CN218815849U - A kind of opening-assisting force damping hinge assembly - Google Patents

Abstract

The utility model discloses an opening aiding force damping hinge assembly, which comprises a lower hinge and an upper hinge hingedly installed with the lower hinge, and the inner hole of the lower hinge is sequentially arranged from top to bottom. A rotatable shaft, a linearly slidable axial cam, a pressure spring, a linear damper and a rear cover are provided. The shaft at the upper end of the shaft passes through the upper end of the lower hinge and is embedded and fixed with the upper hinge, so that the upper hinge Hinged with the lower hinge; the spiral convex teeth formed at the lower end of the rotating shaft are docked with the helical tooth grooves at the upper end of the axial cam, and are used to convert the rotary motion of the rotating shaft into the linear sliding of the axial cam; the rear cover is fixed on the lower The lower end of the hinge, the upper and lower ends of the pressure spring are respectively in contact with the lower end surface of the axial cam and the upper end surface of the rear cover, and the upper and lower ends of the linear damper are respectively in contact with the lower end surface of the axial cam and the upper end surface of the rear cover; the compression spring Set on the periphery of the linear damper.

Description

A kind of opening-assisting force damping hinge assembly

Technical field:

The utility model relates to the technical field of hinge products, in particular to an opening-assisting force damping hinge assembly.

Background technique:

Hinges, also known as hinges, are often composed of two folds, which are parts that connect two parts of an object and enable them to move. Ordinary hinges are used for cabinet doors, windows, doors, etc. The existing hinge has a simple structure, and the opening angle cannot be positioned, and in the closing process, the hinge does not have the function of damping, and the phenomenon of impact is prone to occur.

The Chinese utility model patent No. 201921280022.2 discloses a damping hinge, which includes a first hinge leaf and a second hinge leaf, the middle part of the first hinge leaf is provided with a first connecting part, and the second The two ends of the hinge blade are respectively provided with a second connection part and a third connection part, and a torsion spring is installed inside the first connection part, and an adjustment rotation shaft is arranged inside the second connection part, and one end of the adjustment rotation shaft is connected to the third connection part. One end of the torsion spring is clamped, and a fixed rotating shaft is sleeved in the third connecting part, and one end of the fixed rotating shaft is engaged with the other end of the torsion spring, and the other end of the fixed rotating shaft is connected to the end of the damping cylinder core plugging and fixing, and the damping cylinder core is installed in the damping cylinder shell in the third connecting part. The above-mentioned damping hinge can position the opening angle of the hinge. When the hinge is closed, the torsion spring is used to make the hinge automatically close. At the same time, the damping cylinder core and the damping cylinder shell are used to produce a damping effect, so that the hinge is slowly closed. convenient.

However, when the first hinge blade and the second hinge blade are opened to each other, the torsion spring is used to store energy, and the torsion force (circumferential force) of the torsion spring is used to make the hinge automatically close when closing, but the torsion spring carries out the energy storage process. In the middle, it needs to be driven by a large external force, resulting in unsmooth operation, that is, the opening is not smooth enough; in addition, when closing, the torque of the torsion spring is too large, and a large damping force needs to be generated by the damping cylinder core and the damping cylinder shell to achieve buffering , to avoid the phenomenon of impact. In addition, the damping hinge cannot provide opening assist force, and the opening of cabinet doors and the like is not convenient enough.

In view of this, the inventor proposes the following technical solutions.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide an opening-assisting force damping hinge assembly.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical scheme: the opening-assisting force damping hinge assembly includes a lower hinge and an upper hinge hingedly installed with the lower hinge, and the inner hole of the lower hinge is formed by the upper A rotatable rotating shaft, a linearly slidable axial cam, a compression spring, a linear damper and a rear cover are sequentially threaded from bottom to bottom. The upper hinge and the lower hinge are hinged; the spiral convex teeth formed at the lower end of the rotating shaft are docked with the spiral tooth grooves at the upper end of the axial cam, and are used to convert the rotary motion of the rotating shaft into linear sliding of the axial cam; the rear cover is fixed At the lower end of the lower hinge, the upper and lower ends of the compression spring are respectively in contact with the lower end surface of the axial cam and the upper end surface of the rear cover, and the upper and lower ends of the linear damper are respectively in contact with the lower end surface of the axial cam and the upper end surface of the rear cover; The compression spring is sleeved on the periphery of the linear damper.

