A passage setting device for a flat-push escape lock

Abstract

The present invention provides a channel setting device for a flat-push escape lock, which relates to the technical field of escape locks. The channel setting device of the flat-push escape lock further includes a pressing plate, which is obliquely arranged between the positioning bolt and the bottom of the bottom plate; a hanging ear is provided at one end of the pressing plate close to the transmission plate; the hanging ear is hooked on the positioning bolt; a limiting hole is provided at the end of the pressing plate far from the transmission plate; a limiting post is arranged in the limiting hole; and the width of the limiting hole is greater than the diameter of the limiting post; the limiting post is fixed to the bottom of the bottom plate; a switch assembly is detachably installed on the rear cover plate. The channel setting device of the flat-push escape lock of the present invention is applicable to a large number of existing flat-push escape locks, and can be directly installed on the existing flat-push escape locks; with a detachable design, it is convenient to adjust according to the environment, and consumers do not need to order additionally, saving a long waiting time; it has very high economic value and market value.

Description

Technical Field

[0001] The present invention relates to the technical field of escape locks, and particularly to a passage setting device for a push-type escape lock. Background Art

[0002] An escape lock is a kind of lock used on the emergency exit doors of large supermarkets, large shopping malls, hospitals, schools, and other places. It has the function of preventing outsiders from entering without permission and allowing internal personnel to go out freely in case of emergency. Among them, a push-type escape lock is an escape lock that is opened by a push method, and it has a push lever that presses down in a way that almost covers the entire door; any part of the body pressing down on the push lever can open the evacuation door to escape.

[0003] The passage setting device is a device used to set the evacuation door to be normally open or normally closed. The existing setting methods of the passage setting device are as follows: (1) The passage setting device is designed at the head of the escape lock. By turning the knob, the push lever is driven to press down, and the lock tongue retracts, setting the escape lock to the normally open state; this type of passage setting device allows everyone to set the state of the passage and cannot be removed by itself. (2) The international standard style is to design the passage setting device on the push lever of the escape lock, and use a multi-angle wrench of a specific specification as the key, which is held by the manager to prevent abuse; this style of passage setting device also cannot be removed by itself. (3) The passage setting device is designed on the rear cover plate, and the passage setting is completed through the linkage of some complex mechanisms, which can be removed by itself, but the manufacturing process is complex and the cost is high.

[0004] For the above reasons, the inventor designed a passage setting device for a push-type escape lock with low cost and detachable; this device is applicable to the existing push-type escape locks on the market, such as the escape lock of model L916 for example. Summary of the Invention

[0005] The purpose of the present invention is to provide a passage setting device for a push-type escape lock to solve the above technical problems.

[0006] To achieve the above purpose, a passage setting device for a push-type escape lock according to the present invention includes a bottom plate, a rear cover plate, and a push lever; the push lever is connected to a driving mechanism; the escape lock can be opened or closed through the driving mechanism; the driving mechanism includes a transmission plate arranged between the push lever and the bottom plate; a positioning bolt is provided on the transmission plate; the above structures are all structures of the prior art and do not belong to the innovation points of the present invention, and will not be described in more detail.

[0007] Furthermore, the channel setting device of the push-type escape lock further includes a pressure plate, which is obliquely arranged between the positioning bolt and the bottom of the bottom plate; a hanging ear is provided at one end of the pressure plate close to the transmission plate; the hanging ear is hooked on the positioning bolt; a limiting hole is provided at one end of the pressure plate away from the transmission plate; a limiting post is arranged in the limiting hole; and the width of the limiting hole is greater than the diameter of the limiting post; the limiting post is fixed at the bottom of the bottom plate; a switch assembly is detachably installed on the rear cover plate; the switch assembly includes a connecting plate fixed to the rear cover plate; a rotatable rivet is provided on the connecting plate; a jack is provided at the top of the rivet; a through hole corresponding to the jack is provided on the rear cover plate; the rivet is connected to a driving block; a protruding support portion is provided at an eccentric position at the bottom of the driving block; the support portion abuts against the pressure plate.

[0008] Preferably, the driving block is of a cylindrical structure; a protruding arc-shaped support portion is provided at an eccentric position at the bottom of the cylindrical structure.

[0009] Preferably, the connecting plate is detachably installed on the rear cover plate;

[0010] More preferably, the connecting plate is connected to the rear cover plate by a clamping or bolt fixing method.

[0011] Preferably, the jack is an internal multi-sided hole.

[0012] Advantageous Effects

[0013] The channel setting device of the push-type escape lock of the present invention is applicable to the existing large number of push-type escape locks (market share 80%), can be directly installed on the existing push-type escape locks, and has strong practicability; adopts a detachable design, is convenient to adjust according to the environment, does not require consumers to order additionally, saves a long waiting time; has very high economic value and market value. Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the channel setting device of the push-type escape lock of the present invention in the normally closed state.

[0015] Figure 2 It is a schematic structural diagram of the channel setting device of the push-type escape lock of the present invention in the normally open state.

[0016] Figure 3 It is a top view of the switch assembly of the present invention.

[0017] Figure 4 It is a bottom view of the switch assembly of the present invention. Detailed Embodiments

[0018] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only a part rather than all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the field to which the present invention pertains. The words such as "including" used herein mean that the elements or items appearing before this word cover the elements or items listed after this word and their equivalents, without excluding other elements or items.

[0019] In view of the problems existing in the prior art, an embodiment of the present invention provides a channel setting device for a push-type escape lock.

