CN218568746U

CN218568746U - Guide rail mounting and fixing structure of circuit breaker

Info

Publication number: CN218568746U
Application number: CN202222341945.2U
Authority: CN
Inventors: 李书贤; 黄叶浩; 胡朝武; 胡宇涛
Original assignee: Zhejiang Chint Electrics Co Ltd
Current assignee: Zhejiang Chint Electrics Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-03-03
Anticipated expiration: 2032-09-02

Abstract

The application discloses guide rail installation fixed knot of circuit breaker constructs, including circuit breaker body and retainer, the bottom one end of circuit breaker body is equipped with card portion, but retainer slidable mounting in on the bottom other end of circuit breaker body, and with form the bayonet socket that is used for fixed guide between the card portion, be equipped with on the rear portion top surface of retainer and end a boss, be equipped with on the bottom surface of circuit breaker body and end a boss matched with spacing groove, end a boss card and go into spacing inslot time limit retainer. The utility model discloses a guide rail installation fixed knot of circuit breaker constructs, and easy operation is dismantled in the installation is convenient, ends position boss and spacing groove cooperation, guarantees that the retainer is packed into behind the circuit breaker body, chucking reliably.

Description

Guide rail mounting and fixing structure of circuit breaker

Technical Field

The utility model relates to a low-voltage apparatus field, concretely relates to guide rail installation fixed knot of circuit breaker constructs.

Background

The circuit breaker mainly used industry, commercial, high-rise and various places such as civilian house play overload and short circuit protection effect, need fix the circuit breaker at the workplace through the casing earlier when using, for example the snap-on is on the guide rail of switch board, and the guide rail installation fixed knot of current circuit breaker constructs, and there is the installation and dismantles the operation complicacy, problem such as installation unstability, and it is inconvenient to use.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a guide rail installation fixed knot of circuit breaker that easy operation is dismantled in the installation constructs.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

guide rail installation fixed knot of circuit breaker constructs, including the retainer, the retainer assembles on the circuit breaker body, the bottom one end of circuit breaker body is equipped with card portion, but retainer slidable mounting in on the bottom other end of circuit breaker body, and with form the bayonet socket that is used for fixed guide between the card portion, be equipped with on the rear portion top surface of retainer and end a boss, be equipped with on the bottom surface of circuit breaker body and end a boss matched with spacing groove, end a boss card and go into spacing inslot time spacing retainer.

Preferably, be equipped with on the anterior top surface of retainer can with spacing groove complex spacing boss and the activity groove that can supply the activity of spacing boss, in the slidable mounting direction of retainer, the one end in the front of spacing boss is the link, the one end at back of spacing boss is the expansion end, the link of spacing boss is connected on the retainer, the expansion end perk of spacing boss just right with the activity groove.

Preferably, be equipped with in proper order along retainer installation direction on the bottom of circuit breaker body the spacing groove with dodge the groove, the spacing groove with dodge the groove and communicate mutually, and the groove top surface of spacing groove is higher than dodges the groove top surface in groove to form the spacing groove and dodge the step of being connected of groove junction.

Preferably, the stop piece is provided with two stop piece side walls which are symmetrically arranged, guide ribs are arranged on the inner sides of the stop piece side walls, and guide grooves which are in sliding fit with the guide ribs are arranged on two sides of the bottom of the circuit breaker body; the circuit breaker body is located between two retainer lateral walls, and the direction muscle card is gone into in the guide way and can be followed the guide way and slided.

Preferably, a limiting block is arranged between the front parts of the two side walls of the stopping piece, a limiting inclined plane used for being abutted to the guide rail is arranged at the front end of the limiting block, and the two sides of the limiting block are connected with the side walls of the stopping piece on the corresponding side through bent elastic ribs respectively.

Preferably, two sides of the limiting block are respectively connected with the side wall of the stop piece on the corresponding side through a reinforcing rib, and the reinforcing rib is positioned behind the elastic rib; the reinforcing rib is curved, and the degree of curvature of elasticity muscle is greater than the degree of curvature of reinforcing rib.

