WO2017020820A1

WO2017020820A1 - Energy storage operating mechanism for circuit breaker

Info

Publication number: WO2017020820A1
Application number: PCT/CN2016/092932
Authority: WO
Inventors: 潘斌华; 孙吉升
Original assignee: 浙江正泰电器股份有限公司; 上海电科电器科技有限公司
Priority date: 2015-08-04
Filing date: 2016-08-02
Publication date: 2017-02-09

Abstract

An energy storage operating mechanism for a circuit breaker, comprising a handle (81) mounted on a drive shaft (30), a ratchet wheel (87) and a cam assembly (3) also being fixedly mounted on the drive shaft, the ratchet wheel being in contact communication with an energy storage assembly (4) of the circuit breaker; the handle can, by means of the ratchet wheel, cause the drive shaft to rotate and thereby drive the cam assembly to drive the energy storage assembly to implement energy storage; and a first pawl (83) engaging with the saw teeth on the edge of the ratchet wheel is mounted on the handle. The present energy storage operating mechanism for a circuit breaker is flexible to use, and has a stable structure and reliable action.

Description

Energy storage operating mechanism of circuit breaker

Technical field

The invention relates to the field of low-voltage electrical appliances, in particular to an energy storage operating mechanism of a circuit breaker.

Background technique

At present, the operating mechanism of the molded case circuit breaker is usually manually dialed. If the user needs electric operation, an external electric operation accessory is often provided to install the external circuit breaker to realize the function of the electric and remote control circuit breaker. However, for large-capacity molded case circuit breakers, the external operating mechanism accessories often have a large volume and weight, and thus have high requirements on the installation quality, especially when the operating mechanism is large in the cooperation of the circuit breaker body. Impact vibration easily causes failure of key parts such as the circuit breaker housing and the locking device. Therefore, the existing molded case circuit breaker external operating mechanism attachment is bulky, heavy, and poor in reliability. Moreover, the former domestic pre-storage operation mechanism is only used on the air circuit breaker, and can not be applied to the molded case circuit breaker to replace with the existing manual paddle operation mechanism to meet different market demands. Therefore, a new type of pre-storage operation mechanism that can be built inside the circuit breaker is urgently needed to realize intelligent control of the circuit breaker. The operating mechanism has the same mounting mode and tripping position as the manual paddle type operating mechanism, and realizes interchange with the manual paddle operating mechanism to meet the needs of different users, and can overcome the manual paddle operating mechanism with external motor accessories. The circuit breaker has the disadvantages of large size, heavy weight, high cost and poor reliability.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art and to provide an energy storage operation mechanism for a circuit breaker that is flexible, structurally stable, and reliable in operation.

In order to achieve the above object, the present invention adopts the following technical solutions:

An energy storage operation mechanism of a circuit breaker includes a handle 81 mounted on a drive shaft 30, and the drive shaft 30 is also fixedly mounted with a ratchet 87 and a cam assembly 3, the energy of the cam assembly 3 and the circuit breaker The storage assembly 4 is in contact connection, and the handle 81 can rotate the drive shaft 30 through the ratchet 87 to drive the cam assembly 3 to drive the energy storage assembly 4 for energy storage. The handle 81 is mounted with a first pawl 83 that engages with the serration of the edge of the ratchet 87. .

Further, the drive shaft 30 is rotatably mounted on a side plate assembly 1 for fixing, the ratchet 87 is fixedly mounted on the drive shaft 30, and the handle 81 is rotatable relative to the drive shaft 30, the first spine A claw spring 85 is disposed between the other end of the claw 83 and the handle 81. The first pawl 83 is further provided with a driving curved surface 832 engageable with the serration of the ratchet 87.

Further, the side plate assembly 1 is further provided with a second pawl 86, and the first pawl 83 and the second pawl 86 can simultaneously mesh with the serrations of the edge of the ratchet 87, the first pawl 83 and the second A pawl spring 85 is mounted on the pawl 86, and the first pawl 83 and the second pawl 86 are symmetrically disposed with respect to the ratchet 87.

Further, a handle positioning hole 831 is defined in the first pawl 83, and a positioning pin 84 for mounting the first pawl 83 on the handle 81 is mounted in the handle positioning hole 831, and the positioning pin 84 is fixed. On the handle 81 and the locating pin 84 is movable within the handle locating aperture 831 such that the handle 81 produces an idle stroke relative to the ratchet 87 when the operational energy storage begins.

Further, one end of the handle 81 is a handle driving portion connected to the circuit breaker, and the other end is a handle operating portion for applying an external force, and the handle operating portion is mounted with an elongated handle 82 rotatable relative to the handle 81.

Further, the end of the handle operating portion of the handle 81 is rotatably connected with the corresponding end of the elongated handle 82, and the elongated handle 82 is provided with a handle folding cavity 820. When folded, the end of the handle 81 can be placed in the handle folding cavity 820. Inside.

Further, the end portion of the handle portion of the handle 81 is provided with a positioning cylinder 811, and the end of the elongated handle 82 is provided with a positioning hole 821 which is rotatably connected with the positioning cylinder 811, and the extension handle 82 is rotatable around the positioning cylinder 811. And the positioning cylinder 811 is mounted on the guiding boss 812 on the side of the end of the handle operating portion, and the positioning hole 821 is opened on the positioning groove 822 at the end of the elongated handle 82, The guiding boss 812 is matched with the positioning slot 822 for a limit connection when unfolding or folding.

Further, an electric motor 9 for automatically storing energy of the energy storage operation mechanism 99 is mounted. The electric motor 9 is mounted on one side of the energy storage operation mechanism 99, and the energy storage operation mechanism 99 is mounted with the motor 9 to be driven. The drive shaft 30 is connected, and the drive shaft 30 can drive the energy storage operation mechanism 99 to store energy; the motor 9 is mounted on the side plate assembly 1 side of the energy storage operation mechanism 99, and the outer side wall of the side plate assembly 1 is also mounted. There are a plurality of positioning shafts for the limit mounting and the fixed connection, the positioning shaft includes a first positioning shaft 901 and a second positioning shaft 902, and the side wall of the motor 9 is provided with the first positioning shaft 901, The two positioning shafts 902 and the driving shaft 30 respectively correspond to the first positioning hole 903, the second positioning hole 904 and the third positioning hole 905.

Further, the end of the first positioning shaft 901 can be fixedly connected to the side wall of the motor 9, the end of the second positioning shaft 902 is fixedly mounted with the side wall of the motor 9, and the motor 9 and the side plate assembly 1 are The end of the drive shaft 30 and the end of the second positioning shaft 902 are respectively placed in the motor 9, and the end of the second positioning shaft 902 is provided with a circular boss 902a, and the motor 9 is mounted with a circular boss 902a. It can be placed in the second positioning hole 904 for the limit installation.

Further, a handle assembly 8 for manual energy storage is further installed between the motor 9 and the energy storage operating mechanism 99. The handle assembly 8 includes a handle 81 mounted on the drive shaft 30.

Further, the handle positioning hole 831 has an elliptical structure, and the edge of the ratchet 87 is a dense tooth structure.

Further, the edge of the handle 81 is provided with a handle positioning protrusion 815 for limiting, and the side plate assembly 1 is further provided with a handle positioning post 17 which can be in contact with the handle positioning protrusion 815, and the handle 81 and the handle A handle return spring 18 is disposed between the positioning posts 17.

Further, the end of the positioning groove 822 is provided with a guiding slope 823, and the edge of the guiding protrusion 812 is provided with a rounded feature 813 which can be in contact with the positioning groove 822 and the guiding inclined surface 823, respectively. When the handle 81 is mounted, the guiding boss 812 can be slid into the positioning groove 822 through the guiding inclined surface 823, and the positioning cylinder 811 is connected with the positioning hole 821 to complete the mounting limit.

Further, the end portion of the handle 81 is further provided with a handle limiting baffle 810 which can be in contact with both side edges of the handle folding cavity 820 when folded; the end of the handle limiting baffle 810 is provided with a first limit The end surface of the elongated handle 82 is provided with a second limiting plane 824 that can be in contact with the first limiting plane 814, and the first limiting plane 814 is extended when the elongated handle 82 is rotated 180° with respect to the handle 81. The second limiting plane 824 is connected to the second limiting plane 824. One side of the second limiting plane 824 is provided with a circular arc feature 827 that can be in contact with the corresponding side of the first limiting plane 814. The side of the elongated handle 82 is provided for easy deployment. Expand the operation department.

Further, the end of the first positioning shaft 901 is provided with an internally threaded hole 901a, and the internally threaded hole 901a is correspondingly connected with the first positioning hole 903 and fixedly connected by a fixing bolt 901b, the first positioning shaft The second positioning shaft 902 and the driving shaft 30 are disposed on the side plate assembly 1 in a triangular shape, and the first positioning shaft 901 and the second positioning shaft 902 are respectively disposed on both sides of the driving shaft 30.