[0020] Embodiment

[0021] As Figures 1 to 4 shown, a channel setting device for a push-type escape lock includes a bottom plate 1, a rear cover plate 2 and a push rod 3; the push rod 3 is connected to a driving mechanism; the escape lock can be opened or closed through the driving mechanism; specifically, the driving mechanism can control the expansion and contraction of the lock tongue; and then control the opening and closing of the escape lock; the driving mechanism includes a transmission plate 4 arranged between the push rod 3 and the bottom plate; a positioning bolt 5 is provided on the transmission plate 4; the above structures are all structures of the prior art and do not belong to the innovation points of the present invention, and will not be described in more detail.

[0022] The channel setting device for the push-type escape lock further includes a pressing plate 6, and the pressing plate 6 is obliquely arranged between the positioning bolt 5 and the bottom of the bottom plate 1; a hanging ear 6-1 is provided at one end of the pressing plate 6 close to the transmission plate; the hanging ear 6-1 is hooked on the positioning bolt 5; a limiting hole 7 is provided at one end of the pressing plate 6 away from the transmission plate; a limiting post 8 is arranged in the limiting hole 7; and the width of the limiting hole 7 is greater than the diameter of the limiting post 8; the limiting post 8 is fixed to the bottom of the bottom plate 1; a switch assembly is detachably installed on the rear cover plate 2; the switch assembly includes a connecting plate 9 fixed to the rear cover plate 2; a rotatable rivet 10 is provided on the connecting plate 9; a jack 11 is provided at the top of the rivet 10; a through hole corresponding to the jack 11 is provided on the rear cover plate 2; the rivet 10 is connected to a driving block 12; a protruding supporting part 13 is provided at an eccentric position at the bottom of the driving block 12; the supporting part 13 abuts against the pressing plate 6.

[0023] The driving block 12 is of a cylindrical structure; a protruding arc-shaped supporting part 13 is provided at an eccentric position at the bottom of the cylindrical structure.

[0024] The connecting plate 9 is detachably mounted on the rear cover plate 2; specifically, the connecting plate 9 is connected to the rear cover plate 2 by means of snap connection or bolt fixation.

[0025] The jack 11 is a multi-sided hole inside.

[0026] When the channel is set to the normally closed state, the state is as Figure 1 shown. At this time, the supporting part 13 of the driving block 12 is located at the position farthest from the positioning bolt 5 of the pressing plate 6. Pressing down the flat push rod 3 can normally open and close the escape lock through the driving mechanism;

[0027] When the channel is set to the normally open state, as Figure 2 shown, insert a multi-angle wrench through the through hole of the rear cover plate 2 into the jack 11 and rotate the rivet 10; the rivet 10 drives the driving block 12 to rotate, and the supporting part 13 rotates to the position closest to the positioning bolt 5, and the supporting part 13 presses down the pressing plate 6; the pressing plate 6 drives the flat push rod 3 to press down through the positioning bolt 5 hooked by the hanging ear 6-1, so as to drive the lock tongue to retract. At this time, the flat push rod 3 cannot be used to control the expansion and contraction of the lock tongue, and the channel is in the normally open state.

[0028] The reason why the width of the limiting hole 7 is greater than the diameter of the limiting post 8 is that when the pressing plate 6 is pressed down, the inclination angle decreases; since the horizontal position of the hanging ear 6-1 on the pressing plate 6 will not change, the pressing plate 6 needs to slide a certain distance to the side. The control right of setting the channel can be controlled in the hands of the manager through a specific type of multi-sided hole inside and the paired multi-angle wrench; the present invention is added to the existing flat push type escape lock, and has very high practicality and economic value.

[0029] Although the embodiments of the present invention have been described in detail above, it is obvious to those skilled in the art that various modifications and changes can be made to these embodiments. However, it should be understood that such modifications and changes all fall within the scope and spirit of the present invention described in the claims. Moreover, the present invention described herein can have other embodiments and can be implemented or realized in various ways.

Claims

1. A passage setting device for a push-type escape lock, comprising a bottom plate, a rear cover plate and a push lever; the push lever is connected to a driving mechanism; the escape lock can be opened or closed through the driving mechanism; the driving mechanism includes a transmission plate arranged between the push lever and the bottom plate; a positioning bolt is provided on the transmission plate. Characterized in that, The passage setting device of the push-type escape lock further includes a pressing plate, the pressing plate is obliquely arranged between the positioning bolt and the bottom of the bottom plate; a hanging ear is provided at one end of the pressing plate close to the transmission plate; the hanging ear is hooked on the positioning bolt; a limiting hole is provided at one end of the pressing plate away from the transmission plate; a limiting post is arranged in the limiting hole; and the width of the limiting hole is greater than the diameter of the limiting post; the limiting post is fixed at the bottom of the bottom plate; a switch assembly is detachably installed on the rear cover plate; the switch assembly includes a connecting plate fixed to the rear cover plate; a rotatable rivet is provided on the connecting plate; a jack is provided at the top of the rivet; a through hole corresponding to the jack is provided on the rear cover plate; the rivet is connected to a driving block; a protruding support portion is provided at an eccentric position at the bottom of the driving block; the support portion abuts against the pressing plate.

2. The passage setting device for a push-type escape lock according to claim 1, Characterized in that, The driving block is of a cylindrical structure; a protruding arc-shaped support portion is provided at an eccentric position at the bottom of the cylindrical structure.

3. The passage setting device for a push-type escape lock according to claim 2, Characterized in that, The connecting plate is detachably installed on the rear cover plate.

4. The passage setting device for a push-type escape lock according to claim 3, Characterized in that, The connecting plate is connected to the rear cover plate by a clamping or bolt fixing method.

5. The passage setting device for a push-type escape lock according to claim 4, Characterized in that, The jack is an internal multi-angle hole.

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