Limiting self-resetting mechanism
By designing a limit self-resetting mechanism, the ±180° rotation limit is achieved by using the impact of the stop block on the swing block, and the buffer structure provides protection, thus solving the problem of damage to the limit mechanism in the existing technology and improving the safety and stability of the equipment.
Patent Information
- Application Number
- CN202423021668.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-09
AI Technical Summary
The existing limit self-resetting mechanism cannot achieve ±180° rotation limit, and the mechanism may be damaged due to excessive speed during the limit process, affecting the safety and stability of the equipment.
A limit self-resetting mechanism is designed, including a top cover, a shell, a rotating cylinder, a stop block, a swing block, and a limit switch. The limit is achieved by the stop block hitting the swing block, and the automatic reset and buffer structure of the swing block, including a slider, a limit plate, a spring, and a protective shell, is used to achieve limit and buffer protection for ±180° rotation.
It achieves a ±180° rotation limit function, and during the limit process, a buffer structure protects the mechanism to prevent damage, thereby improving the safety and stability of the equipment.
Smart Images
Figure CN223582835U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to self-resetting mechanism technical field, concretely is a kind of limit self-resetting mechanism. BACKGROUND
[0002] Limit self-resetting mechanism is a kind of mechanical device combining limit control and self-resetting function, for ensuring that component or system can automatically stop and restore to initial state or safe position after moving to preset boundary position.This mechanism can effectively prevent damage caused by exceeding limit, improve the safety and stability of system, widely used in automation equipment, mechanical system and control system, such as electric push rod, robot joint, machine tool and automated production line etc.Through the mechanism, mechanical system can realize accurate position control and automatic recovery function, reduce human intervention, improve the automation and intelligent level of equipment.
[0003] In prior art, limit self-resetting mechanism cannot realize ±180 ° rotation limit, and limit mechanism can be damaged due to too fast rotating speed in limit process, thereby affecting limit function, and causing equipment damage. SUMMARY
[0004] The utility model aims at providing a kind of limit self-resetting mechanism, ±180 ° rotation limit can be realized, automatic reset when reverse rotation, while buffering can be carried out in limit process.
[0005] To achieve the above object, the technical scheme that the utility model adopts is as follows: provide a kind of limit self-resetting mechanism, including top cover, the inside rotation of top cover is connected with shell, the inside fixed connection of shell has fixed frame, the inside rotation of top cover is connected with rotary drum, the rotary drum rotates in the inside of shell, the outer wall of rotary drum is fixedly connected with stop block, the inside fixed connection of fixed frame has limit switch, the outer wall of fixed frame is rotationally connected with swing block.
[0006] Optionally, the inside of swing block is provided with two sliding grooves, two the inside sliding connection of sliding groove has sliding block, the bottom of sliding block is fixedly connected with limit plate, the limit plate is limited to slide in the inside of sliding groove.
[0007] Optionally, spring one is arranged in the inside of sliding groove, one end of spring one is fixedly connected in the inside of limit plate, the other end of spring one is fixedly connected in the inside of sliding groove.
[0008] Optionally, the outer wall of swing block is provided with two groups of protection components, the protection components are used to play the role of buffering, the protection components include fixed plate.
[0009] Optionally, the fixed plate is fixedly connected to the outer wall of the swing block, the fixed plate is arranged on both sides of the outer wall of the swing block, a sliding shaft is slidably connected to the inner portion of the fixed plate, and a protective shell is fixedly connected to the outer wall of the sliding shaft.
[0010] Optionally, the outer wall of the sliding shaft is sleeved with a second spring, one end of the second spring is fixedly connected to the inner portion of the fixed plate, the other end of the second spring is fixedly connected to the inner portion of the protective shell, and a groove is formed in the inner portion of the protective shell.
[0011] Compared with the prior art, the utility model has the advantages of the following:
[0012] 1, the utility model discloses when using, the rotary drum rotates, drives the baffle to rotate around the center of the rotary drum, when the baffle rotates to the position of the swing block and impacts the swing block, makes the swing block rotation angle impact the bottom of the limit switch and triggers the switch, thereby control rotary drum stops rotating, when the baffle reverses and leaves, the swing block is under the action of gravity and hangs down reset, thereby realizes automatic reset, and the swing block can also realize ± 180 ° rotation.
[0013] 2, the utility model discloses through the sliding block and the limiting plate in the inner portion of the swing block and combine spring one can be in the process of the swing block and impact the bottom of the limit switch and buffer, through the protective shell drives the sliding shaft to slide in the inner portion of the fixed plate and compresses spring two, can be in the process of the baffle and impact the swing block and buffer, plays the protection effect. ACCURACY
[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be to the embodiment or the description of prior art needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.
[0015] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;
[0016] Figure 2 It is the three-dimensional structure schematic diagram of the baffle of the utility model;
[0017] Figure 3 It is the three-dimensional structure schematic diagram of the limit switch of the utility model;
[0018] Figure 4 It is the three-dimensional structure schematic diagram of the protective shell of the utility model.
[0019] In the figure: 1, top cover; 2, shell; 3, fixed frame; 4, rotating drum; 5, stop block; 6, limit switch; 7, swing block; 8, sliding block; 9, limit plate; 10, spring I; 11, fixed plate; 12, sliding shaft; 13, protective shell; 14, spring II; 15, groove. DETAILED DESCRIPTION
[0020] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.
