Automatic rebound type vault door

Abstract

The utility model belongs to the technical field of vault doors, and discloses an automatic springback type vault door which comprises a main body device used for blocking a vault and further comprises a springback device installed on one side of the front face of the main body device and used for slowly springback to pull the vault door to be closed and reducing door opening resistance. A corner device for supporting a corner in a rolling manner is mounted between the rebound device and the main body device; the springback device comprises a mounting seat, a hydraulic cylinder is mounted in the mounting seat, an exchange piston is slidably mounted in the hydraulic cylinder, a tension spring is mounted between the exchange piston and the hydraulic cylinder, and an exchange groove is formed in the top of the exchange piston. According to the automatic springback type vault door, the vault door is pulled to be closed through slow springback, and the situation that the automatic closing speed of the vault door is too high is prevented; door opening resistance is reduced, so that door opening is facilitated; and through the arrangement of the rolling supporting corners, the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of safe doors, in particular to an automatic rebound safe door. Background Art

[0002] The safe door is a special anti-theft door and an indispensable part of the bank safe. Its anti-theft, fire-proof and anti-destruction performance directly affects the security of the bank safe. It is generally controlled by computer fingerprint or mechanical password lock. The main control wheel is an all-purpose operating handle, and the highest protection level can reach Class C.

[0003] In contrast, a Chinese patent with authorization announcement number CN219840525U discloses a safe door capable of automatically rebounding, including a door frame, a suction mechanism is provided on one side of the door frame, a plurality of hinges are distributed along a vertical array on the other side of the door frame, a door panel is installed inside the door frame through the hinges, a plurality of curved pipes are distributed inside the door frame along a vertical array, a rotating shaft is provided on the outer surface of the door frame along the vertical direction, a plurality of springs are distributed on the outer side of the rotating shaft along a vertical array, one end of the spring is connected to the outer surface of the door frame, a plurality of steel cables staggered with the springs are also provided on the outer side of the rotating shaft, one end of the steel cable extends into the door frame along the corresponding curved pipe and is connected to one side of the door panel.

[0004] The above patent adopts the setting of spring rebound door closing. If the spring force is too small, the door cannot be closed automatically. If the spring force is too large, the door will close too fast, causing safety hazards. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic rebound safe door to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An automatic rebound safe door, comprising a main body device for sealing the safe, and a rebound device installed on one side of the front of the main body device for slowly rebounding to pull the safe door closed and reducing the resistance to opening the door, and a corner device for rolling support corners installed between the rebound device and the main body device;

[0008] The rebound device comprises a mounting seat, a hydraulic cylinder is mounted in the mounting seat, an exchange piston is slidably mounted in the hydraulic cylinder, a tension spring is mounted between the exchange piston and the hydraulic cylinder, an exchange groove is arranged on the top of the exchange piston, a plurality of one-way valves are evenly arranged in the exchange piston, a connecting rod is arranged on one side of the exchange piston, a pull rope is mounted on the end of the connecting rod away from the exchange piston, a fixed block is arranged on the end of the pull rope away from the connecting rod, hydraulic oil is filled in the hydraulic cylinder, and the one-way valve opens toward the tension spring side;

[0009] The corner device comprises a support frame, a rotating frame is arranged on one side of the support frame, and a pulley is rotatably mounted on the rotating frame.

[0010] Furthermore: the main device includes a door frame, a door panel is installed on the door frame, two hinges are symmetrically arranged between the door panel and the door frame, a plurality of lock tongues are evenly arranged on the rear side of the door panel, a door handle is arranged on one side of the door panel, and a door lock is arranged in front of the door handle.

[0011] Furthermore: eight one-way valves are provided, and the pull rope is a steel wire rope.

[0012] Furthermore: an arc-shaped limiting groove is provided on the surface of the pulley, and the pulley is made of 204 stainless steel.

[0013] Furthermore: five locking tongues are provided.

[0014] Furthermore: the door handle is connected to the door panel by bolts, and a silicone anti-slip layer is provided on the surface of the door handle.

