Residual-current circuit breaker with manual driving mechanism

Abstract

The utility model belongs to the field of residual-current circuit breakers, and particularly relates to a residual-current circuit breaker with a manual driving mechanism, which comprises a breaker body. The device body is rotationally connected with a connecting shaft through a connecting hole, a transmission shaft is arranged at the upper end of the connecting shaft, a first sleeve is installed on the outer wall of the transmission shaft, a fixing block is installed on the outer wall of the first sleeve, and a handle is installed on the side wall of the fixing block. Through the structural design of the transmission shaft and the like, the problems that the operation is relatively tedious and the production cost is increased due to the arrangement of a plurality of handles when a traditional residual-current circuit breaker is manually powered off by driving two or more handles are solved, so that the use effect of the circuit breaker is better.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage circuit breakers, in particular to a leakage circuit breaker with a manual driving mechanism. Background Technique

[0002] A leakage protector, abbreviated as a leakage switch, also called a leakage circuit breaker, is mainly used to protect against electric shock to the human body with fatal danger when a leakage fault occurs in a device, and has overload and short-circuit protection functions. It can be used to protect the overload and short-circuit of a circuit or a motor, and can also be used for the infrequent conversion and startup of a circuit under normal circumstances.

[0003] Traditional leakage circuit breakers are manually powered off by driving two or more handles, which is rather cumbersome to operate, and the setting of multiple handles will also increase the production cost. Secondly, the upper and lower covers of traditional leakage circuit breakers are connected to the circuit breaker body by screws, which is rather inconvenient for installation and disassembly. Therefore, a leakage circuit breaker with a manual driving mechanism is proposed to solve the above problems. Content of the Utility Model

[0004] In order to make up for the deficiencies of the prior art, traditional leakage circuit breakers are manually powered off by driving two or more handles, which is rather cumbersome to operate, and the setting of multiple handles will also increase the production cost. Secondly, the upper and lower covers of traditional leakage circuit breakers are connected to the circuit breaker body by screws, which is rather inconvenient for installation and disassembly. The utility model proposes a leakage circuit breaker with a manual driving mechanism.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a leakage circuit breaker with a manual driving mechanism, including a body; a connecting shaft is rotatably connected to the body through a connecting hole, a transmission shaft is arranged at the upper end of the connecting shaft, a first sleeve is installed on the outer wall of the transmission shaft, a fixing block is installed on the outer wall of the first sleeve, and a handle is installed on the side wall of the fixing block;

[0006] A second sleeve is installed on the outer wall of the transmission shaft and above the first sleeve, an installation hole is opened at the upper port of the second sleeve, a connecting rod is installed in the second sleeve through the installation hole, a first connecting plate is arranged at the other end of the connecting rod, a movable plate is rotatably connected to the first connecting plate through a connecting pin, and a limiting shaft is arranged at the upper end of the second sleeve.

[0007] Preferably, an upper cover is connected to the upper end of the body, a lower cover is connected to the lower end of the body, and the upper cover is rotatably connected to the upper end of the limiting shaft through a connecting hole.

[0008] Preferably, disassembly and assembly structures are installed on the left and right side walls of the upper cover and the lower cover and located at the front and rear sides;

[0009] The disassembly and assembly structure includes a fixed plate, on which a sliding groove is formed. The fixed plate is slidably connected with a slider through the sliding groove. An insertion block is installed on the side wall of the slider, and a triangular block is installed on the side wall of the insertion block.

[0010] The disassembly and assembly structure further includes a receiving plate. A connection groove corresponding to the insertion block is formed on the receiving plate. An installation groove is formed on the receiving plate on one side of the connection groove. A spring is installed in the receiving plate through the installation groove. The other end of the spring is provided with a trapezoidal block, and a pull rod is installed on the side wall of the trapezoidal block.

[0011] Preferably, the transmission shaft is arranged in a "triangle" shaft structure, and the connecting shaft and the limiting shaft are arranged in a "circle" shaft structure.

[0012] Preferably, the four upper fixed plates are fixedly connected to the side wall of the upper cover, and the four lower fixed plates are fixedly connected to the side wall of the lower cover.

[0013] Preferably, the four upper receiving plates and the four lower receiving plates are all connected to the side wall of the device body, and the receiving plate is slidably connected with the trapezoidal block through the installation groove.

[0014] Preferably, the triangular block is arranged in a right-angled triangle cross-section structure, the fixed plate is arranged in a right-angled trapezoid structure, and the triangular block and the trapezoidal block are arranged in a matching manner.

[0015] Preferably, a moving groove is formed on the receiving plate. The connection groove, the installation groove and the moving groove are communicated with each other. A limiting plate is arranged at one end of the fixed plate, and the width of the moving groove is smaller than that of the spring.

