A buffer positioning sealing structure for high-voltage column-mounted circuit breaker casing

Abstract

The present invention provides a buffer positioning sealing structure for a high-voltage column mounted circuit breaker casing, and belongs to the technical field of circuit breaker casings. The structure comprises a casing, a casing is fixedly connected to the casing, a positioning plate is fixedly connected to the inner circumference of the casing, a positioning groove is provided on the positioning plate, a mounting plate is fixedly connected to the bottom outer wall of the casing, a support plate is fixedly connected to one end of the bottom of the casing, a bite plate is screwed and fixed to the top of the mounting plate by bolts and nuts, and a side plate is fixedly connected to the bottom of the bite plate; a sealing component is used to seal between the casing and the casing, and the sealing component is respectively connected to the positioning groove and the support plate. The present invention provides a unique sealing effect between the casing and the casing by setting a sealing component, which can not only greatly improve the sealing between the casing and the casing, but also provide a better buffering effect for the two, and greatly ensure the sealing of the casing and the casing during long-term use.

Description

Technical Field

[0001] The invention relates to the technical field of circuit breaker bushings, and in particular to a buffer positioning sealing structure of a high-voltage column mounted circuit breaker bushing. Background Art

[0002] A circuit breaker is an electrical device used to protect circuits. It is mainly used to automatically cut off power when a short circuit, overload or other abnormal situation occurs in the circuit to protect the safety of electrical equipment and lines. The sealing structure plays a key role in the circuit breaker, which is specifically reflected in the product leakage rate performance index, reflecting the circuit breaker's ability to maintain safety and stability.

[0003] For example, the Chinese patent with publication number CN217955737U discloses a high-voltage column-mounted circuit breaker bushing sealing structure, which includes a flange-shaped sealing ring, the large diameter end of which is pressed and embedded between the bottom surface of the bushing boss and the counter surface of the box body, and the small diameter end of which is pressed and embedded between the outer surface of the bushing below the boss and the side wall of the box body opening. In this utility model, the large diameter end of the flange-shaped sealing ring is used to achieve the first-level sealing and buffering between the bottom surface of the boss and the surface of the box body, the small diameter end of the flange-shaped seal is used to achieve the second-level sealing between the side wall of the box body opening and the protrusion below the boss, and the area between the large diameter end and the small diameter end forms a third-level sealing and a buffer between the protrusion and the side wall of the opening; then the positioning block on the boss is used to achieve the precise positioning of the bushing assembly, which improves the identity of batch products, and also achieves foolproofing between the bushing and the pressure plate, thereby improving assembly efficiency.

[0004] The above-mentioned high-voltage pole-mounted circuit breaker casing sealing structure uses a flange-shaped sealing ring to replace the existing buffer pad and sealing ring, and uses the flange-shaped sealing ring to perform multiple sealing and buffering between the casing and the box body. The above-mentioned sealing ring is arranged at the connecting gap between the casing and the box body, and the sealing ring flange-shaped structural setting adapts to the shape between the casing and the box body. However, in order to ensure that the sealing ring plays a sealing and buffering effect, it must be installed at a specific position. If there is a position deviation during the installation process, the above-mentioned sealing ring will not be able to adapt to the contour between the casing and the box body, and will not be able to play a sealing and buffering effect. Therefore, the installation accuracy of the sealing ring is very high. The manual positioning process generally has a high risk of errors. In addition, during actual operation, the structure and weight of the box body and the casing are very large. Only using a flange-shaped sealing ring to buffer between the casing and the box body has limited buffering capacity and poor buffering effect. Therefore, the present invention provides a high-voltage pole-mounted circuit breaker casing buffer positioning sealing structure to meet the needs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a high-voltage pole-mounted circuit breaker bushing buffer positioning sealing structure. By setting a sealing component, the sealing effect between the bushing and the box body is unique, which can not only greatly improve the sealing between the bushing and the box body, but also provide a better buffering effect for the two, greatly ensuring the sealing of the bushing and the box body during long-term use. The above setting can solve the problem of poor sealing and buffering effects between the bushing and the box body in the existing sealing structure.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A buffer positioning sealing structure for a high-voltage column-mounted circuit breaker bushing comprises a box body, a bushing is fixedly connected to the box body, a positioning plate is fixedly connected to the inner circumference of the box body, a positioning groove is provided on the positioning plate, a terminal is fixedly inserted in the bushing, a mounting plate is fixedly connected to the bottom outer wall of the bushing, a support plate is fixedly connected to one end of the bottom of the bushing, a bite plate is screwed to the top of the mounting plate by bolts and nuts, and a side plate is fixedly connected to the bottom of the bite plate; a sealing component, the sealing component is used to seal between the box body and the bushing, and the sealing component is respectively connected to the positioning groove and the support plate.

