A bidirectional reset emergency stop switch

Abstract

The utility model provides a bidirectional reset emergency stop switch, including contact mechanism and operating mechanism, operating mechanism includes mounting seat, core seat, inner knob cap, first elastic part, second elastic part and at least one positioning slide rod, the first installation cavity is equipped with axially on mounting seat, the core seat is connected with first installation cavity, the inner knob cap is connected in the upper end of core seat, and first elastic part is located in first installation cavity, the second installation cavity is also radially equipped with on core seat, and second elastic part and positioning slide rod are located at second installation cavity in inside and outside, first installation cavity is also equipped with first positioning recess cavity and second positioning recess cavity up and down, first positioning recess cavity and second positioning recess cavity are used for cooperating positioning slide rod, and the downside of first positioning recess cavity is equipped as first guide inclined plane, and the left and right sides of second positioning recess cavity are equipped as second guide inclined plane, the utility model discloses structure design is reasonable, simple, and can reset through clockwise rotation or counterclockwise rotation after emergency stop locking, and operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of switch technology, and in particular to a bidirectional reset emergency stop switch. Background Technology

[0002] An emergency stop switch is a type of master control electrical appliance. When a machine is in a dangerous state, the emergency stop switch cuts off the power supply, stops the equipment, and protects personnel and equipment. A traditional emergency stop switch consists of a housing, a contact mechanism inside the housing, an operating knob inside the housing for operating the contact mechanism, and an actuation cover on the operating knob. A reset spring connects the operating knob to the housing. Rotating the cover moves the operating knob downwards, triggering the contact mechanism to switch the circuit. However, existing emergency stop switches are complex in structure and can only achieve unidirectional rotational reset, resulting in an unreasonable structural design and inconvenient operation. Utility Model Content

[0003] To address the shortcomings of the existing technology, the purpose of this utility model is to provide a bidirectional reset emergency stop switch with a reasonable and simple structure. After the emergency stop is locked, it can be reset by rotating clockwise or counterclockwise, making operation more convenient.

[0004] The technical solution adopted by this utility model to solve its technical problem is a bidirectional reset emergency stop switch, including a contact mechanism and an operating mechanism. The operating mechanism is arranged above the contact mechanism and includes a mounting base, a core base, an inner button, a first elastic element, a second elastic element, and at least one positioning slide rod. The mounting base is connected to the upper part of the housing. The mounting base has a first mounting cavity axially arranged on it. The core base is connected to the first mounting cavity, and the lower end of the core base can extend to the lower part of the first mounting cavity. The inner button is connected to the upper end of the core base. The first elastic element is disposed in the first mounting cavity and is used to provide force to the core base. The core base also has a second mounting cavity radially arranged. The second elastic element and the positioning slide rod are disposed in the second mounting cavity inward and outward. The first mounting cavity also has a first positioning recess and a second positioning recess arranged vertically. The first positioning recess and the second positioning recess are used to cooperate with the positioning slide rod. The lower side of the first positioning recess is set as a first guide slope, and the left and right sides of the second positioning recess are both set as second guide slopes.

[0005] The advantages of the above technical solution are as follows: In the initial state, the positioning slide rod is elastically locked in the first positioning cavity by the second elastic element, and the core seat is locked on the mounting seat. When the inner button is pressed to apply a certain downward pressure to the core seat, since the lower side of the first positioning cavity is set as the first guide slope, with the cooperation of the second elastic element, the positioning slide rod will gradually move towards the second mounting cavity along the first guide slope until the positioning slide rod rotates out of the first positioning cavity. The core seat and the mounting seat are then unlocked, and the inner button and the core seat can move downward. When the inner button and the core seat move the positioning slide rod downward to the second positioning cavity, the second elastic element releases its elastic potential energy, and the positioning slide rod will move out of the second mounting cavity until the positioning slide rod and the second positioning cavity form a locking engagement. Under the action of the core seat, the core seat and the mounting base will achieve emergency stop locking. The first elastic element will also remain compressed to accumulate elastic potential energy and complete the emergency stop pressing action. Since the left and right sides of the second positioning cavity are set as second guide slopes, when the inner button is rotated clockwise or counterclockwise, the positioning slide rod can be moved into the second mounting cavity through the core seat. When the positioning slide rod moves out of the second positioning cavity, the core seat and the mounting base are released from emergency stop locking. The first elastic element releases elastic potential energy and drives the core seat and the inner button to move upward, so that the positioning slide rod rotates into the first positioning cavity. The core seat is locked on the mounting base again, which can complete the reset action. The overall structure design is reasonable and simple, and the reset can be performed by rotating clockwise or counterclockwise after emergency stop locking, making the operation more convenient.