The invention adopts the cooperation of the pawl and the ratchet to ensure the flexibility and stability of the handle use process and improve the use efficiency of the handle assembly.

DRAWINGS

Figure 1 is a schematic view of the structure of the present invention;

Figure 2 is an exploded view of the structure of the present invention;

Figure 3 is a schematic structural view of a side panel assembly of the present invention;

Figure 4 is a schematic structural view of a rotating shaft assembly of the present invention;

Figure 5 is a schematic structural view of a cam assembly of the present invention;

Figure 6 is a schematic structural view of a connecting rod assembly of the present invention;

7 is a schematic structural view of an embodiment of an energy storage assembly of the present invention;

Figure 8 is a flow chart showing the state of the opening and closing process of the present invention;

Figure 9 is a schematic structural view of a splitting half shaft of the present invention;

Figure 10 is a schematic structural view of the opening lock of the present invention;

Figure 11 is a schematic structural view of a closing half shaft of the present invention;

Figure 12 is a schematic structural view of the closing lock of the present invention;

Figure 13 is a schematic structural view of the interlocking guide rod of the present invention;

Figure 14 is a front view showing the structure of the closing guide of the present invention;

Figure 15 is a schematic structural view of a shutter guide of the present invention;

Figure 16 is a schematic structural view of a driving guide of the present invention;

Figure 17 is a structural view showing the state of the link assembly of the present invention when the brake is released;

Figure 18 is a structural view showing the state of the connecting rod assembly of the present invention when it is opened for energy storage;

Figure 19 is a structural view showing the state of the link assembly of the present invention when the switch is released;

Figure 20 is a structural view showing the state of the interlock assembly of the present invention when the brake is released;

Figure 21 is a structural view showing the state of the interlock assembly of the present invention when it is opened for energy storage;

Figure 22 is another structural view of the interlock assembly of the present invention when it is opened for energy storage;

Figure 23 is a structural view showing the interlocking assembly of the present invention at the time of closing and releasing energy;

Figure 24 is a structural view showing the state of the interlock assembly of the present invention when it is closed for energy storage;

Figure 25 is a side view showing the structure of the energy storage assembly of the present invention when it is being stored;

Figure 26 is a side elevational view of the energy storage assembly of the present invention when it is released;

Figure 27 is a block diagram showing another embodiment of the energy storage assembly of the present invention;

Figure 28 is a schematic structural view of an embodiment of a strike pin of the present invention;

Figure 29 is a schematic structural view of a handle assembly of the present invention;

Figure 30 is a schematic view showing the structure of the handle assembly of the present invention in a folded state;

Figure 31 is a schematic view showing the structure of the handle assembly of the present invention in an unfolded state;

Figure 32 is a partial structural view of the handle assembly of the present invention;

Figure 33 is a schematic view showing the mounting structure of the ratchet of the present invention;

Figure 34 is a schematic view showing the layout structure of the positioning shaft of the present invention;

Figure 35 is a schematic structural view of an electric motor of the present invention;

Figure 36 is a schematic view showing the mounting structure of the motor of the present invention.

detailed description

Embodiments of the present invention will now be described with reference to Figs. 1 to 36 to further illustrate a specific embodiment of the energy storage operation mechanism of the circuit breaker of the present invention. The energy storage operation mechanism of the circuit breaker of the present invention is not limited to the description of the following embodiments.

The energy storage operating mechanism 99 includes a side panel assembly 1, a link assembly 2, a cam assembly 3, an energy storage assembly 4, a hinge assembly 5, a control assembly 6, an interlock assembly 7, and a handle assembly 8. The link assembly 2 and the cam assembly 3 of Figures 1 and 2 are mounted on a drive shaft 30. One end of the link assembly 2 is drivingly coupled to the shaft assembly 5 and the other end is connectable to a control assembly 6, the shaft assembly 5 It can also be coupled to a contact system of the circuit breaker, the ends of which can be in contact with the cam assembly 3 and the linkage assembly 2, respectively, and the control assembly 6 is also drivingly coupled to the interlock assembly 7 The interlocking device formed by the control assembly 6 and the interlocking assembly 7 can drive the cam assembly 3, the link assembly 2 and the energy storage assembly 4 to operate, thereby completing the closing or opening process of the energy storage operating mechanism 99, and the rotating shaft assembly 5 The energy storage assembly 4 is mounted on one side of the drive shaft 30, and the control assembly 6 and the interlock assembly 7 are mounted on the other side of the drive shaft 30. The energy storage operation mechanism of the present invention is used in a molded case circuit breaker, which can be interchanged with a manual operation mechanism of a molded case circuit breaker, and is connected to the circuit breaker through the side plate assembly 1; the energy storage lever 42 of the storage assembly 4 and the energy storage device The energy storage spring 48 is connected to the lever 42. One end of the energy storage spring 48 is mounted on one side of the side plate assembly 1 connected to the circuit breaker, and the other end is connected to one end of the energy storage lever 42. The energy storage lever 42 and the energy storage spring 48 are formed. L-shaped, the rotation is arranged on the side of the side plate assembly 1 away from the circuit breaker. The link assembly 2 and the cam assembly 3 are mounted on the drive shaft 30 below the energy storage lever 42. The shaft assembly 5 is disposed between the energy storage spring 48 and the drive shaft 30, and one end of the link assembly 2 is coupled to the shaft assembly 5, and One end also The control unit 6 is connected to the control switch, and the drive shaft 30 is disposed between the shaft assembly 5 and the control unit 6. The energy storage operation mechanism of the invention is used in a molded case circuit breaker, and the energy storage operation mechanism is compact in structure, thereby facilitating assembly and installation, and improving the use efficiency. At the same time, the energy storage operation mechanism of the invention has improved the design layout of the components, which is different from the layout of the energy storage operation mechanism of the universal circuit breaker. The energy storage assembly and the rotating shaft assembly of the existing universal circuit breaker are respectively disposed on both sides of the driving shaft, but since the energy storage operating mechanism of the present invention is used in the molded case circuit breaker, the energy storage component, that is, the energy in the invention is required. The storage component evades the link assembly, so in the present invention, the component layout is redesigned, the energy storage component and the shaft assembly are disposed on one side, and the energy storage component is disposed at the upper portion of the operating mechanism, at the link set and the cam assembly. The above, in order to meet the component action requirements of the energy storage operating mechanism, improves the stability of the operation of the energy storage operating mechanism.

The energy storage operation mechanism 99 of the present invention has four operating states, namely, an opening release state, a discharge energy storage state, a closing release state, and a closing energy storage state as shown in FIG.

Specifically, the energy storage operation mechanism 99 drives the drive shaft 30 to rotate by the handle assembly 8 to drive the rotation of the cam assembly 3 when the brake assembly is released, and the cam assembly 3 jacks up the energy storage lever 42 to make the energy storage assembly during the rotation. 4 energy storage, while the cam assembly 3 is rotated into position, the closing latch 64 of the control assembly 6 bears against the cam assembly 3 to complete the energy storage, and the energy storage lever 42 no longer presses the linkage assembly 2, and the linkage assembly 2 rotates The latch bearing 622 at the end of the scoring lock 62 slides into the U-shaped groove 213 of the link assembly 2, at which time the energy storage operating mechanism 99 shifts to the state of the energy storage of the opening as shown in FIG.

When the energy storage operating mechanism 99 is in the state of discharging the energy storage, pressing the closing button 65 causes the closing guide 72 of the interlocking assembly 7 to drive the closing half shaft 63 so that the closing lock 64 and the cam assembly 3 are released. The energy storage component 4 releases and strikes the linkage assembly 2 to pull the spindle assembly 5 to complete the closing, and the locking bearing 622 bears against the U-shaped groove 213 to block the rotation of the linkage assembly 2, and the energy storage operating mechanism 99 is switched to The state of the closing release energy as shown in FIG.

When the energy storage operating mechanism 99 is in the state of closing the release, the following two operations can be selected. The first is that after the opening button 66 is pressed, the opening guide 73 drives the opening half shaft 61 to make the opening lock. The latch bearing 622 of the buckle 62 is disengaged from the U-shaped groove 213 and no longer blocks the link assembly 2 from being returned. The link assembly 2 drives the rotating shaft assembly 5 to rotate under the restoring force of the main tension spring 49 to complete the opening, and the energy storage assembly 4 The link assembly 2 is re-squeezed, at which time the energy storage operating mechanism 99 is switched to the state of the release release as shown in FIG.