Preferably, a lower pressing block is arranged between the two side walls of the retainer, the stop boss is arranged on the top surface of the lower pressing block, the front end of the lower pressing block is connected between the two side walls of the retainer, and the rear end of the lower pressing block extends outwards and protrudes out of the side walls of the retainer.

Preferably, the width of the front end of the lower pressing block is larger than that of the rear end of the lower pressing block, and an operation boss is arranged on the top surface of the rear end of the lower pressing block; the rear end of two retainer lateral walls extends to the direction that is close to each other respectively and forms spacing lateral wall, forms the spacing breach that can supply the rear end of briquetting to wear out down between two spacing lateral walls, connects through the splice bar between two spacing lateral walls, the splice bar is the U-shaped, and both ends correspond to be connected on the outside of two spacing lateral walls and surround the rear end of briquetting down.

Preferably, the front end of the stop boss is provided with a guide inclined plane, and the guide inclined plane is gradually inclined downwards along the installation direction of the stop piece.

Preferably, the retainer is integrally injection-molded, a first clamping groove matched with one end of the guide rail is formed in the clamping portion of the circuit breaker body, and a second clamping groove matched with the other end of the guide rail is formed in the front end of the retainer.

The utility model discloses a guide rail installation fixed knot of circuit breaker constructs, and easy operation is dismantled in the installation convenient, ends a boss and spacing groove cooperation, guarantees that the retainer is packed into behind the circuit breaker body, chucking reliably.

In addition, the guide rail mounting and fixing structure does not need a spring, and the retainer is integrally formed by injection molding, so that the cost is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the circuit breaker of the present invention;

fig. 2 is a schematic view of the circuit breaker with the stop of the present invention installed;

fig. 3 is a schematic structural view of the circuit breaker body of the present invention;

figure 4 is a top perspective view of the stop of the present invention;

fig. 5 is a bottom perspective view of the stop of the present invention;

fig. 6 is a schematic structural view of the guide rail of the present invention;

fig. 7 is a schematic view of the rail mounting operation of the present invention;

fig. 8 is a schematic view of the first step of the rail removal operation of the present invention;

fig. 9 is a schematic diagram of the second step of the rail detaching operation according to the present invention.

Detailed Description

The following provides an embodiment of a guide rail mounting and fixing structure of a circuit breaker according to the present invention with reference to the accompanying drawings. The utility model discloses a guide rail installation fixed knot of circuit breaker constructs is not limited to the description of following embodiment.

As shown in fig. 1-5, the utility model discloses a guide rail installation fixed knot of circuit breaker constructs, including retainer 2, retainer 2 assembles on circuit breaker body 1, the bottom one end of circuit breaker body 1 is equipped with card portion 10, but retainer 2 slidable mounting in on circuit breaker body 1's the bottom other end, and with form the bayonet socket 100 that is used for fixed guide 3 between the card portion 10, be equipped with on the rear portion top surface of retainer 2 and end a boss 26, be equipped with on the bottom surface of circuit breaker body 1 and end a boss 26 matched with spacing groove 12, end a boss 26 card is gone into spacing retainer 2 when spacing 12 is interior, makes retainer 2 can not slide. When the circuit breaker is installed, the retainer 2 slides on the circuit breaker body 1 towards the clamping part 10 until the stop boss 26 is clamped into the limiting groove 12, at the moment, the retainer 2 cannot slide on the circuit breaker body 1, and then the guide rail 3 is clamped into the bayonet 100; when the circuit breaker is disassembled, the stop boss 26 is firstly separated from the limiting groove 12, the retainer 2 reversely slides on the circuit breaker body 1 to the retainer 2 to remove the fixation of the guide rail 3, and the circuit breaker can be easily disassembled from the guide rail 3. The utility model discloses a guide rail installation fixed knot of circuit breaker constructs, and easy operation is dismantled in the installation is convenient, ends a boss 26 and the cooperation of spacing groove 12, guarantees that retainer 2 packs into circuit breaker body 1 after, can reliable chucking. Note that, in the slide-mounting direction of the stopper 2, the front is the front/front end, and the rear is the rear/rear end.