[0016] The beneficial effects of the present utility model are as follows:

[0017] 1. Through the structural design such as the transmission shaft, the handle drives the first sleeve to rotate, and through the transmission cooperation of the transmission shaft, the first sleeve synchronously drives the second sleeve to rotate. Using a single handle can realize the quick manual power-off of the entire circuit breaker, simplify the operation steps, and make the operation more convenient; the reduction of the number of handles optimizes the space occupied by the circuit breaker itself and also saves the production cost, thus solving the problem that the traditional leakage circuit breaker manually cuts off the power of the circuit breaker by driving two or more handles, which is more cumbersome to operate, and the setting of multiple handles will also increase the production cost, making the use effect of the circuit breaker better;

[0018] 2. Through the disassembly and assembly structure design of the present utility model, the insertion block brings the triangular block into the connection groove. The triangular block slides over the inclined surface of the trapezoidal block, and the trapezoidal block fixes the position of the triangular block, realizing the rapid installation of the device body and the upper cover or the device body and the lower cover; the pull rod drives the trapezoidal block into the installation groove, the trapezoidal block loses control of the triangular block, and the triangular block is moved to the outside of the connection groove, realizing the rapid disassembly of the device body and the upper cover or the device body and the lower cover. Thus, it replaces the way that the upper and lower covers of the traditional leakage circuit breaker are connected to the circuit breaker main body by screws, improving the installation and disassembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0020] Figure 1 is the external three-dimensional structure schematic diagram of the present utility model;

[0021] Figure 2 is the internal three-dimensional structure schematic diagram of the present utility model;

[0022] Figure 3 is the structure schematic diagram of the connecting shaft and the transmission shaft of the present utility model;

[0023] Figure 4 is the partial structure schematic diagram of the present utility model;

[0024] Figure 5 is the partial disassembled structure schematic diagram of the present utility model;

[0025] Figure 6 is the disassembly and assembly structure schematic diagram of the present utility model;

[0026] Figure 7 is the sectional view of the disassembly and assembly structure of the present utility model.

[0027] In the figure: 1, device body; 2, connecting shaft; 3, transmission shaft; 4, first sleeve; 5, fixed block; 6, handle; 7, second sleeve; 8, mounting hole; 9, connecting rod; 10, first connecting plate; 11, movable plate; 12, limiting shaft; 13, upper cover; 14, lower cover; 15, disassembly and assembly structure; 1501, fixed plate; 1502, chute; 1503, slider; 1504, insertion block; 1505, triangular block; 1506, bearing plate; 1507, connection groove; 1508, installation groove; 1509, spring; 1510, trapezoidal block; 1511, pull rod; 1512, movable groove; 1513, limiting plate. Detailed implementation mode

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

[0029] The following is a further detailed description of this application in conjunction with the attached Figures 1-7 This application will be further described in detail below.

[0030] The embodiment of this application discloses a leakage circuit breaker with a manual driving mechanism. Refer to Figure 1 and Figure 7 , a leakage circuit breaker with a manual driving mechanism includes a body 1; a connecting shaft 2 is rotatably connected to the body 1 through a connecting hole, a transmission shaft 3 is arranged at the upper end of the connecting shaft 2, a first sleeve 4 is installed on the outer wall of the transmission shaft 3, a fixing block 5 is installed on the outer wall of the first sleeve 4, and a handle 6 is installed on the side wall of the fixing block 5;

[0031] A second sleeve 7 is installed on the outer wall of the transmission shaft 3 and above the first sleeve 4. An installation hole 8 is opened at the upper port of the second sleeve 7. A connecting rod 9 is installed on the second sleeve 7 through the installation hole 8. The other end of the connecting rod 9 is provided with a first connecting plate 10. The first connecting plate 10 is rotatably connected to a movable plate 11 through a connecting pin. A limiting shaft 12 is arranged at the upper end of the second sleeve 7;

[0032] Among them, a transmission shaft 3 is arranged at the upper end of the connecting shaft 2. The handle 6 drives the first sleeve 4 to rotate, and through the transmission cooperation of the transmission shaft 3, the first sleeve 4 synchronously drives the second sleeve 7 to rotate. Using a single handle 6 to achieve rapid manual power-off of the entire circuit breaker simplifies the operation steps and makes the operation more convenient; the reduction in the number of handles 6 optimizes the space occupied by the circuit breaker itself and also saves production costs.

