CN209799692U - Upturning door hinge with opening and closing assistance - Google Patents

Abstract

The utility model provides an upturning door hinge with opening and closing assistance, which includes a door bracket and a hinge seat, and a transmission assembly is hinged between the connection between the hinge seat and the door bracket. The transmission assembly includes a transmission connecting rod group, a rotating cam, Spring, the center point shaft of the rotating cam is connected to the hinge seat, the swing end of the rotating cam is hinged with the positioning end of the transmission link group, the driving end of the transmission link group is hinged with the door bracket, and the positioning end of the spring is installed on the hinge seat , the active end of the spring is provided with a bearing that is tangentially connected to the outer edge of the rotating cam under the action of elasticity, and the tangent point between the bearing and the outer edge of the rotating cam is below or above the line connecting the center point of the bearing and the rotating cam. The door-closing torque or door-opening torque that promotes the rotation of the rotating cam realizes automatic opening and closing, which is labor-saving and convenient, reduces deformation, improves structural stability and reliability, and has strong applicability to ensure the quality of the product.

Description

A flip-up door hinge with opening and closing assistance

technical field

The utility model relates to the field of upturning door hinges, in particular to an upturning door hinge with opening and closing assistance.

Background technique

The existing flip door hinge includes a main body, a spring, a hook lock and a hook; the spring, the hook lock and the hook are respectively installed on the main body; the hook and the spring are respectively connected with the hook lock. The elastic force of the spring is used to support and open the flap, so that the flap does not hang down and prevents the flap from rebounding at any angle.

In actual operation, the above-mentioned flip door hinge has the following deficiencies:

1. The bearing capacity is poor. When the weight of the door body is heavy, the hinge is easily deformed, which affects the normal use of the flap door.

2. When the flap door is opened upwards, it is necessary to overcome the weight of the door body first, the load is heavy, laborious and inconvenient to use.

3. It cannot be closed automatically, and it needs to use external force to achieve the closing effect, and it is only used.

4. The flap door can only open the door body at 90°, which limits the opening range of the door body and cannot meet the needs of users.

5. It can only drive the flap door to rotate upwards to open or close, that is, it can only be fully opened or completely closed, and the use status is limited, which affects the use effect.

Therefore, the traditional upward hinge still needs to be further improved.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an upturning door hinge with opening and closing assistance. It can increase the transmission bearing capacity, reduce deformation, improve structural stability and reliability, and at the same time, the flap door can be opened at a certain angle to hover, which has strong applicability and ensures the quality of the product.

The utility model purpose of the utility model is achieved in the following way: a kind of upturning door hinge with opening and closing assistance, including a door bracket fixedly installed with the door body, and a hinge seat fixedly installed with the cabinet body, wherein the hinge seat and The connection between the door brackets is hinged with a transmission assembly that drives the door body to open and close on the cabinet body. The transmission assembly includes a transmission connecting rod group, a rotating cam, and a spring. The center point shaft of the rotating cam is connected to the hinge seat. , the swing end of the rotating cam is hinged with the positioning end of the transmission link group, the driving end of the transmission link group is hinged with the door bracket, the positioning end of the spring is installed on the hinge seat, and the movable end of the spring is provided under the action of elasticity A bearing connected tangentially to the outer edge of the rotating cam, the point of tangency between the bearing and the outer edge of the rotating cam is below or above the line connecting the center point of the bearing and the rotating cam, and at the same time, a door closing torque or door opening that pushes the rotating cam to rotate is generated torque.

According to the above optimization, the hinge seat is provided with a swing seat, the swing seat shaft is connected to the hinge seat, the swing upper end of the swing seat is equipped with a bearing, and the swing lower end of the swing seat is connected with a spring.

According to the above optimization, the hinge seat is provided with an elastic force adjustment device for adjusting the spring force arm.

Optimized according to the above, the elastic force adjustment device includes an adjustment screw and an adjustment block, the adjustment screw is positioned and installed with a swing seat, the adjustment block is threaded on the adjustment screw, and one end of the spring is positioned and connected with the adjustment block.

According to the above optimization, the swing seat is provided with a limited sliding groove for adjusting the adjustment block to slide up and down.

According to the above optimization, the two ends of the spring are respectively fastened with a front connecting gusset and a rear connecting gusset, the front connecting gusset and the adjustment block are fixedly installed, and the rear connecting gusset is fixedly installed on the hinge seat.

According to the above optimization, the two sides of the rotating cam are respectively equipped with reinforcing cams for strengthening the bearing capacity, and the reinforcing cams are respectively slidably connected with the bearings along with the rotating cams.

According to the above optimization, the transmission link group is provided with a guide block for controlling the movement track of the door bracket, and the hinge seat is provided with a guide groove slidingly connected with the guide block.

Optimizing according to the above, the shape of the guide groove conforms to the movement track of the door bracket.

The utility model has the advantages of:

1) Under the tension of the spring, the bearing and the rotating cam are closely tangent, and when the tangent point between the bearing and the rotating cam is below the bearing and the rotating cam, a downward rotating closing torque can be generated , Push the rotary cam to turn down, so that the flap door has closing power to realize automatic door closing, labor-saving, easy to operate, good closing effect, avoid opening the door by misoperation, safe and reliable.

