A mechanical lock for sliding fan to prevent deadlock

Abstract

The present invention discloses a mechanical lock for a sliding door to prevent deadlock, including an electronic lock and a mechanical lock body matched with the electronic lock, wherein a lock tongue is provided on the electronic lock, and a limit retaining ring is provided at the end of the lock tongue, and the mechanical lock body includes an inner door handle, a limit lock buckle and a positioning buckle, wherein the inner door handle is fixedly connected with the limit lock buckle and can slide up and down, a limit groove for inserting the lock tongue is processed on the limit lock buckle, a limit strip matched with the limit retaining ring is provided in the limit groove, a positioning buckle is provided below the limit lock buckle, a positioning groove is processed toward one end of the positioning buckle, and three positioning points are processed in the positioning groove, a positioning strip extending into the positioning groove is provided on the limit lock buckle, and a positioning protrusion is provided at the end of the positioning strip, and the positioning protrusion is usually located at the positioning point in the middle. Through the mechanical lock body, the present invention can realize internal door opening or locking operation by moving the inner door handle up and down after the electronic lock fails, so that the limit strip on the limit lock buckle avoids the limit retaining ring.

Description

Technical Field

[0001] The invention relates to the field of door and window locks, and in particular to an anti-locking mechanical lock for a sliding door. Background Art

[0002] With the popularity of smart doors and windows, more and more sliding doors and windows are now driven by motors to open and close. In order to ensure the safety of the sliding doors and windows, electronic locks are required to lock the sliding doors and windows. The existing electronic lock structure will cause the sliding doors and windows to fail to open normally after a failure, which makes it very easy to cause safety accidents. Therefore, a mechanical lock that can still be opened from the inside after the electronic lock fails is needed. Summary of the invention

[0003] The object of the present invention is to provide a mechanical lock for a sliding fan which can prevent deadlock and can be unlocked from the inside when an electronic lock fails.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] A mechanical lock for preventing a sliding door from being locked comprises an electronic lock and a mechanical lock body cooperating with the electronic lock, wherein the electronic lock is parallel to the mechanical lock body, a lock tongue which is perpendicular to the mechanical lock body and can be inserted into the mechanical lock body is arranged at the extended end of the electronic lock, the lock tongue is columnar, a limit retaining ring is arranged at the extended end of the lock tongue, the mechanical lock body comprises an inner door handle, a limit lock buckle and a positioning buckle, the inner door handle is fixedly connected to the limit lock buckle, and the inner door handle can drive the limit lock buckle to slide up and down, a limit groove for inserting the lock tongue is vertically processed on the limit lock buckle, and the limit groove Limiting strips cooperating with the limiting retaining ring are symmetrically arranged on the end surfaces on both sides near the middle of one end of the electronic lock. The spacing between the two limiting strips is adapted to the width of the lock tongue and is smaller than the width of the limiting retaining ring. A positioning buckle is provided under the limiting lock buckle, and a positioning groove equal to the length of the limiting groove is processed toward one end of the limiting lock buckle. Three positioning points are evenly processed in the positioning groove. A positioning strip extending into the positioning groove is provided on the limiting lock buckle, and a positioning protrusion that can be snapped into the positioning point is provided at the end of the positioning strip, and the positioning protrusion is usually located at the middle positioning point.

[0006] The positioning buckle can also be arranged above the limiting lock buckle.

[0007] A screw hole is processed on one end of the positioning buckle away from the limiting lock buckle.

[0008] The inner door handle is connected to the limit lock by a support rod, and the width of the support rod is adapted to the thickness of the sliding door.

[0009] The electronic lock is installed in the frame, and the mechanical lock body is installed on the indoor sliding fan.

[0010] The push-pull fan is provided with a through groove for the support rod to move.

[0011] The anti-locking mechanical lock for the sliding fan provided by the present invention has the following beneficial effects:

[0012] (1) By arranging an inner door handle, a limit lock buckle and a positioning buckle on the mechanical lock body, after the electronic lock fails, the inner door handle can be moved up and down to make the limit bar on the limit lock buckle avoid the limit retaining ring, so that the door can be opened or locked from the inside, so as to avoid the sliding door being unable to open normally after the electronic lock fails, thereby ensuring emergency escape;

[0013] (2) The position of the limit lock is limited by setting a positioning buckle. Three positioning points are set on the limit lock buckle, and the positioning protrusion on the positioning strip on the limit lock buckle is usually placed within the positioning point in the middle of the limit buckle. When the electronic lock fails to open or lock, the sliding door can be unlocked and locked from the inside, thereby improving the application range of the mechanical lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 A schematic diagram of the structure provided by an embodiment of the present invention.

[0016] Figure 2 A schematic diagram of the internal structure provided by an embodiment of the present invention.

[0017] Figure 3 A schematic diagram of the structure of a limit lock provided in an embodiment of the present invention.

