Lock capable of preventing people from being locked
By introducing an adjustment mechanism into the lock, the connection and separation of the push rod and the lock pad is controlled, the problem of locking people is solved, and the function of avoiding interference when needed is achieved and ensuring normal door opening is ensured.
Patent Information
- Application Number
- CN202422069057.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-26
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-26
AI Technical Summary
When existing locks require a quiet environment, people outside the door cannot open the door, resulting in the occurrence of locking people.
A lock is designed to prevent people from locking, including a lock seat, handle, lever, mounting seat, unlocking handle, push rod, lock paddle and adjustment mechanism. The adjustment mechanism adjusts the connection and separation between the push rod and the lock paddle, ensuring that the person outside the door cannot unlock it. At the same time, the person inside the door can unlock it through the adjustment mechanism to avoid the locking incident.
It effectively prevents people outside the door from interfering with the study or work of the users inside the door, avoids the occurrence of people locking, and ensures that people inside the door can open the door normally when needed.
Smart Images
Figure CN223018362U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of locks, and particularly relates to a lock for preventing people from being locked in. Background Art
[0002] Existing locks generally include a lock head and a lock base. After the lock head and the lock base are locked together, a key is used to unlock the lock head. When the lock is installed on a door, the door can be opened from the outside with a key, or the door can be opened from the inside by pulling the unlocking handle.
[0003] However, when an important meeting or study is being carried out indoors, the people inside the room need a relatively quiet environment, and at this time, it is necessary to prevent people outside the door from opening the door. And after use, the door needs to be opened. In the case where people outside the door cannot open the door, it is easy to occur the event of locking people in. Therefore, it is necessary to design a lock for preventing people from being locked in to solve the above problems. Summary of the Utility Model
[0004] In view of the above problems, the utility model provides a lock for preventing people from being locked in to solve the problems raised in the above background art.
[0005] To achieve the above object, the utility model provides the following technical solution: A lock for preventing people from being locked in, including a lock base, a handle, a lever, a mounting seat, an unlocking handle, a push rod, a lock catch lever and an adjusting mechanism. The lock base is used for being installed on a door. The outside of the lock base is connected with the handle. One end of the handle is connected with one end of the lever. The other end of the lever passes through the lock base and is located indoors, and is used for being in transmission connection with the upper end of the push rod. The inside of the lock base is connected with the mounting seat. The unlocking handle is rotatably connected to the mounting seat and is used for being in transmission connection with the upper end of the push rod;
[0006] The right side of the lower end of the push rod is used for being connected with the right side of the lock catch lever. The middle part of the lock catch lever is rotatably connected to the mounting seat. The left side of the lock catch lever is used for locking the lock head;
[0007] The adjusting mechanism is connected with the mounting seat and is in transmission connection with the left side of the lower end of the push rod. The adjusting mechanism is used for driving the lower end of the push rod to be connected with the right side of the lock catch lever.
[0008] Further, the lock for preventing people from being locked in further includes a fork lever. The middle part of the fork lever is rotatably connected to the mounting seat. The left side of the fork lever abuts against the unlocking handle. The upper right side of the fork lever abuts against the lever. The lower right side of the fork lever is rotatably connected to the upper end of the push rod.
[0009] Further, a thrust piece is arranged on the upper right side of the fork lever. The lever is used for abutting against the thrust piece.
[0010] Further, the lock for preventing locking people further includes a spring, one end of the spring is connected to the mounting seat, and the other end of the spring is connected to the fork rod.
[0011] Further, a bayonet is provided at the upper middle part of the fork rod, a connection hole is provided on the mounting seat, one end of the spring is inserted into the connection hole, and the other end of the spring is inserted into the bayonet.
[0012] Further, the adjusting mechanism includes a triangular fork, the middle part of the triangular fork is rotatably connected to the mounting seat, and the upper middle part of the triangular fork is slidably connected to the lower end of the push rod.
[0013] Further, a connecting member is provided on the left side of the lower end of the push rod, a limiting hole is provided on the connecting member, a connecting head is provided on the upper middle part of the triangular fork, and the connecting head is slidably connected to the limiting hole.
[0014] Further, a pushing piece is provided on the right side of the lower end of the push rod, a butting piece is provided on the upper right side of the lock catch piece, the pushing piece is used to be arranged above the butting piece and used to butt against the butting piece.
[0015] Further, the middle part of the unlocking handle is rotatably connected to the lock seat through an unlocking rotating shaft, and the axial direction of the unlocking rotating shaft faces the left and right directions.