2) Under the elastic action of the spring, the bearing and the rotating cam are closely tangent, and when the tangent point between the bearing and the rotating cam is above the bearing and the rotating cam, an upward rotating door opening torque can be generated , push the rotary cam to rotate upwards, so that the flap door has door opening assistance. Due to the gravity of the door body, the door opening torque first overcomes the gravity, so that the door body hovers in the middle, which is easy to operate, adapts to the needs of use, and has strong applicability. During this period, increasing the rotation torque can realize automatic door opening, reduce load, save labor, facilitate operation, enhance the stability of use, and ensure the quality of the flap door.

3) Under the action of the elastic force adjustment device, the spring force arm can be adjusted only by adjusting the adjustment screw rod, so as to realize the adjustment of the door opening range and meet the user's requirements.

4) With the structure of the reinforced cam, the load-bearing performance of the rotating cam is strengthened, the transmission stability is improved, the probability of deformation is reduced, and the service life of the hinge is extended.

Description of drawings

Accompanying drawing 1 is the front view of the closed state of the preferred embodiment of the utility model.

Accompanying drawing 2 is the partial sectional view in the closed state of the preferred embodiment of the utility model.

Accompanying drawing 3 is the sectional view of the closed state of the preferred embodiment of the utility model.

Accompanying drawing 4 is the front view of the opening state of the preferred embodiment of the utility model.

Accompanying drawing 5 is the partial sectional view in the opening state of the preferred embodiment of the utility model.

Accompanying drawing 6 is the sectional view of the opening state of the preferred embodiment of the utility model.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

According to accompanying drawings 1 to 6, the utility model has the opening and closing power-assisted upward swing door hinge, which includes a door bracket 1 fixedly installed with the door body, and a hinge seat 2 fixedly installed with the cabinet body. Wherein, the connection between the hinge base 2 and the door bracket 1 is hinged with a transmission assembly for driving the door to open and close on the cabinet. The transmission assembly includes a transmission link group 3, a rotating cam 4, and a spring 5. The center point shaft of the rotating cam 4 is connected to the hinge base 2, the swing end of the rotating cam 4 is hinged with the positioning end of the transmission link group 3, and the driving end of the transmission link group 3 is hinged with the door bracket 1. The positioning end of the spring 5 is installed on the hinge base 2, and the movable end of the spring 5 is provided with a bearing 6 connected tangentially to the outer edge of the rotating cam 4 under elastic action. The tangent point 7 between the bearing 6 and the outer edge of the rotary cam 4 is below or above the line 8 connecting the center points of the bearing 6 and the rotary cam 4, and at the same time, a door closing torque or a door opening torque that promotes the rotation of the rotary cam 4 is generated.

That is, when the door body is turned down, under the pulling force of the spring 5, the bearing 6 is closely tangent to the rotating cam 4, and at the same time, the tangent point 7 between the bearing 6 and the rotating cam 4 appears between the bearing 6 and the rotating cam 4. Below, just can produce a closing torque that rotates downwards, pushes rotary cam 4 to rotate downwards, so that the flap door has closing assistance, realizes automatic door closing, as shown in Fig. 1 to Fig. 3. Labor-saving, convenient operation, good closing effect, avoid opening the door by misoperation, safe and reliable.

When the door body is turned up, under the elastic action of the spring 5, the bearing 6 is closely tangent to the rotating cam 4, and at the same time, the tangent point 7 between the bearing 6 and the rotating cam 4 appears above the bearing 6 and the rotating cam 4 , just can produce a door-opening torque that rotates upwards, promotes rotary cam 4 to rotate upwards, so that the flap door has door-opening assistance. Due to the gravity of the door body, the door opening torque first overcomes the gravity, so that the door body hovers in the middle, which is easy to operate, adapts to the needs of use, and has strong applicability. Then, increase the rotation torque to realize automatic door opening, as shown in Fig. 4 to Fig. 6 . Reduce load, save labor, easy to operate, enhance the use stability of the upper flap door, and ensure the use quality of the flap door.

Referring to Fig. 1 to Fig. 6, described hinge seat 2 is provided with swing seat 9, and swing seat 9 shaft is connected on hinge seat 2, and the swing upper end of swing seat 9 is equipped with bearing 6, and the swing lower end of swing seat 9 is connected with spring 5. The stability of the structural connection is strengthened to ensure that the bearing 6 is closely tangent to the rotating cam 4.

in. Described hinge seat 2 is provided with the elastic force adjusting device that adjusts spring 5 arm usefulness. The elastic adjustment device includes an adjustment screw 10 and an adjustment block 11. The adjustment screw 10 is positioned with a swing seat 9, the adjustment block 11 is threaded on the adjustment screw 10, and one end of the spring 5 is connected with the adjustment block 11 in positioning.

During this period, the swing seat 9 is provided with a limited slide groove 12 for adjusting the adjustment block 11 to slide up and down.

