Arc extinguishing chamber convenient to assemble

Abstract

The utility model relates to an arc extinguishing chamber convenient to assemble, which is composed of an arc extinguishing chamber body and a plurality of arc extinguishing grid sheets, the arc extinguishing chamber body is provided with an accommodating cavity, the arc extinguishing grid sheets are arranged in the accommodating cavity and are arranged at intervals along the length direction of the arc extinguishing chamber body, and the arc extinguishing chamber body comprises a matching plate body. The matching plate body is located on the front side of the arc extinguishing cover body and is rotationally connected with the arc extinguishing cover body, clamping blocks are arranged on the left side and the right side of each arc extinguishing grid sheet in a protruding mode, clamping grooves are formed in the arc extinguishing cover body, each arc extinguishing grid sheet comprises limiting sections on the left side and the right side, the lower end face of each limiting section abuts against the upper side of the arc extinguishing cover body, and limiting columns are arranged on the arc extinguishing cover body in a protruding mode. Each limiting section is provided with a limiting groove, the arc extinguishing cover body is provided with a positioning insertion block on a rotation track of the matching plate body, and the positioning insertion block is detachably connected with the matching plate body. By adopting the scheme, the arc extinguishing chamber convenient to assemble is provided, and the arc extinguishing grid sheets can be conveniently arranged in the arc extinguishing chamber body and cannot be separated from the arc extinguishing chamber body under the impact.

Description

Technical Field

[0001] The utility model relates to an arc extinguishing hood, in particular to an arc extinguishing hood which is easy to assemble. Background Art

[0002] The arc extinguishing hood is a commonly used device that allows the arc to contact with a solid medium, reducing the arc temperature and thus accelerating the extinction of the arc.

[0003] Among them, the arc extinguishing hood usually includes an arc extinguishing hood body and a plurality of arc extinguishing grids. The length direction of the arc extinguishing hood body extends front to back. The arc extinguishing grids are installed on the arc extinguishing hood body in an equidistant manner along the front to back direction, so that arc extinguishing gaps are formed between adjacent arc extinguishing grids to cut the arc generated by the switch being disconnected, thereby realizing rapid arc extinguishing.

[0004] The existing arc extinguishing hood installation method is usually to protrude a clamping block on each arc extinguishing grid and then deform each arc extinguishing grid to allow the clamping block to enter the corresponding slot to complete the stable connection between the arc extinguishing grid and the arc extinguishing hood.

[0005] However, when the arc extinguishing hood is impacted, the clamping blocks on each arc extinguishing grid piece are easily disengaged from the corresponding slot, causing the arc extinguishing grid piece to fall off from the arc extinguishing hood body, thus affecting the use. Summary of the invention

[0006] In view of the deficiencies in the prior art, the utility model aims to provide an arc extinguishing hood which is easy to assemble and in which the arc extinguishing grids can be easily installed into the arc extinguishing hood body and the arc extinguishing grids will not be separated from the arc extinguishing hood body under impact.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: it is composed of an arc extinguishing cover body and a plurality of arc extinguishing grids, the length direction of the arc extinguishing cover body extends forward and backward, the arc extinguishing cover body is provided with a receiving cavity, each of the arc extinguishing grids is located in the receiving cavity and is arranged at intervals along the length direction of the arc extinguishing cover body, the arc extinguishing cover body includes a matching plate body, the matching plate body is located at the front side of the arc extinguishing cover body and is rotatably connected to the arc extinguishing cover body, each of the arc extinguishing grids is made of a material that is easy to deform, and each of the arc extinguishing grids is provided with a receiving cavity. Blocks are protrudingly provided on the left and right sides of the plate, and the arc extinguishing cover body is provided with slots for inserting each block. Each of the arc extinguishing grid plates includes limiting sections on the left and right sides, and the lower end surface of each limiting section is abutted against the upper side of the arc extinguishing cover body. The arc extinguishing cover body is protrudingly provided with limiting columns below each limiting section, and each limiting section is provided with a limiting groove for inserting the corresponding limiting column. The arc extinguishing cover body is provided with a positioning block on the rotation trajectory of the mating plate body, and the positioning block is detachably connected to the mating plate body.

