Box door hinge structure and freeze dryer
By designing the box door hinge structure, the limiting area and sliding parts are used to limit the rotation angle of the box door, the problem of easy damage to the freeze-drying box door during opening and closing is solved, and the reliable opening and closing of the box door and the service life are extended.
Patent Information
- Application Number
- CN202420370876.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-28
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-02-28
AI Technical Summary
Freeze-dried chassis doors are easily damaged during the opening and closing process. The prior art cannot effectively control the opening and closing angle of the box door, resulting in collision or squeezing, damaging the box door and box body.
A box door hinge structure is designed, including a lower hinge seat and a hinge shaft assembly. Through the coordination of the limiting area and the slider, the rotation angle of the box door is limited to avoid unnecessary collision and squeeze.
It effectively avoids damage caused by impacting the box body or free rotation during the opening and closing process, extends the service life of the box door, and ensures reliable opening and closing of the box door.
Smart Images
Figure CN222686431U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of box opening and closing equipment, and more specifically, to a box door hinge structure. In addition, the utility model also relates to a freeze dryer comprising the box door hinge structure. Background Art
[0002] A freeze dryer is a device used for drying materials and is widely used in the fields of medicine, biological products, food, blood products, and active substances. The test materials are taken in and out by opening and closing the door. In related technologies, the freeze dryer door is mostly made of acrylic glass swing door structure. Conventional hinge structures usually use collision or squeezing of the freeze dryer cover to achieve the purpose of door limit. In this way, the opening and closing angle of the door cannot be controlled, and the door is easily damaged during the collision and squeezing process.
[0003] In summary, how to prevent the freeze-drying machine cabinet door from being damaged during the opening and closing process is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content
[0004] In view of this, the purpose of the utility model is to provide a door hinge structure, which is simple and flexible in structure, can limit the rotation angle of the door, avoid the door hitting the box body during opening and closing, or avoid collision and extrusion caused by the free rotation of the door, avoid damage to the door body, and ensure the reliable opening and closing of the door while ensuring its service life. Another purpose of the utility model is to provide a freeze dryer including the above-mentioned door hinge structure.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A door hinge structure, comprising:
[0007] A lower hinge seat, used for connecting with the box body;
[0008] A hinge shaft assembly is arranged on the upper side of the lower hinge seat and is used to connect with the box door. One of the lower hinge seat and the hinge shaft assembly is provided with a limit interval for limiting the rotation angle of the box door. The other of the lower hinge seat and the hinge shaft assembly is provided with a sliding member. The sliding member slides within the limit interval to realize the opening and closing of the box door relative to the box body.
[0009] Preferably, the hinge shaft assembly includes a lower shaft base for connecting to the box door and a limiting column connected to the lower shaft base, and the lower hinge seat is provided with the limiting section slidably connected to the limiting column.
[0010] Preferably, a hinge shaft is also connected to the lower shaft base, one end of the hinge shaft is connected to the lower shaft base, and the other end of the hinge shaft is connected to the lower hinge seat, and the limiting column can rotate around the hinge shaft to realize the opening and closing of the box door relative to the box body.
[0011] Preferably, the limiting interval is a limiting groove provided on the lower hinge seat, and the curvature of the limiting groove is less than 180°.
[0012] Preferably, the lower hinge seat is provided with a lower waist-shaped hole for connecting with the hinge shaft. When the box body is in a negative pressure state, the hinge shaft can slide in the lower waist-shaped hole to move the box door toward the box body to press the box body.
[0013] Preferably, an upper shaft base is further provided on the upper side of the lower shaft base, and the upper shaft base and the lower shaft base are respectively used to connect to the upper side and the lower side of the box door;
[0014] An upper hinge seat is also provided on the upper side of the lower hinge seat, and an axis body hinged to the upper hinge seat is provided on the upper shaft base. When the box door is opened and closed relative to the box body, the axis body rotates in the upper hinge seat.
[0015] Preferably, an upper waist-shaped hole is provided in the upper hinge seat, and when the box body is in a negative pressure state, the hinge shaft can slide in the lower waist-shaped hole and the shaft body can slide in the upper waist-shaped hole, so that the box door moves toward the box body to press the box body.
[0016] Preferably, a first connecting hole and a second connecting hole are provided on the lower shaft base, the hinge shaft is interference fit with the first connecting hole, and the limiting column is interference fit with the second connecting hole.
