Three-position switch for environment-friendly gas cabinet

Abstract

The utility model discloses a three-position switch for an environment-friendly gas cabinet, and belongs to the field of three-position switches. Comprising a mounting frame; the switch body is arranged on the mounting frame; the plurality of servo motors are detachably mounted on the mounting frame, and the servo motors correspond to the switch bodies; the connecting plates correspond to the servo motors, and output shafts of the servo motors are rotationally connected with the connecting plates; one end of the connecting rod is fixedly connected to the connecting plate, and the other end of the connecting rod is fixedly connected to the mounting frame; the screw rod is rotationally mounted on the connecting plate, and an output shaft of the servo motor is fixedly connected with the screw rod; the first abutting rod is in threaded connection with the lead screw; the limiting rod is fixedly connected to the connecting plate, the limiting rod penetrates through the first abutting rod, and the limiting rod and the first abutting rod are installed in a sliding mode; and the reset assembly is arranged on the mounting frame. The three-position switch for the environment-friendly gas cabinet has the beneficial effect that the three-position switch for the environment-friendly gas cabinet is high in safety coefficient.

Description

Technical Field

[0001] The present application relates to the field of three-position switches, and in particular to a three-position switch for an environmentally friendly gas cabinet. Background Art

[0002] Three-position switch, abbreviated as 3PS in English. Two-position load switch means that it has only closed position and open position; three-position load switch means that it has closed position, open position and grounding position. Cut-off and isolation are different. Cut-off only means that the circuit has been disconnected and the load has been removed; isolation not only includes the cut-off state, but also indicates that the gap between the power supply side and the load side is large.

[0003] The structure of the product can refer to a three-position switch for an environmentally friendly gas cabinet disclosed in Chinese patent document CN202222380871.3, which includes a mounting bracket, a main shaft, and at least one switch mechanism; the main shaft can be rotatably matched with the mounting bracket; the switch mechanism includes a moving contact matched with the main shaft and driven to rotate by the main shaft, a closing static contact installed on the mounting bracket and in active contact with the moving contact, and a grounding static contact installed on the mounting bracket and in active contact with the moving contact; the moving contact has at least two moving contact pieces arranged side by side, the closing static contact is provided with a closing opening for each moving contact piece of the moving contact to be respectively embedded one by one, and the grounding static contact is provided with a grounding opening for each moving contact piece of the moving contact to be respectively embedded one by one. The utility model three-position switch for an environmentally friendly gas cabinet has the advantages of accurate closing and grounding.

[0004] Some three-position switches need to be installed in an environmental gas cabinet. When the environmental gas cabinet needs to be maintained, the power supply needs to be turned off through the three-position switch. However, this patent requires the staff to manually turn off the three-position switch, which is troublesome on the one hand and may be dangerous on the other hand.

[0005] A three-position switch with a high safety factor for an environmentally friendly gas cabinet is now provided. Utility Model Content

[0006] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0007] In order to solve the technical problems mentioned in the above background technology part, some embodiments of the present application provide a three-position switch for an environmentally friendly gas cabinet, including: a mounting frame; a switch body, which is arranged on the mounting frame; a servo motor, which is arranged in multiple numbers and is detachably installed on the mounting frame, and the servo motor corresponds to the switch body; a connecting plate, which is arranged in multiple numbers and corresponds to the servo motor, and the output shaft of the servo motor is rotatably connected to the connecting plate; a connecting rod, and one end is fixed to the connecting plate, and the other end is fixed to the mounting frame; a screw rod, which is rotatably installed on the connecting plate, and the output shaft of the servo motor is fixed to the screw rod; a first resistance rod, which is threadedly connected to the screw rod; a limit rod, which is fixed to the connecting plate, and the limit rod passes through the first resistance rod, and the limit rod is slidably installed with the first resistance rod; a reset assembly, which is arranged on the mounting frame and corresponds to the switch body; a mounting plate, which is arranged in multiple numbers and is fixed to the mounting frame, and a mounting bolt is threadedly connected to the mounting plate.

[0008] When the switch body needs to be installed, the switch body is installed in the environmental protection gas cabinet by installing bolts. When the environmental protection gas cabinet needs to be inspected, the servo motor can be started first, so that the output shaft of the servo motor drives the screw to rotate, and under the action of the limit rod, the first resistance rod is lowered, so that the first resistance block is lowered, so that the first resistance block squeezes the switch body, thereby closing the switch body, which is convenient for subsequent maintenance and improves the safety factor. When it needs to be opened, the first resistance rod is raised, so that the first resistance block is raised, so that the first resistance block no longer resists the switch body, and then under the action of the reset spring, the second resistance rod resists the switch body to open it, and there is no need for the staff to reach into the environmental protection gas cabinet to switch, thereby improving the safety factor. The servo motor and the reset assembly can be detachably mounted on the mounting frame, which is convenient for replacement.