[0008] The utility model is further configured as follows: each of the card blocks includes an insertion section and a resistance section, the length direction of each of the insertion sections extends left and right, each of the resistance sections is respectively located on the outside of the corresponding insertion section, the length direction of each of the resistance sections extends up and down, each of the card slots includes an upper mating portion and a lower mating portion, each of the upper mating portions is interconnected with the corresponding lower mating portion, and each of the insertion sections is located in the corresponding upper mating portion.

[0009] The utility model is further configured as follows: it also includes a number of return springs that is the same as the limit columns, the length direction of each of the return springs extends up and down, the arc extinguishing cover body is located below each limit section and is provided with a sliding groove for the corresponding limit column to slide downward, each of the return springs is respectively located in the corresponding sliding groove and one end is fixedly connected to the corresponding limit column, and the other end is fixedly connected to the arc extinguishing cover body.

[0010] The utility model is further configured as follows: it also includes a limit plate located at the bottom of each limit column, the diameter of each limit plate is larger than the diameter of the corresponding limit column, the shape and size of each sliding groove are adapted to the shape and size of the corresponding limit plate, the arc extinguishing cover body is located on the outside of each sliding groove and is provided with a matching groove that is interconnected with the corresponding sliding groove, and each limit plate is provided with a matching piece that penetrates the corresponding matching groove.

[0011] The utility model is further configured as follows: it also includes a positioning column, the length direction of which extends forward and backward, each of the arc-extinguishing grids is provided with a positioning groove for the positioning column to be inserted, and the positioning column is inserted into each positioning groove and is detachably connected to the matching plate.

[0012] The utility model is further configured as follows: the mating plate body is provided with a mounting block protruding rearward, the positioning block includes a front positioning section and a rear positioning section, the width of the front positioning section is greater than the width of the rear positioning section, the mounting block includes a left mounting column and a right mounting column on left and right sides, the left mounting column is located on the left side of the rear positioning section, the right mounting column is located on the right side of the rear positioning section, the left mounting column and the right mounting column are both located on the rear side of the front positioning section, and the mounting block includes a deformation groove located between the left mounting column and the right mounting column.

[0013] The utility model is further configured as follows: the front positioning section includes a left guide surface and a right guide surface, the left guide surface is inclined from right to left from front to back, and the right guide surface is inclined from left to right from front to back.

[0014] By adopting the above technical solution, after each arc-extinguishing grid is loaded into the accommodating cavity from top to bottom, and each limiting column can be located in the corresponding limiting groove, when each limiting section is abutted against the arc-extinguishing cover body, the position of each arc-extinguishing grid in the up and down direction relative to the arc-extinguishing cover body is determined. Since the matching plate is located at the front side of the arc-extinguishing cover body and is rotatably connected to the arc-extinguishing cover body, by flipping the matching plate body toward the side away from the arc-extinguishing cover body, the arc-extinguishing grid made of deformable material can be deformed inward more directly and conveniently, so that the respective blocking blocks on the left and right sides of each arc-extinguishing grid can enter the corresponding blocking groove, so that the position of each arc-extinguishing grid in the left and right direction can be determined, and each arc-extinguishing grid can be realized. The position of the grid on the arc extinguishing hood is determined. Therefore, during the use of the arc extinguishing hood, each arc extinguishing grid can be stably located in the accommodating cavity of the arc extinguishing hood to extinguish the arc when the switch is disconnected. At this time, the matching plate is rotated toward the arc extinguishing hood to make the matching plate and the positioning plug of the arc extinguishing hood match to achieve the matching plate Stable position on the front side of the arc extinguishing hood; and when it is necessary to separate the arc extinguishing grid from the arc extinguishing hood, at this time, an inward force is applied to each card block to make it move inward through the corresponding card slot, and then upward to separate each limit column from the corresponding limit slot, and then each arc extinguishing grid is taken out from the accommodating cavity, thereby achieving the separation of each arc extinguishing grid from the arc extinguishing hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 A three-dimensional diagram of a specific implementation of the utility model;