[0016] The technical effects and advantages of the present utility model:
[0017] 1. By arranging the adjusting mechanism on the mounting seat inside the lock seat, and using the adjusting mechanism to adjust the separation of the push rod and the lock catch piece, people outside the door cannot drive the lock catch piece to disengage from the lock head by using the handle, avoiding interference from people outside the door to the learning or work of the people using the door inside.
[0018] 2. After the people inside the door adjust the connection between the push rod and the lock catch piece through the adjusting mechanism, the people inside the door then drive the lever and the push rod through the unlocking handle, and use the push rod to drive the lock catch piece to disengage from the lock head for unlocking, which can prevent the people inside the door from being unable to open the door and avoid the occurrence of locking people incidents.
[0019] Other features and advantages of the present utility model will be described in the subsequent description, and, in part, will be obvious from the description, or will be understood by implementing the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the structures pointed out in the description and the drawings. Description of the Drawings
[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0021] Figure 1 The external structural schematic diagram of the lock for preventing locking of people according to the embodiment of the present invention is shown;
[0022] Figure 2 The internal structural schematic diagram of the lock for preventing locking of people according to the embodiment of the present invention is shown;
[0023] Figure 3 Shown is Figure 2 The structural schematic diagram of another perspective of the lock for preventing locking of people in
[0024] Reference numerals: 1, lock base; 21, handle; 22, lever; 3, mounting seat; 31, unlocking handle; 32, push rod; 321, limit hole; 322, pushing piece; 33, lock buckle piece; 331, abutting piece; 34, triangular fork; 341, connecting head; 35, fork rod; 351, pushing and abutting piece; 352, bayonet; 36, spring; 4, housing. Detailed implementation manners
[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not 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 belong to the scope of protection of the present invention.
[0026] As Figures 1 to 3 shown, a lock for preventing locking of people according to the embodiment of the present invention includes a lock base 1, a handle 21, a lever 22, a mounting seat 3, an unlocking handle 31, a push rod 32, a lock buckle piece 33, and an adjusting mechanism. The lock base 1 is used for installation on a door. The outside of the lock base 1 is connected with the handle 21. One end of the handle 21 is connected with the lever 22. The other end of the lever 22 passes through the lock base 1 and is located indoors, and is used for driving connection with the upper end of the push rod 32. The inside of the lock base 1 is connected with the mounting seat 3. The unlocking handle 31 is rotatably connected to the mounting seat 3 and is used for driving connection with the upper end of the push rod 32;
[0027] The right side of the lower end of the push rod 32 is used to connect with the right side of the lock paddle 33, the middle part of the lock paddle 33 is rotatably connected with the mounting seat 3, and the left side of the lock paddle 33 is used to lock the lock head;
[0028] The adjusting mechanism is connected to the mounting seat 3 and is transmission-connected to the left side of the lower end of the push rod 32 . The adjusting mechanism is used to drive the lower end of the push rod 32 to connect to the right side of the lock paddle 33 .
[0029] In this embodiment, the adjusting mechanism is connected to the push rod 32 by transmission, and the push rod 32 is driven to rotate, so that the right side of the lower end of the push rod 32 is separated from the right side of the lock paddle 33. The handle 21 on the outside of the door is pulled, and the handle 21 is connected to the lever 22, and the lever 22 is connected to the push rod 32 by transmission, so that the push rod 32 moves downward. Since the push rod 32 is separated from the lock paddle 33 at this time, the lock paddle 33 is not driven to move during the downward movement of the push rod 32, and the external unlocking cannot be performed. Similarly, the unlocking handle 31 inside the door is pulled, and the unlocking handle 31 is connected to the lever 22, and the lever 22 is connected to the push rod 32 by transmission, so that the push rod 32 moves downward. Since the push rod 32 is separated from the lock paddle 33 at this time, the lock paddle 33 is not driven to move during the downward movement of the push rod 32, and the internal unlocking cannot be performed.
[0030] The push rod 32 is rotated by the adjusting mechanism, so that the right side of the lower end of the push rod 32 abuts against the right side of the lock paddle 33. Pulling the handle 21 outside the door drives the push rod 32 to move downward. Since the push rod 32 abuts against the lock paddle 33 at this time, the push rod 32 drives the lock paddle 33 to rotate during the downward movement, so that the left side of the lock paddle 33 is separated from the lock head, and unlocking from the outside is realized. Similarly, pulling the unlocking handle 31 inside the door drives the push rod 32 to move downward. Since the push rod 32 abuts against the lock paddle 33 at this time, the push rod 32 drives the lock paddle 33 to rotate during the downward movement, so that the left side of the lock paddle 33 is separated from the lock head, and unlocking from the inside is realized.
