An appliance cabinet door lock

Abstract

This application relates to an electrical cabinet door lock, belonging to the technical field of electrical cabinet equipment. It includes a cabinet body and a lock body. Two doors are movably connected to the front of the cabinet body, and the lock body is mounted on the doors. This application utilizes a knob and mounting blocks. When installing the lock body, the user places it into a mounting hole on the door body. Rotating the knob causes the transmission rod to drive the worm gear. Through the meshing of the worm gear and worm wheel, the rotating shaft rotates synchronously. The rotation of the rotating shaft drives the threaded rod to move axially within the threaded cylinder, thereby pushing the mounting block to slide within the contraction groove. After sliding out, the mounting block, limited by the two mounting blocks, allows the user to easily fix the lock body to the door body, thus facilitating installation and solving the problem of requiring additional tools and being time-consuming and laborious to install.

Description

Technical Field

[0001] This application relates to electrical cabinet equipment, and more particularly to an electrical cabinet door lock. Background Technology

[0002] Electrical cabinets are characterized by their small size, easy installation, special technical performance, fixed location, unique configuration functions, lack of site restrictions, wide application, stable and reliable operation, high space utilization, small footprint, and environmental benefits. They can rationally distribute electrical energy, facilitate the opening and closing of circuits, have a high level of safety protection, and can intuitively display the circuit's conduction status.

[0003] A current patent (publication number: CN218265472U) discloses a push-button type flat lock, including a lock shell with a receiving groove, a handle, a locking mechanism, a rotating shaft, and a bolt. The locking mechanism includes a mounting shell, which is installed in the receiving groove by fasteners; a lock cylinder unit, which is movably installed in the mounting shell; and an unlocking mechanism, which is movably installed in the mounting shell and connected to the lock cylinder for transmission, and locks in cooperation with the moving end of the handle. In daily use, by adopting the above technical solution, the lock cylinder unit is not installed on the moving end of the handle, which reduces the mass of the moving end of the handle, reduces its inertia, and improves the structural stability.

[0004] Although the device in the aforementioned comparative document solves the problem of the small number of insert slots and low utilization rate in the lock cylinder, it requires the use of bolts and limiting plates to fix the lock body to the door when installing and using the device. Installation requires the use of other tools and is time-consuming and laborious. In order to solve the above problems, an electrical cabinet door lock is proposed. Utility Model Content

[0005] The purpose of this application is to provide an appliance cabinet door lock with advantages such as an installation structure, which solves the problem that the lock body needs to be installed with other tools, making the operation time-consuming and laborious.

[0006] The appliance cabinet door lock provided in this application adopts the following technical solution: it includes a cabinet body and a lock body, wherein two doors are movably connected to the front of the cabinet body, and the lock body is installed and connected to the doors;

[0007] The lock body has a rotating groove inside. A rotating shaft is tightly nested inside the rotating groove via bearings. A rotating plate is installed and connected to one end of the rotating shaft, and a U-shaped plate is fixedly connected to the other end. A rotating rod is tightly nested inside the U-shaped plate via bearings. A rotating block is fixedly connected to the back of the rotating rod, and a door handle is fixedly connected to the side of the rotating block. Two contraction grooves are opened inside the rotating groove, and an engagement groove is opened between the two contraction grooves. An installation block is slidably connected inside the contraction groove. A rotating shaft is tightly nested between the contraction groove and the engagement groove via bearings. A threaded cylinder is fixedly connected inside the installation block. Threaded rods are fixedly connected to both ends of the rotating shaft. One end of the threaded rod is threaded into the threaded cylinder. A worm gear is fixedly connected to the surface of the rotating shaft. A transmission rod is tightly nested inside the engagement groove via bearings. A worm is fixedly connected to the surface of the transmission rod. The worm gear and the worm mesh with each other. One end of the transmission rod rotates through the back of the lock body and is fixedly connected to a knob.

