CN214898204U

CN214898204U - Automatic reset emergency stop device based on material electrification shrinkage characteristics

Info

Publication number: CN214898204U
Application number: CN202121375260.9U
Authority: CN
Inventors: 赵强先; 吴子寒; 赵肖庆
Original assignee: Hangzhou Weilian Zhikong Technology Co ltd
Current assignee: Hangzhou Weilian Zhikong Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-11-26
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to an electrical equipment specifically discloses an automatic re-setting scram device based on material circular telegram shrinkage characteristic. The automatic reset emergency stop device comprises a shell and a knob; the knob comprises a clamping ring, and a clamping block is arranged on the clamping ring; a sliding block is arranged in the shell and corresponds to the clamping block, and an elastic part is arranged between the sliding block and the shell; the driving assembly comprises a plurality of traction belts, one end of each traction belt is connected with the sliding block, the other end of each traction belt is connected with the shell, and each traction belt is made of a material with an electrified contraction characteristic; when the sliding block is reset, the two ends of the traction belt are electrified, the traction belt is contracted, and the sliding block is driven to slide relative to the shell and be far away from the clamping block. The automatic reset emergency stop device can realize the automatic reset of the emergency stop device and simultaneously improve the working stability of the emergency stop device.

Description

Automatic reset emergency stop device based on material electrification shrinkage characteristics

Technical Field

The utility model relates to an electrical equipment, concretely relates to automatic re-setting scram device based on material circular telegram shrinkage characteristic.

Background

The emergency stop device is a device which is pressed down in an emergency, quickly stops the work of equipment and protects personnel and equipment. The machine tool is widely used in various machines in factories, for example, various processing machines, and is also widely used in electric equipment in public places, for example, elevators.

Most of the existing emergency stop devices are in manual operation modes, and after the emergency stop devices are pressed down, the knobs are locked, and the equipment stops working. After the emergency factors are eliminated, the knob is rotated and released, and then the equipment can be restarted.

However, in some end-user oriented devices, due to the lack of expertise of ordinary users, the situation of pressing the emergency stop device by mistake often occurs; or after pressing the scram device and removing the emergency factor, there is often no awareness of restarting the equipment. At the moment, workers are required to go to the site to reset the emergency stop device, and the labor cost is high.

Especially, at present that the sharing economy is rapidly developed, a large amount of shared electric equipment such as electric pile that fills is put on the market. Due to the product characteristics of the shared equipment, the staff only carries out maintenance regularly, and the staff only carries out remote monitoring in most of the time. For the safety of the electric equipment and the user, part of the shared electric equipment is also provided with an emergency stop device, and the user can quickly stop the equipment in an emergency. Common users often lack of speciality, and if workers cannot timely restart the equipment on site, the equipment is idle, and the maintenance cost is high.

In order to solve the above problems, the chinese patent application with application publication No. CN 110911183a discloses a novel emergency stop switch, in which a motor is disposed in a fixing buckle, and the motor drives a spline shaft to rotate, so as to realize automatic reset of the emergency stop switch. However, in the novel emergency stop switch disclosed in the above patent application, in the process of pressing the emergency stop switch, the second protrusion on the spline shaft and the first protrusion on the shifting piece have the possibility of mutual interference, so that the risk that the emergency stop button cannot be pressed in place exists, and the reliability of the operation of the emergency stop switch is affected.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide an automatic re-setting emergency stop device based on material circular telegram shrink characteristic, realize the automatic re-setting of emergency stop device, improve the job stabilization nature of emergency stop device simultaneously.

In order to solve the technical problem, the utility model provides a technical scheme as follows: an automatic resetting emergency stop device based on the material electrification shrinkage characteristic comprises a shell and a knob, wherein an installation cavity is arranged in the shell, the knob is partially inserted into the installation cavity and is movably connected with the shell, and a reset spring is arranged between the knob and the shell; the knob comprises a clamping ring, and a clamping block is arranged on the clamping ring; a sliding block is arranged in the shell and corresponds to the clamping block, and an elastic part is arranged between the sliding block and the shell;

the driving assembly comprises a plurality of traction belts, one end of each traction belt is connected with the sliding block, the other end of each traction belt is connected with the shell, and each traction belt is made of a material with an electrified contraction characteristic; when the sliding block is reset, the two ends of the traction belt are electrified, the traction belt is contracted, and the sliding block is driven to slide relative to the shell and be far away from the clamping block.

During scram, the knob is pressed manually, the clamping ring compresses the elastic piece in a descending process, the clamping ring can pass through the sliding block, and after the clamping ring passes through the sliding block, the sliding block resets and is matched with the clamping block to clamp the knob, so that the scram device is kept in a scram state. When the reset is performed, the traction belt is electrified and contracted, the sliding block is driven to slide relative to the shell, the sliding block is separated from the clamping block, the knob is released, and the knob is pushed by the reset elastic piece to reset upwards.

The automatic reset emergency stop device can realize automatic reset of the emergency stop device, and an operator can remotely control the emergency stop device, so that the workload of the operator is reduced, and the use and maintenance cost is reduced.

Compared with the background art, the knob is released in a sliding mode of the driving sliding block, the possibility of conflict between the first projection and the second projection is ingeniously avoided, the knob can be smoothly put in place for scram when pressed down, and the safety and the reliability of the work of the scram device are guaranteed.