[0015] Compared with the prior art, the beneficial effects are:

[0016] 1. The setting of slowly rebounding and pulling the vault door closed can prevent the vault door from closing automatically too quickly;

[0017] 2. It is convenient to open the door by reducing the resistance of opening the door;

[0018] 3. The service life of the device is increased by setting the rolling support corner. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an automatic rebound type safe door described in the utility model;

[0020] Figure 2 It is a rear view of the main device of an automatic rebound type safe door described in the utility model;

[0021] Figure 3 It is an axonometric diagram of a rebound device of an automatic rebound type safe door described in the utility model;

[0022] Figure 4 It is an axonometric diagram of a corner device of an automatic rebound type safe door described in the utility model.

[0023] In the accompanying drawings: 1. main device; 101. door frame; 102. door panel; 103. hinge; 104. lock tongue; 105. door lock; 106. door handle; 2. rebound device; 201. mounting seat; 202. hydraulic cylinder; 203. exchange piston; 204. exchange slot; 205. one-way valve; 206. connecting rod; 207. pull rope; 208. fixed block; 209. tension spring; 3. corner device; 301. support frame; 302. rotating frame; 303. pulley. DETAILED DESCRIPTION

[0024] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 An automatic rebound safe door includes a main device 1 for sealing the safe, and a rebound device 2 installed on the front side of the main device 1 for slowly rebounding to pull the safe door closed and reduce the resistance to opening the door, and a corner device 3 for rolling support corners is installed between the rebound device 2 and the main device 1.

[0026] In this embodiment: the main device 1 includes a door frame 101, a door panel 102 is installed on the door frame 101, two hinges 103 are symmetrically arranged between the door panel 102 and the door frame 101, five lock tongues 104 are evenly arranged on the rear side of the door panel 102, a door handle 106 is arranged on one side of the door panel 102, a door lock 105 is arranged in front of the door handle 106, the door handle 106 is bolted to the door panel 102, and a silicone anti-slip layer is arranged on the surface of the door handle 106. The lock tongue 104 is controlled by the door lock 105 to release the locking state of the door panel 102 and the door frame 101, and the door panel 102 is pulled under the support of the hinge 103 by holding the door handle 106 to open the safe door;

[0027] In this embodiment, the rebound device 2 includes a mounting seat 201, a hydraulic cylinder 202 is mounted in the mounting seat 201, an exchange piston 203 is slidably mounted in the hydraulic cylinder 202, a tension spring 209 is mounted between the exchange piston 203 and the hydraulic cylinder 202, an exchange groove 204 is arranged on the top of the exchange piston 203, eight one-way valves 205 are evenly arranged in the exchange piston 203, a connecting rod 206 is arranged on one side of the exchange piston 203, a pull rope 207 is installed on the end of the connecting rod 206 away from the exchange piston 203, a fixed block 208 is arranged on the end of the pull rope 207 away from the connecting rod 206, hydraulic oil is filled in the hydraulic cylinder 202, the one-way valve 205 opens toward the tension spring 209, the pull rope 207 is made of steel wire rope, and when a person enters the safe, the hydraulic cylinder 202 in the mounting seat 201 supports the tension spring 209 to pull The exchange piston 203 pulls the fixed block 208 through the connecting rod 206 and the pull rope 207, so that the fixed block 208 drives the door panel 102 to close, and the door panel 102 automatically rebounds; during the rebound process, since the hydraulic cylinder 202 is filled with hydraulic oil, and the hydraulic oil on one side of the tension spring 209 can only slowly enter the other side of the exchange piston 203 through the narrow exchange groove 204 on the top of the exchange piston 203, it will produce resistance to the resetting of the tension spring 209, thereby slowing down the resetting speed of the tension spring 209 and slowing down the rebound speed of the door panel 102; and during the door opening process, the hydraulic oil on one side of the connecting rod 206 can simultaneously flow to the side of the tension spring 209 through the one-way valve 205 and the exchange groove 204, so that the hydraulic oil can be quickly exchanged, reducing the resistance to the flow of the hydraulic oil, thereby not affecting the opening of the door;

[0028] In this embodiment: the corner device 3 includes a support frame 301, a rotating frame 302 is arranged on one side of the support frame 301, a pulley 303 is rotatably installed on the rotating frame 302, an arc-shaped limiting groove is opened on the surface of the pulley 303, and the pulley 303 is made of 204 stainless steel. The rotating frame 302 and the pulley 303 installed on the support frame 301 help the pull rope 207 to turn the corner, which helps to improve the life of the pull rope 207.

