CN215377335U

CN215377335U - Relay self-locking and inching test device

Info

Publication number: CN215377335U
Application number: CN202121826729.6U
Authority: CN
Inventors: 邹先宝; 彭德教
Original assignee: Yueqing Yijie Electric Appliance Co ltd
Current assignee: Yueqing Yijie Electric Appliance Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2021-12-31
Anticipated expiration: 2031-08-06

Abstract

The application discloses a relay self-locking and inching test device, wherein a relay shell is a box body with a single open side, a mounting cavity which is sunken towards the inner side of the relay shell is arranged on the relay shell, a mounting hole is formed in the mounting cavity in the outer side direction of the relay shell, a bottom plate is arranged at the bottom of the mounting cavity, and a through hole is formed in the bottom plate; the testing button is arranged in the mounting cavity and matched with the through hole, and comprises a button part and a rod part which are connected with each other, a limiting part is arranged on the rod part, and the part of the rod part, which is far away from one end of the button part, protrudes outwards to form a trigger button; the elastic piece is arranged between the button part and the bottom plate and is used for resetting the test button which moves towards the direction; according to the relay self-locking and inching test device provided by the utility model, the relay inching test function is realized by pressing and releasing the test button; the self-locking function of the relay can be switched on and off by rotating the test button; the test button is reset through the elasticity of the elastic piece, and the probability of failure of the test button is reduced.

Description

Relay self-locking and inching test device

Technical Field

The utility model relates to the field of relays, in particular to a relay self-locking and inching test device.

Background

Some types of relays have a mechanical self-locking function or a inching test function at present, but a relay having the two functions at the same time does not appear at present. The parts with the mechanical self-locking function or the inching test function have the problems of inconvenient operation and easy generation of defects or failures along with the change of time, temperature or environment.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a relay self-locking and inching test device, aiming at solving the problems that a part with a mechanical self-locking function or an inching test function in a relay is inconvenient to operate and is easy to generate bad or invalid along with the change of time, temperature or environment.

In order to achieve the above object, the present invention provides a relay latching and inching test device for being combined with a relay main body, in which a contact that can be switched between triggered and released is provided, the relay latching and inching test device including:

the relay main body is wrapped by the relay shell which is a box body with an open single face, an installation cavity which is sunken towards the inner side of the relay shell is arranged on the relay shell, an installation opening is formed in the direction of the outer side of the relay shell of the installation cavity, a bottom plate is arranged at the bottom of the installation cavity, and a through hole is formed in the bottom plate;

the testing button is arranged in the mounting cavity and matched with the through hole, and comprises a button part and a rod part which are connected with each other, a limiting part is arranged on the rod part, the limiting part is positioned on one surface of the bottom plate close to the inner side of the relay shell, and the part of the rod part, which is far away from one end of the button part, protrudes outwards to form a triggering button;

the elastic piece is arranged between the button part and the bottom plate and is used for resetting the test button which moves towards the bottom plate;

when the test button moves downwards, one end of the rod part, far away from the button part, triggers the contact, and when the test button rotates, the trigger button enables the contact to be switched between triggered and released.

Furthermore, the test button is of an integrally formed structure, and the limiting portion is a limiting clamping ring protruding out of the outer wall of the rod portion.

Furthermore, the test button is of a split structure, and a connection point of the test button is located between the button part and the limiting part.

Further, the bottom plate is an annular clamp spring.

Furthermore, a straight-line-shaped recess or a cross-shaped recess is formed in one end face, away from the rod part, of the button part.

Further, the elastic member is a coil spring.

Further, the elastic member is in a compressed state.

Furthermore, the rod part is cylindrical, and a semicircular part far away from one end of the button part protrudes outwards to form a trigger button.

The relay self-locking and inching test device provided by the utility model adopts one test button to realize the self-locking function and the inching test function; the inching test function of the relay is realized by pressing and releasing the test button; the self-locking function of the relay can be switched on and off by rotating the test button; the test button is reset through the elasticity of the elastic piece, and the probability of failure of the test button is reduced.