[0008] Optionally, the sealing assembly includes a sealing gasket inserted in the positioning groove, a first inner frame is installed in one end of the sealing gasket, a second inner frame is installed in the middle position of the sealing gasket, and a third inner frame and a fourth inner frame are installed in the other end of the sealing gasket.

[0009] Optionally, a conical groove is opened on one end of the sealing gasket close to the first inner frame, a reinforcing rib is fixedly connected to the sealing gasket, a first adapter part is fixedly connected to the sealing gasket close to the support plate, and a second adapter part is fixedly connected to the sealing gasket close to the positioning groove.

[0010] Optionally, a protrusion is fixedly connected to the top of the first inner skeleton, arc-shaped clamping portions are fixedly connected to both sides of the protrusion, an elastic bending portion is fixedly connected to one end of the arc-shaped clamping portion, and a weakened groove is provided at the connection position between the protrusion and the arc-shaped clamping portion.

[0011] Optionally, the elastic bending portion is M-shaped and is an elastic curved surface structure, an adapting slot is provided at the bottom of the elastic bending portion, and an adapting plug-in block matching the shape of the adapting slot is fixedly connected to the inner wall of the sealing gasket.

[0012] Optionally, the protruding portion, the arc-shaped clamping portion and the elastic bending portion are an integrally manufactured structure.

[0013] Optionally, elastic buffer parts are fixedly connected to both sides of the second inner skeleton, a reset plate is fixedly connected to the middle position of the second inner skeleton, and both the reset plate and the elastic buffer part are curved elastic structures.

[0014] Optionally, a first extrusion portion is fixedly connected to the third inner skeleton, and a first recessed portion that matches the shape of the positioning groove is fixedly connected to the third inner skeleton.

[0015] Optionally, a second extrusion portion matching the contour of the first adapter portion is fixedly connected to the fourth inner skeleton, a third extrusion portion is fixedly connected to the fourth inner skeleton, and a second recessed portion matching the shape of the positioning groove is fixedly connected to the fourth inner skeleton.

[0016] Optionally, the third internal skeleton and the fourth internal skeleton are in conflict with each other, and both the third internal skeleton and the fourth internal skeleton are elastic structures.

[0017] Compared with the prior art, the present invention has at least the following beneficial effects:

[0018] In the above scheme, by setting up a sealing component, the sealing effect between the sleeve and the box body is unique, which not only greatly improves the sealing between the sleeve and the box body, but also provides a better buffering effect for the two, greatly ensuring the sealing of the sleeve and the box body during long-term use.

[0019] By arranging a sealing gasket in the sealing assembly, the user can use the second adapter part to insert and fix the sealing gasket in the positioning groove. Such an arrangement makes the installation position of the sealing gasket unique, thereby ensuring the sealing effect of the sealing gasket on the sleeve and the box body. After the sleeve is inserted, the sealing gasket is located in the gap between the box body and the sleeve, and the overall contour of the sealing gasket just matches the contour of the gap between the box body and the sleeve, so the sealing gasket can achieve a sealing effect on the two.

[0020] By setting a first inner skeleton in the sealing assembly, the guiding positioning of the side panel can be achieved in cooperation with the structure of the sealing gasket, and in the process of installing the sleeve, the firmness of the cooperation between the side panel and the sealing gasket is further improved by means of the extrusion force between the sleeve and the box body, thereby improving the sealing effect of the sealing gasket on the side panel and realizing the external sealing of the sleeve and the box body. In addition, in the use of the sleeve, the structural setting of the first inner skeleton and the sealing gasket can absorb and buffer the unstable force between the sleeve and the box body, thereby improving the sealing effect between the equipment, reducing the equipment leakage rate, and improving product safety.