[0006] Furthermore, at least one first positioning slider is provided on the bottom through-hole of the first mounting cavity, and a third positioning cavity is provided at the corresponding position on the lower outer wall of the core seat. The third positioning cavity is provided with a large-diameter section chamber and a small-diameter section chamber above and below. An inclined section is also provided on both sides of the large-diameter section chamber. The inclined section is connected to the corresponding wall of the small-diameter section chamber. The inner diameter of the small-diameter section chamber is also adapted to the outer diameter of the first positioning slider.

[0007] The advantages of the above technical solution are as follows: By setting a first positioning slider and a third positioning cavity with a large-diameter section chamber and a small-diameter section chamber, when the positioning slider engages with the first positioning cavity, the first positioning slider will be located in the small-diameter section chamber. Through the engagement of the small-diameter section chamber and the first positioning slider, the inner button and the core seat can only move downwards and cannot rotate. When the inner button and the core seat are pressed to engage with the second positioning cavity, the first positioning slider will be located in the large-diameter section chamber. Rotating the inner button and the core seat clockwise or counterclockwise will cause the first positioning slider to contact the corresponding side wall of the large-diameter section chamber. With the inclined section, when the inner button is released, during the upward movement of the inner button and the core seat caused by the first elastic element, the inner button and the core seat will also rotate synchronously, thereby automatically rotating the positioning slider to engage with the first positioning cavity. The operation is convenient and the structural design is reasonable.

[0008] Furthermore, the inner side of the inner button is provided with a first mounting ring edge, and the inner wall surface of the first mounting ring edge is provided with symmetrical snap-fit ​​slots and symmetrical positioning slots. The core seat is provided with a second mounting ring edge, and the outer wall surface of the second mounting ring edge is provided with symmetrical snap-fit ​​blocks and symmetrical positioning pins. The snap-fit ​​blocks cooperate with the snap-fit ​​slots, and the positioning pins cooperate with the positioning slots.

[0009] The advantages of the above technical solution are as follows: by setting a snap-fit ​​slot and a positioning slot on the first mounting ring edge, and by setting a snap-fit ​​plug and a positioning pin on the second mounting ring edge, the snap-fit ​​slot and snap-fit ​​plug cooperate to achieve snap-fit ​​fixation between the inner button and the core seat. The setting of the positioning slot and positioning pin can prevent the inner button from being disengaged from the core seat during rotation. The structure is reasonably designed and has a good effect.

[0010] Furthermore, the snap-fit ​​slot and the snap-fit ​​plug are slidably snap-fitted together, and a third elastic element is provided on the inner side of the second mounting ring, the third elastic element providing force for the inner button cap.

[0011] The advantages of the above technical solution are: the operator needs to overcome the elastic force of the third elastic element, and then move the inner button down a preset distance until the upper end of the second mounting ring edge abuts against the inner side of the inner button. Only by continuing to press the inner button can the core seat be moved down, thus providing an anti-accidental touch function and a better performance.

[0012] Furthermore, the second mounting cavity is through-hole, and there are two of each of the positioning slide rod, the first positioning recess, and the second positioning recess.

[0013] The advantages of adopting the above technical solution are: the positioning slide rod, the first positioning cavity and the second positioning cavity are both of two, the movement and rotation of the core seat will be more stable, the cooperation with the mounting seat will be more reliable, and the structural design is reasonable.

[0014] Furthermore, a sealing cover is provided between the contact mechanism and the operating mechanism, and the peripheral edge of the sealing cover is fixedly and sealed to the inner wall of the outer shell. The sealing cover is made of a flexible material.

[0015] The advantages of adopting the above technical solution are: the sealing cover can prevent moisture and dust from entering the contact mechanism, thereby ensuring the safety of the contact mechanism. In addition, the sealing cover made of flexible material is not only easy to install, but also easy to form folds, which will not interfere with the movement of the core seat.

[0016] Furthermore, the upper end of the inner button cap is provided with a directional arrow, and an outer button cap is also attached to the outside of the inner button cap. The outer button cap is provided with a corresponding notch, and the directional arrow is embedded in the notch.

