Linkage bulletproof mechanism for air-tight door

Abstract

The linkage bulletproof mechanism comprises a sliding pin shaft, a sliding rod and a plug, the plug is arranged at one end of the sliding rod, and a door frame opening is formed in the position, corresponding to the plug, of a door frame; a first long round hole is formed in the connecting rod, a distance exists between the connecting rod and the inner side wall of the door leaf, the other end of the sliding rod is located between the connecting rod and the door leaf, and the sliding pin shaft is arranged at the other end of the sliding rod. The sliding pin shaft penetrates through the sliding rod and then can enter the first long round hole of the connecting rod, and after the sliding pin shaft enters the first long round hole, the plug can be in linkage with the unlocking action of the locking mechanism. According to the bulletproof mechanism, linkage of the plug and the locking mechanism of the air-tight door is achieved, when the air-tight door is closed, the plug of the bulletproof mechanism is inserted into the opening of the door frame, the door leaf is prevented from being bounced off under the action of the sealing strip, and the follow-up locking action of the locking mechanism is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of protective equipment, and in particular to a linkage anti-bounce opening mechanism for a closed door. Background Art

[0002] Protective sealed doors are usually installed at the entrances and exits of tunnels. Protective sealed doors have door leaves and door frames. In order to achieve the two functions of blocking shock waves and isolating toxic agents, protective sealed doors usually have sealing strips installed on the door leaves to seal the contact parts between the door leaves and the door frames.

[0003] When the protective sealed door is closed, the reaction force of the sealing strip is relatively large, making it difficult for the door leaf to close properly, and thus making it difficult for the protective sealed door to be locked properly.

[0004] Therefore, a linkage anti-bounce opening mechanism for a closed door is needed to prevent the door leaf from being bounced open by a sealing strip when protecting the closed door, and to assist in the locking action of the closed door. Summary of the invention

[0005] The purpose of the present invention is to provide a linkage anti-bounce opening mechanism for a closed door. When the closed door is closed, the anti-bounce opening mechanism can prevent the door leaf of the closed door from bouncing open under the action of a sealing strip, thereby facilitating the locking action of the subsequent locking mechanism. When the closed door is unlocked, the anti-bounce opening mechanism opens accordingly.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A linkage anti-bounce opening mechanism for a closed door, the closed door having a door frame and a door leaf, a locking mechanism being arranged on the inner side wall of the door leaf, the locking mechanism having a connecting rod, characterized in that the anti-bounce opening mechanism comprises a sliding pin, a sliding rod and a plug, wherein the plug is arranged at one end of the sliding rod, and a door frame opening is arranged at a position corresponding to the plug on the door frame; a first oblong hole is arranged on the connecting rod, a distance exists between the connecting rod and the inner side wall of the door leaf, the other end of the sliding rod is located between the connecting rod and the door leaf, the sliding pin is arranged at the other end of the sliding rod, and the sliding pin passes through the The sliding rod can enter the first oblong hole of the connecting rod, and after the sliding pin shaft enters the first oblong hole, the plug can be linked with the unlocking action of the locking mechanism; when the airtight door is closed, the sliding pin shaft enters the oblong hole, and the plug is inserted into the door frame opening; when the airtight door is opened by the locking mechanism, the locking mechanism adjusts the lateral position of the plug through the connecting rod and the sliding pin shaft, so that the plug is moved out of the door frame opening, and when the door leaf leaves the door frame, the sliding pin shaft can automatically move out of the first oblong hole, so that the plug returns to its initial position.

[0008] Furthermore, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, the bulletproof opening mechanism further includes a compression spring and a plug socket. The axis of the sliding pin shaft is perpendicular to the axis of the sliding rod, and the axis of the sliding pin shaft is perpendicular to the inner side wall of the door leaf. The plug socket is a hollow cube structure with one end open. One end of the sliding rod extends into the plug socket from the closed end of the plug socket and is connected to the plug. The plug extends out from the open end of the plug socket, and a bevel surface is provided at the free end of the plug. The compression spring is sleeved on the sliding rod inside the plug socket, and the compression spring can make the plug extend out of the door leaf.

