CN216354018U - Spring support device for low-voltage circuit breaker - Google Patents
Spring support device for low-voltage circuit breaker Download PDFInfo
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- CN216354018U CN216354018U CN202122822068.6U CN202122822068U CN216354018U CN 216354018 U CN216354018 U CN 216354018U CN 202122822068 U CN202122822068 U CN 202122822068U CN 216354018 U CN216354018 U CN 216354018U
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Abstract
The utility model discloses a spring supporting device for a low-voltage circuit breaker, which comprises a supporting cylinder, a spring fixing device and a spring fixing device, wherein the supporting cylinder is fixed on a support inside the low-voltage circuit breaker; a first screw rod which is coaxially arranged with the supporting cylinder and is in threaded connection with the supporting cylinder is arranged in the middle of one end of the supporting cylinder in a penetrating mode, a lug boss in a regular hexagon shape is integrally formed on the outer end portion of the first screw rod, and a supporting plate used for supporting the end portion of a spring located in the supporting cylinder is fixed on the inner end portion of the first screw rod; the utility model not only can realize the support of the spring in the energy storage unit, but also can adjust the elastic potential energy of the spring in the energy storage unit, thus the elastic potential energy of the spring can be adjusted to a proper state, and the reliability of the energy storage unit in the low-voltage circuit breaker during working can be ensured.
Description
Technical Field
The utility model relates to the technical field of low-voltage circuit breakers, in particular to a spring supporting device for a low-voltage circuit breaker.
Background
The low-voltage circuit breaker is the electric installation that is used for the break-make of control circuit, and the energy storage unit is then the indispensable part in the low-voltage circuit breaker, and the spring that is located the energy storage unit at present is back in installing the low-voltage circuit breaker, because the elastic potential energy of spring has the defect of unadjustable, so, leads to the elastic potential energy of spring to appear too big or the shortcoming of undersize easily to can influence the reliability of energy storage unit work.
SUMMERY OF THE UTILITY MODEL
In view of the shortcomings of the prior art, the present invention provides a spring supporting device for a low-voltage circuit breaker, which is capable of adjusting the elastic potential energy of a spring in an energy storage unit as required.
The spring supporting device for the low-voltage circuit breaker comprises a supporting cylinder, a spring fixing device and a spring fixing device, wherein the supporting cylinder is fixed on a support inside the low-voltage circuit breaker; the middle part of one end of the supporting cylinder is penetrated with a first screw rod which is coaxially arranged with the supporting cylinder and is in threaded connection with the supporting cylinder, a lug boss in a regular hexagon shape is integrally formed on the outer end part of the first screw rod, and a supporting plate for supporting the end part of a spring positioned in the supporting cylinder is fixed on the inner end part of the first screw rod.
The utility model relates to a spring supporting device for a low-voltage circuit breaker, wherein a second screw rod with the outer diameter smaller than that of a first screw rod is integrally formed on the inner end part of the first screw rod, the second screw rod and the first screw rod are coaxially arranged, a supporting plate is sleeved outside the second screw rod, an annular step for supporting the supporting plate is formed at the joint of the second screw rod and the first screw rod, and a first nut for pressing the supporting plate is connected to the second screw rod positioned on the inner side of the supporting plate in a threaded manner; by adopting such a structure, the support plate can be reliably fixed to the second screw and connected to the first screw.
The utility model relates to a spring supporting device for a low-voltage circuit breaker, wherein a first screw rod positioned outside a supporting cylinder is sleeved with a second nut in threaded connection with the first screw rod, and the second nut is abutted against the outer wall at the other end of the supporting cylinder; through the setting of second nut, after first screw rod relatively supported a section of thick bamboo and rotates, can support tightly through rotating the second nut so that second nut and support a section of thick bamboo, the second nut promptly can and tightly with supporting a section of thick bamboo to can effectively avoid first screw rod to appear supporting a section of thick bamboo free rotation's phenomenon relatively.
According to the spring supporting device for the low-voltage circuit breaker, the annular chamfer surface is arranged on the inner wall of the opening end of the containing cavity and is used for being matched with the outer wall of the spring to guide so as to facilitate the spring to be retracted into the containing cavity; through the arrangement of the annular chamfer surface, when the spring contracts, the outer wall of the spring can be matched with the annular chamfer surface for guiding so that the spring can be conveniently retracted into the supporting cylinder.
