Molded case reclosing circuit breaker with voltage and load regulation

Abstract

The utility model discloses a molded case reclosing circuit breaker with voltage and load regulation, which comprises a circuit breaker main body, and the upper end face of the circuit breaker main body is hinged with a cover plate. An adjusting button is installed on the surface of the cover plate, lateral blocks are fixed to the two sides of the cover plate, a pressing rod is slidably connected to the middles of the lateral blocks in a penetrating mode, tooth blocks are fixed to the front side and the rear side of the pressing rod, and the tooth blocks are connected with gears in an engaged mode. A main shaft is fixed to the middle of the gear, and the two ends of the main shaft are connected with lateral block bearings. According to the plastic shell reclosing circuit breaker with voltage and load regulation, the cover plate can be conveniently opened to replace and maintain electronic elements in the circuit breaker main body, replacement can be carried out without using tools to disassemble screws and other methods, the operation is simple and convenient, meanwhile, the sealing performance between the circuit breaker main body and the cover plate can be improved, and the service life is prolonged. And dust and the like are prevented from entering the circuit breaker main body through a gap between the circuit breaker main body and the cover plate to influence normal operation of internal electronic components.

Description

Technical Field

[0001] The utility model relates to the technical field of reclosing circuit breakers, in particular to a molded case reclosing circuit breaker with voltage and load regulation. Background Art

[0002] The reclosing circuit breaker executes the upper end signal and has the functions of tripping and closing. At the same time, when combined with the smart meter, it realizes the functions of automatic tripping and power off for arrears and automatic closing and power supply for charging. For example, the patent with the publication number "CN208298774U" and the name of "Reclosing mechanism for small circuit breaker" includes a housing, and a power source, a drive disk and a rotating disk are arranged in the housing; the power source drives the drive disk to rotate through a first transmission mechanism, and the rotating disk is provided with a transmission rod for connecting to the circuit breaker handle that rotates synchronously. The drive disk drives the rotating disk to rotate through a second transmission mechanism, and a trigger is provided at an eccentric position on the drive disk, and the trigger is used to toggle a micro switch on the circuit board. The drive disk is also provided with a pusher, and the pusher is used to push the trip pin to trip. However, the above structure still has the following problems in actual use:

[0003] The above structure uses multiple sets of screws to install and fix the cover plate. Therefore, when the reclosing circuit breaker needs to be replaced and repaired, tools need to be used for replacement, which is time-consuming and labor-intensive. At the same time, the cover plate needs to be removed and placed separately. Therefore, when the reclosing circuit breaker is installed at a high place, it is inconvenient to remove the cover plate, and the practicality is poor.

[0004] Therefore, we proposed a molded case reclosing circuit breaker with voltage and load regulation to solve the above problems well. Utility Model Content

[0005] The purpose of the present utility model is to provide a molded case reclosing circuit breaker with voltage and load regulation to solve the problem raised in the above background technology that tools need to be used to replace the reclosing circuit breaker in the current market when it needs to be replaced and repaired, which is time-consuming and labor-intensive, and the cover plate needs to be removed and placed separately. Therefore, when the reclosing circuit breaker is installed at a high place, it is inconvenient to remove the cover plate, resulting in poor practicality.

[0006] To achieve the above object, the present invention provides the following technical solutions: a molded case reclosing circuit breaker with voltage and load regulation, comprising a circuit breaker body, wherein the upper end surface of the circuit breaker body is hingedly connected to a cover plate;

[0007] The cover plate is also provided with an adjustment button, and lateral blocks are fixed on both sides of the cover plate, and a pressing rod is slidably connected through the middle of the lateral blocks, and tooth blocks are fixed on the front and rear sides of the pressing rod, and the tooth blocks are meshed with the gears;

[0008] A main shaft is fixed in the middle of the gear, and both ends of the main shaft are connected to the lateral block bearings, and the lower end of the gear is fixedly connected to the clamping rod, and the clamping rod and the clamping plate form a clamping connection structure.

[0009] Preferably, two groups of the clamping rods are provided, and the clamping plates are fixed on both sides of the circuit breaker body.

[0010] Preferably, a connecting block is fixed to the outer side of the upper end of the pressing rod, and the lower end surface of the connecting block is fixed to the upper end of the return spring, and the lower end of the return spring is fixedly connected to the lateral block.

[0011] Preferably, a heat dissipation port is provided on the rear side of the circuit breaker body, and a dustproof net is provided on the outer side of the heat dissipation port.

[0012] Preferably, two groups of pressing rods are provided, and a row of tooth blocks are vertically and evenly spaced on the front and rear sides of the two groups of pressing rods.

[0013] Preferably, a sealing strip is bonded to the lower end surface of the cover plate, and the sealing strip fits in the sealing groove, and the sealing groove is provided on the upper end surface of the circuit breaker body.