[0008] By adopting the above technical solution, and by setting up structures such as a rotating groove, rotating shaft, rotating plate, U-shaped plate, rotating rod, rotating block, door handle, contraction groove, meshing groove, mounting block, rotating shaft, threaded cylinder, threaded rod, worm gear, transmission rod, worm, and knob, precise control and security protection of the door lock can be achieved. When installing the lock body, it is installed in the mounting hole on the door body. Then, rotating the knob causes the transmission rod to drive the worm gear to rotate. Through the meshing of the worm gear and worm wheel, the rotating shaft can rotate synchronously. The rotation of the rotating shaft drives the threaded rod... The threaded cylinder moves axially, pushing the mounting block to slide within the contraction groove. Once the mounting block slides out of the contraction groove, it is easily fixed to the door by the limiting position of the two mounting blocks, thus facilitating the installation of the lock body. The cooperation between the rotating plate and the rotating shaft makes the operation of the door handle smoother. At the same time, the tight nesting of the bearings effectively reduces mechanical wear. The U-shaped plate design not only enhances the overall strength of the lock body but also provides stable support for the rotating rod, preventing structural loosening caused by external forces.

[0009] Preferably, a limiting block is fixedly connected to the inner side of the mounting block;

[0010] By adopting the above technical solution and setting a limit block, it is possible to effectively prevent the installation block from shifting or rotating when sliding in the shrinkage groove, thereby ensuring that the installation block can slide out of the shrinkage groove accurately.

[0011] Preferably, two sliding rods are fixedly connected to the inner side of the shrinkage groove, and two sliding holes are opened inside the mounting block, with one end of each sliding rod slidably connected to a sliding hole.

[0012] By adopting the above technical solution and by setting the cooperation of sliding rod and sliding hole, the stability of the mounting block sliding in the shrinkage groove can be further improved, and jamming or misalignment caused by external impact or vibration can be avoided, and the precise axial displacement of the mounting block can be achieved.

[0013] Preferably, a torsion spring is fitted onto the surface of the rotating shaft, and the two ends of the torsion spring are respectively fixedly connected to the side of the rotating block and the side of the U-shaped plate;

[0014] By adopting the above technical solution and setting a torsion spring, the rotating shaft can be provided with an automatic reset function. When the external force is removed, the elastic effect of the torsion spring can make the door handle quickly return to the initial position, thereby improving the convenience of use.

[0015] Preferably, the door handle is provided with a key lock inside, the key lock is provided with a rotating block inside, and a fixing block is fixedly connected to the inner side of the rotating block;

[0016] By adopting the above technical solution and combining a key lock with a rotating stop, the security performance of the door lock can be effectively improved, preventing unauthorized opening operations.

[0017] Preferably, a limiting groove is formed inside the fixing block, and one end of the rotating block is engaged in the limiting groove;

[0018] By adopting the above technical solution, and by setting the limit groove and the rotating block in combination, the stability and reliability of the door lock can be further enhanced. When the rotating block is engaged in the limit groove, it can effectively limit the movement range of the rotating block and avoid the door handle from being accidentally rotated due to external force, thereby improving the safety of the overall structure.

[0019] Preferably, the bottom of the door handle is provided with a positioning hole, and the inside of the fixing block is provided with a positioning groove;

[0020] By adopting the above technical solution and by setting the positioning hole and positioning groove, the connection accuracy between the door handle and the fixing block can be further improved, ensuring the stability and consistency of the two during the assembly process.

[0021] Preferably, a positioning spring is fixedly connected to the inner side of the positioning groove, an L-shaped positioning block is fixedly connected to one end of the positioning spring, one end of the L-shaped positioning block slides through the positioning groove and is engaged in the positioning hole, and a toggle plate is fixedly connected to the side of the L-shaped positioning block.

[0022] By adopting the above technical solution, and by setting up the cooperation between the positioning spring and the L-shaped positioning block, when the L-shaped positioning block is inserted into the positioning hole under the elastic force of the positioning spring, it can effectively prevent the door handle from loosening or shifting due to external force, thereby improving the stability and safety of the overall structure. Through the design of the toggle plate, the L-shaped positioning block can be easily adjusted manually so that it can be quickly disengaged from the positioning hole when needed.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] This type of appliance cabinet door lock, using a knob and mounting blocks, allows for easy installation. The lock body is installed into a mounting hole on the door. Rotating the knob causes the transmission rod to drive the worm gear. Through the meshing of the worm gear and worm wheel, the rotating shaft rotates synchronously. This rotation drives a threaded rod to move axially within a threaded cylinder, pushing the mounting block to slide within a contraction groove. Once the mounting block has slid out of the groove, it is secured to the door by the two mounting blocks, facilitating installation and solving the problem of requiring additional tools and being time-consuming and laborious. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of the cabinet as seen from the front in this application;

[0026] Figure 2 This is a schematic diagram of the lock body from the front view in this application;

[0027] Figure 3 This is a side view of the lock body structure in this application;

[0028] Figure 4 This is a structural schematic diagram of the lock body in frontal cross-section in this application;

[0029] Figure 5 This is a structural schematic diagram of the cross-section of the shrinkage channel in this application;

[0030] Figure 6 for Figure 5 A magnified cross-sectional view of the structure at point A in the middle.

