Pole and environment-friendly gas insulated circuit breaker

Abstract

The invention relates to the field of pole circuit breakers, in particular to a pole and an environment-friendly gas insulated circuit breaker, which comprises a shell, an arc extinguish chamber is arranged in the shell, the inner top end of the arc extinguish chamber is fixedly connected with a static conducting rod, and the inner bottom end of the arc extinguish chamber is slidably connected with a movable conducting rod; the upper power connection seat is fixedly connected to the top end of the arc extinguish chamber; the lower power connection seat is fixedly connected to the bottom end of the arc extinguish chamber, and the lower power connection seat is in sliding connection with the movable conducting rod; through the arrangement of the insulating shell, the insulating rod and the clamping mechanism, clamping is started in the process that the insulating rod moves upwards to a designated position, the insulating rod and the insulating shell are clamped, and in the process that the insulating rod moves downwards to be reset to the designated position, the clamping mechanism is closed, and clamping of the insulating rod and the insulating shell is canceled, so that when power needs to be cut off, the insulating rod and the insulating shell are clamped, and the power is cut off. And the movable conducting rod and the static conducting rod can be quickly separated.

Description

Technical Field

[0001] The invention relates to the field of pole circuit breakers, and in particular to a pole and environmentally friendly gas insulated circuit breaker. Background Art

[0002] The solid-sealed pole is a technology that embeds the vacuum interrupter and the related conductive parts of the circuit breaker into epoxy resin or other easily solidified solid insulating materials to form an integral component. This design makes the entire circuit breaker pole an indivisible whole, thereby improving its reliability and insulation performance.

[0003] For example, the invention patent with application number CN202410814090.1 discloses an assembly structure of a sealed pole, including a shell, in which a moving conductive rod, an insulating pull rod, a guide assembly and a connecting assembly are arranged, the guide assembly includes a guide part and a connecting block, the connecting block is detachably connected to the insulating pull rod, the connecting block is rotatably assembled with the guide part, the guide part slides along the axial direction of the shell, the connecting assembly includes a connecting ring 1, a connecting ring 2 and a connecting plate, the connecting ring 1 is movably sleeved on the moving conductive rod, the connecting ring 2 is arranged on the lower side of the moving conductive rod, a sliding block is slidably provided on the connecting plate, and the sliding block is connected to the connecting ring 1 and the connecting ring 2 through the pull rod at the same time, and a limit assembly is also provided on the moving conductive rod, when the insulating pull rod is assembled with the moving conductive rod, the limit assembly limits the movement of the moving conductive rod.

[0004] In view of the above case, in the prior art, in order to make the moving conductive rod and the static conductive rod fully contact and not get stuck, a spring needs to be arranged between the moving conductive rod and the insulating pull rod; However, in the process of the insulating pull rod pulling the moving conductive rod downward to separate the moving conductive rod from the static conductive rod, the insulating pull rod needs to first overcome the elastic expansion and contraction distance of the spring before it can pull the moving conductive rod to separate the moving conductive rod from the static conductive rod. If the elastic expansion and contraction distance of the spring is large, it is easy to cause the circuit to be disconnected in time, which may easily cause safety hazards.

[0005] To this end, the present invention proposes a pole and an environmentally friendly gas insulated circuit breaker to solve the above problems. Summary of the invention

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a pole and an environmentally friendly gas insulated circuit breaker, comprising: a housing, an arc extinguishing chamber is arranged in the housing, a static conductive rod is fixedly connected to the inner top end of the arc extinguishing chamber, and a dynamic conductive rod is slidably connected to the inner bottom end of the arc extinguishing chamber; An upper electric socket, wherein the upper electric socket is fixedly connected to the top of the arc extinguishing chamber; A lower electric connection seat, the lower electric connection seat is fixedly connected to the bottom end of the arc extinguishing chamber, and the lower electric connection seat is slidably connected to the moving conductive rod; An insulating shell, wherein the insulating shell is fixedly connected to the top end of the movable conductive rod, an insulating rod is slidably connected inside the insulating shell, and a first spring is fixedly connected between the insulating rod and the insulating shell; The clamping mechanism is activated when the insulating rod moves upward to a specified position to clamp the insulating rod and the insulating shell, and is closed when the insulating rod moves downward to reset to the specified position to cancel the clamping of the insulating rod and the insulating shell.

