Box door hinge structure of vacuum drying box

Abstract

The utility model relates to a vacuum drying oven door hinge structure, which comprises a fixed plate, a first adapter block, an outer frame, a second adapter block, a rotating rod, a sliding plate and an adjusting piece, the fixed plate is provided with a first mounting hole which is used for fixedly connecting an oven body of a vacuum drying oven, the first adapter block is arranged on one side of the fixed plate, and the second adapter block is arranged on the outer frame. The second adapter block is arranged on one side of the outer frame, the second adapter block is rotationally connected with the first adapter block through the rotating rod, a sliding groove is formed in the outer frame, the sliding plate is arranged in the sliding groove, and a second mounting hole is formed in the sliding plate and used for being fixedly connected with a box door of the vacuum drying box. The adjusting part is arranged between the outer frame and the sliding plate and used for adjusting transverse movement of the sliding plate. The adjusting piece is installed between the outer frame and the sliding plate so that transverse movement adjustment of the sliding plate can be achieved, and therefore noise caused by shaking of the box door of the vacuum drying box in the long-term use process is avoided.

Description

Technical Field

[0001] The utility model relates to a door hinge structure of a vacuum drying box. Background Art

[0002] Existing conventional hinges are mechanically openable and closeable, with limited opening and closing flexibility and a relatively simple function. For example, a door hinge device, listed in Publication No. CN111425089B, comprises a first hinge fixing plate, a second hinge fixing plate, and a rotating shaft. The first hinge fixing plate is fixedly connected to the rotating shaft, a bushing is provided between the second hinge fixing plate and the rotating shaft, the bushing being mounted on a washer, which is mounted on the rotating shaft on the first hinge fixing plate. The rotating shaft is provided with an axial through-hole and a first connecting hole connected to the through-hole and leading to the exterior. The washer is provided with a second connecting hole leading to the exterior, and the first and second connecting holes are positioned correspondingly. This door hinge assembly allows lubricating oil to be added to the hinge assembly via a through-hole provided in the direction of the axis of the rotating shaft, a first connecting hole, and a second connecting hole provided in the gasket. Furthermore, a bushing is provided between the second hinge fixing plate and the rotating shaft to ensure lubricated movement between the second hinge fixing plate and the rotating shaft, eliminating noise generated when opening and closing the door. While practical, this assembly fails to achieve lateral adjustment based on the movement of the door. During operation of the vacuum drying oven, the door will be affected by the negative pressure within the vacuum drying oven, causing it to move laterally a certain distance toward the drying chamber. Over time, this can cause the door and hinge to become loose, causing the door to shake and generate noise during subsequent use. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0004] The technical problem to be solved by the utility model is how to prevent the door of a vacuum drying box from shaking and generating noise during long-term use.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a hinge structure for a door of a vacuum drying oven, comprising a fixed plate, a first adapter block, an outer frame, a second adapter block, a rotating rod, a slide and an adjusting member, wherein the fixed plate is provided with a first mounting hole for fixing the box body of the vacuum drying oven, the first adapter block is arranged on one side of the fixed plate, the second adapter block is arranged on one side of the outer frame, the second adapter block is rotatably connected to the first adapter block through the rotating rod, a sliding groove is provided on the outer frame, the slide is arranged in the sliding groove, a second mounting hole is provided on the slide for fixing the door of the vacuum drying oven, and the adjusting member is arranged between the outer frame and the slide for adjusting the lateral movement of the slide.

[0006] As a preferred solution of the door hinge structure of the vacuum drying oven described in the present invention, the adjusting member includes a first fixed cover plate, a second fixed cover plate and a spring, the first fixed cover plate is arranged on the inner side of the outer frame, the second fixed cover plate is arranged on one side of the slide, and the spring is arranged between the first fixed cover plate and the second fixed cover plate to limit and fix the spring to ensure that the position of the spring is relatively stable during the compression process.

