Automatic cleaning mechanism for relay contacts
By designing an automatic cleaning mechanism that includes a hollow plate, a U-shaped plate, gears, and a clamping mechanism, the problem of incomplete cleaning in the prior art is solved, achieving comprehensive cleaning of relay contacts and improving the service life and reliability of the relay.
Patent Information
- Application Number
- CN202520099189.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-16
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-16
AI Technical Summary
Existing automatic cleaning mechanisms for relay contacts are incomplete in cleaning complex dirt on the contact surface, especially metal oxides in corners or crevices, which affects the normal operation and service life of the relay.
An automatic cleaning mechanism was designed, comprising a hollow plate, a U-shaped plate, a U-shaped extrusion plate, gears, a motor, a cleaning rod, and a clamping mechanism. Through gear meshing and belt drive, the cleaning rod and cleaning brush can thoroughly clean the contacts, and the clamping mechanism driven by a servo motor can adapt to relays of different sizes.
This method enables thorough cleaning of relay contacts, improving cleaning effectiveness and extending the lifespan and reliability of the relays.
Smart Images

Figure CN223811301U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to cleaning equipment technical field especially relates to relay contact automatic cleaning mechanism. BACKGROUND
[0002] Relay as a kind of electric control device, is widely used in various electrical equipment. When input reaches specified value, the output circuit controlled by it can make predetermined step change, play the role of automatic regulation, safety protection and conversion circuit. From industrial automation production line, to smart home control device, to automobile electronic equipment, relay is everywhere, is one of the key components to guarantee the stable and reliable operation of electrical equipment.
[0003] The existing relay contact automatic cleaning mechanism plays a certain role in maintaining relay performance, and the existing part cleaning mechanism avoids the situation that contact is not in good contact due to dirt accumulation caused by long-term use by periodically wiping the surface of contact, however, due to the single cleaning method, simple linear reciprocating wiping is mostly used, this wiping method cannot clean comprehensively and effectively when facing complex dirt distribution on the surface of contact, when metal oxides generated by arc effect exist on the surface of contact and adhere to corners or gaps, linear reciprocating wiping cannot reach these areas, resulting in incomplete cleaning, which will affect the normal work of relay, reduce its service life and reliability. UTILITY MODEL CONTENT
[0004] In order to make up for the above shortcomings, the utility model provides a relay contact automatic cleaning mechanism, aiming at improving the problem that linear reciprocating wiping cannot clean oxides in corners or gaps in the prior art.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a relay contact automatic cleaning mechanism, comprising a hollow plate, the top of the hollow plate is fixedly connected with a hollow frame, the inner wall of the hollow frame is slidably connected with a U-shaped plate on the front and back sides, the outer side of the U-shaped plate is slidably connected with a U-shaped extrusion plate, the outer wall of the screw column is connected with a fastening bolt in a threaded manner, the outer wall of the screw column penetrates through the U-shaped extrusion plate, the outer wall of the U-shaped plate is fixedly connected with a motor at the bottom, a plurality of gear wheels one are rotatably connected to the inner wall of the U-shaped plate, the top of the gear wheel one penetrates through the U-shaped plate and is fixedly connected with a double-pulley, the top of the two gear wheels one penetrates through the U-shaped plate and is fixedly connected with a transmission wheel, the outer wall of the double-pulley is provided with a belt on the upper and lower sides respectively and corresponds to the outer wall of the transmission wheel, the outer wall of the plurality of gear wheels one is meshingly connected with a special-shaped hollow block, the inner wall of the special-shaped hollow block is fixedly connected with a plurality of cleaning rods, the bottom of the special-shaped hollow block is fixedly connected with a plurality of bottom cleaning brushes, and the left side of the hollow plate is provided with a clamping mechanism.