As shown in fig. 3-5, the stopper 2 of the present embodiment has two stopper side walls 20 symmetrically arranged, guide ribs 22 are provided on the inner sides of the stopper side walls 20, and guide grooves 11 slidably engaged with the guide ribs 22 are provided on both sides of the bottom of the circuit breaker body 1; the circuit breaker body 1 is located between two stopper side walls 20, an assembly space is formed between the two stopper side walls 20, the assembly space is used for avoiding the bottom surface of the circuit breaker body 1, and the guide rib 22 is clamped in the guide groove 11 and can slide along the guide groove 11. The guiding rib 22 can slide on the guiding groove 11, and the size of the bayonet 100 for fixing the guide rail 3 can be changed at will, so that the installation is convenient, the convenient disassembly and the convenient arrangement on the installation guide rail 3 can be realized, and the structure is simple.

As shown in fig. 4-5, a limiting block 21 is disposed between the front portions of the two stopper side walls 20, a limiting inclined surface 211 for abutting against the guide rail 3 is disposed at the front end of the limiting block 21, and both sides of the limiting block 21 are connected to the corresponding stopper side walls 20 through bent elastic ribs 23. The front end of the stop piece 2 is provided with a limit inclined surface 211 which is convenient for clamping the guide rail 3. The elastic ribs 23 provide elasticity required by installation, and installation firmness is guaranteed. Furthermore, two sides of the limiting block 21 are connected with the corresponding side wall 20 of the stopping element through reinforcing ribs 24, and the reinforcing ribs 24 are located behind the elastic ribs 23. Preferably, the reinforcing rib 24 is curved, and the degree of curvature of the elastic rib 23 is greater than that of the reinforcing rib 24. The reinforcing ribs 24 are distributed on the two sides of the limiting block 21 in a bilateral symmetry mode and are located behind the elastic ribs 23, and strength and assembling and disassembling reliability of the retainer 2 are improved.

As shown in fig. 3-4, be equipped with on the stopper 21 top surface that is located the anterior stopper of stopper 2 can with spacing boss 25 of spacing groove 12 complex and can supply the activity groove 212 of spacing boss 25 activity, in stopper 2 slidable mounting direction, the one end in the front of spacing boss 25 is the link, the one end at back of spacing boss 25 is the expansion end, the link of spacing boss 25 is connected on stopper 2, specifically connects on the lateral wall of activity groove 212, the expansion end perk of spacing boss 25 just right with activity groove 212. Spacing boss 25 can play limiting displacement with spacing groove 12 cooperation, provides the effort towards the circuit breaker bottom surface, guarantees that the circuit breaker dismantles the in-process and can not fall out.

Specifically, be located on the bottom of circuit breaker body 1 and be equipped with in proper order along stopper 2 installation direction between two guide way 11 spacing groove 12 with dodge groove 14, spacing groove 12 with dodge groove 14 and be linked together, and the groove top surface of spacing groove 12 is higher than the groove top surface of dodging groove 14 to form spacing groove 12 and dodge the step 13 of being connected of groove 14 junction. The guide rib 22 of the retainer 2 is clamped into the guide groove 11, in the installation process of inward sliding of the retainer 2, because the limiting boss 25 has elasticity, and the connecting end and the movable end of the limiting boss 25 are arranged in front and behind, the movable end of the limiting boss 25 is compressed to enter the movable groove 212, the limiting boss 25 successfully enters the limiting groove 12, then the retainer 2 continuously slides inward, and the limiting boss 25 slides along the avoiding groove 14; in the dismantlement in-process of stopper 2 outside gliding, spacing boss 25 is keeping away groove 14 and outwards slideing, gets into spacing groove 12 until crossing connection step 13, because stopper 2 reverse motion, the expansion end of spacing boss 25 is preceding, the link is back, spacing cooperation with spacing groove 12 behind the spacing boss 25 reconversion to can't run out from spacing groove 12. The avoiding groove 14 is mainly used for avoiding the limiting boss 25, and the interference of the retainer 2 with the circuit breaker in the inward sliding process is avoided.

