Anti-door-opening safety lock and safety door for production and manufacturing area
By installing a door-opening safety lock on the door and using a collar to restrict the rotation of the door handle, the problem of environmental parameter changes caused by accidental door opening is solved, thus ensuring production quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU JUNA NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-07-10
AI Technical Summary
During production in a closed room, accidental opening of the door can affect environmental parameters and lead to production quality problems.
A door-opening safety lock was designed, including a lock body and a locking mechanism. The lock uses a collar to lock the door handle, restricting its rotation and preventing the door from being opened accidentally.
It effectively prevents doors from being opened accidentally, maintains stable environmental parameters within enclosed rooms, and ensures production quality.
Smart Images

Figure CN224478787U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of factory safety, and in particular relates to a safety lock and safety door for preventing the opening of doors in a production and manufacturing area. Background Technology
[0002] Currently, in order to achieve strict control of oxygen concentration, temperature, humidity, and other parameters during the production process, production must be carried out in a closed room. The closure of the room is usually determined by whether the door is closed. If operators inside or outside the room accidentally open the door while personnel are working inside, it will affect the environmental parameters inside the room and thus the quality of the produced products. Utility Model Content
[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a safety lock and safety door for preventing opening of the door in a production and manufacturing area, so as to prevent workers outside the room from opening the door and affecting production.
[0004] To achieve the above and other related objectives, this utility model provides an anti-opening safety lock and safety door for a production and manufacturing area, comprising:
[0005] A lock body, installed on a door, the lock body including a lock cylinder and a door handle for actuating the lock cylinder to unlock or lock;
[0006] The locking mechanism includes a fixed base and a collar. The fixed base is mounted on the door body, and the collar is detachably mounted on the fixed base. The collar is used to lock the door handle after the lock cylinder is locked, so as to restrict the door handle from rotating to unlock.
[0007] Optionally, the fixed base and the collar are detachably connected by a movable component. The fixed base has a slot for inserting the collar and a movable groove for the movement of the movable component. The movable groove includes a closed end and a connecting end, and the connecting end communicates with the slot.
[0008] Optionally, a locking structure is provided between the movable component and the fixed base, the locking structure being used to lock the movable component after the movable component has moved to the correct position.
[0009] Optionally, the collar includes a body and an insertion part disposed on the body. The body is used to loop around the door handle, and the insertion part is used to insert into the slot. The insertion part is provided with a socket for the movable component to be inserted.
[0010] Optionally, the fixing seat and the collar have an installed state and a detachable state. In the installed state, the insertion part is inserted into the slot, and in the detachable state, the insertion part is located outside the slot.
[0011] Optionally, the movable component and the collar have an unlocked state and a locked state. In the locked state, the movable component is inserted into the socket, and in the unlocked state, the movable component is withdrawn from the socket.
[0012] Optionally, the movable component includes a control button, a connecting rod, a spring, and a movable part. The movable part is disposed within the movable groove and can extend, retract, and rotate within the movable groove. One end of the connecting rod is located within the movable groove and connected to the movable part. The other end of the connecting rod extends through the closed end and is connected to the control button. The spring is sleeved outside the connecting rod, with one end connected to the closed end and the other end connected to the movable part.
[0013] Optionally, a sliding groove is formed on the inner wall of the movable groove, and the sliding groove includes at least two sets of sliding grooves, which are connected end to end to form the sliding groove.
[0014] Optionally, the movable component is provided with a slider, which is used to cooperate with the sliding groove to switch between an unlocked state and a locked state between the movable component and the collar.
[0015] Optionally, the slide groove includes an action groove, a locking groove, and a guide groove that are sequentially connected along the circumference of the movable groove. The action groove is used for the slider to slide towards or away from the slot. The locking groove is used to lock the slider after it enters the slot. The guide groove is used to guide the slider into the action groove of another slide groove.
[0016] Optionally, when switching from the unlocked state to the locked state, the slider moves from the action groove to the locking groove and locks; when switching from the locked state to the unlocked state, the slider disengages from the locking groove and is guided by the guide groove to the action groove of the adjacent slide groove.