[0007] As a preferred solution of the door hinge structure of the vacuum drying oven of the present invention, the adjusting member further comprises a guide rod, one end of which is arranged at the center of the first fixed cover plate, a through hole is provided in the center of the second fixed cover plate to cooperate with the guide rod, the slide plate is provided with a hole to cooperate with the guide rod, and the other end of the guide rod passes through the spring and the through hole and extends into the hole to provide guidance for the compression of the spring and prevent the spring from deflecting or twisting during compression.

[0008] As a preferred solution for the hinge structure of the door of the vacuum drying oven described in the present invention, the first mounting hole is a transverse waist-shaped hole, so that the fixing plate can be fine-tuned for transverse movement relative to the box body, further avoiding the shaking and noise generation of the door of the vacuum drying oven during long-term use.

[0009] As a preferred solution for the hinge structure of the door of the vacuum drying oven of the present invention, the second mounting hole is a longitudinal waist-shaped hole, so that the slide can be fine-tuned for longitudinal movement relative to the door, further preventing the door of the vacuum drying oven from shaking and generating noise during long-term use.

[0010] As a preferred solution of the door hinge structure of the vacuum drying oven of the present invention, the first fixed cover plate and the second fixed cover plate are both made of rubber to avoid noise caused by collision and friction between the spring and the first fixed cover plate and the second fixed cover plate.

[0011] Beneficial effect: By installing an adjusting piece between the outer frame and the slide, the lateral movement of the slide can be adjusted, thereby preventing the door of the vacuum drying box from shaking and generating noise during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0013] Figure 1 This is a schematic diagram of the overall structure of the door hinge structure of the vacuum drying oven.

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0015] Figure 3 Schematic diagram of the connection structure between the vacuum drying oven and the hinge.

[0016] In the figure: 1. fixed plate; 2. first adapter block; 3. outer frame; 4. second adapter block; 5. rotating rod; 6. slide plate; 7. first mounting hole; 8. slide groove; 9. second mounting hole; 10. first fixed cover plate; 11. second fixed cover plate; 12. spring; 13. guide rod; 14. through hole; 15. hole; 16. box body; 17. box door. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0020] Example

[0021] Reference Figures 1 to 3, this embodiment provides a door hinge structure of a vacuum drying oven, including a fixed plate 1, a first adapter block 2, an outer frame 3, a second adapter block 4, a rotating rod 5, a slide 6 and an adjusting member. The fixed plate 1 is provided with a first mounting hole 7 for fixedly connecting the box body 16 of the vacuum drying oven, the first adapter block 2 is arranged on one side of the fixed plate 1, the second adapter block 4 is arranged on one side of the outer frame 3, the second adapter block 4 is rotatably connected to the first adapter block 2 through the rotating rod 5, the outer frame 3 is provided with a slide groove 8, the slide 6 is arranged in the slide groove 8, the slide 6 is provided with a second mounting hole 9 for fixedly connecting the door 17 of the vacuum drying oven, and the adjusting member is arranged between the outer frame 3 and the slide 6 for adjusting the lateral movement of the slide 6.

[0022] The hinge structure of the door 17 is mainly composed of a fixed plate 1 and an outer frame 3. The fixed plate 1 is a rectangular parallelepiped structure. Four first mounting holes 7 are symmetrically opened on the fixed plate 1. By passing the bolts through the first mounting holes 7, the fixed plate 1 is easily mounted on the outer surface of the box body 16 of the vacuum drying oven. Two first adapter blocks 2 are symmetrically installed on the right side of the fixed plate 1, and three second adapter blocks 4 that match the first adapter blocks 2 are installed on the left side of the outer frame 3. A rotating rod 5 is inserted into the inside of the first adapter block 2 and the second adapter block 4, so that the first adapter block 2 is rotatably connected to the second adapter block 4 through the rotating rod 5 to realize the rotational connection between the fixed plate 1 and the outer frame 3. A slide groove 8 is provided, and a slide plate 6 is slidably installed in the slide groove 8 so that the slide plate 6 can slide left and right in the outer frame 3. Four second mounting holes 9 are symmetrically provided on the slide plate 6. Bolts are passed through the second mounting holes 9 to facilitate the slide plate 6 to be mounted to the outer surface of the door 17 of the vacuum drying oven, so as to realize the rotational connection between the door 17 and the box body 16 of the vacuum drying oven. An adjusting member is installed between the outer frame 3 and the slide plate 6. The adjusting member can realize the effect of automatic left and right sliding of the slide plate 6, thereby realizing the effect of automatic adjustment of the distance between the door 17 and the box body 16, thereby avoiding the shaking and noise generation of the door 17 of the vacuum drying oven during long-term use.