[0017] The advantages of adopting the above technical solution are: by setting directional arrows on the inner button, users can clearly understand how to use it. Compared with the method of pasting, the effect is also more durable. Furthermore, by setting an outer button with a notch, the notch can match the directional arrow. Without affecting the indication effect, the inner and outer buttons can be made of different materials, and the structural design is more reasonable.

[0018] Furthermore, the contact mechanism includes a base and two sets of on / off control components. The base has two third mounting cavities spaced apart on the left and right. The on / off control components are correspondingly arranged with the corresponding third mounting cavities. Each on / off control component includes a sliding shaft, a moving contact, a fourth elastic element, a first contact element, and a fifth elastic element. The sliding shaft is slidably disposed at the top of the third mounting cavity. The upper end of the sliding shaft cooperates with the core seat. The sliding shaft has a fourth mounting cavity. The moving contact is transversely disposed in the fourth mounting cavity. The fourth elastic element is disposed between the bottom of the third mounting cavity and the bottom of the sliding shaft. The first contact element is inserted into the bottom of the third mounting cavity and cooperates with both ends of the moving contact. The fifth elastic element is positioned and installed between the moving contact and the fourth mounting cavity.

[0019] The advantages of the above technical solution are as follows: By setting two first mounting cavities on the base, two sets of on / off control components can be installed. Through the action of the core seat and the fourth elastic element, the internal circuit of the on / off control component can be switched simultaneously. At the same time, the cooperation between the first contact and the moving contact in the on / off control component can realize three dual-circuit control modes, namely double normally open, double normally closed, or both single normally open and single normally closed, depending on the usage environment. The fifth elastic element applies an elastic force to the moving contact at the fourth mounting cavity, giving the moving contact an elastic buffer force, making it less prone to damage and extending its service life.

[0020] Furthermore, the base includes a base body and a side cover plate. The third mounting cavity is open on the outer side of the base body, and the top of the third mounting cavity is provided with an open sliding socket that cooperates with the sliding shaft. The bottom of the third mounting cavity is provided with an open first mounting slot that cooperates with the first electrical connector. The side cover plate is positioned and installed on the left and right sides of the base body.

[0021] The advantages of the above technical solution are: the base adopts a combination of base body and side cover plate, and the outer side of the third mounting cavity, the sliding socket and the first mounting slot are all open structures, thereby facilitating the installation of the sliding shaft and the first electrical component. The structural design is reasonable.

[0022] Furthermore, a circuit board with an indicator light is provided at the upper middle part of the base body, and a second mounting slot is provided at the corresponding position of the base body. A second power connector is installed at the second mounting slot and is connected to the circuit board. A light-transmitting cavity is provided at the lower end of the core base.

[0023] The advantages of the above technical solution are: by cooperating with the circuit board with indicator lights and the second electrical component, the position of the emergency stop switch can be indicated. The circuit board is set in the upper middle part of the base body, the installation position of the circuit board is reasonable, and the setting of the light-transmitting cavity makes the indication effect better. Attached Figure Description

[0024] Figure 1 Cross-sectional view of the overall structure of this utility model Figure 1 ; Figure 2 This is a schematic diagram of the mounting base structure of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the mounting base structure of this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the mounting base structure of this utility model. Figure 3 ; Figure 5 This is a schematic diagram of the core base structure of this utility model; Figure 6 This is a schematic diagram of the inner button cap structure of this utility model. Figure 1 ; Figure 7 This is a schematic diagram of the inner button cap structure of this utility model. Figure 2 ; Figure 8 This is a schematic diagram of the outer button cap structure of this utility model; Figure 9 This is a schematic diagram of the contact structure of this utility model. Figure 1 ; Figure 10 This is a schematic diagram of the contact structure of this utility model. Figure 2 ; Figure 11 Cross-sectional view of the contact structure of this utility model Figure 1 ; Figure 12 Cross-sectional view of the contact structure of this utility model Figure 2 ; Figure 13 This is an exploded view of the base structure of this utility model; Figure 14 This is a schematic diagram of the main structure of the base of this utility model. Figure 1 ; Figure 15 This is a schematic diagram of the main structure of the base of this utility model. Figure 2 ; Figure 16 Cross-sectional view of the overall structure of this utility model Figure 2 .