[0029] Working principle: The lock tongue 104 is controlled by the door lock 105 to release the locking state of the door panel 102 and the door frame 101. The door handle 106 is held by hand, and the door panel 102 is pulled under the support of the hinge 103 to open the safe door. At the same time, the safe door uses the fixed block 208 to make the pull rope 207 pull the connecting rod 206 under the support of the pulley 303 on the rotating frame 302. The connecting rod 206 pulls the tension spring 209 through the exchange piston 203 to store the kinetic energy for opening the door; when a person enters the safe, the hydraulic cylinder 202 in the mounting seat 201 supports the tension spring 209 to pull the exchange piston 203, and the exchange piston 203 pulls the fixed block 208 through the connecting rod 206 and the pull rope 207, so that the fixed block 208 drives the door panel 102 to close, and the door panel 102 automatically rebounds; during the rebound, During the process, since the hydraulic cylinder 202 is filled with hydraulic oil, and the hydraulic oil on one side of the tension spring 209 can only slowly enter the other side of the exchange piston 203 through the narrow exchange groove 204 on the top of the exchange piston 203, it will produce resistance to the resetting of the tension spring 209, thereby slowing down the resetting speed of the tension spring 209 and slowing down the rebound speed of the door panel 102; and in the process of opening the door, the hydraulic oil on one side of the connecting rod 206 can flow to the side of the tension spring 209 through the one-way valve 205 and the exchange groove 204 at the same time, so that the hydraulic oil can be quickly exchanged, reducing the resistance to the flow of hydraulic oil, thereby not affecting the opening of the door; the rotating frame 302 and the pulley 303 installed on the support frame 301 help the pull rope 207 to turn an angle, which helps to increase the life of the pull rope 207.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic rebound safe door, comprising a main body device (1) for sealing a safe, characterized in that: It also includes a rebound device (2) installed on the front side of the main device (1) for slowly rebounding to pull the safe door closed and reduce the resistance to opening the door, and a corner device (3) for rolling support corners is installed between the rebound device (2) and the main device (1); The rebound device (2) comprises a mounting seat (201), a hydraulic cylinder (202) is mounted in the mounting seat (201), an exchange piston (203) is slidably mounted in the hydraulic cylinder (202), a tension spring (209) is mounted between the exchange piston (203) and the hydraulic cylinder (202), an exchange groove (204) is arranged on the top of the exchange piston (203), a plurality of one-way valves (205) are evenly arranged in the exchange piston (203), a connecting rod (206) is arranged on one side of the exchange piston (203), a pull rope (207) is mounted on one end of the connecting rod (206) away from the exchange piston (203), a fixing block (208) is arranged on one end of the pull rope (207) away from the connecting rod (206), hydraulic oil is filled in the hydraulic cylinder (202), and the one-way valve (205) opens toward the side of the tension spring (209); The corner device (3) comprises a support frame (301), a rotating frame (302) is arranged on one side of the support frame (301), and a pulley (303) is rotatably mounted on the rotating frame (302).

2. The automatic rebound safe door according to claim 1 is characterized in that: The main device (1) comprises a door frame (101), a door panel (102) is mounted on the door frame (101), two hinges (103) are symmetrically arranged between the door panel (102) and the door frame (101), a plurality of lock tongues (104) are evenly arranged on the rear side of the door panel (102), a door handle (106) is arranged on one side of the door panel (102), and a door lock (105) is arranged in front of the door handle (106).

3. The automatic rebound safe door according to claim 1 is characterized in that: The one-way valves (205) are provided in eight numbers, and the pull rope (207) is a steel wire rope.

4. The automatic rebound safe door according to claim 1 is characterized in that: An arc-shaped limiting groove is provided on the surface of the pulley (303), and the pulley (303) is made of 204 stainless steel.

5. The automatic rebound safe door according to claim 2 is characterized in that: The number of locking tongues (104) is five.

6. The automatic rebound safe door according to claim 2, characterized in that: The door handle (106) is bolted to the door panel (102), and a silicone anti-slip layer is provided on the surface of the door handle (106).

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