Limiting-adjustable escape push rod

Abstract

The utility model relates to the technical field of escape push rods, in particular to an adjustable limit escape push rod which comprises a lock body and a push rod rotatably arranged on the lock body, the lock body is rotatably provided with a lock tongue, the lock tongue is provided with a reset piece, the reset piece is used for resetting the lock tongue, a rotating block is rotatably arranged in the lock body, and the rotating block is used for rotating the lock body. A rotating block is arranged in the lock body and connected with the push rod, a transmission rod is rotationally arranged in the lock body and connected with the spring bolt, and abutting blocks abutting against the transmission rod are arranged at the two ends of the rotating block. The escape device has the effect of improving the use convenience during escape.

Description

Technical Field

[0001] The utility model relates to the technical field of escape push rods, in particular to an escape push rod with adjustable limit. Background Technique

[0002] Escape locks are mainly applied to emergency safety doors in public places with large traffic such as large supermarkets, shopping malls, office buildings, hospitals, and schools. It can prevent outsiders from entering without permission and enable internal personnel to escape safely in case of emergencies such as fires. Existing escape locks mostly adopt an escape push rod structure for easy opening, that is, the rotation of the push rod drives the lock to open and close.

[0003] In the prior art, the escape push rod mostly drives the lock body structure inside the escape lock to unlock by rotating the push rod. However, most of the push rods in the prior art can only rotate in one direction, either upward or downward, to unlock. In an emergency, the people who need to escape from the escape door are likely to be in a panic state. When using an escape push rod that can only rotate in one direction to unlock, the rotation direction needs to be confirmed. If the panicked people rotate in one direction and cannot unlock, it may waste a lot of time to unlock. The push rod that can only rotate in one direction is not convenient to use when people are escaping. Content of the Utility Model

[0004] In order to improve the convenience during escape, the present application provides an escape push rod with adjustable limit.

[0005] The escape push rod with adjustable limit provided by the present application adopts the following technical solution:

[0006] An escape push rod with adjustable limit includes a lock body and a push rod rotatably arranged on the lock body. A lock tongue is rotatably arranged on the lock body. The lock tongue is provided with a reset member for resetting the lock tongue. A rotating block is rotatably arranged inside the lock body. The rotating block is connected to the push rod. A transmission rod is rotatably arranged inside the lock body. The transmission rod is connected to the lock tongue. Both ends of the rotating block are provided with abutting blocks that abut against the transmission rod.

[0007] By adopting the above technical solution, when the push rod is rotated to unlock, no matter which direction it is rotated, the push rod drives the rotating block to rotate. One of the abutting blocks at both ends of the rotating block will abut against the transmission rod. Continuing to push the push rod, through the transmission of the rotating block, the abutting block and the transmission rod, the lock tongue is driven to rotate to unlock. When the push rod is released, under the action of the reset member, the lock tongue rotates and resets to lock. This escape push rod does not need to confirm the rotation direction, and no matter which direction the push rod is rotated, it can drive the lock tongue to rotate to unlock, thereby improving the convenience of use and facilitating the use by panicked people during escape.

[0008] Preferably, the rotating block is provided with a connecting block, the connecting block is provided with a connecting hole, the rotating block is inserted into the connecting hole, and the abutting block is arranged on the connecting block.

[0009] By adopting the above technical solution, the rotating block is inserted into the connecting hole of the connecting block. The size of the connecting block is larger than that of the rotating block. By increasing the distance from the abutting block to the rotation axis of the rotating block, the force arm is increased, so as to reduce the power required to drive the abutting block to rotate and push the transmission rod to rotate through the push rod, thus facilitating the use during escape.

[0010] Preferably, a limiting groove is arranged on the inner wall of the connecting hole, a limiting block is arranged on the rotating block, and the limiting block is inserted into the limiting groove.

[0011] By adopting the above technical solution, when the push rod rotates to drive the rotating block to rotate, the limiting block moves in the limiting groove. When the limiting block abuts against the inner wall of the limiting groove, continue to push the push rod to rotate so that the limiting block pushes the connecting block to rotate. By setting the limiting block, the possibility of accidentally touching the push rod to unlock is reduced, and the safety of using the escape door is improved. At the same time, by the limiting block abutting against the inner wall of the limiting groove, the connecting block can be limited, and the shaking of the connecting block in the lock body can be reduced.

