CN204715982U - a small hinge - Google Patents

Abstract

The utility model discloses a small hinge, including: a mounting frame, a swing arm and a movable component, the movable component includes: a spring installed in the mounting frame and a support frame connected to the spring, the support frame has a left-right symmetrical support plate, one end of the support plate connected to the swing arm is bent toward each other to form an extension surface, the free end of the extension surface extends away from the support plate and forms a clamping portion; one end of the support frame connected to the spring is relatively protruded outward to form an outward convex plane, and the plane is in smooth contact with the inner wall of the mounting frame; a lock buckle is also pivoted on the swing arm. The utility model is suitable for the installation of a pull-down door body, especially for small ovens, small steam ovens, microwave ovens and other small oven doors. The utility model is small in size, strong in function, and good in comprehensive performance. It has good sealing when installed on a small oven door, can stop automatically at all angles, and has a self-locking function. The quality and performance of small ovens, small steam ovens, and microwave ovens equipped with this type of hinge are greatly improved.

Description

a small hinge

Technical field:

The utility model relates to the technical field of hinges, in particular to a small hinge with small volume and easy installation.

Background technique:

A hinge, also known as a hinge, is a mechanical device used to connect two solid bodies and allow rotation between them. A hinge may consist of movable components or a foldable material. Hinges are often used in some kitchen electrical equipment, such as microwave ovens, ovens, etc. Small ovens, small steam ovens, microwave ovens and other small oven doors on the market, due to the small size of the oven door, the space left for the hinge installation is very large. It is narrow, and there is no hinge with good function and small size on the market. For this reason: small ovens, small steam ovens, microwave ovens and other small oven doors on the market can only use simple structures and single functions, which are not easy to disassemble. structure instead, and it has the following disadvantages:

1. The traditional hinge is inconvenient to disassemble and assemble, resulting in inconvenient cleaning;

2. The main body of the traditional hinge is fixed on the oven door, and the oven cannot stay at any angle when it is opened;

3. Traditional hinges basically do not have a self-locking function, and the sealing function of the oven is poor;

4. The traditional hinge is fixed on the oven door, and the opening and closing of the oven door does not feel good, and the noise is loud.

5. The main body of the hinge is fixed on the oven door. Because the thickness of the hinge limits the thickness design of the oven door, the oven

The overall thickness of the door affects the overall appearance;

In order to overcome the above problems, the utility model proposes a small hinge suitable for small oven doors such as ovens and microwave ovens.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a small hinge.

In order to solve the above technical problems, the utility model adopts the following technical solutions: a small hinge, including: a mounting frame, a swing arm hinged at the front end of the mounting frame and a movable assembly installed in the mounting frame, the swing arm passes through the first The pivot shaft is pivotally connected to the installation frame. The installation frame includes a left-right symmetrical base plate and a bottom plate connecting the base plate and the base plate. "Z" type; the movable assembly includes: a spring installed in the installation frame and a support frame connected to the spring. The extension surface, the free end of the extension surface extends away from the support plate and forms a clamping part; the end of the support frame connected to the spring protrudes outward to form a convex plane, and the plane is in smooth contact with the inner wall of the mounting frame; The swing arm is embedded in the clamping portion and is pivotally connected to the clamping portion through a pivot shaft, and a lock is also pivotally connected to the swing arm.

Further, in the above technical solution, a cavity for installation of movable components and swing arms is formed between the base plate and the bottom plate; a third pivot shaft is fixedly installed at one end of the mounting bracket, and one end of the spring is connected to the first pivot shaft. One pivot shaft, the other end is connected with the support frame.

Further, in the above technical solution, the top of the support plate is provided with the plane, and an outwardly protruding arc shape is formed between the plane and the support plate, and the two support plates are connected by a connecting plate.

Furthermore, in the above technical solution, the support plate, the extension surface and the clamping part are integrally connected and stamped into a "Z" shape.

Further, in the above technical solution, the above-mentioned base plate is provided with a strip-shaped groove, and the support frame is provided with a perforation on its convex plane, and a second pivot shaft is integrated in the strip-shaped groove and the perforation hole. The other end of the spring is connected to the second pivot shaft.

Further, in the above technical solution, a torsion spring part and a rotating part are pivotally connected to the support frame, and the torsion spring part includes: a left torsion spring and a right torsion spring; One of the free ends connects to form a connection part, which is in the shape of a "ji", and the connection part is connected to the spring.

Furthermore, in the above technical solution, the swing arm is stamped integrally to form a single-piece structure.

Furthermore, in the above technical solution, grooves are provided at the middle positions of the second pivot shaft and the third pivot shaft, and both ends of the spring are embedded in the grooves, so that the movable component is always positioned at the center of the mounting frame. centre position.