[0017] Optionally, the control button is provided with an arc-shaped groove, which provides rotational force to the button when it is pressed.
[0018] To achieve the above and other related objectives, this utility model provides a security door for a production and manufacturing area, including a door body and an anti-opening security lock for the production and manufacturing area installed on the door body.
[0019] As described above, the anti-opening safety lock and safety door of the production and manufacturing area of this utility model have the following features:
[0020] Beneficial effects:
[0021] In this solution, a fixed base is set up to install the collar. After the door is locked, the collar is put on the door handle and then installed on the fixed base, so that rotating the door handle cannot unlock the door, reducing the possibility of the door being accidentally opened and affecting the indoor environment. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the anti-opening safety lock in the production area of this utility model embodiment.
[0023] Figure 2 This is an exploded view of the locking mechanism in an embodiment of this utility model.
[0024] Figure 3 This is a schematic diagram showing the installation state between the fixed base and the collar in an embodiment of this utility model.
[0025] Figure 4 This is a schematic diagram showing that the fixed base and the collar are detachable in an embodiment of this utility model.
[0026] Figure 5 This is a schematic diagram of the locking structure in the unlocked state in an embodiment of this utility model.
[0027] Figure 6 This is a schematic diagram of the locking state of the locking structure in an embodiment of this utility model.
[0028] Figure 7 This is a schematic diagram of the sliding groove on the inner wall of the movable groove in an embodiment of this utility model.
[0029] Figure 8 This is a schematic diagram of the structure of the safety door in the production area in an embodiment of this utility model. Detailed Implementation
[0030] The reference numerals in the accompanying drawings include:
[0031] Door handle 1
[0032] Fixed base 2, slot 201, sliding groove 202, actuating groove 2022, locking groove 2023, guide groove 2024, collar 3, body 301, insertion part 302, insertion hole 303, sleeve opening 304.
[0033] Active component 4, control button 401, arc groove 4011, connecting rod 402, moving part 403, spring 404, mounting base 405, slider 406.
[0034] Door body 5.
[0035] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.
[0036] This utility model provides a safety lock for preventing the door from being opened in a production and manufacturing area, such as... Figures 1 to 7 As shown.
[0037] In one exemplary embodiment of this application, an anti-opening security lock for a manufacturing area is provided, applicable to a manufacturing area, comprising:
[0038] A lock body is installed on the door body 5. The lock body includes a lock cylinder and a door handle 1 for driving the lock cylinder to unlock or lock.
[0039] The locking mechanism includes a fixed base 2 and a collar 3. The fixed base 2 is installed on the door body 5, and the collar 3 is detachably installed on the fixed base 2. The collar 3 is used to lock the door handle 1 after the lock cylinder is locked, so as to restrict the door handle 1 from rotating to unlock.
[0040] It is worth noting that when the door 5 is closed, the lock body locks the door 5 and the door frame. If there is no locking mechanism, the door can be unlocked by rotating the door handle 1, thereby opening the door 5 and changing the room environment inside the door 5.
[0041] In this embodiment, by setting a fixed base 2, the collar 3 is installed. After locking the door body 5, the collar 3 is put on the door handle 1, and then the collar 3 is installed on the fixed base 2, so that rotating the door handle 1 cannot perform the unlocking operation, thereby preventing the door body 5 from being opened accidentally.
[0042] It should also be noted that the setting of the collar 3 can also serve as an indication that the operating room or room should not be opened. When the collar 3 is set on the fixed base 2, the operator will understand that the operating room or room should not be opened at present.
[0043] For example, the manufacturing area is an important area for production or research and development, such as a factory or laboratory.
[0044] In an exemplary embodiment, the fixed base 2 and the collar 3 are detachably connected by a movable component 4. The fixed base 2 has a slot 201 for inserting the collar 3 and a movable groove for the movement of the movable component 4. The movable groove includes a closed end and a communicating end, and the communicating end communicates with the slot 201.