[0017] Figure 2 It is a cross-sectional view from top to bottom of the utility model;

[0018] Figure 3 It is a cross-sectional view of the utility model from left to right;

[0019] Figure 4 It is an exploded view of the utility model;

[0020] Figure 5 for Figure 1 A magnified view of middle;

[0021] Figure 6 for Figure 2 Enlarged view of middle B;

[0022] Figure 7 for Figure 3Enlarged view of middle C;

[0023] Figure 8 for Figure 4 Enlarged view of middle D;

[0024] Fig. 9 for Figure 4 Enlarged view of E in the middle;

[0025] Fig.10 for Figure 4 Enlarged view of F.

[0026] In the figure: 1-arc extinguishing cover, 11-accommodating cavity, 12-matching plate, 121-mounting plug, 1211-left mounting column, 1212-right mounting column, 1213-deformation groove, 13-card slot, 131-upper matching part, 132-lower matching part, 14-limiting column, 141-limiting plate, 1411-matching piece, 15-positioning plug, 151-front positioning section, 1511-left guide surface, 1512-right guide surface, 152-rear positioning section, 16-sliding groove, 17-matching groove, 2-arc extinguishing grid, 21-card block, 211-insertion section, 212-contact section, 22-limiting section, 221-limiting groove, 23-positioning groove, 3-reset spring, 4-positioning column. DETAILED DESCRIPTION

[0027] 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 in 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.

[0028] like Figure 1-Figure 10As shown, the utility model discloses an arc extinguishing hood which is easy to assemble, and is composed of an arc extinguishing hood body 1 and a plurality of arc extinguishing grids 2. The arc extinguishing hood body 1 extends in the longitudinal direction along the front and rear, and is provided with a receiving cavity 11. Each of the arc extinguishing grids 2 is located in the receiving cavity 11 and is arranged at intervals along the longitudinal direction of the arc extinguishing hood body 1. Since each of the arc extinguishing grids 2 is arranged at intervals along the longitudinal direction of the arc extinguishing hood body 1, the arc generated by the switch being disconnected is divided by the arc extinguishing gap between the adjacent arc extinguishing grids 2, so that the arc is extinguished quickly. The arc hood body includes a matching plate body 12, and the matching plate body 12 is located at the front side of the arc extinguishing hood body 1 and is rotatably connected to the arc extinguishing hood body 1. Each of the arc extinguishing grids 2 is provided with a matching plate body 12, and the matching plate body 1 ... The arc-extinguishing grid 2 is made of a material that is easy to deform, such as silicone. A card block 21 is protrudingly provided on the left and right sides of each arc-extinguishing grid 2. A card slot 13 is provided on the arc-extinguishing cover body 1 for inserting each card block 21. Each arc-extinguishing grid 2 includes a limiting section 22 on the left and right sides. The lower end surface of each limiting section 22 is against the upper side of the arc-extinguishing cover body 1. The arc-extinguishing cover body 1 is protrudingly provided with a limiting column 14 below each limiting section 22. Each limiting section 22 is provided with a limiting groove 221 for inserting the corresponding limiting column 14. The arc-extinguishing cover body 1 is provided with a positioning block 15 on the rotation trajectory of the matching plate body 12. The positioning block 15 is detachably connected to the matching plate body 12 by means of buckles, bolts, etc., so that each arc-extinguishing grid is 2 is loaded into the accommodating cavity 11 from top to bottom, and each limiting column 14 can be located in the corresponding limiting groove 221. At this time, when each limiting segment 22 abuts against the arc extinguishing cover body 1, the position of each arc extinguishing grid 2 in the vertical direction and the arc extinguishing cover body 1 is determined. Since the matching plate body 12 is located at the front side of the arc extinguishing cover body 1 and is rotatably connected to the arc extinguishing cover body 1, after the matching plate body 12 is turned toward the side away from the arc extinguishing cover body 1, the arc extinguishing grid 2 made of a deformable material can be deformed inward more directly and conveniently, so that each of the card blocks 21 on the left and right sides of each arc extinguishing grid 2 enters the corresponding card groove 13, so that the position of each arc extinguishing grid 2 in the left and right direction can be determined, thereby realizing that each arc extinguishing grid 2 is in the arc extinguishing cover. The position on the arc extinguishing hood is determined, so during the use of the arc extinguishing hood, each arc extinguishing grid 2 can be stably located in the accommodating cavity 11 of the arc extinguishing hood to extinguish the arc when the switch is disconnected. At this time, the matching plate body 12 is rotated toward the arc extinguishing hood to make the matching plate and the positioning plug block 15 of the arc extinguishing hood body 1 cooperate to achieve the matching plate body 12 Stably located on the front side of the arc extinguishing hood; and when it is necessary to separate each arc extinguishing grid 2 from the arc extinguishing hood, at this time, an inward force is applied to each clamping block 21 to make it move inward through the corresponding clamping groove 13, and then upward to separate each limit column 14 from the corresponding limit groove 221, and then each arc extinguishing grid 2 is taken out from the accommodating cavity 11, thereby achieving the separation of each arc extinguishing grid 2 from the arc extinguishing hood body 1.