[0012] Preferably, the rotating block is provided with a fixing block, and the fixing block abuts against the side wall of the connecting block.

[0013] By adopting the above technical solution, by the fixing block abutting against the side wall of the connecting block, the shaking of the connecting block in the lock body is reduced, and the stability of the connection between the connecting block and the rotating block is improved.

[0014] Preferably, the push rod is detachably connected to the rotating block. The limiting groove penetrates through the connecting block. A fixing cylinder is sleeved on the rotating block. One end of the fixing cylinder abuts against the connecting block, and the other end of the fixing cylinder abuts against the inner wall of the lock body.

[0015] By adopting the above technical solution, the fixing cylinder is arranged between the connecting block and the lock body. At the same time, the connecting block is arranged between the fixing cylinder and the fixing block, so as to fix the connecting block and improve the stability of the rotation of the connecting block. At the same time, when the connecting block or the rotating block is damaged, the push rod and the rotating block can be disassembled. At this time, the rotating block, the fixing cylinder and the connecting block are disassembled from the lock body, and then the fixing cylinder and the connecting block are disassembled from the rotating block in turn, so as to be replaced, improving the convenience of part replacement.

[0016] Preferably, a first torsion spring is sleeved on the rotating block. One end of the first torsion spring abuts against the rotating block, and the other end of the first torsion spring abuts against the lock body.

[0017] By adopting the above technical solution, when the pushing rod is rotated to drive the rotating block to rotate, the first torsion spring is compressed. When the user releases the pushing rod, the first torsion spring restores to push the rotating block to rotate, thereby driving the pushing rod to rotate back to its original state, improving the convenience of use. At the same time, it helps the locking tongue to automatically reset to achieve locking.

[0018] Preferably, the rotating block is provided with a first clamping block, and the lock body is provided with a second clamping block. One end of the first torsion spring abuts against the first clamping block, and the other end of the first torsion spring abuts against the second clamping block.

[0019] By adopting the above technical solution, when the pushing rod is rotated to drive the rotating block to rotate, at this time, the first clamping block rotates to push the first torsion spring to be compressed. When the rotating block is released, the first torsion spring pushes the first clamping block and then drives the rotating block to rotate and reset. By setting the first clamping block and the second clamping block, it is better to push the first torsion spring to perform compression and reset operations. The first clamping block and the second clamping block reduce the possibility of the first torsion spring detaching from the rotating block or the lock body after deformation, resulting in reset failure.

[0020] Preferably, the reset member is a second torsion spring. The locking tongue is rotatably arranged on the sub-lock body through a rotating shaft. The second torsion spring is sleeved on the locking tongue rotating shaft. One end of the second torsion spring abuts against the locking tongue, and the other end of the second torsion spring abuts against the lock body.

[0021] By adopting the above technical solution, when the pushing rod rotates, when driving the locking tongue to rotate to unlock through transmission, the second torsion spring is compressed at the same time. When the pushing rod is released, after losing the pressure, the second torsion spring restores to push the locking tongue to rotate and reset to achieve locking, and the operation is simple and convenient.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. By setting the main lock body, pushing rod, locking tongue, rotating block, transmission rod, abutting block and reset member, when unlocking, rotating the pushing rod on the main lock body drives the rotating block to rotate. No matter which direction it rotates, it will drive the transmission rod to rotate through the abutting block at one end of the rotating block, thereby driving the locking tongue to rotate to unlock. At the same time, the locking tongue can be reset through the reset member to close the lock. The operation is simple and convenient, improving the convenience of use, so as to facilitate the use by people in a panic state when escaping.

[0024] 2. By setting the connecting block, connecting hole, fixing block and fixing cylinder, the rotating block passes through the connecting hole of the connecting block. The fixing cylinder is sleeved on the rotating block and is arranged between the connecting block and the lock body. The connecting block is arranged between the fixing block and the fixing cylinder, thereby fixing the connecting block, improving the stability of the connecting block when rotating. At the same time, when a part is damaged, after removing the pushing rod, the rotating block, connecting block and fixing cylinder can be removed, and then the fixing cylinder and connecting block can be removed in sequence for replacement.

