A relay with anti-corrosion function

Abstract

The present invention discloses a relay with anti-corrosion function, belonging to the field of relays, including a box, the upper end of the box is symmetrically provided with a first air cavity on the left and right, the front and rear ends of the slot are symmetrically provided with a first cover plate and a second cover plate, the middle part of the inner cavity of the box is provided with a second air cavity, the second air cavity is movably connected with a second piston rod, the upper end of the second piston rod is provided with a support plate, the second air cavity is symmetrically provided with a second air pipe on the left and right, a shock absorbing member is installed on the second air pipe, a hollow ball is provided in the middle of the shock absorbing member, a sliding sleeve is movably sleeved on the second air pipe, and the upper end of the sliding sleeve is connected to the support plate through a connecting plate. The present invention can play a role in damping the relay while ensuring the fixing effect of the baffle on the relay by setting the first air cavity, the second air cavity and the first air pipe and other structures, and the relay can be fixed by the gravity of the relay, saving energy consumption and improving resource utilization.

Description

Technical Field

[0001] The invention relates to the field of relays, and in particular to a relay with an anti-corrosion function. Background Art

[0002] Relay is an automatic switch element with isolation function. It is widely used in remote control, telemetry, communication, automatic control, mechatronics and power electronic equipment. It is one of the most important control elements. When the change of input quantity reaches the specified requirements, it is an electrical appliance that makes the controlled quantity undergo a predetermined step change in the electrical output circuit. It has an interactive relationship between the control system and the controlled system. It is usually used in the control circuit of automation. It is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection and conversion circuit in the circuit. Patent: CN201711053087.9 A relay with anti-corrosion function, through the first spring and the fixing plate, it is convenient to install and fix the relay body, and through the second shaft and the fixing block, it is convenient to protect the relay body while installing and fixing it to prevent corrosion. In the process of installing and fixing the relay, it uses multiple springs and wire ropes. The wire rope and spring are prone to rust during long-term use. Therefore, it is easy to increase the anti-corrosion effect of the relay. For this reason, we propose a relay with anti-corrosion function. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] The technical problem to be solved by the present invention is to provide a relay with anti-corrosion function, which can effectively solve the problem that the relay is easily corroded after long-term use, affecting the use of the relay.

[0005] 2. Technical solution

[0006] To solve the above problems, the present invention adopts the following technical solutions:

[0007] A relay with anti-corrosion function comprises a box body, wherein the upper end portion of the box body is symmetrically provided with first air cavities on the left and right sides, a first piston rod is movably connected in the first air cavity, a baffle is provided in the inner end portion of the first piston rod, a slot is provided in the upper end portion of the baffle, a first cover plate and a second cover plate are symmetrically provided in the front and rear ends of the slot, a first limit block and a second limit block are fixedly installed on the first cover plate and the second cover plate, respectively, a second air cavity is provided in the middle portion of the inner cavity of the box body, a second piston rod is movably connected in the second air cavity, a support plate is provided in the upper end portion of the second piston rod, a second air pipe is symmetrically provided in the second air cavity, a shock absorbing member is installed on the second air pipe, a hollow ball is provided in the middle portion of the shock absorbing member, a sliding sleeve is movably sleeved on the second air pipe, and the upper end of the sliding sleeve is connected to the support plate through a connecting plate.

[0008] Preferably, the connecting plate, the supporting plate and the sliding sleeve are all connected via a pin.

[0009] Preferably, the first air cavity and the second air cavity are connected to the second air cavity through a first air pipe, and the first air pipe runs through the box.

[0010] Preferably, the first trachea and the second trachea are in communication with the inner cavity of the second air cavity.

[0011] Preferably, the hollow ball is communicated with the inner cavity of the second trachea, and the hollow ball is arranged outside the sliding sleeve.

[0012] Preferably, the first limiting block is clamped on the second limiting block, and a plug plate is movably plugged into the second limiting block, and the plug plate is arranged on the front side of the first limiting block.

[0013] Preferably, a ventilation hole is provided on the second air cavity, and a blockage is provided inside the ventilation hole.

[0014] Preferably, a tapered groove with an upward port is formed at the lower end of the second piston rod, and the piston of the second piston rod is arranged below the second air pipe.

