Isolation door with mistaken opening prevention structure

By designing an anti-miss opening and supporting locking mechanism in the isolation door, the problems of possible miss opening and shortening of the cylinder service life are solved, which improves safety and extends the service life of the cylinder.

CN222297127UActive Publication Date: 2025-01-03JIANGSU SAI SHIDA AUTOMATIC CONTROL VALVE CO LTD
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Patent Information

Application Number
CN202421194694.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-01-03
Estimated Expiration
2034-05-29

AI Technical Summary

Technical Problem

The existing isolation doors may be opened incorrectly due to operating errors, equipment failures or human damage during use, which will affect the safety of maintenance personnel, and the service life of the cylinder will be shortened after long-term use and pose safety hazards.

Method used

An isolation door with an anti-missible opening structure is designed, and an anti-missible opening mechanism and a support locking mechanism are adopted. The anti-missible opening mechanism consists of a movable groove, a movable rod, a movable plate, a cleat plate, a cleat plate, a cleat groove, a guide groove, and a tightening plate. and a tightening spring. The support locking mechanism consists of a mounting frame, a slider, a return spring, a locking plate and a locking groove. Through these structures, locking and supporting the isolation door body is achieved to prevent misopening and extend the service life of the cylinder. .

Benefits of technology

It effectively prevents the isolation door main body from being opened by accident in an accident, improves safety, extends the service life of the cylinder, and reduces safety hazards.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an isolation door with a mistaken opening prevention structure, which relates to the technical field of isolation doors, and comprises a mounting frame, an isolation door main body, an air cylinder and connecting blocks, the isolation door main body is arranged on the inner side of the mounting frame, and the connecting blocks are arranged on the two sides of the isolation door main body. And air cylinders connected with the connecting blocks are mounted on the mounting plates on the two sides of the mounting frame. According to the utility model, the mistaken opening prevention mechanism is arranged, and the movable plate is in sliding connection with the mounting frame and the isolation door main body through the guide grooves, so that the clamping plates at the two ends of the movable plate can slide along the guide grooves by pushing the movable rods inwards during maintenance, and the abutting plates and the abutting springs are extruded; when the clamping plate is aligned with the clamping groove, the movable rod can be rotated to enable the clamping plate to be clamped into the clamping groove, so that the isolation door main body in a closed state is locked, the isolation door main body is prevented from being opened by mistake under an unexpected condition, the safety of the isolation door main body in the using process is improved, and the safety of a maintainer is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of isolation doors, in particular to an isolation door with an anti-misopening structure. Background Art

[0002] Zero leakage rate isolation doors are mainly used in direct-blowing coal mills in thermal power plants to quickly isolate hot air after the coal mill is shut down. This type of isolation door is usually composed of an installation frame, an isolation door body and a cylinder. It has the characteristics of simple structure, flexible operation and good sealing. It can ensure that hot air will not enter the coal mill when the coal mill is shut down for maintenance, thereby ensuring the safety of maintenance personnel.

[0003] At present, the existing isolation door is opened and closed by a cylinder to control the isolation door body. After the isolation door body is closed, the isolation door body may sometimes be opened by mistake due to operational errors, equipment failures or human damage, resulting in serious accidents and affecting the safety of maintenance personnel. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an insulating door with an anti-misopening structure to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an isolation door with an anti-misopening structure, comprising an installation frame, an isolation door body, a cylinder and a connecting block, the isolation door body is arranged on the inner side of the installation frame, connecting blocks are arranged on both sides of the isolation door body, and cylinders connected to the connecting blocks are installed on the installation plates on both sides of the installation frame.

[0006] Preferably, the interior of the installation frame is provided with an anti-misopening mechanism extending to the interior of the isolation door body, and the anti-misopening mechanism consists of a movable groove, a movable rod, a movable plate, a clamping plate, a clamping groove, a guide groove, a clamping plate and a clamping spring.

[0007] Preferably, a movable groove is provided at the bottom end of one side of the installation frame, a movable rod is slidably connected inside the movable groove, the movable rod is configured as a "T"-shaped structure, and guide grooves are provided on the sides of the installation frame and the isolation door body that are close to each other.

