Track-changing low-temperature sealed door

Abstract

The utility model discloses a track-changing low-temperature sealed door, comprising a door body, the door body is used to block an opening on a wall, the sealed door also comprises a frame fixedly arranged relative to the wall, a lifting body is mounted on the frame by a sliding fit; the lifting body is connected to the door body by a connecting rod; a track is arranged on the frame, the track comprises a vertical section and a curved end whose head end is connected to the lower end of the vertical section, the tip of the curved end faces the wall; a pin shaft matched with the track is mounted on the door body. The utility model adopts a track-changing structure, the door body will not contact the wall during lifting, and the door body will gradually change to horizontal movement after descending along the track to a position close to the opening when closed, and finally embedded in the opening and tightly matched with the door frame. The utility model not only improves the sealing performance, but also reduces the wear of components, and solves the problem of reduced sealing performance after multiple openings and closings.

Description

Technical Field

[0001] The utility model belongs to the technical field of food quick-freezing equipment, and in particular relates to a sealing door for preventing cold wind from escaping. Background Art

[0002] In low temperature environments such as cold storage, the sealing performance of the sealed door directly affects the insulation effect.

[0003] In order to ensure that the sealed door can open and close normally and smoothly, many traditional sealed doors are not tightly closed with the wall after closing, resulting in poor sealing. If the gap between the sealed door and the wall is reduced or the two are always in contact during relative movement, it will not only affect the normal operation of the sealed door, but also the sealing performance will drop rapidly after long-term use due to component wear and material aging, causing cold air to escape, seriously affecting the insulation effect, causing frost on the evaporative cooler, and poor cooling effect. Utility Model Content

[0004] The utility model provides a track-changing low-temperature sealed door, the purpose of which is to improve the sealing performance of the sealed door.

[0005] The technical solution of this utility model is as follows:

[0006] A track-changing low-temperature sealed door, comprising a door body, the door body being used to block an opening on a wall, the sealed door further comprising a frame fixedly arranged relative to the wall, a lifting body being mounted on the frame in a sliding manner; the lifting body being connected to the door body through a connecting rod;

[0007] The frame is provided with a track, the track comprises a vertical section and a curved end whose head end is connected to the lower end of the vertical section, and the distal end of the curved end faces the wall;

[0008] A pin shaft matched with the track is installed on the door body.

[0009] As a further improvement of the track-changing low-temperature sealed door: the connecting rods are divided into two or more groups, one end of each group of connecting rods is rotatably connected to the lifting body, and the other end is rotatably connected to the door body; the door body, connecting rods and lifting body form a spatial parallelogram mechanism.

[0010] As a further improvement of the track-changing low-temperature sealed door: the sealed door also includes a lifting drive device for driving the lifting body to move up and down.

[0011] As a further improvement of the track-changing low-temperature sealed door: the lifting drive device includes a motor, a gear and a rack; the motor is used to drive the gear to rotate, the gear and the rack are meshed, and the rack is connected to the lifting body.

[0012] As a further improvement of the track-changing low-temperature sealed door: a bracket is installed on the frame, and the motor and the gear are installed on the bracket.

[0013] As a further improvement of the track-changing low-temperature sealed door: a roller is also installed on the bracket, and one side of the rack is meshed with the gear and the other side is matched with the roller.

[0014] As a further improvement of the track-changing low-temperature sealed door: a sliding block is provided on the lifting body, and the sliding block cooperates with a vertical guide rail arranged on the frame.

[0015] As a further improvement of the track-changing low-temperature sealed door: a soft curtain is also installed at the bottom of the door body, and the lower end of the soft curtain is used to contact the conveyor belt passing through the opening.

[0016] As a further improvement of the track-changing low-temperature sealed door: it also includes a door frame installed in the opening, and a sealing strip is provided at the joint between the door frame and the door body.

[0017] Compared with the prior art, the utility model has the following positive effects:

[0018] The utility model adopts a track-changing structure. When the door body is opened, it first moves horizontally for a short distance along the track, and then changes to vertical movement. Therefore, the door body will not contact the wall during lifting, reducing wear; when closing, the door body descends along the track to a position close to the opening and then gradually changes to horizontal movement. The driving force of the lifting body is converted into a thrust to push the door body toward the wall until the door body is embedded in the opening and fits tightly with the door frame. The utility model not only improves the sealing performance, but also reduces the wear of components, solving the problem of reduced sealing performance after multiple openings and closings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 for Figure 1 A magnified view of part A;

[0021] Figure 3 for Figure 1 A magnified view of part B;

[0022] Figure 4 It is a structural schematic diagram of the frame and the driving device;

[0023] Figure 5 It is a structural schematic diagram of the lifting body, door body, connecting rod and rack part;

[0024] Figure 6 It is a structural schematic diagram of the lifting body, connecting rod and rack part;

[0025] Figure 7 It is a structural schematic diagram of the door body;

[0026] Figure 8 This is a structural diagram of the wall and door frame. DETAILED DESCRIPTION

[0027] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments.

[0028] like Figure 1 and 8 A track-changing low-temperature sealed door includes a door body 4, which is used to block an opening on a wall 1. A door frame 10 is installed in the opening, and a sealing strip is provided at the matching position between the door frame 10 and the door body 4.

[0029] like Figure 3 , 4 , 5, 6, the sealed door also includes a frame 3 installed on the wall 1 by bolts, and the frame 3 includes two left and right vertical plates, and the vertical plates are connected by horizontal slide rails. A vertical guide rail 3-1 is installed on the rear side of the vertical plate. The vertical plates of the frame 3 are also provided with tracks 3-2, two groups on the left and two groups on the right. The track 3-2 is J-shaped, including a vertical section and a curved end whose head end is connected to the lower end of the vertical section, and the tip of the curved end faces the wall 1.