The second is that the energy storage operating mechanism 99 pulls the handle assembly 8 to complete the energy storage of the energy storage component 4 when the state is closed, and the energy storage operating mechanism 99 switches to the state of closing the energy storage. The state of the lever assembly 2 is the same as that in the case of the closing release of Fig. 19, and the state of the interlocking assembly is as shown in Fig. 24. At this time, the opening button 66 is pressed to complete the opening process as the first operation, and since the energy storage assembly 4 stores the energy, the energy storage lever 42 no longer presses the link assembly 2, thereby driving the shaft at the link assembly 2. After the assembly 5 is rotated to complete the opening, the lock bearing 622 is still placed in the U-shaped groove 213, further causing the energy storage operating mechanism 99 to directly switch to the state of the energy storage of the opening as shown in FIG. After the closing button 65 is pressed again, the closing operation can be completed without the energy storage step, thereby improving the use efficiency of the circuit breaker.

The side panel assembly 1 of FIG. 2 includes a first side panel 11 and a second side panel 12 disposed opposite to each other, and the link assembly 2, the cam assembly 3, the energy storage assembly 4, the control assembly 6 and the interlock assembly 7 can be Installed in the installation space formed between the first side panel 11 and the second side panel 12, at least one of the first side panel 11 and the second side panel 12 in FIG. The side panel fastening shaft 16, preferably between the first side panel 11 and the second side panel, is provided with three side panel fastening shafts 16 and the three side panel fastening shafts 16 are at the first side panel 11 or the second side panel The projections on 12 are triangular in shape. The triangular-distributed side plate fastening shaft ensures an accurate corresponding connection between the first side plate and the second side plate, and improves the installation reliability of the circuit breaker operating mechanism. The side edges of the side panel assembly 1 are provided with mechanism mounting holes 16 that are connectable to the contact system. The two ends of the driving shaft 30 and the driving shaft mounting holes 101 formed on the first side plate 11 and the second side plate 12 are respectively connected to the hole shafts, and the first side plate 11 and the second side wall 12 are respectively rotatably mounted. There are an energy storage indicator 75 and a closing indicator 67. A first bearing 55 and a second bearing 56 are arranged side by side on the rotating shaft assembly 5 in FIG. 2. The rotating shaft assembly 5 is rotatable by a first bearing 55 and a second bearing 56, and the first bearing 55 and the second bearing 56 are respectively The shaft mounting notch 102 is installed in the first side plate 11 and the second side plate 12, and the rotating shaft mounting notch 102 is disposed in a U-shaped structure, and the first side plate 11 and the second side plate 12 are connected to the molded case circuit breaker. On the side edges. In particular, the shaft assembly 5 and the energy storage assembly 4 are disposed on one side of the installation space, and the control assembly 6 and the interlock assembly 7 are disposed on the other side of the installation space, the drive shaft 30 connecting the linkage assembly 2 and the cam assembly 3 installed in the middle of the installation space, energy storage component 4 and linkage assembly 2 and cam set The energy storage lever 42 of the fitting action of the piece 3 is located above the link assembly 2 and the cam assembly 3.

The rotating shaft assembly 5 includes a main shaft 50 mounted on the side plate assembly 1. The middle portion of the main shaft 50 is provided with a first cantilever 51, a second cantilever 52 and a third cantilever 53. The fourth cantilever 57 and the fifth cantilever 58. The first cantilever 51 of FIG. 4 is provided with a connecting rod mounting hole 511 and a driving mounting hole 512. The connecting rod mounting hole 511 is rotatably connected to the end hole shaft of the connecting rod assembly 2 through the connecting pin 54 in FIG. The driving mounting hole 512 is coupled to the contact system of the circuit breaker, and the action of the connecting rod assembly 2 can drive the rotating shaft assembly 5 to rotate to drive the contact system to complete the closing process. The connecting pin ensures a stable connection of the connecting rod assembly to the connecting rod mounting hole. The second cantilever 52 and the third cantilever 53 on the main shaft 50 are respectively disposed on two sides of the first cantilever 51, and the second cantilever 52 can be coupled with the interlocking guide 71 of the interlocking assembly 7, The interlocking guide 71 is mounted on the drive shaft 30 at the same time as the link assembly 2 and the cam assembly 3. The third cantilever 53 can be coupled to the closing indicator 67. Preferably, a fourth cantilever 57 and a fifth cantilever 58 are disposed on both sides of the main shaft 50. The fourth cantilever 57 and the fifth cantilever 58 are also provided with a driving mounting hole 512 that can be coupled to the contact system.

The cam assembly 3 includes a first cam set 31 and a second cam set 32 that are coaxially fixedly mounted on the drive shaft 30. The first cam set 31 and the second cam set 32 are identical in structure and include a disc 34, respectively. And the cam 33, the disc 34 in FIG. 5 and the cam 33 are fixedly connected by a cam rivet 36, and the edge of the cam 33 can be in contact with the energy storage lever 42 of the energy storage assembly 4, and the circular surface 341 of the disc 34 is further connected. A disc notch 342 is formed in contact with the indicator circular surface 752 of the energy storage indicator 75, and a cam roller 35 is mounted between the disc 34 and the cam 33 for relative rotational rotation. The cam roller 35 can be in contact with the closing latch 64 of the control assembly 6. An interlocking guide 71 and a link assembly 2 mounted on the drive shaft 30 are further disposed between the first cam set 31 and the second cam set 32, and the two ends of the interlocking guide 71 can be respectively coupled to the rotating shaft assembly 5 The second cantilever 52 and the closing guide 72 of the interlock assembly 7 are correspondingly in contact connection. A sleeve 37 is further disposed between the interlocking guide 71 and the drive shaft 30. The interlocking guide 71 is rotatable about the sleeve 37. The interlocking guide 71 is further provided with an interlock for installing the interlocking guide rod return spring. The guide rod hangs the spring hole 715. The cam assembly is compact in design and easy to install, and the rotation process is stable, and the components mounted on the drive shaft are synchronized and rotated, which improves the efficiency of the closing process.

The link assembly 2 includes a second link 23, a first link 22, and a jumper 21 that are sequentially connected, and a first link 22 and a jumper between the second link 23 and the first link 22 21 is relatively rotated and connected. The jumper 21 can be rotated around one end of the first link 22 to be rotated on one side of the first link 22, and the action of the jumper and the first link are not interfered with each other, so that the action mode of the link assembly is simple and accurate. Both ends of the first link 22 in FIG. 6 are rotatably coupled to the jumper 21 and the second link 23, respectively. The jumper 21 is provided with a jumper mounting hole 210 that can be connected through the drive shaft 30. The jumper 21 is further provided with a jump hook 211 as a driving portion for driving the jumper 21 relative to the drive shaft. a rotating jumper spring 25, the end of the second link 23 is provided with a link drive hole 232 connectable to the link mounting hole 511 through the connecting pin 54, and the connecting pin 54 of FIG. 17 is mounted for The main tension spring 49 that resets the position of the first link 22 and the second link 23 is mounted on the first link 22 with a strike roller 24 that is in contact with the strike pin 44 of the energy storage unit 4 and serves as a trigger portion. In particular, the first link 22 includes two first link mounting pieces 221 mounted side by side, and the striking roller 24 is clamped between the two first link mounting pieces 221 and is movable relative to the first The connecting rod 221 is rotated, and the second connecting rod 23 includes two second connecting rods 231 mounted side by side, and the ends of each of the second connecting rods 231 are respectively provided with connecting rod driving holes 232, and two The first link mounting piece 221 and the corresponding end portions of the two second link mounting pieces 231 are pivotally connected by a connecting rod connecting pin 216, and the jumper 21 is provided with a connection and is mounted on the first connecting rod mounting piece 221 A jumper connection end 214 between the corresponding ends. The first link and the second link formed by the mounting piece are firmly structured and the pivot connection is stable. In addition, the edge of the first link 22 corresponding to the side of the drive shaft 30 can be in contact with the sleeve 37 on the drive shaft 30.

The jumper 21 is further provided with a U-shaped slot 213 for limiting the opening lock 62 of the connection control assembly 6. The side of the jumper 21 that is provided with the U-shaped slot 213 is further provided with the first link 22 The corresponding end is rotatably connected to the jumper connection end 214. Specifically, the jumper hook 211 is mounted with a jumper spring 25 for lifting and restoring, and the jumper spring 25 is mounted on the jumper hook 211 at one end and mounted on the side panel assembly 1 at the other end. The jumper is pulled and pulled by a jumper spring on the jumper hook. Compared with the existing energy storage operating mechanism, the jumper is pulled and reset by two springs on both sides, and the trip spring of the present invention has a simple installation structure. At the same time, it avoids the occurrence of squeezing between the other components of the connecting rod assembly and the energy storage component during the action, thereby reducing the failure rate of the energy storage operating mechanism and prolonging its service life. Moreover, the end of the opening lock 62 is provided with a lock bearing 622 that can be coupled with the U-shaped groove 213, and the inner side wall of the U-shaped groove 213 includes a phase. U-shaped groove lower plane 2131 and U-shaped groove upper plane 2132

The energy storage assembly 4 includes an energy storage lever 42 , an energy storage spring 48 and a base bracket 46 . One end of the energy storage spring 48 is fixedly mounted on the base bracket 46 and the other end is connected to the energy storage lever 42 . The end of the energy storage lever 42 in FIG. 7 is an energy storage end on which the energy storage spring 48 is mounted, and the other end is a drive end that can be in contact with the cam assembly 3, and the middle portion of the energy storage lever 42 is also provided with an energy storage installation. The lever fulcrum of the shaft 41. Preferably, the first cam group 31 and the second cam group 32 of the same structure installed side by side on the drive shaft 30 are respectively in contact connection with the energy storage bearing 43 on both sides of the driving end of the energy storage lever 42. Further, the energy storage lever 42 is further provided with a strike pin 44 which is provided corresponding to the strike roller 24 of the link assembly 2. The shape of the striking pin 44 may be a circular shape as shown in FIG. 7, or may be a striking pin 44 having a waist-shaped cross section as shown in FIGS. 27 and 28, and the width of both ends of the striking pin 44 having a waist-shaped cross section is smaller than The width of the middle part ensures the closing stroke and closing efficiency.

