CN217822442U - Casing structure of leakage protector - Google Patents

Abstract

The utility model relates to a shell structure of a leakage protector, which comprises a left cover plate and a right cover plate, wherein a left positioning plate is formed at the top of the left cover plate, a right positioning plate is formed at the top of the right cover plate, an upper cover plate is arranged between the left positioning plate and the right positioning plate, the upper cover plate comprises a top plate, a left side plate, a right side plate, a front side plate and a rear side plate, and the front side plate and the left cover plate, the right cover plate and the rear side plate are fixedly connected with the left cover plate and the right cover plate; the contact part of the left positioning plate and the left side plate is positioned inside the left side plate, and the contact part of the right positioning plate and the right side plate is positioned inside the right side plate. The split type printing machine has the advantages that the split type printing machine has the advantages of split type structure, can be assembled and installed according to requirements, has the advantages of integral type structure, is compact in structure and facilitates printing of characters due to the fact that the appearance of the top of the split type printing machine is free of seams; has the advantages of simple structure and low cost.

Description

Casing structure of leakage protector

Technical Field

The utility model belongs to the technical field of the circuit breaker technique and specifically relates to a earth-leakage protector's shell structure to circuit breaker is related to.

Background

The leakage protector, called leakage switch for short, is usually used in combination with a circuit breaker, mainly used for protecting the human body from electric shock when the equipment has leakage fault and fatal danger, has the functions of overload and short circuit protection, can be used for protecting the overload and short circuit of a line or a motor, and can also be used for the infrequent switching and starting of the line under normal conditions.

The leakage protector used for the circuit breaker at present usually has two forms, the first one is a combined type, the combination is carried out through a left shell and a right shell or through the left shell, the right shell and a middle shell, the method has the advantages that the number of the middle shells can be increased randomly to adjust according to different required models, the use is very convenient, but because all the types are combined, the top surface of the leakage protector is spliced by the shells, splicing seams can be generated, the attractiveness is influenced, and characters printed on the top surface of the leakage protector are inconvenient; the second kind is integral, and left casing, middle casing and right casing integrated into one piece promptly, and its main advantage is compact structure, is difficult to in disorder, conveniently prints simultaneously, and its shortcoming is that the earth-leakage protector of the different models need be makeed to the circuit breaker of different models, and cost will greatly increased in process of production.

Disclosure of Invention

The utility model aims to solve the technical problem that a shell structure of earth leakage protector that can realize the equipment and can improve the compactedness is provided.

The utility model provides a technical scheme that its technical problem adopted is: a shell structure of a leakage protector comprises a left cover plate and a right cover plate, wherein the left cover plate and the right cover plate are combined to form a cavity for accommodating electrical components, the top of the left cover plate extends upwards to form a left positioning plate, the top of the right cover plate extends upwards to form a right positioning plate, an upper cover plate is arranged between the left positioning plate and the right positioning plate, the upper cover plate comprises a top plate, a left side plate, a right side plate, a front side plate and a rear side plate, the left side plate is located on the left side of the top plate and matched with the left positioning plate, the right side plate is located on the right side of the top plate and matched with the right positioning plate, the front side plate is located on the front side of the top plate, the rear side plate is located on the rear side of the top plate, and the front side plate, the left cover plate, the right cover plate and the rear side plate are fixedly connected with the left cover plate and the right cover plate; the position of left side locating plate and left side board contact is located the left side inboard, the position of right side locating plate and right side board contact is located the right side inboard.

More specifically, an upward concave left positioning groove is formed in the bottom of the left side plate, the left positioning plate is inserted into the left positioning groove, and the shapes of the left positioning plate and the left positioning groove are matched; the bottom of the right side plate is provided with a right positioning groove which is concave upwards, the right positioning plate is inserted into the right positioning groove, and the shapes of the right positioning plate and the right positioning groove are matched.

Further specifically, the contact position of the left positioning plate and the left side plate is step-shaped, and the contact position of the right positioning plate and the right side plate is step-shaped.

Further specifically, fixed connection is carried out through buckle and draw-in groove between preceding curb plate and left side apron, the right side apron and between posterior lateral plate and left side apron, the right side apron.

More specifically, the buckles are arranged at the bottom ends of the front side plate and the rear side plate, and the clamping grooves are arranged inside the left cover plate and the right cover plate; or, the buckle sets up on left side apron and right side apron, the draw-in groove sets up in the inside of preceding curb plate and posterior lateral plate.