[0017] The utility model also provides a freeze dryer, comprising:
[0018] The door hinge structure is any of the above door hinge structures;
[0019] A box body, wherein the opening of the box body is provided with a front sealing plate for connecting with the lower hinge seat;
[0020] The box door is connected with the hinge shaft assembly.
[0021] Preferably, a sealing member is provided on at least one of the front sealing plate and the box door, and when the box body and the box door are closed, the sealing member is compressed to achieve sealing between the box body and the box door.
[0022] The utility model provides a hinge structure for a box door, comprising a lower hinge seat and a hinge shaft assembly, wherein the lower hinge seat is connected to a box body, and the hinge shaft assembly is arranged on the upper side of the lower hinge seat and connected to the box door; a limit interval is provided on one of the lower hinge seat and the hinge shaft assembly, and a sliding member is provided on the other, wherein the limit interval is used to limit the rotation angle of the box door, and when the sliding member slides in the limit interval, the box door can be opened relative to the box body; when opening, due to the limitation of the limit interval, the rotation angle of the box door is limited, thereby avoiding the box door from hitting the box body or the free rotation of the box door to cause collision and extrusion during the opening operation, thereby avoiding damage to the door body, and ensuring the reliable opening and closing of the box door while ensuring its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0024] Figure 1 A schematic diagram of the structure of the freeze dryer provided by the utility model;
[0025] Figure 2 This is a schematic diagram of the structure of the door hinge structure provided by the utility model;
[0026] Figure 3 This is a schematic diagram of the structure of the hinge shaft assembly provided by the utility model;
[0027] Figure 4 A schematic diagram of the structure of the lower shaft base provided by the utility model;
[0028] Figure 5 A schematic diagram of the structure of the lower hinge seat provided by the utility model;
[0029] Figure 6 This is another structural schematic diagram of the lower hinge seat provided by the utility model.
[0030] Figure 1-Figure 6 , the reference numerals include:
[0031] Hinge shaft assembly 01, box door 1, lower shaft base 2, hinge shaft 3, limit column 4, lower hinge seat 5, front cover plate 6, box body 7, upper shaft base 8, upper hinge seat 9, first connecting hole 21, second connecting hole 22, fastening hole 23, limit groove 51, lower waist-shaped hole 52, fastening hole position 53, upper waist-shaped hole 91. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] The core of the utility model is to provide a door hinge structure that can limit the rotation angle of the door, avoid the door hitting the box body or the free rotation of the door causing collision and extrusion during the opening operation, avoid damage to the door and the box body, and ensure the reliable opening and closing of the door while ensuring its service life. Another core of the utility model is to provide a freeze dryer including the above door hinge structure.
[0034] The door hinge structure provided by the utility model comprises a lower hinge seat 5 and a hinge shaft assembly 01, wherein the lower hinge seat 5 is connected to the box body 7, and the connection method can be fastener connection, welding, etc., and the two are fixedly connected.
[0035] The hinge shaft assembly 01 is connected to the box door 1. The door 1 can be opened and closed relative to the box body 7 by rotating the hinge shaft assembly 01 relative to the lower hinge seat 5. The structure is simple and flexible. Please refer to Figure 1 , Figure 2 .
[0036] It should be noted that the term "below" here is only a noun to define a feature, and does not limit the position of the hinge seat. The hinge seat can be located on the upper side or the lower side of the box body 7.
[0037] One of the lower hinge seat 5 and the hinge shaft assembly 01 is provided with a limit interval for limiting the rotation angle of the box door 1, and the other of the lower hinge seat 5 and the hinge shaft assembly 01 is provided with a sliding member. The limit interval is arranged in coordination with the structure of the sliding member. There is no restriction on the shape, size, etc. of the limit interval, as long as it can cooperate with the sliding member to limit the rotation angle of the box door 1.
[0038] In this embodiment, taking a specific method as an example, a limit interval is set on the lower hinge seat 5, and a sliding member is set on the hinge shaft assembly 01. The sliding member slides in the limit interval to drive the box door 1 connected to the hinge shaft assembly 01 to rotate, so as to realize the rotation of the box door 1 relative to the box body 7.
[0039] Taking another specific embodiment as an example, a limit interval is set on the hinge shaft assembly 01, a sliding member is set on the lower hinge seat 5, and the sliding member is fixedly set on the hinge seat. The limit interval on the hinge shaft assembly 01 can slide relative to the sliding member to drive the box door 1 connected to the hinge shaft assembly 01 to rotate, so as to realize the rotation of the box door 1 relative to the box body 7.