[0008] Preferably, a clamping groove communicating with the guide groove is opened on one side of the installation frame, a movable plate is welded to one side of the movable rod, clamping plates are welded to both ends of the movable plate, and the movable plate and the installation frame form a clamping structure through the clamping plate and the clamping groove.

[0009] Preferably, a clamping plate is slidably connected inside the installation frame, a clamping spring is welded between the clamping plate and the installation frame, and the clamping plate and the installation frame form an elastic structure through the clamping spring.

[0010] Preferably, a support locking mechanism extending into the interior of the isolation door body is provided at the top of one side of the installation frame, and the support locking mechanism is composed of a mounting frame, a mounting frame, a slide plate, a return spring, a locking plate and a locking groove. A locking groove is provided on one side of the isolation door body, and a locking plate is slidably connected to one side of the interior of the installation frame close to the locking groove.

[0011] Preferably, a slide plate is slidably connected to one side of the locking plate inside the installation frame, a return spring is welded between the locking plate and the slide plate, a mounting frame is welded to the top of one side of the installation frame, an electric push rod connected to the slide plate is installed inside the mounting frame, and the locking plate and the slide plate form an elastic structure through the return spring.

[0012] In summary, the utility model mainly has the following beneficial effects:

[0013] The existing isolation door may be opened by mistake due to operating errors, equipment failures or human damage, which may lead to serious accidents and affect the safety of maintenance personnel. The utility model is provided with an anti-misopening mechanism. Since the movable plate, the mounting frame and the isolation door body are all slidably connected through the guide groove, during maintenance, the movable rod can be pushed inward to make the clamping plates at both ends of the movable plate slide along the guide groove, and the clamping plate and the clamping spring can be squeezed. When the clamping plate is aligned with the clamping groove, the movable rod can be rotated to make the clamping plate clamped into the clamping groove, thereby locking the isolation door body in the closed state, thereby preventing the isolation door body from being opened by mistake in an unexpected situation, improving the safety of the isolation door body during use, and thus ensuring the safety of maintenance personnel;

[0014] The existing isolation door is opened and closed by a cylinder. After opening, the cylinder will be subjected to downward gravity, and long-term use will shorten its service life. At the same time, there are certain safety hazards. The utility model is provided with a support locking mechanism. Since the locking plate and the slide plate are elastically connected by a return spring, and an inclined surface is provided at one end of the locking plate close to the isolation door body, when the isolation door body moves up and opens, the locking plate will be stuck in the locking groove under the action of the return spring, thereby achieving support and locking of the isolation door body after opening, so that the downward gravity on the cylinder can be greatly reduced, and the service life of the cylinder can be extended to a certain extent. At the same time, the safety is improved to prevent the safety hazards that exist when the cylinder structure force is not strong. When the isolation door body moves downward, the locking plate is controlled to disengage from the locking groove by the contraction of the electric push rod, so that the closing of the isolation door body can be prevented from being hindered. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial side cutaway view of the utility model;

[0017] Figure 3 It is a partial top view cutaway diagram of the utility model;

[0018] Figure 4 It is a partial side cutaway view of the support locking mechanism of the utility model;

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the utility model.

[0020] In the figure: 1. installation frame; 2. isolation door body; 3. cylinder; 4. connection block; 5. anti-misopening mechanism; 501. movable groove; 502. movable rod; 503. movable plate; 504. clamping plate; 505. clamping groove; 506. guide groove; 507. clamping plate; 508. clamping spring; 6. support locking mechanism; 601. installation frame; 602. electric push rod; 603. slide plate; 604. return spring; 605. locking plate; 606. locking groove. DETAILED DESCRIPTION

[0021] 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. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0022] The following describes an embodiment of the utility model based on its overall structure.