[0009] Furthermore, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, a retaining ring and a cylindrical pin are arranged on the sliding rod outside the closed end of the plug socket. The retaining ring is sleeved on the sliding rod, and the cylindrical pin passes through the retaining ring and the sliding rod. The cylindrical pin is used to limit the lateral displacement of the sliding rod.

[0010] Furthermore, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, the bulletproof opening mechanism further includes a reset leaf spring. One end of the reset leaf spring is connected to the door leaf through a plurality of hexagon head bolts. A second oblong hole is horizontally arranged at the other end of the reset leaf spring. A nut is arranged at one end of the sliding pin shaft. The other end of the sliding pin shaft passes through the second oblong hole and the sliding rod in sequence and can enter the first oblong hole of the connecting rod. A limiting block is arranged on the sliding pin shaft between the sliding rod and the reset leaf spring. The diameter of the limiting block is larger than the width of the second oblong hole. The sliding rod can move along the length direction of the second oblong hole in the second oblong hole. The other end of the reset leaf spring is attached to the inner wall of the door leaf, and the other end of the reset leaf spring can move in a direction away from the inner side wall of the door leaf and push the other end of the sliding pin shaft into the first oblong hole. The first oblong hole is vertically arranged.

[0011] Furthermore, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, the bulletproof opening mechanism further includes a reset lever, a first pin shaft and a lever support. The axis of the reset lever is parallel to the axis of the sliding rod. One end of the reset lever extends outside the door leaf, and the other end of the reset lever is connected to the other end of the reset leaf spring. The lever support is arranged on the door leaf. The middle part of the reset lever is located inside the lever support. One end of the first pin shaft passes through the lever support and the reset lever and is fixed by a first split pin. The axis of the first pin shaft is perpendicular to the axis of the reset lever. The reset lever can rotate around the first pin shaft. The lever support is connected to the door leaf by screws.

[0012] Further, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, two reset levers are provided, and the two reset levers are respectively located above and below the plug; the other ends of the reset plate springs extend to the upper and lower sides of the reset plate springs respectively to form connecting parts, and the other ends of the two reset levers are respectively connected to the two connecting parts of the reset plate springs.

[0013] Further, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, the other end of the reset lever is hinged to the connecting part through a second pin shaft, and a second split pin is arranged on the second pin shaft.

[0014] Further, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, a notch is provided at the position of the door frame corresponding to the reset lever. When the door leaf is closed, one end of the reset lever can enter the notch; after one end of the reset lever contacts one side wall of the notch, the reset lever can rotate with the first pin shaft as the axis.

[0015] Further, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, an adjusting screw is arranged at one end of the reset lever. By adjusting the length of the adjusting screw extending out of the reset lever, the moving distance length of the other end of the reset lever can be adjusted.

[0016] Further, in the above-mentioned linkage bulletproof opening mechanism for the airtight door, one side wall of the plug socket is connected to the door leaf through a fixing bolt, and a spring washer is arranged between the fixing bolt and one side wall of the plug socket.

[0017] Analysis shows that the present invention discloses a linkage bulletproof opening mechanism for an airtight door. This bulletproof opening mechanism utilizes the reset lever, the reset plate spring and their interaction with the door frame to adjust the lateral position of the sliding pin shaft, realizing the linkage between the plug and the locking mechanism of the airtight door. When the airtight door is closed, the plug of this bulletproof opening mechanism is inserted into the opening of the door frame to prevent the door leaf from bouncing open under the action of the sealing strip, facilitating the locking action of the subsequent locking mechanism. By compressing the spring and the lateral movement of the connecting rod of the locking mechanism, the lateral position of the plug is adjusted to realize the linkage opening and closing of the plug and the locking mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. Among them:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present invention.

[0020] Figure 2Schematic diagram of the linkage opening of the bulletproof opening mechanism and the locking mechanism according to an embodiment of the present invention.

[0021] Figure 3 is Figure 2 Schematic diagram of the A-A direction structure of.

[0022] Figure 4 is Figure 2 Schematic diagram of the B-B direction structure of.

[0023] Figure 5 Schematic diagram of the sliding pin shaft according to an embodiment of the present invention.