[0007] Preferably, the clamping mechanism comprises: Two clamping grooves, the two clamping grooves are symmetrically arranged on the inner side wall of the insulating shell; An installation notch, the installation notch being provided at the top end of the insulating rod; Two clamping blocks, the clamping blocks are symmetrically slidably connected in the installation slots, and a second spring is fixedly connected between the clamping blocks and the installation slots; A first clamping pin, wherein the first clamping pin is slidably connected to an end of the clamping block, and a third spring is fixedly connected between the first clamping pin and the clamping block; A pushing component, in the process of the insulating rod moving upward to the specified position, the pushing component pushes the two L-shaped clamping blocks, so that the two clamping blocks are respectively inserted into the clamping grooves at the corresponding positions, so that the insulating rod and the insulating shell are clamped together; in the process of the insulating rod moving downward and resetting to the specified position, the pushing component cancels the pushing action, and under the action of the second spring, the clamping block is reset, so that the insulating rod and the insulating shell are canceled.

[0008] Preferably, the pushing assembly comprises: Two pushing blocks, the two pushing blocks are respectively fixedly connected to the top of the clamping block, and the top of the pushing block is provided with a first pushing inclined surface; Two L-shaped push seats, two L-shaped push blocks corresponding to the upper part of the two push blocks are slidably connected to the top of the insulating shell, and the bottom end of the L-shaped push seat is provided with a second push inclined surface adapted to the first push inclined surface; An insulating plate, the insulating plate is fixedly connected to the bottom end of the lower electric socket; A driving plate, the top of which is fixedly connected to the bottom of the insulating plate, a driving groove is provided on the side wall of the driving plate, the driving groove has an oblique groove and a straight groove, and the end of the L-shaped pushing seat is fixedly connected to a driving pin, which is slidably connected in the driving groove.

[0009] Preferably, a plurality of slide bars, wherein an array of the plurality of slide bars is slidably connected to the bottom end of the insulating shell; An annular sliding chassis, wherein the annular sliding chassis is slidably connected to the bottom end of the insulating shell, the annular sliding chassis is slidably connected to the outer side wall of the insulating rod, and the top end of the annular sliding chassis is fixedly connected to the top ends of the plurality of sliding rods; The clamping assembly is used to clamp the annular sliding chassis and the insulating shell. When the clamping block is not slid into the clamping groove, the clamping assembly is opened to clamp the annular sliding chassis and the insulating shell. When the clamping block is slid into the clamping groove, the clamping assembly is closed to cancel the clamping of the annular sliding chassis and the insulating shell.

[0010] Preferably, the clamping assembly comprises: Two clearance grooves, the two clearance grooves are arranged on the outer side wall of the insulating shell at positions corresponding to the two clamping grooves, and the clamping grooves are connected with the clearance grooves; Two sliding frames, the two sliding frames are symmetrically fixedly connected to the top of the annular sliding chassis, and the top of the sliding frame and the side walls of the top of the two sliding frames are respectively slidably connected in the two give-way grooves; Two L-shaped sliding seats, the two L-shaped sliding seats are respectively slidably connected to the top ends of the two sliding frames, a fourth spring is fixedly connected between the L-shaped sliding seats and the sliding frames, and the side walls of the two L-shaped sliding seats are respectively opposite to the outer side walls of the first clamping pin; Two clamping frames, the two clamping frames are respectively fixedly connected in two L-shaped sliding seats, and the top ends of the clamping frames are fixedly connected with second clamping pins; Two snap-in slides, the two snap-in slides corresponding to the positions of the two second snap-in pins are opened on the outer wall of the insulating shell, and a snap-in groove is opened at the bottom end of the snap-in slide, and the depth of the snap-in groove is greater than the depth of the snap-in slide.

[0011] Preferably, the elastic coefficient of the third spring is greater than the elastic coefficient of the fourth spring.

[0012] Preferably, a stopper is slidably connected to the array in the inclined groove, a top of the stopper is symmetrically provided with an arc-shaped pushing surface, and a fifth spring is fixedly connected between the stopper and the inner wall of the driving plate.

[0013] Preferably, the arc extinguishing chamber comprises: a ceramic shell, the top end of the static conductive rod is fixedly connected to the inner top end of the ceramic shell, and the bottom end of the dynamic conductive rod is slidably connected to the bottom end of the ceramic shell.