[0023] An isolation door with an anti-misopening structure, such as Figure 1 As shown, it includes a mounting frame 1, an isolating door body 2, a cylinder 3 and a connecting block 4. The isolating door body 2 is arranged on the inner side of the mounting frame 1, and connecting blocks 4 are arranged on both sides of the isolating door body 2. Cylinders 3 connected to the connecting blocks 4 are installed on the mounting plates on both sides of the mounting frame 1. When the cylinder 3 is started, the cylinder 3 drives the isolating door body 2 to move vertically up and down, thereby facilitating the opening and closing of the isolating door body 2 and quickly isolating the hot air.

[0024] See also Figure 1 , Figure 2 and Figure 3It can be known that the interior of the installation frame 1 is provided with an anti-misopening mechanism 5 extending to the interior of the isolation door body 2, and the anti-misopening mechanism 5 is composed of a movable groove 501, a movable rod 502, a movable plate 503, a clamping plate 504, a clamping groove 505, a guide groove 506, a clamping plate 507 and a clamping spring 508. A movable groove 501 is provided at the bottom end of one side of the installation frame 1, and a movable rod 502 is slidably connected inside the movable groove 501. The movable rod 502 is set as a "T"-shaped structure. The guide groove 506 is provided on the side where the installation frame 1 and the isolation door body 2 are close to each other, and a clamping groove 505 communicating with the guide groove 506 is provided on one side of the installation frame 1. A movable plate 503 is welded to one side of the movable rod 502, and clamping plates 504 are welded to both ends of the movable plate 503. The movable plate 503 and the installation frame 1 form a clamping structure through the clamping plate 504 and the clamping groove 505.

[0025] See also Figure 1 , Figure 2 and Figure 3 It can be seen that since the movable plate 503 is slidably connected to the installation frame 1 and the isolation door body 2 through the guide groove 506, during maintenance, the movable rod 502 can be pushed inward to make the clamping plates 504 at both ends of the movable plate 503 slide along the guide groove 506 and squeeze the clamping plate 507 and the clamping spring 508. When the clamping plate 504 is aligned with the clamping groove 505, the movable rod 502 can be rotated to make the clamping plate 504 clamped into the clamping groove 505, thereby locking the isolation door body 2 in the closed state, thereby preventing the isolation door body 2 from being opened by mistake in an unexpected situation, improving the safety of the isolation door body 2 during use, and thus ensuring the safety of maintenance personnel.

[0026] See also Figure 1 , Figure 4 and Figure 5 It can be known that a support locking mechanism 6 extending to the interior of the isolation door body 2 is provided at the top of one side of the installation frame 1, and the support locking mechanism 6 is composed of a mounting frame 601, a mounting frame 601, a slide plate 603, a return spring 604, a locking plate 605 and a locking groove 606. A locking groove 606 is provided on one side of the isolation door body 2, and a locking plate 605 is slidably connected to a side of the interior of the installation frame 1 close to the locking groove 606. A slide plate 603 is slidably connected to a side of the locking plate 605 in the interior of the installation frame 1, and a return spring 604 is welded between the locking plate 605 and the slide plate 603. A mounting frame 601 is welded to the top of one side of the installation frame 1, and an electric push rod 602 connected to the slide plate 603 is installed inside the mounting frame 601, and the locking plate 605 and the slide plate 603 form an elastic structure through the return spring 604.

[0027] See also Figure 1 , Figure 4 and Figure 5 It can be seen that since the locking plate 605 and the slide plate 603 are elastically connected by the return spring 604, and the locking plate 605 is provided with an inclined surface at one end close to the isolation door body 2, when the isolation door body 2 moves up and opens, the locking plate 605 will be stuck in the locking groove 606 under the action of the return spring 604, thereby realizing the support and locking of the isolation door body 2 after opening, so that the downward gravity on the cylinder 3 can be greatly reduced, and the service life of the cylinder 3 can be extended to a certain extent. At the same time, the safety is improved to prevent the safety hazards that exist when the structural force of the cylinder 3 is not strong. When the isolation door body 2 moves down, the locking plate 605 is disengaged from the locking groove 606 by the contraction of the electric push rod 602, so that the closing of the isolation door body 2 can be prevented from being hindered.