Furthermore, in the above technical solution, the surfaces of the upper hinge and the lower hinge are respectively provided with a first anti-rotation part and a second anti-rotation part for limiting the rotation angle.

Further, in the above technical solution, the outer side of the lower hinge has a lower cylinder, the lower cylinder has the inner hole, and the upper end of the lower cylinder has a mounting position; the upper outer end of the upper hinge has an upper A cylinder, the upper cylinder is installed in the installation position, and the shaft body at the upper end of the rotating shaft passes through the upper end of the lower cylinder body to protrude outside the upper end of the lower cylinder body, and the shaft body is embedded and fixed with the upper cylinder body.

Furthermore, in the above technical solution, a protruding ring is provided at the upper end of the lower cylinder; an annular groove is provided at the opening of the lower end of the upper cylinder, and the protruding ring is embedded in the annular groove.

Furthermore, in the above technical solution, the shaft body is non-circular; the upper cylinder has a non-circular positioning groove, and the shaft body is embedded and fixed in the non-circular positioning groove.

Furthermore, in the above technical solution, the linear damper includes a damping cylinder and a damping rod, the upper end of the damping cylinder is in contact with the lower end surface of the axial cam, and the lower end surface of the damping rod is in contact with the upper end surface of the rear cover.

Further, in the above technical solution, a small chute and a large chute are provided at the wall of the inner hole of the lower hinge; a small slider and a large slider are formed on the outside of the rear cover, and the small slider and the The large sliders are respectively embedded in the small chute and the large chute, and pass through the first transverse hole at the lower end of the lower hinge and the second transverse hole of the rear cover through the pin shaft to lock the rear cover at the lower end of the lower hinge.

Furthermore, in the above technical solution, a large sliding part is formed on the periphery of the axial cam, and the large sliding part is embedded in the large sliding groove and can slide relative to the large sliding groove.

Furthermore, in the above technical solution, both the upper end surface and the lower end surface of the compression spring are set as planes.

After adopting the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: when the utility model is in the relatively closed state of the upper hinge and the lower hinge, the rotating shaft rotates, and the spiral convex teeth formed at the lower end of the rotating shaft and the shaft Cooperating with the helical tooth groove at the upper end of the cam, the rotational moment of the rotating shaft is converted into the linear force of the axial cam, thereby converting the rotational motion of the rotating shaft into a linear sliding of the axial cam, and then pushing the axial cam toward the rear cover in a straight line Sliding, at this time, the elastic force of the compression spring and the damping force generated by the linear damper absorb the linear force of the axial cam, thereby maintaining a force balance, and giving a reverse force to the rotating shaft in the opposite direction, so as to achieve the damping effect. Since the two different forces of the elastic force of the compression spring and the damping force produced by the linear damper are used to absorb the linear force of the axial cam, a better damping effect can be achieved. Products such as windows and doors play an extremely effective buffering role, effectively avoiding noise caused by product collisions, and at the same time better protecting products. When it is necessary to reopen the cabinet doors, windows, doors and other products equipped with the utility model, when the cabinet doors, windows, doors and other products installed with the utility model are lifted up by hand, the compressed stage spring will reset The outward push is generated to form a linear force, and the linear force is used to push the axial cam to move linearly outward, and the spiral tooth groove at the upper end of the axial cam is matched with the spiral convex tooth formed at the lower end of the rotating shaft. The linear force is the rotational force. Drive the rotating shaft to rotate a small angle to achieve the purpose of forming an opening force, so that it can drive cabinet doors, windows, doors and other products to open a certain angle, effectively reduce the reverse damping when opening, and make opening easier; Products such as windows and doors will have a damping effect at any angle when opened, and there will be no phenomenon of pinching hands, so it is more convenient and safe to use. In addition, when the cabinet doors, windows, doors and other products installed with the utility model are opened , the upper hinge and the lower hinge are not hindered by the torsion force of the torsion spring as described in the background technology, and they do not require a large force to open, and the operation is more convenient and smooth.

Description of drawings:

Fig. 1 is a perspective view of the utility model;

Fig. 2 is a perspective view of another viewing angle of the utility model;

Fig. 3 is an exploded view of the utility model;

Fig. 4 is a sectional view of the utility model;

Fig. 5 is a perspective view of the upper hinge in the utility model;

Fig. 6 is a perspective view of the lower hinge of the utility model;

Fig. 7 is an internal structural diagram of the utility model.