The energy storage lever 42 includes at least two energy storage mounting pieces 421 installed side by side. The energy storage mounting shaft 41 of FIG. 7 is disposed through the energy storage lever 42 and can be pivotally connected to each of the energy storage mounting pieces 421 respectively. . The energy storage end of the energy storage lever 42 is connected to the energy storage mounting piece 421 via a connecting bracket 45 that can be connected to the energy storage spring 48. Preferably, the specific implementation of the energy storage lever of the present invention is as shown in FIG. 7. The energy storage lever 42 includes two energy storage mounting pieces 421 and an energy storage mounting shaft 41 arranged side by side, and an energy storage mounting shaft 41 respectively. Two sets of energy storage mounting pieces 421 are disposed, and both ends of the energy storage mounting shaft 41 are fixed on the side plate assembly 1. The side plate assembly 1 is further provided with a connecting rod assembly 2 and a cam assembly 3, two pieces of storage. Strike pins 44 connectable to the striking rollers 24 on the link assembly 2 are disposed between the mounting pieces 421, and the ends of each of the accumulator mounting pieces 421 are further provided with a cam contact connection with the cam assembly 3. Energy storage bearing 43. Compared with the way that two short shafts are connected from both sides of the energy storage lever, the advantage of using only one energy storage bearing is that the stability and reliability are high, the processing technology is simple, and the assembly efficiency is high. The energy storage mounting shaft 41 is not limited to the above-described one-through mounting method. As shown in FIG. 27, two energy storage mounting shafts 421 can be used to mount the two energy storage mounting sheets 421 on the side panel assembly 1, respectively. In particular, the height of the energy storage lever 42 of the energy storage assembly 4 of FIG. 1 is lower than the height of the edges of the first side panel 11 and the second side panel 12. The energy storage component has a simple installation structure and a small space, which facilitates assembly and use of the operating mechanism. In addition, the energy storage mounting piece 421 is curved, and both ends thereof are bent to one side, one end is provided with the energy storage bearing 43, and the other end is connected with the energy storage spring 48 through the spring connecting piece, and the middle of the energy storage mounting piece 421 is stored. The shaft 41 can be mounted, and the strike pin 44 is disposed between the energy storage mounting shaft 41 and the energy storage bearing 43.

The base bracket 46 in FIG. 7 has a U-shaped structure including a base support piece 461 connectable to an end of the energy storage spring 48, and a base mounting piece 47 oppositely disposed on opposite sides of the base support piece 461, the base is mounted The bracket 47 is provided with a bracket rail 471 and a bracket mounting hole 473. The bracket rail 471 is disposed at an end of the mounting piece 47. The bracket mounting hole 473 is disposed corresponding to the rail end 472 of the bracket rail 471, and the bracket rail is disposed. The 471 and the bracket mounting hole 473 are respectively cooperatively coupled to the guide shaft 13 and the bracket positioning pin 14 mounted on the side plate assembly 1. The first side plate 11 and the second side plate 12 are respectively provided with a positioning pin fixing hole 111 for mounting the bracket positioning pin 14 and a guiding shaft 13. The guiding shaft 13 can be coupled with the bracket rail 471, and the bracket positioning pin 14 can pass through at the same time. The positioning pin fixing hole 111 and the bracket mounting hole 473 are mounted on the side plate assembly 1 with the base bracket 46 and the energy storage spring 48 of the energy storage assembly 4, and the base mounting piece 47 on both sides of the base bracket 46 can be respectively coupled to the first side The plate 11 and the second side plate 12 are in contact connection. The contact between the base mounting piece and the side plate assembly ensures that the base bracket is not easily shaken after installation, and the stability of the base bracket installation is improved. Preferably, the bracket mounting hole 473 is mated with the bracket positioning pin 14 while the rail end 472 can abut against the guide shaft 13, and the bracket positioning portion 14 is respectively mounted on the first side panel 11 and the second side panel 12 to be positioned. A card slot 141 is defined in the pin fixing hole 111 and on the surface of the bracket positioning pin 14. At the same time, the energy storage spring 48 is disposed obliquely with respect to both sides of the base bracket 46, and is connected to the energy storage end of the energy storage lever 42 by the base support piece 461 obliquely toward the rotating shaft assembly 5. In addition, the shape of the bracket mounting hole 473 may be elliptical, and the elliptical bracket mounting hole allows the positioning pin to have a certain margin during installation, thereby facilitating the installation process and ensuring the firmness of the installation. In particular, the energy storage assembly 4 includes two energy storage springs 48 disposed side by side in the base bracket 46. A gap is provided between the two energy storage springs 48. The second link 23 can be placed in the gap during energy storage. .

The base bracket 46 is mounted on one end of the side panel assembly 1, and the base mounting piece 47 on both sides of the base bracket 46 is flush with the side edges of one end of the first side panel 11 and the second side panel 12, and the base support sheet 461 is located in the side panel assembly 1 The side that is connected to the circuit breaker. In addition, the energy storage lever 42 is disposed opposite to the base support piece 461 of the base bracket 46, and is formed in an L shape with the energy storage spring 48, and is disposed on a side of the side plate assembly 1 away from the circuit breaker.

The energy storage operating mechanism 99 includes two main pull springs 49. The two main pull springs 49 are respectively disposed on two sides of the first cantilever 51, and the ends of each of the main pull springs 49 and the end of the connecting pin 54 and the energy storage. The mounting shaft 41 is fixedly connected. Further, one end of the two main tension springs 49 is fixed to the shaft assembly 5, and the other ends of the two main tension springs 49 are fixed to the corresponding energy storage mounting shafts 41 between the two energy storage mounting pieces 421. The energy storage mounting shaft 41 includes a first mounting shaft in the middle and two second mounting shafts respectively located on opposite sides of the first mounting shaft. The diameter of the first mounting shaft is larger than the second mounting shaft, and the other end of the two main pulling springs 49 Installed at the junction of the two second mounting shafts and the first mounting shaft, the two energy storage mounting pieces 421 are mounted on the second mounting shaft to limit the two main tension springs 49. The mounting position of the main pull spring not only makes the structure compact but does not affect the rotation of the energy storage lever, and at the same time facilitates the assembly and installation of the main pull spring. The fixed mounting position of the main tension spring 49 on the energy storage mounting shaft 41 is not limited to the above embodiment. The main tension spring 49 can be fixedly mounted on the corresponding energy storage mounting shaft 41 between the two energy storage mounting pieces 421 or fixed. It is mounted on the corresponding energy storage mounting shaft 41 on both sides of the two energy storage mounting pieces 421.

The control assembly 6 includes a split half shaft 61, a trip lock 62, a closing half shaft 63, a closing lock 64, a closing button 65 and a trip button 66, and the interlock assembly 7 includes a joint The lock guide 71, the closing guide 72, the opening guide 73, the drive guide 74 and the energy storage indicator 75. The closing guide 72 is installed in parallel with the opening guide 73. The opening half shaft 61, the opening lock 62 and the closing half shaft 63 are installed between the closing guide 72 and the opening guide 73. And the closing half shaft 63 is disposed opposite to one end of the closing guide rod 72, the opening half shaft 61 is disposed opposite to the other end of the closing guide rod 72, and the opening lock 62 is located at the opening half shaft 61 and closing Between the half shafts 63, one end of the opening lock 62 is connected to the middle of the opening half shaft 61.