Under the effect of the elastic force adjusting device, when the door body is opened to the maximum position, only the adjustment block 11 can be rotated to adjust the force arm of the spring 5, so as to realize the adjustment of the door opening range and meet the user's requirements.

In addition, the two ends of the spring 5 are respectively fastened with a front connecting gusset 13 and a rear connecting gusset 14, the front connecting gusset 13 and the adjustment block 11 are fixedly installed, and the rear connecting gusset 14 is fixedly installed on the hinge seat 2 . The assembly is convenient, the structure stability is improved, and the reliability of operation is ensured.

1 to 6, the two sides of the rotating cam 4 are respectively equipped with reinforcing cams 15 for strengthening the bearing capacity, and the reinforcing cams 15 are respectively slidingly connected with the bearings 6 along with the rotating cam 4.

By adding the structure of the reinforced cam 15, the load-bearing performance of the rotating cam 4 is enhanced, the transmission stability is improved, the deformation probability is reduced, and the service life of the hinge is prolonged.

Referring to Fig. 1 to Fig. 6, the transmission link group 3 is provided with a guide block 16 for controlling the movement track of the door bracket 1, and the hinge seat 2 is provided with a guide groove 17 slidingly connected with the guide block 16. Moreover, the shape of the guide groove 17 conforms to the movement track of the door bracket 1 .

Under the cooperation of the guide block 16 and the guide groove 17, the motion trajectory of the door bracket 1 is effectively controlled, the guide is stable, the running carrying capacity is increased, the stability and smoothness of the hinge are improved, and the normal operation of the flap door is guaranteed.

The above-mentioned specific embodiments are only specific implementations with better effects of the utility model, and any structures that are the same or equivalent to the upturn door hinge with opening and closing assistance of the utility model are within the protection scope of the utility model.

Claims (9)

1. An upturning door hinge with opening and closing power assistance, comprising a door bracket (1) fixedly installed with the door body, and a hinge seat (2) fixedly installed with the cabinet body, characterized in that: the hinge seat (2) Between the connection with the door bracket (1), there is a transmission assembly for driving the door to open and close on the cabinet. The transmission assembly includes a transmission connecting rod group (3), a rotating cam (4), and a spring (5). The center point axis of the rotating cam (4) is connected to the hinge seat (2), the swing end of the rotating cam (4) is hinged with the positioning end of the transmission link group (3), and the driving force of the transmission link group (3) The end of the spring (5) is hinged with the door bracket (1), the positioning end of the spring (5) is installed on the hinge seat (2), and the movable end of the spring (5) is provided with the outer edge of the rotating cam (4) under the action of elasticity. Tangentially connected bearings (6), the tangent point (7) between the bearing (6) and the outer edge of the rotary cam (4) is below the line (8) connecting the center points of the bearing (6) and the rotary cam (4) Or above, the door-closing torque or door-opening torque that promotes the rotation of the rotary cam (4) is generated simultaneously. 2. The upward-turning door hinge with opening and closing assistance according to claim 1, characterized in that: the hinge seat (2) is provided with a swing seat (9), and the swing seat (9) is axially connected to the hinge seat (2) On, the swing upper end of swing seat (9) is equipped with bearing (6), and the swing lower end of swing seat (9) is connected with spring (5). 3. The upward-turning door hinge with opening and closing assistance according to claim 1 or 2, characterized in that: the hinge seat (2) is provided with an elastic force adjustment device for adjusting the force arm of the spring (5). 4. According to claim 3, the upward-turning door hinge with opening and closing assistance is characterized in that: the elastic force adjustment device includes an adjustment screw (10) and an adjustment block (11), and the adjustment screw (10) is positioned with a swing seat (9), the adjusting block (11) is threadedly connected on the adjusting screw rod (10), and one end of the spring (5) is positioned and connected with the adjusting block (11). 5 . The upward-turning door hinge with opening and closing assistance according to claim 4 , characterized in that: the swing seat ( 9 ) is provided with a limited sliding groove ( 12 ) for adjusting the adjustment block ( 11 ) to slide up and down. 6 . 6. According to claim 5, the upward flap hinge with opening and closing assistance is characterized in that: the two ends of the spring (5) are respectively fastened with a front connecting gusset (13) and a rear connecting gusset (14) , the front connecting gusset (13) is fixedly installed with the adjustment block (11), and the rear connecting gusset (14) is fixedly installed on the hinge seat (2). 7. According to claim 1, the opening and closing door hinge with power assist is characterized in that: the two sides of the rotating cam (4) are respectively equipped with reinforcing cams (15) for strengthening the bearing capacity, and the reinforcing cams (15 ) are respectively slidingly connected with the bearing (6) along with the rotating cam (4). 8. According to claim 1, the upward-turning door hinge with opening and closing assistance is characterized in that: the transmission link group (3) is provided with a guide block (16) for controlling the movement track of the door bracket (1), so that The hinge seat (2) is provided with a guide groove (17) slidingly connected with the guide block (16). 9. The upward-turning door hinge with opening and closing assistance according to claim 8, characterized in that: the shape of the guide groove (17) conforms to the movement track of the door bracket (1).