Anti-falling arc extinguishing relay

Abstract

The utility model discloses an anti-drop arc extinguishing relay, which comprises a relay main body, two sides of the relay main body are fixedly connected with connecting plates, the top of each connecting plate is inserted with a threaded sleeve, the top of each threaded sleeve is provided with an installation cavity in a penetrating manner, an insertion rod is installed in the installation cavity in a threaded manner, and the insertion rod is inserted into the threaded sleeve. The top of the surface of the insertion rod is fixedly connected with two clamping blocks which are oppositely arranged, the top of the surface of the threaded sleeve is fixedly connected with two pressing blocks which are oppositely arranged, and a movable cavity is formed in the top of an inner cavity of the installation cavity. The clamping structure is used for tightly clamping a connecting part on the relay and a connecting part on the support together in a buckling mode, then a bolt is used for further retracting and fixing, double fixing is carried out on installation of the relay, and therefore the relay is prevented from loosening and falling off, and convenience is provided for work and use of a user.

Description

Technical Field

[0001] This utility model relates to the field of relay technology, and in particular to an anti-drop arc-extinguishing relay. Background Technology

[0002] An arc-extinguishing relay is an electromagnetic relay that meets arc-extinguishing requirements through special design based on relay products. Traditional arc-extinguishing relays are simply fixed to the bracket by bolts in series. However, in actual use, the bolts on the relay may loosen or even fall off due to the vibration of the machine equipment, causing the relay to fall off and easily damage it, making it difficult for the relay to work properly and affecting the normal operation of the equipment.

[0003] To address the aforementioned problems, this utility model provides improvements. Summary of the Invention

[0004] This invention proposes an anti-fall arc-extinguishing relay, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows: An anti-fall arc-extinguishing relay includes a relay body, with connecting plates fixedly connected to both sides of the relay body. A threaded sleeve is inserted into the top of the connecting plate, and an installation cavity is provided through the top of the threaded sleeve. A plug rod is threadedly installed inside the installation cavity. Two opposing locking blocks are fixedly connected to the top of the surface of the plug rod, and two opposing pressure blocks are fixedly connected to the top of the surface of the threaded sleeve. A movable cavity is opened at the top of the inner cavity of the installation cavity, and openings adapted to the locking blocks are opened on both sides of the top of the movable cavity. A hexagonal block is fixedly connected to the top of the plug rod.

[0006] The present invention further comprises the following: a sliding cavity is provided on both sides of the inner cavity of the movable cavity, and a locking pin is slidably installed in the inner cavity of the sliding cavity; and a locking hole adapted to the locking pin is provided at the end of the locking block facing the locking pin.

[0007] The present invention provides a further embodiment of the anti-fall arc-extinguishing relay as described above: one end of the locking pin is fixedly connected to a spring, and the end of the spring away from the locking pin is fixedly connected to the inner wall of the sliding cavity.

[0008] The present invention further comprises the following: a pre-installed plate located below the connecting plate is fitted on the surface of the threaded sleeve; a locking nut located below the pre-installed plate is threadedly installed on the surface of the threaded sleeve; and two opposing top blocks are fixedly connected to the top of the surface of the insertion rod, with both top blocks pressed against the connecting plate.

[0009] The present invention, as described above, is used for an anti-fall arc-extinguishing relay. Further, two pressure blocks are embedded in the bottom of the pre-installed plate, and the top of the connecting plate is provided with an elongated hole adapted to the threaded sleeve and the insertion rod. On both sides of the inner cavity of the elongated hole, there are slots adapted to the pressure blocks.

[0010] The present invention further comprises the following: the top of the pre-installed plate is provided with an elongated hole II that is adapted to the threaded sleeve and the insertion rod, and both sides of the inner cavity of the elongated hole II are provided with slots II that are adapted to the pressure block.

[0011] The present invention further comprises the following: both ends of the bottom side of the connecting plate are fixedly connected with positioning pins, and both sides of the bottom of the pre-assembly plate are provided with positioning holes that are adapted to the positioning pins.

[0012] In summary, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model adopts a structural design that adds a snap-fit ​​clamping component. This clamping structure tightly snaps the connection part on the relay together with the connection part on the bracket. Then, bolts are used for further retraction and fixation, providing double fixation for the installation of the relay, thereby preventing the relay from loosening and falling off, and providing convenience for users' work and use.