Detailed ways:

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

As shown in Figures 1-7, it is an opening assist damping hinge assembly, which includes a lower hinge 1 and an upper hinge 2 hingedly installed with the lower hinge 1, which is used for cabinet doors, windows, doors and the like.

In the inner hole 101 of the lower hinge 1, a rotatable shaft 7, a linearly slidable axial cam 3, a compression spring 4, a linear damper 5 and a rear cover 6 are sequentially pierced from top to bottom. The shaft body 71 at the upper end passes through the upper end of the lower hinge 1 and is embedded and fixed with the upper hinge 2, so that the upper hinge 2 and the lower hinge 1 are hinged; The spiral tooth groove 31 is docked, and is used to convert the rotary motion of the rotating shaft 7 into the linear sliding of the axial cam 3; the rear cover 6 is fixed on the lower end of the lower hinge 1, and the upper and lower ends of the compression spring 4 are respectively connected with the shaft The lower end surface of the cam 3 is in contact with the upper end surface of the back cover 6, and the upper and lower ends of the linear damper 5 are respectively in contact with the lower end surface of the axial cam 3 and the upper end surface of the rear cover 6; the compression spring 4 is sleeved on the periphery of the linear damper 5. In the utility model, when the upper hinge 2 and the lower hinge 1 are relatively closed, the rotating shaft 7 rotates, and the spiral tooth 72 formed at the lower end of the rotating shaft 7 cooperates with the helical tooth groove 31 at the upper end of the axial cam 3 to make the rotating shaft 7 The rotational torque is converted into the linear force of the axial cam 3, thereby converting the rotational motion of the rotating shaft 7 into a linear sliding of the axial cam 3, and then pushing the axial cam 3 to slide linearly in the direction of the rear cover 6. At this time, the pressure spring 4 and the damping force generated by the linear damper 5 to absorb the linear force of the axial cam 3, thereby maintaining a force balance, and giving a reverse force to the rotating shaft 3 to achieve the damping effect. The elastic force of the stage clip 4 and the damping force produced by the linear damper 5 absorb the linear force of the axial cam 3, which can achieve a better damping effect. Products such as windows and doors play an extremely effective buffering role, effectively avoiding noise caused by product collisions, and at the same time better protecting products. When it is necessary to reopen products such as the cabinet doors, windows, and doors that are installed with the utility model, when the products such as the cabinet doors, windows, and doors that are installed with the utility model are lifted upwards by hand, the compressed stage spring 4 will Resetting generates an outward push to form a linear force, through which the axial cam 3 is pushed to move outward in a straight line, and the helical tooth groove 31 at the upper end of the axial cam 3 cooperates with the helical convex tooth 72 formed at the lower end of the rotating shaft 7 to form a straight line The force is a rotational force to drive the rotating shaft 7 to rotate at a small angle to achieve the purpose of forming an opening assisting force, thereby driving cabinet doors, windows, doors and other products to open at a certain angle, effectively reducing the reverse damping when opening, and making opening more labor-saving. Easy; however, when the cabinet door, window, door and other products are opened at any angle, a damping effect will be generated, and there will be no phenomenon of pinching hands, so it is more convenient and safe to use. In addition, when the cabinet door of the utility model, When products such as windows and doors are opened, the upper hinge 2 and the lower hinge 1 are not hindered by the torsion force of the torsion spring as described in the background art, and the opening does not require a large force, and the operation is more convenient and smooth.

A first anti-rotation part 21 and a second anti-rotation part 11 for limiting the rotation angle are respectively provided on the surface of the upper hinge 2 opposite to the lower hinge 1 . After the upper hinge 2 and the lower hinge 1 rotate relative to each other, when the first anti-rotation part 21 and the second anti-rotation part 11 contact, the upper hinge 2 and the lower hinge 1 cannot rotate, so as to achieve the effect of anti-rotation , which can prevent the product from opening too much.