[0029] Among them, each of the card blocks 21 includes an insertion section 211 and a contact section 212, the length direction of each of the insertion sections 211 extends left and right, each of the contact sections 212 is respectively located on the outside of the corresponding insertion section 211, and the length direction of each of the contact sections 212 extends up and down, each of the card slots 13 includes an upper matching portion 131 and a lower matching portion 132, each of the upper matching portions 131 is communicated with the corresponding lower matching portion 132, and each of the insertion sections 211 is located in the corresponding upper matching portion 131. Since each of the card blocks 21 includes a disassembly section and a contact section 212, and the length direction of each of the insertion sections 211 extends left and right and is located in the corresponding upper matching portion 131, at this time, after the matching plate body 12 is rotated toward the side away from the arc extinguishing cover, an inward force is applied to each arc extinguishing grid 2, so that each The clamping block 21 is located at the inner side of the corresponding clamping slot 13, and then after each insertion section 211 is inserted into the corresponding upper matching portion 131, each abutting section 212 is located at the outer side of each clamping slot 13 of the arc extinguishing cover and abuts against the arc extinguishing cover. Therefore, in the absence of external force, each arc extinguishing grid 2 can be stably located in the arc extinguishing cover. When it is necessary to take each arc extinguishing grid 2 out of the accommodating cavity 11, an outward force is applied to each clamping block 21, so that the insertion section 211 and the abutting section 212 enter the lower matching portion 132 of the clamping slot 13. At this time, the abutting section 212 that enters the corresponding lower matching portion 132 can move inwardly and be separated from the corresponding clamping slot 13, thereby realizing the separation of each arc extinguishing grid 2 from the arc extinguishing cover. Therefore, the setting of the lower matching portion 132 facilitates the separation of the clamping block 21 and the clamping slot 13.

[0030] Among them, it also includes the same number of return springs 3 as the limit posts 14, and the length direction of each return spring 3 extends up and down. The arc extinguishing cover body 1 is located below each limit section 22 and is provided with a sliding groove 16 for the corresponding limit post 14 to slide downward. Each return spring 3 is respectively located in the corresponding sliding groove 16 and one end is fixedly connected to the corresponding limit post 14 by welding or the like, and the other end is fixedly connected to the arc extinguishing cover body 1 by welding or the like. Since the bottom of each limit post 14 is fixed to the corresponding return spring 3, and the other end of each return spring 3 is fixedly connected to the arc extinguishing cover body 1, in addition to directly aligning the limit post 14 with the corresponding limit groove 221 In addition to accurately assembling each arc-extinguishing grid 2 and the arc-extinguishing cover, each limit column 14 is first pressed downward to compress each reset spring 3 downward to drive each limit column 14 to enter the corresponding sliding groove 16. At this time, after the corresponding limit section 22 reaches the top of the arc-extinguishing cover body 1, in the absence of external force, the reset of each reset spring 3 can drive the corresponding limit column 14 to move upward to make each limit column 14 enter the corresponding limit groove 221, so that in the absence of external force, each limit column 14 can be stably located in the corresponding limit groove 221, thereby further improving the stability of the connection between each arc-extinguishing grid 2 and the arc-extinguishing cover body 1.

