Push rod structure of push rod type relay

Abstract

The utility model relates to the technical field of push rod type relays, in particular to a push rod structure of a push rod type relay. A push rod structure of a push rod type relay comprises a partition plate and a push plate connected through a limiting connecting rod, the face side of the push plate extends outwards to be provided with two plug pins, the push plate is further provided with a containing groove, arc extinguishing magnetic steel is clamped in the containing groove, and bosses are arranged at the two ends of the limiting connecting rod. According to the utility model, the boss is arranged on the connecting rod of the push rod structure and is used for being matched with the movable groove in the push rod type relay, so that the movement range of the push rod structure is limited, and the connection and disconnection between the movable terminal and the static terminal are facilitated; the arc extinguishing effect is achieved on electric arcs generated when the movable terminal and the static terminal are connected through the magnetic blow-out effect, the insulation push rod is prevented from being melted, the guide groove and the guide sliding piece which are used for guiding the moving direction are further arranged on the connecting rod, and the moving process of the push rod is stably carried out.

Description

Technical Field

[0001] This utility model relates to the field of push rod relay technology, and in particular to a push rod structure for a push rod relay. Background Technology

[0002] The utility model application with application number 202023309282.3 discloses a push rod relay that reduces contact arc melting. The relay is equipped with an insulating push rod that moves under the drive of an electromagnet, thereby triggering the movement of the moving terminal and making the moving terminal connected or disconnected from the stationary contact, thus realizing the connection and disconnection of the push rod relay. However, in the structural design of this push rod relay, since there is no arc extinguishing structure, the arc generated during the connection of the moving and stationary terminals can easily cause the insulating push rod to melt at high temperature, resulting in disconnection. Utility Model Content

[0003] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the description and other accompanying drawings.

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a push rod structure for a push rod relay. By setting a boss on the connecting rod of the push rod structure to match the movable slot inside the push rod relay, the movement range of the push rod structure is limited, facilitating the connection and disconnection between the moving and stationary terminals. An arc-extinguishing magnet is also installed above the push plate with the pin, which extinguishes the arc generated when the moving and stationary terminals are connected by magnetic blowing, preventing the insulating push rod from melting. The connecting rod is also provided with a guide groove and a guide slide to guide the movement direction, so that the movement of the push rod is stable and avoids the disconnection caused by the push rod tilting during the pushing process.

[0005] This utility model provides a push rod structure for a push rod relay, including a partition and a push plate connected by a limiting connecting rod. The push plate has two prongs extending outwards from its side surface, and a receiving groove is also provided on the push plate. An arc-extinguishing magnet is inserted into the receiving groove. The limiting connecting rod has bosses at both ends; one end of the limiting connecting rod is connected to the partition through the boss, and the other end is connected to the push plate through the boss. The partition is installed in the movable slot of the push rod relay, and is used to contact the electromagnet. Under the drive of the electromagnet, it moves laterally repeatedly. The push plate is used to contact the moving terminal, and is inserted into the positioning hole of the moving terminal, triggering the moving terminal to move, thus completing the conduction and disconnection functions of the entire relay. The limiting connecting rod between the partition and the push plate is installed on the side wall of the movable slot, and the side wall provides support and limitation for the entire push rod structure. During the installation of this push rod structure, an opening is provided on the side wall, and the manufacturer inserts the limiting connecting rod downwards into the opening. The position of the push rod structure is fixed by setting bosses at both ends of the limiting connecting rod, thereby limiting the movement range of the push rod structure and facilitating the determination of continuity and disconnection between the moving and stationary terminals. The arc-extinguishing magnet set on the push plate extinguishes the arc generated when the moving and stationary terminals are connected by magnetic blowing, preventing the insulating push rod from melting. The specific structure of the push rod relay can be referred to the background art documents. The technical solution of this application only protects the push rod structure. The specific parts that cooperate with the push rod relay can be understood by referring to the background art documents, and will not be elaborated here.

[0006] In some embodiments, the receiving groove is located above the pin and facing the back of the push plate, and several elastic fixing buckles are arranged around the opening of the receiving groove. The arc-extinguishing magnet is susceptible to demagnetization due to high temperatures; therefore, the receiving groove is provided to protect the arc-extinguishing magnet. Since the space between the push plate surface and the moving contact is limited after the pin on the push plate is inserted into the positioning hole, the receiving groove extends towards the back of the partition plate. This allows the arc-extinguishing magnet to perform a magnetic blowing action while effectively utilizing the gap between the partition plate and the push plate. The elastic fixing buckles on the groove opening are used to fix the position of the arc-extinguishing magnet.