[0025] 3. By setting the first torsion spring, the first latch and the second latch, with both ends of the first torsion spring abutting against the first latch and the second latch respectively, when the push rod is rotated, the push rod drives the rotating block to rotate. The first latch follows the rotating block to rotate and compress the first torsion spring. When the push rod is released, the first torsion spring restores and pushes the first latch to drive the rotating block to rotate and reset, thereby driving the lock tongue to reset and lock, improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. is an overall schematic diagram of an escape push rod with adjustable limit provided by an embodiment of the present application.

[0027] Figure 2 FIG. is a schematic diagram for showing the internal structure of the lock body.

[0028] Figure 3 FIG. is a sectional schematic diagram for showing the connection relationship between the rotating block and the connecting block.

[0029] DESCRIPTION OF REFERENCE NUMERALS: 1, lock body; 11, lock tongue; 12, second torsion spring; 13, transmission rod; 14, second latch; 15, transmission plate; 151, transmission groove; 2, push rod; 21, auxiliary rod; 3, rotating block; 31, limit block; 32, fixed block; 33, fixed cylinder; 331, first torsion spring; 4, connecting block; 41, abutting block; 42, connecting hole; 43, limit groove; 44, first latch. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following is a further detailed description of the present application with reference to the Figures 1-3 drawings.

[0031] An embodiment of the present application discloses an escape push rod with adjustable limit. Refer to Figures 1 to 3, which includes two push rods 2 and two lock bodies 1. The push rods 2 are rotatably arranged on the lock bodies 1. Auxiliary rods 21 are fixedly arranged at the ends of the push rods 2 away from the lock bodies 1, and the auxiliary rods 21 are integrally connected to each other. A lock tongue 11 is rotatably arranged on one side of the lock body 1 away from the push rod 2 through a rotating shaft. A second torsion spring 12 is sleeved on the rotating shaft of the lock tongue 11 as a reset member, and the two ends of the second torsion spring 12 respectively abut against the lock tongue 11 and a clamping rod on the lock body 1. A cylindrical rotating block 3 is rotatably arranged in the lock body 1, and the rotating block 3 is fixedly connected to the push rod 2 through a bolt. An elliptical connecting block 4 is rotatably arranged on the rotating block 3. The connecting block 4 is arranged in the lock body 1. A connecting hole 42 is penetrated through the connecting block 4, and the connecting hole 42 is adapted to be sleeved on the rotating block 3. Contact blocks 41 are fixedly arranged at both ends of the connecting block 4. A transmission rod 13 is fixedly arranged at one end of the lock tongue 11 away from the lock body 1, and the contact block 41 is located below the transmission rod 13 and abuts against the transmission rod 13. When the auxiliary rod 21 is pushed to drive the push rod 2 to rotate, the rotating block 3 rotates accordingly, thereby driving the connecting block 4 to rotate. No matter which direction the push rod 2 rotates, one of the contact blocks 41 at both ends of the connecting block 4 will push the transmission rod 13 to drive the lock tongue 11 to rotate for unlocking operation, thereby improving the convenience of use.

[0032] For the convenience of disassembling and replacing parts, referring to Figure 2 and Figure 3 , a limiting groove 43 is arranged on the inner wall of the connecting hole 42 of the connecting block 4. The limiting groove 43 penetrates through the connecting block 4. A limiting block 31 is integrally arranged on the outer wall of the rotating block 3, and the limiting block 31 is inserted into the limiting groove 43. A circular fixing block 32 is integrally fixed at one end of the rotating block 3 away from the push rod 2. The surface radius of the fixing block 32 is larger than the cross-sectional radius of the rotating block 3. A fixing cylinder 33 is adaptively sleeved on the rotating block 3. One end of the fixing cylinder 33 abuts against the connecting block 4, and the other end of the fixing cylinder 33 abuts against the inner wall of the lock body 1. The side wall of the connecting block 4 away from the fixing cylinder 33 abuts against the side wall of the fixing block 32. A first torsion spring 331 is sleeved on the rotating block 3. A first clamping block 44 is integrally arranged on the top wall of the connecting block 4. A second clamping block 14 is arranged on the inner wall of the lock body 1. The second clamping block 14 is located directly above the first clamping block 44. The first clamping block 44 and the second clamping block 14 are inserted between the two ends of the first torsion spring 331 and can abut against the two ends of the first torsion spring 331. When the lock body 1 is opened for replacing parts, loosen the bolt on the push rod 2, disassemble and separate the push rod 2 and the rotating block 3. At this time, the rotating block 3 can be removed from the lock body 1, and the fixing cylinder 33 and the connecting block 4 can be disassembled in sequence to disassemble the parts for replacement, improving the convenience of replacement after the parts are damaged.