[0031] In the picture:

[0032] 1. Cabinet body; 101. Door body;

[0033] 2. Lock body; 201. Rotating groove; 202. Rotating shaft; 203. Rotating plate; 204. U-shaped plate; 205. Rotating rod; 206. Rotating block; 207. Door handle; 208. Torsion spring; 209. Rotating stop block; 2010. Fixing block; 2011. Limiting groove; 2012. Positioning hole; 2013. Positioning groove; 2014. Positioning spring; 2015. L-shaped positioning block; 2016. Actuating plate; 2017. Contraction groove; 2018. Engaging groove; 2019. Mounting block; 2020. Limiting block; 2021. Rotating shaft; 2022. Threaded rod; 2023. Threaded cylinder; 2024. Worm gear; 2025. Transmission rod; 2026. Worm; 2027. Knob; 2028. Slide rod; 2029. Slide hole; 2030. Key lock. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0035] Example 1: An appliance cabinet door lock, referring to... Figure 1 , Figure 2 , Figure 5 and Figure 6 It includes a cabinet body 1 and a lock body 2. The front of the cabinet body 1 is movably connected to two doors 101, and the lock body 2 is installed and connected to the doors 101.

[0036] The lock body 2 has a rotating groove 201 inside. A rotating shaft 202 is tightly nested inside the rotating groove 201 via bearings. A rotating plate 203 is installed and connected to one end of the rotating shaft 202, and a U-shaped plate 204 is fixedly connected to the other end. A rotating rod 205 is tightly nested inside the U-shaped plate 204 via bearings. A rotating block 206 is fixedly connected to the back of the rotating rod 205, and a door handle 207 is fixedly connected to the side of the rotating block 206. Two contraction grooves 2017 are formed inside the rotating groove 201, and an engagement groove 2018 is formed between the two contraction grooves 2017. An installation block 2019 is slidably connected inside the contraction groove 2017. A rotating shaft 2021 is tightly nested between the contraction groove 2017 and the engagement groove 2018 via bearings. The mounting block 2019 has a threaded cylinder 2023 fixedly connected inside. Threaded rods 2022 are fixedly connected to both ends of the rotating shaft 2021. One end of the threaded rod 2022 is threaded into the threaded cylinder 2023. A worm gear 2024 is fixedly connected to the surface of the rotating shaft 2021. A transmission rod 2025 is tightly nested within the inner side of the meshing groove 2018 via bearings. A worm gear 2026 is fixedly connected to the surface of the transmission rod 2025. The worm gear 2024 and worm gear 2026 mesh with each other. One end of the transmission rod 2025 rotates through the back of the lock body 2 and is fixedly connected to a knob 2027. The system incorporates a rotating groove 201, rotating shaft 202, rotating plate 203, U-shaped plate 204, rotating rod 205, rotating block 206, door handle 207, and retraction groove 2028. The structure, including the meshing groove 2018, mounting block 2019, rotating shaft 2021, threaded cylinder 2023, threaded rod 2022, worm gear 2024, transmission rod 2025, worm 2026, and knob 2027, enables precise control and security protection of the door lock. When installing the lock body 2, it is installed in the mounting hole on the door body 101. Then, the knob 2027 is rotated, causing the transmission rod 2025 to drive the worm 2026 to rotate. Through the meshing of the worm 2026 and worm gear 2024, the rotating shaft 2021 rotates synchronously. The rotation of the rotating shaft 2021 drives the threaded rod 2022 to move axially within the threaded cylinder 2023, thereby pushing the mounting block 2019 in the contraction groove. The mounting block 2019 slides out of the contraction groove 2017 by sliding within the groove. After sliding out, the two mounting blocks 2019 limit the movement, making it easy to fix the lock body 2 onto the door 101, thus facilitating the installation of the lock body 2. A limiting block 2020 is fixedly connected to the inner side of the mounting block 2019. By setting the limiting block 2020, it is possible to effectively prevent the mounting block 2019 from shifting or rotating while sliding within the contraction groove 2017, thereby ensuring that the mounting block 2019 can slide out of the contraction groove 2017 accurately. Two sliding rods 2028 are fixedly connected to the inner side of the contraction groove 2017. Two sliding holes 2029 are formed inside the mounting block 2019, and one end of each sliding rod 2028 is slidably connected to a sliding hole 2029.By configuring the sliding rod 2028 and the sliding hole 2029, the stability of the mounting block 2019 sliding within the shrinkage groove 2017 can be further improved. This avoids jamming or misalignment caused by external impacts or vibrations, and allows for precise axial displacement of the mounting block 2019.