[0040] The door 1 can be opened and closed relative to the box body 7 by sliding the sliding member within the limit interval. Due to the setting of the limit interval, the opening and closing range of the door 7 is limited, thereby avoiding squeezing and collision during free opening and closing, and avoiding the door 1 from colliding with the outer cover of the box, thereby reducing the risk of damage to the door and the box body.
[0041] Optionally, the above-mentioned box door hinge structure can be applied to the opening and closing operations of various boxes, such as incubators, freeze-drying boxes, constant humidity boxes, etc., without limiting its application field.
[0042] The above-mentioned door hinge structure includes a lower hinge seat 5 and a hinge shaft assembly 01, wherein the lower hinge seat is connected to the box body 7, and the hinge shaft assembly 01 is arranged on the upper side of the lower hinge seat 5 and connected to the door 1; one of the lower hinge seat and the hinge shaft assembly 01 is provided with a limit interval, and the other is provided with a sliding member, and the limit interval is used to limit the rotation angle of the door, and when the sliding member slides in the limit interval, the door 1 can be opened relative to the box body 7; when opening, due to the limitation of the limit interval, the rotation angle of the door 1 is limited, so as to avoid the door hitting the box body or the free rotation of the door causing collision and extrusion during the opening operation, thereby avoiding damage to the door body, and ensuring the reliable opening and closing of the door while ensuring its service life.
[0043] Based on the above embodiment, the hinge shaft assembly 01 includes a lower shaft base 2 for connecting to the box door 1 and a limiting column 4 connected to the lower shaft base 2, and a limiting interval slidably connected to the limiting column 4 is provided on the lower hinge seat 5.
[0044] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 The hinge shaft assembly 01 includes a lower shaft base 2 and a limiting column 4 connected to the lower shaft base 2, wherein the lower shaft base 2 is fixedly connected to the box door 1, preferably connected to the fastening hole 23 on the lower shaft base 2 by bolts to achieve a reliable connection between the lower shaft base 2 and the box door 1.
[0045] In this embodiment, the sliding member described above is the limit column 4, and the limit interval is set on the lower hinge seat 5. The opening and closing operation of the door 1 relative to the box body 7 is achieved by sliding the limit column 4 in the limit interval.
[0046] Optionally, one or two limiting columns 4 can be provided, and the number can be changed flexibly.
[0047] In this embodiment, there is no restriction on the connection relationship between the limiting column 4 and the lower shaft base 2, and the two can be reliably fixedly connected.
[0048] Based on any of the above embodiments, a hinge shaft 3 is also connected to the lower shaft base 2, one end of the hinge shaft 3 is connected to the lower shaft base 2, and the other end of the hinge shaft 3 is connected to the lower hinge seat 5. The limiting column 4 can rotate around the hinge shaft 3 to realize the opening and closing of the box door 1 relative to the box body 7.
[0049] Please refer to Figure 2 A hinge shaft 3 is also provided on the lower shaft base 2, and the hinge shaft 3 is provided on one side of the limiting column 4. One end of the hinge shaft 3 is fixedly connected to the lower shaft base 2, and the other end is connected to the lower hinge seat 5. During the rotation of the box door 1, the limiting column 4 can rotate around the hinge shaft 3.
[0050] Optionally, the size and shape of the hinge shaft 3 can be flexibly designed according to actual needs without limitation.
[0051] Preferably, both ends of the hinge shaft 3 and the limiting column 4 are provided with chamfers.
[0052] On the basis of any of the above embodiments, the limiting interval is a limiting groove 51 provided on the lower hinge seat 5, and the curvature of the limiting groove 51 is less than 180°.
[0053] Please refer to Figure 2 , Figure 6 The limiting interval is the arc-shaped limiting groove on the lower hinge seat 5, and the arc of the limiting groove 51 is less than 180°, so as to avoid damage to the box body 7 when the box door 1 is opened and closed.
[0054] The curvature, length, etc. of the specific arc-shaped limit groove can be flexibly designed according to the actual working conditions without excessive restrictions.
[0055] Based on any of the above embodiments, a lower waist-shaped hole 52 for connecting with the hinge shaft 3 is provided on the lower hinge seat 5. When the box body 7 is in a negative pressure state, the hinge shaft 3 can slide in the lower waist-shaped hole 52 to move the box door 1 toward the box body 7 to press the box body 7.
[0056] Please refer to Figure 2 , Figure 6 A lower waist-shaped hole 52 is provided to allow the box door 1 to rotate, thereby ensuring the sealing of the box body.
