CN219144071U - Mechanical emergency starting device - Google Patents
Mechanical emergency starting device Download PDFInfo
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- CN219144071U CN219144071U CN202222536592.1U CN202222536592U CN219144071U CN 219144071 U CN219144071 U CN 219144071U CN 202222536592 U CN202222536592 U CN 202222536592U CN 219144071 U CN219144071 U CN 219144071U
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- sliding
- emergency starting
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Abstract
The utility model relates to a mechanical emergency starting device which comprises a base, a cover body arranged on the base and an emergency starting mechanism, wherein the emergency starting mechanism comprises a rotary table, a sliding block, an energy storage component, an output pressing block, a spring and a rotating arm, the sliding block is arranged on the base, the sliding block is arranged in the base in a transverse sliding manner and is in linkage fit with the rotary table, the energy storage component is arranged between the sliding block and the base, the output pressing block is longitudinally arranged in the base in a sliding manner, the spring is arranged between the output pressing block and the base, the rotating arm is arranged in the base in a rotating manner and is in linkage fit with the sliding block, one end of the rotating arm is provided with a driving arm matched with the output pressing block, the driving arm moves along with the rotating arm and can be in interference fit with the output pressing block, and the linkage fit between the output pressing block and the rotating arm is formed, and the output pressing block moves along with the rotating arm and can drive two alternating-current contactors to execute opening or closing actions. The utility model has the advantages of simple structure, stable and reliable performance, long service life and low cost, and can effectively realize the quick opening and closing of the alternating current contactor.
Description
Technical Field
The utility model relates to the technical field of piezoelectric devices, in particular to a mechanical emergency starting device for an alternating-current contactor.
Background
The ac contactor is an electric appliance in which a magnetic field is generated by a current flowing through a coil in industrial electricity, so that a contact is closed to control a load. The alternating current contactor is widely applied to a control circuit of the fire pump, and under the normal condition of the control circuit, after the coil of the alternating current contactor is electrified, the current flowing through the coil generates a magnetic field to enable the armature to attract the iron core and drive the main contact of the alternating current contactor to be closed, and a main loop is connected. When the coil of the alternating current contactor is powered off, the current flowing through the coil disappears, the electromagnetic attraction force of the armature also disappears, and the armature is released under the action of the release spring, so that the main contact of the alternating current contactor is separated, and the main circuit is disconnected. The power for the ac contactor action is due to the magnetic field generated by the passage of current through the ferrous coil. Therefore, under the condition that the controller fails or the control circuit fails, the conventional alternating current contactor loses a power source for action, so that the main contact cannot act. At this time, if a fire occurs, the fire pump cannot be started, and the fire control system fails. Therefore, a mechanical emergency starting device for controlling an ac contactor is appeared on the market, and the mechanical emergency starting device is mainly used for mechanically starting the fire pump in emergency by personnel with management authority or other occasions requiring mechanical emergency starting of the fire pump in emergency when a fire pump cabinet controller or an ac contactor secondary line for controlling the fire pump fails. However, the existing mechanical emergency starting device is complex in structural design and high in production cost, and the aim of realizing quick-opening and quick-closing of the alternating-current contactor cannot be achieved, so that the breaking capacity of the alternating-current contactor is weak.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the mechanical emergency starting device which has the advantages of simple structure, stable and reliable performance, long service life and low cost and can effectively realize the quick opening and closing of the alternating current contactor.
In order to achieve the above purpose, the mechanical emergency starting device comprises a base, a cover body arranged on the base and an emergency starting mechanism, wherein the emergency starting mechanism comprises a rotary table arranged on the base in a rotating mode, a sliding block transversely arranged in the base and in linkage with the rotary table, an energy storage component arranged between the sliding block and the base, an output pressing block longitudinally arranged in the base in a sliding mode, a spring arranged between the output pressing block and the base, and a rotating arm rotatably arranged in the base and in linkage with the sliding block, one end of the rotating arm is provided with a driving arm matched with the output pressing block, the driving arm moves along with the rotating arm and can abut against the output pressing block, the output pressing block is in linkage fit with the rotating arm, the output pressing block moves along with the rotating arm and can drive two alternating-current contactors to execute opening or closing actions, two micro-switches matched with the rotary table are respectively arranged on the base, and when the rotary table rotates, the rotary table can trigger the two micro-switches to realize connection or disconnection of the two micro-switches.
