Guide locking device for door body and use method thereof
By designing a retractable guide and locking unit to cooperate with the guide rail, the problem of insufficient adaptability of the existing guide locking device is solved, and the high-precision positioning and safe locking of the door body are realized. It is suitable for a variety of door bodies and environments, improving the Ease of use and adaptability.
Patent Information
- Application Number
- CN202411355433.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-01-10
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing guide locking devices are only suitable for specific types of door bodies or installation environments, and cannot be effectively adapted to or installed other types of door bodies or environments, which limits their widespread application and popularity.
A guide locking device for door body including a positioning guide unit and a limit locking unit is designed. By cooperating with the guide rails with the retractable guide end and locking end, it provides high-precision door body movement track and limit locking function, which is suitable for different Size and weight door body and complex installation environment.
It improves the accuracy and stability of the door body during movement, enhances safety, is convenient to operate, and has strong adaptability. It can be adjusted and optimized according to different needs, and meets various types of door body and installation conditions.
Smart Images

Figure CN118855330B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of movable doors, and in particular to a guide locking device for a door body and a use method thereof. Background Art
[0002] At present, the doors of independently movable solid wood wardrobes sold on the market all open outwards. This is a traditional and ancient practice. In the past, when wood was the main material for furniture, a door rotor was installed on one side of the wooden door and a lock was installed on the other side. When the door was opened, it opened outwards. There were also cabinet doors that were opened by sliding.
[0003] In the prior art, the patent document with application number: CN202011294413.7 discloses a sliding wardrobe door, comprising a frame, wherein a cabinet door one and a cabinet door two are slidably connected between the upper and lower inner walls of the frame through multiple groups of silent pulleys, the cabinet door one and the cabinet door two are located in different planes, and the width of the cabinet door one and the width of the cabinet door two are equal to the spacing between the inner walls on both sides of the frame, an opening is provided on the side wall of the cabinet door one, a mounting plate is rotatably connected between the upper and lower inner walls of the opening, a makeup mirror is installed on one side of the mounting plate, the side area of the makeup mirror is more than two-thirds of the area of one side of the cabinet door, and the width of the mounting plate is less than the width of the opening, a plurality of decorative strips are fixedly connected to the side walls on both sides of the mounting plate, the decorative strips are inclined, and a magnetic block one is fixedly connected to one end of the plurality of decorative strips away from the mounting plate, and a magnetic block two matching the magnetic block one is provided on the inner walls on both sides of the opening, and the magnetic block two is embedded in the opening.
[0004] The existing guide locking device is only suitable for a specific type of door body or installation environment, and cannot be effectively adapted or installed for other types of door bodies or environments, which limits the wide application and popularity of the guide locking device. Therefore, it is necessary to improve such a structure to overcome the above defects. Summary of the invention
[0005] The object of the present invention is to provide a guide locking device for a door body and a use method thereof, so as to solve the problems existing in the existing guide locking devices.
[0006] The above technical objectives of the present invention are achieved by the following technical solutions:
[0007] A guide locking device for a door body, comprising a positioning guide unit, wherein a first end of the positioning guide unit is arranged on the door body, a second end of the positioning guide unit is extended to the outside of the door body, the second end of the positioning guide unit is a guide end, the guide end is a retractable structure, the positioning guide unit cooperates with a first guide rail through the guide end, and can move along the first guide rail, and the positioning guide unit cooperates with the first guide rail to provide a moving track for the door body;
[0008] A limit locking unit, wherein the first end of the limit locking unit is arranged on the door body, and the second end of the limit locking unit is extended to the outside of the door body. A sliding end and a locking end are arranged on the second end of the limit locking unit. The sliding end can cooperate with the second guide rail and can move along the second guide rail. The locking end is a retractable structure. The limit locking unit can extend into the second guide rail through the locking end and limit lock the door body.
[0009] The present invention is further configured as follows: the positioning guide unit comprises:
[0010] Mobile component, the mobile component is used to provide a supporting platform and a moving track;
[0011] The guide assembly is arranged on the moving assembly, and the guide assembly can move along the axial direction of the moving assembly.