[0014] Preferably, two groups of adjustment buttons are provided, and the adjustment buttons are electrically connected to the electronic components inside the circuit breaker body through transmission lines.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the molded case reclosing circuit breaker with voltage and load regulation is not only easy to open the cover to replace and repair the electronic components inside the circuit breaker body, without the need to use tools to remove screws or other methods for replacement, which is simple and convenient, but also can improve the sealing between the circuit breaker body and the cover, preventing dust and the like from entering the circuit breaker body through the gap between the circuit breaker body and the cover and affecting the normal operation of the internal electronic components. The specific contents are as follows:

[0016] (1) The tooth block is driven down by the pressing rod, and the meshing connection between the tooth block and the gear is made to rotate. The gear rotates, and then the clamping rod is driven to rotate together, and then the clamping rod is rotated until it is no longer engaged with the clamping plate. At this time, the cover can be opened, and the cover can be opened to facilitate the replacement and maintenance of the electronic components in the circuit breaker body. There is no need to use tools to remove screws or other methods for replacement, which is simple and convenient;

[0017] Furthermore, the cover plate and the circuit breaker body are hinged, so that the cover plate will not separate from the circuit breaker body when it is removed, thereby solving the problem of inconvenient removal of the cover plate and preventing the cover plate from being lost.

[0018] The reset spring drives the connecting block to reset, and the connection block and the pressing rod are fixed together, thereby causing the pressing rod to move upward, so that the pressing rod drives the gear to reverse through the tooth block, and then the gear drives the fixed clamping rod to rotate until it contacts the clamping plate, thereby forming a clamping connection with the clamping plate, thereby achieving the effect of convenient installation;

[0019] (2) The sealing effect is achieved by the fit between the sealing groove and the sealing strip, thereby increasing the sealing between the circuit breaker body and the cover plate, preventing dust and the like from entering the circuit breaker body through the gap between the circuit breaker body and the cover plate and affecting the normal operation of the internal electronic components;

[0020] Furthermore, the circuit breaker body can dissipate heat through the heat dissipation port, and a dustproof net is provided on the surface of the heat dissipation port, which not only has the effect of heat dissipation, but also can prevent dust from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0022] Figure 2 This is a rear view structural diagram of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the cover plate of the utility model being opened;

[0024] Figure 4 This is a side structural diagram of the cover plate of the utility model;

[0025] Figure 5 For this utility model Figure 4 A in the middle is an enlarged structural diagram;

[0026] Figure 6 This is a schematic diagram of the main structure of the meshing gear and gear block of the utility model.

[0027] In the figure: 1. Circuit breaker body; 2. Cover plate; 3. Adjustment button; 4. Side block; 5. Press rod; 6. Tooth block; 7. Connecting block; 8. Reset spring; 9. Gear; 10. Main shaft; 11. Clamping rod; 12. Clamping plate; 13. Heat dissipation vent; 14. Sealing strip; 15. Sealing groove. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-6 , the utility model provides the following technical solutions:

[0030] Embodiment 1: In order to solve the problem in the prior art that when the reclosing circuit breaker needs to be replaced and repaired, tools need to be used for replacement, which is time-consuming and labor-intensive, and the cover plate 2 needs to be removed and placed separately, so when the reclosing circuit breaker is installed at a high place, it is inconvenient to take the cover plate 2, which is less practical, the following solution is disclosed, including a circuit breaker body 1, the upper end surface of the circuit breaker body 1 is hinged with a cover plate 2; and further comprising: an adjustment button 3 is installed on the surface of the cover plate 2, and the cover plate 2 A lateral block 4 is fixed on both sides of the lateral block 4, and a pressing rod 5 is slidably connected to the middle of the lateral block 4, and tooth blocks 6 are fixed on the front and rear sides of the pressing rod 5, and the tooth blocks 6 are meshed with the gear 9; a main shaft 10 is fixed in the middle of the gear 9, and both ends of the main shaft 10 are connected to the bearings of the lateral block 4, and the lower end of the gear 9 is fixedly connected to the card rod 11, and the card rod 11 and the card plate 12 form a card connection structure, two groups of card rods 11 are provided, and the card plate 12 is fixed to both sides of the circuit breaker body 1;

[0031] By pressing the pressing rod 5, the pressing rod 5 drives the tooth block 6 to descend together, and the meshing connection between the tooth block 6 and the gear 9 is entered to make the gear 9 rotate. The gear 9 rotates, and the clamping rod 11 is driven to rotate together, and the clamping rod 11 is rotated until it is no longer engaged with the clamping plate 12. At this time, the cover plate 2 can be opened, which makes it easy to open the cover plate 2 to replace and repair the electronic components in the circuit breaker body 1. There is no need to use tools to remove screws or other methods to replace, which is simple and convenient. At the same time, the cover plate 2 and the circuit breaker body 1 are hinged, so that the cover plate 2 will not be separated from the circuit breaker body 1 when it is removed, thereby solving the problem of the inconvenience of taking the cover plate 2 and avoiding the loss of the cover plate 2. At the same time, the circuit breaker body 1 can adjust the voltage and load by adjusting the button 3;