[0021] By setting a second internal skeleton in the sealing assembly, the overall structure of the sealing gasket can be supported, thereby ensuring the sealing performance of the sealing gasket between the box body and the sleeve. In addition, the second internal skeleton has a buffering effect on external forces. This effect, combined with the structure of the sealing gasket, can further improve the buffering effect between the sleeve and the box body, thereby ensuring the safety of the equipment during use.

[0022] By arranging the third inner skeleton and the fourth inner skeleton in the sealing assembly, the sealing gasket at the position of the second adapter part can be supported. The effect achieved after the support can improve the firmness of the fit between the sealing gasket and the positioning groove, thereby making the card connection between the sealing gasket and the box body more firm and stable, and improving the sealing effect of the sealing gasket. In addition, when squeezed by external force, the third inner skeleton and the fourth inner skeleton can cooperate with the structure of the sealing gasket to synchronously absorb and buffer the external force, thereby improving the stability and safety of the equipment and reducing the leakage rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0024] Figure 1 It is an enlarged three-dimensional structural diagram of the buffer positioning sealing structure and the box body of the high-voltage column-mounted circuit breaker;

[0025] Figure 2 It is an enlarged three-dimensional structural diagram of the sealing component, the box body and the sleeve;

[0026] Figure 3 It is a schematic diagram of the cross-sectional three-dimensional structure of the sealing component, the box body and the sleeve;

[0027] Figure 4 for Figure 3 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0028] Figure 5 for Figure 3 The enlarged three-dimensional structure diagram at B in the middle;

[0029] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the sealing component and the bite plate;

[0030] Figure 7 for Figure 6 The enlarged three-dimensional structure diagram at C in the middle;

[0031] Figure 8 for Figure 6 The enlarged three-dimensional structure diagram at D in the middle;

[0032] Fig. 9It is a schematic diagram of an enlarged three-dimensional structure of the first inner skeleton;

[0033] Fig.10 It is a schematic diagram of the enlarged three-dimensional structure of the second inner skeleton;

[0034] Fig.11 This is an enlarged three-dimensional structural diagram of the third internal skeleton;

[0035] Fig.12 This is a schematic diagram of the enlarged three-dimensional structure of the fourth internal skeleton.

[0036] Reference numerals:

[0037] 1. Box body; 101. Positioning plate; 102. Positioning groove; 2. Sleeve; 201. Mounting plate; 202. Support plate; 3. Terminal; 4. Engagement plate; 401. Side plate; 5. Sealing gasket; 501. Conical groove; 502. Adapter plug-in block; 503. Reinforcing rib; 504. First adapter part; 505. Second adapter part; 6. First inner skeleton; 601. Arc clamping part; 602. Protruding part; 603. Weakened groove; 604. Elastic bending part; 605. Adapter slot; 7. Second inner skeleton; 701. Elastic buffer part; 702. Reset sheet; 8. Third inner skeleton; 801. First extrusion part; 802. First recessed part; 9. Fourth inner skeleton; 901. Second extrusion part; 902. Third extrusion part; 903. Second recessed part.