[0012] The present invention is further configured as follows: the mobile component comprises:
[0013] A mobile bracket is provided with a receiving cavity in the mobile bracket, a mobile guide rail is arranged in the receiving cavity, the mobile guide rail is used to provide a moving track, and a mobile slide groove is provided at the top of the mobile bracket.
[0014] The present invention is further configured as follows: the guide assembly comprises:
[0015] A moving seat, on which a guide groove is provided, through which the moving seat is arranged on a moving guide rail, and can move axially with the moving guide rail;
[0016] A guide portion, the guide portion is used to cooperate with the first guide rail and guide the door body, the first end of the guide portion is connected to the moving seat, the second end of the guide portion is extended to the outside of the moving seat, and the guide portion can move synchronously with the moving seat;
[0017] The limit block is arranged on the moving seat, and a limit slot is provided on the moving bracket, and the limit block cooperates with the limit slot to realize the limit fixation of the guide assembly;
[0018] A pushing part, wherein a first end of the pushing part is disposed on the moving seat, and a second end of the pushing part is extended to the outside of the moving seat, and the moving seat is driven by applying force to the pushing part, thereby adjusting the position of the guide part;
[0019] A positioning block, wherein a first end of the positioning block is disposed on the pushing portion, and a second end of the positioning block is extended to the outside of the pushing portion;
[0020] The positioning part is arranged on the movable bracket, and the pushing part is positioned and fixed by the positioning part cooperating with the positioning block.
[0021] The present invention is further configured as follows: the limit locking unit comprises:
[0022] A mounting assembly, the mounting assembly is arranged on the second guide rail and can move along the second guide rail, and the mounting assembly is used to provide a mobile platform;
[0023] The locking assembly is used to cooperate with the second guide rail to lock the door body. The locking assembly is provided with an adjusting assembly, and the extension and retraction of the locking assembly is controlled by the adjusting assembly.
[0024] The present invention is further configured as follows: the installation unit comprises:
[0025] An installation bracket is provided with an installation cavity for accommodating a locking assembly. A sliding portion is provided on the installation bracket. The first end of the sliding portion is provided on the installation bracket, and the second end of the sliding portion is extended to the outside of the installation bracket. The door body is moved by cooperating with the second guide rail.
[0026] The present invention is further configured as follows: the locking assembly comprises:
[0027] A locking block, one end of which is provided with a locking portion, through which the second guide rail can be locked;
[0028] A fixing member, wherein a fixing end is provided on the fixing member, the fixing end extends through the mounting bracket to the locking block, and the locking block is arranged in the mounting bracket;
[0029] An adjusting knob is arranged on the fixed end of the fixing member. The fixing member can be driven to rotate by rotating the adjusting knob, thereby driving a locking block arranged on the fixing member.
[0030] A method for using a guide locking device for a door body comprises the following steps:
[0031] A1: Install the positioning guide unit on the first end of the door body, and set the limit locking unit on the second end opposite to the positioning guide unit;
[0032] A2: Push out the guide end of the positioning guide unit so that the guide end extends into the first guide rail, and the guide end cooperates with the first guide rail to guide the door body;
[0033] A3: The limit locking unit is arranged on the second guide rail through the sliding part, and the sliding part cooperates with the second guide rail to guide the door body;
[0034] A4: When the door body needs to be locked, the locking end of the limit locking unit is pushed out and contacts the second guide rail by adjusting the knob, and the door body is limited and fixed by the locking end.