It is further specific be provided with left reference column on the left side apron the tip that left reference column is close to right side apron forms left location arch be provided with right reference column on the right side apron the tip that right reference column is close to left side apron inwards forms right positioning groove, left side location arch can insert in the right positioning groove.

Further specifically, be provided with left through-hole on the left side reference column set up right through-hole on the right side reference column, left side location arch inserts right positioning groove back, left side through-hole and right through-hole intercommunication it is fixed to insert the screw in left side through-hole and the right through-hole.

Further specifically, a middle cover plate is arranged between the left cover plate and the right cover plate, and at least one middle cover plate is arranged, so that the space of the cavity can be increased by the middle cover plate.

Further specifically, a first middle positioning column is arranged on one side, close to the left cover plate, of the middle cover plate, a middle positioning groove is formed inwards at the end part, close to the left cover plate, of the first middle positioning column, a second middle positioning column is arranged on one side, close to the right cover plate, of the middle cover plate, and a middle positioning bulge is formed at the end part, close to the right cover plate, of the second middle positioning column; the middle positioning groove is matched with the middle positioning bulge or the left positioning bulge on the adjacent middle cover plate; the middle positioning bulge is matched with the middle positioning groove or the right positioning groove on the adjacent middle cover plate.

More specifically, the axes of the first middle positioning column and the second middle positioning column coincide; and a middle through hole penetrating through the first middle positioning column and the second middle positioning column is arranged on the axle center of the first middle positioning column and the second middle positioning column, and a screw can sequentially penetrate through the hole on the left cover plate, the middle through hole and the hole on the right cover plate to be fixed.

The utility model has the advantages that: the split type printing machine has the advantages that the split type printing machine has the advantages of split type structure, can be assembled and installed according to requirements, has the advantages of integral type structure, is compact in structure and facilitates printing of characters due to the fact that the appearance of the top of the split type printing machine is free of seams; simultaneously, compared with the integral structure, the structure has the advantages of simple structure and cost reduction.

Drawings

Fig. 1 is a schematic structural view of a casing of the leakage protector of the present invention;

fig. 2 and 3 are schematic structural views of the upper cover plate of the present invention;

fig. 4 and 5 are schematic structural views of the left cover plate of the present invention;

fig. 6 and 7 are schematic structural views of the right cover plate of the present invention;

fig. 8 and 9 are schematic structural views of the middle cover plate of the present invention.

In the figure: 1. a left cover plate; 2. a right cover plate; 3. an upper cover plate; 4. a middle cover plate; 5. step-shaped; 11. a left substrate; 12. a left connecting plate; 13. a left positioning plate; 14. a left locating post; 15. a left positioning projection; 16. a left through hole; 21. a right substrate; 22. a right connecting plate; 23. a right positioning plate; 24. a right positioning column; 25. a right positioning groove; 26. a right through hole; 31. a top plate; 32. a left side plate; 33. a right side plate; 34. a front side plate; 35. a rear side plate; 36. a left positioning groove; 37. a right positioning groove; 38. buckling; 41. an intermediate substrate; 42. a first intermediate connecting plate; 43. a second intermediate connecting plate; 44. a first middle positioning column; 45. a middle positioning groove; 46. a second middle positioning column; 47. a middle positioning bulge; 48. a middle through hole.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

1-9, the casing structure of the earth leakage protector comprises a left cover plate 1 and a right cover plate 2, the left cover plate 1 and the right cover plate 2 can be combined to form a cavity for accommodating electrical components, the left cover plate 1 comprises a left base plate 11 and a left connecting plate 12 formed by extending from the left base plate 11 to the right, the right cover plate 2 comprises a right base plate 21 and a right connecting plate 22 formed by extending from the right base plate 21 to the left, and the cavity can be formed by the matching of the left connecting plate 12 and the right connecting plate 22; the top of the left cover plate 1 extends upwards to form a left positioning plate 13, the top of the right cover plate 2 extends upwards to form a right positioning plate 23, an upper cover plate 3 is arranged between the left positioning plate 13 and the right positioning plate 23, the upper cover plate 3 comprises a top plate 31, a left side plate 32 which is positioned on the left side of the top plate 31 and matched with the left positioning plate 13, a right side plate 33 which is positioned on the right side of the top plate 31 and matched with the right positioning plate 23, a front side plate 34 which is positioned on the front side of the top plate 31 and a rear side plate 35 which is positioned on the rear side of the top plate 31, the front side plate 34, the left cover plate 1, the right cover plate 2 and the rear side plate 35 are fixedly connected with the left cover plate 1 and the right cover plate 2, namely the front side plate 34 spans over the left cover plate 1 and the right cover plate 2, and the rear side plate 35 spans over the left cover plate 1 and the right cover plate 2; the contact part of the left positioning plate 13 and the left side plate 32 is positioned inside the left side plate 32, the contact part of the right positioning plate 23 and the right side plate 33 is positioned inside the right side plate 33, the left positioning plate 13 is positioned through the left side plate 32, and the right positioning plate 23 is positioned through the right side plate 33; wherein, the upper cover plate 3 is an integrated structure, after the installation, the left cover plate 1 and the right cover plate 2 are combined together, and the upper cover plate 3 is buckled on the left cover plate 1 and the right cover plate 2 and is an integral structure.

