "√" shape.

[0018] The axes of the upper guide wheel and the lower guide wheel are staggered by 90 degrees.

[0019] The beneficial effects of the present invention are: 1. Simple structure, low production cost and improved market competitiveness. 2. The buffer and spring are built into the hinge shaft, making the hinge structure more compact. The thrust of the spring cooperates with the driver to achieve automatic closing of the hinge, avoiding the short service life caused by the large deformation of the torsion spring in the traditional torsion spring reset. 3. The buffer and spring driver are installed in the upper hinge shaft and the lower hinge shaft to play a role in radial positioning of the buffer and spring driver, avoiding direct action on the positioning sleeve to affect its service life. 4. The guide ring is connected to the upper driver and the lower driver through a plane bearing to avoid direct contact friction between the two, so that the hinge can run stably and quietly. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is an effect diagram of the hinge closed state of the present invention.

[0021] Figure 2 , 3 This is an assembly diagram of the hinge of the present invention in a closed state.

[0022] Figure 4 This is a schematic diagram of the hinge of the present invention when it is opened 90°.

[0023] Figure 5 This is a schematic diagram of the hinge of the present invention when it is opened 45°.

[0024] Figure 6 The hinge of the present invention is opened 90° structural assembly drawing.

[0025] Figure 7 This is a structural assembly diagram when the hinge of the present invention is opened 45°.

[0026] Figure 8 , 9 10 is an assembly diagram of the buffer and spring driver in the present invention.

[0027] Fig.11 , 12 It is a schematic diagram of the driver structure in the present invention. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below with reference to the accompanying drawings. An improved structure of a buffer reset hinge, comprising a first hinge 1 and a second hinge 2, wherein the first hinge 1 is provided with a first positioning sleeve 11, and the second hinge 2 is provided with a second positioning sleeve 21, characterized in that: the first positioning sleeve 11 and the second positioning sleeve 21 are hinged as a whole through an upper hinge shaft 3 and a lower hinge shaft 4, the upper hinge shaft 3 and the lower hinge shaft 4 are fixed in the second positioning sleeve 21, so that the first positioning sleeve 11 can rotate relative thereto, a guide ring 6 is installed in the first positioning sleeve 11, a driving rod 61 is installed in the guide ring 6, the driving rod 61 extends out of both ends of the guide ring 6, an upper driver 62 is installed at the upper end of the driving rod 61, and a lower driver 63 is installed at the lower end of the driving rod 61;

[0029] The first positioning sleeve 11, the guide ring 6, the driving rod 61, the upper driver 62, and the lower driver 63 are connected by a coaxial device to achieve synchronous rotation. The guide ring 6 is connected to the upper driver 62 and the lower driver 63 by a plane bearing 64;

[0030] The upper hinge shaft 3 is provided with a buffer 31, and the buffer 31 is provided with an upper guide wheel 32 through an upper connecting shaft 35 to press against the upper end surface of the upper driver 62, and the upper connecting shaft 35 extends into an upper guide groove 36 provided on the cylindrical surface of the upper hinge shaft 3, so that the upper guide wheel 32 can only move axially along the upper guide groove 36;

[0031] A spring driver 41 is installed in the lower hinge shaft 4, and a lower guide wheel 42 is installed on the spring driver 41 through a lower connecting shaft 46. The lower guide wheel 42 presses against the lower end surface of the lower driver 63, and the lower connecting shaft 46 extends into a lower guide groove 47 provided on the cylindrical surface of the lower hinge shaft 4, so that the lower guide wheel 42 can only move axially along the lower guide groove 47;

[0032] When the hinge is opened or closed, the upper driver 62 and the lower driver 63 can be driven by the guide ring 6 and the driving rod 61 to rotate relative to the upper guide wheel 32 and the lower guide wheel 42, and the upper and lower guide wheels and the upper and lower drivers are squeezed against each other to realize the automatic buffer closing of the hinge;

[0033] The coaxial device includes a plurality of bosses 65 arranged on the cylindrical surface of the guide ring 6 and positioning grooves arranged in the inner hole of the first positioning sleeve 11. The grooves and bosses cooperate with each other so that the first positioning sleeve 11 and the guide ring 6 rotate synchronously.

[0034] The coaxial device includes a special-shaped hole 66 provided on the inner hole of the guide ring 6 and a special-shaped boss 67 provided on the cylindrical surface of the driving rod 61. The special-shaped hole 66 and the special-shaped boss 67 are axially connected, so that the guide ring 6 and the driving rod 61 rotate synchronously;

[0035] The coaxial device also includes a guide recess 68 provided on the driving rod 61 and a guide boss 69 provided on the inner holes of the upper and lower drivers. The guide recess cooperates with the guide boss so that the driving rod and the upper and lower drivers rotate synchronously, and the upper and lower drivers can move axially relative to the driving rod.