[0007] In some embodiments, the elastic retaining clip is inclined towards the receiving groove, and the end of the elastic retaining clip is arc-shaped. The arc-extinguishing magnet is secured in the receiving groove by the elastic retaining clip. With the elastic retaining clip arranged around the groove opening, during installation, the manufacturer only needs to insert the arc-extinguishing magnet into the receiving groove. The top of the inclined elastic retaining clip abuts against the bottom of the arc-extinguishing magnet, limiting its position and fixing it in place.

[0008] In some embodiments, a sidewall with an opening is further included, the limiting connecting rod being located within the opening, and two protruding ridges extending upward from the bottom side of the opening. The sidewall is a component of the movable slot on a push-rod relay; for details, please refer to the background art documents. The opening is used to engage the push-rod structure, and the protruding ridges are used for guidance.

[0009] In some embodiments, the bottom side of the limiting connecting rod is provided with two guide grooves, which are adapted to the protrusion. The guide grooves cooperate with the protrusion on the side wall to guide the movement path of the push rod structure and ensure stability during movement. The specific structure of the movable groove side wall is not described in the background art documents. In order to make the side wall cooperate with the push rod structure of this application, the side wall can be adapted.

[0010] In some embodiments, limiting holes are provided on both sides of the sidewall, and the sidewall is elastic. Limiting holes are provided on the sidewall of the movable groove. When installing the push rod structure, the manufacturer inserts the limiting push rod into the opening of the sidewall, and both the guide slide and the sidewall deform, so that the guide slide is inserted into the limiting hole and the two cooperate.

[0011] In some embodiments, guide slides are provided on both sides of the limiting connecting rod at an upward angle. The guide slides extend outward and are elastic, and are engaged in the limiting hole. The cooperation between the guide slides and the limiting hole limits the movement path of the limiting connecting rod, preventing the push rod structure from tilting due to the thrust of the electromagnet during movement, which could cause the pins to not be properly engaged in the positioning hole and result in a break in the connection.

[0012] In some embodiments, the limiting connecting rod is hollow, and a breakage groove is annularly provided in the middle section of the limiting connecting rod. Because the guide slide is inclined upward, after it is inserted into the limiting hole, the push rod structure cannot be pulled out upward. When the push rod structure is damaged and needs to be replaced, the breakage groove annularly provided in the middle section of the limiting connecting rod, combined with the hollow limiting connecting rod, makes it easy to break at this position. Maintenance personnel can remove the push rod structure by breaking it and insert a new push rod structure to complete the repair.

[0013] In some embodiments, the guide slide is provided with a groove, the position of which corresponds to the position of the breakage groove. To accommodate the breakage groove, the guide slide is also provided with a groove at this position to reduce the hardness of this area and make the limiting connecting rod easier to break. However, it is understood that the guide slide may also retain a portion of the connecting area at the groove position, so that the guide slide still has a guiding function while preventing the limiting connecting rod from breaking during normal pushing.

[0014] By adopting the above technical solution, the beneficial effects of this utility model are:

[0015] This invention features a boss on the connecting rod of the push rod structure, which matches the movable slot inside the push rod relay to limit the range of motion of the push rod structure, facilitating the connection and disconnection between the moving and stationary terminals. An arc-extinguishing magnet is also installed above the push plate with pins, which extinguishes the arc generated when the moving and stationary terminals are connected through magnetic blowing, preventing the insulating push rod from melting. The connecting rod is also equipped with a guide groove and a guide slide to guide the direction of movement, ensuring stable movement of the push rod and avoiding disconnection caused by the push rod tilting during the pushing process.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0017] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0018] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0020] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0021] 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 one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the push rod relay in some embodiments of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the push rod structure in some embodiments of this utility model;

[0024] Figure 3 This is a cross-sectional schematic diagram showing the fit between the push rod structure and the side wall of the movable groove in some embodiments of this utility model.

