Pneumatic lift-and-press door system

Abstract

The utility model discloses a kind of pneumatic lifting type compression door systems, including portal and compression door, the left and right sides of the front of portal are fixedly installed with guide rail, two the guide rail are slidably installed with slider, the two sides of the compression door are respectively connected with adjacent slider, the left and right sides of the front of portal are hingedly connected with pneumatic cylinder, the top of pneumatic cylinder is rotatably connected with compression door, the top and bottom of pneumatic cylinder are installed with pilot valve and throttle valve.The utility model, whole structure is reliable and stable, simple and convenient to operate, compression effect is achieved using mechanical structure, avoid adding other electrical equipment to operate, compression door closing operation is more convenient, and reduce control cost and failure rate;Compression door falling is buffered and protected and limited, while improving the sealing property after compression door closing.

Description

Technical Field

[0001] This utility model relates to the field of lifting and pressing door technology, and more specifically, to a pneumatic lifting and pressing door system. Background Technology

[0002] Lift-type clamping doors are a type of special door commonly found in industrial settings, particularly in environments with high requirements for sealing, cleanliness, or security. They combine vertical lifting and peripheral clamping actions to achieve excellent sealing performance.

[0003] Because the closing action of a traditional lifting and pressing door is divided into two actions, namely lifting and pressing, it has two drive structures. This makes the action control cumbersome, increases the control cost and failure rate, and the two drive structures also reduce the closing efficiency and increase the difficulty of operation. Utility Model Content

[0004] In view of the problems existing in the prior art, the purpose of this utility model is to provide a pneumatic lifting and pressing door system to solve the problems in the background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution.

[0006] A pneumatic lifting and pressing door system includes a gantry and a pressing door. Guide rails are fixedly installed on both the left and right sides of the front of the gantry, and sliders are slidably installed on both guide rails. The two sides of the pressing door are respectively connected to the adjacent sliders. Cylinders are hinged to both the left and right sides of the front of the gantry. The top of the cylinder is rotatably connected to the pressing door. A pilot valve and a throttle valve are installed at the top and bottom of the cylinder.

[0007] As a further description of the above technical solution: A connecting plate is fixedly installed between the two sliders on the same side. Two connecting rods are fixedly installed on the connecting plate. Two elliptical grooves are opened on both the left and right sides of the pressing door. The connecting rods extend to the inner wall of the adjacent elliptical grooves and make smooth contact with the inner wall of the elliptical grooves.

[0008] As a further description of the above technical solution: A hydraulic buffer rod is fixedly installed at the bottom of the gantry, and the top of the hydraulic buffer rod contacts the bottom of the connecting plate.

[0009] As a further description of the above technical solution: The gantry is fitted with a limiting screw, and two adjusting nuts are threaded onto the limiting screw. The two adjusting nuts are located above and below the steel plate on the gantry used to install the limiting screw, respectively.

[0010] As a further description of the above technical solution: Sealing strips are fixedly installed on both the front of the gantry and the back of the pressing door.

[0011] Compared with existing technologies, the advantages of this utility model are: (1) In this scheme, the fully pneumatic lifting door is simple and convenient to operate, the overall structure is reliable and stable, and the mechanical structure is used to achieve the pressing effect, avoiding the need to add other electrical equipment for operation. The pressing door closing operation is more convenient, and the control cost and failure rate are reduced.

[0012] (2) In this scheme, the hydraulic buffer rod buffers the sliding block and the connecting plate to reduce the descent speed and impact, thereby protecting the pressing door and preventing it from being damaged or deformed due to excessive impact force. The limit screw protrudes from the steel plate and, after contacting the bottom of the pressing door with the top of the limit screw, it can limit the pressing door. Through the door frame and the two sealing strips on the pressing door, a double-layer sealing structure can be formed after the pressing door is closed, so as to improve the sealing performance of the pressing door after it is closed. Attached Figure Description

[0013] Figure 1 This is a front view structural diagram of the present utility model; Figure 2 This is a schematic diagram of the connection structure between the hydraulic buffer rod and the gantry of this utility model; Figure 3 This utility model Figure 1 Enlarged structural diagram of section A in the middle; Figure 4 This utility model Figure 2 Enlarged structural diagram of section B in the middle; Figure 5 This is a schematic diagram of the installation cross-sectional structure of the sealing strip of this utility model.

[0014] Explanation of the labels in the diagram: 1. Gantry; 2. Pressing door; 3. Guide rail; 4. Slider; 5. Cylinder; 6. Pilot valve; 7. Throttle valve; 8. Connecting plate; 9. Connecting rod; 10. Elliptical groove; 11. Hydraulic buffer rod; 12. Limit screw; 13. Adjusting nut; 14. Sealing strip. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] Please see Figure 1-5In this utility model, a pneumatic lifting and pressing door system includes a door frame 1 and a pressing door 2. Guide rails 3 are fixedly installed on the left and right sides of the front of the door frame 1. Sliding blocks 4 are slidably installed on the two guide rails 3. The two sides of the pressing door 2 are respectively connected to the adjacent sliding blocks 4. Cylinders 5 are hinged on the left and right sides of the front of the door frame 1. The top of the cylinder 5 is rotatably connected to the pressing door 2. A pilot valve 6 and a throttle valve 7 are installed on the top and bottom of the cylinder 5.

