Switch safety lock
By designing a switch safety lock including bottom plate, sheath and lock, using the lock ring and limit strip structure, independent control of a single switch is achieved, solving the problem of difficulty in switching control in the prior art, and ensuring the production process Continuity.
Patent Information
- Application Number
- CN202411228751.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-01-03
AI Technical Summary
The prior art is difficult to achieve independent control of a single switch, which leads to the inability to control the switch separately during the production process when the emergency stop switch of the packaging table is on and off before sawing, resulting in production interruption.
A switch safety lock including a base plate, sheath and lock is designed, which is fixed to the switch panel through the through hole, and the lock ring and limit bar are used to achieve independent control of a single switch, combining the limit rod and the receiving cavity structure to ensure that The switch cannot be pressed or rotated in a locked state.
It effectively solves the problem of difficulty in controlling a single switch, realizes separate control of the switch, avoids production interruptions, and is suitable for controlling knobs and buttons.
Smart Images
Figure CN119252687A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of safety control, and in particular to a switch safety lock. Background Art
[0002] Before sawing, the emergency stop switch on the packaging operating table switches on and off the control function of the entire area. If construction such as chain connecting is to be carried out, in accordance with safety operating procedures, an emergency stop button must be pressed, the label must be hung and the packaging table must be locked, and the packaging table must be shut down. The only conveyor roller for the packaging process at the other end cannot be used, and production can only be forced to be interrupted. Commonly used switches are knobs and buttons.
[0003] How to individually control the switches is a problem to be solved. Summary of the invention
[0004] The purpose of the present invention is to provide a switch safety lock that solves the problem of difficulty in controlling a single switch.
[0005] In order to achieve the above object, the technical solution adopted by the present invention is: The present invention provides a switch safety lock, comprising a base plate, a sheath and a lock, wherein the base plate is provided with a convex block and a limit bar, and the convex block and the limit bar are arranged at a distance from each other; The sheath comprises an integrally formed first side wall, a second side wall and a receiving cavity, wherein the receiving cavity is located between the first side wall and the second side wall; The lock comprises a lock body and a lock ring, wherein the lock ring is arranged on the lock body and has two states: a closed loop and an open loop; The first side wall and the second side wall clamp the protrusion, and the locking ring passes through the protrusion, the first side wall and the second side wall; The sheath further comprises a limiting rod, two ends of which are respectively connected to the first side wall and the second side wall, and the limiting strip is clamped on the limiting rod; The accommodating cavity is used to accommodate the switch, the bottom plate is provided with a through hole, the through hole is used to pass the switch, and the bottom plate is used to be fixed on the panel where the switch is located.
[0006] Optionally, a positioning groove is further provided on the bottom plate, and the positioning groove is located between the protrusion and the limiting strip.
[0007] Optionally, the limiting strip is formed by bending.
[0008] Optionally, the sheath further includes a top wall, and the first side wall and the second side wall are respectively located on both sides of the top wall.
[0009] Optionally, the accommodating cavity includes a first side cavity, a second side cavity and a middle cavity, the first side cavity is arranged on the first side wall, the second side cavity is arranged on the second side wall, and the middle cavity is located between the first side wall and the second side wall.
[0010] Furthermore, a first cover plate protruding outward is provided on the first side wall, a first protective wall is provided on the outer periphery of the first cover plate, and the first side cavity is located in the area enclosed by the first cover plate and the first protective wall; a second cover plate protruding outward is provided on the second side wall, a second protective wall is provided on the outer periphery of the second cover plate, and the second side cavity is located in the area enclosed by the second cover plate and the second protective wall.
[0011] Further, the extension direction of the first guard wall is consistent with the extension direction of the first side wall, the extension direction of the second guard wall is consistent with the extension direction of the second side wall, the lower end of the first guard wall is higher than the lower end of the first side wall, and the lower end of the second guard wall is higher than the lower end of the second side wall.
[0012] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: A switch safety lock of the present invention has a through hole for passing the switch, a bottom plate for fixing on a panel where the switch is located, an accommodating cavity for accommodating the switch, a limit strip clamped on the limit rod, and a sheath and the bottom plate fixed together by a lock, so that a single switch can be controlled, thereby solving the problem of difficulty in controlling a single switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings: Figure 1 is a three-dimensional view of a switch safety lock according to a preferred embodiment of the present invention; Figure 2 yes Figure 1 The exploded view from top is shown; Figure 3 yes Figure 1 Shown is an exploded view looking down.