[0025] Explanation of key figure labels:

[0026] 1. Partition;

[0027] 2. Limiting connecting rod;

[0028] 21. Boss; 22. Guide groove; 23. Guide slide; 24. Break groove; 25. Groove;

[0029] 3. Push plate;

[0030] 4. Pin;

[0031] 5. Receiving tank;

[0032] 6. Arc-extinguishing magnet;

[0033] 7. Flexible fixing buckle;

[0034] 8. Side walls;

[0035] 81. Raised edge; 82. Limiting hole. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0037] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two main bodies at the connection point are not connected through a transitional structure, but are simply connected to form a whole through a connecting structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0039] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] Reference Figure 1 , Figure 1 This is a schematic diagram of the overall structure of the push rod relay in some embodiments of this utility model.

[0041] According to some embodiments of the present invention, the present invention provides a partition plate 1 and a push plate 3 connected by a limiting connecting rod 2. The push plate 3 has two prongs 4 extending outward from its side surface. The push plate 3 also has a receiving groove 5, in which an arc-extinguishing magnet 6 is inserted. The limiting connecting rod 2 has protrusions 21 at both ends. One end of the limiting connecting rod 2 is connected to the partition plate 1 through the protrusion 21, and the other end of the limiting connecting rod 2 is connected to the push plate 3 through the protrusion 21. The partition 1 is fitted into the movable slot of the push rod relay and is used to contact the electromagnet. Driven by the electromagnet, it moves laterally repeatedly. The push plate 3 is used to contact the moving terminal and is fitted into the positioning hole of the moving terminal, triggering the moving terminal to move. Together, they complete the conduction and disconnection functions of the entire relay. The limiting connecting rod 2, which is set between the partition 1 and the push plate 3, is fitted onto the side wall 8 of the movable slot. The side wall 8 provides support and limits the entire push rod structure. During the installation of this push rod structure, there is an opening on the side wall 8. The manufacturer inserts the limiting connecting rod 2 downward into the opening. This fixes the position of the push rod structure. By setting bosses 21 at both ends of the limiting connecting rod 2, the movement range of the push rod structure is limited, making it easier to determine the continuity and disconnection between the moving and stationary terminals. The arc-extinguishing magnet 6 set on the push plate 3 extinguishes the arc generated when the moving and stationary terminals are connected by magnetic blowing, preventing the insulating push rod from melting. The specific structure of the push rod relay can be referred to the background art documents. The technical solution of this application only protects the push rod structure. The specific parts that cooperate with the push rod relay can be understood by referring to the background art documents, and will not be elaborated here.

[0042] Reference Figure 2 , Figure 2 This is a schematic diagram of the overall structure of the push rod structure in some embodiments of this utility model; Figure 3This is a cross-sectional schematic diagram showing the fit between the push rod structure and the side wall of the movable groove in some embodiments of this utility model.

[0043] According to some embodiments of this utility model, optionally, the receiving groove 5 is located above the pin 4 and faces the back side of the push plate 3, and several elastic fixing buckles 7 are arranged around the opening of the receiving groove 5. The arc-extinguishing magnet 6 is easily demagnetized by high temperature, so the receiving groove 5 is provided to protect the arc-extinguishing magnet 6. Since the position between the side of the push plate 3 and the moving contact is limited after the pin 4 on the push plate 3 is inserted into the positioning hole, the receiving groove 5 is provided to extend towards the back side of the partition plate 1. This allows the arc-extinguishing magnet 6 to perform a magnetic blowing function while effectively utilizing the gap between the partition plate 1 and the push plate 3. The elastic fixing buckles 7 on the opening are used to fix the position of the arc-extinguishing magnet 6.

[0044] The elastic fixing buckle 7 is inclined towards the receiving groove 5, and the end of the elastic fixing buckle 7 is arc-shaped. The arc-extinguishing magnet 6 is secured in the receiving groove 5 by the elastic fixing buckle 7. With the elastic fixing buckle 7 arranged around the groove opening, the manufacturer only needs to insert the arc-extinguishing magnet 6 into the receiving groove 5 during the installation process. The top of the inclined elastic fixing buckle 7 can abut against the bottom of the arc-extinguishing magnet 6, which can limit the position of the arc-extinguishing magnet 6 and fix its position.

[0045] The push rod structure also includes a side wall 8 with an opening. The limiting connecting rod 2 is located within the opening, and two protruding ribs 81 extend upward from the bottom side of the opening. The side wall 8 is a component of the movable slot on the push rod relay, as detailed in the background art documents. The opening is used to engage the push rod structure, and the protruding ribs 81 are used for guidance.