[0014] Preferably, it also includes a bellows, the bottom end of which is fixedly connected to the bottom end of the ceramic shell, and the bellows is fixedly connected to the moving conductive rod.

[0015] To solve the above problems, the present invention also proposes an environmentally friendly gas insulated circuit breaker, comprising the above-mentioned pole and a shielding barrel, wherein the shielding cover is fixedly connected to the inner wall of the ceramic shell, and the movable conductive rod is slidably sealed with the bottom end of the shielding cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention provides an insulating shell, an insulating rod and a clamping mechanism. When the insulating rod moves upward to a specified position, the clamping is started to clamp the insulating rod and the insulating shell. When the insulating rod moves downward to reset to the specified position, the clamping mechanism is closed to cancel the clamping of the insulating rod and the insulating shell, thereby realizing the rapid separation of the dynamic conductive rod and the static conductive rod when power needs to be cut off.

[0017] 2. The present invention provides an annular sliding chassis and a clamping assembly. When the clamping block slides and inserts into the clamping groove, the clamping assembly is closed, so that the annular sliding chassis and the insulating shell are uncoupled. Under the elastic action of the first spring, the annular sliding chassis moves upward, thereby reducing the elastic pressure of the first spring. On the one hand, the pushing pressure on the moving conductive rod is reduced, reducing the pressure wear of the moving conductive rod and the static conductive rod. On the other hand, the compression distance of the first spring is reduced, which is conducive to avoiding the possibility of the moving conductive rod moving upward and temporarily contacting the static conductive rod when the insulating rod drives the insulating shell to move downward synchronously to separate the insulating shell and the insulating rod, thereby reducing safety hazards.

[0018] 3. The present invention sets a plurality of blocks. After the insulating rod and the insulating shell are separated, the driving pin is located in the inclined groove. Under the obstruction of the blocks, the upward thrust of the insulating shell by the first spring is resisted, thereby further reducing the possibility of transient contact between the dynamic conductive rod and the static conductive rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the connection between the insulating shell and the insulating rod in the present invention; Figure 4 is a cross-sectional view of the insulating shell of the present invention; Figure 5 for Figure 4 Enlarged view of point A in the middle; Figure 6 It is a schematic diagram of the connection between the insulating rod and the L-shaped pushing seat in the present invention; Figure 7 for Figure 6 Enlarged view of point B in the middle; Figure 8 for Figure 6 Enlarged view of point C in the middle; Fig. 9 is a three-dimensional diagram of the insulating shell of the present invention; Fig.10 It is a side sectional view of the driving plate in the present invention.