Preferably, the traction belt is made of nickel titanium alloy.

Preferably, the traction belt is filamentous.

Preferably, the drive assembly includes a guide portion, and the traction belt portion is wound around the guide portion.

Preferably, the guide portion includes an arc-shaped guide surface, and the traction belt is wound around the guide surface.

By winding around the guide, a longer traction belt can be provided in a limited space. Under the premise that the contraction proportion of the unit length of the traction belt is not changed after the traction belt is electrified, the length of the traction belt is longer, a larger sliding block movement range can be obtained, and the reset effect of the knob is ensured.

Drawings

FIG. 1 is an exploded view of an automatic reset emergency stop device based on the material electrification contraction characteristic according to the embodiment;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a cross-sectional view of the automatic resetting emergency stop device based on the material electrification contraction characteristic in the embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Examples

As shown in fig. 1-3, an automatic resetting emergency stop device based on material electrification shrinkage characteristics comprises a shell 1 and a knob 2, wherein an installation cavity is arranged in the shell 1, a part of the knob 2 is inserted into the installation cavity and is movably connected with the shell 1, and a resetting spring 3 is arranged between the knob 2 and the shell 1. The knob 2 comprises a clamping ring 21, and a clamping block 22 is arranged on the clamping ring 21. The shell 1 is internally provided with a sliding block 4, the sliding block 4 corresponds to the clamping block 22, and an elastic part 5 is arranged between the sliding block 4 and the shell 1.

As shown in fig. 1-3, the device further comprises a driving assembly 6, wherein the driving assembly 6 comprises a plurality of traction belts 93, one end of each traction belt 93 is connected with the sliding block 4, the other end of each traction belt 93 is connected with the shell 1, and the traction belts 93 are made of materials with electrified contraction characteristics, preferably filamentary nickel-titanium alloy. When the sliding block is reset, the two ends of the traction belt 93 are electrified, the traction belt 93 contracts, and the sliding block 4 is driven to slide relative to the shell 1 and is far away from the clamping block 22.

During scram, knob 2 is pressed manually, rand 21 is at the down in-process, and slider 4 compression elastic component 5, and rand 21 can pass through slider 4 to after passing, slider 4 resets and cooperates chucking knob 2 with fixture block 22, makes the scram device keep in the scram state. When resetting, the traction belt 93 is electrified and contracted, the sliding block 4 is driven to slide relative to the shell 1, the sliding block 4 is separated from the clamping block 22, the knob 2 is released, and the knob 2 is pushed by the resetting elastic piece 5 to reset upwards.

The remote control device is characterized by further comprising a control module and a remote operation module, wherein the control module is electrically connected with the driving assembly 6 and the remote operation module respectively, and controls the working state of the driving assembly 6 according to the instruction of the remote operation module.

The control module comprises a communication unit, and the remote operation module is connected with the communication unit through wired signals and/or wireless signals for communication. The wired signal is one or more of IO high and low level, 485, 232 and CAN, and the wireless signal is one or more of 4G, 5G, WIFI, LORA and NB-lot. The system can adopt a single communication mode, can also be compatible with a plurality of communication modes simultaneously, can adapt to various use occasions such as workshops and public places, and has good market compatibility.

As shown in fig. 1-3, the drive assembly 6 includes a guide portion 92, and the traction belt 93 is partially wound around the guide portion 92. The guide portion 92 includes an arc-shaped guide surface 91, and the traction belt 93 is wound around the guide surface 91.

In the form of being wound around the guide portion 92, a longer pulling tape 93 can be provided in a limited space. Under the premise that the contraction ratio of the unit length of the traction belt 93 is not changed after the traction belt 93 is electrified, the length of the traction belt 93 is longer, a larger movement range of the sliding block 4 can be obtained, and the resetting effect of the knob 2 is ensured.

In summary, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. An automatic resetting emergency stop device based on the material electrification shrinkage characteristic comprises a shell and a knob, wherein an installation cavity is arranged in the shell, the knob is partially inserted into the installation cavity and is movably connected with the shell, and a reset spring is arranged between the knob and the shell; the knob comprises a clamping ring, and a clamping block is arranged on the clamping ring; a sliding block is arranged in the shell and corresponds to the clamping block, and an elastic part is arranged between the sliding block and the shell;

the method is characterized in that: the driving assembly comprises a plurality of traction belts, one end of each traction belt is connected with the sliding block, the other end of each traction belt is connected with the shell, and each traction belt is made of a material with an electrified contraction characteristic;

when the sliding block is reset, the two ends of the traction belt are electrified, the traction belt is contracted, and the sliding block is driven to slide relative to the shell and be far away from the clamping block.

2. The automatic reset emergency stop device according to claim 1, characterized in that: the traction belt is made of nickel-titanium alloy.

3. The automatic reset emergency stop device according to claim 1, characterized in that: the traction belt is filamentous.

4. The automatic reset emergency stop device according to any one of claims 1-3, wherein: the drive assembly includes a guide portion about which the traction belt portion is wrapped.

5. The automatic reset emergency stop device according to claim 4, wherein: the guide part protects the arc-shaped guide surface, and the traction belt is wound on the guide surface.