After adopting the above-mentioned technical scheme, the utility model has the following beneficial effects compared with the prior art: currently on the market for small ovens, small steam ovens, microwave ovens and other small oven doors, because the oven doors are small in size, the installation space left for the hinges is very small. It is narrow, and there is no hinge with good function and small size on the market. For this reason: small ovens, small steam ovens, microwave ovens and other small oven doors on the market can only use simple structures and single functions, which is not easy to disassemble the mechanical structure. Instead, the utility model is suitable for the installation of pull-down doors, especially for small ovens, small steam ovens, microwave ovens and other small oven doors. The utility model is small in size, strong in function, and has good comprehensive performance. It has good performance, can stop automatically at all angles, and has a self-locking function. The small oven and small steam oven equipped with this type of hinge greatly improve the quality and performance of the microwave oven.

Description of drawings:

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

Fig. 2 is the front view of the utility model;

Fig. 3 is a three-dimensional exploded view of the utility model.

Explanation of reference signs:

1 Mounting frame 11, 12 Base plate 13 Bottom plate

2 Swing arm 21 Lock

3 Movable components 31 Spring 32 Support frame

321 Support plate 3211 Extension surface 322 Clamping part

323 plane 33 torsion spring part 331 left torsion spring

332 Right torsion spring 333 Connecting part 34 Rotating part

40 First pivot axis 41 Second pivot axis 42 Third pivot axis

Detailed ways:

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

As shown in FIGS. 1-3 , a small hinge includes: a mounting frame 1 , a swing arm 2 hinged to the front end of the mounting frame 1 , and a movable component 3 installed in the mounting frame 1 .

The mounting frame includes: the mounting frame 1 includes left and right symmetrical base plates 11, 12 and a base plate 13 connecting the base plates 11, 12, and a cavity for the installation of the movable component 3 and the swing arm 2 is formed between the base plates 11, 12 and the base plate 13, The ends of the substrates 11 and 12 are bent and extended toward each other, so that the ends of the substrates 11 and 12 are in a "Z" shape; the ends of the substrates 11 and 12 are narrowed inward, and the ends of the mounting frame 1 are pressed into a "Z" shape to shrink The internal space minimizes the hidden danger of the beating of the hinge's rotating reference axis, and a rotating reference hole is opened at the end of the mounting frame 1. The rotating reference hole adopts flanging technology, which can greatly improve the strength.

The swing arm 2 is connected to the end of the mounting frame 1 through the first pivot shaft 40 and can swing around the first pivot shaft 40. The swing arm 2 is integrally punched to form a single-piece structure with stable performance.

The movable assembly 3 includes: a spring 31 and a support frame 32, the support frame 32 has a symmetrical support plate 321, and the left and right support plates 321 are connected by a connecting plate 323; the support plate 321 is connected to the swing arm 2 One end is bent toward each other to form an extension surface 3211, the extension surface 3211 is an arc-shaped surface, the free end of the extension surface 3211 extends away from the support plate 321 and forms a clamping portion 322, and the support frame 32 is opposite to the end connected to the spring 31 Protrude outwards to form a convex plane 323, the support frame 32 is installed in the mounting frame 1, the top of the support plate 321 is provided with a plane 323, and an outwardly protruding arc shape is formed between the plane 323 and the support plate 321, and the two The supporting plates 321 are connected by connecting plates 324 . The plane 323 is in smooth contact with the inner wall of the mounting frame 1, and the support frame 32 has a convex shape outwards, against the inner wall of the mounting frame 1, which can improve the overall performance of the hinge, and the two planes 323 are in smooth contact with the inner wall of the mounting frame 1, so that the support The frame 32 is always kept in the center relative to the mounting frame 1, thereby improving the stability of the hinge. The support plate 321, the extension surface and the clamping part 322 are integrally stamped and formed, and the bottom of the support plate 321 is inwardly shaped in a circular arc "Z" shape, which can improve the rigidity and strength of the support frame 32 to the best state, and can The performance and life of the small hinge are greatly improved. A torsion spring part 33 and a rotating part 34 are pivotally connected to the support frame 32. The torsion spring part 33 includes: a left torsion spring 331 and a right torsion spring 332, and one of the free ends of the left torsion spring 331 and the right torsion spring 332 is connected. A connection portion 333 is formed, the connection portion 333 is in the shape of a “Ji” and the connection portion 333 is connected to the spring 31 . The torsion spring portion 33 is limited in the mounting bracket 1 .

The spring 31, the support frame 32 and the swing arm 2 are sequentially connected and installed from the front end to the end of the mounting frame 1. The top end of the mounting frame 1 is fixedly provided with a third pivot shaft 42 connected to the left and right base plates 11, 12, One end of the spring 31 is connected to the third pivot shaft. The central part of the base plate 11, 12 is provided with a bar-shaped groove, and the protruding plane 323 of the support frame 32 is provided with a perforation. A second pivot shaft 41 is integrally installed in the bar-shaped groove and the perforated hole. The other end of the third pivot shaft 42 is connected to the second pivot shaft 41 . Grooves are formed at the middle positions of the second pivot shaft 41 and the third pivot shaft 42 , and both ends of the spring 31 are embedded in the grooves, so that the movable component 3 is always located at the middle position of the installation frame 1 . The torsion spring portion 33 and the rotating portion 34 are clamped in the supporting frame 32 , and a pivot shaft is integrated on the supporting frame 32 , the torsion spring portion 33 and the rotating portion 34 .