[0006] As a further description of the above technical solutions:
[0007] The clamping mechanism comprises a servo motor, the servo motor is fixedly connected to the left side of the hollow plate, the output end of the servo motor is fixedly connected with a gear two, the outer wall of the gear two is meshed and connected with a rack on the left and right sides, the bottom of the rack is fixedly connected with a clamping plate, the rear side of the clamping plate on the front side is fixedly connected with a supporting plate, the front side of the clamping plate on the rear side is provided with a notch, and the supporting plate is clamped with the notch.
[0008] As a further description of the above technical solutions:
[0009] The outer wall of the hollow plate is fixedly connected with a limiting block on the top side of the front part, and the front side of the limiting block is fixedly connected with a nameplate.
[0010] As a further description of the above technical solutions:
[0011] The bottom side of the front part of the hollow plate is fixedly connected with a fixed plate, and the front side of the fixed plate is fixedly connected with a warning mark block.
[0012] As a further description of the above technical solutions:
[0013] The outer wall of the hollow plate is fixedly connected with a plurality of L-shaped mounting seats, and the inner wall of the L-shaped mounting seat is provided with a fixing bolt.
[0014] As a further description of the above technical solutions:
[0015] The top of the supporting plate is provided with a plurality of anti-skid grooves, and the outer wall of the clamping plate is fixedly connected with a plurality of wear-resistant blocks.
[0016] As a further description of the above technical solutions:
[0017] The top of the hollow frame is fixedly connected with a stand, and the top of the stand is fixedly connected with a warning light.
[0018] As a further description of the above technical solutions:
[0019] The inner wall of the hollow plate is fixedly connected with a slide rail at the bottom, and the outer wall of the slide rail is slidingly connected with the corresponding clamping plate on the front and rear sides.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1. The utility model discloses a hollow frame is provided with the U-shaped plate, the U-shaped extrusion plate, the screw post, the fastening bolt, the motor, the gear one, the double pulley, the transmission wheel, the belt, the special-shaped hollow block, the cleaning stick and the cleaning brush, and the relay contact is cleaned.
[0022] 2. The utility model discloses a support plate is provided with the gear two, the rack, the clamping plate and the servo motor, and the relay contact is cleaned. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is the perspective view of relay contact automatic cleaning mechanism that the utility model provides;
[0024] Figure 2 It is the front view of relay contact automatic cleaning mechanism that the utility model provides;
[0025] Figure 3 It is the side view of relay contact automatic cleaning mechanism that the utility model provides;
[0026] Figure 4 It is the structure schematic diagram of special-shaped hollow block of relay contact automatic cleaning mechanism that the utility model provides;
[0027] Figure 5 It is the schematic diagram of clamping mechanism of relay contact automatic cleaning mechanism that the utility model provides.
[0028] LEGEND:
[0029] 1, hollow board;2, clamping mechanism;201, servo motor;202, gear two;203, rack;204, clamping plate;205, support plate;206, recess;3, hollow frame;4, U-shaped plate;5, U-shaped extrusion plate;6, stud;7, fastening bolt;8, motor;9, gear one;10, double pulley;11, transmission wheel;12, belt;13, special-shaped hollow block;14, cleaning stick;15, bottom cleaning brush;16, limit block;17, nameplate;18, fixed plate;19, warning mark block;20, L-shaped mounting seat;21, fixed bolt;22, antiskid groove;23, wear block;24, stand;25, warning light;26, slide rail. DETAILED DESCRIPTION