[0033] To improve the stability of the rotation of the transmission rod 13, referring to Figure 2, a transmission plate 15 is rotatably arranged in the lock body 1 through a rotating shaft. The transmission plate 15 is located at both ends of the transmission rod 13. The transmission plate 15 is provided with a transmission groove 151. Both ends of the transmission rod 13 are inserted into the transmission grooves 151 of one transmission plate 15 respectively. When the transmission rod 13 is pushed by the abutting block 41 to rotate, the transmission rod 13 drives the transmission plate 15 to rotate through the transmission groove 151, so as to limit the transmission plate 15 through the rotating shaft of the lock body 1 and improve the rotation stability of the transmission rod 13.

[0034] The implementation principle of an escape push rod with adjustable limit in the embodiment of the present application is as follows: when unlocking is required, no matter which direction the auxiliary rod 21 is pushed to drive the push rod 2 to rotate, the push rod 2 drives the connecting block 4 to rotate through the rotating block 3. When the connecting block 4 rotates, one of the abutting blocks 41 at both ends will push the transmission rod 13 to rotate. While driving the transmission plate 15 to rotate, the lock tongue 11 is driven to rotate to unlock, so that panicked people can open the escape lock faster and more conveniently when escaping. When in use, there is no need to judge the use direction, and there will be no situation where the lock cannot be opened after rotating in the wrong direction, improving the convenience of use during escape.

[0035] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An escape push rod with adjustable limit, comprising a lock body (1) and a push rod (2) rotatably arranged on the lock body (1), the lock body (1) being rotatably provided with a lock tongue (11), the lock tongue (11) being provided with a reset member, the reset member being used for resetting the lock tongue (11), characterized in that: A rotating block (3) is rotatably arranged in the lock body (1), the rotating block (3) is connected to the push rod (2), a transmission rod (13) is rotatably arranged in the lock body (1), the transmission rod (13) is connected to the lock tongue (11), and abutment blocks (41) abutting against the transmission rod (13) are arranged at both ends of the rotating block (3).

2. The adjustable limit escape push rod according to claim 1, characterized in that: The rotating block (3) is provided with a connecting block (4), the connecting block (4) is provided with a connecting hole (42), the rotating block (3) is inserted into the connecting hole (42), and the abutting block (41) is provided on the connecting block (4).

3. The adjustable limit escape push rod according to claim 2, characterized in that: The inner wall of the connecting hole (42) is provided with a limiting groove (43), the rotating block (3) is provided with a limiting block (31), and the limiting block (31) is inserted into the limiting groove (43).

4. The adjustable limit escape push rod according to claim 3, characterized in that: The rotating block (3) is provided with a fixed block (32), and the fixed block (32) abuts against a side wall of the connecting block (4).

5. The adjustable limit escape push rod according to claim 4, characterized in that: The push rod (2) is detachably connected to the rotating block (3); the limiting groove (43) penetrates the connecting block (4); a fixing cylinder (33) is sleeved on the rotating block (3); one end of the fixing cylinder (33) abuts against the connecting block (4); and the other end of the fixing cylinder (33) abuts against the inner wall of the lock body (1).

6. The adjustable limit escape push rod according to claim 1, characterized in that: The rotating block (3) is sleeved with a first torsion spring (331), one end of the first torsion spring (331) abuts against the rotating block (3), and the other end of the first torsion spring (331) abuts against the lock body (1).

7. The adjustable limit escape push rod according to claim 6, characterized in that: The rotating block (3) is provided with a first clamping block (44), the lock body (1) is provided with a second clamping block (14), one end of the first torsion spring (331) abuts against the first clamping block (44), and the other end of the first torsion spring (331) abuts against the second clamping block (14).

8. The adjustable limit escape push rod according to claim 1, characterized in that: The reset element is a second torsion spring (12); the lock tongue (11) is rotatably arranged on the sub-lock body (1) via a rotating shaft; the second torsion spring (12) is sleeved on the rotating shaft of the lock tongue (11); one end of the second torsion spring (12) abuts against the lock tongue (11) and the other end of the second torsion spring (12) abuts against the lock body (1).

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