[0045] For example, the movable component 4 is movably connected to the fixed base 2, and the movable part 403 actuates to achieve a detachable connection between the fixed base 2 and the collar 3.
[0046] For example, the active slot is vertically arranged with the slot 201, and the active slot is the active space for the active component 4.
[0047] In an exemplary embodiment, the collar 3 includes a body 301 and an insertion part 302 disposed on the body 301. The body 301 is used to loop around the door handle 1, and the insertion part 302 is used to insert into the slot 201. The insertion part 302 is provided with a socket 303 for the movable component 4 to be inserted.
[0048] For example, the slot 201 is located in the middle of the fixed base 2, and movable slots are provided on both sides of the slot 201.
[0049] For example, the movable slots are provided on the left and right sides of the fixed base 2, or on the upper and lower sides of the fixed base 2.
[0050] For example, the body 301 of the collar 3 has a sleeve opening 304 in the middle for the door handle 1 to enter.
[0051] In this embodiment, the collar 3 is fixed on the fixed base 2 by inserting the movable component 4 into the socket 303.
[0052] In one exemplary embodiment, a locking structure is provided between the movable component 4 and the fixed base 2. The locking structure is used to lock the movable component 4 after it has been moved into place.
[0053] It is worth noting that when the movable component 4 is set on the upper and lower sides of the fixed base 2, in order to prevent the movable component 4 set on the lower side from falling out, a locking structure is required to prevent the movable component 4 on the lower side from falling out.
[0054] In an exemplary embodiment, the fixing seat 2 and the collar 3 have an installed state and a separable state. In the installed state, the insertion part 302 is inserted into the slot 201, and in the separable state, the insertion part 302 is located outside the slot 201.
[0055] It should be noted that the "installed" state indicates that the door should be prevented from being opened accidentally, while the "detachable" state indicates that the door can be opened.
[0056] In an exemplary embodiment, the movable component 4 and the collar 3 have an unlocked state and a locked state. In the locked state, the movable component 4 is inserted into the socket 303, and in the unlocked state, the movable component 4 is withdrawn from the socket 303.
[0057] In this embodiment, when it is necessary to prevent the door 5 from opening accidentally, the insertion part 302 of the collar 3 is inserted into the slot 201, and then the movable component 4 is controlled to enter the insertion hole 303, thereby fixing the collar 3 to the fixed base 2. When it is necessary to open the door 5, the movable component 4 is controlled to withdraw from the insertion hole 303, and then the collar 3 can be removed from the slot 201.
[0058] For example, the movable component 4 includes a pin that, when inserted into the socket 303, locks the collar 3. When the pin is pulled out, the collar 3 can be removed from the mounting base 2.
[0059] For example, the movable component 4 includes a pin with a movable block. The inner wall of the movable slot has a sliding guide groove and a limiting groove perpendicular to the sliding guide groove. The limiting groove is located at the end of the sliding guide groove near the slot 201. When the pin is pressed, the movable block slides along the sliding guide groove. When the pin is inserted into the socket 303 until it cannot be inserted further, the movable block aligns with the limiting groove. Then, by rotating the pin, the movable block can enter the limiting groove, thus locking the collar 3. When it is necessary to remove the collar 3, the pin is rotated in the opposite direction and pulled out to remove the collar 3.
[0060] In an exemplary embodiment, the movable component 4 includes a control button 401, a connecting rod 402, a spring 404, and a movable member 403. The movable member 403 is disposed in a movable groove and can extend, retract, and rotate within the movable groove. One end of the connecting rod 402 is located in the movable groove and connected to the movable member 403. The other end of the connecting rod extends out from the closed end and is connected to the control button 401. The spring 404 is sleeved on the outside of the connecting rod 402, with one end of the spring 404 connected to the closed end and the other end of the spring 404 connected to the movable member 403.
[0061] In this embodiment, the movable part 403 can be moved by pressing the control button 401. When the control button 401 is released, the movable part 403 can be reset under the action of the spring 404.
