Contact device and electromagnetic relay

Abstract

The invention discloses a contact device and an electromagnetic relay, and relates to the technical field of relays. The device comprises a mounting box, the two adjacent sides of the mounting box are open, a mounting plate used for shielding the openings is mounted in the mounting box, a plurality of first touch plates and second touch plates are mounted in the mounting box, and one end of each first touch plate and one end of each second touch plate are connecting ends. According to the application, several corresponding telescopic parts are controlled to stretch out through the adjusting part, and the telescopic parts can touch the second touch plates in the corresponding directions after stretching out, so that the second touch plates in contact with the telescopic parts are closer to the first touch plate than other second touch plates, and when the follow-up moving frame moves due to electrification, the second touch plates are more close to the first touch plate. And after the movable frame moves to the maximum limit position, the second touch plate in contact with the telescopic part is in contact with the corresponding first touch plate, so that a circuit can be flexibly controlled according to actual use requirements, and the applicability and the flexibility are improved.

Description

Technical Field

[0001] The present application relates to the technical field of relays, and in particular to a contact device and an electromagnetic relay. Background Art

[0002] In modern electronic control systems, electromagnetic relays are an important switching element and are widely used in the automatic control and protection of various circuits. Traditional electromagnetic relays usually adopt a fixed contact design, which means that once manufactured, the circuit connection method is determined and cannot be adjusted according to actual application requirements. This design limits the flexibility and applicability of relays, especially in scenarios where circuit reconfiguration is required according to different control logic or conditions.

[0003] Therefore, the present invention provides a contact device and an electromagnetic relay. Summary of the invention

[0004] The purpose of this application is to solve the problems in the above-mentioned background technology. This application provides a contact device and an electromagnetic relay.

[0005] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0006] A contact device, comprising:

[0007] A mounting box, wherein two adjacent sides of the mounting box are open, a mounting plate for covering the open opening is installed in the mounting box, a plurality of first touch panels and a second touch panel are installed in the mounting box, one end of the first touch panel and the second touch panel is a connecting end, and the other end is a touching end, the connecting end is located outside the mounting box, and the touching end is located inside the mounting box, the touching end of the second touch panel is used to contact the touching end of the first touch panel, and a gap is left between the touching end of the second touch panel and the first touch panel under normal conditions;

[0008] The driving mechanism comprises a moving frame horizontally slidably mounted in the mounting box, a magnetic block mounted on the moving frame, a plurality of telescopic parts mounted on the moving frame, an adjusting part acting on the plurality of telescopic parts mounted on the moving frame, the number of the telescopic parts, the first touch plate and the second touch plate being the same, and the adjusting part is used to drive at least one telescopic part to contact the second touch plate;

[0009] The reset mechanism is that a connecting sleeve is horizontally installed on the installation box, a connecting rod is slidably inserted at one end of the connecting sleeve, one end of the connecting rod is connected to the moving frame, and a return spring is installed between the connecting rod and the connecting sleeve.

[0010] Furthermore, the telescopic part includes a plurality of mounting tubes mounted in an arc-shaped array on the movable frame, a resistance rod slidingly passing through one end of the mounting tube, a baffle plate is constructed on one side of the resistance rod located inside the mounting tube, a return spring is installed between the baffle plate and the mounting tube, the adjustment part acts on the plurality of resistance rods, and is used to control the extension of the resistance rods, and in normal state, one end of the resistance rod facing the second touch plate is located inside the mounting tube.

[0011] Furthermore, the adjustment part includes a rotating rod rotatably mounted on the movable frame, one end of the rotating rod is configured with a connecting tube, a plurality of mounting rods are installed in a circular array on the outer peripheral side of the connecting tube, the free end of the mounting rod is configured with an arc plate, the arc plate is configured with a forcing protrusion on the side facing the mounting tube, the forcing protrusion is trapezoidal, the number and distribution position of the forcing protrusions on each arc plate are different, the forcing protrusion is used to contact with the end of the resistance rod facing the arc plate, and an adjusting member for driving the connecting tube to rotate is installed on the mounting box.

