Mechanical lock for distribution box
By designing a mechanical lock for power distribution box, the key drives the lock core to rotate and injects lubricating oil, the problem of the distribution box lock being susceptible to water vapor erosion outdoors is solved, and the long-term stability and convenient opening and closing of the lock is achieved.
Patent Information
- Application Number
- CN202422255513.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
When the distribution box is configured outdoors, the lock is susceptible to water vapor erosion, resulting in inconvenient opening and closing.
A mechanical lock for power distribution box is designed, including installation pads, lock sleeves, oil chambers, oil drain pipes and valve cores. The lock core is driven by the key to rotate, pull the oil drain baffle, and pull the valve core to inject oil into the ammunition groove to prevent internal rust.
It effectively prevents rust inside the lock, ensuring long-term stability and convenient opening and closing of the lock.
Smart Images
Figure CN223048604U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mechanical locks, in particular to a mechanical lock for a distribution box. Background Art
[0002] A distribution box is an electrical equipment, which has the characteristics of small volume, simple installation, special technical performance, fixed position, unique configuration function, not restricted by the site, relatively common application, stable and reliable operation, high space utilization rate, less land occupation and environmental protection effect. Generally, the distribution box is composed of a low-voltage electrical wiring, and it is required to assemble switch equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or screen, forming a low-voltage distribution box. Usually, a flap-type lock is used to lock the distribution box.
[0003] However, when the distribution box is configured outdoors, the inside of the lock is prone to rust due to water vapor erosion, so subsequent opening and closing are relatively inconvenient. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a mechanical lock for a distribution box, which solves the problems mentioned in the above background.
[0005] The utility model provides the following technical solutions: a mechanical lock for a distribution box, including an installation backing plate, a lock sleeve is installed on the rear surface of the installation backing plate, an oil storage is installed on the rear surface of the installation backing plate above the lock sleeve, a spring groove is opened on the upper surface of the lock sleeve, an oil discharge pipe is installed on the lower surface of the oil storage corresponding to the position of the spring groove, a valve core is arranged inside the oil discharge pipe, a spring is connected between the valve core and the oil discharge pipe, a movable shaft is installed at the axial center position of the oil storage, a pull rope is connected between the upper end of the valve core and the movable shaft, and an oil discharge blocking piece is installed at the outer end of the movable shaft.
[0006] As a further scheme of the utility model: a lock core is installed inside the lock sleeve, a lever is installed on the upper surface of the lock core on one side of the oil discharge blocking piece, and an oil injection hole is installed on the upper surface of the oil storage.
[0007] As a further scheme of the utility model: a lock hole is installed at one end of the lock core close to the front surface of the installation backing plate, and a lock core blocking piece is installed at the other end of the lock core.
[0008] As a further scheme of the utility model: the movable shaft is movably connected with the oil storage, and the oil discharge blocking piece is fixedly connected with the movable shaft.
[0009] As a further scheme of the utility model: the valve core is clamped with the oil discharge pipe, and the valve core is fixedly connected with the oil discharge pipe through the spring.
[0010] As a further solution of the utility model: the lever is fixedly connected to the lock core, and the oil filling hole is through-connected to the oil tank.
[0011] As a further solution of the utility model: the elastic groove is connected with the locking sleeve.
[0012] As a further solution of the present invention: the lock core baffle is fixedly connected to the lock core by bolts.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The key will lift the pin inside the lock core toward the inside of the bullet groove, and after the limit is disconnected, the key will be controlled to drive the lock hole as a whole to drive the lock core to rotate inside the lock sleeve, and the lever outside the lock core will push the oil drain baffle at the end of the movable shaft, and the rotating movable shaft will wind the pull rope as a whole, and the pull rope will pull the valve core to move upward inside the oil drain pipe, and the oil inside the oil tank will be injected into the inside of the bullet groove to prevent internal rust.
[0015] When the lock core rotates as a whole, the lever on the outside of the lock core will move the oil drain baffle at the end of the movable shaft. After the lever moves the oil drain baffle to a horizontal state, it will reset. At the same time, the spring will pull the valve core to reset, thereby cutting off the oil supply. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a mechanical lock for a distribution box;
[0017] Figure 2 This is a back view of a mounting plate in a mechanical lock for a distribution box;
[0018] Figure 3 This is a schematic diagram of the internal structure of an oil tank in a mechanical lock for a distribution box;
[0019] Figure 4 The present invention is a side view of the whole device of a mechanical lock for a distribution box.