In order to improve the tightness of the combination between the upper cover plate 3 and the left and right cover plates 1 and 2 and the stability of the fixation, an upwardly concave left positioning groove 36 is arranged at the bottom of the left side plate 32, the left positioning plate 13 is inserted into the left positioning groove 36, and the shapes of the left positioning plate 13 and the left positioning groove 36 are matched with each other; right side board 33 bottom is provided with to the right constant head tank 37 of upwardly concave, right side locating plate 23 inserts in the right constant head tank 37 and right locating plate 23 matches with right constant head tank 37 shape each other, left side board 32, right side board 33 and left locating plate 13, the cooperation of right locating plate 23, can make upper cover plate 3, left side apron 1, right side apron 2 fix a position in the left and right direction, left side locating plate 13 and left constant head tank 36, the cooperation between right locating plate 23 and the right constant head tank 37, can make upper cover plate 3, left side apron 1, right side apron 2 fix a position in the front and back direction.

Meanwhile, the contact position of the left positioning plate 13 and the left side plate 32 is set to be step-shaped 5, and the contact position of the right positioning plate 23 and the right side plate 33 is also set to be step-shaped 5; through the matching of the step-shaped 5 structure, the inner wall and the outer wall of the left positioning plate 13 and the left side plate 32 are flush, and the inner wall and the outer wall of the right positioning plate 23 and the right side plate 33 are flush; can ensure that the appearance is integrally smooth and beautiful, and also has the function of positioning.

The front side plate 34 is fixed with the left cover plate 1 and the right cover plate 2 through the buckles 38 and the clamping grooves, the buckles 38 and the clamping grooves can be in two modes according to positions of the buckles 38 and the clamping grooves, the first mode is that the buckles 38 are arranged at the bottom ends of the front side plate 34 and the rear side plate 35 and extend downwards, the clamping grooves are arranged inside the left cover plate 1 and the right cover plate 2, and the buckles 38 are inserted into the left cover plate 1 and the right cover plate 2 from the upper side and are matched with the clamping grooves in the left cover plate 1 and the right cover plate 2; secondly, the buckles are arranged on the left cover plate 1 and the right cover plate 2, the clamping grooves are arranged inside the front side plate 34 and the rear side plate 35, and the buckles are inserted into the front side plate 34 and the rear side plate 35 from the lower part and are matched with the clamping grooves in the front side plate and the rear side plate; the cooperation of buckle and draw-in groove realizes upper cover plate 3 location in upper and lower direction and fixes.

Further, in order to conveniently position and fix the left cover plate 1 and the right cover plate 2, a left positioning column 14 is arranged on the left cover plate 1, a left positioning protrusion 15 is formed at the end part, close to the right cover plate 2, of the left positioning column 14, a right positioning column 24 is arranged on the right cover plate 2, a right positioning groove 25 is formed at the end part, close to the left cover plate 1, of the right positioning column 24, and the positioning protrusion 15 can be inserted into the right positioning groove 25, so that rapid positioning and installation can be realized; four left positioning columns 14 and four right positioning columns 24 are arranged and need to be aligned, and can be arranged according to the inner space of the positioning columns; meanwhile, after positioning, the left cover plate 1 and the right cover plate 2 need to be fixedly connected through screws, so that a left through hole 16 is formed in the center of the left positioning column 14, a right through hole 26 is formed in the center of the right positioning column 24, after the left positioning protrusion 15 is inserted into the right positioning groove 25, the left through hole 16 is communicated with the right through hole 26, the screws are inserted into the left through hole 16 from the right through hole 26, one end of the left through hole 16 is fixedly connected with the screws through nuts, and the screws are screwed to fix the left cover plate 1 and the right cover plate 2.