[0015] 3. Beneficial effects

[0016] (1) The present invention is provided with a first air cavity, a second air cavity, a first air pipe, a second air pipe, a first piston rod, a second piston rod, a support plate and a baffle. After the relay is placed on the support plate, the support plate moves downward and the second piston rod moves downward due to the gravity of the relay. The force formed on the second piston rod can push the piston to move in the second air cavity so that the gas in the second air cavity is compressed into the first air pipe. Through the connection of the first air pipe, the gas enters the first air cavity, thereby pushing the first piston rod and the baffle to move from the outside to the inside to limit the left and right side positions of the relay. On the other hand, during the downward movement of the support plate, through the connection of the connecting plate, the sliding sleeve moves from the inside to the outside on the second air pipe and squeezes the shock absorbing member. The shock absorbing member is squeezed, and the gas inside the shock absorbing member enters the upper end of the second air cavity to assist the second piston rod in pushing downward, which can reduce the vibration of the relay while ensuring the fixing effect of the baffle on the relay. The relay can be fixed by the gravity of the relay, saving energy consumption and improving resource utilization.

[0017] (2) The present invention is equipped with a first cover plate, a second cover plate, a first limit block, a second limit block and a plug plate, and a slot is provided on the baffle plate, so that the movement of the first cover plate and the second cover plate can be quickly guided, so that the first cover plate and the second cover plate can be easily removed during the installation of the relay, which can not only play an anti-corrosion effect on the upper end of the relay, but also make it easier to prevent corrosion of the relay;

[0018] (3) The present invention is equipped with ventilation holes and plugging, and provides ventilation holes on the second air cavity, so as to replace or replenish the circulating gas, thereby avoiding the use of steel wire ropes and spring components whose service life is limited and affects the fixing effect of the relay, thereby saving energy and protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main cross-sectional structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the shock absorbing member of the present invention;

[0022] Figure 4 It is a schematic diagram of the enlarged structure of the M position of the present invention;

[0023] Figure 5 It is a schematic diagram of the connection between the first cover plate and the second cover plate of the present invention.

