An electrical timing connection device for building construction

Abstract

The invention discloses an electrical timing connection device for building construction, and relates to the technical field of connection devices, including a time-controlled switch housing and a rear cover plate, wherein a relay is arranged in the time-controlled switch housing, an armature is arranged in the relay, a movable contact plate is arranged on the armature, a normally closed contact plate and a normally open contact plate are arranged in the relay, and a rectangular hole is opened on the relay. The invention arranges a wedge block and a connection box in the time-controlled switch housing, matches the wedge block and the connection box, and then delivers a solvent such as alcohol or ethanol into a first sponge block, and then moves the first sponge block back and forth, so that the movable contact plate and the normally closed contact plate in the relay and the contacts on the normally open contact plate can be wiped and cleaned, thereby effectively cleaning and removing the dirt and mucus on the contact surface, thereby preventing the relay from having problems such as poor contact in subsequent use, which affects the operation of the relay.

Description

Technical Field

[0001] The invention relates to the technical field of connection devices, and in particular to an electrical timing connection device for building construction. Background Art

[0002] Electrical equipment is a general term for generators, transformers, power lines, circuit breakers and other equipment in the power system. When electrical appliances are used in construction, electrical timed connection devices are generally used for control.

[0003] The current electrical timing connection device has been found to have at least the following technical problems:

[0004] First, current electrical timing connection devices all use relays to connect and disconnect circuits. However, the contacts in the relays may become sticky when used at high temperatures for a long time, causing a large amount of dirt and mucus to accumulate on the contacts, thus affecting the operation of the relays.

[0005] Second, since the upper end cover of the relay in the current electrical timing connection device is an integrated design, when the contacts in the relay need to be cleaned and lubricated, the electrical timing connection device needs to be disassembled and then the relay needs to be disassembled, which makes the operation steps too cumbersome and increases the difficulty of cleaning the relay.

[0006] Third, when the relay in the electrical timing connection device is completely damaged, the relay needs to be replaced. However, when the current relay is removed from the connection device, it is necessary to first remove the back cover of the connection device using a tool, and then use the tool to pull the relay out of the circuit board in the connection device, which makes the steps for replacing the relay cumbersome and affects the efficiency of relay replacement. Summary of the invention

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies in the prior art, the present invention provides an electrical timing connection device for construction to solve the above-mentioned technical problems.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] An electrical timing connection device for construction, comprising a time-controlled switch housing and a rear cover plate, wherein a relay is arranged in the time-controlled switch housing, an armature is arranged inside the relay, a movable contact plate is arranged on the armature, a normally closed contact plate and a normally open contact plate are arranged inside the relay, a rectangular hole is opened on the relay, a hanger is arranged on the relay, a Z-shaped block is fixedly installed on the hanger, a U-shaped frame is fixedly installed on the Z-shaped block, two racks are fixedly installed on the U-shaped frame, a cross groove is opened on the inner wall of the time-controlled switch housing, and the A wedge block is vertically slidably installed in the cross groove opened in the housing of the time-controlled switch, a connecting box is provided below the wedge block, a first sponge block and a second sponge block are provided on the connecting box, the first sponge block is located at the side end of the rectangular hole opened in the relay, a flip plate is hinged on the rear cover plate through a rotating shaft and a torsion spring, gears are fixedly installed on both side ends of the flip plate, the two gears are respectively meshed with two racks, a sliding plate is provided on the flip plate, an L-shaped pressure plate is fixedly installed on the sliding plate, and the L-shaped pressure plate is located at the upper end of the wedge block and contacts with each other.

[0012] Preferably: a circuit board is provided inside the time-controlled switch housing, the relay is arranged above the circuit board, the movable contact plate is located between the normally closed contact plate and the normally open contact plate, both side ends of the relay are provided with slide grooves, the relay is slidably connected to the hanger through the opened slide grooves, a first spring is fixedly installed on the connecting box, the first spring is located between the second sponge block and the first sponge block, the first spring is attached to the side of the relay, a sliding rod is provided on the connecting box, the sliding rod is attached to the outer wall of the time-controlled switch housing, two liquid filling ports are provided on the connecting box, the two racks are slidably installed inside the rear cover plate, and limit strips are fixedly installed on both side ends of the flip plate.