[0035] In summary, the present invention has the following beneficial effects:
[0036] 1. Improve accuracy and stability: The device uses a dual-guide design to ensure high-precision positioning and stable operation of the door during movement, effectively reducing deviation and shaking, and improving the reliability of the overall system;
[0037] 2. Enhanced safety: The design of the limit locking unit allows the user to quickly and reliably lock the door in a predetermined position to prevent it from accidentally moving or opening due to external forces;
[0038] 3. Easy operation: Users can lock and unlock the door by simply rotating the adjustment knob, without complicated tools or cumbersome steps. This intuitive and easy-to-use design improves work efficiency and reduces operating difficulty, and is particularly suitable for scenarios where frequent opening and closing of the door is required;
[0039] 4. Strong adaptability: The device has a compact structure and flexible design. It can be adjusted and optimized according to the size, weight and installation environment of different door bodies. By adjusting the position and size of each component, it can adapt to various types of door bodies and complex installation conditions to meet the personalized needs of different users. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] Figure 1 It is a schematic diagram of the assembly structure of the present invention.
[0041] Figure 2 It is a structural schematic diagram of the positioning and guiding unit of the present invention.
[0042] Figure 3 It is a structural schematic diagram of the limit locking unit of the present invention.
[0043] Figure 4 It is a schematic diagram of the assembly of the positioning guide unit of the present invention.
[0044] Figure 5 It is a schematic diagram of the assembly of the limit locking unit of the present invention.
[0045] Figure 6 It is a schematic diagram of the locking state of the limit locking unit of the present invention. DETAILED DESCRIPTION
[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with illustrations and specific embodiments.
[0047] like Figures 1 to 6As shown, a guide locking device for a door body proposed by the present invention comprises a positioning guide unit 10, wherein the first end of the positioning guide unit 10 is arranged on the door body, and the second end of the positioning guide unit 10 is extended to the outside of the door body, and the second end of the positioning guide unit 10 is a guide end, and the guide end is a retractable structure. When the guide end is in an extended state, the positioning guide unit 10 can cooperate with the first guide rail 30 through the guide end, and can move along the first guide rail 30. The positioning guide unit 10 cooperates with the first guide rail 30 to provide a moving track for the door body, ensuring that the door body maintains a stable and linear movement during the opening or closing process. When the guide end is in a retracted state, the door body can be separated from the first guide rail 30, and the extension or retraction operation of the guide end can be completed by manual control, which is convenient for the user to operate;
[0048] When in use, the first end of the positioning guide unit 10 is firmly installed on the door body to ensure that it is tightly connected with the door body, and then the guide end is aligned and installed on the first guide rail 30. After the installation is completed, the positioning guide unit 10 is debugged, and the door body is driven to move along the guide rail manually to observe whether the moving track of the door body is stable. The retractable guide end allows the door body to be easily separated from the guide rail when necessary, which is convenient for replacing, repairing or cleaning the door body. The close cooperation between the positioning guide unit 10 and the first guide rail 30 ensures the stability of the door body during movement, reduces noise and vibration, and reduces the risk of accidents or damage to the door body during use through clear guidance and stable moving track.
[0049] The limit locking unit 20, the first end of the limit locking unit 20 is arranged on the door body, the second end of the limit locking unit 20 is extended to the outside of the door body, the second end of the limit locking unit 20 is provided with a sliding end and a locking end, the sliding end can cooperate with the second guide rail 40 and can move along the second guide rail 40, the locking end is a retractable structure, the limit locking unit 20 can extend into the second guide rail 40 through the locking end, and limit lock the door body, when the locking end is in an extended state, the limit locking unit 20 can extend into the second guide rail 40 through the locking end, and limit lock the door body; when the locking end is in a retracted state, the door body can move freely along the second guide rail 40;
[0050] When in use, the first end of the limit locking unit 20 is installed on the door body, and then the second end is aligned and installed on the second guide rail 40, and the position is adjusted so that the sliding end cooperates with the guide rail. When the door body position needs to be fixed, the locking end is extended and enters the inside of the guide rail to lock the door body in the current position; when the door body needs to be moved, the locking end is retracted back to its original position, the lock on the door body is released, and the door body can move freely along the guide rail. Through the extension and retraction of the locking end, the position of the door body can be accurately controlled to ensure that the door body remains in the specified position when needed. The design of the limit locking unit 20 improves the safety of door use and prevents injuries or losses caused by accidental movement. The retractability of the locking end allows the door body to be easily locked or unlocked when needed, which is convenient for adjustment according to actual needs. Through the extension and retraction of the locking end, the precise control of the door body position can be achieved, which ensures that the door body can remain in the specified position when needed to meet different usage requirements. The locking function ensures the stability of the door body and improves the convenience and flexibility of use.