[0057] Specifically, under normal pressure, the box door 1 is closed to compress the seal on the box body 7 to ensure the sealing of the box body; when evacuating, the box body 7 is in a negative pressure state, and the lower waist-shaped hole 52 is set to reserve movement space for the box door 1. The hinge shaft 3 can slide in the lower waist-shaped hole 52 to move the box door 1 toward the box body 7, so as to further compress the seal on the box body 7 to ensure the sealing.
[0058] By providing the lower waist-shaped hole 52 , a certain amount of moving space is reserved for the box door 1 , further ensuring a better sealing effect of the box body 7 .
[0059] On the basis of any of the above embodiments, an upper shaft base 8 is further provided on the upper side of the lower shaft base 2, and the upper shaft base 8 and the lower shaft base 2 are respectively used to correspond to the upper side and the lower side of the connection box 7;
[0060] An upper hinge seat 9 is also provided on the upper side of the lower hinge seat 5 , and an axle body hinged to the upper hinge seat 9 is provided on the upper shaft base 8 . When the box door 1 is opened or closed relative to the box body 7 , the axle body rotates in the upper hinge seat 9 .
[0061] Please refer to Figure 1 , Figure 2 The upper shaft base 8 and the lower shaft base 2 are both used to connect with the box door 1. Here, the up and down directions of the box door 1 are limited. The upper shaft base 8 is connected to the top of the box door 1, and the lower shaft base 2 is connected to the bottom of the box door 1. Figure 1 The up and down directions are based on .
[0062] Both the lower hinge seat 5 and the upper hinge seat 9 are used to connect with the box body 7 , wherein the lower hinge seat 5 is connected to the lower end of the side of the box body 7 , and the upper hinge seat 9 is connected to the upper end of the side of the box body 7 .
[0063] The upper shaft base 8 is provided with a shaft body hinged to the upper hinge seat 9 . When the box door 1 is opened or closed relative to the box body 7 , the shaft body rotates in the upper hinge seat 9 , and the limiting column 4 rotates around the hinge shaft 3 in the limiting groove 51 .
[0064] Based on any of the above embodiments, an upper waist-shaped hole 91 is provided in the upper hinge seat 9. When the box body 7 is in a negative pressure state, the hinge shaft 3 can slide in the lower waist-shaped hole 52 and the shaft body can slide in the upper waist-shaped hole 91, so that the box door 1 moves toward the box body 7 to press the box body 7.
[0065] Please refer to Figure 1 , Figure 6 An upper waist-shaped hole 91 is provided in the upper hinge seat 9, and the upper waist-shaped hole 91 and the lower waist-shaped hole 52 are preferably consistent. The setting of the two waist-shaped holes can provide a certain movement space for the box body 1 when the box body 7 is in a negative pressure state to ensure the overall sealing effect.
[0066] Specifically, when the box body 7 is in a negative pressure state, the hinge shaft 3 can slide in the lower waist-shaped hole 52 and the shaft body can slide in the upper waist-shaped hole 91, so that the box door 1 moves toward the box body 7 to compress the seal on the box body 7 to ensure the overall sealing effect.
[0067] Optionally, the upper waist-shaped hole 91 can also be set on the shaft body (corresponding to the rotating axis set on the upper hinge seat 9), and the lower waist-shaped hole 52 can also be set on the hinge shaft 3 (corresponding to the rotating axis set on the lower hinge seat 5), as long as space is provided for further movement of the box door 1 under negative pressure conditions.
[0068] On the basis of any of the above embodiments, a first connecting hole 21 and a second connecting hole 22 are provided on the lower shaft base 2 , the hinge shaft 3 is interference fit with the first connecting hole 21 , and the limiting column 4 is interference fit with the second connecting hole 22 .
[0069] Please refer to Figures 1 to 4 There is no restriction on the size and position of the first connecting hole 21 and the second connecting hole 22. The hinge shaft 3 is interference fit with the first connecting hole 21, and the limit column 4 is interference fit with the second connecting hole 22, so as to ensure the reliability and effectiveness of the opening and closing operation of the door 1.
[0070] In addition to the above-mentioned cabinet door hinge structure, the present invention also provides a freeze dryer including the cabinet door hinge structure disclosed in the above-mentioned embodiment, the freeze dryer comprising:
[0071] The door hinge structure is the door hinge structure described in any of the above embodiments;
[0072] A box body 7, wherein a front sealing plate 6 for connecting with a lower hinge seat 5 is provided at the opening of the box body 7;
[0073] The cabinet door 1 is connected with the hinge shaft assembly 01.
