Oven hinge

Abstract

The utility model relates to the technical field of oven hinges, in particular to an oven hinge which comprises a mounting arm, a connecting base is rotatably connected to the surface of the mounting arm, a connecting arm is rotatably connected to the surface of the connecting base, a movable rod is slidably connected to the surface of the mounting arm, and the movable rod is rotatably connected to the surface of the connecting arm. The end, away from the connecting base, of the connecting arm is rotationally connected to the surface of the movable rod, a hook on the surface of the movable rod is connected with a spring, and an adjusting mechanism is arranged on the surface of the mounting arm. The rotary knob is rotated to drive the lead screw to rotate on the surface of the fixing block, the lead screw rotates to drive the square nut to slide on the surface of the mounting arm, the square nut drives the adjusting rod to slide at the bottom of the mounting arm, the adjusting rod improves the elasticity of the spring in the using process through stretching, and when the elasticity of the spring is lowered, the spring is not prone to falling. The spring drives the connecting base to rotate to the original position through the movable rod and the connecting arm, and then the oven door is driven to be closed to the original position.

Description

TECHNICAL FIELD

[0001] The utility model relates to oven hinge technical field, concretely is a kind of oven hinge. BACKGROUND

[0002] Oven hinge is the key mechanical component for connecting oven body and door in oven, it allows door to rotate open and close within a certain range. This hinge is usually designed to bear a certain weight of oven door, and ensure that it can still work stably in high temperature environment.

[0003] The existing oven hinge resets oven door by spring, but the spring inside the existing oven hinge decreases elasticity after long-term use, causing oven door to fail to restore to original position after closing. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of oven hinge to solve the problem that the spring inside the existing oven hinge decreases elasticity after long-term use in the above background art, causing oven door to fail to restore to original position after closing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme, a kind of oven hinge: including installation arm, the surface of the installation arm is rotatably connected with connecting base, the surface of the connecting base is rotatably connected with connecting arm, the surface of the installation arm is slidably connected with movable rod, the end of the connecting arm away from the connecting base is rotatably connected on the surface of movable rod, the surface of the movable rod is hook-connected with spring, the surface of the installation arm is provided with adjusting mechanism, the adjusting mechanism includes fixed block, the fixed block is fixedly connected on the surface of installation arm, the surface of the fixed block is fixedly connected with screw rod, the surface of the screw rod is fixedly connected with knob, the surface of the screw rod is threadedly connected with square nut, the surface of the square nut is fixedly connected with adjusting rod, the end of the spring away from the movable rod is hook-connected on the surface of adjusting rod.

[0006] Preferably, the bottom of the installation arm is provided with a buffer mechanism, the buffer mechanism includes an installation frame, the installation frame is fixedly connected to the bottom of the installation arm, the bottom of the installation frame is inserted with an installation plate, the surface of the installation plate is threadedly connected with a limiting bolt, the surface of the limiting bolt is fixedly connected with an elastic buffer pad.

[0007] Preferably, two groups of guide holes are formed on the surface of the installation arm, the movable rod is slidably connected in one group of guide holes, and the adjusting rod is slidably connected in the other group of guide holes.

[0008] Preferably, the fixed block is provided with two groups, the screw rod is driven to rotate by the knob, and the screw rod drives the square nut to slide on the surface of the installation arm by rotation.

[0009] Preferably, the square nut drives the adjusting rod to slide on the guide hole of the mounting arm, and the elastic force of the spring acts on the connecting base through the movable rod and the connecting arm.

[0010] Preferably, the bottom of the mounting frame is provided with a rectangular groove, the mounting plate is inserted into the rectangular groove of the mounting frame, a circular hole is formed in the rectangular groove of the mounting frame, a threaded groove is formed in the surface of the mounting plate, and the limiting bolt is screwed through the circular hole of the mounting frame and the threaded groove of the mounting plate.

[0011] Preferably, the limiting bolt limits the mounting plate in the groove of the mounting frame, and the mounting plate makes the elastic buffer pad be located at one side of the movable rod.

[0012] Compared with the prior art, the oven hinge has the beneficial effects that:

[0013] 1. The oven hinge drives the screw rod to rotate on the surface of the fixed block through the rotating knob, drives the square nut to slide on the surface of the mounting arm through the rotating drive, drives the adjusting rod to slide at the bottom of the mounting arm through the square nut, changes the distance between the adjusting rod and the movable rod through sliding, improves the elasticity of the spring during use through stretching, and drives the connecting base to rotate to the original position through the movable rod and the connecting arm when the spring elasticity decreases, thereby driving the oven door to close to the original position.