[0014] 2. This utility model, through the design of a sliding cavity, a locking pin, a spring, and a locking hole, ensures that after the relay is installed, the locking pin is engaged in the locking hole, preventing the insertion rod from moving freely. When the user rotates the insertion rod after it passes through the opening into the movable cavity, the locking block also rotates 90 degrees. During this process, the locking block first presses the locking pin into the sliding cavity while simultaneously compressing the spring. Once the locking hole and locking pin are aligned, the spring forces the locking pin out of the sliding cavity and into the locking hole, thus positioning the insertion rod.

[0015] 3. This utility model, through the setting of locking nuts, top blocks, and pre-installation plates, allows the top blocks to press against the connecting plate or the pre-installation plate during installation. This, in conjunction with the pressure blocks, clamps the connecting plate and the pressure blocks together, preventing the relay from loosening and falling off. The pre-installation plate is used to adapt to the bracket on the equipment. It can be welded or bolted to the equipment according to actual working needs before installing the relay. This makes the relay installation more flexible and convenient.

[0016] 4. This utility model features an elongated hole, a slot, an elongated hole, and a slot. Both slots are used to engage the pressure block. Users can choose whether to engage the pressure block in slot one or slot two according to their actual needs, facilitating installation. The elongated holes are used to insert threaded sleeves and insert rods. Thus, the bolt consisting of the threaded sleeve, insert rod, and locking nut can mount the relay on the device's bracket.

[0017] 5. By using positioning holes and positioning pins, this utility model allows the connecting plate to be attached to the pre-installed plate from above during installation. At the same time, the two positioning pins are also inserted into the corresponding positioning holes. This enables the positioning of the connecting plate and the pre-installed plate during installation, ensuring that the connecting plate and the pre-installed plate will not move freely during installation, thus providing convenience for users' installation work. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a three-dimensional structural diagram of a threaded sleeve;

[0021] Figure 3 This is a three-dimensional structural diagram of the insertion rod;

[0022] Figure 4 This is a partial three-dimensional cross-sectional view of the present invention;

[0023] Figure 5 This is a bottom view of a partial three-dimensional structure of the present invention.

[0024] In the diagram: 1. Relay body, 2. Connecting plate, 3. Threaded sleeve, 4. Mounting cavity, 5. Insert rod, 6. Locking block, 7. Pressing block, 8. Movable cavity, 9. Opening, 10. Sliding cavity, 11. Locking pin, 12. Spring, 13. Locking hole, 14. Locking nut, 15. Top block, 16. Hexagonal block, 17. Pre-installation plate, 18. Oblong hole one, 19. Locking groove one, 20. Oblong hole two, 21. Locking groove two, 22. Positioning hole, 23. Positioning pin. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0026] An anti-fall arc-extinguishing relay includes a relay body 1. Connecting plates 2 are fixedly connected to both sides of the relay body 1. A threaded sleeve 3 is inserted into the top of the connecting plate 2. A mounting cavity 4 is provided through the top of the threaded sleeve 3. A plug rod 5 is threadedly installed inside the mounting cavity 4. Two opposing locking blocks 6 are fixedly connected to the top of the surface of the plug rod 5. Two opposing pressure blocks 7 are fixedly connected to the top of the surface of the threaded sleeve 3. A movable cavity 8 is opened at the top of the inner cavity of the mounting cavity 4. Openings 9 that are adapted to the locking blocks 6 are opened on both sides of the top of the movable cavity 8. A hexagonal block 16 is fixedly connected to the top of the plug rod 5.