[0025] In the diagram: 1-Outer shell, 2-Mounting base, 3-Core base, 4-Inner button, 5-First elastic element, 6-Second elastic element, 7-Positioning slide rod, 8-First mounting cavity, 9-Second mounting cavity, 10-First positioning recess, 11-Second positioning recess, 12-First guide slope, 13-Second guide slope, 14-First positioning slider, 15-Third positioning recess, 16-Large diameter section chamber, 17-Small diameter section chamber, 18-Inclined section, 19-First mounting ring edge, 20-Snap-fit ​​slot, 21-Positioning slot, 22-Second mounting ring edge, 23-Snap-fit ​​plug, 24 - Positioning pin, 25 - Third elastic element, 26 - Sealing cover, 27 - Directional arrow, 28 - Outer button, 29 - Notch, 30 - Base, 31 - Third mounting cavity, 32 - Sliding shaft, 33 - Moving contact, 34 - Fourth elastic element, 35 - First electrical contact, 36 - Fifth elastic element, 37 - Base body, 38 - Side cover plate, 39 - Sliding socket, 40 - First mounting slot, 41 - Circuit board, 42 - Second mounting slot, 43 - Second electrical contact, 44 - Light-transmitting cavity, 45 - Second positioning slider, 46 - Fourth positioning recess, 47 - Third guide slope. Detailed Implementation

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model and / or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort. Furthermore, references to orientation only indicate the relative positional relationship between the components, not their absolute positional relationship.

[0027] Please see Figures 1 to 16 As shown, a bidirectional reset emergency stop switch includes a contact mechanism and an operating mechanism. The operating mechanism is positioned above the contact mechanism and includes a mounting base 2, a core seat 3, an inner button 4, a first elastic element 5, a second elastic element 6, and at least one positioning slide rod 7. The mounting base 2 is connected to the upper part of the housing 1, and a first mounting cavity 8 is axially provided on the mounting base 2. The core seat 3 is connected to the first mounting cavity 8, and the lower end of the core seat 3 can extend to the outside of the first mounting cavity 8. The inner button 4 is connected to the upper end of the core seat 3. The first elastic element 5... Located within the first mounting cavity 8, the first elastic element 5 provides force to the core seat 3. The core seat 3 is also radially provided with a second mounting cavity 9. The second elastic element 6 and the positioning slide rod 7 are disposed inwardly and outwardly in the second mounting cavity 9. The first mounting cavity 8 is also provided with a first positioning recess 10 and a second positioning recess 11, which are arranged vertically. The first positioning recess 10 and the second positioning recess 11 are used to cooperate with the positioning slide rod 7. The lower side of the first positioning recess 10 is provided as a first guide slope 12, and the left and right sides of the second positioning recess 11 are both provided as second guide slopes 13. In the above structure, in the initial state, the positioning slide rod 7 is elastically locked in the first positioning cavity 10 by the second elastic element 6, and the core seat 3 is locked on the mounting seat 2. When the inner button 4 is pressed to form a certain downward pressure on the core seat 3, since the lower side of the first positioning cavity 10 is set as the first guide slope 12, with the cooperation of the second elastic element 6, the positioning slide rod 7 will gradually move into the second mounting cavity 9 along the first guide slope 12 until the positioning slide rod 7 rotates out of the first positioning cavity 10, the core seat 3 is unlocked from the mounting seat 2, and the inner button 4 and the core seat 3 can move downward. When the inner button 4 and the core seat 3 move the positioning slide rod 7 downward to the second positioning cavity 11, the second elastic element 6 releases elastic potential energy, and the positioning slide rod 7 will move out of the second mounting cavity 9 until the positioning slide rod 7 and the second positioning cavity 11 form a locking engagement. Under the action of the positioning slide rod 7, the core seat 3 will achieve an emergency stop lock with the mounting seat 2. 5 will also remain compressed to accumulate elastic potential energy and complete the emergency stop pressing action. It should be noted that the diameter of the core seat 3 at the second mounting cavity 9 is larger than the inner diameter at the bottom of the second positioning cavity 11, thus forming a pressing limit on the core seat 3. Since the left and right sides of the second positioning cavity 11 are both set as second guide slopes 13, when the inner button 4 is rotated clockwise or counterclockwise, the positioning slide rod 7 can be moved into the second mounting cavity 9 through the core seat 3. When the positioning slide rod 7 moves out of the second positioning cavity 11, the core seat 3 and the mounting seat 2 are released from the emergency stop lock. The first elastic element 5 releases elastic potential energy and drives the core seat 3 and the inner button 4 to move upward, and then the positioning slide rod 7 rotates into the first positioning cavity 10. The core seat 3 is locked on the mounting seat 2 again, which can complete the reset action. The overall structure design is reasonable and simple, and it can be reset by rotating clockwise or counterclockwise after the emergency stop lock, making the operation more convenient.