[0038] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0039] The following is a detailed description of a high-voltage column mounted circuit breaker bushing buffer positioning sealing structure provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0040] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0041] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0042] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0043] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0044] like Figures 1 to 12As shown, an embodiment of the present invention provides a buffer positioning sealing structure for a high-voltage column-mounted circuit breaker bushing, comprising a box body 1, a bushing 2 is fixedly connected to the box body 1, a positioning plate 101 is fixedly connected to the inner circumference of the box body 1, a positioning groove 102 is provided on the positioning plate 101, a terminal 3 is fixedly inserted in the bushing 2, a mounting plate 201 is fixedly connected to the bottom outer wall of the bushing 2, a support plate 202 is fixedly connected to one end of the bottom of the bushing 2, a bite plate 4 is screwed and fixed to the top of the mounting plate 201 by bolts and nuts, and a side plate 401 is fixedly connected to the bottom of the bite plate 4; a sealing component, the sealing component is used to perform sealing treatment between the box body 1 and the bushing 2, and the sealing component is respectively connected to the positioning groove 102 and the support plate 202 The sealing structure provided in the present application is mainly suitable for circuit breakers on outdoor high-voltage columns. The specific sealing position is between the circuit breaker sleeve 2 and the box body 1. At this stage, when installing between the sleeve 2 and the box body 1, the bite plate 4 is mainly buckled from top to bottom on the mounting plate 201 at the bottom of the sleeve 2, and then the sleeve 2 and the box body 1 are squeezed and sealed using a sealing ring and a nut. In order to ensure that the sleeve 2 and the box body 1 have a sufficiently good sealing effect during long-term use, the present application sets a sealing component. The setting of the sealing component can not only greatly improve the sealing between the sleeve 2 and the box body 1, but also provide a better buffering effect for the two, which greatly ensures the sealing of the sleeve 2 and the box body 1 during long-term use.

[0045] As an implementation method in this embodiment, Figures 2 to 6As shown, the sealing assembly includes a sealing gasket 5 inserted into the positioning groove 102, a reinforcing rib 503 is fixedly connected to the sealing gasket 5, a first adapter portion 504 is fixedly connected to the position of the sealing gasket 5 close to the support plate 202, and a second adapter portion 505 is fixedly connected to the position of the sealing gasket 5 close to the positioning groove 102. The sealing gasket 5 plays a major sealing role in the sealing assembly. The middle of the sealing gasket 5 is a hollow structure, which can be deformed under the extrusion of external force. The user needs to fix the sealing gasket 5 on the box body 1 before installing the sleeve 2. The contour of the second adapter portion 505 of the sealing gasket 5 coincides with the contour of the positioning groove 102, so the user can use the second adapter portion 505 to insert and fix the sealing gasket 5 in the positioning groove 102. This arrangement makes The installation position of the sealing gasket 5 is unique, thereby ensuring the sealing effect of the sealing gasket 5 on the sleeve 2 and the box body 1. When the position of the sealing gasket 5 is fixed, the user can install the sleeve 2. A notch for inserting the sleeve 2 is reserved on the surface of the box body 1. When installing the sleeve 2, the user needs to first insert the bottom of the sleeve 2 into the notch on the surface of the box body 1. During the continuous insertion process, the support plate 202 will gradually approach the first adapter portion 504 on the surface of the sealing gasket 5 until the support plate 202 and the first adapter portion 504 are in conflict with each other. At this time, the sleeve 2 is inserted. After the sleeve 2 is inserted, the sealing gasket 5 is in the gap between the box body 1 and the sleeve 2, and the overall contour of the sealing gasket 5 just coincides with the contour of the gap between the box body 1 and the sleeve 2 (such as Figure 3 As shown), the sealing gasket 5 can achieve a sealing effect on the two, and because the installation position of the sealing gasket 5 is unique, the sealing effect of the sealing gasket 5 can be maximized. The sealing gasket 5 is installed and fixed on the box body 1, ensuring that the sealing gasket 5 will not be easily misplaced during the entire use process, thereby further improving the sealing effect of the sealing gasket 5. It has been described in the previous text that the sleeve 2 and the box body 1 are screwed and fixed by bolts and nuts. The bolts need to pass through the mounting plate 201, the bite plate 4 and the sealing gasket 5 at the same time. In order to ensure the strength of the sealing gasket 5 at the insertion position of the bolt, a reinforcing rib 503 is set at the insertion position of the sealing gasket 5 and the bolt. The setting of the reinforcing rib 503 can improve the strength of the sealing gasket 5 at this position, thereby preventing the sealing gasket 5 from being worn during the repeated insertion of the bolt, and improving the service life of the sealing gasket 5.