[0018] Figure 4 A schematic diagram of the installation of an electronic lock provided in an embodiment of the present invention.

[0019] Figure 5 A schematic diagram of the installation of a mechanical lock body provided by an embodiment of the present invention.

[0020] Figure numerals: 1. electronic lock; 11. lock tongue; 12. limit ring; 2. mechanical lock body; 21. inner door handle; 22. limit lock buckle; 221. limit groove; 222. limit strip; 23. positioning buckle; 231. positioning groove; 232. positioning point; 232. screw hole; 24. positioning strip; 241. positioning protrusion; 25. connecting rod; 3. frame; 4. sliding fan. DETAILED DESCRIPTION

[0021] Example

[0022] like Figure 1 to Figure 5 As shown, the anti-locking mechanical lock for the sliding fan 4 provided in this embodiment includes an electronic lock 1 and a mechanical lock body 2 matched with the electronic lock 1. When in use, the electronic lock 1 is installed in a frame 3, and the frame 3 refers to a window frame or a door frame. The mechanical lock body 2 is installed on the indoor sliding fan 4. The electronic lock 1 is parallel to the mechanical lock body 2. In order to reduce the thickness of the frame 3, the running track of the electronic lock 1 is to move up and down, and the electronic lock 1 can adopt a driving mechanism with reciprocating motion such as an electric telescopic rod and an electromagnet. The extended end of the electronic lock 1 is provided with a lock tongue 11 that is perpendicular to the mechanical lock body 2 and can be extended into the mechanical lock body 2. The lock tongue 11 is columnar, and a limit retaining ring 12 is provided at the protruding end of the lock tongue 11. The outer diameter of the limit retaining ring 12 is larger than the diameter of the lock tongue 11. The mechanical lock body 2 includes an inner door handle 21, a limit lock buckle 22 and a positioning buckle 23. The inner door handle 21 is fixedly connected to the limit lock buckle 22, and the inner door handle 21 can drive the limit lock buckle 22 to slide up and down. The inner door handle 21 and the limit lock buckle 22 are connected by a support rod. The width of the support rod is adapted to the thickness of the push-pull fan 4. The push-pull fan 4 is processed with a through groove for the support rod to move. The through groove can ensure that the limit lock buckle 22 can move up and down normally. And it will not be stuck, the limit lock buckle 22 is vertically processed with a limit groove 221 for the lock tongue 11 to be inserted, the inner door handle 21 can slide up and down within a stroke equal to the length of the limit groove 221, and the limit strips 222 cooperating with the limit retaining ring 12 are symmetrically arranged on the two side end faces of the limit groove 221 near the middle of one end of the electronic lock 1, and the limit strips 222 are arranged on the side wall near the limit retaining ring 12 to reduce the length of the lock tongue 11 to prevent the lock tongue 11 from hanging on clothes when people walk, and the spacing between the two limit strips 222 is adapted to the width of the lock tongue 11 and is smaller than the width of the limit retaining ring 12. A positioning buckle 23 is provided below 22, and the positioning buckle 23 can also be set above the limiting lock buckle 22. A screw hole 232 is processed at one end of the positioning buckle 23 away from the limiting lock buckle 22, and a positioning groove 231 of the same length as the limiting groove 221 is processed at one end of the positioning buckle 23 toward the limiting lock buckle 22. Three positioning points 232 are evenly processed in the positioning groove 231. A positioning strip 24 extending into the positioning slot 231 is provided on the limiting lock buckle 22, and a positioning protrusion 241 that can be inserted into the positioning point 232 is provided at the end of the positioning strip 24, and the positioning protrusion 241 is often located at the middle positioning point 232.

[0023] The method of using the present invention is:

[0024] When in use, the electronic lock 1 is installed in the frame 3, and the electronic lock 1 is formed into half of the limiting groove 221. Then, the mechanical lock body 2 is installed on the indoor sliding fan 4. When installing the mechanical lock body 2, it is necessary to ensure that when the electronic lock 1 is in the unlocked state: the lock tongue 11 is located at the top or bottom of the limiting groove 221 processed on the limiting lock buckle 22; when the electronic lock 1 is in the locked state: the lock tongue 11 is located in the limiting strip 222 in the middle of the limiting lock buckle 22; then the limiting lock buckle 22 and the inner door handle 21 are connected by the connecting rod 25, and then the positioning buckle 23 is installed above or below the limiting lock buckle 22. When installing the positioning buckle 23, the end with the positioning groove 231 is facing the limiting lock buckle 22, and the positioning strip 24 is installed on the limiting lock buckle 22, and the positioning protrusion 241 on the positioning strip 24 is placed at the positioning point 232 in the middle of the positioning buckle 23.