[0051] In this embodiment, the positioning and guiding unit 10 includes a moving component, which is used to provide a supporting platform and a moving track; a guiding component, which is arranged on the moving component and can move along the axial direction of the moving component;
[0052] The moving component usually has high rigidity and load-bearing capacity, and is used to support the components set on the moving component. Through precise cooperation with the moving component, the guiding component can ensure the motion trajectory of the relevant components, thereby improving the positioning accuracy and guiding accuracy of the entire system.
[0053] In this embodiment, the moving component includes a moving bracket 41. The moving bracket 41 serves as the skeleton of the entire moving component and needs to have sufficient strength and rigidity to support the load of the guide component. A accommodating cavity is provided in the moving bracket 41. A moving guide rail 42 is provided in the accommodating cavity. The moving guide rail 42 is used to provide a moving trajectory. A buffer spring is also provided in the accommodating cavity. Both ends of the buffer spring are provided on the inner wall of the moving bracket 41. During the movement of the guide component, the buffer spring is used to make the entire stroke smoother. A moving slide groove is provided at the top of the moving bracket 41. The moving slide groove cooperates with the sliding part 52 of the guide component to limit the lateral deviation of the guide component during the movement process and ensure that it moves on a predetermined trajectory.
[0054] In this embodiment, the guide assembly includes a moving seat 43, on which a guide groove is provided, and the moving seat 43 is arranged on the moving guide rail 42 through the guide groove, and can move axially with the moving guide rail 42; a guide portion 44, the guide portion 44 is used to cooperate with the first guide rail 30 and guide the door body, the first end of the guide portion 44 is connected to the moving seat 43, and the second end of the guide portion 44 is extended to the outside of the moving seat 43, and the guide portion 44 can move synchronously with the moving seat 43; a limit block 45, the limit block 45 is arranged on the moving seat 43, and a limit groove is provided on the moving bracket 41, and the limit block 45 cooperates with the limit groove to realize the limited fixation of the guide assembly; a pushing portion 46, the first end of the pushing portion 46 is arranged on the moving seat 43, and the second end of the pushing portion 46 is extended to the outside of the moving seat 43, through The movable seat 43 is driven by applying force to the pushing portion 46, thereby adjusting the position of the guide portion 44; the positioning block 47, the first end of the positioning block 47 is arranged on the pushing portion 46, the second end of the positioning block 47 is extended to the outside of the pushing portion 46, and the top of the positioning block 47 is an inclined structure; the positioning portion 48, the positioning portion 48 is arranged on the movable bracket 41, when the guide portion 44 is in a retracted state, the pushing portion 46 is positioned and fixed by the positioning portion 48 cooperating with the positioning block 47, and when the guide portion 44 is in an extended state, the pushing portion 46 is fixed by the limit block 45 cooperating with the limit groove; the guide assembly realizes the precise guiding and position adjustment functions of the guided object through the coordinated work of the movable seat 43, the guide portion 44, the limit block 45 and the limit groove, the pushing portion 46, and the positioning block 47 and the positioning portion 48.
[0055] In this embodiment, the limit locking unit 20 includes a mounting assembly, which is arranged on the second guide rail 40 and can move along the second guide rail 40, and the mounting assembly is used to provide a moving platform; a locking assembly, which is used to cooperate with the second guide rail 40 to lock the door body, and an adjusting assembly is arranged on the locking assembly, and the extension and contraction of the locking assembly is controlled by the adjusting assembly; the mounting assembly is the basis of the limit locking unit 20, which is arranged on the second guide rail 40 and can move along the second guide rail 40, so that the entire limit locking unit 20 can flexibly adjust its position on a predetermined track, and the mounting assembly not only provides a stable supporting platform for the locking assembly and the adjusting assembly, but also ensures the stability and accuracy of the entire limit locking unit 20 during movement;
[0056] After the door body reaches the predetermined position, the locking assembly is extended by operating the adjusting assembly and contacts the second guide rail 40 or the corresponding part on the door body. When the locking assembly is fully in place, it will firmly lock the door body in the current position. At this time, a manual test can be performed to confirm whether the locking is successful. If the lock needs to be released, the adjusting assembly can be operated in reverse to retract the locking assembly. The limit locking unit 20 realizes the locking and adjustment functions of the door body through the coordinated work of the installation assembly, the locking assembly and the adjusting assembly.