[0020] In the figure: shell 1, ceramic shell 2, shielding barrel 3, bellows 4, static conductive rod 5, dynamic conductive rod 6, upper electric seat 7, lower electric seat 8, insulating shell 9, snap-in groove 901, give way groove 902, snap-in slide groove 903, snap-in groove 904, insulating rod 10, installation notch 1001, first spring 11, snap-in block 12, second spring 13, first snap-in pin 14, third spring 15, push block 16, L-shaped push seat 17, drive pin 1701, insulating plate 18, drive plate 19, oblique groove 1901, straight groove 1902, block 1903, fifth spring 1904, slide rod 20, annular sliding chassis 21, sliding frame 22, L-shaped sliding seat 23, fourth spring 24, snap-in frame 25, second snap-in pin 2501. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] like Figures 1 to 10 A pole as shown, comprising: A housing 1 is provided with an arc extinguishing chamber, a static conductive rod 5 is fixedly connected to the inner top of the arc extinguishing chamber, and a dynamic conductive rod 6 is slidably connected to the inner bottom of the arc extinguishing chamber; The upper electric base 7 is fixedly connected to the top of the arc extinguishing chamber; The lower electric base 8 is fixedly connected to the bottom end of the arc extinguishing chamber, and the lower electric base 8 is slidably connected to the moving conductive rod 6; An insulating shell 9, the insulating shell 9 is fixedly connected to the top of the movable conductive rod 6, an insulating rod 10 is slidably connected in the insulating shell 9, and a first spring 11 is fixedly connected between the insulating rod 10 and the insulating shell 9; The clamping mechanism is activated when the insulating rod 10 moves upward to the specified position, and the insulating rod 10 is clamped with the insulating shell 9. When the insulating rod 10 moves downward to the specified position, the clamping mechanism is closed, and the insulating rod 10 and the insulating shell 9 are unclamped. The card connection mechanism includes: Two snap-fitting grooves 901, which are symmetrically arranged on the inner side wall of the insulating shell 9; An installation notch 1001 is provided at the top of the insulating rod 10; Two clamping blocks 12, the clamping blocks 12 are symmetrically slidably connected in the installation slot 1001, and a second spring 13 is fixedly connected between the clamping blocks 12 and the installation slot 1001; A first clamping pin 14, the first clamping pin 14 is slidably connected to an end of the clamping block 12, and a third spring 15 is fixedly connected between the first clamping pin 14 and the clamping block 12; A pushing component, in the process of the insulating rod 10 moving upward to the specified position, the pushing component pushes the two L-shaped clamping blocks 12, so that the two clamping blocks 12 are respectively inserted into the clamping grooves 901 at the corresponding positions, so that the insulating rod 10 is clamped with the insulating shell 9, and in the process of the insulating rod 10 moving downward and resetting to the specified position, the pushing component cancels the pushing action, and under the action of the second spring 13, the clamping block 12 is reset, and the insulating rod 10 and the insulating shell 9 are canceled; A first pushing inclined surface is formed at the top of the pushing block 16; Two L-shaped push seats 17, two L-shaped push blocks 16 corresponding to the upper part of the two push blocks 16 are slidably connected to the top of the insulating shell 9, and the bottom end of the L-shaped push seat 17 is provided with a second push inclined surface adapted to the first push inclined surface; An insulating plate 18, the insulating plate 18 is fixedly connected to the bottom end of the lower electric socket 8; A driving plate 19, the top of which is fixedly connected to the bottom of the insulating plate 18, a driving groove is provided on the side wall of the driving plate 19, the driving groove has an oblique groove 1901 and a straight groove 1902, and a driving pin 1701 is fixedly connected to the end of the L-shaped pushing seat 17, and the driving pin 1701 is slidably connected in the driving groove; Specifically, in the prior art, in the process of the insulating pull rod pulling the conductive rod 6 downward to separate the movable conductive rod 6 from the static conductive rod 5, the insulating pull rod needs to overcome the elastic expansion and contraction distance of the spring before it can pull the movable conductive rod 6 to separate the movable conductive rod 6 from the static conductive rod 5. If the elastic expansion and contraction distance of the spring is huge, it is easy to cause the circuit to be disconnected in time, which is easy to cause safety hazards. The technical solution can solve the above problems. The specific operation is as follows: when power is required, the insulating rod 10 is driven to move upward by an external driving device (not shown in the figure), and under the elastic support of the first spring 11, the insulating shell 9 drives the movable conductive rod 6 to move upward, and in the insulating shell During the upward movement of 9, the driving pin 1701 at the end of the L-shaped push seat 17 moves upward along the driving groove. The driving pin 1701 first moves along the inclined groove 1901 and then enters the straight groove 1902. Under the drive of the inclined groove 1901, the L-shaped push seat 17 moves toward the clamping block 12, and waits until the dynamic conductive rod 6 contacts the static conductive rod 5. Under the limit of the static conductive rod 5, the insulating shell 9 stops in the subsequent process. At this time, the driving pin 1701 stays at a certain position of the straight groove 1902. Then, the insulating rod 10 continues to move upward under the drive of the driving device, so that the top end of the insulating rod 10 moves upward along the inside of the insulating shell 9, and the first spring 11 is compressed; The clamping block 12 and the pushing block 16 move upward, and then the pushing block 16 is pushed by the L-shaped pushing seat 17 that has been moved to the specified position in advance, so that the clamping block 12 moves into the clamping groove 901, and the second spring 13 is compressed. In the process of the clamping block 12 moving into the clamping groove 901, the first clamping pin 14 is squeezed by the inner wall of the insulating shell 9, and the first clamping pin 14 approaches the end of the first clamping block 12, so that the third spring 15 is compressed. After the first clamping pin 14 moves to the clamping groove 901, under the elastic action of the third spring 15, the first clamping pin 14 is clamped into the clamping groove 901, completing the clamping action of the insulating rod 10 and the insulating shell 9; When a circuit fault occurs and causes a short circuit, the driving device moves the insulating rod 10 downward. Since the insulating rod 10 and the insulating shell 9 are engaged with each other at this time, when the insulating rod 10 moves downward, the insulating shell 9 drives the moving conductive rod 6 to move downward synchronously, thereby realizing the rapid separation of the moving conductive rod 6 and the static conductive rod 5. In the process of the insulating rod 10 driving the insulating shell 9 to move downward synchronously, the driving pin 1701 moves along the straight groove 1902. After the dynamic conductive rod 6 moves away from the static conductive rod 5, the driving pin 1701 slides along the inclined groove 1901. Driven by the inclined groove 1901, the L-shaped pushing seat 17 moves away from the pushing block 16, canceling the squeezing and pushing effect on the pushing block 16. Subsequently, under the action of the second spring 13, the clamping block 12 moves from the clamping groove 901, so that the insulating rod 10 and the insulating shell 9 are canceled and separated.