[0025] Under normal conditions, the cooperation between the electronic lock 1 and the mechanical lock body 2 is:

[0026] When closing the door: move the sliding fan 4 equipped with the mechanical lock body 2 to the end of the frame 3 equipped with the electronic lock 1. For the electric door leaf, this step is to drive the sliding fan 4 to move by the motor. After the sliding fan 4 moves into place, the lock tongue 11 is inserted into the limit groove 221. At this time, the electronic lock 1 drives the lock tongue 11 to move, so that the lock tongue 11 moves to the middle of the limit groove 221, and uses the limit strip 222 on the limit groove 221 to block the limit ring 12 to complete the closing of the sliding fan 4.

[0027] When opening the door: the electronic lock 1 drives the lock tongue 11 to move to the top or bottom of the limit groove 221. At this time, the limit strip 222 avoids the limit retaining ring 12, and the sliding fan 4 can be opened. For the electric door leaf, this step is to drive the sliding fan 4 to move by the motor.

[0028] The process of manually unlocking after the electronic lock 1 fails is:

[0029] When the electronic lock 1 fails in the open state: at this time, the lock tongue 11 is aligned with the top or bottom of the limiting groove 221. After entering the room, people can lift or press down the inner door handle 21 to move the positioning protrusion 241 on the positioning strip 24 in the positioning groove 231 on the positioning buckle 23, so that the limiting strip 222 on the limiting lock buckle 22 can be actively moved to the limiting retaining ring 12, and the limiting retaining ring 12 is limited by the limiting strip 222 to achieve locking from the inner door. When the inner door handle 21 moves upward, the positioning protrusion 241 moves to the positioning point 232 above the positioning groove 231, and when the inner door handle 21 moves downward, the positioning protrusion 241 moves to the positioning point 232 below the positioning groove 231;

[0030] When the electronic lock 1 fails in the closed state: at this time, the lock tongue 11 is aligned with the limit strip 222 in the middle of the limit groove 221. When people come out of the room, they can lift or press down the inner door handle 21 to make the positioning protrusion 241 on the positioning strip 24 avoid the limit retaining ring 12 on the lock tongue 11, so that the inner door can be easily unlocked. When the inner door handle 21 moves upward, the positioning protrusion 241 moves to the positioning point 232 above the positioning groove 231, and when the inner door handle 21 moves downward, the positioning protrusion 241 moves to the positioning point 232 below the positioning groove 231. This is mainly used to deal with the situation that the door leaf cannot be opened when the electronic lock 1 is closed, affecting people's travel or escape. Moreover, when the electronic lock 1 is in the closed state, if a safety accident occurs, people can unlock the door by lifting or pressing down the inner door handle 21, which greatly facilitates people's escape or help.

[0031] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention shall be included in the protection scope of the present invention. It should be noted that the structures or components illustrated in the drawings are not necessarily drawn to scale, and the present invention omits the description of known components and processing technologies and processes to avoid unnecessary limitation of the present invention.

Claims

1. A mechanical lock for sliding door with anti-locking function, characterized by: The electronic lock comprises an electronic lock and a mechanical lock body matched with the electronic lock, wherein the electronic lock is parallel to the mechanical lock body, a lock tongue which is perpendicular to the mechanical lock body and can be inserted into the mechanical lock body is arranged at the extended end of the electronic lock, the lock tongue is columnar, a limit retaining ring is arranged at the extended end of the lock tongue, the mechanical lock body comprises an inner door handle, a limit lock buckle and a positioning buckle, the inner door handle is fixedly connected with the limit lock buckle, and the inner door handle can drive the limit lock buckle to slide up and down, a limit groove for inserting the lock tongue is vertically processed on the limit lock buckle, and the limit groove is close to one end of the electronic lock The two side end faces of the middle part are symmetrically provided with limit strips cooperating with the limit retaining ring. The spacing between the two limit strips is adapted to the width of the lock tongue and is smaller than the width of the limit retaining ring. A positioning buckle is provided under the limit lock buckle. A positioning groove equal to the length of the limit groove is processed at one end of the positioning buckle toward the limit lock buckle. Three positioning points are evenly processed in the positioning groove. The limit lock buckle is provided with a positioning strip extending into the positioning groove. A positioning protrusion that can be snapped into the positioning point is provided at the end of the positioning strip. The positioning protrusion is usually located at the middle positioning point.

2. The anti-locking mechanical lock for a sliding door according to claim 1 is characterized in that: The positioning buckle can also be arranged above the limiting lock buckle.

3. The anti-locking mechanical lock for a sliding door according to claim 1 is characterized in that: A screw hole is processed on one end of the positioning buckle away from the limiting lock buckle.

4. The anti-locking mechanical lock for a sliding door according to claim 1 is characterized in that: The inner door handle is connected to the limit lock by a support rod, and the width of the support rod is adapted to the thickness of the sliding door.

5. The anti-locking mechanical lock for a sliding door according to claim 4 is characterized in that: The push-pull fan is provided with a through groove for the support rod to move.

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