[0013] Preferably: the sliding plate is slidably connected to the flip plate through the limit of two limit bars, the sliding plate is penetrated by a locking screw, the locking screw is threadedly connected to the rear cover plate, and a rectangular through hole is provided on the rear cover plate, a convex fixing plate is fixedly installed inside the time-controlled switch housing, the convex fixing plate is provided with a convex groove, the convex fixing plate is provided with an ejection top plate, and the ejection top plate is located on one side of the relay, and a second guide rod is fixedly installed on the ejection top plate, the second guide rod is slidably installed in the convex groove, and a third spring is movably sleeved on the circumferential surface of the second guide rod, a movable groove is provided on the ejection top plate, and a lifting plate is provided in the movable groove provided by the convex fixing plate, and a first guide rod is slidably installed on the lifting plate, the first guide rod is fixedly installed in the movable groove provided by the convex fixing plate, and the second spring is sleeved on the circumferential surface of the first guide rod.

[0014] (III) Beneficial effects

[0015] One: The present invention arranges a wedge block and a connection box in a time-controlled switch housing, matches the wedge block and the connection box, and then delivers a solvent such as alcohol or ethanol into a first sponge block. Then, the first sponge block moves back and forth, so that the movable contact plate and the normally closed contact plate inside the relay and the contacts on the normally open contact plate can be wiped and cleaned, thereby effectively cleaning and removing the dirt and mucus on the contact surface, thereby preventing the relay from having problems such as poor contact in subsequent use, which affects the operation of the relay.

[0016] Second: The present invention allows the connection box to move by setting a second sponge block at the side end of the connection box and sliding the connection box in a cross groove provided in the housing of the time-controlled switch, thereby changing the position of the first sponge block and the second sponge block, so that after cleaning the contacts on the movable contact plate, the normally closed contact plate and the normally open contact plate, the contacts on the upper end thereof can be coated with lubricating oil, thereby effectively improving the service life and sensitivity of the relay.

[0017] 3: When the present invention cleans and lubricates the contacts on the movable contact plate, the normally closed contact plate and the normally open contact plate inside the relay, the sliding plate slides on the flip plate. When the sliding plate slides down, the rectangular through hole provided on the rear cover plate will be half opened. At this time, the staff can observe other components inside the time control switch housing through the rectangular through hole while operating the relay, so as to promptly discover problems with other components.

[0018] Fourth: The present invention arranges the relay under the hanger, and then fixes the Z-shaped block, the U-shaped frame and the two racks in connection, and then meshes the two racks with the two gears, so that the device can remove the relay while flipping the flip plate, without the need to remove the rear cover at the rear end of the time switch housing, thereby effectively improving the efficiency of removing the relay from the circuit board.

[0019] 5. The present invention uses a convex fixing plate and an internal structure provided inside the time switch housing so that after the relay is removed from the circuit board, the lifting plate and the ejection top plate can be separated by a hanger, and then the ejection top plate can be ejected by the elastic force of a third spring, so that the relay can be ejected from the inside of the time switch housing, and the relay and the time switch housing are separated, thereby effectively improving the linkage between the various components of the device when the relay is disassembled, and improving the efficiency of replacing the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0021] Figure 1 It is a structural diagram of the whole invention;

[0022] Figure 2 It is a structural diagram of the rear cover plate of the present invention;

[0023] Figure 3 This is a structural diagram of the housing of the time-controlled switch of the present invention;

[0024] Figure 4 is a structural diagram of a relay of the present invention;

[0025] Figure 5 It is a structural diagram of the convex fixing plate of the present invention;

[0026] Figure 6 It is a structural diagram of the flip plate of the present invention;

[0027] Figure 7 It is a structural diagram of the rear cover plate of the present invention;

[0028] Figure 8 is a structural diagram of the rack of the present invention;

[0029] Fig. 9 For the present invention Figure 3 A magnified view of the structure at A.