[0024] Explanation of reference numerals: 1 plug; 2 plug socket; 3 retaining ring; 4 sliding pin shaft; 5 return plate spring; 6 return lever; 7 lever support; 8 first pin shaft; 9 first split pin; 10 fixing bolt; 11 spring washer; 12 screw; 13 compression spring; 14 cylindrical pin; 15 second split pin; 16 second pin shaft; 17 nut; 18 hexagon head bolt; 19 adjusting screw; 20 door frame; 21 door leaf; 22 connecting rod; 23 first oblong hole; 24 second oblong hole; 25 limit block; 26 notch; 27 door frame opening; 28 sliding rod. Detailed implementation manners

[0025] The present invention will be described in detail below with reference to the drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present invention rather than limitation of the present invention. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present invention without departing from the scope or spirit of the present invention. For example, features shown or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is desirable that the present invention includes such modifications and variations that fall within the scope of the appended claims and their equivalents.

[0026] In the description of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention rather than requiring the present invention to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention. The terms "connected", "connected", and "arranged" used in the present invention should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component; it can be a wired connection, a radio connection, or a wireless communication signal connection. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numbers and letter labels to refer to features in the drawings. Like or similar labels in the drawings and description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first", "second", "third", etc. are used interchangeably to distinguish one component from another and are not intended to indicate the location or importance of individual components.

[0028] like Figures 1 to 5 As shown, according to an embodiment of the present invention, a linkage anti-bounce opening mechanism for a closed door is provided. The closed door has a door frame 20 and a door leaf 21. A locking mechanism is arranged on the inner side wall of the door leaf 21. The locking mechanism has a vertically arranged connecting rod 22. The anti-bounce opening mechanism is arranged in the middle of the door leaf 21. Figure 1 As shown, the anti-bounce mechanism includes a sliding pin 4, a sliding rod 28 and a plug 1, wherein Figure 3 As shown, the plug 1 is arranged at one end of the sliding rod 28, and a door frame opening 27 is arranged at a position corresponding to the plug 1 on the door frame 20; a first oblong hole 23 is arranged on the connecting rod 22, and there is a distance between the connecting rod 22 and the inner wall of the door leaf 21, and the other end of the sliding rod 28 is located between the connecting rod 22 and the door leaf 21, and the sliding pin 4 is arranged at the other end of the sliding rod 28. After the sliding pin 4 passes through the sliding rod 28, it can enter the first oblong hole 23 of the connecting rod 22. After the sliding pin 4 enters the first oblong hole 23, the plug 1 can be linked to the unlocking action of the locking mechanism; the closed door When closing, the sliding pin 4 enters the oblong hole and the plug 1 is inserted into the door frame opening 27 to prevent the door leaf 21 from being bounced open by the sealing strip, which is convenient for the subsequent locking action of the locking mechanism and ensures that the locking mechanism is locked in place; when the closed door is opened by the locking mechanism, the locking mechanism adjusts the lateral position of the plug 1 through the connecting rod 22 and the sliding pin 4, so that the plug 1 is moved out of the door frame opening 27, thereby realizing the linkage between the plug 1 and the locking mechanism. When the door leaf 21 leaves the door frame 20, the sliding pin 4 can automatically move out of the first oblong hole 23, so that the plug 1 can return to its initial position.

[0029] Furthermore, if Figure 3As shown in the figure, the bulletproof opening mechanism further includes a compression spring 13 and a plug socket 2. The axis of the sliding pin shaft 4 is perpendicular to the axis of the sliding rod 28, and the axis of the sliding pin shaft 4 is perpendicular to the inner side wall of the door leaf 21. The plug socket 2 is a hollow cube structure with one end open. A hole for the sliding rod 28 to pass through is provided at the closed end of the plug socket 2. One end of the sliding rod 28 extends into the plug socket 2 from the closed end of the plug socket 2 and is connected to the plug 1. The plug 1 extends out from the open end of the plug socket 2, and a bevel is provided at the free end of the plug 1. A compression spring 13 is sleeved on the sliding rod 28 inside the plug socket 2, and the elastic force of the compression spring 13 can make the plug 1 extend out of the door leaf 21. When the door leaf 21 is closed, after the plug 1 contacts the door frame 20, the plug 1 moves into the plug socket 2. When the plug 1 moves to the position of the door frame opening 27, under the action of the compression spring 13, the plug 1 enters the door frame opening 27, so that the door leaf 21 is in a locked state, preventing the door leaf 21 from bouncing open under the action of the sealing strip, which is convenient for the subsequent locking action of the locking mechanism.