The swing arm 2 is embedded in the clamping portion 322 and is pivotally connected to the clamping portion 322 through a pivot shaft. There is also a lock 21 pivotally connected to the swing arm 2, through which the lock 21 realizes the self-locking of the hinge. The lock catch 21 resists the hinge and counter-supports the fixed support frame 32, so that the hinge is installed stably. A contact surface 22 and a guide surface 23 are provided on the end of the swing arm 2 mating with the rotating portion 34 .

The use principle of the present utility model is as follows:

At the initial position, the swing arm 2 is substantially perpendicular to the installation frame 1, and the guide surface 23 and the rotating part 34 on the swing arm 2, at this time, neither the spring 31 nor the torsion spring 33 is elastically deformed. Apply force to make the swing arm 2 rotate, and the rotating part 34 rotates along the guide surface 23, and rotates until it is away from the guide surface 23 and conflicts with the contact surface 22, and continues to swing the swing arm 2 outwards until it is substantially parallel to the mounting frame 1. During the swing process, the swing of the swing arm 2 makes the rotating part 34 rotate relative to the guide surface 23, the swing of the swing arm 2 drives the support frame 32 to move, the second pivot shaft moves with the support frame 32, and the torsion spring 33 and the spring 31 are deformed , after the rotation is completed, the contact surface 22 of the swing arm 2 is in contact with the rotating portion 34, and due to the conflict between the two, the restoring force of the spring 33 is not enough to reset the swing arm 2 in one step. Applying force pushes the swing arm 2 to reset, and the swing arm 2 , the support frame 32 , and the second pivot shaft reset under the restoring force of the spring 31 .

The utility model is applied to the oven. The mounting frame 1 is installed on the main body of the oven, and the swing arm is installed on the oven door. When the oven door is opened, the swing arm 2 swings outwards, and when it is closed, it can be closed with a little force.

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 (8)

1. a small-sized hinge, comprise: an installing rack (1), the swing arm (2) being articulated with installing rack (1) front end and the movable component (3) be installed in installing rack (1), swing arm (2) is articulated on installing rack (1) by the first drive-connecting shaft (40), it is characterized in that:

Described installing rack (1) comprises the base plate (13) of symmetrical substrate (11,12) and connection substrate (11,12), substrate (11,12) bends in opposite directions in the one end connected with swing arm (2) and extends, and makes the end of substrate (11,12) in " Z " type; Described movable component (3) comprising: the bracing frame (32) being installed on the spring (31) in installing rack (1) and being connected with spring (31), bracing frame (32) has symmetrical gripper shoe (321), one end that gripper shoe (321) connects with swing arm (2) is bent to form an extended surface (3211) in opposite directions, and the free end of extended surface (3211) extends to the direction away from gripper shoe (321) and forms a clamping part (322); The relative outer lug in one end that bracing frame (32) and spring (31) connect forms the plane (323) of evagination, and this plane (323) contacts with the interior walls be smooth of installing rack (1); Described swing arm (2) to embed in clamping part (322) and by drive-connecting shaft and clamping part (322) pivot joint, is also articulated with a snap close (21) in swing arm (2).

2. the small-sized hinge of one according to claim 1, is characterized in that: form the cavity installed for movable component (3) and swing arm (2) between described substrate (11,12) and base plate (13); Described installing rack (1) one end is installed with one the 3rd drive-connecting shaft (42), and one end of spring (31) is connected on the first drive-connecting shaft (42), and the other end is connected with bracing frame (32).

3. the small-sized hinge of one according to claim 1, it is characterized in that: described gripper shoe (321) top is provided with described plane (323), be formed with outwardly circular shape between plane (323) and gripper shoe (321), and connected by junction plate (324) between two gripper shoes (321).

4. the small-sized hinge of one according to claim 1, is characterized in that: described gripper shoe (321), between extended surface (3211) with clamping part (321) one is connected and punching press be " Z " shape.

5. the small-sized hinge of one according to claim 2, it is characterized in that: described substrate (11,12) offers bar-shaped trough, the plane (323) of bracing frame (32) its evagination offers perforation, one second drive-connecting shaft (41) is integrally arranged in bar-shaped trough and perforation, and the other end of spring (31) is connected on the second drive-connecting shaft (41).

6. the small-sized hinge of one according to claim 1, it is characterized in that: described bracing frame (32) is articulated with a torsion spring portion (33) and rotation section (34), described torsion spring portion (33) comprising: left torsion spring (331) and right torsion spring (332), a wherein free end on left torsion spring (331) and right torsion spring (332) connects and forms a junction (333), this connecting portion (333) is in " several " font, and connecting portion (333) is connected to spring (31).

7. the small-sized hinge of one according to claim 1, is characterized in that: described swing arm (2) integrated punching is one-piece construction.

8. the small-sized hinge of one according to claim 5, it is characterized in that: the centre position of described the second drive-connecting shaft (41) and the 3rd drive-connecting shaft (42) all offers groove, the two ends of spring (31) all embed in groove, make movable component (3) be positioned at the centre position of installing rack (1) all the time.