[0023] As a further embodiment of the present invention, it also includes: A plurality of slide bars 20, wherein an array of the plurality of slide bars 20 is slidably connected to the bottom end of the insulating shell 9; An annular sliding chassis 21, the annular sliding chassis 21 is slidably connected to the bottom end of the insulating shell 9, the annular sliding chassis 21 is slidably connected to the outer wall of the insulating rod 10, and the top of the annular sliding chassis 21 is fixedly connected to the top ends of the plurality of sliding rods 20; The clamping assembly is used to clamp the annular sliding chassis 21 and the insulating shell 9. When the clamping block 12 is not slidably inserted into the clamping groove 901, the clamping assembly is opened to clamp the annular sliding chassis 21 and the insulating shell 9. When the clamping block 12 is slidably inserted into the clamping groove 901, the clamping assembly is closed to cancel the clamping of the annular sliding chassis 21 and the insulating shell 9; The card assembly includes: Two clearance grooves 902, the two clearance grooves 902 are opened on the outer wall of the insulating shell 9 at positions corresponding to the two clamping grooves 901, and the clamping grooves 901 are connected with the clearance grooves 902; Two sliding frames 22, the two sliding frames 22 are symmetrically fixedly connected to the top of the annular sliding chassis 21, and the top of the sliding frames 22 and the top side walls of the two sliding frames 22 are respectively slidably connected in the two clearance grooves 902; Two L-shaped sliding seats 23, the two L-shaped sliding seats 23 are respectively slidably connected to the top ends of the two sliding frames 22, a fourth spring 24 is fixedly connected between the L-shaped sliding seats 23 and the sliding frames 22, and the side walls of the two L-shaped sliding seats 23 are respectively opposite to the outer side walls of the first clamping pin 14; Two clamping frames 25, the two clamping frames 25 are respectively fixedly connected in the two L-shaped sliding seats 23, and the top of the clamping frame 25 is fixedly connected with a second clamping pin 2501; Two snap-in slides 903, the two snap-in slides 903 are provided on the outer wall of the insulating shell 9 at positions corresponding to the two second snap-in pins 2501, and a snap-in groove 904 is provided at the bottom of the snap-in slide 903, and the depth of the snap-in groove 904 is greater than the depth of the snap-in slide 903; Specifically, after the insulating rod 10 drives the insulating shell 9 to move downward synchronously so that the insulating shell 9 and the insulating rod 10 are separated, the insulating shell 9 will drive the moving conductive rod 6 to move upward due to the elastic action of the first spring 11. If the compression distance of the first spring 11 is too large, it will easily cause the moving conductive rod 6 and the static conductive rod 5 to make a temporary contact, which may easily cause a safety hazard. The technical solution can solve the above problem. The specific operation is as follows: by setting the annular sliding chassis 21 and the clamping assembly, when the insulating rod 10 drives the insulating shell 9 to move upward, the second clamping pin 2501 is located in the clamping groove 904, so that the annular sliding chassis 21 is clamped with the insulating shell 9, so that the annular sliding chassis 21, the insulating shell 9 and the insulating rod 10 move upward together; In the process of the first engaging pin 14 driven by the engaging block 12 to slide and insert into the engaging groove 901 (the first spring 11 is in a compressed state at this time), the L-shaped sliding seat 23 slides along the top of the sliding frame 22 under the push of the first engaging pin 14, and the fourth spring 24 is compressed. In the process of the L-shaped sliding seat 23 sliding, the engaging pin 2501 at the top of the engaging frame 25 is synchronously driven to move, so that the second engaging pin 2501 at the top of the engaging frame 25 is removed from the engaging groove 904, canceling the engaging effect of the annular sliding chassis 21 and the insulating shell 9. At this time, since the position of the insulating rod 10 is limited by the driving device and cannot move downward, in the first Under the elastic action of the spring 11, the annular sliding chassis 21 drives the sliding frame 22, the L-shaped sliding seat 23 and the clamping frame 25 to move upward along the clamping groove 903, thereby reducing the elastic pressure of the first spring 11. On the one hand, the pushing pressure on the dynamic conductive rod 6 is reduced, reducing the pressure wear of the dynamic conductive rod 6 and the static conductive rod 5. On the other hand, the compression distance of the first spring 11 is reduced, which is conducive to avoiding the possibility of the dynamic conductive rod 6 moving upward and briefly contacting the static conductive rod 5 when the insulating rod 10 drives the insulating shell 9 to move downward synchronously to separate the insulating shell 9 and the insulating rod 10, thereby reducing safety hazards.