[0031] Therefore, by setting the adjustment mechanism on the mounting seat 3 inside the lock seat 1, the adjustment mechanism is used to adjust the push rod 32 to separate from the lock paddle 33. People outside the door cannot use the handle 21 to drive the lock paddle 33 to disengage from the lock head to unlock the door, thereby preventing people outside the door from interfering with the study or work of the people inside the door.
[0032] Secondly, after the person inside the door adjusts the push rod 32 and the lock paddle 33 through the adjustment mechanism, the person inside the door drives the lever 22 and the push rod 32 through the unlocking handle 31, and uses the push rod 32 to drive the lock paddle 33 to disengage from the lock head to unlock the door, which can prevent the person inside the door from being unable to open the door and avoid the occurrence of locking people.
[0033] Alternatively, if Figure 2and Figure 3 As shown, the lock for preventing locking people further includes a fork lever 35. The middle part of the fork lever 35 is rotatably connected to the mounting seat 3. The left side of the fork lever 35 abuts against the unlocking handle 31. The upper end of the right side of the fork lever 35 abuts against the shift lever 22. The lower end of the right side of the fork lever 35 is rotatably connected to the upper end of the push rod 32.
[0034] Specifically, the unlocking handle 31 is located on the left side of the mounting seat 3. Secondly, the middle part of the fork lever 35 is rotatably connected to the mounting seat 3 through a first fork rotating shaft. The axial direction of the first fork rotating shaft faces the front-back direction. In addition, the lower end of the right side of the fork lever 35 is rotatably connected to the push rod 32 through a second fork rotating shaft. The axial direction of the second fork rotating shaft faces the front-back direction.
[0035] In this embodiment, by setting the fork lever 35, the middle part of the unlocking handle 31 rotates relative to the mounting seat 3, so that the upper end of the front side of the unlocking handle 31 abuts against the lower end of the left side of the fork lever 35. When the unlocking handle 31 is pulled down to rotate, it drives the fork lever 35 to rotate clockwise. Then, the left side of the fork lever 35 moves upward, and the lower end of the right side of the fork lever 35 drives the push rod 32 to move downward. By using the downward movement of the push rod 32 to push the right side of the lock catch flap 33 to move downward, the lock catch flap 33 rotates clockwise, so that the left side of the lock catch flap 33 moves rightward and upward, which is beneficial to the separation of the left side of the lock catch flap 33 from the lock head.
[0036] Similarly, when the handle 21 is pulled to move the shift lever 22 outward, it drives the upper end of the right side of the fork lever 35 to move backward, making the fork lever 35 rotate clockwise, thereby driving the push rod 32 to move downward. By using the downward movement of the push rod 32 to push the right side of the lock catch flap 33 to move downward, the lock catch flap 33 rotates clockwise, so that the left side of the lock catch flap 33 moves rightward and upward, which is beneficial to the separation of the left side of the lock catch flap 33 from the lock head.
[0037] Optionally, as Figure 3 shown, a thrust piece 351 is arranged at the upper end of the right side of the fork lever 35, and the shift lever 22 is used to abut against the thrust piece 351.
[0038] In this embodiment, by arranging the thrust piece 351 at the upper end of the right side of the fork lever 35, the contact area between the upper end of the right side of the fork lever 35 and the shift lever 22 can be increased, which is convenient for using the shift lever 22 to drive the fork lever 35 to move.
[0039] Optionally, as Figure 2 and Figure 3 shown, the lock for preventing locking people further includes a spring 36. One end of the spring 36 is connected to the mounting seat 3, and the other end of the spring 36 is connected to the fork lever 35.
[0040] In this embodiment, a spring 36 is provided between the left side of the fork lever 35 and the left side of the mounting base 3. When unlocking by driving the lock tab 33 with the unlocking handle 31 or the handle 21, when driving the fork lever 35 to rotate counterclockwise, the left side of the fork lever 35 moves upward to the right, thereby stretching the spring 36. After the lock tab 33 is unlocked, the spring 36 will automatically contract and drive the fork lever 35 to rotate clockwise and return to its original position.
[0041] Optionally, as Figure 3 shown, a bayonet 352 is provided at the upper end of the middle part of the fork lever 35, a connection hole is provided on the mounting base 3, one end of the spring 36 is inserted into the connection hole, and the other end of the spring 36 is inserted into the bayonet 352.
[0042] In this embodiment, a bayonet 352 is provided at the upper end of the middle part of the fork lever 35, and a connection hole is also provided on the mounting base 3. Inserting one end of the spring 36 into the connection hole and the other end of the spring 36 into the bayonet 352 can facilitate the assembly of the spring 36.