[0024] Figure numerals: 1. box body; 2. first air cavity; 3. first piston rod; 4. baffle; 5. slot; 6. first cover plate; 7. second cover plate; 8. first limit block; 9. second limit block; 10. plug plate; 11. second air cavity; 12. ventilation hole; 13. blockage; 14. first air pipe; 15. second piston rod; 16. second air pipe; 17. shock absorber; 18. hollow ball; 19. sleeve; 20. connecting plate; 21 support plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-5An embodiment of the present invention is as follows: a relay with anti-corrosion function, comprising a box body 1, an anti-corrosion coating is provided on the outer side of the box body 1, and the material of the box body 1 is non-metal, which itself also has a certain anti-corrosion effect, and the upper end of the box body 1 is symmetrically provided with first air cavities 2 on the left and right sides, and the interiors of the first air cavity 2 and the second air cavity 11 are specially sealed to ensure the sealing effect, a first piston rod 3 is movably connected in the first air cavity 2, and a piston is provided at the inner end of the first piston rod 3, and the piston is arranged on the inner side of a first air pipe 14, and through the communication effect of the first air pipe 14, the gas is transported to the left side of the inner cavity of the first air cavity 2 with the help of the first air pipe 14, and then the first piston rod 3 is pushed to drive the baffle 4 to fix the relay, and the inner end of the first piston rod 3 is provided with a baffle 4, and the baffle 4 is welded to the inner end of the first piston rod 3, and the baffle 4 is welded to the inner end of the first piston rod 3. A slot 5 is provided at the upper end of the plate 4, and the front and rear ends of the slot 5 are through slots. By setting the slot 5, the first cover plate 6 and the second cover plate 7 can be guided. The first cover plate 6 and the second cover plate 7 are respectively inserted from the front and rear ends of the baffle 4, and are clamped by the first limit blocks 8 and the second limit blocks 9 on the first cover plate 6 and the second cover plate 7. The plug plate 10 is limited, so that the first cover plate 6 and the second cover plate 7 can be assembled into a whole cover plate. Since the outer sides of the first cover plate 6 and the second cover plate 7 are provided with an anti-corrosion coating, the corrosion of the relay can be prevented during the long-term use of the relay. The front and rear ends of the slot 5 are symmetrically provided with the first cover plate 6 and the second cover plate 7, respectively. The first limit blocks 8 and the second limit blocks 9 are fixedly installed on the first cover plate 6 and the second cover plate 7, respectively. The longitudinal section of the second limit block 9 is in the shape of an "L", and the first limit block 8 is clamped with the second limit block 9. Specifically, Figure 5A second air cavity 11 is provided in the middle of the inner cavity of the box body 1, and a ventilation hole 12 is provided on the second air cavity 11, and a plug 13 is provided in the ventilation hole 12. The setting of the ventilation hole 12 can play a role in replacing the second air cavity 11 and increasing the amount of gas in the second air cavity 11. A second piston rod 15 is movably connected in the second air cavity 11, and the upper end of the second piston rod 15 is fixedly welded to the support plate 21. The second piston rod 15 and the support plate 21 are perpendicular to each other. The support plate 21 can stably support and fix the support plate 21 through the second piston rod 15 and the connecting plates 20 provided on the left and right sides of the second piston rod 15. The lower end of the connecting plate 20 is inclined outward, and the upper and lower ends are fixed to the support plate 21 and the sliding sleeve 19 through a pin shaft. The sliding sleeve 19 and the support plate 21 are both provided with a support ear seat for connecting the connecting plate 20. The lower end of the second piston rod 15 is provided with a tapered groove with the port facing upward, and the piston of the second piston rod 15 is provided below the second air pipe 16. By setting the lower end surface of the piston on the second piston rod 15 to be a tapered groove with the port facing upward and the middle part protruding upward, when the second piston rod 15 is forced to move downward, the gas in the second air cavity 11 can be dispersed to both sides while moving downward, so that it is more convenient for the gas to enter the first air cavity 2 through the first air pipes 14 on both sides. The upper end of the second piston rod 15 is provided with a support plate 21, and the second air cavity 11 is symmetrically provided with second air pipes 16. The connection between the first air pipe 14 and the first air cavity 2 and the second air cavity 11 is sealed to form a vacuum as much as possible inside the first air pipe 14, the second air pipe 16, the first air cavity 2 and the second air cavity 11, so as to ensure the circulation of the gas. The first air cavity 2 and the second air cavity 11 are connected to the second air cavity 11 through the first air pipe 14, and the first air pipe 14 runs through the box body 1. The first air pipe 14 and the second air pipe 16 are in communication with the inner cavity of the second air cavity 11. The second air pipe 16 is provided with a shock absorbing member 17, which can be made of flexible rubber. The connection between the shock absorbing member 17 and the first air pipe 14 is also specially sealed. Since the rubber itself has a certain elasticity, after the relay is placed on the support plate 21, due to the gravity of the relay and the connection of the connecting plate 20, the central line angle between the connecting plate 20 and the first air pipe 14 can be gradually reduced (i.e., the angle is less than 90° in the initial state). Thus, the sliding sleeve 19 is formed in the second air pipe 16. The air pipe 16 moves outward, squeezing the shock absorbing member 17. In addition to its own elasticity, the shock absorbing member 17 is also provided with a hollow ball 18. After the hollow ball 18 is squeezed by the sliding sleeve 19, the air inside the hollow ball 18 is gradually compressed into the upper end of the inner cavity of the second air cavity 11. The process of squeezing the hollow ball 18 can also reduce the shock of the relay. A hollow ball 18 is provided in the middle of the shock absorbing member 17. The hollow ball 18 is communicated with the inner cavity of the second air pipe 16, and the hollow ball 18 is arranged on the outside of the sliding sleeve 19.The second air pipe 16 is movably connected with a sliding sleeve 19, and the upper end of the sliding sleeve 19 is connected to the support plate 21 through a connecting plate 20. The connecting plate 20, the support plate 21 and the sliding sleeve 19 are all connected through a pin. The first limit block 8 is clamped on the second limit block 9, and the second limit block 9 is movably connected with an insert plate 10, and the insert plate 10 is arranged on the front side of the first limit block 8.