[0046] In this embodiment, if Figures 2 to 4 and Fig. 9As shown, a first inner frame 6 is installed in one end of the sealing gasket 5, a conical groove 501 is provided on one end of the sealing gasket 5 close to the first inner frame 6, a protrusion 602 is fixedly connected to the top of the first inner frame 6, arc-shaped clamping portions 601 are fixedly connected to both sides of the protrusion 602, an elastic bending portion 604 is fixedly connected to one end of the arc-shaped clamping portion 601, a weakened groove 603 is provided at the connection position between the protrusion 602 and the arc-shaped clamping portion 601, and the elastic bending portion 604 is fixedly connected to the elastic bending portion 604. The shape of the sealing assembly is M-shaped and is an elastic curved surface structure. An adapting slot 605 is provided at the bottom of the elastic bending portion 604. An adapting plug 502 that matches the shape of the adapting slot 605 is fixedly connected to the inner wall of the sealing gasket 5. The protruding portion 602, the arc-shaped clamping portion 601 and the elastic bending portion 604 are an integrally manufactured structure. In the sealing assembly, the first inner frame 6 is installed at one end of the sealing gasket 5 close to the side plate 401. The bottom of the side plate 401 is a conical structure located at the side plate 40 The sealing pad 5 just below the first inner frame 6 is provided with a conical groove 501 adapted to the conical structure at the bottom of the side plate 401. When the user inserts the sleeve 2 into the box body 1, the user needs to place the bite plate 4 on the top of the sleeve 2 and install and fix the sleeve 2 with the help of the bite plate 4. During the placement of the bite plate 4, the side plate 401 is just inserted into the conical groove 501 and sealed and fixed with the help of the wrapping effect of the conical groove 501. The raised portion 602 on the top of the first inner frame 6 passes through the The conical groove 501 is exposed to the outside. When the side panel 401 is fully inserted into the conical groove 501, the bottom of the side panel 401 abuts against the top of the protrusion 602. The overall structure of the first inner skeleton 6 is made of metal. The reason why the protrusion 602 passes through the conical groove 501 and abuts against the bottom of the side panel 401 is to prevent the side panel 401 from puncturing or wearing the sealing gasket 5 at the position of the conical groove 501 during repeated insertion, thereby affecting the sealing effect of the sealing gasket 5.

[0047] Furthermore, the elastic bending portion 604 is an elastic structure with an overall M-shaped contour. Such a structural arrangement enables the elastic bending portion 604 to support the sealing gasket 5 and to increase the strength of the sealing gasket 5 with the help of the overall structure of the first inner skeleton 6, thereby improving the overall sealing effect of the sealing gasket 5. The arc-shaped clamping portion 601 is installed on both sides of the protruding portion 602. The arc-shaped clamping portion 601 is consistent with the groove structure of the conical groove 501, so it can play an effect of strengthening the structural strength of the conical groove 501. A weakening groove 603 is provided at the connecting position of the arc-shaped clamping portion 601 and the protruding portion 602. The weakening groove 603 thins the connecting position between the two, thereby making it easy for the arc-shaped clamping portion 601 and the protruding portion 602 to deform at the position of the weakening groove 603 under the action of external force. When the bite plate 4 is placed After completion, the user uses the screw and nut to install and fix it. During the process of screwing the nut, the bite plate 4 will squeeze the mounting plate 201 and move it close to the box body 1. During the movement, the mounting plate 201 and the side plate 401 will synchronously squeeze the sealing gasket 5 to deform. In this process, the elastic bending portion 604 will deform and drive the arc-shaped clamping portion 601 to deform at the position of the weakened groove 603. During the deformation of the arc-shaped clamping portion 601, it will move toward the middle position of the conical groove 501, thereby clamping and fixing the side plate 401. Such a setting automatically achieves the effect of clamping and fixing the side plate 401 with the help of the extrusion force during the fixing process of the sleeve 2. Under this effect, the matching effect between the bottom of the side plate 401 and the sealing gasket 5 can be further improved, thereby improving the sealing effect of the sealing gasket 5 on the side plate 401.