[0043] Optionally, as Figure 2 and Figure 3 shown, the adjusting mechanism includes a triangular fork 34. The middle part of the triangular fork 34 is rotatably connected to the mounting base 3, and the upper end of the middle part of the triangular fork 34 is slidably connected to the lower end of the push rod 32.
[0044] Specifically, the middle part of the triangular fork 34 is rotatably connected to the mounting base 3 through a triangular fork 34 rotating shaft, and the axial direction of the triangular fork 34 rotating shaft faces the front-back direction.
[0045] In this embodiment, by setting the adjusting mechanism as the triangular fork 34, the middle part of the triangular fork 34 is rotatably connected to the mounting base 3. When the triangular fork 34 rotates clockwise, the upper end of the middle part of the triangular fork 34 slides relative to the push rod 32 and pushes the lower end of the push rod 32 to move to the right, then the push rod 32 rotates counterclockwise with the rotation connection point between the push rod 32 and the fork lever 35 as the central axis until the right side of the lower end of the push rod 32 abuts against the right side of the lock tab 33.
[0046] Similarly, when the triangular fork 34 rotates counterclockwise, the upper end of the middle part of the triangular fork 34 slides relative to the push rod 32 and pushes the lower end of the push rod 32 to move to the left, then the push rod 32 rotates clockwise with the rotation connection point between the push rod 32 and the fork lever 35 as the central axis until the right side of the lower end of the push rod 32 separates from the right side of the lock tab 33.
[0047] Therefore, by setting the adjustment mechanism to include a triangular fork 34, the push rod 32 can be pushed to abut or separate from the lock paddle 33 by manually adjusting the triangular fork 34. Secondly, the adjustment mechanism can also include a driving structure, such as a motor, etc., which can drive the triangular fork 34 to rotate, and the central control line and the pull line can be installed in the reserved holes at the left and right ends of the triangular fork 34 to lock the triangular fork 34.
[0048] Alternatively, if Figure 3 As shown, a connecting piece is provided on the left side of the lower end of the push rod 32 , and a limiting hole 321 is opened on the connecting piece. A connecting head 341 is provided on the middle upper end of the triangular fork 34 , and the connecting head 341 is slidably connected to the limiting hole 321 .
[0049] Specifically, the extending direction of the limiting hole 321 is toward the up and down direction.
[0050] When the triangular fork 34 rotates clockwise, the connecting head 341 on the triangular fork 34 moves rightward, and the connecting head 341 is slidably connected to the limiting hole 321 on the connecting member, driving the connecting member to move rightward, and the connecting head 341 slides in the limiting hole 321. The connecting member is connected to the lower end of the push rod 32, and when the connecting member moves rightward, the push rod 32 rotates counterclockwise around the rotation connection between the push rod 32 and the fork rod 35 as the central axis, until the right side of the lower end of the push rod 32 abuts against the right side of the lock paddle 33.
[0051] Similarly, when the triangular fork 34 rotates counterclockwise, the connecting head 341 on the triangular fork 34 moves leftward, and the connecting head 341 is slidably connected to the limiting hole 321 on the connecting member, driving the connecting member to move leftward, and the connecting head 341 slides in the limiting hole 321. The connecting member is connected to the lower end of the push rod 32, and when the connecting member moves leftward, the push rod 32 rotates clockwise around the rotation connection between the push rod 32 and the fork lever as the central axis, until the right side of the lower end of the push rod 32 is separated from the right side of the lock paddle 33.
[0052] In addition, the mounting base 3 is provided with a limit device on the triangular fork 34, the push rod 32 and the lock paddle 33 to prevent accidental touch from causing damage to the lock or locking a person.
[0053] Alternatively, if Figure 3 As shown, a push piece 322 is provided on the right side of the lower end of the push rod 32 , and a contact piece 331 is provided on the upper right end of the lock paddle 33 . The push piece 322 is used to be arranged above the contact piece 331 and to contact the contact piece 331 .
[0054] In this embodiment, a push piece 322 is provided on the right side of the lower end of the push rod 32, and an abutment piece 331 is provided on the upper right end of the lock pick 33. When the triangular fork 34 rotates, it drives the push rod 32 to rotate, so that the push piece 322 is away from the abutment piece 331, and the push rod 32 will not act on the abutment piece 331 during the downward movement, and the lock cannot be unlocked. When the triangular fork 34 rotates, it drives the push rod 32 to rotate, so that the push piece 322 abuts against the abutment piece 331, and the push rod 32 can act on the abutment piece 331 during the downward movement to drive the lock pick 33 to rotate, so that the left side of the lock pick 33 is separated from the lock head to unlock.
