Circuit breaker handle capable of being linked with auxiliary contact handle

Abstract

A circuit breaker handle capable of being linked with an auxiliary contact handle comprises an operation handle which is linked with a circuit breaker body and comprises a first handle part extending in the width direction of the circuit breaker body, matching grooves are formed in the two ends of the first handle part, and first insertion holes are formed in the bottoms of the matching grooves in the axis direction; the auxiliary contact OF handle is in linkage with the auxiliary contact and comprises a second handle part extending in the auxiliary width direction, the second handle part is provided with a connecting end corresponding to the direction of the first handle part, the connecting end is embedded into the matching groove, and the connecting end is provided with a second insertion hole in the axis direction; and two ends of the roller pin are respectively inserted into the first jack and the second jack, so that the axial fixation of the operating handle and the auxiliary contact OF handle is realized. By additionally arranging the roller pin, the problem that the handle of the auxiliary contact is broken due to frequent closing is solved, and the problem that the synchronism of the auxiliary contact and the circuit breaker is poor is solved.

Description

Technical Field

[0001] The utility model specifically relates to a circuit breaker handle which can be linked with an auxiliary contact handle. Background Art

[0002] The auxiliary contact OF is an assembly accessory of the circuit breaker. It is mainly installed on one side of the small circuit breaker to indicate the on / off status of the circuit breaker.

[0003] At present, in the industry, the OF structures of assembled auxiliary contacts of circuit breakers are basically the following two:

[0004] The first structure: the auxiliary contact OF handle is installed with an assembly shaft, which is inserted into the circuit breaker handle hole to achieve the closing of the auxiliary contact when the circuit breaker is closed;

[0005] The second structure: a plastic boss is used on the auxiliary contact OF handle instead of the assembly shaft.

[0006] The disadvantage of the first structure is that when the circuit breaker handle is closed, the auxiliary contact OF handle and the circuit breaker handle are not in the same straight line, but are inclined, resulting in poor synchronization of the product. The circuit breaker is energized before the auxiliary contact OF, and multiple operations of the product will cause the needle roller to deform.

[0007] The disadvantage of the second structure is that because plastic parts are used instead of assembled rollers, the plastic parts are restricted by the strength of plastics, and the handle will break, resulting in the circuit breaker closing unable to drive the auxiliary contacts. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model aims to provide a circuit breaker handle which can be linked to an auxiliary contact handle.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A circuit breaker handle capable of being linked with an auxiliary contact handle, comprising:

[0011] An operating handle is arranged in linkage with the circuit breaker body, and comprises a first handle portion extending along the width direction of the circuit breaker body, both ends of the first handle portion are provided with matching grooves, and the bottom of the matching groove is provided with a first plug hole along the axial direction;

[0012] The auxiliary contact OF handle is arranged in linkage with the auxiliary contact, and comprises a second handle portion extending in the auxiliary width direction, the second handle portion is provided with a connection end corresponding to the direction of the first handle portion, the connection end is embedded in the matching groove, and the connection end is provided with a second jack along the axial direction;

[0013] The two ends of the roller needle are respectively inserted into the first plug hole and the second plug hole to achieve axial fixation of the operating handle and the auxiliary contact OF handle.

[0014] The needle roller is a metal shaft.

[0015] One end of the needle roller ends in the first insertion hole, and the other end of the needle roller ends in the second insertion hole.

[0016] Both ends of the first handle portion are provided with openings, and the openings extend axially toward the inside of the first handle portion, thereby forming the matching grooves respectively.

[0017] A stopper is provided at the bottom of the matching groove, and the first plug hole is integrally formed on the stopper.

[0018] The cross section of the matching groove is a quadrilateral, and the connecting end is a quadrangular prism adapted to the matching groove.

[0019] The first jack is coaxially arranged with the second jack.

[0020] The diameter of the second plug hole is smaller than or equal to the diameter of the first plug hole.

[0021] One end of the rolling needle is interference fit with the second insertion hole.

[0022] The beneficial effects of the utility model are as follows: by adding a roller needle, the problem of the auxiliary contact handle being broken due to frequent closing is solved, and the problem of the poor synchronization between the auxiliary contact and the circuit breaker is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model is a schematic diagram of the structure of a circuit breaker.

[0024] Figure 2 It is an explosion diagram of the utility model.

[0025] Figure 3 It is a cross-sectional schematic diagram of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the operating handle of the utility model.

[0027] Figure 5 It is a structural schematic diagram of the auxiliary contact OF handle of the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] As shown in the figure, a circuit breaker handle capable of being linked with an auxiliary contact handle comprises:

[0031] The operating handle 2 is arranged in linkage with the circuit breaker body 1, and comprises a first handle portion 24 extending along the width direction of the circuit breaker body. The bottom of the first handle portion extends to the inside of the circuit breaker body and can rotate relatively. Both ends of the first handle portion are provided with matching grooves 21. The bottom of the matching groove is provided with a first plug hole 23 along the axial direction. The width of the first handle portion is adapted to the width of the circuit breaker body, so that the first handle portion has a larger length, thereby increasing the surface area of ​​the first handle portion, making it convenient for the user to apply force to the first handle portion, thereby conveniently pulling the first handle portion;

[0032] The auxiliary contact OF handle 3 is arranged in linkage with the auxiliary contact 4, and includes a second handle portion 33 extending in the auxiliary width direction, the second handle portion is provided with a connection end 31 corresponding to the direction of the first handle portion, the connection end is embedded in the matching groove, and the connection end is provided with a second plug hole 32 along the axial direction. The second handle portion partially extends to the inside and is used to drive the auxiliary contact to move, and one end thereof extends in the direction of the first handle portion to form a connection end, and the connection end is embedded in the matching groove, so that the two constitute a linkage arrangement;

[0033] The two ends of the needle roller 5 are respectively inserted into the first hole 23 and the second hole 32 to realize the axial fixation of the operating handle and the auxiliary contact OF handle. By adding a needle roller between the operating handle and the auxiliary contact OF handle, the rigidity of the needle roller is used to improve the strength of the connection between the two and enhance the synchronization of the two. At the same time, the two handles are not easy to break and the service life is extended.