[0028] In this embodiment, at least one first positioning slider 14 is provided on the bottom through-hole of the first mounting cavity 8. A third positioning cavity 15 is provided at a corresponding position on the lower outer wall of the core seat 3. The third positioning cavity 15 is provided with a large-diameter section chamber 16 and a small-diameter section chamber 17 above and below it. Inclined sections 18 are also provided on the two side walls of the large-diameter section chamber 16. The inclined sections 18 are connected to the corresponding walls of the small-diameter section chamber 17. The inner diameter of the small-diameter section chamber 17 is also adapted to the outer diameter of the first positioning slider 14. In the above structure, by setting the first positioning slider 14 and the third positioning cavity 15 with the large-diameter section chamber 16 and the small-diameter section chamber 17, when the positioning slider 7 cooperates with the first positioning cavity 10, the first positioning slider 14 will be located at the small-diameter section chamber 17. Through the cooperation of the small-diameter section chamber 17 and the first positioning slider 14, the inner button 4 and the core seat 3 can only move downwards and cannot rotate. When the inner button 4 and the core seat 3 are pressed to make the positioning slide rod 7 cooperate with the second positioning cavity 11, the first positioning slider 14 will be located at the large-diameter section chamber 16. Rotating the inner button 4 and the core seat 3 clockwise or counterclockwise will make the first positioning slider 14 contact the corresponding side wall surface of the large-diameter section chamber 16. With the setting of the inclined section 18, when the inner button 4 is released, during the process of the inner button 4 and the core seat 3 moving upwards by the first elastic element 5, the inner button 4 and the core seat 3 will also rotate synchronously, so that the positioning slide rod 7 can be automatically rotated to cooperate with the first positioning cavity 10. The operation is convenient and the structural design is reasonable.

[0029] In this embodiment, the inner side of the inner button cap 4 is provided with a first mounting ring edge 19. The inner wall surface of the first mounting ring edge 19 is provided with symmetrical snap-fit ​​slots 20 and symmetrical positioning slots 21. The core seat 3 is provided with a second mounting ring edge 22. The outer wall surface of the second mounting ring edge 22 is provided with symmetrical snap-fit ​​blocks 23 and symmetrical positioning pins 24. The snap-fit ​​blocks 23 cooperate with the snap-fit ​​slots 20, and the positioning pins 24 cooperate with the positioning slots 21. In the above structure, by providing snap-fit ​​slots 20 and positioning slots 21 on the first mounting ring edge 19... By setting a snap-fit ​​plug 23 and a positioning plug 24 on the second mounting ring edge 22, the snap-fit ​​slot 20 and the snap-fit ​​plug 23 cooperate to achieve the snap-fit ​​fixation of the inner button 4 and the core seat 3. The setting of the positioning slot 21 and the positioning plug 24 can prevent the inner button 4 from being disengaged from the core seat 3 during rotation. The structure is reasonably designed and has a good performance. It should be noted that the cooperation of the snap-fit ​​slot 20 and the snap-fit ​​plug 23 will keep the upper end of the second mounting ring edge 22 in contact with the inner side of the inner button 4.

[0030] In another embodiment, the snap-fit ​​slot 20 and the snap-fit ​​plug 23 are slidably snap-fitted together, and a third elastic element 25 is provided on the inner side of the second mounting ring edge 22. The third elastic element 25 provides force to the inner button 4. In the above structure, the operator needs to overcome the elastic force of the third elastic element 25 and then move the inner button 4 down a preset stroke until the upper end of the second mounting ring edge 22 abuts against the inner side of the inner button 4. At this time, pressing the inner button 4 will drive the core seat 3 to move downward, thus providing an anti-accidental touch function and a better user experience.