[0014] The reference numerals are described as follows: 1. Bottom plate; 2. Sheath; 3. Lock; 4. Switch; 11. Bump; 12. Limiting strip; 13. Through hole; 14. Positioning groove; 15. Card slot; 21. First side wall; 22. Second side wall; 23. Accommodating cavity; 24. Limiting rod; 25. Top wall; 31. Lock body; 32. Lock ring; 211. First cover plate; 212. First protective wall; 221. Second cover plate; 222. Second protective wall; 23. Accommodating cavity; 231. First side cavity; 232. Second side cavity; 233. Middle cavity. DETAILED DESCRIPTION
[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are 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 "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0017] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0018] like Figure 1 and Figure 2 and Figure 3 As shown, a switch safety lock comprises a base plate 1, a sheath 2 and a lock 3, wherein a protrusion 11 and a limit strip 12 are arranged on the base plate 1, the protrusion 11 and the limit strip 12 are arranged at an interval, and the protrusion 11 and the limit strip 12 are integrally formed and arranged on the base plate 1.
[0019] The sheath 2 includes an integrally formed first side wall 21, a second side wall 22 and a accommodating cavity 23. The accommodating cavity 23 is located between the first side wall 21 and the second side wall 22. The accommodating cavity 23 is used to accommodate the switch 4. The bottom plate 1 has a through hole 13, and the through hole 13 is used to pass the switch 4. The bottom plate 1 is used to be fixed on the panel where the switch 4 is located, and the switch 4 protrudes from the outer surface of the bottom plate 1.
[0020] The protrusions 11 and the limiting strips 12 are distributed outside the through hole 13 , and the protrusions 11 and the limiting strips 12 are arranged around the through hole 13 .
[0021] The lock 3 comprises a lock body 31 and a lock ring 32 . The lock ring 32 is arranged on the lock body 31 . The lock ring 32 has two states: a closed loop and an open loop.
[0022] The sheath 2 also includes a limiting rod 24, the two ends of which are respectively connected to the first side wall 21 and the second side wall 22, the limiting strip 12 is clamped on the limiting rod 24, a clamping groove 15 is formed between the limiting strip 12 and the plate surface, the limiting rod 24 is embedded in the clamping groove 15, and the locking ring 32 can be pulled out from the protrusion 11, the first side wall 21, and the second side wall 22, so that the limiting strip 12 can be clamped with the clamping limiting rod 24 first, and then the protrusion 11 and the first side wall 21 and the second side wall 22 are connected through the locking ring 32.
[0023] The limiting rod 24 abuts against the bottom plate 1, so that the limiting rod 24 cannot move downward, thereby preventing this end of the sheath 2 from swinging. This is applicable to a knob (if the knob in this example is replaced by a button), so that the button cannot be pressed.
[0024] The first side wall 21 and the second side wall 22 clamp the protrusion 11, and the locking ring 32 passes through the protrusion 11, the first side wall 21 and the second side wall 22. When the base plate 1 and the sheath 2 need to be locked together, one end of the locking ring 32 is clamped together with the lock body 31. When the base plate 1 and the sheath 2 need to be separated, one end of the locking ring 32 is separated from the lock body 31.
[0025] In this way, a single switch 4 is controlled, and this embodiment can also be applied to buttons.
[0026] The bottom plate 1 is also provided with a positioning groove 14 , which is located between the protrusion 11 and the limiting strip 12 . The positioning groove 14 is suitable for screws to pass through, and the bottom plate 1 is fixed to the panel where the switch 4 is located by the screws.
[0027] The limiting strip 12 is formed by bending, at least once, and when the limiting strip 12 is engaged with the limiting rod 24 , the limiting strip 12 has a slight elasticity, which helps the limiting strip 12 to engage with the limiting rod 24 .
[0028] The sheath 2 further includes a top wall 25 , and the first side wall 21 and the second side wall 22 are respectively located on both sides of the top wall 25 . The first side wall 21 , the second side wall 22 and the top wall 25 are integrally formed, and there is a space between the first side wall 21 and the second side wall 22 .
[0029] The accommodating chamber 23 includes a first side chamber 231, a second side chamber 232 and a middle chamber 233. The first side chamber 231 is arranged on the first side wall 21, the second side chamber 232 is arranged on the second side wall 22, and the middle chamber 233 is located between the first side wall 21 and the second side wall 22. The space between the first side wall 21 and the second side wall 22 is the middle chamber 233. The middle chamber 233 is in an elongated strip shape, and both sides of the middle chamber 233 block the rotation of the handle of the switch 4.