[0074] Please refer to Figure 1 , Figure 2 In addition to the door hinge structure, the box body 7, the door 1, the front sealing plate 6, etc., the freeze dryer also has other common structures, which can be referred to the prior art and will not be described here.
[0075] The front sealing plate 6 is a component at the opening of the box body 7, and the two are fixedly connected. The fastening holes 53 on the lower hinge seat 5 are connected with fasteners to achieve a reliable connection between the lower hinge seat 5 and the front sealing plate 6.
[0076] On the basis of the above embodiment, a seal is provided on at least one of the front sealing plate 6 and the box door 1 , and when the box body 7 and the box door 1 are closed, the seal is compressed to achieve sealing between the box body 7 and the box door 1 .
[0077] When the box body 7 and the door 1 are normally closed and the box body 7 is in a normal pressure state, the seal is compressed to ensure the sealing effect; when the box body 7 is in a negative pressure state, the door 1 can be further moved to compress the seal to ensure the sealing effect.
[0078] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0079] The above is a detailed introduction to a door hinge structure and a freeze dryer provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A door hinge structure, characterized in that: include: A lower hinge seat (5) for connecting with the box body (7); A hinge shaft assembly (01) is arranged on the upper side of the lower hinge seat (5) and is used to connect with the box door (1); one of the lower hinge seat (5) and the hinge shaft assembly (01) is provided with a limit interval for limiting the rotation angle of the box door (1); the other of the lower hinge seat (5) and the hinge shaft assembly (01) is provided with a sliding member, and the sliding member slides within the limit interval to realize the opening and closing of the box door (1) relative to the box body (7); The hinge shaft assembly (01) comprises a lower shaft base (2) for connecting to the box door (1) and a limiting column (4) connected to the lower shaft base (2); the lower hinge seat (5) is provided with the limiting section slidably connected to the limiting column (4); An upper shaft base (8) is also provided on the upper side of the lower shaft base (2), and the upper shaft base (8) and the lower shaft base (2) are respectively used to connect to the upper side and the lower side of the box door (1); An upper hinge seat (9) is also provided on the upper side of the lower hinge seat (5), and an axle body hinged to the upper hinge seat (9) is provided on the upper shaft base (8). When the box door (1) is opened or closed relative to the box body (7), the axle body rotates in the upper hinge seat (9).
2. The door hinge structure according to claim 1, characterized in that: The lower shaft base (2) is also connected to a hinge shaft (3), one end of the hinge shaft (3) is connected to the lower shaft base (2), and the other end of the hinge shaft (3) is connected to the lower hinge seat (5). The limiting column (4) can rotate around the hinge shaft (3) to realize the opening and closing of the box door (1) relative to the box body (7).
3. The door hinge structure according to claim 2, characterized in that: The limiting interval is a limiting groove (51) provided on the lower hinge seat (5), and the curvature of the limiting groove (51) is less than 180°.
4. The door hinge structure according to claim 3, characterized in that: The lower hinge seat (5) is provided with a lower waist-shaped hole (52) for connecting with the hinge shaft (3); when the box body (7) is in a negative pressure state, the hinge shaft (3) can slide in the lower waist-shaped hole (52) to move the box door (1) toward the box body (7) to press the box body (7).
5. The door hinge structure according to claim 4, characterized in that: An upper waist-shaped hole (91) is provided in the upper hinge seat (9); when the box body (7) is in a negative pressure state, the hinge shaft (3) can slide in the lower waist-shaped hole (52) and the shaft body can slide in the upper waist-shaped hole (91), so that the box door (1) moves toward the box body (7) to press the box body (7).
6. The door hinge structure according to claim 5, characterized in that: The lower shaft base (2) is provided with a first connecting hole (21) and a second connecting hole (22); the hinge shaft (3) is interference-fitted with the first connecting hole (21); and the limit column (4) is interference-fitted with the second connecting hole (22).
7. A freeze dryer, characterized in that: include: The door hinge structure is the door hinge structure according to any one of claims 1 to 6; A box body (7), wherein a front sealing plate (6) for connecting to the lower hinge seat (5) is provided at the opening of the box body (7); The cabinet door (1) is connected to the hinge shaft assembly (01).
8. The freeze dryer according to claim 7, characterized in that: A sealing member is provided on at least one of the front sealing plate (6) and the box door (1); when the box body (7) and the box door (1) are closed, the sealing member is compressed to achieve sealing between the box body (7) and the box door (1).