[0048] Furthermore, when the sleeve 2 partially shakes during use, the sealing gasket 5 will be squeezed under the action of external force. When the sealing gasket 5 is subjected to the squeezing force, the elastic bending portion 604 is deformed again, and cooperates with the sealing gasket 5 to absorb and buffer the shaking force. Therefore, the setting of the elastic bending portion 604 can not only improve the sealing effect of the side plate 401, but also cooperate with the sealing gasket 5 to play a buffering role for the sleeve 2 and the box body 1.

[0049] To summarize, by setting the first inner skeleton 6, the structure of the sealing gasket 5 can be cooperated to realize the guiding positioning of the side panel 401, and in the process of installing the sleeve 2, the squeezing force between the sleeve 2 and the box body 1 can be used to further improve the firmness of the fit between the side panel 401 and the sealing gasket 5, thereby improving the sealing effect of the sealing gasket 5 on the side panel 401 and realizing the external sealing of the sleeve 2 and the box body 1. In addition, in the use of the sleeve 2, the first inner skeleton 6 cooperates with the structural setting of the sealing gasket 5 to absorb and buffer the unstable force between the sleeve 2 and the box body 1, thereby improving the sealing effect between the equipment, reducing the equipment leakage rate, and improving product safety.

[0050] In this embodiment, if Figures 2 to 7and Fig.10 As shown, a second inner frame 7 is installed in the middle position of the sealing gasket 5, and elastic buffer parts 701 are fixedly connected on both sides of the second inner frame 7. A reset plate 702 is fixedly connected at the middle position of the second inner frame 7. The reset plate 702 and the elastic buffer part 701 are both curved elastic structures. Elastic buffer parts 701 are arranged on both sides of the second inner frame 7. The elastic buffer parts 701 can be deformed under the extrusion of external force and absorb the external force during the deformation process to achieve a buffering effect. The second inner frame 7 can support the sealing gasket 5, thereby ensuring the strength of the sealing gasket 5 structure. Under the buffering effect of the elastic buffer part 701, the structure of the sealing gasket 5 can be combined to improve the buffering effect of the external force, thereby improving the buffering effect of the sealing gasket 5 on the sleeve 2 and the box body 1. In addition, a reset plate 702 is also arranged at the middle position of the second inner frame 7. The reset plate 702 is an elastic sheet structure. Since the second inner frame 7 The overall structure is relatively long, and the middle is a hollow structure. Therefore, in order to make the second inner skeleton 7 better support the sealing gasket 5, a reset plate 702 is set at the middle hollow position of the second inner skeleton 7. The reset plate 702 can support the upper and lower ends of the second inner skeleton 7. Because the reset plate 702 is also an elastic structure, it can be combined with the elastic buffer part 701 to improve the buffering and absorption of external forces. When there is no external force squeezing, the reset plate 702 can be combined with the elastic buffer part 701 to quickly restore the deformation of the second inner skeleton 7, thereby ensuring the support effect on the sealing gasket 5. By setting the second inner skeleton 7, the overall structure of the sealing gasket 5 can be supported, thereby ensuring the sealing of the sealing gasket 5 between the box body 1 and the sleeve 2, and the second inner skeleton 7 has a buffering effect on external forces. This effect, combined with the structure of the sealing gasket 5, can further improve the buffering effect between the sleeve 2 and the box body 1, thereby ensuring the safety of the equipment during use.