[0027] Working principle: When in use, in the initial state, the second piston rod 15 is arranged at the upper end of the second air cavity 11, the shock absorbing member 17 is in the original state, the distance between adjacent baffles 4 is greater than the width of the relay, and after the relay is placed on the support plate 21, due to the deadweight of the relay itself, the support plate 21 moves downward, and the second piston rod 15 moves from top to bottom in the second air cavity 11, so that the force formed on the second piston rod 15 can push the piston to move in the second air cavity 11, so that the gas in the second air cavity 11 is compressed into the first air pipe 14, and the gas enters the first air pipe 14 through the communication effect of the first air pipe 14. The air cavity 2 further pushes the first piston rod 3 and the baffle 4 to move from the outside to the inside to limit the left and right side positions of the relay. At the same time, after the support plate 21 moves downward, the connecting plate 20 is subjected to a force from top to bottom, and rotates inward around the pin connected to the sliding sleeve 19, thereby squeezing the shock absorber 17 to make the sliding sleeve 19 move from the inside to the outside on the second air pipe 16. After the shock absorber 17 is squeezed, the gas inside the hollow ball 18 is squeezed into the upper end of the inner cavity of the second air cavity 11, which assists the downward movement of the second piston rod 15 and increases the fixing effect of the baffle 4 on the relay.

[0028] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A relay with corrosion resistance, comprising a housing (1), characterized in that: The upper end of the box body (1) is symmetrically provided with first air cavities (2) on the left and right sides, a first piston rod (3) is movably connected in the first air cavity (2), a baffle (4) is provided at the inner end of the first piston rod (3), a slot (5) is provided at the upper end of the baffle (4), a first cover plate (6) and a second cover plate (7) are symmetrically provided at the front and rear ends of the slot (5), a first limit block (8) and a second limit block (9) are fixedly mounted on the first cover plate (6) and the second cover plate (7), respectively, and a second limit block (8) and a second limit block (9) are fixedly mounted on the first cover plate (6) and the second cover plate (7), respectively. A second limit block (9) is provided in the middle of the inner cavity of the box body (1). An air cavity (11), a second piston rod (15) is movably connected in the second air cavity (11), a support plate (21) is provided at the upper end of the second piston rod (15), a second air pipe (16) is symmetrically provided in the second air cavity (11), a shock absorbing member (17) is installed on the second air pipe (16), a hollow ball (18) is provided in the middle of the shock absorbing member (17), a sliding sleeve (19) is movably sleeved on the second air pipe (16), and the upper end of the sliding sleeve (19) is connected to the support plate (21) via a connecting plate (20); The connecting plate (20), the supporting plate (21) and the sliding sleeve (19) are all connected via a pin; The first air cavity (2) and the second air cavity (11) are connected to the second air cavity (11) via a first air pipe (14), and the first air pipe (14) runs through the box body (1); The hollow ball (18) is in communication with the inner cavity of the second air pipe (16), and the hollow ball (18) is arranged outside the sliding sleeve (19); The outer side of the box body (1) is provided with an anti-corrosion coating, and the material of the box body (1) is non-metallic and itself also has a certain anti-corrosion effect. The outer side surfaces of the first cover plate (6) and the second cover plate (7) are provided with an anti-corrosion coating to prevent the relay from being corroded during long-term use of the relay. The first cover plate (6) and the second cover plate (7) are symmetrically provided at the front and rear ends of the slot (5), respectively.

2. The relay with corrosion resistance according to claim 1, characterized in that: The first air tube (14) and the second air tube (16) are in communication with the inner cavity of the second air cavity (11).

3. The relay with corrosion resistance according to claim 1, characterized in that: The first limit block (8) is clamped on the second limit block (9), and a plug plate (10) is movably plugged into the second limit block (9), wherein the plug plate (10) is arranged on the front side of the first limit block (8).

4. The relay with corrosion resistance according to claim 1, characterized in that: The second air cavity (11) is provided with a ventilation hole (12), and a plug (13) is provided in the ventilation hole (12).

5. The relay with corrosion resistance according to claim 1, characterized in that: The lower end of the second piston rod (15) is provided with a tapered groove with the port facing upward, and the piston of the second piston rod (15) is arranged below the second air pipe (16).

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