[0055] Optionally, the middle portion of the unlocking handle 31 is rotatably connected to the lock base 1 via an unlocking shaft, and the axial direction of the unlocking shaft is toward the left and right direction.
[0056] Specifically, the lock that prevents people from being locked out also includes an outer shell 4, which is connected to the inner side of the lock seat 1 and is used to wrap the lever 22, the mounting seat 3, the unlocking handle 31, the push rod 32, the lock paddle 33 and the triangular fork 34. The front end of the unlocking handle 31 is located inside the outer shell 4, and the rear end of the unlocking handle 31 passes through the outer shell 4 and is located outside the outer shell 4.
[0057] In this embodiment, the unlocking handle 31 is rotatably connected to the lock base 1 through the unlocking shaft so that the unlocking handle 31 is arranged in the front-to-back direction, thereby preventing the unlocking handle 31 from occupying the space of the lock base 1.
[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A lock to prevent people from being locked in, characterized in that: The invention comprises a lock seat (1), a handle (21), a lever (22), a mounting seat (3), an unlocking handle (31), a push rod (32), a lock paddle (33) and an adjusting mechanism. The lock seat (1) is used to be installed on a door. The outside of the lock seat (1) is connected to the handle (21). The handle (21) is connected to one end of the lever (22). The other end of the lever (22) passes through the lock seat (1) and is located indoors, and is used for transmission connection with the upper end of the push rod (32). The inside of the lock seat (1) is connected to the mounting seat (3). The unlocking handle (31) is rotatably connected to the mounting seat (3) and is used for transmission connection with the upper end of the push rod (32). The right side of the lower end of the push rod (32) is used to connect with the right side of the lock paddle (33), the middle part of the lock paddle (33) is rotatably connected with the mounting seat (3), and the left side of the lock paddle (33) is used to lock the lock head; The adjustment mechanism is connected to the mounting seat (3) and is transmission-connected to the left side of the lower end of the push rod (32). The adjustment mechanism is used to drive the lower end of the push rod (32) to connect to the right side of the lock paddle (33).
2. The lock device for preventing people from being locked in according to claim 1, characterized in that: It also includes a shift fork rod (35), the middle part of which is rotatably connected to the mounting seat (3), the left side of the shift fork rod (35) abuts against the unlocking handle (31), the right upper end of the shift fork rod (35) abuts against the shift rod (22), and the right lower end of the shift fork rod (35) is rotatably connected to the upper end of the push rod (32).
3. The lock device for preventing people from being locked in according to claim 2, characterized in that: A push piece (351) is provided at the upper right end of the shift fork rod (35), and the shift rod (22) is used to abut against the push piece (351).
4. The lock device for preventing people from being locked in according to claim 3, characterized in that: It also includes a spring (36), one end of the spring (36) is connected to the mounting seat (3), and the other end of the spring (36) is connected to the shift fork rod (35).
5. The lock device for preventing people from being locked in according to claim 4, characterized in that: A bayonet (352) is provided at the middle upper end of the shift fork rod (35), a connecting hole is provided on the mounting seat (3), one end of the spring (36) is inserted into the connecting hole, and the other end of the spring (36) is inserted into the bayonet (352).
6. The lock device for preventing people from being locked in according to any one of claims 1 to 5, characterized in that: The adjustment mechanism comprises a triangular fork (34), the middle part of the triangular fork (34) is rotatably connected to the mounting seat (3), and the upper end of the middle part of the triangular fork (34) is slidably connected to the lower end of the push rod (32).
7. The lock device for preventing people from being locked in according to claim 6, characterized in that: A connecting piece is provided on the left side of the lower end of the push rod (32), and a limiting hole (321) is provided on the connecting piece. A connecting head (341) is provided on the middle upper end of the triangular fork (34), and the connecting head (341) is slidably connected to the limiting hole (321).
8. The lock device for preventing people from being locked in according to claim 7, characterized in that: A pushing piece (322) is provided on the right side of the lower end of the push rod (32), and a contact piece (331) is provided on the upper right end of the lock paddle (33). The pushing piece (322) is used to be arranged above the contact piece (331) and to contact the contact piece (331).
9. The lock device for preventing people from being locked in according to claim 8, characterized in that: The middle part of the unlocking handle (31) is rotatably connected to the lock seat (1) via an unlocking rotating shaft, and the axial direction of the unlocking rotating shaft faces the left and right direction.