[0030] Further, a retaining ring 3 and a cylindrical pin 14 are provided on the sliding rod 28 outside the closed end of the plug socket 2. The retaining ring 3 is sleeved on the sliding rod 28, and the cylindrical pin 14 passes through the retaining ring 3 and the sliding rod 28. The retaining ring 3 and the cylindrical pin 14 are used to limit the lateral displacement of the sliding rod 28, and thus limit the length of the plug 1 extending out of the door leaf 21.

[0031] Further, the bulletproof opening mechanism further includes a reset leaf spring 5. The reset leaf spring 5 has an elastic force. One end of the reset leaf spring 5 is connected to the door leaf 21 through a plurality of hexagon head bolts 18. A second oblong hole 24 is horizontally provided at the other end of the reset leaf spring 5. One end of the sliding pin shaft 4 is provided with a nut 17. The nut 17 is a thin hexagon nut. The other end of the sliding pin shaft 4 can enter the first oblong hole 23 of the connecting rod 22 after passing through the second oblong hole 24 of the reset leaf spring 5 and the sliding rod 28 in sequence, as Figure 5 shown. A limit block 25 is provided on the sliding pin shaft 4 between the sliding rod 28 and the reset leaf spring 5. The diameter of the limit block 25 is larger than the width of the second oblong hole 24. The limit block 25 can prevent the sliding pin shaft 4 from disengaging from the second oblong hole 24. The sliding rod 28 can move along the length direction of the second oblong hole 24 in the second oblong hole 24. The other end of the reset leaf spring 5 is attached to the inner wall of the door leaf 21, and the other end of the reset leaf spring 5 can move in a direction away from the inner side wall of the door leaf 21 (the other end of the reset leaf spring 5 warps up) and push the other end of the sliding pin shaft 4 into the first oblong hole 23. The first oblong hole 23 is vertically provided. When the locking mechanism performs a locking action, the locking mechanism drives the connecting rod 22 to move horizontally and vertically. The setting of the first oblong hole 23 can ensure that while the connecting rod 22 drives the sliding rod 28 to move horizontally through the sliding pin shaft 4, it does not affect the vertical movement of the connecting rod 22.

[0032] Further, asFigure 4 As shown in Figure 4 , the bulletproof unlocking mechanism further includes a reset lever 6, a first pin shaft 8 and a lever support 7. The axis of the reset lever 6 is parallel to the axis of the sliding rod 28. One end of the reset lever 6 extends outside the door leaf 21, and the other end of the reset lever 6 is connected to the other end of the reset plate spring 5. The lever support 7 is arranged on the door leaf 21. The middle part of the reset lever 6 is located inside the lever support 7. One end of the first pin shaft 8 passes through the lever support 7 and the reset lever 6 and is fixed by a first split pin 9. The axis of the first pin shaft 8 is perpendicular to the axis of the reset lever 6. The reset lever 6 can rotate around the first pin shaft 8. The rotation of the reset lever 6 can make the other end of the reset lever 6 move away from the door leaf 21. The other end of the reset lever 6 can push the other end of the reset plate spring 5 away from the inner side wall of the door leaf 21, and push the other end of the sliding pin shaft 4 into the first long circular hole 23, thereby realizing the linkage between the bulletproof unlocking mechanism and the locking mechanism. The lever support 7 is connected to the door leaf 21 by screws 12.

[0033] Furthermore, there are two reset levers 6, which are respectively located above and below the plug 1. The other end of the reset plate spring 5 extends to the upper and lower sides of the reset plate spring 5 respectively to form two connecting parts, and the other ends of the two reset levers 6 are respectively connected to the two connecting parts of the reset plate spring 5.

[0034] Furthermore, the other end of the reset lever 6 is hinged to the connecting part through a second pin shaft 16, and a second split pin 15 is arranged on the second pin shaft 16.