[0032] Embodiment 2: Different from embodiment 1, this embodiment facilitates the installation and fixing of the cover plate 2. Figure 2-Figure 6 A connecting block 7 is fixed to the outer side of the upper end of the pressing rod 5, and the lower end surface of the connecting block 7 is fixed to the upper end of the reset spring 8, and the lower end of the reset spring 8 is fixedly connected to the lateral block 4. There are two groups of pressing rods 5, and a row of tooth blocks 6 are vertically and evenly spaced on the front and rear sides of the two groups of pressing rods 5. There are two groups of adjustment buttons 3, and the adjustment buttons 3 are electrically connected to the electronic components inside the circuit breaker body 1 through a transmission line;

[0033] After the inspection and replacement is completed, it is only necessary to cover the cover plate 2, so that the cover plate 2 drives the lateral block 4 to move together, so that the lateral block 4 drives the clamping rod 11 close to the clamping plate 12, and the pressing rod 5 can be released at this time, so that the return spring 8 is no longer squeezed and drives the connecting block 7 to reset. Through the fixation between the connecting block 7 and the pressing rod 5, the pressing rod 5 moves upward, so that the pressing rod 5 drives the gear 9 to reverse through the tooth block 6, and then the gear 9 drives the fixed clamping rod 11 to rotate until it contacts the clamping plate 12, and then forms a clamping connection with the clamping plate 12, thereby achieving the effect of convenient installation;

[0034] Example 3: Different from Example 2, this example not only has the effect of heat dissipation, but also can prevent the entry of dust. Figure 2-Figure 3 A heat dissipation vent 13 is provided on the rear side of the circuit breaker body 1, and a dustproof net is provided on the outside of the heat dissipation vent 13. A sealing strip 14 is bonded to the lower end surface of the cover plate 2, and the sealing strip 14 fits in the sealing groove 15, and the sealing groove 15 is provided on the upper end surface of the circuit breaker body 1;

[0035] Moreover, when the cover plate 2 is closed, it also drives the sealing strip 14 to fit with the sealing groove 15. The fit between the sealing groove 15 and the sealing strip 14 achieves a sealing effect, thereby increasing the sealing between the circuit breaker body 1 and the cover plate 2, preventing dust and the like from entering the interior of the circuit breaker body 1 through the gap between the circuit breaker body 1 and the cover plate 2 and affecting the normal operation of the internal electronic components. At the same time, the circuit breaker body 1 can dissipate heat through the heat dissipation port 13, and a dustproof net is provided on the surface of the heat dissipation port 13, which not only achieves a heat dissipation effect but also prevents the entry of dust.

[0036] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A molded case reclosing circuit breaker with voltage and load regulation, comprising a circuit breaker body (1), wherein the upper end surface of the circuit breaker body (1) is hingedly connected to a cover plate (2); It is characterized in that Also includes: An adjustment button (3) is installed on the surface of the cover plate (2), and lateral blocks (4) are fixed on both sides of the cover plate (2), and a pressing rod (5) is slidably connected through the middle of the lateral block (4), and tooth blocks (6) are fixed on the front and rear sides of the pressing rod (5), and the tooth blocks (6) are meshed with the gear (9); A main shaft (10) is fixed in the middle of the gear (9), and both ends of the main shaft (10) are connected to the bearings of the lateral block (4). The lower end of the gear (9) is fixedly connected to the clamping rod (11), and the clamping rod (11) and the clamping plate (12) form a clamping connection structure.

2. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: Two groups of the clamping rods (11) are provided, and the clamping plates (12) are fixed on both sides of the circuit breaker body (1).

3. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: A connecting block (7) is fixed to the outer side of the upper end of the pressing rod (5), and the lower end surface of the connecting block (7) is fixed to the upper end of the return spring (8), and the lower end of the return spring (8) is fixedly connected to the lateral block (4).

4. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: A heat dissipation port (13) is provided on the rear side of the circuit breaker body (1), and a dustproof net is provided on the outside of the heat dissipation port (13).

5. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: The pressing rods (5) are provided in two groups, and a row of tooth blocks (6) are provided vertically and equidistantly on the front and rear sides of the two groups of pressing rods (5).

6. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: A sealing strip (14) is bonded to the lower end surface of the cover plate (2), and the sealing strip (14) fits into a sealing groove (15), and the sealing groove (15) is provided on the upper end surface of the circuit breaker body (1).

7. The molded case reclosing circuit breaker with voltage and load regulation according to claim 1, characterized in that: Two groups of adjustment buttons (3) are provided, and the adjustment buttons (3) are electrically connected to the electronic components inside the circuit breaker body (1) via a transmission line.

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