[0023] Specifically, the adjusting member includes a first fixed cover plate 10, a second fixed cover plate 11 and a spring 12. The first fixed cover plate 10 is arranged on the inner side of the outer frame 3, the second fixed cover plate 11 is arranged on one side of the slide plate 6, and the spring 12 is arranged between the first fixed cover plate 10 and the second fixed cover plate 11.

[0024] The adjusting piece in the embodiment mainly consists of three first fixed cover plates 10, three second fixed cover plates 11 and three springs 12. Three first fixed cover plates 10 are uniformly installed on the inner side of the outer frame 3 close to the second adapter block 4, three second fixed cover plates 11 corresponding to the positions of the first fixed cover plates 10 are uniformly installed on the left outer surface of the sliding plate 6, and three springs 12 are respectively installed between the three pairs of first fixed cover plates 10 and second fixed cover plates 11. The automatic adjustment of the box door 17 is realized through the elastic force of the spring 12, that is, the distance between the box door 17 and the box body 16 can be automatically adjusted according to the working state (normal pressure state or negative pressure state) of the vacuum drying box, so that the hinge has an automatic compression function, and the maximum compression stroke is about 6mm. The first fixed cover plate 10 and the second fixed cover plate 11 are matched with each other to limit and fix the spring 12, so as to ensure the relative stability of the position of the spring 12 in the compression process. It should be noted that the specific parameters of the spring 12 are not limited in the embodiment, and the compression amount of the spring 12 can be adjusted according to the specific requirements, so as to adjust the elastic force, extension length and other parameters of the spring 12 to meet the design requirements of different hinge of the box door 17.

[0025] Further, the adjusting piece further comprises a guide rod 13, one end of the guide rod 13 is arranged in the center of the first fixed cover plate 10, a through hole 14 matched with the guide rod 13 is formed in the center of the second fixed cover plate 11, a hole 15 matched with the guide rod 13 is formed on the sliding plate 6, and the other end of the guide rod 13 penetrates through the spring 12 and the through hole 14 and extends into the hole 15.

[0026] In the embodiment, the guide rod 13 is installed at the central position of the inner surface of the first fixed cover plate 10, the through hole 14 matched with the guide rod 13 is formed at the central position of the second fixed cover plate 11, the other end of the guide rod 13 away from the first fixed cover plate 10 penetrates through the entire spring 12 and the through hole 14, and the hole 15 matched with the guide rod 13 is formed on the left side of the sliding plate 6, so that the one end of the guide rod 13 penetrating through the through hole 14 extends into the hole 15. The guide rod 13 can freely slide in the hole 15, and the depth of the hole 15 also meets the normal use of the adjusting piece, so as to provide guidance for the compression of the spring 12 and prevent the spring 12 from deviating or twisting during compression, so as to realize stable compression operation of the spring 12 and ensure that the spring 12 will not be accidentally deformed or damaged during compression, thereby improving the stability and reliability of the entire hinge.

[0027] Further, the first mounting hole 7 is a transverse waist-shaped hole.

[0028] In the embodiment, the first mounting hole 7 is designed as a transverse waist-shaped hole structure, so that the fixed plate 1 can be slightly adjusted in the transverse direction relative to the box body 16, avoiding loosening of the fixed plate 1 due to transverse movement of the fixed plate 1, and further avoiding noise caused by shaking of the box door 17.

[0029] Furthermore, the second mounting hole 9 is a longitudinal waist-shaped hole.