[0035] Furthermore, a notch 26 is arranged at the position of the door frame 20 corresponding to the reset lever 6. When the door leaf 21 is closed, one end of the reset lever 6 can enter the notch 26. After one end of the reset lever 6 contacts one side wall of the notch 26, the reset lever 6 can rotate around the first pin shaft 8, thereby making the other end of the reset lever 6 move away from the inner side wall of the door leaf 21.

[0036] Furthermore, an adjusting screw 19 is arranged at one end of the reset lever 6. When the door leaf 21 is closed, the adjusting screw 19 abuts against one side wall of the notch 26. By adjusting the length of the adjusting screw 19 extending out of the reset lever 6, the moving distance length of the other end of the reset lever 6 can be adjusted.

[0037] Furthermore, one side wall of the plug base 2 is connected to the door leaf 21 by a fixing bolt 10, and a spring washer 11 is arranged between the fixing bolt 10 and one side wall of the plug base 2.

[0038] When closing the door, the inclined surface of the plug 1 contacts the door frame 20, the compression spring 13 of the plug 1 is compressed, the plug 1 moves into the plug socket 2, and after the plug 1 reaches the opening 27 of the door frame, under the action of the compression spring 13, the plug 1 is inserted into the opening 27 of the door frame, clamping the door leaf 21 to prevent the door leaf 21 from bouncing open under the action of the sealing strip. At this time, one end of the reset lever 6 enters the notch 26 of the door frame 20 and contacts one side wall of the notch 26. As the door leaf 21 moves, the reset lever 6 rotates around the first pin shaft 8, and the other end of the reset lever 6 presses the other end of the reset plate spring 5 to tilt up, so that the sliding pin shaft 4 enters the first long circular hole 23 of the connecting rod 22 of the locking mechanism.

[0039] When opening the door, as Figure 2 shown, the connecting rod 22 of the locking mechanism moves to the upper left side, opening the lock head of the locking mechanism, and at the same time driving the plug 1 away from the door frame 20, and the door leaf 21 can be smoothly unlocked and opened. As the door leaf 21 opens, the reset lever 6 leaves the door frame 20, and under the pressure of the reset plate spring 5, the reset lever 6 rotates, and the other end of the reset plate spring 5 returns to the state of closely adhering to the door leaf 21, and at the same time drives the sliding pin shaft 4 away from the first long circular hole 23. The plug 1 returns to its original position under the action of the compression spring 13, preparing for the next door closing.

[0040] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0041] 1. By using the reset lever 6, the reset plate spring 5 and their interaction with the door frame 20, the lateral position of the sliding pin shaft 4 is adjusted to realize the linkage between the plug 1 and the locking mechanism of the sealed door. When the sealed door is closed, the plug 1 of the bulletproof opening mechanism is inserted into the opening 27 of the door frame to prevent the door leaf 21 from bouncing open under the action of the sealing strip, facilitating the subsequent locking action of the locking mechanism.

[0042] 2. By the lateral movement of the compression spring 13 and the connecting rod 22 of the locking mechanism, the lateral position of the plug 1 is adjusted to realize the linkage opening and closing of the plug 1 and the locking mechanism.

[0043] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A linkage anti-bounce opening mechanism for a closed door, the closed door having a door frame and a door leaf, a locking mechanism being arranged on the inner side wall of the door leaf, the locking mechanism having a connecting rod, characterized in that: The anti-bounce mechanism includes a sliding pin, a sliding rod and a plug, wherein: The plug is arranged at one end of the sliding rod, and a door frame opening is arranged at a position on the door frame corresponding to the plug; The connecting rod is provided with a first oblong hole, there is a distance between the connecting rod and the inner side wall of the door leaf, the other end of the sliding rod is located between the connecting rod and the door leaf, the sliding pin is provided at the other end of the sliding rod, the sliding pin can enter the first oblong hole of the connecting rod after passing through the sliding rod, and after the sliding pin enters the first oblong hole, the plug can be linked with the unlocking action of the locking mechanism; When the airtight door is closed, the sliding pin shaft enters the oblong hole, and the plug is inserted into the door frame opening; When the locking mechanism is used to open the closed door, the locking mechanism adjusts the lateral position of the plug through the connecting rod and the sliding pin shaft, so that the plug moves out of the door frame opening. When the door leaf leaves the door frame, the sliding pin shaft can automatically move out of the first oblong hole, so that the plug returns to its initial position.