As shown in fig. 3 to 4, a hold-down piece 27 for assisting detachment is provided between the two stopper side walls 20, the stop boss 26 is provided on the top surface of the hold-down piece 27, the protruding direction of the stop boss 26 is substantially perpendicular to the sliding direction of the stopper 2, the front end of the hold-down piece 27 is connected between the two stopper side walls 20, and the rear end of the hold-down piece 27 extends outward and protrudes from the stopper side walls 20; when the retainer 2 slides to the stop boss 26 and is clamped into the limit groove 12, the lower pressing block 27 protrudes out of the end side edge of the circuit breaker body 1. When the tool is used for dismounting, the pressing block 27 is pressed downwards, so that the stop boss 26 can be separated from the limiting groove 12, and the dismounting function is realized. Specifically, the front end width of the lower pressing block 27 is greater than the rear end width, and an operation boss 271 is arranged on the top surface of the rear end of the lower pressing block 27; the rear ends of the two retainer side walls 20 extend to the direction close to each other respectively to form limiting side walls 201, limiting notches for the rear ends of the lower pressing blocks 27 to penetrate out are formed between the two limiting side walls 201, the two limiting side walls 201 are connected through connecting ribs 202, the connecting ribs 202 are U-shaped, and the two ends of the connecting ribs are correspondingly connected to the outer sides of the two limiting side walls 201 and surround the rear ends of the lower pressing blocks 27. This structural design both conveniently dismantles the operation, also can guarantee the overall structure intensity of retainer 2, and retainer 2 can be installed on circuit breaker body 1 steadily firmly. Further, the front end of the stop boss 26 is provided with a guide slope 261, and the guide slope 261 is gradually inclined downward in the installation direction of the stopper 2. The stop boss 26 is guided to enter the limiting groove 12, so that the assembly difficulty is reduced, and the installation is convenient.

As shown in fig. 1 and 6, the guide rail 3 is shaped like a Chinese character 'ji', a first engaging groove 101 which is engaged with one end of the guide rail 3 is provided on the engaging portion 10 of the circuit breaker body 1, and a second engaging groove 28 which is engaged with the other end of the guide rail 3 is provided on the front end of the stopper 2; the guide rail 3 is clamped into the bayonet 100, and two ends of the guide rail 3 are respectively clamped into the first clamping groove 101 and the second clamping groove 28. The elastic force of the retainer 2 can be adjusted by the length of the second clamping groove 28, so that different elastic forces required by product installation can be provided. The guide rail mounting and fixing structure of the embodiment does not need a spring, and the retainer 2 is integrally formed by injection molding, so that the cost is reduced.

In the process of installing the guide rail of the circuit breaker, firstly, the guide rib 22 of the retainer 2 is clamped into the guide groove 11 and slides towards the clamping part 10 along the guide groove 11 until the stop boss 26 is clamped into the limit groove 12, the retainer 2 is locked on the circuit breaker body 1, and the assembly of the retainer 2 is completed; then, the first card slot 101 of the circuit breaker body 1 is snapped into the guide rail 3 (step (1) shown in fig. 7); and then, the front surface of the circuit breaker body 1 is held by hand and is pressed downwards forcibly (step (2) shown in fig. 7), and the second clamping groove 28 of the retainer 2 is clamped into the guide rail 3, so that the circuit breaker is installed and fixed on the guide rail 3.

In the process of disassembling the guide rail of the circuit breaker of the present invention, first, a tool is inserted into the operation boss 271 of the stop member 2, and is pressed downward with force (step (1) shown in fig. 8), so that the press block 27 is pressed downward and deformed, and the stop boss 26 is disengaged from the limit groove 12; then, the stopper 2 is pushed to slide on the breaker body 1 (step (2) shown in fig. 8); finally, as shown in fig. 9, the breaker is taken out of the guide rail 3, and the disassembly is completed.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship that is usually placed when used, and are only for convenience of description, but do not indicate that the device or element that is referred to must have a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. Guide rail installation fixed knot of circuit breaker constructs, including retainer (2), retainer (2) assemble on circuit breaker body (1), the bottom one end of circuit breaker body (1) is equipped with card portion (10), retainer (2) slidable mounting in on the bottom other end of circuit breaker body (1), and with form bayonet socket (100) that are used for fixed guide (3) between card portion (10), its characterized in that: be equipped with on the rear portion top surface of retainer (2) and end a boss (26), be equipped with on the bottom surface of circuit breaker body (1) and end a boss (26) matched with spacing groove (12), end spacing retainer (2) when boss (26) card income spacing groove (12).