[0062] For example, the closed end of the movable slot has a through hole for the connecting rod 402 to pass through, and a mounting base 405 is provided at the through hole. The center of the mounting base 405 has a central hole through which the connecting rod 402 passes, and the mounting base 405 is fixed to the side wall of the through hole. The top end of the spring 404 is connected to the mounting base 405 to achieve fixation with the fixed base 2.
[0063] For example, a clamping mechanism such as a clip can be provided outside the control button 401 to clamp the control button 401, keeping the movable part 403 inserted into the socket 303. When the clamping mechanism is released, the control button 401 can be reset by the action of the spring 404.
[0064] In an exemplary embodiment, a sliding groove 202 is provided on the inner wall of the movable groove. The sliding groove 202 includes at least two sets of sliding grooves, which are connected end to end to form a circumferential sliding groove 202.
[0065] For example, eight sets of sliding grooves are provided, which are connected end to end in sequence to form the overall structure of sliding groove 202.
[0066] In one exemplary embodiment, a slider 406 is provided on the movable component 403. The slider 406 is used to cooperate with the sliding groove 202 to switch between an unlocked state and a locked state between the movable component 4 and the collar 3.
[0067] In this embodiment, by manipulating the movable part 403, the slider 406 is moved to a designated position in the sliding groove 202, thereby achieving the state switching between the unlocked state and the locked state.
[0068] In an exemplary embodiment, the slide includes an action groove 2022, a locking groove 2023, and a guide groove 2024 that are sequentially connected along the circumference of the movable groove. The action groove 2022 is used for the slider 406 to slide towards or away from the slot 201. The locking groove 2023 is used to lock the slider 406 after it enters the slot. The guide groove 2024 is used to guide the slider 406 into the action groove 2022 in another slide.
[0069] For example, the locking structure includes a slider 406 and a sliding groove 202, which are configured to lock between the fixed seat 2 and the movable component 4.
[0070] For example, the movable component and the fixed base 2 have a locked state and an unlocked state. In the unlocked state, the slider 406 is located within the actuation groove 2023; in the locked state, the slider 406 is located within the locking groove 2023. (See attached image) Figure 6 The middle arrow points to the movement path of slider 406 as it changes state (unlocked state - locked state - unlocked state).
[0071] In an exemplary embodiment, when switching from the unlocked state to the locked state, the slider 406 moves from the action groove 2022 to the locking groove 2023 and locks; when switching from the locked state to the unlocked state, the slider 406 disengages from the locking groove 2023 and is guided by the guide groove 2024 to the action groove 2022 of the adjacent slide groove.
[0072] In this embodiment, pressing the control button 401 causes the movable component 403 to move. The slider 406 on the movable component 403 moves along the action groove 2022 towards the slot 201 until it reaches the connection point between the action groove 2022 and the slot 201. Then, rotating the control button 401 causes the slider 406 to enter the locking groove 2023. Releasing the control button 401 locks the movable component 4. Pressing and rotating the control button 401 again causes the slider 406 to exit the locking groove 2023 and enter the guide groove 2024, then along the guide groove 2024 into the movable groove of another set of slides. Releasing the control button 401 releases the lock between the movable component 4 and the fixed base 2.
[0073] It should be noted that the side of the action groove 2022, the locking groove 2023 and the guide groove 2024 closest to the slot 201 are all connected to the slot 201.
[0074] In one exemplary embodiment, the control button 401 is provided with an arc-shaped groove 4011, which provides rotational force to the button when it is pressed.
[0075] It should be noted that, in order to avoid the need to manually rotate the control button 401 to lock the movable component 4 and the fixed base 2 when the control button 401 is pressed, an arc-shaped groove 4011 is provided. The arc-shaped groove 4011 is inclined, and the inclination direction is consistent with the required rotation direction of the control button 401.
[0076] In this embodiment, the arc-shaped groove 4011 is provided so that when the control button 401 is pressed, the movable part 403 maintains a counterclockwise rotation trend, so that the slider 406 can smoothly enter the locking groove 2023 from the action groove 2022, and when the control button 401 is pressed again, the slider 406 can move from the locking groove 2023 into the action groove of another slide groove on its own.
