Opening and closing connection structure of vacuum cavity

Abstract

The utility model relates to the technical field of vacuum cavities, in particular to an opening and closing connecting structure of a vacuum cavity, which comprises an opening and closing door main body and the vacuum cavity, the opening and closing door main body is mounted on the vacuum cavity, a sealing element is arranged on the inner side of the opening and closing door main body, and the sealing element is hermetically clamped with the vacuum cavity. A first door hinge movable connecting base is fixed to the outer side of the opening and closing door body, an opening and closing linkage connecting piece is rotationally connected to the first door hinge movable connecting base, and the other end of the opening and closing linkage connecting piece is rotationally connected with a second door hinge movable connecting base, so that the opening and closing door body can be opened and closed at multiple angles. According to the opening and closing connecting structure of the vacuum cavity, the door hinge is positioned through the opening and closing limiting ring capable of moving in a reciprocating mode, so that the opening and closing door can further move linearly to be locked after being closed, the tightness of a sealing structure is ensured, meanwhile, structures on the opening and closing door are reduced, heavy burden on the opening and closing door is effectively avoided, and the service life of the opening and closing door is prolonged. Therefore, the sealing performance is prevented from being influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum cavity technical field, concretely is a kind of opening and closing connection structure of vacuum cavity. BACKGROUND

[0002] Vacuum cavity is the closed container or space that internal pressure is lower than outside atmospheric pressure, by providing a low pressure environment, realize specific experimental condition or process requirement, widely used in physics, chemistry, material science, electronic industry, medical equipment and other fields.Vacuum cavity adopts flange type, pneumatic / hydraulic locking device, rotary type, sliding type and so on to realize opening and closing connection processing.

[0003] The opening and closing door of existing vacuum cavity is usually connected in the way of hinged connection, and then sealed and connected by cooperating with locking structure, such as the opening and closing structure of vacuum cavity disclosed in publication No.CN221645030U, which is controlled by pneumatic telescopic assembly to realize opening and closing connection processing, but after closing, further locking processing is needed by cooperating with locking device, resulting in more structures on opening and closing door, which will increase the weight of opening and closing door, and long-term use will affect the sealing performance. UTILITY MODEL CONTENT

[0004] The utility model aims at providing an opening and closing connection structure of vacuum cavity to solve the problem that the vacuum cavity on the market needs to cooperate with locking device for further locking processing after closing opening and closing door, resulting in more structures on opening and closing door, which will increase the weight of opening and closing door, and long-term use will affect the sealing performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an opening and closing connection structure of vacuum cavity, which comprises an opening and closing door body and a vacuum cavity, the opening and closing door body is installed on the vacuum cavity, a sealing element is arranged on the inner side of the opening and closing door body, and the sealing element is sealingly connected with the vacuum cavity, a first door hinge movable connection seat is fixed on the outer side of the opening and closing door body, an opening and closing linkage connecting piece is rotatably connected to the first door hinge movable connection seat, and a second door hinge movable connection seat is rotatably connected to the other end of the opening and closing linkage connecting piece, so that the opening and closing door body can be opened and closed at multiple angles, a sealing fastening ring is clamped and fixed to the outside of the port of the vacuum cavity, and the sealing fastening ring is connected with the opening and closing door body, an opening and closing limiting ring is movably arranged on the outside of the vacuum cavity, air cylinders of the same diameter are symmetrically connected between the opening and closing limiting ring and the sealing fastening ring, and the opening and closing limiting ring and the second door hinge movable connection seat are welded and fixed, so that the second door hinge movable connection seat can move linearly through the air cylinders.

[0006] Preferably, the cross section of the sealing element is designed in T shape, the outer side end size of the sealing element is larger than the size of the vacuum cavity, and the sealing element is clamped in the sealing fastening ring.

[0007] Preferably, the vacuum cavity is provided with a slot on both sides, and the slot corresponds to the position of the air cylinder.

[0008] Preferably, the opening and closing limiting ring is a circular ring with a T-shaped cross section, and a fastening bolt is horizontally arranged on the side surface of the opening and closing limiting ring.

[0009] Preferably, the fastening bolt is T-shaped, the end of the fastening bolt is a pointed structure, and the fastening bolt is movably connected with the slot.

[0010] Preferably, a spring is arranged on the fastening bolt, and the two ends of the spring are fixed to the outer side of the fastening bolt and the side surface of the opening and closing limiting ring by welding.