The utility model relates to a spring supporting device for a low-voltage circuit breaker, wherein an annular convex edge is arranged on the outer wall of the other end of a supporting cylinder, a plurality of through holes which are uniformly distributed in the circumferential direction are formed in the annular convex edge, and each through hole is used for allowing a bolt to pass through so as to fix the supporting cylinder on a bracket positioned in the low-voltage circuit breaker; by adopting such a structure, the support cylinder can be reliably fixed to the cradle inside the low-voltage circuit breaker.
The utility model not only can realize the support of the spring in the energy storage unit, but also can adjust the elastic potential energy of the spring in the energy storage unit, thus the elastic potential energy of the spring can be adjusted to a proper state, and the reliability of the energy storage unit in the low-voltage circuit breaker during working can be ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
fig. 3 is a schematic cross-sectional structure of the present invention.
Detailed Description
In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The spring supporting device for the low-voltage circuit breaker comprises a supporting cylinder 1 fixed on a support positioned in the low-voltage circuit breaker, wherein a containing cavity 11 with one open end and used for inserting one end of a spring is arranged in the supporting cylinder 1, and the open end of the containing cavity 11 faces one side of the support positioned in the low-voltage circuit breaker; the middle part of one end of the supporting cylinder 1 is penetrated with a first screw rod 2 which is coaxially arranged with the supporting cylinder 1 and is in threaded connection with the supporting cylinder 1, a lug boss 21 with a regular hexagonal shape is integrally formed on the outer end part of the first screw rod 2, and a supporting plate 3 which is used for supporting the end part of a spring positioned in the supporting cylinder 1 is fixed on the inner end part of the first screw rod 2.
A second screw 22 with the outer diameter smaller than that of the first screw 2 is integrally formed on the inner end part of the first screw 2, the second screw 22 and the first screw 2 are coaxially arranged, the support plate 3 is sleeved outside the second screw 22, an annular step 23 for supporting the support plate 3 is formed at the joint of the second screw 22 and the first screw 2, and a first nut 4 for pressing the support plate 3 is connected to the second screw 22 on the inner side of the support plate 3 in a threaded manner; by adopting such a structure, the support plate can be reliably fixed to the second screw and connected to the first screw.
A second nut 5 in threaded connection with the first screw rod 2 is sleeved on the first screw rod 2 positioned outside the supporting cylinder 1, and the second nut 5 abuts against the outer wall of the other end of the supporting cylinder 1; through the setting of second nut, after first screw rod relatively supported a section of thick bamboo and rotates, can support tightly through rotating the second nut so that second nut and support a section of thick bamboo, the second nut promptly can and tightly with supporting a section of thick bamboo to can effectively avoid first screw rod to appear supporting a section of thick bamboo free rotation's phenomenon relatively.
An annular chamfer surface 12 is arranged on the inner wall of the opening end of the accommodating cavity 11, and the annular chamfer surface 12 is matched with the outer wall of the spring for guiding so as to facilitate the spring to be retracted into the accommodating cavity 11; through the arrangement of the annular chamfer surface, when the spring contracts, the outer wall of the spring can be matched with the annular chamfer surface for guiding so that the spring can be conveniently retracted into the supporting cylinder.
An annular convex edge 13 is arranged on the outer wall of the other end of the support cylinder 1, a plurality of through holes 14 which are uniformly distributed in the circumferential direction are formed in the annular convex edge 13, and each through hole 14 is used for allowing a bolt to pass through so as to fix the support cylinder 1 on a support positioned in the low-voltage circuit breaker; by adopting such a structure, the support cylinder can be reliably fixed to the cradle inside the low-voltage circuit breaker.