The outer side of the lower hinge 1 has a lower cylinder 12, the lower cylinder 12 has the inner hole 101, and the upper end of the lower cylinder 12 has a mounting position 13; the outer upper end of the upper hinge 2 has an upper cylinder 22. The upper cylinder 22 is installed in the installation position 13, and the shaft 71 at the upper end of the rotating shaft 7 passes through the upper end of the lower cylinder 12 to protrude outside the upper end of the lower cylinder 12, and the shaft 71 is in contact with the upper The cylinder body 22 is inlaid and fixed, and its assembly structure is stable, which ensures that the upper hinge 2 and the lower hinge 1 are hinged stably, and ensures that the assembly structure of the upper hinge 2 and the lower hinge 1 is more complete and the appearance is more beautiful.

The upper end of the lower cylinder 12 is provided with a protruding ring 121; the opening of the lower end of the upper cylinder 22 is provided with a ring groove 221, and the protruding ring 121 is embedded in the ring groove 221, thereby realizing a rotatable connection and further improving the articulation. The stability of the structure makes the rotation of the upper hinge 2 and the lower hinge 1 more stable.

The shaft 71 is non-circular; the upper cylinder 22 has a non-circular positioning groove 222 , and the shaft 71 is embedded and fixed in the non-circular positioning groove 222 .

The linear damper 5 includes a damping cylinder 51 and a damping rod 52 , the upper end of the damping cylinder 51 is in contact with the lower end of the axial cam 3 , and the lower end of the damping rod 52 is in contact with the upper end of the rear cover 6 .

The inner hole 101 of the lower hinge 1 is provided with a small chute 102 and a large chute 103; the outside of the rear cover 6 is formed with a small slider 61 and a large slider 62, the small slider 61 and the large slider The slider 62 is embedded in the small chute 102 and the large chute 103 respectively, and passes through the first transverse hole 104 at the lower end of the lower hinge 1 and the second transverse hole 63 of the rear cover 6 through the pin shaft 64 to lock the rear cover 6 At the lower end of the lower hinge 1.

A large sliding portion 32 is formed on the periphery of the axial cam 3 , and the large sliding portion 32 is embedded in the large chute 103 and can slide relative to the large chute 103 .

Both the upper end surface and the lower end surface of the compression spring 4 are set as planes.

In summary, when the upper hinge 2 and the lower hinge 1 of the utility model are relatively closed, the rotating shaft 7 rotates, and the spiral tooth 72 formed at the lower end of the rotating shaft 7 cooperates with the helical tooth groove 31 at the upper end of the axial cam 3 , converting the rotational moment of the shaft 7 into a linear force of the axial cam 3, thereby converting the rotational motion of the shaft 7 into a linear sliding of the axial cam 3, and then pushing the axial cam 3 to slide linearly in the direction of the rear cover 6, At this time, the elastic force of the compression spring 4 and the damping force generated by the linear damper 5 absorb the linear force of the axial cam 3, thereby maintaining a force balance, and reversely give the rotating shaft 3 a reverse force, so as to achieve the effect of damping function, since the elastic force of the compression spring 4 and the damping force generated by the linear damper 5 are used to absorb the linear force of the axial cam 3, it can achieve a better damping effect, which is practical for installation. The new cabinet doors, windows, doors and other products play an extremely effective buffering role, effectively avoiding noise caused by product collisions, and at the same time can better protect products. When it is necessary to reopen products such as the cabinet doors, windows, and doors that are installed with the utility model, when the products such as the cabinet doors, windows, and doors that are installed with the utility model are lifted upwards by hand, the compressed stage spring 4 will Resetting generates an outward push to form a linear force, through which the axial cam 3 is pushed to move outward in a straight line, and the helical tooth groove 31 at the upper end of the axial cam 3 cooperates with the helical convex tooth 72 formed at the lower end of the rotating shaft 7 to form a straight line The force is a rotational force to drive the rotating shaft 7 to rotate at a small angle to achieve the purpose of forming an opening assisting force, thereby driving cabinet doors, windows, doors and other products to open at a certain angle, effectively reducing the reverse damping when opening, and making opening more labor-saving. Easy; however, when the cabinet door, window, door and other products are opened at any angle, a damping effect will be generated, and there will be no phenomenon of pinching hands, so it is more convenient and safe to use. In addition, when the cabinet door of the utility model, When products such as windows and doors are opened, the upper hinge 2 and the lower hinge 1 are not hindered by the torsion force of the torsion spring as described in the background art, and the opening does not require a large force, and the operation is more convenient and smooth.