One end of the closing half shaft 63 is drivingly connected with the closing lock 64, and the other end is opposite to the driving guide 74; the closing guide buckle 724 at one end of the closing guiding rod 72 can be placed in the closing half Between the shaft 63 and the driving guide 74, at this time, pressing the closing button 65 can drive the closing half shaft 63 to rotate by driving the guiding rod 74 and the closing guide rod 72 to drive the closing lock 64 and the cam assembly 3 to trip. The energy storage component 4 is released to drive the linkage assembly 2 to achieve closing. When the closing guide lock 724 is placed on the side of the closing half shaft 63 and the driving guide 74, the closing button 65 is disabled and cannot be applied to the closing half shaft 63 by the driving guide 74. The interlocking guide 71 is mounted on the drive shaft 30. One end of the interlocking guide 71 can be in contact with the shaft assembly 5 and the accumulator indicator 75, and the other end is in contact with the closing guide 72. In the state of energy storage, the energy storage indicator 75 causes the interlocking guide 71 to be closed to the closing guide 72, and the closing guide 72 is rotated and rotated under the action of the closing guide spring, thereby making the closing guide The lever lock 724 is placed between the drive guide 74 and the closing half shaft 63; in the other three states, the shaft assembly 5 and the energy storage indicator 75 can drive the closing guide 72 to move by the interlocking guide 71. The closing guide lock 724 is placed on the side of the drive guide 74 and the closing half shaft 63 to disable the closing button.

One end of the opening lock 62 is latched and connected to the opening half shaft 61, and the other end is latched and connected to the connecting rod assembly 2, and one end of the opening guide 72 is in contact with the end of the opening half shaft 61. One end is drivingly connected with the opening button 66. When the opening button 66 is pressed in the closing state, the opening guide 73 can drive the opening half shaft 61 to release the opening lock 62 and the link assembly 2, and pass through The connecting rod assembly 2 drives the rotating shaft assembly to realize the opening. At the same time, one end of the opening half shaft 61 is in contact with the opening guide 73 and the other end is in contact with the closing guide limiting boss 725 of the closing guide 72, so that the opening button 66 is pressed or directly When the opening half shaft 61 is pressed, the opening half shaft 61 can drive the closing guide rod 72 to move so that the closing guide rod lock 724 is placed on the side of the driving guide 74 and the closing half shaft 63 to close the closing The button is disabled and interlock protection is implemented.

Specifically, the opening half shaft 61 of FIG. 9 is provided with a semicircular plane 611 engaged with the opening lock 62, and one end of the opening half shaft 61 is provided with a closing half shaft limit engaged with the closing guide 72. The plane 612, the opening half shaft interlocking shaft 613, the opening half shaft hanging spring hole 614 (shown in FIG. 23), and the opening half shaft driving plane 616 cooperated with the tripping system of the circuit breaker, and the other end is provided with The opening guide 73 cooperates with the opening plane 615.

The latching end 623 at one end of the opening lock 62 of FIG. 10 can be in contact with the opening half shaft 61, and the other end is provided with a locking bearing 622 that can be connected to the U-shaped groove 213, and the opening lock 62 The brake lock fixing shaft 620 is further provided with a positioning sleeve (not shown) for positioning and installing the interlocking guide rod 72 at the tail end 623 of the lock. A lock spring 621 is also hung on one end.

One end of the closing half shaft 63 in FIG. 11 is provided with a closing semicircular plane 631. The other end is provided with a closing boss 632, a closing limit shaft 633 and a closing half shaft hanging spring hole 634; The table 632 can be drivingly coupled to the closing guide 72 and the closing lock 64, and the closing semicircular plane 631 can be in contact with the end of the closing latch 64. The rim of the closing latch 64 can be snap-locked to the cam roller 35.

The closing lock 64 of FIG. 12 is formed in a triangular shape, and the closing lock mounting hole 641 is provided in the middle portion, and the three corners are sequentially provided with the closing half shaft 63. Closing lock lock driving portion 642, closing lock energy storage portion 643 engaged with cam roller 35 of cam assembly 3, and closing lock spring hook 644 for connecting closing lock spring; A closing lock release portion 645 that cooperates with the cam assembly 3 is disposed between the lock accumulator portion 643 and the closing lock spring hook 644. When the energy storage is performed, the closing lock energy storage portion 643 of the closing lock 64 is in contact with the cam roller 35 of the cam 33 of the cam assembly 3, and the closing lock release portion 645 of the closing lock 64 is released when the energy is released. The cam rollers 35 of the cam 33 of the cam assembly 3 are mutually avoided. When the switch is closed, the closing half shaft 63 is rotated to become the closing semicircular plane 631 and the closing lock driving portion 642 of the closing lock 64 is in contact engagement, so that the closing lock 64 and the cam assembly 3 are released to trigger the subsequent closing. action.

The middle portion of the interlocking guide 71 in FIG. 13 is provided with an interlocking guide positioning hole 711 for mounting the interlocking guide 71 on the drive shaft 30, the interlocking guide positioning hole 711 of the interlocking guide 71 and the drive A shaft sleeve 37 is further disposed between the shafts 30. The interlocking guide rods 71 are rotatable about the sleeves 37. The interlocking guide rods are disposed on the drive shaft through the sleeves, and the installation position is reasonable without additional shafts. The two ends of the interlocking guide 71 are respectively provided with a limiting portion and a driving portion, wherein the limiting portion is provided with an interlocking guiding rod arc surface 712 which can be respectively connected with the energy storage indicating member 75 and the rotating assembly 5, and the joint The end of the locking guide arc surface 712 is further provided with an interlocking guide rod circular surface 713 which can be in contact with the end of the energy storage indicating member 75. The driving portion is provided with an interlocking connection that can be in contact with the closing guiding rod 72. The guide rod has a cylindrical surface 714, and the interlocking guide rod 71 is further provided with an interlocking guide rod hanging spring hole 715 for mounting the interlocking guide rod return spring. In particular, the energy storage indicating member 75 and the rotating shaft assembly 5 are respectively disposed at two sides of the limiting portion of the interlocking guide rod 71, and the interlocking guide rod circular surface 712 is inclined by the rotating shaft assembly 5 toward the energy storage indicating member 75. Settings.

The closing guide rod 72 of FIG. 14 is provided with a closing guide rod positioning hole 721 for positioning the closing guide rod 72 on the opening lock fixing shaft 620, and the closing guide rod positioning hole 721 is an elliptical structure. It can be moved relative to the opening lock fixing shaft 620. The top of the closing guide 72 is provided with a closing inclined surface 722 which can be in contact with the interlocking guiding rod cylindrical surface 714 of the interlocking guiding rod 71. The closing inclined surface 722 is disposed obliquely above the top of the closing guiding rod positioning hole 721. The closing guide rod positioning hole 721 and the closing guide rod limiting boss 725. The bottom of the closing guide rod 72 is provided with a closing guide rod hanging spring hook 723 for installing the closing guide rod spring, and the closing guiding rod hanging spring hook 723 is located at the closing guiding rod positioning hole 721 and the closing guide rod limiting convex Between Taiwan 725. One end of the closing guide 72 is provided with a closing guide buckle 724 which can be respectively connected with the closing half shaft 63 and the driving guide 74, and the closing guide buckle 724 is bent upward. A groove for accommodating the closing half shaft 63 is formed between the brake guide bar lock 724 and the closing guide rod positioning hole 721. The outer side wall of the closing guide bar lock 724 is provided with a driving guide protrusion that can be coupled with the driving guide 74. The 741 is matched with the closing guide rod locking bevel 7241. The closing boss 632 of the closing half shaft 63 is disposed corresponding to the driving guide protrusion 741 provided at the end of the driving guide 74 in FIG. 16, and the closing guide buckle 724 can be placed in the closing convex The stage 632 is spaced between the drive guide protrusion 741. The other end of the closing guide 72 is provided with a closing guide limiting boss 725 which can be in contact with the opening half shaft 61. The closing guide limiting bracket 725 has a circular or elliptical cross section. A closing guide groove 726 is provided between the closing guide limiting boss 725 and the closing inclined surface 722, and the opening half shaft 61 passes through the closing guide groove 726.

One end of the opening guide 73 in FIG. 15 is a trip guide triggering end 731 which is in contact with the opening button 66, and the other end of the opening guide 73 is in contact with the opening plane 615 of the opening half shaft 61. The opening guide rod driving end 732 is further provided, and the opening guide rod 73 is further provided with a opening guide rod limiting groove 733 for guiding the limit and a opening guide rod hanging spring hook 734 for pulling the reset.

The drive guide 74 of FIG. 16 includes a drive guide mounting bracket 742, a drive guide mounting hole is provided in the middle of the drive guide mounting bracket 742, and a drive guide spring hole 743 is provided on the side with a suspension drive guide rod return spring; The side of the driving guide mounting bracket 742 is provided with a driving guide protrusion 741 that cooperates with the closing button 65 and the closing guide 72.

The middle portion of the energy storage indicating member 75 is provided with an indicator positioning hole 751 connectable to the driving shaft 30. One end of the energy storage indicating member 75 is provided with an indicator circular surface 752 which can be in contact with the disk 34. The other end of the member 75 is provided with an indicator plane 753 which can be in contact with the interlocking guide arc surface 712. The edge of the energy storage indicator 75 is further provided with an interlocking with the end of the interlocking guide arc surface 712. The guide rod round surface 713 contacts the connected indicator arc surface 754, and the indicator edge of the energy storage indicator 75 is further provided with an indicator hook spring hook 755 for mounting the indicator spring.