[0051] In this embodiment, if Figures 2 to 6 , Figure 8 , Fig.11 and Fig.12As shown, the other end of the sealing gasket 5 is installed with a third inner frame 8 and a fourth inner frame 9, the third inner frame 8 is fixedly connected with a first extrusion portion 801, the third inner frame 8 is fixedly connected with a first recessed portion 802 which matches the shape of the positioning groove 102, the fourth inner frame 9 is fixedly connected with a second extrusion portion 901 which matches the contour of the first adapter portion 504, the fourth inner frame 9 is fixedly connected with a third extrusion portion 902, the fourth inner frame 9 is fixedly connected with a second recessed portion 903 which matches the shape of the positioning groove 102, the third inner frame 8 and the fourth inner frame 9 are in conflict with each other, and the third inner frame 8 and the fourth inner frame 9 are fixedly connected with each other. The skeleton 9 is an elastic structure, the second adapter portion 505 of the sealing gasket 5 is inserted and clamped into the positioning groove 102, the first adapter portion 504 conflicts with the support plate 202, and the third inner skeleton 8 and the fourth inner skeleton 9 are arranged at the positions of the first adapter portion 504 and the second adapter portion 505. The third inner skeleton 8 and the fourth inner skeleton 9 are not only elastic structure frames, but also conflict and squeeze together. The third inner skeleton 8 and the fourth inner skeleton 9 can not only fill the gap between the first adapter portion 504 and the second adapter portion 505, but also support the sealing gasket 5 at the first adapter portion 504 and the second adapter portion 505. Specifically, the first recessed portion 802 on the third inner frame 8 and the second recessed portion 903 on the fourth inner frame 9 are both snapped into the second adapter portion 505, and the first extrusion portion 801 and the third extrusion portion 902 are extruded against each other. Under the extrusion effect, the third inner frame 8 and the fourth inner frame 9 can support the sealing gasket 5 at the position of the second adapter portion 505, so that the second adapter portion 505 can better cooperate with the contour of the positioning groove 102, thereby improving the firmness of the installation of the sealing gasket 5. When squeezed by external force, the third inner frame 8 and the fourth inner frame 9 will cooperate with the shape of the sealing gasket 5 to squeeze each other together and absorb synchronously. The squeezing force is reduced, thereby improving the stability between the sleeve 2 and the box body 1. The above structural setting enables the third inner skeleton 8 and the fourth inner skeleton 9 to support the sealing gasket 5 at the position of the second adapter part 505. The effect achieved after the support can improve the firmness of the fit between the sealing gasket 5 and the positioning groove 102, thereby making the card connection between the sealing gasket 5 and the box body 1 more firm and stable, and improving the sealing effect of the sealing gasket 5. In addition, when squeezed by external force, the third inner skeleton 8 and the fourth inner skeleton 9 can cooperate with the structure of the sealing gasket 5 to synchronously absorb and buffer the external force, thereby improving the stability and safety of the equipment and reducing the leakage rate.

[0052] The working principle of the technical solution provided by the present invention is as follows: when in use, the sealing gasket 5 is first fixed on the box body 1. Since the contour of the second adapter portion 505 of the sealing gasket 5 coincides with the contour of the positioning groove 102, the user can use the second adapter portion 505 to insert and fix the sealing gasket 5 in the positioning groove 102. The third inner frame 8 and the fourth inner frame 9 are arranged at the positions of the first adapter portion 504 and the second adapter portion 505. The third inner frame 8 and the fourth inner frame 9 are not only elastic structures, but also mutually abut and squeeze together. The third inner frame 8 and the fourth inner frame 9 can not only fill the first adapter portion 504 and the third inner frame 8 and the fourth inner frame 9. The gap between the two adapter parts 505 can also support the sealing gasket 5 at the first adapter part 504 and the second adapter part 505, so that the second adapter part 505 can better cooperate with the contour of the positioning groove 102, thereby improving the firmness of the installation of the sealing gasket 5. When squeezed by external force, the third inner skeleton 8 and the fourth inner skeleton 9 will cooperate with the shape of the sealing gasket 5 to squeeze each other together, and simultaneously absorb the squeezing force, thereby improving the stability between the sleeve 2 and the box body 1. This arrangement makes the installation position of the sealing gasket 5 unique, thereby ensuring the sealing effect of the sealing gasket 5 on the sleeve 2 and the box body 1.

[0053] After the position of the sealing gasket 5 is fixed, the user can install the sleeve 2. A groove for inserting the sleeve 2 is reserved on the surface of the box body 1. When installing the sleeve 2, the user needs to first insert the bottom of the sleeve 2 into the groove on the surface of the box body 1. During the continuous insertion process, the support plate 202 will gradually approach the first adapter part 504 on the surface of the sealing gasket 5 until the support plate 202 and the first adapter part 504 are in contact with each other. At this time, the sleeve 2 is inserted.