[0012] Furthermore, a slot is provided on the installation box, and the adjusting member includes a spring telescopic rod installed inside the installation box, the telescopic end of the spring telescopic rod is vertically structured with a convex rod, the top of the convex rod passes through the slot and is installed with a sliding plate that blocks the slot, and the bottom end of the convex rod is installed with a forcing member that acts on the connecting tube, and when the sliding plate reciprocates a stroke, the connecting tube is driven to rotate in a fixed angle through the forcing member.

[0013] Furthermore, the forcing member includes a rod body vertically constructed at the bottom end of the protruding rod, a toggle rod is rotatably mounted on the rod body, a torsion spring is mounted on the protruding rod, one end of the torsion spring is connected to the protruding rod, and the other end is connected to the toggle rod, a baffle is installed on the rod body, and the torsion spring forces the toggle rod to contact the baffle, a plurality of forcing plates are constructed on the outer peripheral side of the connecting tube, which are used to contact the toggle rod, and the number of forcing plates is consistent with the number of arc plates, and a one-way component acting on the connecting tube is installed on the movable frame.

[0014] Furthermore, the one-way component includes a cylinder horizontally constructed on the movable frame, one end of the cylinder is horizontally slidably inserted with a wedge plate, an interference spring is installed between the wedge plate and the cylinder, and a wedge groove for inserting the wedge plate is opened on the outer peripheral side of the connecting cylinder.

[0015] Furthermore, a plurality of mounting grooves are provided on the outer circumference of the connecting tube, a convex plate is horizontally configured on the mounting rod, a mounting protrusion is configured on the convex plate for inserting into the mounting groove, and a locking piece for limiting the mounting protrusion is installed on the connecting tube.

[0016] Furthermore, the locking member includes a sliding rod horizontally slidably inserted into one end of the connecting tube, a connecting spring is installed between the sliding rod and the inside of the connecting tube, one end of the sliding rod is located outside and is configured with a pull plate, a plurality of plug-in plates are configured in a circular array on an end surface of the pull plate facing the connecting tube, a plug-in groove is opened on one side of the mounting protrusion, and the plug-in plate passes through the connecting tube and is inserted into the plug-in groove.

[0017] Furthermore, an observation window is provided on the installation box.

[0018] An electromagnetic relay comprises the above-mentioned contact device and also comprises a connection box connected to the installation box, wherein an electromagnetic ring is installed in the connection box, a coil is sleeved on the outside of the electromagnetic ring, and both ends of the coil pass through the connection box and are located outside. When the coil is energized, the magnetic attraction block moves toward the direction of the electromagnetic ring.

[0019] The beneficial effects of this application are as follows:

[0020] The present application controls the corresponding extension of several telescopic parts through the adjustment part. After the telescopic parts are extended, they will touch the second touch plates in the corresponding directions, so that the second touch plates in contact with the telescopic parts are closer to the first touch plates than the other second touch plates. In this way, when the mobile frame moves due to power-on, after the mobile frame moves to the maximum limit position, the second touch plates in contact with the telescopic parts will contact the corresponding first touch plates, so that the circuit can be flexibly controlled according to the actual use needs, thereby improving the applicability and flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of this application;

[0022] Figure 2 This application Figure 1 Partial stereoscopic cutaway view;

[0023] Figure 3 This application Figure 1 Another partial three-dimensional cutaway view;

[0024] Figure 4 It is a schematic diagram of the structure of part of this application;

[0025] Figure 5 It is another structural diagram of this application;

[0026] Figure 6 It is a schematic diagram of another part of the structure of this application;

[0027] Figure 7 It is an exploded view of some structures of this application;

[0028] Figure 8This is another exploded view of the structure of this application;