[0024] It should be noted that the elastic coefficient of the third spring 15 is greater than the elastic coefficient of the fourth spring 24. Since the elastic coefficient of the third spring 15 is greater than the elastic coefficient of the fourth spring 24, the first locking pin 14 can overcome the effect of the fourth spring 24, thereby pushing the L-shaped sliding seat 23 to move.

[0025] As a further embodiment of the present invention, a stopper 1903 is slidably connected in the array in the inclined groove 1901, and a symmetrical arc-shaped pushing surface is opened on the top of the stopper 1903, and a fifth spring 1904 is fixedly connected between the stopper 1903 and the inner wall of the driving plate 19; Specifically, by setting a plurality of blocks 1903, after the insulating rod 10 and the insulating shell 9 are separated, the driving pin 1701 is located in the inclined groove 1901. Under the obstruction of the block 1903, it is helpful to resist the upward thrust of the first spring 11 pushing the insulating shell 9, thereby helping to further reduce the possibility of transient contact between the dynamic conductive rod 6 and the static conductive rod 5.

[0026] As a further embodiment of the present invention, the arc extinguishing chamber comprises: a ceramic shell 2, the top end of the static conductive rod 5 is fixedly connected to the inner top end of the ceramic shell 2, and the bottom end of the dynamic conductive rod 6 is slidably connected to the bottom end of the ceramic shell 2; It also includes a bellows 4, the bottom end of which is fixedly connected to the bottom end of the ceramic shell 2, and the bellows 4 is fixedly connected to the moving conductive rod 6; Specifically, by providing the bellows 4 , the sealing performance inside the ceramic shell 2 is improved, which helps to prevent the gas inside the ceramic shell 2 from leaking out.

[0027] To solve the above problems, the present invention also proposes an environmentally friendly gas insulated circuit breaker, comprising the above pole, and also comprising a shield barrel 3, the shield cover is fixedly connected to the inner wall of the ceramic shell 2, and the movable conductive rod 6 is slidably sealed with the bottom end of the shield cover; The shield is filled with insulating gas, such as nitrogen. Specifically, the shielding cover is provided to prevent arc splashing on one hand, and to prevent metal vapor generated by the arc from falling onto the surface of the bellows 4 and affecting the contraction of the bellows 4 on the other hand.