[0037] Please see Figure 5 A torsion spring 208 is fitted on the surface of the rotating shaft 202. The two ends of the torsion spring 208 are fixedly connected to the side of the rotating block 206 and the side of the U-shaped plate 204, respectively. By setting the torsion spring 208, the rotating shaft 202 can be provided with an automatic reset function. When the external force is removed, the elasticity of the torsion spring 208 can make the door handle 207 quickly return to the initial position, thereby improving the convenience of use.

[0038] Please see Figure 4 The door handle 207 has a key lock 2030 inside, and a rotating stop 209 inside the key lock 2030. A fixing block 2010 is fixedly connected to the inner side of the rotating block 206. By setting the key lock 2030 and the rotating stop 209 together, the security performance of the door lock can be effectively improved and unauthorized opening operations can be prevented. The fixing block 2010 has a limit groove 2011 inside, and one end of the rotating stop 209 is engaged in the limit groove 2011. By setting the limit groove 2011 and the rotating stop 209 together, the stability and reliability of the door lock can be further enhanced. When the rotating stop 209 is engaged in the limit groove 2011, it can effectively limit the movement range of the rotating block 206 and prevent the door handle 207 from rotating accidentally due to external force, thereby improving the overall structural security.

[0039] Please see Figure 2 and Figure 4 The door handle 207 has a positioning hole 2012 at its bottom, and the fixing block 2010 has a positioning groove 2013 inside. By setting the positioning hole 2012 and the positioning groove 2013 together, the connection accuracy between the door handle 207 and the fixing block 2010 can be further improved, ensuring the stability and consistency of the two during assembly. A positioning spring 2014 is fixedly connected to the inner side of the positioning groove 2013. One end of the positioning spring 2014 is fixedly connected to an L-shaped positioning block 2015. One end of the L-shaped positioning block 2015 slides through the positioning groove 2013 and is engaged. The L-shaped positioning block is fixedly connected to the side of the positioning hole 2012 with a toggle plate 2016. By setting the positioning spring 2014 and the L-shaped positioning block 2015 in cooperation, when the L-shaped positioning block 2015 is inserted into the positioning hole 2012 under the elastic force of the positioning spring 2014, it can effectively prevent the door handle 207 from loosening or shifting due to external force, thereby improving the stability and safety of the overall structure. Through the design of the toggle plate 2016, the L-shaped positioning block 2015 can be easily manually adjusted so that it can be quickly disengaged from the positioning hole 2012 when needed.

[0040] The implementation principle of this application embodiment is as follows:

[0041] In use, the cabinet body 1 and the door body 101 are first assembled to ensure that the door body 101 can open and close flexibly without obvious gaps. Then, the lock body 2 is installed in the designated position on the door body 101, aligning it with the mounting hole on the door body 101. After alignment, the knob 2027 is rotated to make the transmission rod 2025 drive the worm gear 2026 to rotate. Then, the worm gear 2026 meshes with the worm wheel 2024, causing the rotating shaft 2021 to rotate synchronously. This drives the threaded rod 2022 to move axially within the threaded cylinder 2023. This operation pushes the mounting block 2019 out of the shrink groove 2017 until the mounting block 2019 is completely slid out. After sliding out, the two mounting blocks 2019 can fix the position of the lock body 2 on the door body 101, thus completing the fixation of the lock body 2.