Drawings

Fig. 1 is an assembly schematic view of a relay housing, a test button and an elastic member in a relay latching and clicking test device according to an embodiment of the present invention (the relay housing is a cross-sectional view);

FIG. 2 is a schematic view (in cross-section) of a relay latching and jog test device in accordance with one embodiment of the present invention;

FIG. 3 is a schematic diagram (top view) of a relay housing in a relay latching and click testing apparatus according to an embodiment of the utility model;

fig. 4 is a schematic diagram (top view) of a relay latching and jog test device in accordance with an embodiment of the present invention.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As used herein, the singular forms "a", "an", "the" and "the" include plural referents unless the content clearly dictates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, units, modules, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Referring to fig. 1 to 4, in an embodiment of the present invention, a relay latching and inching test apparatus is provided, for combining with a relay main body, in which a contact that can be switched between triggered and released is disposed, the relay latching and inching test apparatus including:

the relay housing 100 is a box body with a single side opened so as to wrap the relay main body, the relay housing 100 is provided with an installation cavity 110 recessed towards the inner side of the relay housing 100, the installation cavity 110 is provided with an installation opening 111 in the outer side direction of the relay housing 100, the bottom of the installation cavity 110 is provided with a bottom plate 112, and the bottom plate 112 is provided with a through hole;

the test button 200 is arranged in the installation cavity 110 and matched with the through hole, and comprises a button part 210 and a rod part 220 which are connected with each other, the rod part 220 is provided with a limiting part 221, the limiting part 221 is positioned on one surface of the bottom plate 112 close to the inner side of the relay shell 100, and the part of one end, away from the button part 210, of the rod part 220 protrudes outwards to form a trigger button 222;

an elastic member 300 disposed between the button portion 210 and the bottom plate 112 for restoring the test button 200 moving forward;

wherein, when the test button 200 moves downwards, the end of the rod part 220 far away from the button part 210 triggers the contact, and when the test button 200 rotates, the trigger button 222 switches the contact between triggered and released.

The present invention uses one test button 200 to achieve the self-locking function and the click test function. Specifically, when the test button 200 is pressed, the end of the rod 220 away from the button 210 triggers the contact, thereby switching the contact to a triggered state; when the test button 200 is released, under the action of the elastic member 300, the end of the lever 220 away from the button portion 210 is separated from the contact, thereby switching the contact to a released state. The relay inching test function is realized by the pressing and releasing of the test button 200. And the opening and closing of the self-locking function of the relay can be realized by rotating the test button 200. Specifically, when the test button 200 is rotated, the trigger button 222 is switched between contact and disengagement with the contacts; when the side wall of the trigger button 222 contacts with the contact, the contact is in a triggered state, and the self-locking function is started at the moment; when the side wall of the trigger button 222 is disengaged from the contacts, the contacts are released, and the self-locking function is turned off. The reset of the test button 200 is achieved by the elastic force of the elastic member 300, and the possibility of its failure is reduced.

In one embodiment, the testing button 200 is an integrally formed structure, and the position-limiting portion 221 is a position-limiting snap ring protruding from the outer wall of the rod portion 220.

The position-limiting part 221 is located on a surface of the bottom plate 112 close to the inner side of the relay housing 100, and the position-limiting part 221 is used for limiting the test button 200 from being released from the mounting opening 111 of the mounting cavity 110. In this embodiment, the position-limiting portion 221 is a position-limiting snap ring, and the position-limiting snap ring is integrally formed on the testing button 200, so that the separate formation and the separate installation of the position-limiting portion 221 are eliminated.

In one embodiment, the test button 200 is a separate structure, and the connection point of the test button 200 is between the button portion 210 and the position-limiting portion 221.

Since the position-limiting portion 221 is to limit the test button 200 from coming out of the mounting opening 111, it is obvious that the position-limiting portion 221 is not easy to pass through the through hole (e.g., the outer diameter of the position-limiting portion 221 is larger than the inner diameter of the through hole). In the present embodiment, the testing button 200 is a separate structure, and the connection point is between the button portion 210 and the position-limiting portion 221; then during the installation of the test button 200, the test button 200 of the lower half can be inserted through the through hole, the test button 200 of the upper half can be inserted through the mounting opening 111, and then a connection (adhesive, snap, screw, or press-fit) is formed therebetween.