[0009] Furthermore, the reset assembly is set to be multiple and corresponds to the servo motor, and the reset assembly is detachably mounted on the mounting frame, the reset assembly includes a sleeve, and the sleeve is detachably mounted on the mounting frame, and a second resistance rod is slidably mounted on the sleeve, and the second resistance rod corresponds to the switch body, and a reset spring is fixedly connected between the second resistance rod and the inner wall of the sleeve.

[0010] Furthermore, limiting grooves are respectively provided on the two inner walls of the sleeve, and limiting blocks corresponding to the limiting grooves are fixedly connected to the second abutting rod.

[0011] Furthermore, a second fixing plate is fixedly connected to the bottom of the sleeve, and the second fixing plate is located on a fixing frame, and a second fixing bolt is threadedly connected to the fixing frame, and the second fixing bolt is threadedly connected to the mounting frame.

[0012] Furthermore, the number of the second fixing bolts is two, and the two second fixing bolts are symmetrically arranged.

[0013] Furthermore, the sleeve is located between the two second fixing bolts.

[0014] Furthermore, a first fixing plate is fixedly connected to the top of the servo motor, and the first fixing plate is located on the mounting frame, and a first fixing bolt is threadedly connected to the first fixing plate.

[0015] Furthermore, the number of the first fixing bolts is two, and the two first fixing bolts are symmetrically arranged, and the servo motor is located between the two first fixing bolts.

[0016] Furthermore, a second resistance block is fixedly connected to the second resistance rod, and a first resistance block is arranged on the first resistance rod.

[0017] Furthermore, two limit rods are provided on each of the connecting plates.

[0018] The beneficial effect of the present application is that a three-position switch for an environmentally friendly gas cabinet with a high safety factor is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0020] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0021] In the attached picture:

[0022] Figure 1 is an overall schematic diagram according to an embodiment of the present application;

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of an embodiment;

[0024] Figure 3 It is a cross-sectional view;

[0025] Figure 4 yes Figure 1 A magnified view of part A;

[0026] Figure 5 yes Figure 2 A magnified view of part B;

[0027] Figure 6 yes Figure 3 Enlarged view of part C.

[0028] Reference numerals:

[0029] 1. Mounting frame; 2. Servo motor; 3. Screw rod; 4. Limit rod; 5. First resistance rod; 6. First resistance block; 7. Second resistance block; 8. Sleeve; 9. Second resistance rod; 10. Switch body; 11. Mounting plate; 12. Mounting bolt; 13. Connecting rod; 14. Connecting plate; 15. Second fixing plate; 16. First fixing plate; 17. First fixing bolt; 18. Second fixing bolt; 19. Limit block; 20. Limiting groove; 21. Reset spring. DETAILED DESCRIPTION

[0030] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0031] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0032] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0033] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0034] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0035] Reference Figure 1-5A three-position switch for an environmentally friendly gas cabinet comprises: a mounting frame 1, a switch body 10, a servo motor 2, a connecting plate 14, a connecting rod 13, a screw rod 3, a first abutment rod 5, a limit rod 4, a reset assembly, and a mounting plate 11. The switch body 10 is arranged on the mounting frame 1. The servo motor 2 is provided in a plurality and is detachably mounted on the mounting frame 1, and the servo motor 2 corresponds to the switch body 10. The connecting plate 14 is provided in a plurality and corresponds to the servo motor 2, and the output shaft of the servo motor 2 is rotatably connected to the connecting plate 14. The connecting rod 13 is fixedly connected to the connecting plate 14 at one end and fixedly connected to the mounting frame 1 at the other end. The screw rod 3 is rotatably mounted on the connecting plate 14, and the output shaft of the servo motor 2 is fixedly connected to the screw rod 3. The first abutment rod 5 is threadedly connected to the screw rod 3. The limit rod 4 is fixedly connected to the connecting plate 14, and the limit rod 4 passes through the first abutment rod 5, and the limit rod 4 is slidably mounted on the first abutment rod 5. A plurality of mounting plates 11 are provided and fixedly connected to the mounting frame 1 , and mounting bolts 12 are threadedly connected to the mounting plates 11 .

[0036] The reset assembly is arranged on the mounting frame 1 and corresponds to the switch body 10. The reset assembly is arranged in multiple numbers and corresponds to the servo motor 2, and the reset assembly is detachably mounted on the mounting frame 1. The reset assembly includes a sleeve 8, and the sleeve 8 is detachably mounted on the mounting frame 1, and a second resisting rod 9 is slidably mounted on the sleeve 8, and the second resisting rod 9 corresponds to the switch body 10, and a reset spring 21 is fixedly connected between the second resisting rod 9 and the inner wall of the sleeve. Limiting grooves 20 are respectively provided on the two inner walls of the sleeve 8, and a limiting block 19 corresponding to the limiting groove 20 is fixedly connected to the second resisting rod 9. A second fixing plate 15 is fixedly connected to the bottom of the sleeve 8, and the second fixing plate 15 is located on the fixing frame, and a second fixing bolt 18 is threadedly connected to the fixing frame, and the second fixing bolt 18 is threadedly connected to the mounting frame 1. Two second fixing bolts 18 are arranged, and the two second fixing bolts 18 are symmetrically arranged. The sleeve 8 is located between the two second fixing bolts 18.