[0042] When it is necessary to open the door 101, people can control the position of the rotating block 209 through the key lock 2030. When the key is inserted and turned, the rotating block 209 can disengage from the limiting groove 2011. Then, people pull the toggle plate 2016 to make the L-shaped positioning block 2015 disengage from the positioning hole 2012. After disengagement, the door handle 207 can rotate freely. People can unscrew the door handle 207 from the rotating groove 201 and then rotate the door handle 207 to open the door 101.

[0043] In daily use, the torsion spring 208 allows the door handle 207 to automatically reset after operation, reducing the hassle of manual adjustment. If it is necessary to disassemble or maintain the lock body 2, simply rotate the knob 2027 in the opposite direction to retract the threaded rod 2022, and the mounting block 2019 will retract into the retraction groove 2017, making it easy to remove the lock body 2.

[0044] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An electrical cabinet door lock comprising a cabinet body (1) and a lock body (2), characterized in that: The cabinet (1) has two doors (101) movably connected to its front, and the lock (2) is installed on the doors (101); The lock body (2) has a rotating groove (201) inside. A rotating shaft (202) is tightly nested inside the rotating groove (201) via bearings. A rotating plate (203) is installed and connected to one end of the rotating shaft (202), and a U-shaped plate (204) is fixedly connected to the other end of the rotating shaft (202). A rotating rod (205) is tightly nested inside the U-shaped plate (204) via bearings. A rotating block (206) is fixedly connected to the back of the rotating rod (205), and a door handle (207) is fixedly connected to the side of the rotating block (206). Two contraction grooves (2017) are opened inside the rotating groove (201), and an engagement groove (2018) is opened between the two contraction grooves (2017). An installation block (2019) is slidably connected inside the contraction groove (2017). A rotating shaft (2021) is tightly nested between the groove (2017) and the meshing groove (2018) via bearings. A threaded cylinder (2023) is fixedly connected inside the mounting block (2019). Threaded rods (2022) are fixedly connected to both ends of the rotating shaft (2021). One end of the threaded rod (2022) is threaded into the threaded cylinder (2023). A worm gear (2024) is fixedly connected to the surface of the rotating shaft (2021). A transmission rod (2025) is tightly nested inside the meshing groove (2018) via bearings. A worm (2026) is fixedly connected to the surface of the transmission rod (2025). The worm gear (2024) and the worm (2026) mesh with each other. One end of the transmission rod (2025) rotates through the back of the lock body (2) and is fixedly connected to a knob (2027).

2. An electrical cabinet door lock according to claim 1, characterized in that: The mounting block (2019) has a limiting block (2020) fixedly connected to its inner side.

3. The appliance cabinet door lock according to claim 1, characterized in that: Two sliding rods (2028) are fixedly connected to the inner side of the shrinkage groove (2017), and two sliding holes (2029) are opened inside the mounting block (2019). One end of the sliding rod (2028) is slidably connected to the sliding hole (2029).

4. The appliance cabinet door lock according to claim 1, characterized in that: The rotating shaft (202) is fitted with a torsion spring (208), and the two ends of the torsion spring (208) are fixedly connected to the side of the rotating block (206) and the side of the U-shaped plate (204), respectively.

5. An appliance cabinet door lock according to claim 1, characterized in that: The door handle (207) is equipped with a key lock (2030), the key lock (2030) is equipped with a rotating block (209), and the rotating block (206) is fixedly connected to a fixing block (2010) on its inner side.

6. An appliance cabinet door lock according to claim 5, characterized in that: The fixed block (2010) has a limiting groove (2011) inside, and one end of the rotating block (209) is engaged in the limiting groove (2011).

7. An appliance cabinet door lock according to claim 5, characterized in that: The door handle (207) has a positioning hole (2012) at its bottom, and the fixing block (2010) has a positioning groove (2013) inside.

8. An appliance cabinet door lock according to claim 7, characterized in that: A positioning spring (2014) is fixedly connected to the inner side of the positioning groove (2013). An L-shaped positioning block (2015) is fixedly connected to one end of the positioning spring (2014). One end of the L-shaped positioning block (2015) slides through the positioning groove (2013) and is engaged in the positioning hole (2012). A toggle plate (2016) is fixedly connected to the side of the L-shaped positioning block (2015).

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