[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0023] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0024] A limiting self-resetting mechanism provided by the utility model embodiment will now be described. A limiting self-resetting mechanism comprises a top cover 1, a shell 2 is rotatably connected inside the top cover 1, a fixed frame 3 is fixedly connected inside the shell 2, a rotating drum 4 is rotatably connected inside the top cover 1, the rotating drum 4 rotates inside the shell 2, a stop block 5 is fixedly connected to the outer wall of the rotating drum 4, the stop block 5 strikes a swing block 7, the swing block 7 strikes a limit switch 6 to achieve a limiting function, the limit switch 6 is fixedly connected inside the fixed frame 3, and the swing block 7 is rotatably connected to the outer wall of the fixed frame 3.
[0025] The utility model provides a kind of limit self-resetting mechanism, compared with prior art, solve the problem of azimuth ±180 ° rotation limit, buffering structure plays the role of buffering in the process of limiting, prevent the utility model from being damaged.
[0026] In another embodiment of the utility model, please refer to Figure 3 And Figure 4 Two sliding grooves are formed in the interior of the swing block 7, and two sliding blocks 8 are slidably connected in the two sliding grooves. The bottom of the sliding block 8 is fixedly connected with a limiting plate 9, and the limiting plate 9 is limited to slide in the sliding groove. The limiting plate 9 limits the sliding of the sliding block 8. A spring 10 is arranged in the sliding groove. One end of the spring 10 is fixedly connected in the interior of the limiting plate 9, and the other end of the spring 10 is fixedly connected in the interior of the sliding groove. The spring 10 automatically resets the limiting plate 9 and the sliding block 8, and also assists in buffering.
[0027] In another embodiment of the utility model, please refer to Figure 3 And Figure 4 Two groups of protection assemblies are arranged on the outer wall of the swing block 7. The protection assemblies are used to buffer. The protection assemblies include a fixed plate 11, which is fixedly connected to the outer wall of the swing block 7. The fixed plate 11 is arranged on both sides of the outer wall of the swing block 7. A sliding shaft 12 is slidably connected in the interior of the fixed plate 11. The fixed plate 11 limits the sliding shaft 12. A protection shell 13 is fixedly connected to the outer wall of the sliding shaft 12. A spring 14 is sleeved on the outer wall of the sliding shaft 12. One end of the spring 14 is fixedly connected in the interior of the fixed plate 11, and the other end of the spring 14 is fixedly connected in the interior of the protection shell 13. A recess 15 is formed in the interior of the protection shell 13. The spring 14 is elastically reset, and also buffers and protects.
[0028] Working principle: when using, the fixed frame 3 is fixedly installed inside the shell 2, two limit switches 6 are installed inside the fixed frame 3, and the swing block 7 is rotatably connected to the outer wall of the fixed frame 3; when the rotating drum 4 rotates, the stop block 5 is driven to rotate and move; when the stop block 5 rotates to one side of the swing block 7, the protective shell 13 on the outer wall of the swing block 7 is impacted; after the protective shell 13 is impacted, the slide shaft 12 is driven to slide and compress the spring two 14, the spring two 14 plays a buffering role, so as to impact the swing block 7, the swing block 7 is rotated to drive the sliding block 8 to impact the bottom of the limit switch 6; in the process that the sliding block 8 impacts the limit switch 6, the swing block 7 slides inside and compresses the spring one 10, the elasticity of the spring one 10 plays a buffering role, when the sliding block 8 impacts the limit switch 6, the limit switch 6 is triggered, so that the utility model stops rotating; when the rotating drum 4 and the stop block 5 rotate reversely, the other side of the swing block 7 is impacted, the swing block 7 reversely rotates to impact the other limit switch 6, so that the swing block 7 can realize ±180° rotation; when the stop block 5 leaves, the swing block 7 vertically rotates downward under the action of gravity, so as to realize automatic reset.
[0029] The above only describes preferred embodiments of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A limit self-resetting mechanism comprising a top cover (1), characterized in that: The inside of the top cover (1) is rotatably connected with a shell (2), the inside of the shell (2) is fixedly connected with a fixed frame (3), the inside of the top cover (1) is rotatably connected with a rotating drum (4), the rotating drum (4) rotates in the inside of the shell (2), the outer wall of the rotating drum (4) is fixedly connected with a stop block (5), the inside of the fixed frame (3) is fixedly connected with a limit switch (6), and the outer wall of the fixed frame (3) is rotatably connected with a swing block (7).
2. The check and self-return mechanism according to claim 1, wherein: The inside of the swing block (7) is provided with two sliding grooves, two sliding grooves are slidably connected with a sliding block (8), the bottom of the sliding block (8) is fixedly connected with a limit plate (9), and the limit plate (9) is limited to slide in the inside of the sliding groove.
3. The check and self-return mechanism according to claim 2, wherein: The inside of the sliding groove is provided with a spring (10), one end of the spring (10) is fixedly connected in the inside of the limit plate (9), and the other end of the spring (10) is fixedly connected in the inside of the sliding groove.
4. The check and self-return mechanism according to claim 1, wherein: The outer wall of the swing block (7) is provided with two groups of protection assemblies, the protection assemblies are used for buffering, and the protection assemblies comprise a fixed plate (11).
5. The check and self-return mechanism according to claim 4, wherein: The fixed plate (11) is fixedly connected to the outer wall of the swing block (7), the fixed plate (11) is arranged on both sides of the outer wall of the swing block (7), the inside of the fixed plate (11) is slidably connected with a sliding shaft (12), and the outer wall of the sliding shaft (12) is fixedly connected with a protection shell (13).
6. The check and self-return mechanism according to claim 5, wherein: The outer wall of the sliding shaft (12) is sleeved with a spring (14), one end of the spring (14) is fixedly connected in the inside of the fixed plate (11), the other end of the spring (14) is fixedly connected in the inside of the protection shell (13), and the inside of the protection shell (13) is provided with a groove (15).