[0031] Among them, it also includes a limiting plate 141 located at the bottom of each limiting column 14, the diameter of each limiting plate 141 is larger than the diameter of the corresponding limiting column 14, the shape and size of each sliding groove 16 are adapted to the shape and size of the corresponding limiting plate 141, and the arc extinguishing cover body 1 is provided with a matching groove 17 interconnected with the corresponding sliding groove 16 on the outside of each sliding groove 16, and each limiting plate 141 is provided with a matching piece 1411 penetrating the corresponding matching groove 17. 1. Since the diameter of each limiting plate 141 is larger than the diameter of the corresponding limiting column 14, and the shape of each sliding groove 16 The size is adapted to the corresponding limit plate 141, so each limit plate 141 cannot be separated from the corresponding sliding groove 16, so each limit plate 141 can limit the sliding path of the corresponding limit column 14 in the up and down directions; 2. Since the arc extinguishing cover body 1 is located on the outside of each sliding groove 16 and is provided with a matching groove 17 connected to the corresponding sliding groove 16, and each limit plate 141 is provided with a matching piece 1411, therefore, by applying an up and down force to each limit piece, each limit plate 141 can be driven to move in the up and down directions, thereby compressing the corresponding reset spring 3.

[0032] In addition, it also includes a positioning column 4, the length direction of which extends forward and backward, and each of the arc-extinguishing grids 2 is provided with a positioning groove 23 for the positioning column 4 to be inserted. The positioning column 4 is inserted into each positioning groove 23 and is detachably connected to the matching plate body 12 by means of threads or the like. Since the positioning column 4 is inserted into the positioning groove 23 of each arc-extinguishing grid 2 and is detachably connected to the matching plate body 12, the stability of each arc-extinguishing grid 2 in the arc-extinguishing cover body 1 is further improved by connecting the positioning column 4 to the matching plate body 12.

[0033] Among them, the matching plate body 12 is provided with a mounting block 121 protruding rearward, the positioning block 15 includes a front positioning section 151 and a rear positioning section 152, the width of the front positioning section 151 is greater than the width of the rear positioning section 152, the mounting block 121 includes a left mounting column 1211 and a right mounting column 1212 on the left and right sides, the left mounting column 1211 is located on the left side of the rear positioning section 152, the right mounting column 1212 is located on the right side of the rear positioning section 152, the left mounting column 1211 and the right mounting column 1212 are both located on the rear side of the front positioning section 151, the mounting block 121 includes a deformation groove 1213 located between the left mounting column 1211 and the right mounting column 1212, when the matching plate body 12 is located in front of the positioning block 15, at this time, it continues to approach the positioning block 15, at this time, the left mounting column 1211 and the right mounting column 1212 will first contact the mounting block The left and right mounting posts 1211 and 1212 are located on the left side of the rear positioning section 152 and the right mounting post 1212 are located on the right side of the rear positioning section 152. Therefore, without the action of external force, the left and right mounting posts 1211 and 1212 cannot pass through the front positioning section 151 forward. Therefore, the mating plate body 12 can be stably connected with the positioning plug 15. When it is necessary to separate the mating plate body 12 from the positioning plug 15, a forward force is applied to the mating plate body 12 so that the left and right mounting posts 1211 and 1212 are forced forward and pass through the front positioning section 151, thereby realizing the forward flipping of the mating plate body 12.

[0034] Preferably, the front positioning section 151 includes a left guide surface 1511 and a right guide surface 1512, the left guide surface 1511 is inclined from right to left from front to back, and the right guide surface 1512 is inclined from left to right from front to back. Since the left guide surface 1511 and the right guide surface 1512 are both inclined, the front positioning section 151 is in the shape of a triangular prism that is narrow in front and wide in the back. Therefore, when the mating plate body 12 is located in front of the positioning plug 15, the installation plug 121 will first contact the narrowest part of the front positioning section 151 of the positioning plug 15, so that as the installation plug 121 moves backward to realize the left installation column 1211 and the right installation column 1212 passing over the front positioning section 151, the left installation column 1211 and the right installation column 1212 can pass over the front positioning section 151 more smoothly, so that the mating plate body 12 is stably located at the front side of the arc extinguishing cover body 1.