Based on the structure, in order to increase the length of the earth leakage protector according to the requirement, an intermediate cover plate 4 is arranged between the left cover plate 1 and the right cover plate 2, the intermediate cover plate 4 is a module which can increase the number according to the requirement, has the same structure and can be repeated, and in use, at least one intermediate cover plate 4 increases the space of the chamber by increasing the number of the intermediate cover plates 4; the intermediate cover 4 includes an intermediate base plate 41, and a first intermediate connecting plate 42 and a second intermediate connecting plate 43 extending from the intermediate base plate 41 to both sides.

A first middle positioning column 44 is arranged on one side of the middle cover plate 4 close to the left cover plate 1, a middle positioning groove 45 is formed inwards at the end part of the first middle positioning column 44 close to the left cover plate 1, a second middle positioning column 46 is arranged on one side of the middle cover plate 4 close to the right cover plate 2, and a middle positioning bulge 47 is formed at the end part of the second middle positioning column 46 close to the right cover plate 2; the middle positioning groove 45 is matched with a middle positioning bulge 47 or a left positioning bulge 15 on the adjacent middle cover plate 4; the middle positioning protrusion 47 is matched with the middle positioning groove 45 or the right positioning groove 25 on the adjacent middle cover plate 4.

The single middle cover plate 4 is installed by inserting the middle positioning protrusion 47 and the middle positioning groove 45 corresponding to the middle cover plate 4 into the corresponding left cover plate 1 and right cover plate 2.

The installation manner of the two or more middle cover plates 4 is basically the same, and the installation manner is described below by taking the installation of the two middle cover plates 4 as an example, and the two middle cover plates 4 are respectively a middle cover plate a and a middle cover plate B.

The earth-leakage protector from left to right is left side apron 1, middle apron A, middle apron B and right side apron 2 in proper order, and the protruding 15 of left location on the left side apron 1 inserts middle apron A's middle positioning groove A, and the protruding A of middle location of middle apron A inserts middle apron B's middle positioning groove B, and the protruding B of middle location of middle apron B inserts right positioning groove 25 on the right side apron 2, accomplishes whole installation.

Further, in order to facilitate the screw fixation, the axes of the first middle positioning column 44 and the second middle positioning column 46 are overlapped; a middle through hole 48 penetrating through the first middle positioning column 44 and the second middle positioning column 46 is provided on the axial center of the first middle positioning column 44 and the second middle positioning column 46, and after the mounting is completed, the left through hole 16, the middle through hole 48 and the right through hole 26 are communicated, and can be fixed by a nut through the right through hole 26, the middle through hole 48 and the left through hole 16 in sequence by screws.

When the left cover plate 1, the right cover plate 2 and the middle cover plate 4 are matched, only the upper cover plate 3 needs to be replaced according to the increased specific length, the size of the upper cover plate 3 can be made into various specifications, and the upper cover plates 3 with different specifications are selected according to different lengths.

In conclusion, the shell adopts a split structure, the middle cover plate 4 can be added according to the actual state to increase the cavity for increasing the space for bearing the electric appliance element, and the upper part of the split shell is covered by the integrated upper cover plate 3 structure and has the functions of positioning and fixing, so that the shell structure has the advantages of the split shell, the cavity space can be increased according to the requirement, and the shell structure has the advantages of an integral shell, the upper cover plate 3 is integrated, has no seam, is convenient for font printing, and can be more compact; adopt split type casing to combine 3 structures of integral type upper cover plate, for integral shell structure, greatly reduced the cost of manufacture to the installation is nimble convenient.

It is to be emphasized that: the above is only a preferred embodiment of the present invention, and the present invention is not limited to any form, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention are all within the scope of the technical solution of the present invention.