[0037] A first fixing plate 16 is fixedly connected to the top of the servo motor 2, and the first fixing plate 16 is located on the mounting frame 1, and a first fixing bolt 17 is threadedly connected to the first fixing plate 16. Two first fixing bolts 17 are provided, and the two first fixing bolts 17 are symmetrically arranged, and the servo motor 2 is located between the two first fixing bolts 17. A second interference block 7 is fixedly connected to the second interference rod 9, and a first interference block 6 is provided on the first interference rod 5. Two limit rods 4 are provided on each connecting plate 14.

[0038] Working process: when the switch body 10 needs to be installed, the switch body 10 is installed in the environmental protection gas cabinet through the mounting bolts 12. When the environmental protection gas cabinet needs to be inspected, the servo motor 2 can be started first, so that the output shaft of the servo motor 2 drives the screw rod 3 to rotate, and under the action of the limit rod 4, the first resistance rod 5 is lowered, so that the first resistance block 6 is lowered, so that the first resistance block 6 squeezes the switch body 10, so as to close the switch body 10, which is convenient for subsequent maintenance and improves the safety factor. When it is necessary to open, the first resistance rod 5 is raised, so that the first resistance block 6 is raised, so that the first resistance block 6 does not resist the switch body 10. Then, under the action of the reset spring 21, the second resistance rod 9 resists the switch body 10 to open it, and there is no need for the staff to reach into the environmental protection gas cabinet to switch, thereby improving the safety factor. The servo motor 2 and the reset assembly can be detachably mounted on the mounting frame 1, so as to facilitate its replacement.

[0039] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A three-position switch for an environmentally friendly gas cabinet, comprising: Mounting frame; The switch body is arranged on the mounting frame; Features: The three-position switch for the environmental protection gas cabinet also includes: The servo motors are provided in multiple numbers and are detachably mounted on the mounting frame, and the servo motors correspond to the switch body; A plurality of connecting plates are provided, and correspond to the servo motors, and the output shaft of the servo motor is rotationally connected to the connecting plates; A connecting rod, one end of which is fixedly connected to the connecting plate, and the other end of which is fixedly connected to the mounting frame; The lead screw is rotatably mounted on the connecting plate, and the output shaft of the servo motor is fixedly connected to the lead screw; A first interference rod, threadedly connected to the lead screw; A limit rod is fixedly connected to the connecting plate, and the limit rod passes through the first abutment rod, and the limit rod and the first abutment rod are slidably installed; A reset assembly is arranged on the mounting frame and corresponds to the switch body; The mounting plates are arranged in plurality and fixedly connected to the mounting frame, and the mounting plates are threadedly connected with mounting bolts.

2. The three-position switch for an environmentally friendly gas cabinet according to claim 1 is characterized in that: The reset assembly is provided in plurality and corresponds to the servo motor, and the reset assembly is detachably mounted on the mounting frame, the reset assembly includes a sleeve, and the sleeve is detachably mounted on the mounting frame, and a second resistance rod is slidably mounted on the sleeve, and the second resistance rod corresponds to the switch body, and a reset spring is fixedly connected between the second resistance rod and the inner wall of the sleeve.

3. The three-position switch for an environmentally friendly gas cabinet according to claim 2 is characterized in that: Limiting grooves are respectively arranged on the two inner walls of the sleeve, and limiting blocks corresponding to the limiting grooves are fixedly connected to the second abutting rod.

4. The three-position switch for an environmentally friendly gas cabinet according to claim 3 is characterized in that: A second fixing plate is fixedly connected to the bottom of the sleeve, and the second fixing plate is located on the fixing frame, and a second fixing bolt is threadedly connected to the fixing frame, and the second fixing bolt is threadedly connected to the mounting frame.

5. The three-position switch for an environmentally friendly gas cabinet according to claim 4 is characterized in that: The number of the second fixing bolts is two, and the two second fixing bolts are symmetrically arranged.

6. The three-position switch for an environmentally friendly gas cabinet according to claim 5, characterized in that: The sleeve is located between the two second fixing bolts.

7. The three-position switch for an environmentally friendly gas cabinet according to claim 1, characterized in that: A first fixing plate is fixedly connected to the top of the servo motor, and the first fixing plate is located on the mounting frame. A first fixing bolt is threadedly connected to the first fixing plate.

8. The three-position switch for an environmentally friendly gas cabinet according to claim 7, characterized in that: The number of the first fixing bolts is two, and the two first fixing bolts are symmetrically arranged, and the servo motor is located between the two first fixing bolts.

9. The three-position switch for an environmentally friendly gas cabinet according to claim 2, characterized in that: The second abutment rod is fixedly connected with a second abutment block, and the first abutment rod is provided with a first abutment block.

10. The three-position switch for an environmentally friendly gas cabinet according to claim 1, characterized in that: Two limiting rods are arranged on each of the connecting plates.

Images