The beneficial effects of the structure are as follows: the mechanical emergency starting device adopts an energy storage type structural design, and the energy storage assembly can accelerate the opening and closing operation speed of the emergency starting mechanism, so that the purpose of quick opening and closing of two alternating current contactors can be achieved, and the breaking capacity is higher. When the rotary table is rotated, the rotary table drives the sliding block to slide, the sliding block compresses the energy storage component to realize energy storage of the energy storage component when the sliding block slides past the dead point (midpoint), the energy storage component releases energy, so that the sliding motion can be accelerated, the sliding block can drive the rotary arm and the output pressing block to rapidly act, and rapid opening or closing of two alternating current contactors is realized. The two micro-switches can monitor the working position of the turntable, and the two micro-switches can send the monitored signals to the background so as to realize remote monitoring of the mechanical emergency starting assembly. Therefore, the mechanical emergency starting device has the advantages of simple structure, stable and reliable performance, long service life, low cost and capability of effectively realizing the quick opening and closing of the alternating current contactor.
The energy storage assembly comprises two groups of spring energy storage groups which are respectively arranged between two ends of the sliding block and the base, wherein each spring energy storage group comprises a spring supporting piece which is longitudinally arranged in the base in a sliding mode, an energy storage spring which is arranged between the spring supporting piece and the base, and a connecting rod, one end of the connecting rod is rotatably arranged on the spring supporting piece, the other end of the connecting rod is rotatably arranged at one end of the sliding block, linkage matching of the connecting rod and the sliding block is formed, and the spring supporting piece acts along with the sliding block and can longitudinally reciprocate in the base. The energy storage assembly can accelerate the opening and closing operation speed of the emergency starting mechanism, when the emergency starting mechanism is operated, the turntable is rotated to drive the sliding block to slide, when the sliding block acts, the sliding block compresses the energy storage spring to store energy of the energy storage spring, when the sliding block slides past a dead point (middle point), the energy storage spring releases energy, so that the sliding action can be accelerated, the sliding block can drive the rotating arm and the output pressing block to act rapidly, and therefore quick opening or closing of the two alternating-current contactors is realized. The spring energy storage group is simple in structural design and lower in production cost.
Particularly, the basic shape of the spring support is cylindrical, a sliding groove matched with the spring support is formed in the base, the spring support is arranged in the sliding groove, bar-shaped protruding blocks are respectively arranged on two sides of the spring support, a guide groove matched with the bar-shaped protruding blocks is formed in the sliding groove, and the bar-shaped protruding blocks move along with the spring support and can slide back and forth in the guide groove. The bar-shaped lug of the spring support piece is clamped in the guide groove, so that the spring support piece and the shell are convenient to assemble, the assembly is more convenient, the spring support piece can reliably act in the shell, and the improvement of the working reliability of the mechanical emergency starting device is facilitated.
Particularly, a poking hole matched with the rotating arm is formed in the sliding block, a linkage arm matched with the sliding block is arranged at the other end of the rotating arm, and one end of the linkage arm extends into the poking hole and forms linkage matching of the linkage arm and sliding. The rotating arm is provided with a linkage arm which is inserted into the shifting hole, so that the transmission of the sliding block and the rotating arm is ensured to be more reliable.
Particularly, the two sides of the middle part of the rotating arm are respectively provided with a positioning shaft, the base is internally provided with a positioning groove matched with the positioning shafts, and the positioning shafts are clamped in the positioning grooves and form the rotating connection fit of the rotating arm and the base. The rocking arm block is in the base, and the assembly of rocking arm and base of being convenient for, it is more convenient to assemble.