When the low-voltage circuit breaker is used, the support cylinder is fixed on the support positioned in the low-voltage circuit breaker, and one end of the spring in the energy storage unit in the low-voltage circuit breaker is inserted into the support cylinder and is abutted against the support plate; when the elastic potential energy of the spring in the energy storage unit is too large, firstly loosening the second nut, then screwing the first screw rod through the matching of the wrench and the boss, when the first screw rod is screwed, enabling the support plate to move towards the side far away from the spring, when the support plate moves towards the side far away from the spring, the elastic potential energy of the spring can be reduced (the spring can be stretched, so that the elastic potential energy of the spring can be reduced), and when the elastic potential energy of the spring is adjusted to be in a proper state, screwing the second nut again to enable the second nut and the support cylinder to be tightly combined; when the elastic potential energy of the spring in the energy storage unit is too small, firstly loosening the second nut, then screwing the first screw rod through the matching of the spanner and the boss, enabling the support plate to move towards one side close to the spring when the first screw rod is screwed, increasing the elastic potential energy of the spring after the support plate moves towards one side close to the spring (the spring can be compressed, so that the elastic potential energy of the spring can be increased), and screwing the second nut again to enable the second nut and the support cylinder to be tightly combined after the elastic potential energy of the spring is adjusted to be in a proper state; by the structure, the spring in the energy storage unit can be supported, and the elastic potential energy of the spring in the energy storage unit can be adjusted, so that the elastic potential energy of the spring can be adjusted to a proper state, and the working reliability of the energy storage unit in the low-voltage circuit breaker can be ensured.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. A spring support device for a low-voltage circuit breaker, characterized in that: the support device comprises a support cylinder (1) fixed on a support positioned in a low-voltage circuit breaker, wherein a containing cavity (11) with one open end and used for inserting one end of a spring is arranged in the support cylinder (1), and the open end of the containing cavity (11) faces one side of the support positioned in the low-voltage circuit breaker; the middle part of one end of the supporting cylinder (1) is provided with a first screw rod (2) which is coaxially arranged with the supporting cylinder (1) and is in threaded connection with the supporting cylinder (1), the outer end part of the first screw rod (2) is integrally formed with a lug boss (21) in a regular hexagon shape, and the inner end part of the first screw rod (2) is fixedly provided with a supporting plate (3) which is used for supporting the end part of a spring positioned in the supporting cylinder (1).
2. The spring supporting device for the low-voltage circuit breaker according to claim 1, wherein a second screw (22) with an outer diameter smaller than that of the first screw (2) is integrally formed on an inner end portion of the first screw (2), the second screw (22) is coaxially arranged with the first screw (2), the supporting plate (3) is sleeved outside the second screw (22), an annular step (23) for supporting the supporting plate (3) is formed at a joint of the second screw (22) and the first screw (2), and a first nut (4) for pressing the supporting plate (3) is in threaded connection with the second screw (22) on the inner side of the supporting plate (3).
3. The spring support device for low-voltage circuit breakers according to claim 1, characterized in that a second nut (5) screwed to the first screw (2) is sleeved on the first screw (2) outside said supporting cylinder (1), said second nut (5) being in abutment against the outer wall of the other end of the supporting cylinder (1).
4. The spring support device for low-voltage circuit breakers according to claim 1, characterized in that an annular chamfer (12) is provided on the inner wall of the open end of said housing (11), said annular chamfer (12) being adapted to cooperate with the outer wall of the spring for guiding so as to facilitate the retraction of the spring into the housing (11).
5. The spring supporting device for low-voltage circuit breaker according to claim 1, characterized in that an annular flange (13) is arranged on the outer wall of the other end of the supporting cylinder (1), a plurality of through holes (14) are uniformly distributed in the circumferential direction and arranged in the annular flange (13), and each through hole (14) is used for a bolt to pass through so as to fix the supporting cylinder (1) on the bracket inside the low-voltage circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122822068.6U CN216354018U (en) | 2021-11-17 | 2021-11-17 | Spring support device for low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122822068.6U CN216354018U (en) | 2021-11-17 | 2021-11-17 | Spring support device for low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216354018U true CN216354018U (en) | 2022-04-19 |
Family
ID=81149245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122822068.6U Active CN216354018U (en) | 2021-11-17 | 2021-11-17 | Spring support device for low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216354018U (en) |
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2021
- 2021-11-17 CN CN202122822068.6U patent/CN216354018U/en active Active
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