Of course, the above descriptions are only specific embodiments of the utility model, and are not intended to limit the implementation scope of the utility model. Should be included in the utility model patent scope.

Claims (9)

1. The utility model provides an assist power of opening and damp hinge subassembly, its includes lower hinge (1) and with lower hinge (1) articulated installation last hinge (2), its characterized in that:

a rotatable rotating shaft (7), an axial cam (3) capable of sliding linearly, a pressure spring (4), a linear damper (5) and a rear cover (6) are sequentially arranged in an inner hole (101) of the lower hinge (1) in a penetrating manner from top to bottom, a shaft body (71) at the upper end of the rotating shaft (7) penetrates through the upper end of the lower hinge (1) and is fixedly embedded with the upper hinge (2), so that the upper hinge (2) is hinged with the lower hinge (1); the spiral convex teeth (72) formed at the lower end of the rotating shaft (7) are butted with the spiral tooth grooves (31) at the upper end of the axial cam (3) and are used for converting the rotary motion of the rotating shaft (7) into the linear sliding of the axial cam (3); the rear cover (6) is fixed at the lower end of the lower hinge (1), the upper end and the lower end of the pressure spring (4) are respectively contacted with the lower end surface of the axial cam (3) and the upper end surface of the rear cover (6), and the upper end and the lower end of the linear damper (5) are respectively contacted with the lower end surface of the axial cam (3) and the upper end surface of the rear cover (6); the compression spring (4) is sleeved on the periphery of the linear damper (5).

2. The opening-assist damping hinge assembly of claim 1, wherein: and the surfaces of the upper hinge (2) opposite to the lower hinge (1) are respectively provided with a first rotation stopping part (21) and a second rotation stopping part (11) for limiting the rotation angle.

3. The opening-assist damping hinge assembly of claim 2, wherein: a lower cylinder (12) is arranged on the outer side of the lower hinge (1), the lower cylinder (12) is provided with the inner hole (101), and the upper end of the lower cylinder (12) is provided with an installation position (13); the upper end of the outer side of the upper hinge (2) is provided with an upper cylinder body (22), the upper cylinder body (22) is installed in the installation position (13), a shaft body (71) at the upper end of the rotating shaft (7) penetrates through the upper end of the lower cylinder body (12) to extend out of the upper end of the lower cylinder body (12), and the shaft body (71) and the upper cylinder body (22) are embedded and fixed.

4. The opening-assist damping hinge assembly of claim 3, wherein: a convex ring (121) is arranged at the upper end of the lower cylinder body (12); an annular groove (221) is formed in the opening of the lower end of the upper barrel (22), and the convex ring (121) is embedded into the annular groove (221).

5. The opening-assist damping hinge assembly of claim 3, wherein: the shaft body (71) is non-circular; the upper cylinder (22) is provided with a non-circular positioning groove (222), and the shaft body (71) is embedded and fixed in the non-circular positioning groove (222).

6. The opening-assist damping hinge assembly as claimed in any one of claims 1 to 5, wherein: the linear damper (5) comprises a damping cylinder body (51) and a damping rod (52), the upper end of the damping cylinder body (51) is in contact with the lower end face of the axial cam (3), and the lower end face of the damping rod (52) is in contact with the upper end face of the rear cover (6).

7. A split-assist damping hinge assembly as claimed in any one of claims 1 to 5, wherein: a small sliding groove (102) and a large sliding groove (103) are formed in the hole wall of an inner hole (101) of the lower hinge (1); the rear cover (6) is externally molded with a small sliding block (61) and a large sliding block (62), the small sliding block (61) and the large sliding block (62) are respectively embedded into a small sliding groove (102) and a large sliding groove (103), and the small sliding block and the large sliding block pass through a first transverse hole (104) at the lower end of the lower hinge (1) and a second transverse hole (63) of the rear cover (6) through a pin shaft (64) so as to lock the rear cover (6) at the lower end of the lower hinge (1).

8. The opening-assist damping hinge assembly of claim 7, wherein: the periphery of the axial cam (3) is formed with a large sliding part (32), and the large sliding part (32) is embedded in the large sliding groove (103) and can slide relative to the large sliding groove (103).

9. The opening-assist damping hinge assembly as claimed in any one of claims 1 to 5, wherein: the upper end face and the lower end face of the pressure spring (4) are both arranged to be planes.

Images