[0030] Legend: 11. Relay; 12. Movable contact plate; 13. Armature; 14. Normally closed contact plate; 15. Normally open contact plate; 16. Rectangular hole; 17. Circuit board; 18. Time switch housing; 21. Connection box; 22. First spring; 23. First sponge block; 24. Second sponge block; 25. Slide bar; 26. Wedge block; 31. Hanger; 32. Z-shaped block; 33. U-shaped frame; 34. Rack; 51. Flip plate; 52. Gear; 53. Limiting strip; 54. Sliding plate; 55. L-shaped pressure plate; 56. Locking screw; 57. Back cover; 61. Convex fixing plate; 62. First guide rod; 63. Second spring; 64. Lifting plate; 65. Ejection top plate; 66. Second guide rod; 67. Third spring; 68. Movable slot; 69. Convex slot. DETAILED DESCRIPTION

[0031] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] Example: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, in view of the problems existing in the prior art, the present invention provides an electrical timing connection device for construction, including a time-controlled switch housing 18 and a rear cover plate 57, a relay 11 is arranged in the time-controlled switch housing 18, an armature 13 is arranged inside the relay 11, a movable contact plate 12 is arranged on the armature 13, a normally closed contact plate 14 and a normally open contact plate 15 are arranged inside the relay 11, a rectangular hole 16 is opened on the relay 11, a hanger 31 is arranged on the relay 11, a Z-shaped block 32 is fixedly installed on the hanger 31, a U-shaped frame 33 is fixedly installed on the Z-shaped block 32, two racks 34 are fixedly installed on the U-shaped frame 33, a cross groove is opened on the inner wall of the time-controlled switch housing 18, and a vertical sliding arrangement is arranged in the cross groove opened in the time-controlled switch housing 18. A wedge block 26 is provided, a connection box 21 is provided below the wedge block 26, a first sponge block 23 and a second sponge block 24 are provided on the connection box 21, the first sponge block 23 is located at the side end of the rectangular hole 16 opened in the relay 11, a flip plate 51 is hinged on the rear cover plate 57 through a rotating shaft and a torsion spring, gears 52 are fixedly installed on both sides of the flip plate 51, and the two gears 52 are respectively engaged with the two racks 34, a sliding plate 54 is provided on the flip plate 51, and an L-shaped pressing plate 55 is fixedly installed on the sliding plate 54, and the L-shaped pressing plate 55 is located at the upper end of the wedge block 26 and contacts each other. When the timing connection device is used, the wiring ports at the upper and lower ends of the time-controlled switch housing 18 are respectively connected to the power supply and the electrical appliance used, and when the relay in the timing connection device is turned on When the electrical appliance 11 is used for a long time and dirt and mucus are present between the normally closed contact plate 14, the normally open contact plate 15 and the movable contact plate 12, a solvent such as alcohol or ethanol is added from the liquid filling port opened at the side end of the connection box 21, so that the solvent such as alcohol or ethanol flows into the first sponge block 23 through the connection box 21 and covers the surface of the first sponge block 23. At this time, the locking screw 56 is disassembled by using a tool, and the locking screw 56 is separated from the rear cover plate 57 and the sliding plate 54. Then, the sliding plate 54 can be operated to move the sliding plate 54 downward, and the L-shaped pressing plate 55 fixedly installed with the sliding plate 54 will also move downward. Since the L-shaped pressing plate 55 is located above the wedge block 26 and fits closely, the L-shaped pressing plate 55 is When the wedge block 26 moves downward, it will squeeze the wedge block 26 downward. Since the side surface of the wedge block 26 is an inclined surface, the wedge block 26 will exert a force on the connection box 21 to move toward the side end when it moves downward. At this time, the connection box 21 will drive the first sponge block 23 to pass through the rectangular hole 16 opened in the relay 11 and move toward the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15 inside the relay 11. The alcohol or ethanol solvent on the surface of the first sponge block 23 will wipe and clean the contacts on the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15. In addition, a first spring 22 is provided between the connection box 21 and the relay 11 to play a rebound role on the connection box 21, so that the wedge block 26 can move up and down.Thus, the alcohol or ethanol solvent on the surface of the first sponge block 23 can wipe the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15 back and forth. The present invention sets a wedge block 26 and a connection box 21 in the time-controlled switch housing 18, and then cooperates with the wedge block 26 and the connection box 21, and then delivers a solvent such as alcohol or ethanol into the first sponge block 23, and then through the back and forth movement of the first sponge block 23, the movable contact plate 12, the normally closed contact plate 14, and the contacts on the normally open contact plate 15 inside the relay 11 can be wiped and cleaned, thereby effectively cleaning and removing the dirt and mucus on the contact surface, thereby preventing the relay 11 from having problems such as poor contact in subsequent use, which affects the operation of the relay 11.