[0035] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An arc extinguishing hood that is easy to assemble, consisting of an arc extinguishing hood body and a plurality of arc extinguishing grids, wherein the arc extinguishing hood body extends in the front-rear direction in the length direction, and an accommodating cavity is provided on the arc extinguishing hood body, wherein each of the arc extinguishing grids is located in the accommodating cavity and arranged at intervals along the length direction of the arc extinguishing hood body, and characterized in that: The arc hood body includes a matching plate body, which is located at the front side of the arc extinguishing hood body and is rotatably connected to the arc extinguishing hood body. Each of the arc extinguishing grids is made of a material that is easy to deform. Blocks are protrudingly provided on the left and right sides of each of the arc extinguishing grids. The arc extinguishing hood body is provided with a slot for inserting each block. Each of the arc extinguishing grids includes a limiting section on the left and right sides, and the lower end surface of each limiting section is abutted against the upper side of the arc extinguishing hood body. The arc extinguishing hood body is provided with a limiting column protruding below each limiting section, and each of the limiting sections is provided with a limiting groove for inserting the corresponding limiting column. The arc extinguishing hood body is provided with a positioning block on the rotation trajectory of the matching plate body, and the positioning block is detachably connected to the matching plate body.

2. The arc extinguishing hood that is easy to assemble according to claim 1 is characterized in that: Each of the card blocks includes an insertion section and a resistance section. The length direction of each of the insertion sections extends left and right. Each of the resistance sections is located on the outside of the corresponding insertion section. The length direction of each of the resistance sections extends up and down. Each of the card slots includes an upper mating portion and a lower mating portion. Each of the upper mating portions is interconnected with the corresponding lower mating portion, and each of the insertion sections is located in the corresponding upper mating portion.

3. The arc extinguishing hood that is easy to assemble according to claim 2 is characterized in that: It also includes a number of return springs that are the same as the limit columns, and the length direction of each return spring extends up and down. The arc extinguishing cover is located below each limit section and is provided with a sliding groove for the corresponding limit column to slide downward. Each return spring is respectively located in the corresponding sliding groove and one end is fixedly connected to the corresponding limit column, and the other end is fixedly connected to the arc extinguishing cover.

4. The arc extinguishing hood that is easy to assemble according to claim 3 is characterized in that: It also includes a limit plate located at the bottom of each limit column, the diameter of each limit plate is larger than the diameter of the corresponding limit column, the shape and size of each sliding groove are adapted to the shape and size of the corresponding limit plate, the arc extinguishing cover body is located on the outside of each sliding groove and is provided with a matching groove that is interconnected with the corresponding sliding groove, and each limit plate is provided with a matching piece that penetrates the corresponding matching groove.

5. An arc extinguishing hood that is easy to assemble according to any one of claims 1 to 4, characterized in that: It also includes a positioning column, the length direction of which extends forward and backward, and each of the arc-extinguishing grids is provided with a positioning groove for the positioning column to be inserted, and the positioning column is inserted into each positioning groove and is detachably connected to the matching plate body.

6. The arc extinguishing hood that is easy to assemble according to claim 1, characterized in that: The mating plate body is provided with a mounting block protruding rearward, the positioning block includes a front positioning section and a rear positioning section, the width of the front positioning section is greater than the width of the rear positioning section, the mounting block includes a left mounting column and a right mounting column on left and right sides, the left mounting column is located on the left side of the rear positioning section, the right mounting column is located on the right side of the rear positioning section, the left mounting column and the right mounting column are both located on the rear side of the front positioning section, and the mounting block includes a deformation groove located between the left mounting column and the right mounting column.

7. The arc extinguishing hood that is easy to assemble according to claim 6, characterized in that: The front positioning section includes a left guide surface and a right guide surface. The left guide surface is inclined from right to left from front to back, and the right guide surface is inclined from left to right from front to back.

Images