[0029] Figure numerals: 1, mounting box; 2, mounting plate; 3, first touch plate; 4, second touch plate; 5, driving mechanism; 501, moving frame; 502, telescopic part; 5021, mounting cylinder; 5022, abutting rod; 5023, baffle; 5024, return spring; 503, adjusting part; 5031, rotating rod; 5032, connecting cylinder; 5033, mounting rod; 5034, arc plate; 5035, forcing convex block; 6, adjusting member; 601, slot; 602, spring telescopic rod; 603, convex rod; 604, sliding plate; 7, forcing member; 701, rod body; 702, toggle Rod; 703, torsion spring; 704, baffle; 705, forcing plate; 8, one-way component; 801, cylinder; 802, wedge plate; 803, wedge groove; 804, resisting spring; 9, reset mechanism; 901, connecting sleeve; 902, connecting rod; 903, return spring; 10, mounting protrusion; 11, locking piece; 1101, sliding rod; 1102, connecting spring; 1103, pull plate; 1104, plug-in board; 1105, plug-in slot; 12, observation window; 13, connecting box; 14, electromagnetic ring; 15, coil; 16, convex plate; 17, magnetic suction block; 18, mounting slot. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] like Figure 1-Figure 8 As shown, a contact device proposed in one embodiment of the present application includes:

[0032] An installation box 1, wherein two adjacent sides of the installation box 1 are open, a mounting plate 2 for covering the open is installed in the installation box 1, a plurality of first touch panels 3 and second touch panels 4 are installed in the installation box 1, one end of the first touch panel 3 and the second touch panel 4 is a connecting end, and the other end is a touching end, the connecting end is located outside the installation box 1, and the touching end is located inside the installation box 1, the touching end of the second touch panel 4 is used to contact with the touching end of the first touch panel 3, and a gap is left between the touching end of the second touch panel 4 and the first touch panel 3 under normal conditions;

[0033] The driving mechanism 5 includes a moving frame 501 horizontally slidably mounted in the mounting box 1, a magnetic block 17 is mounted on the moving frame 501, a plurality of telescopic parts 502 are mounted on the moving frame 501, an adjusting part 503 acting on the plurality of telescopic parts 502 is mounted on the moving frame 501, the number of the telescopic parts 502, the first touch plate 3 and the second touch plate 4 are the same, and the adjusting part 503 is used to drive at least one telescopic part 502 to contact the second touch plate 4;

[0034] The reset mechanism 9 is a horizontal installation of a connecting sleeve 901 on the installation box 1, and a connecting rod 902 is slidably inserted at one end of the connecting sleeve 901, and one end of the connecting rod 902 is connected to the movable frame 501. A return spring 903 is installed between the connecting rod 902 and the connecting sleeve 901. That is to say, under normal conditions, the second touch plate 4 will not contact the first touch plate 3. The staff can control the corresponding several telescopic parts 502 to extend through the adjustment part 503 according to the needs of use. After the telescopic part 502 is extended, it will touch the second touch plate 4 in the corresponding direction, so that the second touch plate 4 in contact with the telescopic part 502 is closer to the first touch plate 3 than the other second touch plates 4. In this way, when the movable frame 501 moves due to power-on, the movable frame 501 moves to the maximum limit position. At this time, the second touch plate 4 in contact with the telescopic part 502 will contact the corresponding first touch plate 3, thereby realizing a flexible control circuit according to the needs of actual use, thereby improving applicability and flexibility.

[0035] like Figure 2 As shown, in some embodiments, the telescopic portion 502 includes a plurality of mounting tubes 5021 mounted in an arc-shaped array on the mobile frame 501, and a resistance rod 5022 is slidably penetrated at one end of the mounting tube 5021, and a baffle 5023 is constructed on one side of the resistance rod 5022 located inside the mounting tube 5021, and a return spring 5024 is installed between the baffle 5023 and the mounting tube 5021, and the adjustment portion 503 acts on the plurality of resistance rods 5022, which is used to control the extension of the resistance rods 5022. In normal state, one end of the resistance rod 5022 facing the second touch plate 4 is located in the mounting tube 5021, that is, the adjustment portion 503 can control the extension of one or more resistance rods 5022 as needed. Specifically, the resistance rod 5022 is an insulating material. When the first touch plate 3 contacts the second touch plate 4, current will pass through the first touch plate 3 and the second touch plate 4.