The specific operating states of the components of the energy storage operating mechanism 99 of the present invention during the opening and closing process are as follows:

When the release is released. When the energy storage operation mechanism 99 releases the energy, no elastic pressing connection is formed between the cam assembly 3 and the energy storage assembly 4 as shown in FIG. 26, and the end of the closing lock 64 and the cam roller of the cam 33 are simultaneously rolled. There is no lock connection between the children 35. When the control assembly 6 and the interlock assembly 7 shown in FIG. 20 release the energy, the interlocking guide rod round surface 713 is pressed against the indicator plane 753 of the energy storage indicating member 75, The indicator circular surface 752 is placed on the circular surface 341 of the disc 34, and the closing slope 722 of the closing guide 72 is held by the interlocking guide cylindrical surface 714 of the interlocking guide 71, at this time, the closing guide rod lock The buckle 724 is located on the side of the closing boss 632 and the driving guide protrusion 741 and is not in contact with the two. When the linkage assembly 2 shown in FIG. 17 releases the energy, the strike pin 44 on the energy storage assembly 4 presses the strike roller 24, and the link pin 216 is located at the link drive hole 232 and the jumper connection end 214. Above the wire, the lock bearing 622 abuts against the first jumper profile surface 212, the jumper spring 25 is in the tensile energy storage state, and the spindle assembly 5 is in the open position and the main pull spring 49 is in the contraction release state. . The opening lock 62 of the control assembly 6 is caused by the lock spring 621 so that the lock bearing 622 mounted at one end of the trip lock 62 is in contact with the first jumper profile surface 212 on the side of the jumper 2, and simultaneously The latching end 623 of the other end of the opening latch 62 abuts against a semicircular plane 611 in the middle of the opening half shaft 61.

When the storage is blocked. When the control assembly 6 and the interlock assembly 7 shown in FIG. 21 are stored in the opening, the indicator circular surface 752 of the energy storage indicator 75 falls into the disc notch 342, and the interlocking guide of the interlocking guide 71 is engaged. The circular surface 713 is in contact with the indicator arc surface 754 of the energy storage indicator 75. When the end of the interlocking guide 71 swings to correspond to the end of the closing slope 722, the interlocking guide 71 is not limited. Closing guide rod 72, closing guide rod 72 is reset and rotated by closing guide rod spring, so that closing guide rod lock 724 of closing guide rod 72 is placed in closing projection 632 and driving guide protrusion 741 In order to complete the preparatory work before the closing, in particular, as shown in FIG. 22, when the energy storage operating mechanism 99 is in the energy storage state, the opening button 66 is pressed or the opening half shaft 61 is directly pressed, and the closing is performed. The closing guide limiting boss 725 of the guiding rod 72 is pushed by the opening half shaft limiting plane 612 of the opening half shaft 61, so that the closing guide buckle 724 can be returned to the closing boss 632 again. One side of the guide rod projection 741 is driven, at which time the closing button 65 is disabled. The cam assembly 3 shown in Fig. 25 drives the energy storage bearing 43 in the energy storage unit 4 to move the end of the energy storage lever 42 with the energy storage bearing 43 upward while squeezing the other end of the energy storage spring 48 for energy storage. The end of the closing lock 64 is interlocked with the cam roller 35 of the cam 33. When the connecting rod assembly 2 shown in FIG. 18 is stored in the energy storage, the energy storage assembly 4 completes the energy storage so that the striking pin 44 no longer squeezes the striking roller 24, and the trip spring 25 releases the energy to drive the jumper 21 relative to The drive shaft 30 rotates, and the lock bearing 622 slides along the first jumper contour surface 212 toward the U-shaped groove 213 until the lock bearing 622 falls into the U-shaped groove 213 and contacts the U-shaped groove lower plane 2131. The connecting rod connecting pin 216 is still located above the connecting line of the connecting rod driving hole 232 and the jumper connecting end 214 and the main pulling spring 49 is in the state of contraction release, and the trip button 21 is limited by the opening lock 62, and is divided. The latching end 623 of the brake latch 62 moves below the shuttering half shaft 61.

When the switch is released. When the energy storage operating mechanism 99 is in the dissolving energy storage state and the opening button 66 or the opening half shaft 61 is not pressed, the closing button 65 is pressed to drive the guide rod protrusion 741 and the closing guide rod lock. The closing guide buckle locking surface 7241 on the buckle 724 is in contact connection and drives the closing guide rod locking 724 to drive the closing half shaft 63 to rotate through the tripping position, thereby causing the closing lock 64 and the cam roller 35 to be separated from each other. The buckle, the energy storage spring 48 releases energy, and the strike pin 44 pushes the link assembly 2 and the shaft assembly 5 to complete the closing. When the control assembly 6 and the interlock assembly 7 shown in FIG. 23 are released and released, the second cantilever 52 The interlocking guide rod arc surface 712 of the interlocking guide rod 71 is pressed, and the interlocking guide rod cylindrical surface 714 is pressed against the closing inclined surface 722 of the closing guide rod 72, at which time the closing guide rod locking 724 is again closed. The boss 632 and the side of the drive guide protrusion 741 are not in contact with each other, and the indicator circular surface 752 of the energy storage indicator 75 is again placed on the circular surface 341 of the disk 34. When the link assembly 2 shown in FIG. 19 is released, the energy storage assembly 4 is released, and the strike pin 44 strikes the strike roller 24 such that the link pin 216 is located at the link drive hole 232 and the jumper connection end 214. Below the line, at this time, the U-shaped groove upper surface 2132 is in contact with the lock bearing 622, and the link driving hole 232 pulls the rotating shaft assembly 5 through the connecting pin 54 while the main pulling spring 49 is in the tensile energy storage state, and the rotating shaft assembly 5 Drive the contact system to close when turning.

When closing the energy storage. When the control assembly 6 and the interlock assembly 7 shown in FIG. 24 are closed for energy storage, the indicator circular surface 752 of the energy storage indicator 75 falls into the disc notch 342 again, and other interlocking states and closing energies are released. The state is the same, and the closing guide bar lock 724 is not in contact with the two sides of the closing boss 632 and the driving guide protrusion 741, and the closing button 65 is disabled.

In summary, since the link assembly 2 and the cam assembly 3 are mounted on one side of the energy storage assembly 4, the energy storage assembly 4 and the cam assembly 3 move in opposite directions during the closing process, and the cam assembly 3 is not subjected to secondary Strike, the positioning of the cam assembly 3 after closing is more accurate and stable, and the energy loss during the closing process is reduced, the use efficiency is improved and the structure is compact, and the energy storage assembly of the existing energy storage operating mechanism is closed. There is a hidden danger of secondary strikes in the same direction as the movement of the cam assembly.

In addition, the closing guide bar lock 724 can enter the closing boss 632 only when the energy storage operating mechanism 99 is in the state of opening and storing energy and the opening button 66 or the opening half shaft 61 is not pressed. The closing button 65 is effective between the driving guide protrusions 741. In any other state, the closing guide bar lock 724 is located on the side of the closing boss 632 and the driving guide protrusion 741, and the closing button 65 is disabled. The closing guide of the closing guide rod on the closing of the closing guide rod of the closing guide rod is always pressed on the closing half shaft during the closing process, which improves the reliability of the closing process. The closing guide of the closing guide at the other end of the closing guide can ensure that the energy storage operating mechanism can reduce the closing of the closing button when the energy storage device is opened and the opening button or the opening half shaft is not pressed. Safety used by energy storage operators. At the same time, the interlocking guide rod realizes the upper and lower linkage of the rotating shaft assembly and the control assembly, so that the structure of the energy storage operating mechanism is compact and the use efficiency is improved.