Claims (10)

1. A shell structure of a leakage protector comprises a left cover plate (1) and a right cover plate (2), wherein the left cover plate (1) and the right cover plate (2) are combined to form a cavity for accommodating electrical elements, and is characterized in that a left positioning plate (13) is formed by upwards extending the top of the left cover plate (1), a right positioning plate (23) is formed by upwards extending the top of the right cover plate (2), an upper cover plate (3) is arranged between the left positioning plate (13) and the right positioning plate (23), the upper cover plate (3) comprises a top plate (31), a left side plate (32) which is positioned at the left side of the top plate (31) and matched with the left positioning plate (13), a right side plate (33) which is positioned at the right side of the top plate (31) and matched with the right positioning plate (23), a front side plate (34) which is positioned at the front side of the top plate (31) and a rear side plate (35) which is positioned at the rear side of the top plate (31), and the front side plate (34) and the left cover plate (1), the right cover plate (2) and the rear side plate (35) are fixedly connected with the left cover plate (1) and the right cover plate (2); the contact part of the left positioning plate (13) and the left side plate (32) is positioned inside the left side plate (32), and the contact part of the right positioning plate (23) and the right side plate (33) is positioned inside the right side plate (33).

2. A casing structure of the earth leakage protector as claimed in claim 1, wherein a left positioning groove (36) is provided at the bottom of the left side plate (32), the left positioning plate (13) is inserted into the left positioning groove (36) and has a shape matching with the left positioning groove; the bottom of the right side plate (33) is provided with a right positioning groove (37) which is concave upwards, and the right positioning plate (23) is inserted into the right positioning groove (37) and the shapes of the right positioning groove and the right positioning plate are matched.

3. The casing structure of the earth-leakage protector according to claim 1 or 2, wherein the contact position of the left positioning plate (13) and the left side plate (32) is step-shaped (5), and the contact position of the right positioning plate (23) and the right side plate (33) is step-shaped (5).

4. The casing structure of the earth leakage protector according to claim 1, wherein the front side plate (34) and the left cover plate (1) and the right cover plate (2) as well as the rear side plate (35) and the left cover plate (1) and the right cover plate (2) are fixedly connected with the clamping grooves through the fasteners (38).

5. The casing structure of the earth-leakage protector as claimed in claim 4, wherein the fasteners (38) are disposed at the bottom end of the front side plate (34) and the bottom end of the rear side plate (35), and the locking slots are disposed inside the left cover plate (1) and the right cover plate (2); or the buckle is arranged on the left cover plate (1) and the right cover plate (2), and the clamping groove is arranged inside the front side plate (34) and the rear side plate (35).

6. The casing structure of the leakage protector as claimed in claim 1, wherein a left positioning post (14) is disposed on the left cover plate (1), a left positioning protrusion (15) is formed at an end portion of the left positioning post (14) close to the right cover plate (2), a right positioning post (24) is disposed on the right cover plate (2), a right positioning groove (25) is inwardly formed at an end portion of the right positioning post (24) close to the left cover plate (1), and the left positioning protrusion (15) can be inserted into the right positioning groove (25).

7. The casing structure of the earth leakage protector as claimed in claim 6, wherein a left through hole (16) is formed in the left positioning post (14), a right through hole (26) is formed in the right positioning post (24), after the left positioning protrusion (15) is inserted into the right positioning groove (25), the left through hole (16) is communicated with the right through hole (26), and screws are inserted into the left through hole (16) and the right through hole (26) for fixing.

8. The casing structure of the earth-leakage protector according to claim 1, characterized in that an intermediate cover plate (4) is arranged between the left cover plate (1) and the right cover plate (2), at least one of the intermediate cover plates (4) being arranged such that the intermediate cover plate (4) increases the space of the chamber.

9. A casing structure of a leakage protector as claimed in claim 8, wherein a first middle positioning column (44) is provided at one side of the middle cover plate (4) close to the left cover plate (1), a middle positioning groove (45) is formed inwards at the end of the first middle positioning column (44) close to the left cover plate (1), a second middle positioning column (46) is provided at one side of the middle cover plate (4) close to the right cover plate (2), and a middle positioning protrusion (47) is formed at the end of the second middle positioning column (46) close to the right cover plate (2); the middle positioning groove (45) is matched with a middle positioning bulge (47) or a left positioning bulge (15) on the adjacent middle cover plate (4); the middle positioning protrusion (47) is matched with the middle positioning groove (45) or the right positioning groove (25) on the adjacent middle cover plate (4).

10. A casing structure of a leakage protector according to claim 9, wherein the first middle positioning column (44) coincides with the axis of the second middle positioning column (46); and a middle through hole (48) penetrating through the first middle positioning column (44) and the second middle positioning column (46) is arranged on the axes of the first middle positioning column (44) and the second middle positioning column (46), and screws can sequentially penetrate through a hole on the left cover plate (1), the middle through hole (48) and a hole on the right cover plate (2) for fixing.

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