CN213401045U - Self-locking structure of molded case circuit breaker - Google Patents

Self-locking structure of molded case circuit breaker Download PDF

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Publication number
CN213401045U
CN213401045U CN202022716770.XU CN202022716770U CN213401045U CN 213401045 U CN213401045 U CN 213401045U CN 202022716770 U CN202022716770 U CN 202022716770U CN 213401045 U CN213401045 U CN 213401045U
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China
Prior art keywords
circuit breaker
case circuit
locking
bolt
molded case
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CN202022716770.XU
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Chinese (zh)
Inventor
刘月平
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Hager Electric Huizhou Co ltd
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Hager Electric Huizhou Co ltd
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Abstract

The utility model relates to a structure application technique among the machinery trade especially relates to be applied to moulded case circuit breaker's auto-lock structure. The plastic case circuit breaker comprises a plastic case circuit breaker face cover and a terminal cover matched with the plastic case circuit breaker, wherein a sliding chute for accommodating a locking part is arranged between the plastic case circuit breaker face cover and the terminal cover, and a clamping edge with a suspended bottom extends from the bottom end of the plastic case circuit breaker face cover close to the sliding chute; the locking piece is a bolt which is matched with the clamping edge to realize the locking function. The utility model discloses simplify the mould design degree of difficulty of terminal lid, reduce investment cost. The long-strip clamping hook on the bolt enables the installation to be in place to generate clicking sound, so that an installer can know the state of the bolt more visually. The whole operation is simple and convenient.

Description

Self-locking structure of molded case circuit breaker
Technical Field
The utility model relates to a structure application technique among the machinery trade especially relates to be applied to moulded case circuit breaker's auto-lock structure.
Background
After the terminal cover of the prior common molded case circuit breaker is matched with the bolt, the terminal cover is locked. Because the bolt does not have self-locking function, need design special construction on the terminal cover, make the terminal cover locked after the cooperation bolt. And whether the bolt is installed in place cannot be determined. And the disadvantage of the terminal cover and the bolt is that the special structure designed on the terminal cover makes the mould become complicated and the cost is increased. And whether the bolt is installed in place cannot be determined.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a technical problem provide a simple structure's moulded case circuit breaker's auto-lock structure.
In order to solve the technical problems, the technical scheme of the invention is as follows: a self-locking structure of a molded case circuit breaker comprises a molded case circuit breaker face cover and a terminal cover matched with the molded case circuit breaker, wherein a sliding groove for accommodating a locking part is arranged between the molded case circuit breaker face cover and the terminal cover, and a clamping edge with a suspended bottom extends from the bottom end of the molded case circuit breaker face cover close to the sliding groove; the locking piece is a bolt which is matched with the clamping edge to realize the locking function.
Further: in the self-locking structure of the molded case circuit breaker, the two clamping edges are symmetrically arranged.
The bolt include upper end application of force portion and the locking portion that links to each other with it, locking portion include the bellied strengthening rib in middle part and the rectangular pothook that sets up in strengthening rib bilateral symmetry. The main part of the long-strip hook is in the shape of a reinforcing rib, and only the protrusion at the lower end forms a flat hook. The bolt will click after being mounted in place, and the installer can know the state clearly.
The reinforcing rib is wide at the top and narrow at the bottom. The terminal cover lower extreme still be equipped with the briquetting that compresses tightly narrow end under the strengthening rib, bolt upper end application of force portion is equipped with the unlocking groove. If the terminal cover needs to be removed, a screwdriver is needed to be used for locking the locking groove of the bolt, and the bolt can be easily detached. The force application part at the upper end of the bolt is also provided with a lock bar hole, so that a lock bar can be further installed, and the bolt cannot be unlocked. The operator must remove the locking bar first, and then the screwdriver is on the locked groove of the bolt, just can remove the bolt. The side surface of the bolt locking part is integrally wedge-shaped, so that the bolt is easy to operate when sliding downwards.
Compared with the prior art, the self-locking structure of the molded case circuit breaker comprises a molded case circuit breaker face cover and a terminal cover matched with the molded case circuit breaker, wherein a chute for accommodating a locking piece is arranged between the molded case circuit breaker face cover and the terminal cover, and a clamping edge with a suspended bottom is extended from the bottom end of the molded case circuit breaker face cover close to the chute; the locking piece is a bolt which is matched with the clamping edge to realize the locking function. Simplify the mould design degree of difficulty of terminal lid, reduce investment cost. The long-strip clamping hook on the bolt enables the installation to be in place to generate clicking sound, so that an installer can know the state of the bolt more visually.
Drawings
Fig. 1 is a partially cut schematic enlarged view (before locking) of the self-locking structure of the molded case circuit breaker of the present invention;
fig. 2 is a schematic enlarged view (before locking) of a part of the self-locking structure of the molded case circuit breaker of the present invention;
FIG. 3 is a simplified diagram of the plug structure of the present invention;
fig. 4 is a partially cut schematic enlarged view (after locking) of the self-locking structure of the molded case circuit breaker of the present invention;
the plastic case circuit breaker comprises a face cover 1, a terminal cover 2, a clamping edge 3, a bolt 4, a reinforcing rib 41, a long-strip clamping hook 42, a unlocking groove 43, a locking strip hole 44 and a pressing block 5.
Detailed Description
To facilitate understanding for those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Referring to FIGS. 1-4: a self-locking structure of a molded case circuit breaker comprises a molded case circuit breaker face cover 1 and a terminal cover 2 matched with the molded case circuit breaker, wherein a sliding groove for accommodating a locking part is arranged between the molded case circuit breaker face cover 1 and the terminal cover 2, and a clamping edge 3 with a suspended bottom extends from the bottom end of the molded case circuit breaker face cover close to the sliding groove; the locking piece is a bolt 4 which is matched with the clamping edge to realize the locking function. The two clamping edges are symmetrically arranged. The bolt include upper end application of force portion and the locking portion that links to each other with it, locking portion include the bellied strengthening rib 41 in middle part and the rectangular pothook 42 that sets up in strengthening rib bilateral symmetry. The reinforcing rib is wide at the top and narrow at the bottom. And a pressing block 5 for pressing the lower narrow end of the reinforcing rib is further arranged at the lower end of the terminal cover. The force application part at the upper end of the bolt is provided with an unlocking groove 43. The force application part at the upper end of the bolt is also provided with a locking strip hole 44. The side surface of the bolt locking part is integrally wedge-shaped.
When the terminal cover is used practically, the plug pin is inserted into the guide groove after the terminal cover is installed on the molded case circuit breaker, in the process, the plug pin cannot interfere with the terminal cover and the molded case circuit breaker, and after the plug pin is inserted into the bottom of the guide groove, the plug pin has certain interference with the molded case circuit breaker. The bolt can slide into the chute of the molded case circuit breaker by pressing the bolt with force, and a click sound is given out. After the pin is installed, the terminal cover cannot be removed. If the terminal cover needs to be removed, a screwdriver is needed to be used for the groove of the plug pin, and the plug pin can be easily detached, so that the terminal cover is very convenient to use.
It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (8)