[0031] In the above embodiment, the second mounting cavity 9 is through-hole set, and there are two of each of the positioning slide rod 7, the first positioning cavity 10 and the second positioning cavity 11. In the above structure, the positioning slide rod 7, the first positioning cavity 10 and the second positioning cavity 11 are all in two, the movement and rotation of the core seat 3 will be more stable, the cooperation with the mounting seat 2 will be more reliable, and the structural design is reasonable.

[0032] In the above embodiment, a sealing cover 26 is provided between the contact mechanism and the operating mechanism, and the periphery of the sealing cover 26 is fixedly and sealed to the inner wall of the outer shell 1. The sealing cover 26 is made of flexible material. In the above structure, the sealing cover 26 can prevent moisture and dust from entering the contact mechanism, thereby ensuring the safety of the contact mechanism. Moreover, the sealing cover 26 made of flexible material is not only easy to install, but also easy to form folds, which will not interfere with the movement of the core seat 3.

[0033] In the above embodiment, the upper end of the inner button 4 is also provided with a directional arrow 27, and an outer button 28 is also attached to the outside of the inner button 4. The outer button 28 is provided with a corresponding notch 29, and the directional arrow 27 is embedded in the notch 29. In the above structure, by providing the directional arrow 27 on the inner button 4, the user can clearly understand the usage method. Compared with the method of pasting, the effect will be more durable. Furthermore, by providing the outer button 28 with the notch 29, the notch 29 can cooperate with the directional arrow 27. Without affecting the indication effect, the inner button 4 and the outer button 28 can be made of different materials, and the structural design is more reasonable.

[0034] In the above embodiment, the contact mechanism includes a base 30 and two sets of on / off control components. Two third mounting cavities 31 are spaced apart on the base 30. The on / off control components are correspondingly arranged in the third mounting cavities 31. Each on / off control component includes a sliding shaft 32, a moving contact 33, a fourth elastic element 34, a first contact element 35, and a fifth elastic element 36. The sliding shaft 32 is slidably disposed at the top of the third mounting cavity 31. The upper end of the sliding shaft 32 cooperates with the core seat 3. The fourth mounting cavity is provided on the sliding shaft 32. The moving contact 33 is transversely disposed in the fourth mounting cavity. The fourth elastic element 34 is disposed between the bottom of the third mounting cavity 31 and the bottom of the sliding shaft 32. The first contact element 35 is inserted into the bottom of the third mounting cavity 31 and cooperates with both ends of the moving contact 33. The fifth elastic element 36 is positioned between the moving contact 33 and the fourth mounting cavity. The core seat 3 drives the sliding shaft 32 to move downwards, thereby driving the moving contact 33 to move downwards. During the reset process, the fourth elastic element 34 releases elastic potential energy, causing the sliding shaft 32 to move upward, thereby causing the moving contact 33 to move upward. Through the up and down movement of the moving contact 33, the two first electrical contacts 35 can form corresponding conduction or disconnection. In the above structure, by setting two third mounting cavities 31 on the base 30, the installation of two sets of on / off control components can be realized. Through the action of the core seat 3 and the fourth elastic element 34, the switching control purpose of the circuit inside the on / off control component can be realized simultaneously. At the same time, the cooperation mode of the first electrical contact 35 and the moving contact 33 in the on / off control component can realize three dual-circuit control modes according to the usage environment: double normally open, double normally closed, or both single normally open and single normally closed. The setting of the fifth elastic element 36 will apply an elastic force to the moving contact 33 at the fourth mounting cavity, so that the moving contact 33 has an elastic buffer force, making the moving contact 33 less prone to damage and longer service life.