[0057] In this embodiment, the installation unit includes a mounting bracket 51, which has an installation cavity for accommodating a locking assembly. The mounting bracket 51 is provided with a sliding portion 52, the first end of the sliding portion 52 is provided on the mounting bracket 51, and the second end of the sliding portion 52 is extended to the outside of the mounting bracket 51. The sliding portion 52 cooperates with the second guide rail 40 to move the door body. The mounting bracket 51 not only provides a stable installation environment for the locking assembly, but also realizes cooperation with the second guide rail 40. The mounting bracket 51 can withstand the pressure of the door body during the movement, thereby ensuring the smooth operation of the door body.
[0058] In this embodiment, the locking assembly includes a locking block 53, one end of which is provided with a locking portion, through which the second guide rail 40 can be locked; a fixing member 54, on which a fixing end is provided, which passes through the mounting bracket 51 and extends into the locking block 53, and the locking block 53 is arranged in the mounting bracket 51; an adjusting knob 55, which is arranged on the fixing end of the fixing member 54, and the fixing member 54 can be driven to rotate by rotating the adjusting knob 55, thereby driving the locking block 53 arranged on the fixing member 54. The design of the mounting unit is compact and occupies little space. The stable design of the mounting bracket 51 and the sliding portion 52 ensures the stability and accuracy of the door body during movement, and the movement or locking of the door body can be achieved through simple operation.
[0059] When in use, install the locking assembly in the installation cavity and check whether it is installed in place, install the second guide rail 40 in the corresponding position, and ensure that it can cooperate smoothly with the sliding part 52, check the parallelism and verticality of the guide rail to ensure the accuracy of the door body during the movement, and ensure that the door body can move with the movement of the sliding part 52.
[0060] A method for using a guide locking device for a door body comprises the following steps:
[0061] A1: Install the positioning guide unit on the first end of the door body, and set the limit locking unit on the second end opposite to the positioning guide unit;
[0062] A2: Push out the guide end of the positioning guide unit so that the guide end extends into the first guide rail, and the guide end cooperates with the first guide rail to guide the door body;
[0063] A3: The limit locking unit is arranged on the second guide rail through the sliding part, and the sliding part cooperates with the second guide rail to guide the door body;
[0064] A4: When the door body needs to be locked, the locking end of the limit locking unit is pushed out and contacts the second guide rail by adjusting the knob, and the door body is limited and fixed by the locking end.
[0065] In summary, the present invention ensures the accuracy and stability of the door body during movement through the dual guide design of the positioning guide unit and the limit locking unit, effectively reduces deviation and shaking, and the limit locking unit can quickly and reliably lock the door body in a predetermined position to prevent it from accidentally moving due to external force, thereby improving safety. The user can lock and unlock the door body by rotating the adjustment knob, without the need for complicated tools and steps, thereby improving ease of use. The device is suitable for various types of door bodies and installation environments, and can meet the needs of different users by adjusting the position and size of each component.
[0066] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "connection" and the like should be understood in a broad sense, for example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In this document, the terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of elements other than those listed and may also include additional elements not expressly listed.
[0067] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.