[0054] After the sleeve 2 is plugged in, the user needs to place the bite plate 4 on the top of the sleeve 2, and then screw in the nut on the top of the bite plate 4, and use the nut and the bite plate 4 to install and fix the sleeve 2, and the first inner skeleton 6 is installed on the end of the sealing gasket 5 close to the side plate 401. The setting of the first inner skeleton 6 can cooperate with the structure of the sealing gasket 5 to achieve the guiding positioning of the side plate 401, and in the process of installing the sleeve 2, the squeezing force between the sleeve 2 and the box body 1 is used to further improve the firmness of the fit between the side plate 401 and the sealing gasket 5, thereby improving the sealing effect of the sealing gasket 5 on the side plate 401 and realizing the external sealing of the sleeve 2 and the box body 1. In addition, in the use of the sleeve 2, the first inner skeleton 6 cooperates with the structural setting of the sealing gasket 5 to absorb and buffer the unstable force between the sleeve 2 and the box body 1, thereby improving the sealing effect between the equipment, reducing the equipment leakage rate, and improving product safety.

[0055] The second inner skeleton 7 is arranged at the middle position of the sealing gasket 5, which can support the overall structure of the sealing gasket 5, thereby ensuring the sealing performance of the sealing gasket 5 between the box body 1 and the sleeve 2, and the second inner skeleton 7 has a buffering effect on external forces. This effect, combined with the structure of the sealing gasket 5, can further improve the buffering effect between the sleeve 2 and the box body 1, thereby ensuring the safety of the equipment during use.

[0056] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-voltage column mounted circuit breaker bushing buffer positioning sealing structure, comprising a box body, characterized in that: The box body is fixedly connected with a sleeve, the inner circumference of the box body is fixedly connected with a positioning plate, the positioning plate is provided with a positioning groove, a terminal is fixedly inserted in the sleeve, a mounting plate is fixedly connected with the outer wall of the bottom of the sleeve, a support plate is fixedly connected with one end of the bottom of the sleeve, a bite plate is screwed and fixed with the top of the mounting plate by bolts and nuts, and a side plate is fixedly connected with the bottom of the bite plate; A sealing assembly, the sealing assembly is used to perform sealing processing between the box body and the sleeve, and the sealing assembly is respectively connected to the positioning groove and the support plate; The sealing assembly comprises a sealing gasket inserted in the positioning groove, a first inner frame is installed in one end of the sealing gasket, a second inner frame is installed in the middle position of the sealing gasket, and a third inner frame and a fourth inner frame are installed in the other end of the sealing gasket; A conical groove is formed on one end of the sealing gasket close to the first inner frame, a reinforcing rib is fixedly connected to the sealing gasket, a first adapter is fixedly connected to a position of the sealing gasket close to the support plate, and a second adapter is fixedly connected to a position of the sealing gasket close to the positioning groove; A raised portion is fixedly connected to the top of the first inner frame, arc-shaped clamping portions are fixedly connected to both sides of the raised portion, an elastic bending portion is fixedly connected to one end of the arc-shaped clamping portion, and a weakened groove is provided at the connection position between the raised portion and the arc-shaped clamping portion; The elastic bending portion is in an M-shaped shape and is an elastic curved surface structure. An adapting slot is provided at the bottom of the elastic bending portion, and an adapting plug-in block matching the shape of the adapting slot is fixedly connected to the inner wall of the sealing gasket; The protruding portion, the arc-shaped clamping portion and the elastic bending portion are an integrally manufactured structure; Both sides of the second inner frame are fixedly connected with elastic buffer parts, and a reset plate is fixedly connected at the middle position of the second inner frame, and both the reset plate and the elastic buffer part are curved elastic structures; The third inner frame is fixedly connected with a first extrusion portion, and the third inner frame is fixedly connected with a first recessed portion that matches the shape of the positioning groove; The fourth inner frame is fixedly connected with a second extrusion portion matching the contour of the first adapter portion, the fourth inner frame is fixedly connected with a third extrusion portion, and the fourth inner frame is fixedly connected with a second recessed portion matching the shape of the positioning groove; The third inner frame and the fourth inner frame are in conflict with each other, and both the third inner frame and the fourth inner frame are elastic structures.

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