The handle assembly 8 is mounted on the drive shaft 30 and placed outside the side panel assembly 1. The handle assembly 8 of FIG. 29 includes a handle 81 mounted on the drive shaft 30 and a ratchet 87 fixedly mounted to the drive shaft 30. One end of the handle 81 is a handle driving portion that can be drivingly coupled to the ratchet 87, and the other end is a handle operating portion that can be used to apply an external force. The side plate assembly 1 of Fig. 33 is further provided with a second pawl 86, the first pawl 83 and the second pawl 86 being symmetrically disposed with respect to the ratchet 87, and the first pawl 83 and the second pawl 86 can simultaneously Engaging with the serrations of the rim of the ratchet 87, the first pawl 83 and the second pawl 86 are respectively mounted with pawl springs 85. The two pawls, which are respectively mounted on the handle and the side plate assembly and symmetrically arranged, ensure that the handle can always drive the drive shaft in one direction during the energy storage process, thereby improving the safety and reliability of the handle. Specifically, the first pawl 83 in FIG. 29 is further provided with a driving curved surface 832 which can be connected with the serration of the edge of the ratchet 87. When the energy is stored, the handle operating portion of the operable handle 81 drives the handle driving portion to rotate in one direction. The drive surface 832 drives the ratchet wheel 87 to rotate in the same direction, thereby driving the cam assembly 3 on the drive shaft 30 to complete the energy storage of the energy storage assembly 4. Preferably, the first pawl 83 is movable relative to the handle 81 such that the handle 81 produces an idle stroke relative to the ratchet 87 upon initial operation of the stored energy. The handle can generate a certain idle stroke during use, which facilitates the removal of the handle from the mask of the circuit breaker, which makes the operation convenient and improves the use efficiency. In addition, the shape of the edge of the ratchet 87 is a dense tooth shape, and the dense tooth structure makes the handle small in size and easy to operate, thereby improving the use efficiency.

The handle 83 is provided with a handle positioning hole 831 for mounting. The handle positioning hole 831 of FIG. 29 mounts the pawl 83 on the handle driving portion through the positioning pin 84. The positioning pin 84 is fixed on the handle 81 and positioned. The pin 84 is movable within the handle positioning hole 831. The fixing manner of the positioning pin is simple to realize an empty stroke space between the positioning pin and the handle positioning hole. In particular, the shape of the handle positioning hole 831 is elliptical, and the elliptical handle positioning hole 831 allows the handle 81 to generate an idle stroke at the start of energy storage. In addition, a handle positioning protrusion 815 is further disposed on the edge of the handle driving portion, and the side plate assembly 1 in FIG. 33 is further provided with a handle positioning post 17 that can be in contact with the handle positioning protrusion 815, and the handle 81 and the handle are positioned. A handle return spring 18 is provided between the columns 17. The handle positioning protrusion limits the distance of the handle returning, which ensures the consistency of the energy storage process of the handle each time. The handle 81 is mounted on the drive shaft 30 and disposed adjacent to the outer side wall of the second side panel 12, and the first pawl 83 is mounted on a side of the handle 81 corresponding to the outer side wall of the second side panel 12. The setting of the first pawl is relatively concealed, which improves the safety and stability during use of the handle.

An elongated handle 82 rotatable relative to the handle 81 is further mounted on the handle operating portion of the handle 81. The end of the handle operating portion of the handle 81 is rotatably coupled to the corresponding end of the elongated handle 82, and the handle 82 is extended when deployed. The handle can be rotated 180° around the end thereof, and the extended handle 82 is provided with a handle folding cavity 820. When folded, the end of the handle 81 can be placed in the handle folding cavity 820, and the end side of the handle 81 is further provided. There is a handle limit stop 810 that is engageable with the two side edges of the handle folding cavity 820. The end portion of the handle operating portion shown in FIG. 29 and FIG. 32 is provided with a positioning cylinder 811, a guiding boss 812, a rounded feature 813 and a first limiting plane 814. The end of the elongated handle 82 is provided with a handle operating portion. The end portion corresponds to the positioning hole 821, the positioning groove 822, the guiding slope 823 and the second limiting plane 824. Specifically, the guiding boss 812 is disposed at the end side of the handle operating portion and the guiding boss 812 can be mated with the positioning groove 822. The edge of the guiding boss 812 is provided with a guiding position with the end of the positioning groove 822. The inclined surface 823 contacts the connected rounded corners 813. The positioning cylindrical 811 is mounted on the guiding boss 812 and can be connected and connected with the positioning hole 821. The first limiting plane 814 and the second limiting plane 824 are The elongated handle 82 is in contact with each other when deployed. The guiding boss of the handle cooperates with the positioning groove of the elongated handle to ensure that the elongated handle is less likely to sway in the folded and unfolded state, and the stability and reliability of the extended handle is improved. The combination of the guiding bevel and the rounded corner feature makes the assembly and installation of the extended handle and the handle easier and more convenient, thereby improving the installation efficiency. It is easily conceivable that the positioning hole 821 and the positioning groove 822 can also be disposed at the end of the handle 81, and the correspondingly disposed positioning cylinder 811 and the guiding boss 812 can be disposed on the elongated handle. The end of 82. That is, the connection structure of the end of the handle 81 and the lengthened handle 82 can be interchanged to realize the rotational connection of the handle 81 and the extended handle 82. Of course, the handle folding chamber 820 is disposed on the handle 81, and the extended handle 82 is placed in the handle folding cavity 820 when folded. it is also fine. The handle folding chamber is placed on the extended handle to ensure the strength of the handle.

In particular, one side of the second limiting plane 824 is provided with a circular arc feature 827 that can be in contact with a corresponding side of the first limiting plane 814. The circular arc feature makes the extended handle smoother and improves the efficiency of use. In addition, the end surface of the handle 81 is provided with a first anti-slip serration 816, and the end surface of the extension handle 82 is provided with a second anti-slip serration 825 which can be used with the first anti-slip serration 816 when the handle assembly 8 is folded. The first anti-slip serration and the second anti-slip serration can increase the friction coefficient of the handle assembly when the handle assembly is in the folded state, thereby improving the reliability and operational efficiency of the operation process. The side wall of the elongated handle 82 is also provided with a third anti-slip serration 828 for anti-slip when the handle assembly 8 is unfolded. The third anti-slip serration increases the coefficient of friction of the handle assembly during deployment, further improving operational stability.

For example, as shown in FIG. 32, the two sides of the handle portion of the handle are respectively provided with guiding bosses 812, and each of the guiding bosses 812 is respectively provided with a positioning cylinder 811. The elongated handle 82 includes two extended handle mounting pieces 826 disposed oppositely, and the two extended handle mounting pieces 826 form a handle folding cavity 820. The ends of the two extended handle mounting pieces 826 are oppositely disposed to be respectively associated with the guiding bosses. The 812 is matched with the positioning slot 822, and each of the positioning slots 822 is further provided with a positioning hole 821 which is respectively rotatably connected to the positioning cylinder 811, and a second limiting plane 824 is respectively disposed on an end surface of each of the elongated handle mounting pieces 826. The two ends of the end portion of the handle 81 are respectively provided with a first limiting plane 814 that can be attached to the second limiting plane 824 when the handle assembly 8 is deployed.

The mounting and use process of the handle assembly 8 of the present invention is as follows. When the elongated handle 82 is mounted, the guiding ramp 823 is first aligned with the guiding boss 812, and then the elongated handle 82 is pushed along the guiding boss 812 toward the handle 1 side. The pressing causes the positioning cylinder 811 to enter the positioning hole 821, and the engagement of the positioning groove 822 and the guiding boss 812 causes the elongated handle 82 to be effectively restrained and does not easily unfold. At the beginning of the manual energy storage, the extension handle 82 is rotated out of the protection mask of the circuit breaker, and the extension handle 82 is rotated 180° around the positioning cylinder 811 in the folded state (as shown in FIG. 30) so that the extension handle 82 is completely opposite to the handle 81. Expanding (as shown in FIG. 31), the first limiting plane 814 and the second limiting plane 824 are correspondingly connected to each other, and when the energy is stored by using the elongated handle 82, the positioning slot 822 is coordinated with the guiding boss 812. Therefore, the lengthening handle 82 is also not easily folded to ensure the reliability of use.

The electric motor 9 of the present invention is mounted on one side of the energy storage operation mechanism 99, and the energy storage operation mechanism 99 can perform automatic energy storage. Specifically, the motor 9 in FIG. 35 is mounted on the side plate assembly 1 side of the energy storage operation mechanism 99. The outer side wall of the side panel assembly 1 is further mounted with a plurality of positioning shafts for the limit mounting and the fixed connection. The positioning shaft in FIG. 34 includes a first positioning shaft 901 and a second positioning shaft 902, in FIG. A first positioning hole 903, a second positioning hole 904 and a third positioning hole 905 respectively connected to the first positioning shaft 901, the second positioning shaft 902 and the driving shaft 30 are disposed on the side wall of the motor 9. The positioning shaft of the invention can simultaneously complete the limit installation and the fixed connection of the motor and the side plate assembly, thereby ensuring the stability of the installation and improving the installation efficiency.

The end of the first positioning shaft 901 in FIG. 34 may be fixedly coupled to the side wall of the motor 9, the end of the second positioning shaft 902 is limitedly mounted to the side wall of the motor 9, and the motor 9 and the side plate assembly 1 are mounted. The end of the drive shaft 30 and the end of the second positioning shaft 902 are respectively placed in the motor 9. Preferably, the end of the first positioning shaft 901 is provided with an internally threaded hole 901a, and the internally threaded hole 901a is correspondingly connected with the first positioning hole 903 and fixedly connected by a fixing bolt 901b (as shown in FIG. 36). The end of the second positioning shaft 902 is provided with a circular boss 902a. When the motor 9 is mounted, the circular boss 902a can be placed in the second positioning hole 904 for limiting installation. The positioning plate with different function functions is arranged on the side plate assembly, which improves the accuracy and installation efficiency of the motor installation process.