[0036] The upper hinge shaft 3 and the lower hinge shaft 4 are provided with key teeth 33 on their surfaces, which cooperate with the key grooves provided in the second positioning sleeve, so that the upper hinge shaft 3, the lower hinge shaft 4 and the second positioning sleeve 21 rotate synchronously.

[0037] The upper guide wheel 32 is installed on the top of the piston rod 34 of the buffer 31 .

[0038] The spring driver 41 includes a guide wheel shaft 43 and a spring 44. The spring 44 and the guide wheel shaft 43 are installed in the lower hinge shaft 4. The lower guide wheel 42 is installed on the top of the guide wheel shaft 43. The spring 44 pushes the guide wheel shaft 43 to always move in the direction of the lower driver 63.

[0039] The upper end surface of the upper driver 62 is symmetrically provided with two inwardly recessed V-shaped grooves 621 , and the two V-shaped grooves are connected by a transition platform 622 .

[0040] The lower end surface of the lower driver 63 is provided with a reset groove 631, and the cross section of the reset groove 631 is in a "√" shape.

[0041] The axes of the upper guide wheel 32 and the lower guide wheel 42 are staggered by 90°.

[0042] Working principle:

[0043] like Figure 1 , 2 As shown in FIG. 3 , when the hinge is in the closed state, the lower guide wheel enters the bottom of the reset groove 631 of the lower driver 63 under the support of the spring, while the upper guide wheel 32 is located at the top of the V-shaped groove, so that the buffer is in a compressed state.

[0044] like Figure 4 , 5 As shown, when the hinge is opened, the first hinge and the second hinge move relative to each other, so that the upper guide wheel moves from the top of the V-shaped groove to the bottom of the groove under the reset action of the buffer, and the lower guide wheel moves downward under the squeezing action of the slope of the reset groove, thereby compressing the spring and playing the role of storing energy when the hinge is closed.

[0045] like Figure 6 As shown in the figure, when the hinge is fully opened to 90°, the upper guide wheel enters the bottom of the V-shaped groove, the buffer is fully extended, and is in a buffering state. The lower guide wheel moves to the top of the reset groove, and the spring is in the maximum compression state.

[0046] like Figure 5 , 7 As shown, when the user releases the door panel, the hinge loses its external support force, the spring rebounds, and the lower guide wheel is driven upward through the guide wheel shaft. At this time, the force of the lower guide wheel is located on the slope of the reset groove, causing the lower driver to deflect upward, thereby achieving the automatic reset of the hinge. In order to avoid the door panel and the door frame from colliding and generating noise due to the reset speed being too fast, the upper driver in this case, when resetting and rotating, the groove wall of the V-groove and the upper guide wheel squeeze each other, and the upper guide wheel is used to push the buffer to reset slowly. Under the interaction of forces, the upper driver rotates slowly, thereby achieving the automatic buffer reset of the hinge.

[0047] Next, in order to make the upper and lower guide wheels move only along the axis, so that the upper and lower guide wheels and the V-grooves and reset grooves of the upper and lower drivers squeeze each other to generate a force, the buffer 31 in this case is equipped with an upper guide wheel 32 through an upper connecting shaft 35 to press against the upper end surface of the upper driver 62, and the upper connecting shaft 35 extends into an upper guide groove 36 set on the cylindrical surface of the upper hinge shaft 3, so that the upper guide wheel 32 can only move axially along the upper guide groove 36. The spring driver 41 is equipped with a lower guide wheel 42 through a lower connecting shaft 46, and the lower guide wheel 42 presses against the lower end surface of the lower driver 63, and the lower connecting shaft 46 extends into a lower guide groove 47 set on the cylindrical surface of the lower hinge shaft 4, so that the lower guide wheel 42 can only move axially along the lower guide groove 47.

[0048] It should be noted that the buffer and spring driver in this case are installed in the upper hinge shaft and the lower hinge shaft, which play a role in radial positioning of the buffer and the spring driver, avoiding the force acting directly on the positioning sleeve and affecting its service life. At the same time, the guide ring is connected to the upper driver and the lower driver through a plane bearing to avoid direct contact and friction between the two, so that the hinge can run stably and quietly.

[0049] In summary, compared with the traditional technology, in this case, a reset device and a buffer device are provided in the hinge shaft of the hinge, so that the hinge can automatically buffer and reset, while meeting the use requirements, avoiding the noise caused by the traditional reset hinge that easily causes the door panel and the door frame to collide with each other. In addition, in this case, a unique driver structure is used in conjunction with the buffer device and the reset device, and a spring is used to replace the traditional torsion spring structure. Under the premise of ensuring its elastic force, the spring is more stable and efficient than the torsion spring when moving, and the movement amplitude is relatively small. In addition, the movement direction of the buffer and the spring coincides with the axis of the door shaft, so the above components do not need to protrude from the hinge, making the structure more compact and small, thereby making the appearance of the door and window installed with the hinge more beautiful.