[0030] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0031] With reference to Figure 1 , Figure 2 and Figure 4 , the present application provides an embodiment: a relay contact automatic cleaning mechanism, comprising a hollow plate 1, the top of the hollow plate 1 is fixedly connected with a hollow frame 3, the inner wall of the hollow frame 3 is slidably connected with a U-shaped plate 4 on the front and rear sides, the outer side of the U-shaped plate 4 is slidably connected with a U-shaped extrusion plate 5, the outer wall of the left side of the screw column 6 is fixedly connected with the U-shaped extrusion plate 5, the outer wall of the screw column 6 is threaded and connected with a fastening bolt 7, the fastening bolt 7 is rotated so that it no longer extrudes the U-shaped extrusion plate 5, then the U-shaped plates 4 on both sides are moved so that the special-shaped hollow block 13 is sleeved on the two side contacts of the relay to be cleaned, then the fastening bolt 7 is rotated so that the U-shaped extrusion plate 5 slides above the U-shaped plate 4 and is extruded and fixed with the left side of the hollow frame 3, the outer wall of the bottom of the U-shaped plate 4 is fixedly connected with a motor 8, the inner wall of the U-shaped plate 4 is rotatably connected with a plurality of gear wheels 9, the top of the middle gear wheel 9 penetrates the U-shaped plate 4 and is fixedly connected with a double pulley 10, the motor 8 is started so that it drives the middle gear wheel 9 to rotate and simultaneously drives the double pulley 10 above to rotate, the top of the two gear wheels 9 on the front and rear sides penetrates the U-shaped plate 4 and is fixedly connected with a transmission wheel 11, the outer wall of the double pulley 10 is provided with a belt 12 on the upper and lower sides, respectively, and the outer wall of the corresponding transmission wheel 11 is provided with a belt 12, respectively, the transmission wheels 11 on the front and rear sides are driven by the belts 12 on the outer sides, so that the plurality of gear wheels 9 in the U-shaped plate 4 rotate together, the outer wall of the plurality of gear wheels 9 is meshingly connected with the special-shaped hollow block 13, the inner wall of the special-shaped hollow block 13 is fixedly connected with a plurality of cleaning rods 14, the bottom of the special-shaped hollow block 13 is fixedly connected with a plurality of bottom cleaning brushes 15, the special-shaped hollow block 13 is driven to rotate by the meshing relationship between the gear wheels 9 and the special-shaped hollow block 13, so that the cleaning rods 14 above rotate together with the bottom cleaning brushes 15, and the left side of the hollow plate 1 is provided with a clamping mechanism 2.
[0032] Specifically, the relay to be cleaned is placed on the right side of the hollow frame 3, the fastening bolt 7 is rotated so that it no longer presses the U-shaped pressing plate 5, then the U-shaped plates 4 on both sides are moved so that the special-shaped hollow block 13 is sleeved on the two side contacts of the relay to be cleaned, then the fastening bolt 7 is rotated so that the U-shaped pressing plate 5 slides above the U-shaped plate 4 and is pressed and fixed with the left side of the hollow frame 3, the motor 8 is started in time to drive the middle gear one 9 to rotate and simultaneously drive the upper double-layer pulley 10 to rotate, through the outer side belt 12, the front and rear transmission wheels 11 are driven respectively, and then the plurality of gear ones 9 in the U-shaped plate 4 rotate together, the special-shaped hollow block 13 is driven to rotate through the meshing relationship between the gear one 9 and the special-shaped hollow block 13, so that the upper cleaning rod 14 rotates together with the bottom cleaning brush 15, thereby more comprehensively cleaning the relay contact.
[0033] With reference to Figure 1 , Figure 2 and Figure 5 , the clamping mechanism 2 comprises a servo motor 201 fixedly connected to the left side of the hollow plate 1, the output end of the servo motor 201 is fixedly connected with a gear two 202, the servo motor 201 is started to drive the gear two 202 to rotate, the left and right sides of the outer wall of the gear two 202 are meshingly connected with a rack 203, the bottom of the rack 203 is fixedly connected with a clamping plate 204, the clamping plate 204 is driven by the rack 203 to complete clamping of the relay through the meshing relationship between the gear two 202 and the rack 203, the rear side of the front clamping plate 204 is fixedly connected with a support plate 205, the front side of the rear clamping plate 204 is provided with a notch 206, the support plate 205 is engaged with the notch 206, and the support plate 205 passes through the notch 206, so that it can clamp relays of different sizes.