[0034] The roller needle is a metal shaft, which is made of metal, so that the roller needle has higher strength. It is placed between the two handles to improve the strength of the connection between the two handles.

[0035] One end of the needle roller ends in the first socket, and the other end ends in the second socket. When the adjacent operating handle is connected to the auxiliary contact OF handle, first insert one end of the needle roller into the first socket of the operating handle, and then insert the other end of the needle roller into the second socket of the auxiliary contact OF handle, so that the connector 300 axially connects the two adjacent handles together so that the two can be linked.

[0036] Both ends of the first handle portion are provided with openings, and the openings extend axially toward the inside of the first handle portion, thereby forming the matching grooves. Both openings are arranged parallel to the axis of the first handle portion itself, and preferably coaxially with the axis of the first handle portion itself. In addition, the size and shape of the two openings are preferably equal to facilitate processing and manufacturing. The cross-sectional area of ​​the two openings is 40-80% of the cross-sectional area of ​​the first handle portion, so as to ensure that the connecting end that matches the matching groove has a certain radial dimension, which is convenient for installation in the matching groove. At the same time, the large radial dimension can improve the rigidity of the connecting end itself and prevent flexural deformation, which is conducive to ensuring the linkage efficiency between the two handles and improving the synchronization between the two.

[0037] A stopper 22 is provided at the bottom of the mating groove, and the first socket is integrally formed on the stopper. The stopper is used to limit the maximum movement position of the connecting end so that axial movement cannot be performed, thereby achieving axial positioning of the connecting end and preventing axial movement after installation, thereby ensuring the reliability of the connection.

[0038] At the same time, a first insertion hole is arranged on the blocking member, which can cooperate with the second insertion hole to fix the roller needle.

[0039] The cross section of the matching groove is a quadrilateral, and the connecting end is a quadrangular prism that matches the matching groove. The shape of the matching groove cross section can be circular, triangular, quadrilateral, etc., and even the shape of the cross section can change in the axial direction, for example, the matching groove is circular near the left end and triangular near the right end. However, the best cross section is a quadrilateral, and accordingly, the outer shape of the connecting end is a quadrangular prism that matches the cross section to ensure the stability of the connection.

[0040] The first socket and the second socket are coaxially arranged, and the first socket and the second socket are coaxially arranged, which can ensure the synchronization of the needle roller, and also ensure that the needle roller is coaxial with the two handles when being limited by the two.

[0041] The diameter of the second socket is smaller than or equal to the diameter of the first socket, and the corresponding inter-setting can also be performed, that is, the second socket is used to fix the roller needle, and then cooperates with the first socket. The slightly larger first socket can ensure the fixing of the roller needle.

[0042] One end of the rolling needle is interference fit with the second insertion hole, and the rolling needle is fixed by using the interference fit.

[0043] By adding a roller needle between the connecting end and the matching groove to improve the connection strength between the two, the product is synchronized, and the connection strength between the two is higher and not easy to break.

[0044] The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A circuit breaker handle capable of being linked to an auxiliary contact handle, characterized in that: It includes: An operating handle is arranged in linkage with the circuit breaker body, and comprises a first handle portion extending along the width direction of the circuit breaker body, both ends of the first handle portion are provided with matching grooves, and the bottom of the matching groove is provided with a first plug hole along the axial direction; The auxiliary contact OF handle is arranged in linkage with the auxiliary contact, and comprises a second handle portion extending in the auxiliary width direction, the second handle portion is provided with a connection end corresponding to the direction of the first handle portion, the connection end is embedded in the matching groove, and the connection end is provided with a second jack along the axial direction; The two ends of the roller needle are respectively inserted into the first plug hole and the second plug hole to achieve axial fixation of the operating handle and the auxiliary contact OF handle.

2. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: The needle roller is a metal shaft.

3. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1 or 2, characterized in that: One end of the needle roller ends in the first insertion hole, and the other end of the needle roller ends in the second insertion hole.

4. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: Both ends of the first handle portion are provided with openings, and the openings extend axially toward the inside of the first handle portion, thereby forming the matching grooves respectively.

5. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: A stopper is provided at the bottom of the matching groove, and the first plug hole is integrally formed on the stopper.

6. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: The cross section of the matching groove is a quadrilateral, and the connecting end is a quadrangular prism adapted to the matching groove.

7. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: The first jack is coaxially arranged with the second jack.

8. The circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: The diameter of the second plug hole is smaller than or equal to the diameter of the first plug hole.

9. A circuit breaker handle capable of being linked to an auxiliary contact handle according to claim 1, characterized in that: One end of the rolling needle is interference fit with the second insertion hole.

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