In one embodiment, the bottom plate 112 is a ring-shaped snap spring.

The annular clamp spring can be fastened, clamped or bonded to the mounting cavity 110 to form the bottom plate 112. Specifically, a hole is formed in the middle of the annular clamp spring. Due to the elastic property of the annular clamp spring, the limiting part 221 may expand and deform the annular clamp spring when the test button 200 is installed, so that the limiting part 221 passes through; during the normal use of the test button 200, the position-limiting portion 221 will not force the ring-shaped clamp spring to expand and deform until the position-limiting portion 221 can pass through. Due to the metal material (such as stainless steel), the possibility of poor or failure of the annular clamp spring caused by changes of time, temperature or environment is reduced.

In one embodiment, an end of the button portion 210 away from the rod portion 220 is provided with a "I" shaped recess or a "cross" shaped recess.

The button portion 210 having the recess of the shape of "yi" or "cross" is convenient for the user (e.g., using a screwdriver) to operate the test button 200. In other embodiments, an end of the button portion 210 away from the shaft portion 220 may be provided with a hexagonal-shaped recess.

In one embodiment, the elastic member 300 is a coil spring.

The elastic stroke of the spiral spring is large, and a good pressing effect can be generated for the test button 200; and the cost is lower, easy to install.

In one embodiment, the resilient member 300 is in a compressed state.

The elastic member 300 is disposed between the button portion 210 and the bottom plate 112, and if the elastic member 300 is in a free state when the test button 200 is not pressed down, the test button 200 may be in a loose state when some machining dimension deviation occurs in the relay auto-lock and the click test apparatus. In the present embodiment, the elastic member 300 is in a compressed state, and the probability of the test button 200 being loosened is reduced.

In one embodiment, the shaft 220 is cylindrical, and a semi-circular portion of the shaft away from an end of the button portion 210 protrudes outward to form a trigger button 222.

The shaft portion 220 is easily formed and stably rotated, and the cross section of the trigger button 222 is semicircular, so that the trigger button 222 can smoothly switch the contacts between being triggered and being released when the test button 200 is rotated. Specifically, when the sidewall of the trigger button 222 contacts a contact, the contact is triggered; the contacts are released when the side walls of the trigger button 222 disengage from the contacts.

In summary, the relay self-locking and inching test device provided by the utility model adopts one test button 200 to realize the self-locking function and the inching test function; the relay inching test function is realized by pressing and releasing the test button 200; the self-locking function of the relay can be switched on and off by rotating the test button 200; the reset of the test button 200 is achieved by the elastic force of the elastic member 300, and the possibility of its failure is reduced.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a relay auto-lock and inching testing arrangement for combine with the relay main part, be provided with the contact that can switch over between triggered and released in the relay main part, its characterized in that, relay auto-lock and inching testing arrangement include:

2. The relay self-locking and inching test device according to claim 1, wherein the test button is an integrally formed structure, and the limiting portion is a limiting snap ring protruding from the outer wall of the rod portion.

3. The relay auto-lock and jog test device according to claim 1, wherein said test button is a split structure, and a connection point of said test button is between said button portion and said limit portion.

4. The relay latching and inching test device of any one of claims 1-3, wherein the base plate is a circlip.

5. The relay self-locking and inching test device according to any one of claims 1 to 3, wherein an end surface of the button portion away from the rod portion is provided with a straight recess or a cross recess.

6. The relay latching and inching test device of any one of claims 1-3, wherein the resilient member is a coil spring.

7. The relay latching and inching test device of any one of claims 1-3, wherein the spring is in compression.

8. The relay latching and inching test device of any one of claims 1-3, wherein the lever is cylindrical and a semi-circular portion of the lever distal to the button projects outward to form a trigger button.