[0034] Specifically, the relay is placed on the support plate 205, then the servo motor 201 is started to drive the gear two 202 to rotate, and the clamping plate 204 is driven by the rack 203 to complete clamping of the relay through the meshing relationship between the gear two 202 and the rack 203, in the clamping process, the support plate 205 passes through the notch 206, so that it can clamp relays of different sizes.
[0035] With reference to Figure 1 , Figure 2 and Figure 3The outer wall of the hollow plate 1 is fixedly connected with a front top side of a limiting block 16, the front side of the limiting block 16 is fixedly connected with a nameplate 17, the limiting block 16 can provide a mounting space for the nameplate 17, and the type and basic conditions can be recorded through the nameplate 17; the front bottom side of the hollow plate 1 is fixedly connected with a fixed plate 18, the front side of the fixed plate 18 is fixedly connected with a warning sign block 19, the fixed plate 18 can provide a mounting space for the warning sign block 19, and the matters needing attention in the use process can be prompted through the warning sign block 19; the outer wall of the hollow plate 1 is fixedly connected with a plurality of L-shaped mounting seats 20, the inner wall of the L-shaped mounting seat 20 is provided with a fixed bolt 21, the L-shaped mounting seat 20 can install the device, and the L-shaped mounting seat 20 can be firmly fixed through the fixed bolt 21.
[0036] Specifically, the limiting block 16 can provide a mounting space for the nameplate 17, and the type and basic conditions can be recorded through the nameplate 17, the fixed plate 18 can provide a mounting space for the warning sign block 19, and the matters needing attention in the use process can be prompted through the warning sign block 19, and the L-shaped mounting seat 20 can install the device, and the L-shaped mounting seat 20 can be firmly fixed through the fixed bolt 21.
[0037] Referring to Figure 1 , Figure 3 and Figure 5 , a plurality of anti-skid grooves 22 are formed in the top of the supporting plate 205, a plurality of wear-resistant blocks 23 are fixedly connected to the outer wall of the clamping plate 204, the anti-skid grooves 22 can increase the anti-skid ability of the supporting plate 205, and the wear-resistant blocks 23 can increase the durability of the clamping plate 204; a stand 24 is fixedly connected to the top of the hollow frame 3, a warning light 25 is fixedly connected to the top of the stand 24, the stand 24 can provide a mounting space for the warning light 25, and the warning light 25 can remind the operator when a fault occurs; a slide rail 26 is fixedly connected to the inner wall of the hollow plate 1, and the slide rail 26 is slidably connected to the corresponding clamping plate 204 at the front and rear of the outer wall of the slide rail 26, and the slide rail 26 can facilitate the movement of the clamping plate 204.
[0038] Specifically, the anti-skid grooves 22 can increase the anti-skid ability of the supporting plate 205, and the wear-resistant blocks 23 can increase the durability of the clamping plate 204, the stand 24 can provide a mounting space for the warning light 25, and the warning light 25 can remind the operator when a fault occurs, and the slide rail 26 can facilitate the movement of the clamping plate 204.
[0039] Working principle: first, the relay to be cleaned is placed on the right side of the hollow frame 3, and the fastening bolt 7 is tightened to ensure that it does not press the U-shaped extrusion plate 5, then the U-shaped plate 4 on both sides is moved, and the special-shaped hollow block 13 is fitted on both sides of the contact of the relay to be cleaned, then the fastening bolt 7 is tightened again, the U-shaped extrusion plate 5 slides above the U-shaped plate 4, and is tightly fixed on the left side of the hollow frame 3, then the motor 8 is started to drive the middle gear 1 9 to rotate, and the upper double-layer pulley 10 is rotated synchronously, the front and rear transmission wheels 11 are driven through the outer belt 12, and the multiple gear 1 9 in the U-shaped plate 4 is rotated, the special-shaped hollow block 13 is rotated through the meshing mechanism of the gear 1 9 and the special-shaped hollow block 13, and the cleaning rod 14 above and the cleaning brush 15 at the bottom are rotated synchronously, so that the relay contact is cleaned more thoroughly.