[0036] like Figure 2-Figure 6As shown, in some embodiments, the adjusting part 503 includes a rotating rod 5031 rotatably mounted on the mobile frame 501, one end of the rotating rod 5031 is configured with a connecting cylinder 5032, a plurality of mounting rods 5033 are installed in a circular array on the outer peripheral side of the connecting cylinder 5032, and a free end of the mounting rod 5033 is configured with an arc plate 5034, and a side of the arc plate 5034 facing the mounting cylinder 5021 is configured with a forcing protrusion 5035, and the forcing protrusion 5035 is trapezoidal, and each arc plate 503 4, the number and distribution positions of the forcing protrusions 5035 are different, and the forcing protrusions 5035 are used to contact the end of the resistance rod 5022 facing the arc plate 5034. The mounting box 1 is equipped with an adjusting member 6 for driving the connecting cylinder 5032 to rotate. That is, the connecting cylinder 5032 is driven to rotate by the adjusting member 6. When the connecting cylinder 5032 rotates, it drives the multiple mounting rods 5033 installed on the connecting cylinder 5032 to rotate, thereby realizing the movement of the multiple arc plates 5034. Figure 8 As shown, because the forcing protrusion 5035 is trapezoidal, when the arc plate 5034 rotates, the contact rod 5022 will extend due to the contact with the inclined surface of the forcing protrusion 5035, so that one end of the contact rod 5022 pushes the elastic deformation of the second touch plate 4 to offset. At this time, the return spring 5024 is in a compressed state. Because the number and spacing of the forcing protrusions 5035 on each arc plate 5034 are different, it is only necessary to control the rotation of the connecting tube 5032 according to the actual circuit conditions and usage requirements, which is convenient to use.

[0037] like Figure 2As shown, in some embodiments, a slot 601 is provided on the installation box 1, and the adjusting member 6 includes a spring telescopic rod 602 installed inside the installation box 1, and the telescopic end of the spring telescopic rod 602 is vertically structured with a protruding rod 603, and the top of the protruding rod 603 passes through the slot 601 and is installed with a sliding plate 604 that blocks the slot 601, and the bottom of the protruding rod 603 is installed with a forcing member 7 that acts on the connecting cylinder 5032. When the sliding plate 604 reciprocates a stroke, the connecting cylinder 5032 is driven by the forcing member 7 to rotate in a directional manner and a fixed angle. That is to say, when the staff needs to rotate the connecting cylinder 5032, they only need to push the sliding plate 604. When the sliding plate 604 moves to the maximum limit position, the spring 603 is pressed against the connecting cylinder 5032. The spring inside the spring telescopic rod 602 is in a stretched state. At this time, when the staff releases the sliding plate 604, the spring inside the spring telescopic rod 602 will reset due to its own elastic deformation. At this time, the cooperating forcing member 7 will cause the connecting tube 5032 to rotate, thereby replacing the forcing protrusion 5035 on other arc plates 5034 to push the resistance rod 5022 to move. Because the arc plates 5034 are distributed in a circular array, the fixed rotation angle of the connecting tube 5032 here is determined according to the actual number of arc plates 5034. The fixed rotation angle of the connecting tube 5032 is equal to the total number of three hundred and sixty arc plates 5034, which effectively prevents the angle of the connecting tube 5032 from being offset when it rotates.