[0028] The working principle of the present invention is as follows: when power is required, the insulating rod 10 is driven to move upward by an external driving device (not shown in the figure), and under the elastic support of the first spring 11, the insulating shell 9 drives the moving conductive rod 6 to move upward. In the process of the insulating shell 9 moving upward, the driving pin 1701 at the end of the L-shaped pushing seat 17 moves upward along the driving groove, and the driving pin 1701 first moves along the inclined groove 1901 and then enters the straight groove 1902. Under the drive of the inclined groove 1901, the L-shaped pushing seat 17 moves toward the clamping block 12, and waits until the moving conductive rod 6 contacts the static conductive rod 5. Under the limitation of the static conductive rod 5, the insulating shell 9 stops in the subsequent process. At this time, the driving pin 1701 stays at a certain position of the straight groove 1902. Then, the insulating rod 10 continues to move upward under the drive of the driving device, so that the top end of the insulating rod 10 moves upward along the insulating shell 9, and the first spring 11 is compressed; The clamping block 12 and the pushing block 16 move upward, and then the pushing block 16 is pushed by the L-shaped pushing seat 17 that has been moved to the specified position in advance, so that the clamping block 12 moves into the clamping groove 901, and the second spring 13 is compressed. In the process of the clamping block 12 moving into the clamping groove 901, the first clamping pin 14 is squeezed by the inner wall of the insulating shell 9, and the first clamping pin 14 approaches the end of the first clamping block 12, so that the third spring 15 is compressed. After the first clamping pin 14 moves to the clamping groove 901, under the elastic action of the third spring 15, the first clamping pin 14 is clamped into the clamping groove 901, completing the clamping action of the insulating rod 10 and the insulating shell 9; When a circuit fault occurs and causes a short circuit, the driving device moves the insulating rod 10 downward. Since the insulating rod 10 and the insulating shell 9 are engaged with each other at this time, when the insulating rod 10 moves downward, the insulating shell 9 drives the moving conductive rod 6 to move downward synchronously, thereby realizing the rapid separation of the moving conductive rod 6 and the static conductive rod 5. In the process of the insulating rod 10 driving the insulating shell 9 to move downward synchronously, the driving pin 1701 moves along the straight groove 1902. After the dynamic conductive rod 6 moves away from the static conductive rod 5, the driving pin 1701 slides along the inclined groove 1901. Driven by the inclined groove 1901, the L-shaped pushing seat 17 moves away from the pushing block 16, canceling the squeezing and pushing effect on the pushing block 16. Subsequently, under the action of the second spring 13, the clamping block 12 moves from the clamping groove 901, so that the insulating rod 10 and the insulating shell 9 are canceled and separated.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A pole, characterized in that: include: A housing (1), wherein an arc extinguishing chamber is arranged in the housing (1), a static conductive rod (5) is fixedly connected to the inner top end of the arc extinguishing chamber, and a dynamic conductive rod (6) is slidably connected to the inner bottom end of the arc extinguishing chamber; An upper electric connection base (7), wherein the upper electric connection base (7) is fixedly connected to the top of the arc extinguishing chamber; A lower electric connection seat (8), the lower electric connection seat (8) is fixedly connected to the bottom end of the arc extinguishing chamber, and the lower electric connection seat (8) is slidably connected to the moving conductive rod (6); An insulating shell (9), the insulating shell (9) being fixedly connected to the top end of the movable conductive rod (6), an insulating rod (10) being slidably connected inside the insulating shell (9), and a first spring (11) being fixedly connected between the insulating rod (10) and the insulating shell (9); A clamping mechanism is activated when the insulating rod (10) moves upward to a specified position, clamping the insulating rod (10) and the insulating shell (9); and when the insulating rod (10) moves downward to reset to the specified position, the clamping mechanism is closed, canceling the clamping of the insulating rod (10) and the insulating shell (9).

2. A pole according to claim 1, characterized in that: The clamping mechanism comprises: Two clamping grooves (901), the two clamping grooves (901) being symmetrically arranged on the inner side wall of the insulating shell (9); A mounting notch (1001), wherein the mounting notch (1001) is provided at a top end of the insulating rod (10); Two clamping blocks (12), the clamping blocks (12) being symmetrically slidably connected in the mounting slot (1001), and a second spring (13) being fixedly connected between the clamping blocks (12) and the mounting slot (1001); a first clamping pin (14), the first clamping pin (14) being slidably connected to an end of the clamping block (12), and a third spring (15) being fixedly connected between the first clamping pin (14) and the clamping block (12); A pushing component, wherein the pushing component pushes two L-shaped clamping blocks (12) during the process of the insulating rod (10) moving upward to a specified position, so that the two clamping blocks (12) are respectively inserted into the clamping grooves (901) at corresponding positions, so that the insulating rod (10) and the insulating shell (9) are clamped together; when the insulating rod (10) moves downward to reset to the specified position, the pushing component cancels the pushing action, and under the action of the second spring (13), the clamping blocks (12) are reset, so that the insulating rod (10) and the insulating shell (9) are canceled.