[0011] Compared with the prior art, the opening and closing connecting structure of the vacuum cavity has the beneficial effects that: the opening and closing door can be further linearly moved to realize locking after being closed, the tightness of the sealing structure is ensured, the structure on the opening and closing door is reduced, the heavy burden on the opening and closing door is effectively avoided, and the sealing property is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is an internal structure side view of the opening and closing connecting structure of the vacuum cavity.

[0013] Figure 2 It is an opening and closing connecting structure of the vacuum cavity. Figure 1 It is an enlarged structure schematic view of A in the figure.

[0014] Figure 3 It is an opening structure schematic view of the opening and closing connecting structure of the vacuum cavity.

[0015] Figure 4 It is a top view of the opening and closing connecting structure of the vacuum cavity.

[0016] In the figure: 1, opening and closing door body; 2, sealing element; 3, first door hinge movable connection seat; 4, opening and closing linkage connecting piece; 5, second door hinge movable connection seat; 6, fastening bolt; 7, vacuum cavity; 8, sealing fastening ring; 9, air cylinder; 10, opening and closing limiting ring; 11, spring; 12, slot. DETAILED DESCRIPTION

[0017] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of opening and closing connection structure of vacuum cavity, including opening and closing door main body 1 and vacuum cavity 7, opening and closing door main body 1 is installed on vacuum cavity 7, and the inside of opening and closing door main body 1 is equipped with sealing element 2, and sealing element 2 is sealed with vacuum cavity 7 and is clamped, and the outside of opening and closing door main body 1 is fixed with first door hinge movable connecting seat 3, and first door hinge movable connecting seat 3 is rotatably connected with opening and closing linkage connecting piece 4, and the other end of opening and closing linkage connecting piece 4 is rotatably connected with second door hinge movable connecting seat 5, so that opening and closing door main body 1 can be opened and closed at multiple angles, and sealing fastening ring 8 is clamped and fixed outside vacuum cavity 7 port, and the section of sealing element 2 is T type design, and the size of the outside end of sealing element 2 is greater than the size of vacuum cavity 7, and sealing element 2 is clamped in sealing fastening ring 8, this structure can make the T type structure of sealing element 2 large size part and small size part respectively clamped in sealing fastening ring 8 and vacuum cavity 7, form stepped sealing structure, ensure sealing, while opening and closing door main body 1 can be linearly moved relative to vacuum cavity 7, so that sealing element 2 can be tightly clamped, when opening opening and closing door main body 1, it can be more labor-saving, and sealing fastening ring 8 is clamped with opening and closing door main body 1, vacuum cavity 7 is provided with slot 12 on both sides, and slot 12 corresponds with the position of cylinder 9, this structure vacuum cavity 7 is positioned by being provided with slot 12 on the outside, so that fastening bolt 6 can be positioned, so that opening and closing door main body 1 can be locked by locking opening and closing limiting ring 10 after being closed, realize the locking of opening and closing linkage connecting piece 4, and then realize the locking of opening and closing door main body 1, while effectively reducing the setting of structure on opening and closing door main body 1, reduce the weight of opening and closing door main body 1, avoid the sealing of opening and closing door main body 1 to be influenced, opening and closing limiting ring 10 is movably provided outside vacuum cavity 7, opening and closing limiting ring 10 is the circular ring of section T type structure, and fastening bolt 6 is horizontally penetrated in the side surface of opening and closing limiting ring 10, this structure opening and closing limiting ring 10 is moved by the limiting of vacuum cavity 7, by reciprocating opening and closing limiting ring 10, the opening of opening and closing door main body 1 and locking can be realized, fastening bolt 6 can be synchronously moved with opening and closing limiting ring 10, and after fastening bolt 6 corresponds with the position of slot 12, fastening bolt 6 can be inserted into slot 12, so that the locking of opening and closing limiting ring 10 is realized, and cylinder 9 on the same diameter is symmetrically connected between opening and closing limiting ring 10 and sealing fastening ring 8, and opening and closing limiting ring 10 is welded and fixed with second door hinge movable connecting seat 5, so that second door hinge movable connecting seat 5 can be linearly moved by cylinder 9, fastening bolt 6 is T type structure, and the end part of fastening bolt 6 is sharp structure, and fastening bolt 6 is movably connected with slot 12, this structure can make fastening bolt 6 be inserted into slot 12 smoothly by the sharp part of fastening bolt 6, spring 11 is sleeved on fastening bolt 6, and the both ends of spring 11 are fixed with the outside end of fastening bolt 6 and the side surface of opening and closing limiting ring 10 by welding, this structure can realize the stretching of spring 11 when fastening bolt 6 is pulled out,Thus, when the fastening bolt 6 is moved to the slot 12 position again, the spring 11 can achieve the insertion process of the fastening bolt 6 by the rebound force.