[0077] like Figure 8 As shown, in an exemplary embodiment of this application, a security door for a production and manufacturing area is also provided, including a door body 5 and an anti-opening security lock for the production and manufacturing area disposed on the door body 5.
[0078] In this embodiment, a safety lock for preventing the production and manufacturing area is installed on the door 5 to reduce the possibility of the safety door being accidentally opened.
[0079] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A door-opening security lock for a production and manufacturing area, characterized in that, include: A lock body, installed on a door, the lock body including a lock cylinder and a door handle for actuating the lock cylinder to unlock or lock; The locking mechanism includes a fixed base and a collar. The fixed base is mounted on the door body, and the collar is detachably mounted on the fixed base. The collar is used to lock the door handle after the lock cylinder is locked, so as to restrict the door handle from rotating to unlock.
2. The anti-opening safety lock for the production area according to claim 1, characterized in that, The fixed base and the collar are detachably connected by a movable component. The fixed base has a slot for inserting the collar and a movable groove for the movement of the movable component. The movable groove includes a closed end and a connecting end, and the connecting end communicates with the slot.
3. The anti-opening safety lock for the production area according to claim 2, characterized in that, A locking structure is provided between the movable component and the fixed base, and the locking structure is used to lock the movable component after the movable component has moved to the correct position.
4. The anti-opening safety lock for the production area according to claim 2, characterized in that, The collar includes a body and an insertion part disposed on the body. The body is used to loop around the door handle, and the insertion part is used to insert into the slot. The insertion part is provided with a socket for the movable component to be inserted.
5. The anti-opening safety lock for the production area according to claim 4, characterized in that, The fixing seat and the collar have an installed state and a detachable state. In the installed state, the insertion part is inserted into the slot, and in the detachable state, the insertion part is located outside the slot.
6. The anti-opening safety lock for the production area according to claim 4, characterized in that, The movable component and the collar have an unlocked state and a locked state. In the locked state, the movable component is inserted into the socket. In the unlocked state, the movable component is withdrawn from the socket.
7. The anti-opening safety lock for the production area according to claim 6, characterized in that, The movable component includes a control button, a connecting rod, a spring, and a movable part. The movable part is disposed in the movable groove and can extend, retract, and rotate within the movable groove. One end of the connecting rod is located in the movable groove and connected to the movable part. The other end of the connecting rod extends out from the closed end and is connected to the control button. The spring is sleeved on the outside of the connecting rod, with one end of the spring connected to the closed end and the other end of the spring connected to the movable part.
8. The anti-opening safety lock for the production area according to claim 7, characterized in that, The inner wall of the movable groove is provided with a sliding groove around the perimeter. The sliding groove includes at least two sets of sliding grooves, which are connected end to end to form the sliding groove.
9. The anti-opening safety lock for the production area according to claim 8, characterized in that, The movable component is provided with a slider, which is used to cooperate with the sliding groove to switch between an unlocked state and a locked state between the movable component and the collar.
10. The anti-opening safety lock for the production area according to claim 9, characterized in that, The slide includes an action groove, a locking groove, and a guide groove that are connected sequentially along the circumference of the movable groove. The action groove is used for the slider to slide towards or away from the slot. The locking groove is used to lock the slider after it enters the slot. The guide groove is used to guide the slider into the action groove of another slide.
11. The anti-opening safety lock for the production area according to claim 10, characterized in that, When switching from the unlocked state to the locked state, the slider moves from the action groove to the locking groove and locks; when switching from the locked state to the unlocked state, the slider disengages from the locking groove and is guided by the guide groove to the action groove of the adjacent slide groove.
12. The anti-opening safety lock for the production area according to any one of claims 7 to 11, characterized in that, The control button is provided with an arc-shaped groove, which provides rotational force to the button when it is pressed.
13. A security door for a production and manufacturing area, characterized in that, Includes a door and an anti-opening safety lock for the production and manufacturing area as described in any one of claims 1 to 12, which is installed on the door.