[0020] In the figure: 1. mounting plate; 2. lock hole; 3. lock sleeve; 4. lock core; 5. lock core baffle; 6. oil tank; 7. oil filling hole; 301. spring groove; 401. lever; 601. movable shaft; 602. oil drain baffle; 603. oil drain pipe; 604. pull rope; 605. valve core; 606. spring. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0022] As Figures 1-4 shown, this embodiment provides a mechanical lock for a distribution box, including a mounting base plate 1. A lock sleeve 3 is installed on the rear surface of the mounting base plate 1. An oil storage tank 6 is installed on the rear surface of the mounting base plate 1 above the lock sleeve 3. A bullet groove 301 is formed on the upper surface of the lock sleeve 3. An oil discharge pipe 603 is installed on the lower surface of the oil storage tank 6 corresponding to the position of the bullet groove 301. A valve core 605 is arranged inside the oil discharge pipe 603. The valve core 605 is clamped with the oil discharge pipe 603. A spring 606 is connected between the valve core 605 and the oil discharge pipe 603. The valve core 605 is fixedly connected with the oil discharge pipe 603 through the spring 606. A movable shaft 601 is installed at the axial center position of the oil storage tank 6. The movable shaft 601 is movably connected with the oil storage tank 6. A pull rope 604 is connected between the upper end of the valve core 605 and the movable shaft 601. An oil discharge blocking piece 602 is installed at the outer end of the movable shaft 601. The oil discharge blocking piece 602 is fixedly connected with the movable shaft 601.
[0023] As Figures 2-3 shown, in this embodiment, a lock core 4 is installed inside the lock sleeve 3. A dial rod 401 is installed on the upper surface of the lock core 4 on one side of the oil discharge blocking piece 602. The dial rod 401 is fixedly connected with the lock core 4. An oil injection hole 7 is installed on the upper surface of the oil storage tank 6. The oil injection hole 7 is communicated with the oil storage tank 6. A lock hole 2 is installed at one end of the lock core 4 close to the front surface of the mounting base plate 1. A lock core retaining piece 5 is installed at the other end of the lock core 4. The lock core retaining piece 5 is fixedly connected with the lock core 4 through a bolt.
[0024] The working principle of the utility model is as follows: when in use, the mounting pad 1 is assembled on the cabinet door of the distribution box as a whole, and lubricating oil is injected into the oil tank 6 from the position of the oil filling hole 7. When in use, after the key is inserted from the lock hole 2 into the lock sleeve 3, the key will lift the pin inside the lock cylinder 4 to the inside of the spring groove 301, and then the limit of the lock sleeve 3 and the lock cylinder 4 will be disconnected. Then, the key is controlled to drive the lock hole 2 as a whole to drive the lock cylinder 4 to rotate inside the lock sleeve 3, and the lock cylinder 4 as a whole will drive the lock cylinder baffle 5 to rotate to achieve the purpose of opening and closing. At the same time, when the lock cylinder 4 rotates as a whole, the lever outside the lock cylinder 4 401 will move the oil drain baffle 602 at the end of the movable shaft 601, and after the lever 401 moves the oil drain baffle 602 to a horizontal state, it will reset. At the same time, the spring 606 will pull the valve core 605 to reset, thereby disconnecting the oil supply. The moved movable shaft 601 will rotate as a whole inside the oil tank 6, and the rotating movable shaft 601 will wind the pull rope 604 as a whole. The pull rope 604 will pull the valve core 605 to move upward inside the oil drain pipe 603, and the oil inside the oil tank 6 will be injected into the inside of the spring groove 301, and when the lock core 4 is controlled to reset and rotate, the oil will be evenly applied to the gap between the lock sleeve 3 and the lock core 4.
[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mechanical lock for a distribution box, comprising a mounting plate (1), characterized in that: A lock sleeve (3) is mounted on the rear surface of the mounting pad (1); an oil bin (6) is mounted above the lock sleeve (3) and located on the rear surface of the mounting pad (1); a spring groove (301) is provided on the upper surface of the lock sleeve (3); an oil drain pipe (603) is mounted on the lower surface of the oil bin (6) at a position corresponding to the spring groove (301); a valve core (605) is arranged on the inner side of the oil drain pipe (603); a spring (606) is connected between the valve core (605) and the oil drain pipe (603); a movable shaft (601) is mounted at the axial center of the oil bin (6); a pull rope (604) is connected between the upper end of the valve core (605) and the movable shaft (601); and an oil drain baffle (602) is mounted on the outer end of the movable shaft (601).
2. A mechanical lock for a distribution box according to claim 1, characterized in that: A lock core (4) is installed inside the lock sleeve (3), a lever (401) is installed on the upper surface of the lock core (4) at one side of the oil drain baffle (602), and an oil filling hole (7) is installed on the upper surface of the oil bin (6).
3. A mechanical lock for a distribution box according to claim 2, characterized in that: A lock hole (2) is installed at one end of the lock core (4) located close to the front surface of the mounting pad (1), and a lock core baffle (5) is installed at the other end of the lock core (4).
4. A mechanical lock for a distribution box according to claim 1, characterized in that: The movable shaft (601) is movably connected to the oil bin (6), and the oil drain baffle (602) is fixedly connected to the movable shaft (601).
5. A mechanical lock for a distribution box according to claim 1, characterized in that: The valve core (605) is clamped with the oil drain pipe (603), and the valve core (605) is fixedly connected to the oil drain pipe (603) via the spring (606).
6. A mechanical lock for a distribution box according to claim 2, characterized in that: The lever (401) is fixedly connected to the lock core (4), and the oil filling hole (7) is connected to the oil tank (6).
7. A mechanical lock for a distribution box according to claim 1, characterized in that: The elastic groove (301) is connected through the locking sleeve (3).
8. A mechanical lock for a distribution box according to claim 3, characterized in that: The lock core baffle (5) is fixedly connected to the lock core (4) via bolts.