[0019] Working principle: when using the opening and closing connection structure of the vacuum cavity, first, the opening and closing door body 1 is fixed through the first door hinge movable connection seat 3 and the opening and closing linkage connecting piece 4, the opening and closing linkage connecting piece 4 is connected with the opening and closing limiting ring 10 through the second door hinge movable connection seat 5, the opening and closing limiting ring 10 is sleeved outside the vacuum cavity 7, the sealing fastening ring 8 is connected with the opening and closing limiting ring 10 through the air cylinder 9, when closing the opening and closing door body 1, the opening and closing door body 1 is covered on the vacuum cavity 7, at this time, the sealing element 2 is respectively clamped into the vacuum cavity 7 and the sealing fastening ring 8, then the air cylinder 9 is started, the air cylinder 9 drives the opening and closing limiting ring 10 to move away from the sealing fastening ring 8 under the positioning of the sealing fastening ring 8, so that the second door hinge movable connection seat 5 is synchronously moved, thereby driving the opening and closing door body 1 to linearly displace, at this time, the sealing element 2 is more deeply into the vacuum cavity 7, ensuring the sealing property, when the fastening bolt 6 is moved to the slot 12, due to the rebound force of the spring 11, the fastening bolt 6 is inserted into the slot 12, realizing the sealing locking process, when the opening and closing door body 1 is opened again, the fastening bolt 6 is pulled out, and the air cylinder 9 is started again, so that the sealing element 2 is pulled to the port part of the vacuum cavity 7 by the opening and closing door body 1, so that the opening and closing door body 1 can be opened labor-savingly, thereby completing a series of work.

[0020] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vacuum cavity opening and closing connection structure, comprising an opening and closing door body (1) and a vacuum cavity (7), wherein the opening and closing door body (1) is mounted on the vacuum cavity (7), characterized in that: The inner side of the opening and closing door body (1) is provided with a sealing element (2), and the sealing element (2) is sealed and snapped into the vacuum cavity (7). The outer side of the opening and closing door body (1) is fixed with a first hinge movable connecting seat (3), and an opening and closing linkage connecting element (4) is rotatably connected to the first hinge movable connecting seat (3). The other end of the opening and closing linkage connecting element (4) is rotatably connected to a second hinge movable connecting seat (5), so that the opening and closing door body (1) can be opened and closed at multiple angles. The outer side of the port of the vacuum cavity (7) A sealing and fastening ring (8) is fixedly engaged with the opening and closing door body (1). An opening and closing limiting ring (10) is also movably sleeved on the outside of the vacuum cavity (7). A cylinder (9) with the same diameter is symmetrically connected between the opening and closing limiting ring (10) and the sealing and fastening ring (8). The opening and closing limiting ring (10) is welded and fixed to the second door hinge movable connecting seat (5), so that the second door hinge movable connecting seat (5) can move linearly through the cylinder (9).

2. The opening and closing connection structure of a vacuum cavity according to claim 1, characterized in that: The seal (2) has a T-shaped cross section, and the outer end of the seal (2) is larger than the size of the vacuum cavity (7). The seal (2) is also secured within the sealing ring (8).

3. The opening and closing connection structure of a vacuum cavity according to claim 1, characterized in that: The vacuum chamber (7) has slots (12) on both sides, and the slots (12) correspond to the positions of the cylinder (9).

4. The opening and closing connection structure of a vacuum cavity according to claim 3, characterized in that: The opening and closing limiting ring (10) is a circular ring with a T-shaped cross section, and a fastening pin (6) is horizontally inserted through the side of the opening and closing limiting ring (10).

5. The opening and closing connection structure of a vacuum cavity according to claim 4, characterized in that: The fastening pin (6) has a T-shaped structure, and the end of the fastening pin (6) has a pointed structure. The fastening pin (6) is in a movable engagement with the slot (12).

6. The opening and closing connection structure of a vacuum cavity according to claim 5, characterized in that: A spring (11) is fitted on the fastening pin (6), and the two ends of the spring (11) are fixed to the outer end of the fastening pin (6) and the side of the opening and closing limiting ring (10) by welding.

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