[0028] See also Figure 2 and Figure 3 It can be seen that the installation frame 1 is internally slidably connected with a clamping plate 507, and a clamping spring 508 is welded between the clamping plate 507 and the installation frame 1. The clamping plate 507 and the installation frame 1 form an elastic structure through the clamping spring 508. When the clamping plate 504 is engaged with the clamping slot 505, the firmness of the engagement between the clamping plate 504 and the clamping slot 505 can be improved through the cooperation of the clamping plate 507 and the clamping spring 508.

[0029] The working principle of the utility model is as follows: when the isolation door with the anti-misopening structure is used, the isolation door body 2 is controlled to move down and close by the cylinder 3. At this time, the movable rod 502 can be pushed inward to make the clamping plates 504 at both ends of the movable plate 503 slide along the guide groove 506, and squeeze the clamping plate 507 and the clamping spring 508. When the clamping plate 504 is aligned with the clamping groove 505, the movable rod 502 can be rotated to make the clamping plate 504 clamped into the clamping groove 505, thereby realizing the locking of the isolation door body 2 in the closed state, thereby preventing the isolation door body 2 from being opened by mistake in an unexpected situation, and improving the safety of the isolation door body 2 during use. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0030] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. An insulating door with an anti-misopening structure, comprising a mounting frame (1), an insulating door body (2), a cylinder (3) and a connecting block (4), characterized in that: An isolation door body (2) is arranged on the inner side of the installation frame (1), connection blocks (4) are arranged on both sides of the isolation door body (2), and cylinders (3) connected to the connection blocks (4) are installed on the installation plates on both sides of the installation frame (1).

2. The insulating door with an anti-misopening structure according to claim 1, characterized in that: An anti-mis-opening mechanism (5) extending into the interior of the isolation door body (2) is arranged inside the installation frame (1); the anti-mis-opening mechanism (5) comprises a movable groove (501), a movable rod (502), a movable plate (503), a clamping plate (504), a clamping groove (505), a guide groove (506), a clamping plate (507) and a clamping spring (508).

3. The insulating door with an anti-misopening structure according to claim 2, characterized in that: A movable groove (501) is provided at the bottom end of one side of the installation frame (1), a movable rod (502) is slidably connected inside the movable groove (501), and the movable rod (502) is arranged in a "T"-shaped structure. A guide groove (506) is provided on the side where the installation frame (1) and the isolation door body (2) are close to each other.

4. The insulating door with an anti-misopening structure according to claim 3, characterized in that: A clamping groove (505) communicating with the guide groove (506) is provided on one side of the installation frame (1); a movable plate (503) is welded to one side of the movable rod (502); clamping plates (504) are welded to both ends of the movable plate (503); and the movable plate (503) and the installation frame (1) form a clamping structure via the clamping plates (504) and the clamping groove (505).

5. The insulating door with an anti-misopening structure according to claim 4, characterized in that: A clamping plate (507) is slidably connected inside the installation frame (1), a clamping spring (508) is welded between the clamping plate (507) and the installation frame (1), and the clamping plate (507) and the installation frame (1) form an elastic structure via the clamping spring (508).

6. The insulating door with an anti-misopening structure according to claim 1, characterized in that: A support locking mechanism (6) extending into the interior of the isolation door body (2) is provided at the top end of one side of the installation frame (1); the support locking mechanism (6) is composed of a mounting frame (601), a mounting frame (601), a slide plate (603), a return spring (604), a locking plate (605) and a locking groove (606); a locking groove (606) is provided on one side of the isolation door body (2); and a locking plate (605) is slidably connected to a side of the interior of the installation frame (1) close to the locking groove (606).

7. The insulating door with an anti-misopening structure according to claim 6, characterized in that: A slide plate (603) is slidably connected to one side of the locking plate (605) inside the installation frame (1); a return spring (604) is welded between the locking plate (605) and the slide plate (603); a mounting frame (601) is welded to the top end of one side of the installation frame (1); an electric push rod (602) connected to the slide plate (603) is installed inside the mounting frame (601); and the locking plate (605) and the slide plate (603) form an elastic structure via the return spring (604).