3. A pole according to claim 2, characterized in that: The pushing component comprises: Two pushing blocks (16), the two pushing blocks (16) being respectively fixedly connected to the top end of the clamping block (12), and the top end of the pushing blocks (16) being provided with a first pushing inclined surface; Two L-shaped push seats (17), two L-shaped push blocks (16) corresponding to the upper parts of the two push blocks (16) are slidably connected to the top of the insulating shell (9), and the bottom end of the L-shaped push seat (17) is provided with a second push inclined surface adapted to the first push inclined surface; An insulating plate (18), the insulating plate (18) being fixedly connected to the bottom end of the lower electric socket (8); A driving plate (19), wherein the top end of the driving plate (19) is fixedly connected to the bottom end of the insulating plate (18), a driving groove is provided on the side wall of the driving plate (19), the driving groove having an oblique groove (1901) and a straight groove (1902), and a driving pin (1701) is fixedly connected to the end of the L-shaped pushing seat (17), and the driving pin (1701) is slidably connected in the driving groove.

4. A pole according to claim 2, characterized in that: Also includes: A plurality of sliding rods (20), wherein an array of the plurality of sliding rods (20) is slidably connected to the bottom end of the insulating shell (9); An annular sliding chassis (21), the annular sliding chassis (21) being slidably connected to the bottom end of the insulating shell (9), the annular sliding chassis (21) being slidably connected to the outer side wall of the insulating rod (10), and the top end of the annular sliding chassis (21) being fixedly connected to the top ends of a plurality of sliding rods (20); A snap-fit ​​assembly is used to snap-fit ​​the annular sliding chassis (21) and the insulating shell (9); when the snap-fit ​​block (12) is not slidably inserted into the snap-fit ​​groove (901), the snap-fit ​​assembly is opened, so that the annular sliding chassis (21) and the insulating shell (9) are snap-fitted; when the snap-fit ​​block (12) is slidably inserted into the snap-fit ​​groove (901), the snap-fit ​​assembly is closed, so that the annular sliding chassis (21) and the insulating shell (9) are no longer snap-fitted.

5. A pole according to claim 4, characterized in that: The clamping assembly comprises: Two clearance grooves (902), the two clearance grooves (902) being arranged on the outer side wall of the insulating shell (9) at positions corresponding to the two clamping grooves (901), and the clamping grooves (901) being in communication with the clearance grooves (902); Two sliding frames (22), the two sliding frames (22) are symmetrically fixedly connected to the top of the annular sliding chassis (21), the top of the sliding frames (22), and the top side walls of the two sliding frames (22) are respectively slidably connected in two clearance grooves (902); Two L-shaped sliding seats (23), the two L-shaped sliding seats (23) are respectively slidably connected to the top ends of the two sliding frames (22), a fourth spring (24) is fixedly connected between the L-shaped sliding seats (23) and the sliding frames (22), and the side walls of the two L-shaped sliding seats (23) are respectively opposite to the outer side walls of the first clamping pin (14); Two clamping frames (25), the two clamping frames (25) being fixedly connected in two L-shaped sliding seats (23) respectively, and the top ends of the clamping frames (25) being fixedly connected with second clamping pins (2501); Two snap-in slide grooves (903), the two snap-in slide grooves (903) corresponding to the positions of the two second snap-in pins (2501) are opened on the outer wall of the insulating shell (9), and a snap-in groove (904) is opened at the bottom end of the snap-in slide groove (903), and the depth of the snap-in groove (904) is greater than the depth of the snap-in slide groove (903).

6. A pole according to claim 5, characterized in that: The elastic coefficient of the third spring (15) is greater than the elastic coefficient of the fourth spring (24).

7. A pole according to claim 3, characterized in that: The inclined groove (1901) is slidably connected to a stopper (1903) in an array, the top of the stopper (1903) is symmetrically provided with an arc-shaped pushing surface, and a fifth spring (1904) is fixedly connected between the stopper (1903) and the inner wall of the driving plate (19).

8. The pole according to claim 1, characterized in that: The arc extinguishing chamber comprises: a ceramic shell (2), the top end of the static conductive rod (5) is fixedly connected to the inner top end of the ceramic shell (2), and the bottom end of the dynamic conductive rod (6) is slidably connected to the bottom end of the ceramic shell (2).

9. A pole according to claim 8, characterized in that: It also comprises a bellows (4), the bottom end of the bellows (4) being fixedly connected to the inner bottom end of the ceramic shell (2), and the bellows (4) being fixedly connected to the moving conductive rod (6).

10. An environmentally friendly gas insulated circuit breaker, comprising a pole as claimed in claim 8, and further comprising a shield barrel (3), wherein the shield cover is fixedly connected to the inner wall of the ceramic shell (2), and the movable conductive rod (6) is slidably sealed with the bottom end of the shield cover.

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