[0035] In the above structure, the above function can be achieved by installing first contact members 35 at different heights. More specifically, in the first method, when the circuit on / off control components in both third mounting cavities 31 achieve double normally closed function, the inner ends of the two first contact members 35 will be positioned above the two ends of the moving contact member 33. At this time, under the action of the two fourth elastic members 34, the moving contact members 33 in both third mounting cavities 31 are in contact with the first contact members 35, and the circuit is connected. In the second method, when the circuit on / off control components in both third mounting cavities 31 achieve double normally open function, the inner ends of the two first contact members 35 will be positioned below the two ends of the moving contact member 33. At this time, under the action of the fourth elastic members 34, the contact connection between the moving contact member 33 and the first contact member 35 is disconnected, and the circuit is broken. In the third method, when the two third mounting cavities 31... When the circuit on / off control components in the third mounting cavity 31 respectively implement the functions of single normally closed and single normally open, the inner end of the first contact 35 in one third mounting cavity 31 will be positioned above the two ends of the moving contact 33. At this time, under the action of the corresponding fourth elastic element 34, the moving contact 33 in the third mounting cavity 31 will be in contact with the first contact 35, and the circuit will be connected. When the circuit on / off control components in the other third mounting cavity 31 implement the function of normally open, the inner ends of the two first contact 35 in the third mounting cavity 31 will be positioned below the two ends of the moving contact 33. At this time, under the action of the fourth elastic element 34, the contact connection between the moving contact 33 and the first contact 35 will be broken. Therefore, this emergency stop switch can simultaneously realize two circuit controls and can also realize multiple circuit control combinations, making installation more flexible, effectively reducing inventory pressure, and having a reasonable structural design. In the above embodiment, the base 30 includes a base body 37 and a side cover plate 38. The third mounting cavity 31 is open on the outer side of the base body 37, and the top of the third mounting cavity 31 is provided with an open sliding socket 39, which cooperates with the sliding shaft 32. The bottom of the third mounting cavity 31 is provided with an open first mounting slot 40, which cooperates with the first electrical connector 35. The side cover plate 38 is positioned on the left and right sides of the base body 37. In the above structure, the base 30 adopts a combination of the base body 37 and the side cover plate 38, and the outer side of the third mounting cavity 31, the sliding socket 39 and the first mounting slot 40 are all open, thereby facilitating the installation of the sliding shaft 32 and the first electrical connector 35. The structural design is reasonable.

[0036] In the above embodiment, a circuit board 41 with an indicator light is also provided at the upper middle part of the base body 37, and a second mounting slot 42 is also provided at the corresponding position of the base body 37. A second power connector 43 is installed at the second mounting slot 42 and is connected to the circuit board 41. A light-transmitting cavity 44 is provided at the lower end of the core seat 3. In the above structure, the purpose of indicating the position of the emergency stop switch is achieved by the cooperation of the circuit board 41 with the indicator light and the second power connector 43. The circuit board 41 is set at the upper middle part of the base body 37, and the installation position of the circuit board 41 is reasonable. The setting of the light-transmitting cavity 44 makes the indication effect better. It should be noted that the sealing cover 26 can be made of flexible light-transmitting material.

[0037] In the above embodiment, the core base 3 is also provided with two second positioning sliders 45, which are positioned above the first positioning slider 14. A fourth positioning cavity 46 is provided in the first mounting cavity 8. The size of the fourth positioning cavity 46 is not smaller than the size of the large-diameter section cavity 16 on the third positioning cavity 15. The second positioning sliders 45 and the fourth positioning cavity 46 cooperate with each other. This arrangement makes the core base 3 more reliable in use.

[0038] In the above embodiment, the left and right side walls of the first positioning cavity 10 are both set as third guide slopes 47. By setting the third guide slopes 47, the positioning slide rod 7 can rotate back into the first positioning cavity 10 more smoothly, making it more reliable to use.

[0039] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A bidirectional reset emergency stop switch, comprising a contact mechanism and an operating mechanism, wherein the operating mechanism is disposed above the contact mechanism, characterized in that: The operating mechanism includes a mounting base (2), a core base (3), an inner button (4), a first elastic element (5), a second elastic element (6), and at least one positioning slide rod (7). The mounting base (2) is connected to the upper part of the outer shell (1). The mounting base (2) has a first mounting cavity (8) axially arranged on its upper part. The core base (3) is connected to the first mounting cavity (8), and the lower end of the core base (3) can extend to the lower part of the first mounting cavity (8). The inner button (4) is connected to the upper end of the core base (3). The first elastic element (5) is disposed in the first mounting cavity (8). The first elastic element (5) is used for... To provide force to the core seat (3), the core seat (3) is also radially provided with a second mounting cavity (9). The second elastic element (6) and the positioning slide rod (7) are disposed in the second mounting cavity (9) in an inward and outward manner. The first mounting cavity (8) is also provided with a first positioning recess (10) and a second positioning recess (11) in the upper and lower parts. The first positioning recess (10) and the second positioning recess (11) are used to cooperate with the positioning slide rod (7). The lower side of the first positioning recess (10) is provided with a first guide slope (12), and the left and right sides of the second positioning recess (11) are both provided with second guide slopes (13).