Particularly, one side of the rotary table is provided with a handle operation hole extending out of the cover body, the other side of the rotary table is provided with a deflector rod matched with a sliding block, the sliding block is provided with a limit groove matched with the deflector rod, one end of the deflector rod penetrates through the arc-shaped groove of the base and extends into the limit groove, and the deflector rod is in linkage fit with the deflector rod. The turntable drives the sliding block to act through the deflector rod, so that the turntable and the sliding block can be driven more reliably, and the handle operation hole is formed in the turntable, thereby facilitating the operation of a user and being more convenient to operate.
Particularly, the two sides of the sliding block are respectively provided with a guide block, the base is internally provided with a sliding groove matched with the guide blocks, the guide blocks are clamped in the sliding groove, and the guide blocks move along with the sliding block and can slide in the sliding groove in a reciprocating manner. The guide block of the sliding block is clamped in the sliding groove of the base, so that the sliding block and the base are convenient to assemble, the sliding block can reliably slide in the base, and the working reliability of the mechanical emergency starting device is improved.
Drawings
Fig. 1 is a perspective view of an emergency start ac contactor according to an embodiment of the present utility model.
Fig. 2 is an exploded view of an embodiment of the present utility model.
Fig. 3 is a cross-sectional view of an embodiment of the present utility model.
Fig. 4 is an internal structural diagram of an embodiment of the present utility model.
Fig. 5 is a perspective view of a swivel arm according to an embodiment of the utility model.
Detailed Description
As shown in fig. 1 to 5, an embodiment of the present utility model is a mechanical emergency starting device, including a base 10, a cover 11 disposed on the base 10, and an emergency starting mechanism 20, where the emergency starting mechanism 20 includes a turntable 21 rotatably disposed on the base 10, a sliding block 22 laterally slidably disposed in the base 10 and cooperatively engaged with the turntable 21, an energy storage assembly 30 disposed between the sliding block 22 and the base 10, an output pressing block 23 longitudinally slidably disposed in the base 10, a spring 24 disposed between the output pressing block 23 and the base 10, and a rotating arm 25 rotatably disposed in the base 10 and cooperatively engaged with the sliding block 22, one end of the rotating arm 25 has a driving arm 251 engaged with the output pressing block 23, the driving arm 251 moves with the rotating arm 25 and can abut against the output pressing block 23, and forms a linkage engagement between the output pressing block 23 and the rotating arm 25, and the output pressing block 23 moves with the rotating arm 25 and can drive two ac contactors 12 to perform opening or closing actions. A driving shaft 26 is arranged between the output pressing block 23 and the moving contact frame of the two alternating current contactors, so that linkage matching of the output pressing block 23 and the moving contact frame can be realized. Two micro switches 40 matched with the turntable 21 are respectively arranged on the base 10, and when the turntable 21 rotates, the turntable 21 can trigger the two micro switches 40 to realize the connection or disconnection of the two micro switches 40. The energy storage assembly 30 comprises two groups of spring energy storage groups 31 which are respectively arranged between two ends of the sliding block 22 and the base 10, the spring energy storage groups 31 comprise spring support members 32 which are longitudinally arranged in the base 10 in a sliding mode, energy storage springs 33 and connecting rods 34 which are arranged between the spring support members 32 and the base 10, one ends of the connecting rods 34 are rotatably arranged on the spring support members 32, the other ends of the connecting rods 34 are rotatably arranged on one ends of the sliding block 22, linkage cooperation between the connecting rods 34 and the sliding block 22 is formed, and the spring support members 32 move along with the sliding block 22 and can longitudinally reciprocate in the base 10. The energy storage assembly can accelerate the opening and closing operation speed of the emergency starting mechanism, when the emergency starting mechanism is operated, the turntable is rotated to drive the sliding block to slide, when the sliding block acts, the sliding block compresses the energy storage spring to store energy of the energy storage spring, when the sliding block slides past a dead point (middle point), the energy storage spring releases energy, so that the sliding action can be accelerated, the sliding block can drive the rotating arm and the output pressing block to act rapidly, and therefore quick opening or closing of the two alternating-current contactors is realized. The spring energy storage group is simple in structural design and lower in production cost. The basic shape of the spring support 32 is cylindrical, a sliding groove 101 matched with the spring support 32 is formed in the base 10, the spring support 32 is arranged in the sliding groove 101, bar-shaped protruding blocks 321 are respectively arranged on two sides of the spring support 32, a guide groove 102 matched with the bar-shaped protruding blocks 321 is formed in the sliding groove 101, and the bar-shaped protruding blocks 321 move along with the spring support 32 and can slide back and forth in the guide groove 101. The bar-shaped lug of the spring support piece is clamped in the guide groove, so that the spring support piece and the shell are convenient to assemble, the assembly is more convenient, the spring support piece can reliably act in the shell, and the improvement of the working reliability of the mechanical emergency starting device is facilitated.