[0030] The sealing door further comprises a lifting body 6, and two sets of sliding blocks 6-1 are respectively arranged at the left and right ends of the lifting body 6, and the sliding blocks 6-1 are slidably matched with the guide rails 3-1.

[0031] Furthermore, the lifting body 6 is connected to the door body 4 through four connecting rods 7, one end of each group of connecting rods 7 is rotatably connected to the lifting body 6, and the other end is rotatably connected to the door body 4. The door body 4, connecting rods 7 and lifting body 6 form a spatial parallelogram mechanism, so that the door body 4 always maintains a vertical state.

[0032] like Figure 5 and 7 The door body 4 is provided with four groups of pins 8 which match the tracks 3-2 one by one.

[0033] Furthermore, if Figure 1 , 2 4. The sealing door further comprises a lifting drive device 5 for driving the lifting body 6 to move up and down. The lifting drive device 5 comprises a motor 5-1, a gear 5-2 and a rack 5-3. The motor 5-1 is used to drive the gear 5-2 to rotate, the gear 5-2 is meshed with the rack 5-3, and the rack 5-3 is connected to the lifting body 6.

[0034] Furthermore, a bracket 5-5 is installed on the frame body 3, and the bracket 5-5 can be fixed or can move left and right along the slide rail (the lower end of the rack 5-3 moves synchronously along the horizontal slide rail on the lifting body 6). The motor 5-1 and the gear 5-2 are installed on the bracket 5-5. A roller 5-4 is also installed on the bracket 5-5, and one side of the rack 5-3 is meshed with the gear 5-2 and the other side is matched with the roller 5-4.

[0035] Furthermore, if Figure 7 A soft curtain 9 is also installed at the bottom of the door body 4, and the lower end of the soft curtain 9 is used to contact the conveyor belt 2 passing through the hole.

[0036] When the door body 4 is opened, it first moves horizontally for a short distance along the track 3-2, and then changes to vertical movement. When the door body 4 is lifted, it will not contact the wall 1, reducing wear. When closing, the door body 4 first descends along the track 3-2 to a position close to the opening, and then gradually changes to horizontal movement. The driving force of the lifting body 6 descending is converted into a thrust to push the door body 4 toward the wall 1 until the door body 4 is embedded in the opening and fits tightly with the door frame 10. The sealing strip fits tightly with the door frame 10, which can effectively prevent cold air from escaping through the gap.

[0037] In addition, the device can also be combined with monitoring equipment such as temperature sensors and humidity sensors to monitor the temperature and humidity changes in the low-temperature environment in real time, and automatically control the movement of the sealing door through the control system to adapt to the insulation needs under different environmental conditions.

[0038] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. The scope of the present invention is defined by the claims rather than the above description.

Claims

1. A track-changing low-temperature sealed door, comprising a door body (4), wherein the door body (4) is used to block an opening on a wall (1), and is characterized in that: The sealed door further comprises a frame (3) fixedly arranged relative to the wall (1), a lifting body (6) being mounted on the frame (3) in a sliding manner; the lifting body (6) being connected to the door body (4) via a connecting rod (7); The frame (3) is provided with a track (3-2), the track (3-2) comprising a vertical section and a curved end whose head end is connected to the lower end of the vertical section, and whose tail end faces the wall (1); A pin shaft (8) matching with the track (3-2) is installed on the door body (4).

2. The track-changing low-temperature sealed door according to claim 1, characterized in that: The connecting rods (7) are provided in two or more groups, one end of each group of connecting rods (7) is rotatably connected to the lifting body (6), and the other end is rotatably connected to the door body (4); the door body (4), the connecting rods (7) and the lifting body (6) form a spatial parallelogram mechanism.

3. The track-changing low-temperature sealed door according to claim 1, characterized in that: The sealing door further comprises a lifting drive device (5) for driving the lifting body (6) to move up and down.

4. The track-changing low-temperature sealed door according to claim 3, characterized in that: The lifting drive device (5) comprises a motor (5-1), a gear (5-2) and a rack (5-3); the motor (5-1) is used to drive the gear (5-2) to rotate, the gear (5-2) and the rack (5-3) are meshed, and the rack (5-3) is connected to the lifting body (6).

5. The track-changing low-temperature sealed door according to claim 4, characterized in that: A bracket (5-5) is mounted on the frame body (3), and the motor (5-1) and the gear (5-2) are mounted on the bracket (5-5).

6. The track-changing low-temperature sealed door according to claim 5, characterized in that: A roller (5-4) is also mounted on the bracket (5-5); one side of the rack (5-3) is meshed with the gear (5-2) and the other side is matched with the roller (5-4).

7. The track-changing low-temperature sealed door according to any one of claims 1 to 6, characterized in that: The lifting body (6) is provided with a sliding block (6-1), and the sliding block (6-1) cooperates with a vertical guide rail (3-1) provided on the frame body (3).

8. The track-changing low-temperature sealed door according to any one of claims 1 to 6, characterized in that: A soft curtain (9) is also installed at the bottom of the door body (4), and the lower end of the soft curtain (9) is used to contact the conveyor belt (2) passing through the opening.

9. The track-changing low-temperature sealed door according to any one of claims 1 to 6, characterized in that: It also comprises a door frame (10) installed in the opening, wherein a sealing strip is provided at the joint between the door frame (10) and the door body (4).

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