The first positioning shaft 901, the second positioning shaft 902, and the drive shaft 30 are disposed on the side plate assembly 1 in a triangular shape. In particular, the first positioning shaft 901 and the second positioning shaft 902 are respectively disposed on both sides of the drive shaft 30. The distribution shape of the drive shaft and the two positioning shafts ensures the stability of the installation, and the positioning shafts distributed on both sides of the drive shaft ensure the accuracy of the installation.

The motor 9 in FIG. 35 includes a driving connection chassis 910 and a motor 920. The chassis 910 is provided with a sidewall corresponding to the energy storage operating mechanism 99 for mounting the first positioning shaft 901, the second positioning shaft 902 and the driving shaft. The first positioning hole 903, the second positioning hole 904, and the third positioning hole 905 of the 30, and the motor 920 can be mounted at the top or the bottom of the chassis 910. And a handle assembly 8 for manual energy storage is also installed between the motor 9 and the energy storage operating mechanism 99. The motor mounting structure is simple and easy to assemble and maintain, and the handle is set to reach the section. The purpose of saving space.

The above is a further detailed description of the present invention in connection with the specific preferred embodiments, and the specific embodiments of the present invention are not limited to the description. It will be apparent to those skilled in the art that the present invention may be made without departing from the spirit and scope of the invention.

Claims

An energy storage operation mechanism for a circuit breaker, comprising a handle (81) mounted on a drive shaft (30), characterized in that: a ratchet wheel (87) and a cam assembly are fixedly mounted on the drive shaft (30) ( 3), the cam assembly (3) is in contact with the energy storage component (4) of the circuit breaker, and the handle (81) can rotate the drive shaft (30) through the ratchet (87) to drive the cam assembly (3) to drive energy. The storage assembly (4) performs energy storage, and the handle (81) is mounted with a first pawl (83) that engages with the serration of the edge of the ratchet (87).
The energy storage operation mechanism of the circuit breaker according to claim 1, wherein said drive shaft (30) is rotatably mounted on a side plate assembly (1) for fixing, and said ratchet (87) is fixed. Mounted on a drive shaft (30), the handle (81) is rotatable relative to the drive shaft (30), one end of the first pawl (83) is coupled to the handle (81) and the other end is coupled to the handle (81) A pawl spring (85) is provided, and the first pawl (83) is further provided with a driving curved surface (832) engageable with the serration of the ratchet (87).
The energy storage operation mechanism of the circuit breaker according to claim 2, characterized in that: the side plate assembly (1) is further provided with a second pawl (86), and the first pawl (83) and the The two pawls (86) are simultaneously engageable with the serrations of the rim of the ratchet (87), and the first pawl (83) and the second pawl (86) are respectively mounted with a pawl spring (85), the first pawl ( 83) and the second pawl (86) are symmetrically disposed with respect to the ratchet (87).
The energy storage operation mechanism of the circuit breaker according to claim 1, wherein the first pawl (83) is provided with a handle positioning hole (831), and the handle positioning hole (831) is installed in the handle. A positioning pin (84) for mounting the first pawl (83) on the handle (81), the positioning pin (84) is fixed to the handle (81) and the positioning pin (84) is locating in the handle (831) The inner movement causes the handle (81) to generate an idle stroke relative to the ratchet (87) when starting to operate the energy storage.
The energy storage operation mechanism of the circuit breaker according to claim 1, wherein one end of the handle (81) is a handle driving portion connected to the circuit breaker, and the other end is a handle operating portion for applying an external force, and An elongated handle (82) rotatable relative to the handle (81) is mounted on the handle operating portion.
The energy storage operation mechanism of the circuit breaker according to claim 5, characterized in that the end of the handle operating portion of the handle (81) is rotatably connected to the corresponding end of the elongated handle (82), and the handle is extended (82). There is a handle folding cavity (820), and the end of the handle (81) can be placed in the handle folding cavity (820) when folded.
The energy storage operation mechanism of the circuit breaker according to claim 6, characterized in that: the end side of the handle operating portion of the handle (81) is provided with a positioning cylinder (811), and the end of the elongated handle (82) The positioning portion is provided with a positioning hole (821) rotatably connected to the positioning cylinder (811), the extension handle (82) is rotatable around the positioning cylinder (811), and the positioning cylinder (811) is mounted on the side of the handle portion of the handle. On the table (812), a positioning hole (821) is formed on the positioning groove (822) at the end of the elongated handle (82), and the guiding boss (812) is matched with the positioning groove (822) when being unfolded or folded. Bit connection.
The energy storage operation mechanism of the circuit breaker according to claim 1, further comprising an electric motor (9) for automatically storing the energy storage operation mechanism (99), wherein the electric motor (9) is installed in the storage On one side of the operable mechanism (99), the energy storage operating mechanism (99) is mounted with a drive shaft (30) drivingly coupled to the motor (9), and the drive shaft (30) can drive the energy storage operation mechanism. (99) Energy storage; the motor (9) is mounted on one side of the side plate assembly (1) of the energy storage operating mechanism (99), and the outer side wall of the side plate assembly (1) is further provided with a plurality of positions for limiting a fixed and fixed positioning shaft, the positioning shaft includes a first positioning shaft (901) and a second positioning shaft (902), and the side wall of the motor (9) is provided with a first positioning shaft (901), The second positioning shaft (902) and the driving shaft (30) respectively correspond to the first positioning hole (903), the second positioning hole (904) and the third positioning hole (905).
The energy storage operation mechanism of the circuit breaker according to claim 8, wherein an end of the first positioning shaft (901) is fixedly coupled to a side wall of the motor (9), and the second positioning shaft ( The end of the 902) is fixedly mounted to the side wall of the motor (9), and the end of the drive shaft (30) and the end of the second positioning shaft (902) when the motor (9) and the side plate assembly (1) are mounted are mounted. They are respectively placed in the motor (9), and the end of the second positioning shaft (902) is provided with a circular boss (902a). When the motor (9) is mounted, the circular boss (902a) can be placed in the second positioning hole. Used in (904) for limit installation.
The energy storage operation mechanism of the circuit breaker according to claim 8, wherein the electric motor (9) and the energy storage operation mechanism A handle assembly (8) for manual energy storage is also installed between (99), the handle assembly (8) including a handle (81) mounted on the drive shaft (30).
The energy storage operation mechanism of the circuit breaker according to claim 4, wherein the handle positioning hole (831) has an elliptical structure, and the edge of the ratchet (87) has a dense tooth structure.
The energy storage operation mechanism of the circuit breaker according to claim 2, characterized in that the edge of the handle (81) is provided with a handle positioning protrusion (815) for limiting, the side plate assembly (1) There is also a handle positioning post (17) connectable to the handle positioning projection (815), and a handle return spring (18) is disposed between the handle (81) and the handle positioning post (17).
The energy storage operation mechanism of the circuit breaker according to claim 7, wherein the end of the positioning groove (822) is provided with a guiding slope (823), and the edge of the guiding boss (812) is provided. A rounded feature (813) that can be in contact with the positioning groove (822) and the guiding bevel (823), respectively. When the elongated handle (82) and the handle (81) are mounted, the guiding boss (812) can pass through the guiding bevel (823). Sliding into the positioning groove (822) and positioning the cylinder (811) and the positioning hole (821) are connected to complete the limit.
The energy storage operation mechanism of the circuit breaker according to claim 6, wherein the end portion of the handle (81) is further provided with a handle limit which can be in contact with both side edges of the handle folding chamber (820) when folded. a baffle plate (810); an end of the handle limiting baffle (810) is provided with a first limiting plane (814), and an end surface of the elongated handle (82) is provided with a first limiting plane ( 814) contacting the second limiting plane of the connection (824), and the first limiting plane (814) is aligned with the second limiting plane (824) when the elongated handle (82) is rotated 180° relative to the handle (81). Connecting, one side of the second limiting plane (824) is provided with a circular arc feature (827) that can be in contact with the corresponding side of the first limiting plane (814), and the side of the elongated handle (82) is provided for easy deployment. Expand the operation section.
The energy storage operation mechanism of the circuit breaker according to claim 6, wherein the end of the first positioning shaft (901) is provided with an internally threaded hole (901a), and the internally threaded hole (901a) is Correspondingly connected with the first positioning hole (903) and fixedly connected by a fixing bolt (901b), the first positioning shaft (901), the second positioning shaft (902) and the driving shaft (30) are arranged in a triangle shape on the side. On the plate assembly (1), and a first positioning shaft (901) and a second positioning shaft (902) are respectively disposed on both sides of the drive shaft (30).