2. The bidirectional reset emergency stop switch according to claim 1, characterized in that: At least one first positioning slider (14) is provided on the bottom through-hole of the first mounting cavity (8). A third positioning cavity (15) is provided at the corresponding position on the lower outer wall of the core seat (3). The third positioning cavity (15) is provided with a large-diameter section chamber (16) and a small-diameter section chamber (17) above and below. An inclined section (18) is also provided on the two side walls of the large-diameter section chamber (16). The inclined section (18) is connected to the corresponding side wall of the small-diameter section chamber (17). The inner diameter of the small-diameter section chamber (17) is also adapted to the outer diameter of the first positioning slider (14).

3. The bidirectional reset emergency stop switch according to claim 1, characterized in that: The inner button (4) has a first mounting ring edge (19) on its inner side. The inner wall of the first mounting ring edge (19) has symmetrical snap-fit ​​slots (20) and symmetrical positioning slots (21). The core seat (3) has a second mounting ring edge (22). The outer wall of the second mounting ring edge (22) has symmetrical snap-fit ​​blocks (23) and symmetrical positioning pins (24). The snap-fit ​​blocks (23) cooperate with the snap-fit ​​slots (20), and the positioning pins (24) cooperate with the positioning slots (21).

4. The bidirectional reset emergency stop switch according to claim 3, characterized in that: The snap-fit ​​slot (20) and the snap-fit ​​plug (23) are slidably snap-fitted together, and a third elastic element (25) is provided on the inner side of the second mounting ring (22), the third elastic element (25) providing force for the inner button (4).

5. The bidirectional reset emergency stop switch according to claim 1, characterized in that: The second mounting cavity (9) is through-hole, and there are two of each of the positioning slide rod (7), the first positioning cavity (10) and the second positioning cavity (11).

6. The bidirectional reset emergency stop switch according to claim 1, characterized in that: A sealing cover (26) is provided between the contact mechanism and the operating mechanism, and the periphery of the sealing cover (26) is fixedly and sealed to the inner wall of the outer shell (1). The sealing cover (26) is made of flexible material.

7. The bidirectional reset emergency stop switch according to claim 1, characterized in that: The inner button (4) is also provided with a directional arrow (27) at its upper end, and an outer button (28) is also attached to the outer side of the inner button (4). A corresponding notch (29) is provided through the outer button (28), and the directional arrow (27) is embedded in the notch (29).

8. The bidirectional reset emergency stop switch according to claim 1, characterized in that: The contact mechanism includes a base (30) and two sets of on / off control components. Two third mounting cavities (31) are spaced apart on the left and right sides of the base (30). The on / off control components are correspondingly arranged in the third mounting cavities (31). Each on / off control component includes a sliding shaft (32), a moving contact (33), a fourth elastic element (34), a first contact element (35), and a fifth elastic element (36). The sliding shaft (32) is slidably disposed at the top of the third mounting cavity (31). The upper part of the sliding shaft (32)... The end cooperates with the core seat (3), the sliding shaft (32) is provided with a fourth mounting cavity, the moving contact (33) is transversely inserted through the fourth mounting cavity, the fourth elastic member (34) is provided between the bottom of the third mounting cavity (31) and the bottom of the sliding shaft (32), the first electrical contact (35) is inserted into the bottom of the third mounting cavity (31) and cooperates with both ends of the moving contact (33), and the fifth elastic member (36) is positioned and installed between the moving contact (33) and the fourth mounting cavity.

9. A bidirectional reset emergency stop switch according to claim 8, characterized in that: The base (30) includes a base body (37) and a side cover plate (38). The third mounting cavity (31) is open on the outer side of the base body (37), and the top of the third mounting cavity (31) is provided with an open sliding socket (39). The sliding socket (39) cooperates with the sliding shaft (32). The bottom of the third mounting cavity (31) is provided with an open first mounting slot (40). The first mounting slot (40) cooperates with the first electrical connector (35). The side cover plate (38) is positioned and installed on the left and right sides of the base body (37).

10. A bidirectional reset emergency stop switch according to claim 9, characterized in that: The upper middle part of the base body (37) is also provided with a circuit board (41) with an indicator light. The corresponding position of the base body (37) is also provided with a second mounting slot (42). A second power connector (43) is installed in the second mounting slot (42). The second power connector (43) is connected to the circuit board (41). A light-transmitting cavity (44) is provided on the lower end of the core seat (3).

Images