[0033] A circuit board 17 is provided inside the time-controlled switch housing 18, and the relay 11 is arranged above the circuit board 17. The movable contact plate 12 is located between the normally closed contact plate 14 and the normally open contact plate 15. Slide grooves are provided on both sides of the relay 11. The relay 11 is slidably connected to the hanger 31 through the opened slide grooves. A first spring 22 is fixedly installed on the connection box 21. The first spring 22 is located between the second sponge block 24 and the first sponge block 23. The first spring 22 is attached to the side of the relay 11, and the movable contact plate 12 and the normally closed contact plate 14 and the normally open contact plate 15 inside the relay 11 are connected. After the contact plate 15 is cleaned, the sliding rod 25 is moved horizontally so that the sliding rod 25 drives the connecting box 21 to move in the cross groove provided in the time-controlled switch housing 18. At this time, the second sponge block 24 at the side end of the connecting box 21 will be aligned with the rectangular hole 16 provided in the relay 11. At this time, the lubricating oil can be added from another liquid filling port provided at the side end of the connecting box 21. The lubricating oil will flow through the connecting box 21 to the second sponge block 24, thereby covering the surface of the second sponge block 24 with the lubricating oil. Then, the sliding plate 54, the L-shaped pressing plate 55 and the wedge block 26 are operated to allow the second sponge block 24 to be filled with the lubricating oil. The second sponge block 24 lubricates the contacts of the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15. The present invention provides the second sponge block 24 at the side end of the connection box 21, and slides the connection box 21 in the cross groove of the time-controlled switch housing 18, so that the connection box 21 can be moved, and then the position of the first sponge block 23 and the second sponge block 24 can be changed, so that after cleaning the contacts on the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15, the contacts at the upper end thereof can be lubricated with oil. The coating effectively improves the service life and sensitivity of the relay 11. When the present invention cleans and lubricates the contacts on the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15 inside the relay 11, the sliding plate 54 slides on the flip plate 51. When the sliding plate 54 slides down, the rectangular through hole provided in the rear cover plate 57 will be half opened. At this time, the staff can observe other components inside the time-controlled switch housing 18 through the rectangular through hole while operating the relay 11, so as to promptly discover problems with other components.

[0034] The connecting box 21 is provided with a slide bar 25, which is attached to the outer wall of the time-controlled switch housing 18. The connecting box 21 is provided with two liquid filling ports. The two racks 34 are slidably installed inside the rear cover plate 57. The two side ends of the flip plate 51 are fixedly installed with limit strips 53. The sliding plate 54 is slidably connected to the flip plate 51 through the limit of the two limit strips 53. A locking screw 56 is installed through the sliding plate 54. The locking screw 56 is connected to the rear cover plate 57 by threads. A rectangular through hole is opened on the rear cover plate 57. When the relay 11 inside the time-controlled switch housing 18 is completely damaged, the flip plate 51 can be operated, and then a series of structures are used to remove the relay 11 from the circuit board 17 in the time-controlled switch housing 18. After the locking screw 56 is separated from the sliding plate 54 and the rear cover plate 57, the flip plate 51 is flipped. Through the hinge between the flip plate 51 and the rear cover plate 57, the flip plate 51 can The two gears 52 are driven to rotate around the center point of the hinge, and then the two gears 52 are engaged with the two racks 34, so that the two racks 34 will move upward. When the two racks 34 move upward, they will drive the U-shaped frame 33, the Z-shaped block 32 and the hanger 31 to move upward. At this time, since the hanger 31 and the relay 11 are clamped, the hanger 31 will lift the relay 11 upward, and then the relay 11 can be removed from the circuit board 17. The present invention arranges the relay 11 below the hanger 31, and then fixes the Z-shaped block 32, the U-shaped frame 33 and the two racks 34 in connection, and then the two racks 34 are engaged with the two gears 52, so that the device can remove the relay 11 while flipping the flip plate 51, without the need to remove the rear cover 57 at the rear end of the time-controlled switch housing 18, thereby effectively improving the efficiency of removing the relay 11 from the circuit board 17.