[0014] 2. The oven hinge inserts the mounting plate into the rectangular groove of the mounting frame, and then screws the limiting bolt through the circular hole of the mounting frame, so that the limiting bolt is screwed into the threaded groove of the mounting plate. The limiting bolt limits the position of the mounting plate at the bottom of the mounting frame, thereby limiting the position of the elastic buffer pad. The elastic buffer pad buffers the sliding of the movable rod at the bottom of the mounting frame, thereby alleviating the impact when the oven door is closed, avoiding the impact on the oven when the oven door is closed, and enabling the elastic buffer pad to be replaced when the elasticity decreases, so that the maintenance work of the oven hinge is time-saving and labor-saving. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a front view of the structure of the utility model;

[0016] Figure 2 It is a side view of the structure of the utility model;

[0017] Figure 3 It is a top view of the structure of the utility model;

[0018] Figure 4 It is an enlarged structure of the utility model Figure 3 at A;

[0019] Figure 5This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Mounting arm; 11. Connecting base; 12. Connecting arm; 13. Movable rod; 14. Spring; 2. Fixing block; 21. Lead screw; 22. Knob; 23. Square nut; 24. Adjusting rod; 3. Mounting frame; 31. Mounting plate; 32. Limit bolt; 33. Elastic buffer pad. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 One embodiment provided by this utility model:

[0023] An oven hinge includes a mounting arm 1, a connecting base 11 rotatably connected to the surface of the mounting arm 1, a connecting arm 12 rotatably connected to the surface of the connecting base 11, a movable rod 13 slidably connected to the surface of the mounting arm 1, one end of the connecting arm 12 away from the connecting base 11 rotatably connected to the surface of the movable rod 13, a spring 14 hooked to the surface of the movable rod 13, and an adjustment mechanism provided on the surface of the mounting arm 1. The adjustment mechanism includes a fixing block 2, which is fixedly connected to the surface of the mounting arm 1. A lead screw 21 is fixedly connected to the surface of the fixing block 2, a knob 22 is fixedly connected to the surface of the lead screw 21, a square nut 23 is threaded to the surface of the lead screw 21, and an adjustment rod 24 is fixedly connected to the surface of the square nut 23. One end of the spring 14 away from the movable rod 13 is hooked to the surface of the adjustment rod 24. When the elasticity of the spring 14 decreases, the adjustment mechanism moves the adjustment rod 24 to pull the spring 14, thereby increasing the elasticity of the spring 14 during use, so that the oven hinge can return the oven door to its original position when the oven door is closed.

[0024] Furthermore, a buffer mechanism is provided at the bottom of the mounting arm 1. The buffer mechanism includes a mounting frame 3, which is fixedly connected to the bottom of the mounting arm 1. A mounting plate 31 is inserted into the bottom of the mounting frame 3. A limit bolt 32 is threaded onto the surface of the mounting plate 31. An elastic buffer pad 33 is fixedly connected to the surface of the limit bolt 32. This buffer mechanism reduces the impact force of the movable rod 13 sliding on the mounting arm 1, thereby mitigating the impact when the oven door is closed and preventing the oven from being impacted when the oven door is closed. In addition, the elastic buffer pad 33 can be replaced when its elasticity decreases, making the maintenance of the oven hinge time-saving and labor-saving.

[0025] Furthermore, two sets of guide holes are provided on the surface of the mounting arm 1. The movable rod 13 is slidably connected to one set of guide holes, and the adjusting rod 24 is slidably connected to the other set of guide holes. When the connecting base 11 rotates, it will drive the movable rod 13 to slide on the mounting arm 1, causing the movable rod 13 to pull the spring 14 to deform. The elastic force of the spring 14 will cause the connecting base 11 to return to its original position through the movable rod 13 and the connecting arm 12.

[0026] Furthermore, the fixing block 2 is provided with two sets. The lead screw 21 is driven to rotate by the knob 22. The lead screw 21 drives the square nut 23 to slide on the surface of the mounting arm 1 by rotating. The square nut 23 is in contact with a set of guide holes on the mounting arm 1. The square nut 23 drives the adjusting rod 24 to move horizontally inside the mounting arm 1. Limiting plates are provided on the surfaces of the adjusting rod 24 and the movable rod 13, so that the spring 14 maintains a relatively stable position inside the mounting arm 1.

[0027] Furthermore, the square nut 23 drives the adjusting rod 24 to slide on the guide hole of the mounting arm 1, and the elastic force of the spring 14 acts on the connecting base 11 through the movable rod 13 and the connecting arm 12. When the position of the adjusting rod 24 moves, the elastic force of the spring 14 acting on the connecting base 11 will also change accordingly.

[0028] Furthermore, a rectangular groove is provided at the bottom of the mounting frame 3, and the mounting plate 31 is inserted into the rectangular groove of the mounting frame 3. A circular hole is provided in the rectangular groove of the mounting frame 3, and a threaded groove is provided on the surface of the mounting plate 31. The limiting bolt 32 passes through the circular hole of the mounting frame 3 and the threaded groove of the mounting plate 31 and is threadedly connected. The limiting bolt 32 restricts the position of the mounting plate 31 and the limiting bolt 32 at the bottom of the mounting arm 1. The mounting frame 3 limits the installation position of the mounting plate 31 and the elastic buffer pad 33 at the bottom of the mounting arm 1.