[0017] In this invention, cylinder 5 is connected to an air source. By controlling cylinder 5, the pressing door 2 is moved upward. With the help of the central leakage solenoid valve and pilot valve 6, the pressing door 2 can be lowered and stopped at any position, thus achieving the effect of preventing it from falling. The throttle valve 7 adjusts the air intake of cylinder 5, making it easy to adjust the movement of cylinders 5 on both sides to be consistent. During the up and down movement of the pressing door 2, the guide rail 3 and slider 4 play a role in stabilizing the pressing door 2, so as to ensure that the movement trend of the pressing door 2 is generally up and down sliding. The fully pneumatic lifting door is simple and convenient to operate, and the overall structure is reliable and stable.

[0018] Please see Figure 1-4 In this configuration, a connecting plate 8 is fixedly installed between two sliders 4 on the same side, and two connecting rods 9 are fixedly installed on the connecting plate 8. Two elliptical grooves 10 are opened on both the left and right sides of the pressing door 2. The connecting rods 9 extend to the inner wall of the adjacent elliptical grooves 10 and make smooth contact with the inner wall of the elliptical grooves 10.

[0019] In this utility model, the two sliders 4 on the same side are first connected by a connecting plate 8, thereby fixing the distance between the two sliders 4 to ensure that the two sliders 4 on the same side always move synchronously during the up and down sliding process, thus ensuring the stability of the pressing door 2.

[0020] By setting the elliptical groove 10 and the connecting rod 9, the pressing door 2 is not directly connected to the slider 4. After the two sliders 4 slide down into place, since the top of the pressing door 2 is rotatably connected to the top of the cylinder 5, the pressing door 2 is restricted by the connecting rod 9 through the elliptical groove 10. Under the action of its own gravity, the pressing door 2 moves further down and squeezes against the gantry 1, thereby achieving a pressing and sealing effect. This ensures the sealing effect after the pressing door 2 is closed. The pressing effect is achieved by using a clever mechanical structure, avoiding the need to add other electrical equipment for operation. The closing operation of the pressing door 2 is more convenient, and the control cost and failure rate are reduced.

[0021] Please see Figure 1 , 2 4, wherein: a hydraulic buffer rod 11 is fixedly installed at the bottom of the gantry 1, and the top of the hydraulic buffer rod 11 contacts the bottom of the connecting plate 8.

[0022] In this utility model, when the angle iron structure used to install the connecting rod 9 comes into contact with the hydraulic buffer rod 11, it achieves the purpose of buffering the descent speed and impact of the slider 4 and the connecting plate 8, thereby protecting the pressing door 2 and preventing the pressing door 2 from being damaged or deformed due to excessive impact force.

[0023] Please see Figure 1 , 2 4, wherein: the gantry 1 is inserted with a limit screw 12, and the limit screw 12 is threaded with two adjusting nuts 13, which are located above and below the steel plate on the gantry 1 used to install the limit screw 12.

[0024] In this utility model, the limiting screw 12 protrudes from the steel plate and, after the bottom of the pressing door 2 contacts the top of the limiting screw 12, it can limit the pressing door 2. At the same time, it can prevent the pressing door 2 from falling further after the hydraulic buffer rod 11 is damaged.

[0025] Please see Figure 5 In this case, sealing strips 14 are fixedly installed on both the front of the gantry 1 and the back of the pressing door 2.

[0026] In this invention, the two sealing strips 14 on the door frame 1 and the pressing door 2 can form an inner and outer double-layer sealing structure after the pressing door 2 is closed, thereby improving the sealing performance of the pressing door 2 after it is closed.

[0027] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A pneumatic lifting type pressing door system, comprising a door frame (1) and a pressing door (2), characterized in that: Guide rails (3) are fixedly installed on both the left and right sides of the front of the gantry (1). Slider (4) is slidably installed on both guide rails (3). The two sides of the pressing door (2) are respectively connected to the adjacent slider (4). Cylinders (5) are hinged on both the left and right sides of the front of the gantry (1). The top of the cylinder (5) is rotatably connected to the pressing door (2). Pilot valve (6) and throttle valve (7) are installed on the top and bottom of the cylinder (5).

2. The pneumatic lifting and pressing door system according to claim 1, characterized in that: A connecting plate (8) is fixedly installed between the two sliders (4) on the same side. Two connecting rods (9) are fixedly installed on the connecting plate (8). Two elliptical grooves (10) are opened on both the left and right sides of the pressing door (2). The connecting rods (9) extend to the inner wall of the adjacent elliptical grooves (10) and make smooth contact with the inner wall of the elliptical grooves (10).

3. The pneumatic lifting and pressing door system according to claim 1, characterized in that: A hydraulic buffer rod (11) is fixedly installed at the bottom of the gantry (1), and the top of the hydraulic buffer rod (11) contacts the bottom of the connecting plate (8).

4. The pneumatic lifting and pressing door system according to claim 1, characterized in that: The gantry (1) is inserted with a limiting screw (12), and two adjusting nuts (13) are threaded onto the limiting screw (12). The two adjusting nuts (13) are located above and below the steel plate on the gantry (1) for installing the limiting screw (12).

5. A pneumatic lifting and pressing door system according to claim 1, characterized in that: Sealing strips (14) are fixedly installed on the front of the gantry (1) and the back of the pressing door (2).

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