As shown in fig. 2 to 4, the sliding block 22 is provided with a poking hole 221 matched with the rotating arm 25, the other end of the rotating arm 25 is provided with a linkage arm 252 matched with the sliding block 22, and one end of the linkage arm 252 extends into the poking hole 221 and forms linkage fit between the linkage arm 252 and the sliding block 22. The rotating arm is provided with a linkage arm which is inserted into the shifting hole, so that the transmission of the sliding block and the rotating arm is ensured to be more reliable. The two sides of the middle part of the rotating arm 25 are respectively provided with a positioning shaft 253, the base 10 is internally provided with a positioning groove 103 matched with the positioning shafts 253, and the positioning shafts 253 are clamped in the positioning grooves 103 and form the rotating connection fit of the rotating arm 25 and the base 10. The rocking arm block is in the base, and the assembly of rocking arm and base of being convenient for, it is more convenient to assemble. The rotary table 21 is provided with a handle operation hole 211 extending outside the cover 11 on one side, the other side of the rotary table 21 is provided with a deflector rod 212 matched with the slider 22, the slider 22 is provided with a limit groove 222 matched with the deflector rod 212, and one end of the deflector rod 212 passes through the arc-shaped groove 104 of the base 10 and extends in the limit groove 222, and forms linkage matching of the slider 22 and the deflector rod 212. The turntable drives the sliding block to act through the deflector rod, so that the turntable and the sliding block can be driven more reliably, and the handle operation hole is formed in the turntable, thereby facilitating the operation of a user and being more convenient to operate. Guide blocks 223 are respectively arranged on two sides of the sliding block 22, a sliding groove 105 matched with the guide blocks 223 is arranged in the base 10, the guide blocks 223 are clamped in the sliding groove 105, and the guide blocks 223 move along with the sliding block 22 and can slide back and forth in the sliding groove 105. The guide block of the sliding block is clamped in the sliding groove of the base, so that the sliding block and the base are convenient to assemble, the sliding block can reliably slide in the base, and the working reliability of the mechanical emergency starting device is improved.
The mechanical emergency starting device adopts an energy storage type structural design, and the energy storage assembly can accelerate the opening and closing operation speed of the emergency starting mechanism, so that the purpose of quick opening and closing of two alternating current contactors can be achieved, and the breaking capacity is higher. When the rotary table is rotated, the rotary table drives the sliding block to slide, the sliding block compresses the energy storage component to realize energy storage of the energy storage component when the sliding block slides past the dead point (midpoint), the energy storage component releases energy, so that the sliding motion can be accelerated, the sliding block can drive the rotary arm and the output pressing block to rapidly act, and rapid opening or closing of two alternating current contactors is realized. The two micro-switches can monitor the working position of the turntable, and the two micro-switches can send the monitored signals to the background so as to realize remote monitoring of the mechanical emergency starting assembly. Therefore, the mechanical emergency starting device has the advantages of simple structure, stable and reliable performance, long service life, low cost and capability of effectively realizing the quick opening and closing of the alternating current contactor.