[0035] A convex fixing plate 61 is fixedly installed inside the time-controlled switch housing 18, and a convex groove 69 is provided on the convex fixing plate 61. An ejection top plate 65 is provided on the convex fixing plate 61. The ejection top plate 65 is located on one side of the relay 11. A second guide rod 66 is fixedly installed on the ejection top plate 65. The second guide rod 66 is slidably installed in the convex groove 69. A third spring 67 is movably sleeved on the circumferential surface of the second guide rod 66. A movable groove 68 is provided on the ejection top plate 65. A lifting and lowering mechanism is provided in the movable groove 68 provided on the convex fixing plate 61. The lifting plate 64 is provided with a first guide rod 62 which is slidably mounted on the lifting plate 64. The first guide rod 62 is fixedly mounted in a movable groove 68 provided in the convex fixing plate 61. The circumferential surface of the first guide rod 62 is sleeved with a second spring 63. After the relay 11 is removed from the circuit board 17, the hanger 31 will continue to move upward. When it moves to the position of the lifting plate 64, the hanger 31 will squeeze the lifting plate 64. At this time, the lifting plate 64 will move upward, and at this time, the ejection top plate 65 will separate from the lifting plate 64, and then pass The third spring 67 arranged at the rear end of the ejection top plate 65 allows the ejection top plate 65 to be ejected by the third spring 67. At this time, the ejection top plate 65 will eject the relay 11 suspended on the hanger 31 toward the rectangular through hole opened in the rear cover plate 57, thereby completing the removal of the relay 11 from the inside of the time-controlled switch housing 18, and there is no need to remove the back cover of the time-controlled switch housing 18. The present invention uses the convex fixing plate 61 and its internal structure arranged inside the time-controlled switch housing 18 to enable the device to separate the lifting plate 64 and the ejection top plate 65 through the hanger 31 after the relay 11 is removed from the circuit board 17, and then the ejection top plate 65 is ejected by the elastic force of the third spring 67, so that the relay 11 can be ejected from the inside of the time-controlled switch housing 18, completing the separation of the relay 11 from the time-controlled switch housing 18, thereby effectively improving the linkage between the various components of the device when the relay 11 is disassembled, and improving the efficiency of replacing the relay 11. The electrical timing connection device is a device used in the field of construction.

[0036] Working principle:

[0037] In the first step, when the timing connection device is used, the connection ports at the upper and lower ends of the time switch housing 18 are respectively connected to the power supply and the electrical appliance. When the relay 11 in the timing connection device has dirt and mucus between the normally closed contact plate 14, the normally open contact plate 15 and the movable contact plate 12 due to long-term use, a solvent such as alcohol or ethanol is added from the liquid filling port opened at the side end of the connection box 21, so that the solvent such as alcohol or ethanol flows into the first sponge block 23 through the connection box 21 and covers the surface of the first sponge block 23. At this time, the locking screw 56 is disassembled by using a tool. Separate the locking screw 56 from the rear cover 57 and the sliding plate 54, and then operate the sliding plate 54 to move the sliding plate 54 downward. The L-shaped pressing plate 55 fixedly installed with the sliding plate 54 will also move downward. Since the L-shaped pressing plate 55 is located above the wedge block 26 and fits with it, the wedge block 26 will be squeezed downward when the L-shaped pressing plate 55 moves downward. Since the side of the wedge block 26 is an inclined surface, the wedge block 26 will exert a force on the connection box 21 to move toward the side end when it moves downward. At this time, the connection box 21 will drive the first sponge block 23 to pass through the rectangular hole 16 opened in the relay 11 , moves toward the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15 inside the relay 11, and the alcohol or ethanol solvent on the surface of the first sponge block 23 will wipe and clean the contacts on the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15, and a first spring 22 is provided between the connection box 21 and the relay 11, which plays a rebound role for the connection box 21, so that the wedge block 26 can move up and down, so that the alcohol or ethanol solvent on the surface of the first sponge block 23 can wipe the movable contact plate 12, the normally closed contact plate 14, and the normally open contact plate 15 back and forth. Wiping, the present invention arranges a wedge block 26 and a connection box 21 in the time-controlled switch housing 18, and then cooperates the wedge block 26 and the connection box 21, and then delivers a solvent such as alcohol or ethanol into the first sponge block 23, and then through the back and forth movement of the first sponge block 23, the movable contact plate 12 and the normally closed contact plate 14 inside the relay 11 and the contacts on the normally open contact plate 15 can be wiped and cleaned, thereby effectively cleaning and removing the dirt and mucus on the contact surface, thereby preventing the relay 11 from having problems such as poor contact in subsequent use, which affects the operation of the relay 11.