[0033] Refer to Figure 1 、 6 and Figure 7 , the upper end of the body 1 is connected with an upper cover 13, the lower end of the body 1 is connected with a lower cover 14, and the upper cover 13 is rotatably connected to the upper end of the limiting shaft 12 through a connecting hole; disassembly and assembly structures 15 are installed on the left and right side walls of the upper cover 13 and the lower cover 14 and located on the front and rear sides;

[0034] The disassembly and assembly structure 15 includes a fixing plate 1501, a sliding groove 1502 is opened on the fixing plate 1501, a slider 1503 is slidably connected to the fixing plate 1501 through the sliding groove 1502, a plug 1504 is installed on the side wall of the slider 1503, and a triangular block 1505 is installed on the side wall of the plug 1504;

[0035] The disassembly and assembly structure 15 further includes a receiving plate 1506. A connecting groove 1507 is provided on the receiving plate 1506 corresponding to the insertion block 1504. An installation groove 1508 is provided on the receiving plate 1506 on one side of the connecting groove 1507. A spring 1509 is installed on the receiving plate 1506 through the installation groove 1508. The other end of the spring 1509 is provided with a trapezoidal block 1510. A pull rod 1511 is installed on the side wall of the trapezoidal block 1510.

[0036] Among them, the disassembly and assembly structure 15 is installed on the left and right side walls of the upper cover 13 and the lower cover 14 and located on the front and rear sides. The insertion block 1504 brings the triangular block 1505 into the connecting groove 1507. The triangular block 1505 slides over the inclined surface of the trapezoidal block 1510, and the trapezoidal block 1510 fixes the position of the triangular block 1505, realizing the rapid installation of the appliance body 1 and the upper cover 13 or the appliance body 1 and the lower cover 14; the pull rod 1511 drives the trapezoidal block 1510 into the installation groove 1508. The trapezoidal block 1510 loses control of the triangular block 1505, and moves the triangular block 1505 to the outside of the connecting groove 1507, realizing the rapid disassembly of the appliance body 1 and the upper cover 13 or the appliance body 1 and the lower cover 14, thus replacing the traditional way that the upper and lower covers of the leakage circuit breaker are connected to the circuit breaker main body by screws, improving the installation and disassembly efficiency;

[0037] Refer to Figure 5 and Figure 7 As shown, the transmission shaft 3 is arranged in a "triangle" shaft structure, and the connecting shaft 2 and the limiting shaft 12 are arranged in a "circle" shaft structure; the four upper fixing plates 1501 are fixedly connected to the side wall of the upper cover 13, and the four lower fixing plates 1501 are fixedly connected to the side wall of the lower cover 14; the four upper receiving plates 1506 and the four lower receiving plates 1506 are all connected to the side wall of the appliance body 1, and the receiving plate 1506 is slidably connected to the trapezoidal block 1510 through the installation groove 1508; the triangular block 1505 is arranged in a right-angled triangle cross-sectional structure, the fixing plate 1501 is arranged in a right-angled trapezoid structure, and the triangular block 1505 and the trapezoidal block 1510 are arranged to be adapted to each other;

[0038] Among them, the triangular block 1505 is arranged in a right-angled triangle cross-sectional structure, the fixing plate 1501 is arranged in a right-angled trapezoid structure, and the triangular block 1505 and the trapezoidal block 1510 are arranged to be adapted to each other, realizing the mutual sliding and mutual clamping between the triangular block 1505 and the trapezoidal block 1510;

[0039] Refer to Figure 7 As shown, a movable groove 1512 is provided on the receiving plate 1506. The connecting groove 1507, the installation groove 1508 and the movable groove 1512 are arranged to be mutually communicated. One end of the fixing plate 1501 is provided with a limiting plate 1513, and the width of the movable groove 1512 is smaller than that of the spring 1509;

[0040] Among them, the width of the movable slot 1512 is smaller than that of the spring 1509, which restricts the movement position of the spring 1509 to prevent the movement position of the spring 1509 from shifting;

[0041] Working principle: By driving the handle 6 to move, the handle 6 drives the first sleeve 4 to move through the fixed block 5. Due to the limiting effects of the connecting shaft 2 and the limiting shaft 12, the first sleeve 4 drives the transmission shaft 3 to rotate, and the transmission shaft 3 drives the second sleeve 7 to rotate, thereby realizing the first sleeve 4 synchronously driving the transmission shaft 3 to rotate. Thus, the second sleeve 7 drives the connecting rod 9 to move, and the connecting rod 9 drives the first connecting plate 10 to move, achieving rapid manual power-off of the entire circuit breaker using a single handle 6, simplifying the operation steps and making the operation more convenient. By setting the transmission shaft 3, the problem that traditional leakage circuit breakers manually cut off the power of the circuit breaker by driving two or more handles 6, which is rather cumbersome to operate and the setting of multiple handles 6 will also increase the production cost, is solved, making the use effect of the circuit breaker better;