2. The rail mounting fixing structure of a circuit breaker according to claim 1, wherein: be equipped with on the anterior top surface of stopper (2) can with spacing groove (12) complex spacing boss (25) and activity groove (212) that can supply spacing boss (25) to move about, on the slidable mounting direction of stopper (2), spacing boss (25) one end in the front is the link, spacing boss (25) one end at the back is the expansion end, the link of spacing boss (25) is connected on stopper (2), the expansion end perk of spacing boss (25) just right with activity groove (212).

3. The guide rail mounting and fixing structure of a circuit breaker according to claim 2, wherein: be equipped with in proper order along stopper (2) installation direction on the bottom of circuit breaker body (1) spacing groove (12) with dodge groove (14), spacing groove (12) with dodge groove (14) and be linked together, and the groove top surface of spacing groove (12) is higher than the groove top surface of dodging groove (14) to form spacing groove (12) and dodge connection step (13) of groove (14) junction.

4. The guide rail mounting and fixing structure of a circuit breaker according to claim 1, wherein: the circuit breaker comprises a circuit breaker body (1) and a stop piece (2), wherein the circuit breaker body is provided with two stop piece side walls (20), the two stop piece side walls (20) are symmetrically arranged, guide ribs (22) are arranged on the inner sides of the stop piece side walls (20), and guide grooves (11) which are in sliding fit with the guide ribs (22) are arranged on two sides of the bottom of the circuit breaker body (1); the breaker body (1) is positioned between two retainer side walls (20), and the guide rib (22) is clamped into the guide groove (11) and can slide along the guide groove (11).

5. The guide rail mounting and fixing structure of a circuit breaker according to claim 4, wherein: be equipped with stopper (21) between the front portion of two retainer lateral walls (20), the front end of stopper (21) is equipped with spacing inclined plane (211) that are used for butt guide rail (3), the both sides of stopper (21) are connected with the retainer lateral wall (20) that correspond the side through crooked elastic muscle (23) respectively.

6. The rail mounting fixing structure of a circuit breaker according to claim 5, wherein: two sides of the limiting block (21) are also respectively connected with the side wall (20) of the stopping piece on the corresponding side through a reinforcing rib (24), and the reinforcing rib (24) is positioned behind the elastic rib (23); the reinforcing ribs (24) are bent, and the bending degree of the elastic ribs (23) is greater than that of the reinforcing ribs (24).

7. The rail mounting fixing structure of a circuit breaker according to claim 4, wherein: be equipped with briquetting (27) down between two retainer lateral walls (20), stop boss (26) and set up on briquetting (27)'s top surface down, briquetting (27) are connected between two retainer lateral walls (20) down to the front end, briquetting (27)'s rear end outwards extends and protrusion in retainer lateral wall (20).

8. The rail mounting fixing structure of a circuit breaker according to claim 7, wherein: the front end width of the lower pressing block (27) is larger than the rear end width, and an operation boss (271) is arranged on the top surface of the rear end of the lower pressing block (27); the rear end of two retainer lateral walls (20) extends to the direction that is close to each other respectively and forms spacing lateral wall (201), forms the spacing breach that can supply the rear end of briquetting (27) to wear out down between two spacing lateral walls (201), connects through splice bar (202) between two spacing lateral walls (201), splice bar (202) are the U-shaped, and both ends correspondence is connected on the outside of two spacing lateral walls (201) and is encircleed the rear end of briquetting (27) down.

9. The rail mounting fixing structure of a circuit breaker according to claim 1, wherein: the front end of the stopping boss (26) is provided with a guide inclined plane (261), and the guide inclined plane (261) gradually inclines downwards along the installation direction of the stop piece (2).

10. The rail mounting fixing structure of a circuit breaker according to any one of claims 1 to 9, wherein: the integrated injection molding of the retainer (2), a first clamping groove (101) matched with one end of the guide rail (3) is arranged on a clamping portion (10) of the circuit breaker body (1), and a second clamping groove (28) matched with the other end of the guide rail (3) is arranged at the front end of the retainer (2).