[0038] In the second step, after the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15 inside the relay 11 are cleaned, the sliding rod 25 is moved horizontally so that the sliding rod 25 drives the connecting box 21 to move in the cross groove provided in the time-controlled switch housing 18. At this time, the second sponge block 24 at the side end of the connecting box 21 will be aligned with the rectangular hole 16 provided in the relay 11. At this time, the lubricating oil can be added from another liquid filling port provided at the side end of the connecting box 21. The lubricating oil will flow to the second sponge block 24 through the connecting box 21, thereby covering the surface of the second sponge block 24 with the lubricating oil. Then, the sliding plate 54, the L-shaped pressing plate 55 and the wedge block 26 are operated, so that the second sponge block 24 can apply oil to the contacts of the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15. The present invention adopts the second sponge block 24 provided at the side end of the connecting box 21, and the connecting box 21 is slidably provided at the time The cross groove of the time-controlled switch housing 18 is provided, so that the connection box 21 can be moved, and then the position of the first sponge block 23 and the second sponge block 24 can be changed, so that after the contacts on the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15 are cleaned, the contacts on the upper ends thereof are coated with lubricating oil, which effectively improves the service life and sensitivity of the relay 11. When the movable contact plate 12, the normally closed contact plate 14 and the normally open contact plate 15 inside the relay 11 are cleaned and lubricated, the sliding plate 54 slides on the flip plate 51. When the sliding plate 54 slides down, the rectangular through hole provided on the rear cover plate 57 will be half opened. At this time, the staff can observe other components inside the time-controlled switch housing 18 through the rectangular through hole while operating the relay 11, so as to promptly discover problems with other components.

[0039] In the third step, when the relay 11 inside the time-controlled switch housing 18 is completely damaged, the flip plate 51 can be operated, and then the Z-shaped block 32 and the hanger 31 are moved upward, so that the relay 11 can be removed from the circuit board 17 in the time-controlled switch housing 18. After the locking screw 56 is separated from the sliding plate 54 and the rear cover plate 57, the flip plate 51 is flipped. Through the hinge between the flip plate 51 and the rear cover plate 57, the flip plate 51 can drive the two gears 52 to rotate around the center point of the hinge, and then the two gears 52 are engaged with the two racks 34, so that the two racks 34 will move upward, and when the two racks 34 move upward, they will drive the U-shaped frame 33 The Z-shaped block 32 and the hanger 31 move upward. At this time, since the hanger 31 and the relay 11 are clamped, the hanger 31 will lift the relay 11 upward, and then the relay 11 can be removed from the circuit board 17. The present invention arranges the relay 11 below the hanger 31, and then fixes the Z-shaped block 32, the U-shaped frame 33 and the two racks 34. After that, the two racks 34 are engaged with the two gears 52, so that the device can remove the relay 11 while flipping the flip plate 51. There is no need to remove the rear cover 57 at the rear end of the time-controlled switch housing 18, which effectively improves the efficiency of removing the relay 11 from the circuit board 17.

[0040] In the fourth step, after the relay 11 is removed from the circuit board 17, the hanger 31 will continue to move upward. When it moves to the position of the lifting plate 64, the hanger 31 will squeeze the lifting plate 64. At this time, the lifting plate 64 will move upward, and the ejection top plate 65 will be separated from the lifting plate 64. Then, the ejection top plate 65 will be ejected by the third spring 67 provided at the rear end of the ejection top plate 65. At this time, the ejection top plate 65 will eject the relay 11 suspended on the hanger 31 toward the rectangular through hole provided in the rear cover plate 57, thereby completing the removal of the relay 11 from the inside of the time-controlled switch housing 18, and there is no need to re-engage the time-controlled The rear cover of the switch housing 18 is disassembled. The present invention uses a convex fixing plate 61 and an internal structure arranged inside the time-controlled switch housing 18 so that after the device removes the relay 11 from the circuit board 17, the lifting plate 64 and the ejection top plate 65 can be separated by the hanger 31, and then the ejection top plate 65 is pushed out by the elastic force of the third spring 67, so that the relay 11 can be ejected from the inside of the time-controlled switch housing 18, completing the separation of the relay 11 from the time-controlled switch housing 18, thereby effectively improving the linkage between the various components of the device when the relay 11 is disassembled, and improving the efficiency of replacing the relay 11.