[0042] When the upper cover 13 and the body 1 or the lower cover 14 and the body 1 are connected, the driving slider 1503 drives the insertion block 1504 to move, and the insertion block 1504 drives the triangular block 1505 to enter the connecting slot 1507. The inclined surface of the triangular block 1505 slides over the inclined surface of the trapezoidal block 1510, and the trapezoidal block 1510 moves to the side wall of the triangular block 1505 under the reset action of the spring 1509 to fix the position of the triangular block 1505, realizing the rapid installation of the body 1 and the upper cover 13 or the body 1 and the lower cover 14; when the upper cover 13 and the body 1 or the lower cover 14 and the body 1 are disassembled, the pull rod 1511 drives the trapezoidal block 1510 to enter the installation slot 1508, the trapezoidal block 1510 leaves the side wall of the triangular block 1505, the trapezoidal block 1510 loses control of the triangular block 1505, and the insertion block 1504 drives the insertion block 1504 to move outward from the connecting slot 1507, realizing the rapid disassembly of the body 1 and the upper cover 13 or the body 1 and the lower cover 14. By setting the disassembly and assembly structure 15 to replace the way that the upper and lower covers of traditional leakage circuit breakers are connected to the circuit breaker body using screws, the installation and disassembly efficiency is improved.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A leakage circuit breaker with a manual drive mechanism, comprising a body (1); characterized in that: The body (1) is rotatably connected to a connecting shaft (2) through a connecting hole, a transmission shaft (3) is provided at the upper end of the connecting shaft (2), a first sleeve (4) is mounted on the outer wall of the transmission shaft (3), a fixing block (5) is mounted on the outer wall of the first sleeve (4), and a handle (6) is mounted on the side wall of the fixing block (5); A second sleeve (7) is mounted on the outer wall of the transmission shaft (3) and located above the first sleeve (4); a mounting hole (8) is formed at an upper end of the second sleeve (7); a connecting rod (9) is mounted on the second sleeve (7) through the mounting hole (8); a first connecting plate (10) is disposed at the other end of the connecting rod (9); the first connecting plate (10) is rotatably connected to a movable plate (11) via a connecting pin; and a limiting shaft (12) is disposed at the upper end of the second sleeve (7).

2. A leakage circuit breaker with a manual drive mechanism according to claim 1, characterized in that: The upper end of the body (1) is connected to an upper cover (13), the lower end of the body (1) is connected to a lower cover (14), and the upper cover (13) is rotatably connected to the upper end of the limiting shaft (12) via a connecting hole.

3. A leakage circuit breaker with a manual drive mechanism according to claim 2, characterized in that: A disassembly structure (15) is installed on the left and right side walls of the upper cover (13) and the lower cover (14) and at the front and rear sides; The disassembly and assembly structure (15) comprises a fixed plate (1501), a slide groove (1502) is provided on the fixed plate (1501), a sliding block (1503) is slidably connected to the fixed plate (1501) via the slide groove (1502), an insert block (1504) is installed on the side wall of the sliding block (1503), and a triangular block (1505) is installed on the side wall of the insert block (1504); The disassembly and assembly structure (15) further comprises a receiving plate (1506), a connecting groove (1507) being provided on the receiving plate (1506) and corresponding to the insert block (1504), a mounting groove (1508) being provided on the receiving plate (1506) and located on one side of the connecting groove (1507), a spring (1509) being installed on the receiving plate (1506) through the mounting groove (1508), a trapezoidal block (1510) being provided at the other end of the spring (1509), and a pull rod (1511) being installed on the side wall of the trapezoidal block (1510).

4. The leakage circuit breaker with a manual drive mechanism according to claim 2, characterized in that: The transmission shaft (3) is arranged in a "triangular" shaft structure, and the connecting shaft (2) and the limiting shaft (12) are arranged in a "circular" shaft structure.

5. The leakage circuit breaker with a manual drive mechanism according to claim 3, characterized in that: The four fixing plates (1501) on the upper side are fixedly connected to the side wall of the upper cover (13), and the four fixing plates (1501) on the lower side are fixedly connected to the side wall of the lower cover (14).

6. The leakage circuit breaker with a manual drive mechanism according to claim 3, characterized in that: The four receiving plates (1506) on the upper side and the four receiving plates (1506) on the lower side are all connected to the side wall of the device body (1), and the receiving plates (1506) are slidably connected to the trapezoidal blocks (1510) via the mounting grooves (1508).

7. The leakage circuit breaker with a manual drive mechanism according to claim 3, characterized in that: The triangular block (1505) is configured with a right-angled triangular structure in cross section, the fixed plate (1501) is configured with a right-angled trapezoidal structure, and the triangular block (1505) and the trapezoidal block (1510) are configured to match each other.

8. The leakage circuit breaker with a manual drive mechanism according to claim 3, characterized in that: The receiving plate (1506) is provided with a movable groove (1512), the connecting groove (1507), the mounting groove (1508) and the movable groove (1512) are interpenetratingly arranged, a limiting plate (1513) is arranged at one end of the fixing plate (1501), and the width of the movable groove (1512) is smaller than the spring (1509).

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