Claims
1. A guide locking device for a door body, characterized in that: include, A positioning guide unit, wherein the first end of the positioning guide unit is arranged on the door body, the second end of the positioning guide unit is extended to the outside of the door body, the second end of the positioning guide unit is a guide end, the guide end is a retractable structure, the positioning guide unit cooperates with the first guide rail through the guide end, and can move along the first guide rail, and the positioning guide unit cooperates with the first guide rail to provide a moving track for the door body; A limit locking unit, wherein the first end of the limit locking unit is arranged on the door body, the second end of the limit locking unit is extended to the outside of the door body, a sliding end and a locking end are arranged on the second end of the limit locking unit, the sliding end can cooperate with the second guide rail and can move along the second guide rail, the locking end is a retractable structure, the limit locking unit can extend into the second guide rail through the locking end, and limit lock the door body; The positioning and guiding unit includes a moving component, which is used to provide a supporting platform and a moving track; A guide assembly, the guide assembly is arranged on the moving assembly, and the guide assembly can move along the axial direction of the moving assembly; The moving assembly comprises a moving bracket, a receiving cavity is provided in the moving bracket, a moving guide rail is provided in the receiving cavity, the moving guide rail is used to provide a moving track, and a moving slide groove is provided at the top of the moving bracket; The guide assembly includes a moving seat, a guide groove is provided on the moving seat, the moving seat is arranged on the moving guide rail through the guide groove, and can move axially with the moving guide rail; A guide portion, the guide portion is used to cooperate with the first guide rail and guide the door body, the first end of the guide portion is connected to the moving seat, the second end of the guide portion is extended to the outside of the moving seat, and the guide portion can move synchronously with the moving seat; The limit block is arranged on the moving seat, and a limit slot is provided on the moving bracket, and the limit block cooperates with the limit slot to realize the limit fixation of the guide assembly; A pushing part, wherein a first end of the pushing part is disposed on the moving seat, and a second end of the pushing part is extended to the outside of the moving seat, and the moving seat is driven by applying force to the pushing part, thereby adjusting the position of the guide part; A positioning block, wherein a first end of the positioning block is disposed on the pushing portion, and a second end of the positioning block is extended to the outside of the pushing portion; The positioning part is arranged on the movable bracket, and the pushing part is positioned and fixed by the positioning part cooperating with the positioning block.
2. A guide locking device for a door according to claim 1, characterized in that: The limit locking unit includes: A mounting assembly, the mounting assembly is arranged on the second guide rail and can move along the second guide rail, and the mounting assembly is used to provide a mobile platform; The locking assembly is used to cooperate with the second guide rail to lock the door body. The locking assembly is provided with an adjusting assembly, and the extension and retraction of the locking assembly is controlled by the adjusting assembly.
3. A guide locking device for a door according to claim 2, characterized in that: The installation unit includes, An installation bracket is provided with an installation cavity for accommodating a locking assembly. A sliding portion is provided on the installation bracket. The first end of the sliding portion is provided on the installation bracket, and the second end of the sliding portion is extended to the outside of the installation bracket. The door body is moved by cooperating with the second guide rail.
4. A guide locking device for a door according to claim 3, characterized in that: The locking assembly includes, A locking block, one end of which is provided with a locking portion, through which the second guide rail can be locked; A fixing member, wherein a fixing end is provided on the fixing member, the fixing end extends through the mounting bracket to the locking block, and the locking block is arranged in the mounting bracket; An adjusting knob is arranged on the fixed end of the fixing member. The fixing member can be driven to rotate by rotating the adjusting knob, thereby driving a locking block arranged on the fixing member.
5. A method for using a guide locking device for a door according to any one of claims 1 to 4, characterized in that: The following steps are involved: A1: Install the positioning guide unit on the first end of the door body, and set the limit locking unit on the second end opposite to the positioning guide unit; A2: Push out the guide end of the positioning guide unit so that the guide end extends into the first guide rail, and the guide end cooperates with the first guide rail to guide the door body; A3: The limit locking unit is arranged on the second guide rail through the sliding part, and the sliding part cooperates with the second guide rail to guide the door body; A4: When the door body needs to be locked, the locking end of the limit locking unit is pushed out and contacts the second guide rail by adjusting the knob, and the door body is limited and fixed by the locking end.
Citation Information
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