[0027] The specific usage process is as follows: According to the actual installation requirements, the user first fixes the pre-installed plate 17 to the equipment, then aligns the two connecting plates 2 on the relay body 1 onto the two pre-installed plates 17 respectively, and then aligns the threaded sleeve 3 with the two pressure blocks 7 from the bottom of the pre-installed plate 17 with the two slots 21 on the pre-installed plate 17 and inserts it. In this way, the threaded sleeve 3 with the two pressure blocks 7 is locked onto the pre-installed plate 17. Then, the insertion rod 5 passes through the elongated hole 18 on the connecting plate 2, passes through the elongated hole 20 on the pre-installed plate 17, and is inserted into the threaded sleeve 3. At the same time, the locking block 6 will also pass through the corresponding opening 9 and be locked into the movable cavity 8. At this time, the two top blocks 15 will also press on the connecting plate 2. The user then rotates the plug rod 5 90 degrees. The plug rod 5 will cause the two locking blocks 6 to rotate within the movable cavity 8. During this process, the locking blocks 6 will first press the locking pin 11 into the sliding cavity 10, simultaneously compressing the spring 12. Once the locking hole 13 aligns with the locking pin 11, the spring 12 will cause the locking pin 11 to pop out of the sliding cavity 10 and engage with the locking hole 13, thus positioning the plug rod 5. This prevents the plug rod 5 from moving freely. Then, the locking nut 14 is installed from the bottom of the threaded sleeve 3 and tightened. This completes the relay installation. It should be noted that the hexagonal block 16 and the plug rod 5 are integrally formed and connected. Inserting the plug rod 5 can be achieved by rotating the hexagonal block 16, or by using... The hexagonal block 16 is rotated using an auxiliary tool. Additionally, the connection between the insertion rod 5 and the threaded sleeve 3 can also be achieved using a threaded connection, depending on actual usage requirements. During installation, the top block 15 is used to press against the connecting plate 2 or the pre-installed plate 17, thus engaging with the pressure block 7 to clamp the connecting plate 2 and the pressure block 7 together, preventing the relay from loosening and falling off. The pre-installed plate 17 is used for adaptability to the bracket on the equipment. It can be welded or bolted to the equipment according to actual working requirements before installing the relay. This makes relay installation more flexible and convenient. Both slot 19 and slot 21 are used to engage the pressure block 7. Users can choose whether to snap the pressure block 7 into slot 19 or slot 21 according to their actual needs, which facilitates the installation work. The oblong holes 18 and 20 are used to insert the threaded sleeve 3 and the plug rod 5. The bolt composed of the threaded sleeve 3, the plug rod 5 and the locking nut 14 can install the relay on the equipment bracket. During installation, the connecting plate 2 is attached to the pre-installed plate 17 from above, and the two positioning pins 23 are also inserted into the corresponding positioning holes 22. This can realize the positioning of the connecting plate 2 and the pre-installed plate 17 during installation, ensuring that the connecting plate 2 and the pre-installed plate 17 will not move around during installation, which facilitates the installation work for users.

[0028] Therefore, a structural design with added snap-fit ​​clamping components is adopted. This clamping structure tightly snaps together the connection parts on the relay and the connection parts on the bracket. Then, bolts are used for further retraction and fixation, providing double fixation for the relay installation, thereby preventing the relay from loosening and falling off, and providing convenience for users' work and use.

[0029] Sliding cavities 10 are provided on both sides of the inner cavity of the movable cavity 8. A locking pin 11 is slidably installed in the inner cavity of the sliding cavity 10. A locking hole 13 adapted to the locking pin 11 is provided at the end of the locking block 6 facing the locking pin 11. A spring 12 is fixedly connected to one end of the locking pin 11. The end of the spring 12 away from the locking pin 11 is fixedly connected to the inner wall of the sliding cavity 10.

[0030] Specifically, the sliding cavity 10, locking pin 11, spring 12, and locking hole 13 are configured such that after the relay is installed, the locking pin 11 is inserted into the locking hole 13, so the insertion rod 5 will not move freely. The locking block 6 follows the insertion rod 5 through the opening 9 into the movable cavity 8. When the user rotates the insertion rod 5, the locking block 6 also rotates 90 degrees with the insertion rod 5. During this process, the locking block 6 will first squeeze the locking pin 11 into the sliding cavity 10, and at the same time compress the spring 12, until the locking hole 13 and the locking pin 11 are aligned. Then, under the action of the spring 12, the locking pin 11 is ejected from the inner cavity of the sliding cavity 10 and locked into the locking hole 13, thus achieving the positioning of the insertion rod 5.

[0031] The surface of the threaded sleeve 3 is fitted with a pre-installed plate 17 located below the connecting plate 2, and the surface of the threaded sleeve 3 is threaded with a locking nut 14 located below the pre-installed plate 17. The top of the surface of the insertion rod 5 is fixedly connected with two opposing top blocks 15, and both top blocks 15 are pressed against the connecting plate 2.

[0032] Specifically, the locking nut 14, top block 15, and pre-installed plate 17 are designed so that during installation, the top block 15 is used to press against the connecting plate 2 or the pre-installed plate 17, thereby cooperating with the pressure block 7 to clamp the connecting plate 2 and the pressure block 7 together, preventing the relay from loosening and falling off. The pre-installed plate 17 is used to adapt to the bracket on the equipment. The pre-installed plate 17 can be welded or bolted to the equipment according to the actual working requirements before installing the relay. This makes the installation of the relay more flexible and convenient.

[0033] Both pressure blocks 7 are embedded in the bottom of the pre-assembly plate 17. The top of the connecting plate 2 is provided with an elongated hole 18 that is adapted to the threaded sleeve 3 and the insertion rod 5. Both sides of the inner cavity of the elongated hole 18 are provided with slots 19 that are adapted to the pressure blocks 7. The top of the pre-assembly plate 17 is provided with an elongated hole 20 that is adapted to the threaded sleeve 3 and the insertion rod 5. Both sides of the inner cavity of the elongated hole 20 are provided with slots 21 that are adapted to the pressure blocks 7.