[0046] The bottom side of the limiting connecting rod 2 is provided with two guide grooves 22, which are adapted to the protrusion 81. The guide grooves 22 cooperate with the protrusion 81 on the side wall 8 to guide the movement path of the push rod structure and ensure stability during movement. The specific structure of the movable groove side wall 8 is not described in the background art documents. In order to make the side wall 8 cooperate with the push rod structure of this application, the side wall 8 can be adapted.

[0047] Limiting holes 82 are provided on both sides of the side wall 8, and the side wall 8 is elastic. Limiting holes 82 are provided on the side wall 8 of the movable groove. When installing the push rod structure, the manufacturer inserts the limiting push rod into the opening of the side wall 8. Both the guide slide 23 and the side wall 8 deform, so that the guide slide 23 is inserted into the limiting hole 82 and the two cooperate.

[0048] The limiting connecting rod 2 has guide slides 23 inclined upwards on both sides. The guide slides 23 extend outwards and are elastic, and are engaged in the limiting hole 82. The cooperation between the guide slides 23 and the limiting hole 82 limits the movement path of the limiting connecting rod 2, preventing the push rod structure from tilting due to the thrust of the electromagnet during movement, which could cause the pin 4 to not be properly engaged in the positioning hole and result in a break in the connection.

[0049] The limiting connecting rod 2 is hollow, and a breakage groove 24 is annularly provided in the middle section of the limiting connecting rod 2. Because the guide slide 23 is inclined upward, after it is inserted into the limiting hole 82, the push rod structure cannot be pulled out upward. When the push rod structure is damaged and needs to be replaced, the breakage groove 24 annularly provided in the middle section of the limiting connecting rod 2, together with the hollow limiting connecting rod 2, makes it easy to break at this position. Maintenance personnel can remove the push rod structure by breaking it and insert a new push rod structure to complete the repair.

[0050] The guide slide 23 is provided with a groove 25, which corresponds to the position of the breakage groove 24. To match the setting of the breakage groove 24, the guide slide 23 is also provided with a groove 25 at this position to reduce the hardness of this area and make the limiting connecting rod 2 easier to break. However, it is understandable that the guide slide 23 can also retain a part of the connecting area at the groove 25 position, so that the guide slide 23 still has a guiding function while preventing the limiting connecting rod 2 from breaking during normal pushing.

[0051] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0052] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0053] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A push rod structure for a push rod type relay, characterized in that, The device includes a partition and a push plate connected by a limiting connecting rod. The push plate has two prongs extending outward from its side surface. The push plate also has a receiving groove in which an arc-extinguishing magnet is inserted. The limiting connecting rod has bosses at both ends. One end of the limiting connecting rod is connected to the partition through the boss, and the other end of the limiting connecting rod is connected to the push plate through the boss.

2. The push rod structure of the push rod relay according to claim 1, characterized in that, The receiving slot is located above the pin and facing the back of the push plate, and several elastic fixing buckles are arranged around the opening of the receiving slot.

3. The push rod structure of the push rod relay according to claim 2, characterized in that, The elastic fixing buckle is inclined towards the receiving groove, and the end of the elastic fixing buckle is arc-shaped. The arc-extinguishing magnet is fixed in the receiving groove by the elastic fixing buckle.

4. The push rod structure of the push rod relay according to claim 1, characterized in that, It also includes a side wall with an opening, the limiting connecting rod is located in the opening, and two protruding ridges extend upward from the bottom side of the opening.

5. The push rod structure of the push rod relay according to claim 4, characterized in that, The bottom side of the limiting connecting rod is provided with two guide grooves, which are adapted to the convex ridge.

6. The push rod structure of the push rod relay according to claim 4, characterized in that, Limiting holes are provided on both sides of the sidewall, and the sidewall is elastic.

7. The push rod structure of the push rod relay according to claim 6, characterized in that, The limiting connecting rod has guide slides on both sides that are inclined upwards. The guide slides extend outwards and are elastic, and are locked in the limiting hole.

8. The push rod structure of the push rod relay according to claim 7, characterized in that, The limiting connecting rod is hollow, and a breakage groove is provided in the middle section of the limiting connecting rod in an annular shape.

9. The push rod structure of the push rod relay according to claim 8, characterized in that, The guide slide is provided with a groove, the position of which corresponds to the position of the break groove.

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