[0038] like Figure 2 and Figure 5 As shown, in some embodiments, the forcing member 7 includes a rod body 701 vertically constructed at the bottom end of the protruding rod 603, a toggle rod 702 is rotatably mounted on the rod body 701, a torsion spring 703 is mounted on the protruding rod 603, one end of the torsion spring 703 is connected to the protruding rod 603, and the other end is connected to the toggle rod 702, a blocking piece 704 is installed on the rod body 701, and the torsion spring 703 forces the toggle rod 702 to contact the blocking piece 704, as shown in FIG. Figure 2 and Figure 7As shown, the design of the blocking piece 704 is such that under normal conditions, the toggle rod 702 and the connecting tube 5032 are in a parallel state through the elastic force of the torsion spring 703. The outer peripheral side of the connecting tube 5032 is constructed with a plurality of forcing plates 705, which are used to contact the toggle rod 702. The number of forcing plates 705 is consistent with the number of arc plates 5034. A one-way component 8 acting on the connecting tube 5032 is installed on the moving frame 501. The one-way component 8 allows the connecting tube 5032 to rotate in only one direction. In this way, when the sliding plate 604 moves, the toggle rod 702 contacts the forcing plate 705. Because the blocking piece 704 is limited and matched with the one-way component 8 at this time, the toggle rod 702 will not rotate at this time, but pushes the forcing plate 705 to rotate, and as the forcing plate 705 rotates around the connecting tube 5032 is rotated in the axial direction, and the sliding plate 604 continues to slide so that the sliding plate 604 moves to the maximum limit position. At this time, the toggle rod 702 will gradually separate from the forcing plate 705. When the sliding plate 604 moves to reset, the adjacent forcing plate 705 will contact the toggle rod 702 when the toggle rod 702 is reset. Because the connecting tube 5032 is unidirectionally rotating, the toggle rod 702 at this time is in hard contact with the forcing plate 705 when resetting. Therefore, the toggle rod 702 will rotate at this time, and the torsion spring 703 will twist until the toggle rod 702 is separated from the forcing plate 705. Then, the toggle spring 703 will reset the toggle rod 702 and contact the baffle 704 due to its own elastic deformation. When it is used specifically, it only needs to push the sliding plate 604, which is convenient to use.

[0039] like Figure 3 and Figure 8 As shown, in some embodiments, the one-way component 8 includes a cylinder 801 horizontally constructed on the mobile frame 501, one end of the cylinder 801 is horizontally slidably inserted with a wedge plate 802, a resisting spring 804 is installed between the wedge plate 802 and the cylinder 801, and a wedge groove 803 for inserting the wedge plate 802 is opened on the outer peripheral side of the connecting cylinder 5032. That is to say, when the connecting cylinder 5032 is as shown in FIG. Figure 3 When rotating clockwise, the inclined surface of the wedge groove 803 contacts the inclined surface of the wedge plate 802, thereby forcing the wedge groove 803 to move into the connecting tube 5032. After the arc plate 5034 rotates to the corresponding position, the wedge plate 802 is inserted into the wedge groove 803. In this way, when the connecting tube 5032 has a tendency to rotate counterclockwise, the plane of the wedge plate 802 will contact the plane of the wedge groove 803, thereby limiting the rotation of the connecting tube 5032.

[0040] like Figure 8As shown, in some embodiments, a plurality of mounting grooves 18 are provided on the outer peripheral side of the connecting tube 5032, a convex plate 16 is horizontally constructed on the mounting rod 5033, and a mounting protrusion 10 is constructed on the convex plate 16 for being inserted into the mounting groove 18, and a locking member 11 for limiting the mounting protrusion 10 is installed on the connecting tube 5032. That is to say, the arc plate 5034 is removable and can be flexibly replaced according to actual conditions, thereby further improving the applicability. After the mounting protrusion 10 is inserted into the mounting groove 18, the mounting protrusion 10 can be fixed in the mounting groove 18 by the locking member 11.

[0041] like Figure 8 As shown, in some embodiments, the locking member 11 includes a sliding rod 1101 horizontally slidably inserted at one end of the connecting cylinder 5032, a connecting spring 1102 is installed between the sliding rod 1101 and the inside of the connecting cylinder 5032, one end of the sliding rod 1101 is located outside and is configured with a pull plate 1103, and a plurality of plug-in boards 1104 are configured in a circular array on an end surface of the pull plate 1103 facing the connecting cylinder 5032, a plug-in groove 1105 is opened on one side of the mounting protrusion 10, and the plug-in board 1104 passes through the connecting cylinder 5032 and is inserted into the plug-in groove 1105. Specifically, the mounting protrusion 10 is tightly inserted into It is arranged in the installation groove 18. When the installation protrusion 10 is inserted into the installation groove 18, it will not fall out of the installation groove 18 due to the effect of gravity. When one or more of the arc plates 5034 need to be removed, the pull plate 1103 can be pulled at this time. The movement of the pull plate 1103 drives the plug-in board 1104 to move, so that the plug-in board 1104 is disengaged from the plug-in groove 1105, and then the corresponding installation protrusion 10 can be pulled out of the installation groove 18. The design of the connecting spring 1102 effectively prevents the installation pull plate 1103 from moving by itself when the relay is subjected to a certain impact, thereby playing a protective role.