[0030] In this embodiment, the second mounting hole 9 is designed as a longitudinal waist-shaped hole structure, so that the slide plate 6 can be fine-tuned to a certain extent in the longitudinal movement relative to the box door 17, thereby avoiding the slide plate 6 from loosening due to the longitudinal movement of the box door 17, and further avoiding the noise caused by the shaking of the box door 17.

[0031] Furthermore, the first fixed cover plate 10 and the second fixed cover plate 11 are both made of rubber.

[0032] In this embodiment, the first fixed cover plate 10 and the second fixed cover plate 11 are both made of rubber to avoid noise caused by collision and friction between the spring 12 and the first fixed cover plate 10 and the second fixed cover plate 11 .

[0033] When in use, when the box door 17 is closed, the vacuum drying box is evacuated, so that the box body 16 is in a negative pressure state. At this time, the box door 17 is affected by the negative pressure and moves toward the box body 16. The box door 17 drives the slide plate 6 to move in the direction of the spring 12. The slide plate 6 squeezes the spring 12, and as the pressure in the box body 16 changes, the box door 17 continues to change and move in the direction closer to or away from the box body 16. At this time, the slide plate 6 will also slide left and right in the outer frame 3 under the elastic force of the spring 12, thereby realizing automatic adjustment of the lateral movement of the box door 17 through the hinge, and if the box door 17 falls, that is, the box door 17 moves in the longitudinal direction, the second mounting hole 9 of the longitudinal waist-shaped hole structure can also allow the slide plate 6 to perform a certain degree of longitudinal movement fine-tuning relative to the box door 17, so that the box door 17 can achieve a maximum 6mm lateral adjustment and a certain degree of longitudinal fine-tuning relative to the hinge, thereby avoiding the box door 17 shaking and generating noise due to loosening of the connecting bolts between the hinge and the box door 17 and the box body 16.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A door hinge structure for a vacuum drying oven, characterized in that: The invention comprises a fixed plate (1), a first adapter block (2), an outer frame (3), a second adapter block (4), a rotating rod (5), a slide plate (6) and an adjusting member, wherein the fixed plate (1) is provided with a first mounting hole (7) for fixing and connecting the box body of the vacuum drying box, the first adapter block (2) is arranged on one side of the fixed plate (1), the second adapter block (4) is arranged on one side of the outer frame (3), the second adapter block (4) is rotatably connected to the first adapter block (2) through the rotating rod (5), the outer frame (3) is provided with a sliding groove (8), the slide plate (6) is arranged in the sliding groove (8), the slide plate (6) is provided with a second mounting hole (9) for fixing and connecting the door of the vacuum drying box, and the adjusting member is arranged between the outer frame (3) and the slide plate (6) for adjusting the lateral movement of the slide plate (6).

2. The hinge structure for the door of a vacuum drying oven according to claim 1, wherein: The adjusting member comprises a first fixed cover plate (10), a second fixed cover plate (11) and a spring (12); the first fixed cover plate (10) is arranged on the inner side of the outer frame (3); the second fixed cover plate (11) is arranged on one side of the slide plate (6); and the spring (12) is arranged between the first fixed cover plate (10) and the second fixed cover plate (11).

3. The hinge structure for the door of a vacuum drying oven according to claim 2, wherein: The adjusting member further comprises a guide rod (13), one end of the guide rod (13) is arranged at the center of the first fixed cover plate (10), a through hole (14) is provided at the center of the second fixed cover plate (11) and is matched with the guide rod (13), the slide plate (6) is provided with a hole (15) which is matched with the guide rod (13), and the other end of the guide rod (13) passes through the spring (12) and the through hole (14) and extends into the hole (15).

4. The hinge structure for the door of a vacuum drying oven according to claim 3, wherein: The first mounting hole (7) is a transverse waist-shaped hole.

5. The hinge structure for the door of a vacuum drying oven according to claim 4, characterized in that: The second mounting hole (9) is a longitudinal waist-shaped hole.

6. The hinge structure for the door of a vacuum drying oven according to claim 2, wherein: The first fixed cover plate (10) and the second fixed cover plate (11) are both made of rubber.

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