[0030] A first cover plate 211 protruding outward is provided on the first side wall 21, a first protective wall 212 is provided on the outer periphery of the first cover plate 211, and the first side cavity 231 is located in the area enclosed by the first cover plate 211 and the first protective wall 212; a second cover plate 221 protruding outward is provided on the second side wall 22, a second protective wall 222 is provided on the outer periphery of the second cover plate 221, and the second side cavity 232 is located in the area enclosed by the second cover plate 221 and the second protective wall 222.
[0031] When the lock is used for "button" control, the first cover plate 211, the second cover plate 221, the first protective wall 212 and the second protective wall 222 wrap the upper end of the "button" so that the button cannot be pressed. When used for a knob, the knob can be prevented from rotating.
[0032] In this embodiment, the outer periphery of the switch 4 is circular, so the first cover plate 211 and the second cover plate 221 have arc edges, and the first protective wall 212 and the second protective wall 222 are also arc-shaped.
[0033] The extension direction of the first protective wall 212 is consistent with the extension direction of the first side wall 21, and the extension direction of the second protective wall 222 is consistent with the extension direction of the second side wall 22. The lower end of the first protective wall 212 is higher than the lower end of the first side wall 21, and the lower end of the second protective wall 222 is higher than the lower end of the second side wall 22. In this way, only the upper half of the switch 4 is located in the accommodating cavity 23, and the accommodating cavity 23 is also convenient for being mounted on the switch 4.
[0034] In other embodiments, the lower end of the first protective wall 212 is flush with the lower end of the first side wall 21 , and the lower end of the second protective wall 222 is flush with the lower end of the second side wall 22 .
[0035] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.
Claims
1. A switch safety lock, comprising a base plate (1), a sheath (2) and a lock (3), characterized in that: The bottom plate (1) is provided with a protrusion (11) and a limiting strip (12), and the protrusion (11) and the limiting strip (12) are arranged at a distance from each other; The protective sleeve (2) comprises an integrally formed first side wall (21), a second side wall (22) and a receiving cavity (23), wherein the receiving cavity (23) is located between the first side wall (21) and the second side wall (22); The lock (3) comprises a lock body (31) and a lock ring (32); the lock ring (32) is arranged on the lock body (31); the lock ring (32) has two states: a closed loop and an open loop; The first side wall (21) and the second side wall (22) clamp the protrusion (11), and the locking ring (32) passes through the protrusion (11), the first side wall (21) and the second side wall (22); The sheath (2) further comprises a limiting rod (24), the two ends of which are respectively connected to the first side wall (21) and the second side wall (22), and the limiting strip (12) is snap-connected to the limiting rod (24); The accommodating cavity (23) is used to accommodate a switch, the bottom plate (1) is provided with a through hole (13), the through hole (13) is used to pass the switch, and the bottom plate (1) is used to be fixed on a panel where the switch is located.
2. The switch safety lock according to claim 1, characterized in that: The bottom plate (1) is also provided with a positioning groove (14), and the positioning groove (14) is located between the protrusion (11) and the limiting strip (12).
3. The switch safety lock according to claim 1, characterized in that: The limiting strip (12) is formed by bending.
4. The switch safety lock according to claim 1, characterized in that: The protective sleeve (2) further comprises a top wall (25), and the first side wall (21) and the second side wall (22) are respectively located on both sides of the top wall (25).
5. The switch safety lock according to claim 1, characterized in that: The accommodating cavity (23) comprises a first side cavity (231), a second side cavity (232) and a middle cavity (233); the first side cavity (231) is arranged on the first side wall (21); the second side cavity (232) is arranged on the second side wall (22); and the middle cavity (233) is located between the first side wall (21) and the second side wall (22).
6. The switch safety lock according to claim 5, characterized in that: The first side wall (21) is provided with a first cover plate (211) protruding outwards, a first protective wall (212) is provided on the outer periphery of the first cover plate (211), the first side cavity (231) is located in an area enclosed by the first cover plate (211) and the first protective wall (212), the second side wall (22) is provided with a second cover plate (221) protruding outwards, a second protective wall (222) is provided on the outer periphery of the second cover plate (221), and the second side cavity (232) is located in an area enclosed by the second cover plate (221) and the second protective wall (222).
7. The switch safety lock according to claim 6, characterized in that: The extension direction of the first protective wall (212) is consistent with the extension direction of the first side wall (21), the extension direction of the second protective wall (222) is consistent with the extension direction of the second side wall (22), the lower end of the first protective wall (212) is higher than the lower end of the first side wall (21), and the lower end of the second protective wall (222) is higher than the lower end of the second side wall (22).