[0042] like Figure 4 As shown, in some embodiments, an observation window 12 is provided on the installation box 1 , and the observation window 12 may be made of transparent plastic, so that the staff can know the contact status of the first touch panel 3 and the second touch panel 4 more intuitively.

[0043] like Figure 1-Figure 8As shown, an electromagnetic relay includes the above-mentioned contact device and also includes a connecting box 13 connected to the installation box 1, an electromagnetic ring 14 is installed in the connecting box 13, the electromagnetic ring 14 is an electromagnet inside the existing relay, a coil 15 is sleeved on the outside of the electromagnetic ring 14, both ends of the coil 15 pass through the connecting box 13 and are located outside, when the coil 15 is energized, the magnetic block 17 moves toward the electromagnetic ring 14, and the two ends of the coil 15 are connected to the external circuit, when current passes through the coil 15, the electromagnetic ring 14 will generate magnetic force to attract the magnetic block 17 to approach, and the magnetic block 17 will drive the moving frame 501 to move when moving, thereby making the second touch plate 4 move in the direction of the first touch plate 3, so that the second touch plate 4 in contact with the resistance rod 5022 is in contact with the first touch plate 3 in the corresponding direction.

[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A contact device, characterized in that: include: An installation box (1), wherein two adjacent sides of the installation box (1) are open, a mounting plate (2) for covering the open is installed in the installation box (1), a plurality of first touch panels (3) and second touch panels (4) are installed in the installation box (1), one end of the first touch panel (3) and the second touch panel (4) is a connecting end, and the other end is a touching end, the connecting end is located outside the installation box (1), and the touching end is located inside the installation box (1), the touching end of the second touch panel (4) is used to contact the touching end of the first touch panel (3), and a gap is left between the touching end of the second touch panel (4) and the first touch panel (3) under normal conditions; The driving mechanism (5) comprises a moving frame (501) horizontally slidably mounted in the mounting box (1), a magnetic attraction block (17) being mounted on the moving frame (501), a plurality of telescopic parts (502) being mounted on the moving frame (501), an adjusting part (503) acting on the plurality of telescopic parts (502) being mounted on the moving frame (501), the number of the telescopic parts (502), the first touch plate (3) and the second touch plate (4) being the same, and the adjusting part (503) being used to drive at least one telescopic part (502) to contact the second touch plate (4); A reset mechanism (9), wherein a connecting sleeve (901) is horizontally mounted on the mounting box (1), a connecting rod (902) is slidably inserted into one end of the connecting sleeve (901), one end of the connecting rod (902) is connected to the movable frame (501), and a return spring (903) is mounted between the connecting rod (902) and the connecting sleeve (901).

2. A contact device according to claim 1, characterized in that: The telescopic portion (502) comprises a plurality of mounting tubes (5021) mounted in an arc-shaped array on the movable frame (501); a resistance rod (5022) is slidably penetrated through one end of the mounting tube (5021); a baffle (5023) is configured on one side of the resistance rod (5022) located inside the mounting tube (5021); a return spring (5024) is installed between the baffle (5023) and the mounting tube (5021); the adjustment portion (503) acts on the plurality of resistance rods (5022) and is used to control the extension of the resistance rods (5022); in a normal state, one end of the resistance rod (5022) facing the second touch plate (4) is located inside the mounting tube (5021).