[0050] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An improved structure of a buffer reset hinge, comprising a first hinge (1) and a second hinge (2), wherein the first hinge (1) is provided with a first positioning sleeve (11), and the second hinge (2) is provided with a second positioning sleeve (21), characterized in that: The first positioning sleeve (11) and the second positioning sleeve (21) are hingedly connected as a whole via an upper hinge shaft (3) and a lower hinge shaft (4); the upper hinge shaft (3) and the lower hinge shaft (4) are fixed in the second positioning sleeve (21) so that the first positioning sleeve (11) can rotate relative thereto; a guide ring (6) is installed in the first positioning sleeve (11); a driving rod (61) is installed in the guide ring (6); the driving rod (61) extends out of both ends of the guide ring (6); an upper driver (62) is installed at the upper end of the driving rod (61); and a lower driver (63) is installed at the lower end of the driving rod (61); The first positioning sleeve (11), the guide ring (6), the driving rod (61), the upper driver (62) and the lower driver (63) are connected via a coaxial device to achieve synchronous rotation, and the guide ring (6) is connected to the upper driver (62) and the lower driver (63) via a plane bearing (64); A buffer (31) is installed in the upper hinge shaft (3), and the buffer (31) is installed with an upper guide wheel (32) through an upper connecting shaft (35) to press against the upper end surface of the upper driver (62), and the upper connecting shaft (35) extends into an upper guide groove (36) provided on the cylindrical surface of the upper hinge shaft (3), so that the upper guide wheel (32) can only move axially along the upper guide groove (36); A spring driver (41) is installed in the lower hinge shaft (4), a lower guide wheel (42) is installed on the spring driver (41) via a lower connecting shaft (46), the lower guide wheel (42) is pressed against the lower end surface of the lower driver (63), and the lower connecting shaft (46) extends into a lower guide groove (47) provided on the cylindrical surface of the lower hinge shaft (4), so that the lower guide wheel (42) can only move axially along the lower guide groove (47); When the hinge is opened or closed, the guide ring (6) and the drive rod (61) can drive the upper driver (62) and the lower driver (63) to rotate relative to the upper guide wheel (32) and the lower guide wheel (42), and the upper and lower guide wheels and the upper and lower drivers can be pressed against each other to realize the automatic buffer closing of the hinge; The coaxial device comprises a plurality of bosses (65) arranged on the cylindrical surface of the guide ring (6) and positioning grooves arranged in the inner hole of the first positioning sleeve (11), the grooves and bosses cooperate with each other, so that the first positioning sleeve (11) and the guide ring (6) rotate synchronously; The coaxial device comprises a special-shaped hole (66) arranged on the inner hole of the guide ring (6) and a special-shaped boss (67) arranged on the cylindrical surface of the driving rod (61), and the special-shaped hole (66) and the special-shaped boss (67) are axially connected to each other so that the guide ring (6) and the driving rod (61) rotate synchronously; The coaxial device further comprises a guide recess (68) arranged on the driving rod (61) and a guide protrusion (69) arranged on the inner holes of the upper and lower drivers, wherein the guide recess cooperates with the guide protrusion so that the driving rod and the upper and lower drivers rotate synchronously, and the upper and lower drivers can move axially relative to the driving rod; The upper hinge shaft (3) and the lower hinge shaft (4) are provided with key teeth (33) on their surfaces, which cooperate with key grooves provided in the second positioning sleeve, so that the upper hinge shaft (3), the lower hinge shaft (4) and the second positioning sleeve (21) rotate synchronously.

2. The improved structure of a buffer reset hinge according to claim 1, characterized in that: The upper guide wheel (32) is mounted on the top end of the piston rod (34) of the buffer (31).

3. The improved structure of a buffer reset hinge according to claim 1, characterized in that: The spring driver (41) comprises a guide wheel shaft (43) and a spring (44). The spring (44) and the guide wheel shaft (43) are installed in the lower hinge shaft (4). The lower guide wheel (42) is installed on the top of the guide wheel shaft (43). The spring (44) pushes the guide wheel shaft (43) to always move in the direction of the lower driver (63).

4. The improved structure of a buffer reset hinge according to claim 1, characterized in that: The upper end surface of the upper driver (62) is symmetrically provided with two inwardly recessed V-shaped grooves (621), and the two V-shaped grooves are connected via a transition platform (622).

5. The improved structure of a buffer reset hinge according to claim 1, characterized in that: The lower end surface of the lower driver (63) is provided with a reset groove (631), and the cross section of the reset groove (631) is in a "√" shape.

6. The improved structure of a buffer reset hinge according to claim 1, characterized in that: The axes of the upper guide wheel (32) and the lower guide wheel (42) are offset by 90°.

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