[0040] And through the clamping mechanism 2, the relay is placed on the support plate 205, then the servo motor 201 is started to drive the gear 2 02 to rotate, the gear 2 02 is meshed with the rack 203, the rack 203 drives the clamping plate 204, and the accurate clamping of the relay is completed, in the clamping process, the support plate 205 passes through the notch 206, and various sizes of relays can be clamped.
[0041] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. An automatic cleaning mechanism for relay contacts, comprising a hollow plate (1), characterized in that: A hollow frame (3) is fixedly connected to the top of the hollow plate (1). A U-shaped plate (4) is slidably connected to both the front and rear sides of the inner wall of the hollow frame (3). A U-shaped extrusion plate (5) is slidably connected to the outer side of the U-shaped plate (4). A stud (6) is fixedly connected to the left side of the outer wall of the U-shaped plate (4). The outer wall of the stud (6) penetrates the U-shaped extrusion plate (5) and is threaded with a fastening bolt (7). A motor (8) is fixedly connected to the bottom of the outer wall of the U-shaped plate (4). Multiple gears (9) are rotatably connected to the inner wall of the U-shaped plate (4). The top of the gear (9) in the middle penetrates the U-shaped plate (4) and... A double-layer pulley (10) is fixedly connected. The top of the two gears (9) on the front and rear sides passes through the U-shaped plate (4) and is fixedly connected to a transmission wheel (11). The upper and lower sides of the outer wall of the double-layer pulley (10) are respectively provided with belts (12) and the outer walls of the corresponding transmission wheels (11). The outer walls of the multiple gears (9) are meshed with irregular hollow blocks (13). The inner wall of the irregular hollow block (13) is fixedly connected with multiple cleaning rods (14). The bottom of the irregular hollow block (13) is fixedly connected with multiple bottom cleaning brushes (15). A clamping mechanism (2) is provided on the left side of the hollow plate (1).
2. The automatic cleaning mechanism for relay contacts according to claim 1, characterized in that: The clamping mechanism (2) includes a servo motor (201), which is fixedly connected to the left side of the hollow plate (1). The output end of the servo motor (201) is fixedly connected to a gear (202). The outer walls of the gear (202) are meshed with racks (203) on both sides. The bottom of the racks (203) is fixedly connected to clamping plates (204). The rear side of the front clamping plate (204) is fixedly connected to a support plate (205). The front side of the rear clamping plate (204) has a notch (206), and the support plate (205) engages with the notch (206).
3. The automatic cleaning mechanism for relay contacts according to claim 1, characterized in that: A limiting block (16) is fixedly connected to the top side of the front part of the outer wall of the hollow plate (1), and a nameplate (17) is fixedly connected to the front side of the limiting block (16).
4. The automatic cleaning mechanism for relay contacts according to claim 1, characterized in that: A fixing plate (18) is fixedly connected to the bottom front side of the hollow plate (1), and a warning sign block (19) is fixedly connected to the front side of the fixing plate (18).
5. The automatic cleaning mechanism for relay contacts according to claim 1, characterized in that: The hollow plate (1) has multiple L-shaped mounting seats (20) fixedly connected to its outer wall, and the inner wall of the L-shaped mounting seats (20) is provided with fixing bolts (21).
6. The automatic cleaning mechanism for relay contacts according to claim 2, characterized in that: The top of the support plate (205) is provided with multiple anti-slip grooves (22), and the outer wall of the clamping plate (204) is fixedly connected with multiple wear-resistant blocks (23).
7. The automatic cleaning mechanism for relay contacts according to claim 1, characterized in that: The top of the hollow frame (3) is fixedly connected to a column (24), and the top of the column (24) is fixedly connected to a warning light (25).
8. The automatic cleaning mechanism for relay contacts according to claim 2, characterized in that: The bottom of the inner wall of the hollow plate (1) is fixedly connected to a slide rail (26), and the outer wall of the slide rail (26) is slidably connected to the corresponding clamping plate (204) at both the front and rear.