3. A contact device according to claim 2, characterized in that: The adjusting portion (503) comprises a rotating rod (5031) rotatably mounted on the movable frame (501); one end of the rotating rod (5031) is configured with a connecting tube (5032); a plurality of mounting rods (5033) are mounted in a circular array on the outer peripheral side of the connecting tube (5032); a free end of the mounting rod (5033) is configured with an arc plate (5034); a side of the arc plate (5034) facing the mounting tube (5021) is configured with a forcing protrusion (5035); the forcing protrusion (5035) is trapezoidal; the number and distribution position of the forcing protrusion (5035) on each arc plate (5034) are different; the forcing protrusion (5035) is used to contact the end of the abutting rod (5022) facing the arc plate (5034); and an adjusting member (6) for driving the connecting tube (5032) to rotate is mounted on the mounting box (1).

4. A contact device according to claim 3, characterized in that: The installation box (1) is provided with a slot (601), and the adjustment member (6) comprises a spring telescopic rod (602) installed inside the installation box (1), and the telescopic end of the spring telescopic rod (602) is vertically structured with a protruding rod (603), the top end of the protruding rod (603) passes through the slot (601) and is provided with a sliding plate (604) that blocks the slot (601), and the bottom end of the protruding rod (603) is provided with a forcing member (7) that acts on the connecting tube (5032), and when the sliding plate (604) reciprocates a stroke, the connecting tube (5032) is driven by the forcing member (7) to rotate in a directional manner at a fixed angle.

5. A contact device according to claim 4, characterized in that: The forcing member (7) comprises a rod body (701) vertically constructed at the bottom end of the protruding rod (603); a toggle rod (702) is rotatably mounted on the rod body (701); a torsion spring (703) is mounted on the protruding rod (603); one end of the torsion spring (703) is connected to the protruding rod (603), and the other end is connected to the toggle rod (702); a baffle (704) is mounted on the rod body (701); the torsion spring (703) forces the toggle rod (702) to contact the baffle (704); a plurality of forcing plates (705) are constructed on the outer peripheral side of the connecting tube (5032) for contacting the toggle rod (702); the number of the forcing plates (705) is consistent with the number of the arc-shaped plates (5034); and a one-way component (8) acting on the connecting tube (5032) is mounted on the moving frame (501).

6. A contact device according to claim 5, characterized in that: The one-way component (8) comprises a cylinder (801) horizontally constructed on the movable frame (501), one end of the cylinder (801) is horizontally slidably inserted with a wedge plate (802), a resisting spring piece (804) is installed between the wedge plate (802) and the cylinder (801), and the outer peripheral side of the connecting cylinder (5032) is provided with a wedge groove (803) for inserting the wedge plate (802).

7. A contact device according to claim 6, characterized in that: The outer circumferential side of the connecting tube (5032) is provided with a plurality of mounting grooves (18); the mounting rod (5033) is horizontally provided with a convex plate (16); the convex plate (16) is provided with a mounting protrusion (10) for being inserted into the mounting groove (18); and the connecting tube (5032) is provided with a locking member (11) for limiting the mounting protrusion (10).

8. A contact device according to claim 7, characterized in that: The locking member (11) comprises a sliding rod (1101) horizontally slidably inserted into one end of the connecting tube (5032), a connecting spring (1102) is installed between the sliding rod (1101) and the inside of the connecting tube (5032), one end of the sliding rod (1101) is located outside and is configured with a pull plate (1103), a plurality of plug-in plates (1104) are configured in a circular array on an end surface of the pull plate (1103) facing the connecting tube (5032), a plug-in groove (1105) is provided on one side of the mounting protrusion (10), and the plug-in plate (1104) passes through the connecting tube (5032) and is inserted into the plug-in groove (1105).

9. A contact device according to claim 1, characterized in that: The installation box (1) is provided with an observation window (12).

10. An electromagnetic relay, comprising a contact device according to any one of claims 1 to 9, characterized in that: It also comprises a connection box (13) connected to the installation box (1), an electromagnetic ring (14) is installed in the connection box (13), a coil (15) is sleeved on the outside of the electromagnetic ring (14), two ends of the coil (15) pass through the connection box (13) and are located outside, and when the coil (15) is energized, the magnetic attraction block (17) moves in the direction of the electromagnetic ring (14).

Images