2. The linkage anti-bounce opening mechanism for a closed door according to claim 1, characterized in that: The anti-bounce opening mechanism also includes a compression spring and a plug seat, the axis of the sliding pin is perpendicular to the axis of the sliding rod, and the axis of the sliding pin is perpendicular to the inner side wall of the door leaf; The plug socket is a hollow cubic structure with one end open; One end of the sliding rod extends from the closed end of the plug socket into the plug socket and is connected to the plug, the plug extends from the open end of the plug socket, and the free end of the plug is provided with an inclined surface; The compression spring is sleeved on the sliding rod in the plug seat, and the compression spring can make the plug extend out of the door leaf.

3. The linkage anti-bounce opening mechanism for a closed door according to claim 2, characterized in that: A retaining ring and a cylindrical pin are provided on the sliding rod outside the closed end of the plug socket, the retaining ring is sleeved on the sliding rod, the cylindrical pin passes through the retaining ring and the sliding rod, and the cylindrical pin is used to limit the lateral displacement of the sliding rod.

4. The linkage anti-bounce opening mechanism for a closed door according to claim 1, characterized in that: The anti-bounce opening mechanism also includes a reset leaf spring, one end of which is connected to the door leaf through a plurality of hexagonal bolts, and the other end of which is transversely provided with a second oblong hole; A nut is provided at one end of the sliding pin, and the other end of the sliding pin can enter the first oblong hole of the connecting rod after passing through the second oblong hole and the sliding rod in sequence, and a limit block is provided on the sliding pin between the sliding rod and the reset leaf spring, and the diameter of the limit block is greater than the width of the second oblong hole; The sliding rod can move in the second oblong hole along the length direction of the second oblong hole; The other end of the reset leaf spring is in contact with the inner wall of the door leaf, and the other end of the reset leaf spring can move in a direction away from the inner wall of the door leaf and push the other end of the sliding pin into the first oblong hole; The first oblong hole is arranged vertically.

5. The linkage anti-bounce opening mechanism for a closed door according to claim 4, characterized in that: The anti-bounce mechanism further includes a reset lever, a first pin shaft and a lever support, wherein the axis of the reset lever is parallel to the axis of the sliding rod, one end of the reset lever extends outside the door leaf, and the other end of the reset lever is connected to the other end of the reset leaf spring; The lever support is arranged on the door leaf, the middle part of the reset lever is located in the lever support, one end of the first pin shaft passes through the lever support and the reset lever and is fixed by a first cotter pin, the axis of the first pin shaft is perpendicular to the axis of the reset lever, and the reset lever can rotate around the first pin shaft; The lever support is connected to the door leaf via screws.

6. The linkage anti-bounce opening mechanism for a closed door according to claim 5, characterized in that: The reset levers are provided with two, and the two reset levers are respectively located above and below the plug; The other end of the reset leaf spring extends to the upper and lower sides of the reset leaf spring respectively to form a connecting portion, and the other ends of the two reset levers are respectively connected to the two connecting portions of the reset leaf spring.

7. The linkage anti-bounce opening mechanism for a closed door according to claim 6, characterized in that: The other end of the reset lever is hinged to the connecting portion through a second pin shaft, and a second cotter pin is arranged on the second pin shaft.

8. The linkage anti-bounce opening mechanism for a closed door according to claim 5, characterized in that: A notch is provided at a position of the door frame corresponding to the reset lever, and when the door leaf is closed, one end of the reset lever can enter the notch; After one end of the reset lever contacts a side wall of the notch, the reset lever can rotate around the first pin shaft.

9. The linkage anti-bounce opening mechanism for a closed door according to claim 5, characterized in that: An adjusting screw is provided at one end of the reset lever, and the length of the moving distance of the other end of the reset lever can be adjusted by adjusting the length of the adjusting screw extending out of the reset lever.

10. The linkage anti-bounce opening mechanism for a closed door according to claim 2, characterized in that: A side wall of the plug socket is connected to the door leaf through a fixing bolt, and a spring washer is arranged between the fixing bolt and a side wall of the plug socket.

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