[0041] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. An electrical timed switching device for construction, comprising a time-controlled switch housing (18) and a rear cover plate (57), characterized in that: A relay (11) is arranged in the housing (18) of the time-controlled switch, a normally closed contact plate (14) and a normally open contact plate (15) are arranged inside the relay (11), and a rectangular hole (16) is opened on the relay (11); The relay (11) is provided with a hanger (31), a Z-shaped block (32) is fixedly mounted on the hanger (31), a U-shaped frame (33) is fixedly mounted on the Z-shaped block (32), and two racks (34) are fixedly mounted on the U-shaped frame (33); The inner wall of the time switch housing (18) is provided with a cross groove, a wedge block (26) is vertically slidably mounted in the cross groove of the time switch housing (18), a connection box (21) is provided below the wedge block (26), and a first sponge block (23) and a second sponge block (24) are provided on the connection box (21); The rear cover plate (57) is hingedly connected to a flip plate (51) via a rotating shaft and a torsion spring, gears (52) are fixedly mounted on both side ends of the flip plate (51), the two gears (52) are respectively meshed with two racks (34), a sliding plate (54) is provided on the flip plate (51), an L-shaped pressing plate (55) is fixedly mounted on the sliding plate (54), and the L-shaped pressing plates (55) are located at the upper end of the wedge block (26) and are in contact with each other; The relay (11) is provided with an armature (13) inside, the armature (13) is provided with a movable contact plate (12), and the time-controlled switch housing (18) is provided with a circuit board (17) inside; The relay (11) is arranged above the circuit board (17), the movable contact plate (12) is located between the normally closed contact plate (14) and the normally open contact plate (15), both sides of the relay (11) are provided with slide grooves, the relay (11) is slidably connected to the hanger (31) through the slide grooves, the first sponge block (23) is located at the side end of the rectangular hole (16) opened in the relay (11), a first spring (22) is fixedly mounted on the connection box (21), the first spring (22) is located between the second sponge block (24) and the first sponge block (23), and the first spring (22) is attached to the side of the relay (11); The connection box (21) is provided with a slide bar (25), the slide bar (25) is attached to the outer wall of the time-controlled switch housing (18), and the connection box (21) is provided with two liquid filling ports; The solvent is transported into the first sponge block (23), and then the first sponge block (23) is moved back and forth to wipe and clean the contacts on the movable contact plate (12), the normally closed contact plate (14) and the normally open contact plate (15) in the relay (11). Lubricating oil is then added from the liquid filling port on the connection box (21), and the lubricating oil flows to the second sponge block (24) through the connection box (21). Then, the sliding plate (54), the L-shaped pressing plate (55) and the wedge block (26) are operated to move the connection box (21), change the positions of the first sponge block (23) and the second sponge block (24), and apply oil to the contacts of the movable contact plate (12), the normally closed contact plate (14) and the normally open contact plate (15) through the second sponge block (24).

2. The electrical timing connection device for construction according to claim 1, characterized in that: The two racks (34) are slidably mounted inside the rear cover (57); Wherein, limit strips (53) are fixedly mounted on both side ends of the flip plate (51).

3. The electrical timing connection device for construction according to claim 2, characterized in that: The sliding plate (54) is slidably connected to the flip plate (51) through the limitation of two limiting strips (53); A locking screw (56) is installed through the sliding plate (54), the locking screw (56) is connected to the rear cover plate (57) via a thread, and a rectangular through hole is provided on the rear cover plate (57).

4. The electrical timing connection device for construction according to claim 3, characterized in that: A convex fixing plate (61) is fixedly installed inside the time switch housing (18), and a convex groove (69) is formed on the convex fixing plate (61); Wherein, an ejection top plate (65) is provided on the convex fixing plate (61), and the ejection top plate (65) is located on one side of the relay (11).

5. The electrical timing connection device for construction according to claim 4, characterized in that: A second guide rod (66) is fixedly mounted on the ejection top plate (65), and the second guide rod (66) is slidably mounted in the convex groove (69); A third spring (67) is movably sleeved on the circumferential surface of the second guide rod (66), and a movable groove (68) is provided on the ejection top plate (65).

6. The electrical timing connection device for construction according to claim 5, characterized in that: A lifting plate (64) is provided in the movable groove (68) formed in the convex fixing plate (61), and a first guide rod (62) is slidably mounted through the lifting plate (64); The first guide rod (62) is fixedly mounted in a movable groove (68) provided in the convex fixing plate (61), and a second spring (63) is sleeved on the circumferential surface of the first guide rod (62).

Images