[0034] Specifically, the oblong hole 18, slot 19, oblong hole 20, and slot 21 are designed to engage the pressure block 7. Slots 19 and 21 are used to engage the pressure block 7. Users can choose whether to engage the pressure block 7 in slot 19 or slot 21 according to their actual needs, which facilitates the installation work. Oblong holes 18 and 20 are used to insert the threaded sleeve 3 and the insertion rod 5. Thus, the bolt composed of the threaded sleeve 3, the insertion rod 5, and the locking nut 14 can install the relay on the device bracket.

[0035] The bottom of the connecting plate 2 is fixedly connected to both ends of a positioning pin 23, and the bottom of the pre-installed plate 17 is provided with positioning holes 22 that are adapted to the positioning pin 23 on both sides.

[0036] Specifically, the positioning holes 22 and positioning pins 23 are designed so that during installation, the connecting plate 2 fits onto the pre-installed plate 17 from above, and the two positioning pins 23 are also inserted into the corresponding positioning holes 22. This enables the positioning of the connecting plate 2 and the pre-installed plate 17 during installation, ensuring that the connecting plate 2 and the pre-installed plate 17 will not move arbitrarily during installation, thus providing convenience for the user's installation work.

[0037] It should be noted that the functions to be achieved by each hardware component in this utility model are supported by a large number of mature technologies and belong to the prior art. The essence of this utility model is to optimize and combine existing hardware and its connection methods for specific application scenarios to meet the adaptation requirements of specific application scenarios and solve the problems raised in the background technology (without involving improvements to the internal software of the hardware).

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drop-proof arc-extinguishing relay, comprising a relay body (1), characterized in that: The relay body (1) is fixedly connected to both sides of a connecting plate (2). A threaded sleeve (3) is inserted into the top of the connecting plate (2). A mounting cavity (4) is provided through the top of the threaded sleeve (3). A plug rod (5) is installed inside the mounting cavity (4). Two opposing locking blocks (6) are fixedly connected to the top of the surface of the plug rod (5). Two opposing pressure blocks (7) are fixedly connected to the top of the surface of the threaded sleeve (3). A movable cavity (8) is opened at the top of the inner cavity of the mounting cavity (4). Openings (9) that are adapted to the locking blocks (6) are opened on both sides of the top of the movable cavity (8). A hexagonal block (16) is fixedly connected to the top of the plug rod (5).

2. The anti-drop arc-extinguishing relay according to claim 1, characterized in that: The movable cavity (8) has sliding cavities (10) on both sides of the inner cavity. The sliding cavity (10) has a locking pin (11) slidably installed in the inner cavity of the sliding cavity (11). The locking block (6) has a locking hole (13) that matches the locking pin (11) at one end facing the locking pin (11).

3. The anti-drop arc-extinguishing relay according to claim 2, characterized in that: One end of the latch (11) is fixedly connected to a spring (12), and the end of the spring (12) away from the latch (11) is fixedly connected to the inner wall of the sliding cavity (10).

4. The anti-drop arc-extinguishing relay according to claim 3, characterized in that: The surface of the threaded sleeve (3) is fitted with a pre-installed plate (17) located below the connecting plate (2), and the surface of the threaded sleeve (3) is threaded with a locking nut (14) located below the pre-installed plate (17). The top of the surface of the insert (5) is fixedly connected with two opposing top blocks (15), and both top blocks (15) are pressed against the connecting plate (2).

5. The anti-drop arc-extinguishing relay according to claim 4, characterized in that: Both pressure blocks (7) are embedded in the bottom of the pre-installed plate (17). The top of the connecting plate (2) is provided with an elongated hole (18) that is compatible with the threaded sleeve (3) and the insert rod (5). Both sides of the inner cavity of the elongated hole (18) are provided with a slot (19) that is compatible with the pressure block (7).

6. The anti-drop arc-extinguishing relay according to claim 5, characterized in that: The top of the pre-installed plate (17) is provided with an elongated hole (20) that is compatible with the threaded sleeve (3) and the insert rod (5). On both sides of the inner cavity of the elongated hole (20) are slots (21) that are compatible with the pressure block (7).

7. The anti-drop arc-extinguishing relay according to claim 6, characterized in that: The bottom of the connecting plate (2) is fixedly connected to both ends of a positioning pin (23), and the bottom of the pre-installed plate (17) is provided with positioning holes (22) that are compatible with the positioning pin (23) on both sides.

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