Claims (7)
1. The utility model provides a emergent starting drive of machinery, includes base, sets up lid, emergent actuating mechanism on the base, its characterized in that: the emergency starting mechanism comprises a rotary table arranged on a base, a sliding block which is transversely arranged in the base in a sliding manner and is in linkage fit with the rotary table, an energy storage component arranged between the sliding block and the base, an output pressing block which is longitudinally arranged in the base in a sliding manner, a spring arranged between the output pressing block and the base, and a rotary arm which is rotationally arranged in the base and is in linkage fit with the sliding block, wherein one end of the rotary arm is provided with a driving arm which is matched with the output pressing block, the driving arm acts with the rotary arm and can abut against the output pressing block, the linkage fit of the output pressing block and the rotary arm is formed, the output pressing block acts with the rotary arm and can drive two alternating current contactors to execute opening or closing actions, two micro-switches which are matched with the rotary table are respectively arranged on the base, and when the rotary table rotates, the rotary table can trigger the two micro-switches to be connected or disconnected.
2. The mechanical emergency starting device of claim 1, wherein: the energy storage assembly comprises two groups of spring energy storage groups which are respectively arranged between two ends of the sliding block and the base, the spring energy storage groups comprise spring supporting pieces which are longitudinally arranged in the base in a sliding mode, energy storage springs and connecting rods which are arranged between the spring supporting pieces and the base, one ends of the connecting rods are rotatably arranged on the spring supporting pieces, the other ends of the connecting rods are rotatably arranged at one ends of the sliding block, linkage cooperation of the connecting rods and the sliding block is formed, and the spring supporting pieces move along with the sliding block and can longitudinally reciprocate in the base.
3. The mechanical emergency starting device of claim 2, wherein: the spring support is characterized in that the basic shape of the spring support is cylindrical, a sliding groove matched with the spring support is formed in the base, the spring support is arranged in the sliding groove, strip-shaped protruding blocks are respectively arranged on two sides of the spring support, a guide groove matched with the strip-shaped protruding blocks is formed in the sliding groove, and the strip-shaped protruding blocks move along with the spring support and can slide back and forth in the guide groove.
4. The mechanical emergency starting device according to claim 1 or 2, characterized in that: the sliding block is provided with a poking hole matched with the rotating arm, the other end of the rotating arm is provided with a linkage arm matched with the sliding block, and one end of the linkage arm extends into the poking hole and forms linkage matching of the linkage arm and sliding.
5. The mechanical emergency starting device according to claim 1 or 2, characterized in that: the rotary arm is characterized in that positioning shafts are respectively arranged on two sides of the middle of the rotary arm, positioning grooves matched with the positioning shafts are formed in the base, and the positioning shafts are clamped in the positioning grooves and form rotary connection fit of the rotary arm and the base.
6. The mechanical emergency starting device according to claim 1 or 2, characterized in that: the rotary table is characterized in that one side of the rotary table is provided with a handle operation hole extending outside the cover body, the other side of the rotary table is provided with a deflector rod matched with the sliding block, the sliding block is provided with a limiting groove matched with the deflector rod, one end of the deflector rod penetrates through the arc-shaped groove of the base and extends in the limiting groove, and the deflector rod is in linkage fit with the deflector rod.
7. The mechanical emergency starting device according to claim 1 or 2, characterized in that: the sliding block is characterized in that guide blocks are respectively arranged on two sides of the sliding block, a sliding groove matched with the guide blocks is formed in the base, the guide blocks are clamped in the sliding groove, and the guide blocks move along with the sliding block and can slide back and forth in the sliding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222536592.1U CN219144071U (en) | 2022-09-23 | 2022-09-23 | Mechanical emergency starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222536592.1U CN219144071U (en) | 2022-09-23 | 2022-09-23 | Mechanical emergency starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219144071U true CN219144071U (en) | 2023-06-06 |
Family
ID=86598063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222536592.1U Active CN219144071U (en) | 2022-09-23 | 2022-09-23 | Mechanical emergency starting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219144071U (en) |
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2022
- 2022-09-23 CN CN202222536592.1U patent/CN219144071U/en active Active
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