1. The utility model provides a moulded case circuit breaker's auto-lock structure, includes moulded case circuit breaker face lid (1), terminal cover (2) that match with moulded case circuit breaker, its characterized in that: a sliding groove for accommodating the locking part is arranged between the molded case circuit breaker surface cover (1) and the terminal cover (2), and a clamping edge (3) with a suspended bottom extends from the bottom end of the molded case circuit breaker surface cover close to the sliding groove; the locking piece is a bolt (4) which is matched with the clamping edge to realize the locking function.
2. The self-locking structure of the molded case circuit breaker according to claim 1, wherein: the two clamping edges are symmetrically arranged.
3. The self-locking structure of the molded case circuit breaker according to claim 2, wherein: the bolt include upper end application of force portion and the locking portion that links to each other with it, locking portion include bellied strengthening rib (41) in middle part and rectangular pothook (42) that set up in strengthening rib bilateral symmetry.
4. The self-locking structure of the molded case circuit breaker according to claim 3, wherein: the reinforcing rib is wide at the top and narrow at the bottom.
5. The self-locking structure of the molded case circuit breaker according to claim 4, wherein: and a pressing block (5) for pressing the lower narrow end of the reinforcing rib is further arranged at the lower end of the terminal cover.
6. The self-locking structure of the molded case circuit breaker according to claim 3, wherein: the force application part at the upper end of the bolt is provided with an unlocking groove (43).
7. The self-locking structure of the molded case circuit breaker according to claim 3, wherein: the force application part at the upper end of the bolt is also provided with a locking bar hole (44).
8. The self-locking structure of the molded case circuit breaker according to claim 3, wherein: the side surface of the bolt locking part is integrally wedge-shaped.
CN202022716770.XU 2020-11-20 2020-11-20 Self-locking structure of molded case circuit breaker Active CN213401045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022716770.XU CN213401045U (en) 2020-11-20 2020-11-20 Self-locking structure of molded case circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022716770.XU CN213401045U (en) 2020-11-20 2020-11-20 Self-locking structure of molded case circuit breaker

Publications (1)

Publication Number Publication Date
CN213401045U true CN213401045U (en) 2021-06-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022716770.XU Active CN213401045U (en) 2020-11-20 2020-11-20 Self-locking structure of molded case circuit breaker

Country Status (1)

Country Link
CN (1) CN213401045U (en)

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