[0029] Furthermore, the limiting bolt 32 restricts the mounting plate 31 onto the groove of the mounting frame 3. The mounting plate 31 places the elastic buffer pad 33 on one side of the movable rod 13. When the connecting arm 12 slides toward the elastic buffer pad 33, the elastic buffer pad 33 can buffer through deformation, thereby reducing the impact force when the oven door closes and ensuring the smoothness of the oven door closing.

[0030] Working principle: Rotating knob 22 drives lead screw 21 to rotate on the surface of fixed block 2. Lead screw 21 drives square nut 23 to slide on the surface of mounting arm 1. Square nut 23 drives adjusting rod 24 to slide at the bottom of mounting arm 1. Adjusting rod 24 changes the distance between itself and movable rod 13 by sliding. Adjusting rod 24 increases the elasticity of spring 14 during use by stretching. When the elasticity of spring 14 decreases, spring 14 drives connecting base 11 to rotate back to its original position through movable rod 13 and connecting arm 12, thereby driving oven door to close back to its original position.

[0031] The mounting plate 31 is inserted into the rectangular groove of the mounting frame 3, and the limiting bolt 32 is passed through the circular hole of the mounting frame 3, so that the limiting bolt 32 is threaded into the threaded groove of the mounting plate 31. The limiting bolt 32 restricts the position of the mounting plate 31 at the bottom of the mounting frame 3, thereby restricting the position of the elastic buffer pad 33. The elastic buffer pad 33 buffers the sliding of the movable rod 13 at the bottom of the mounting frame 3, so as to mitigate the impact when the oven door is closed and avoid impacting the oven when the oven door is closed. Furthermore, the elastic buffer pad 33 can be replaced when its elasticity decreases, making the maintenance of the oven hinge time-saving and labor-saving.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An oven hinge, characterized by: The utility model provides an adjustable mounting arm, including installation arm (1), the surface of installation arm (1) is rotatably connected with connecting base (11), the surface of connecting base (11) is rotatably connected with connecting arm (12), the surface of installation arm (1) is slidably connected with movable rod (13), the end of connecting arm (12) away from connecting base (11) is rotatably connected on the surface of movable rod (13), the surface of movable rod (13) is hookedly connected with spring (14), the surface of installation arm (1) is provided with adjusting mechanism, adjusting mechanism includes fixed block (2), fixed block (2) is fixedly connected on the surface of installation arm (1), the surface of fixed block (2) is fixedly connected with screw rod (21), the surface of screw rod (21) is fixedly connected with knob (22), the surface of screw rod (21) is threadedly connected with square nut (23), the surface of square nut (23) is fixedly connected with adjusting rod (24), the end of spring (14) away from movable rod (13) is hookedly connected on the surface of adjusting rod (24).

2. An oven hinge according to claim 1, wherein: The bottom of the installation arm (1) is provided with a buffer mechanism, the buffer mechanism includes an installation frame (3), the installation frame (3) is fixedly connected to the bottom of the installation arm (1), the bottom of the installation frame (3) is inserted with an installation plate (31), the surface of the installation plate (31) is threadedly connected with a limiting bolt (32), the surface of the limiting bolt (32) is fixedly connected with an elastic buffer pad (33).

3. An oven hinge according to claim 1, wherein: The surface of the installation arm (1) is provided with two groups of guide holes, the movable rod (13) is slidably connected to one group of guide holes, and the adjusting rod (24) is slidably connected to the other group of guide holes.

4. An oven hinge according to claim 3, wherein: The fixed block (2) is provided with two groups, the screw rod (21) is driven to rotate by the knob (22), and the screw rod (21) drives the square nut (23) to slide on the surface of the installation arm (1) by rotating.

5. An oven hinge according to claim 4, wherein: The square nut (23) drives the adjusting rod (24) to slide on the guide hole of the installation arm (1), and the elastic force of the spring (14) acts on the connecting base (11) through the movable rod (13) and the connecting arm (12).

6. An oven hinge according to claim 2, wherein: The bottom of the installation frame (3) is provided with a rectangular groove, the installation plate (31) is inserted into the rectangular groove of the installation frame (3), a circular hole is formed in the rectangular groove of the installation frame (3), a threaded groove is formed in the surface of the installation plate (31), and the limiting bolt (32) penetrates through the circular hole of the installation frame (3) and the threaded groove of the installation plate (31) and is threadedly connected.

7. An oven hinge according to claim 6, wherein: The limiting bolt (32) limits the installation plate (31) on the recess of the installation frame (3), and the installation plate (31) makes the elastic buffer pad (33) on one side of the movable rod (13).

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