CN213016849U

CN213016849U - Emergency pump starting device for fire-fighting machinery

Info

Publication number: CN213016849U
Application number: CN202021986751.2U
Authority: CN
Inventors: 周立敏
Original assignee: Zhejiang Changji Electrical Technology Co ltd
Current assignee: Zhejiang Changji Electrical Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-04-20
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses an emergency pump starting device of fire-fighting machinery, which comprises a shell, a driving shaft and a plurality of circuit modules, wherein a transmission mechanism is arranged between each circuit module and the driving shaft, each circuit module comprises a static contact piece arranged on the shell, a sliding block arranged on the shell in a sliding way and a movable contact piece moving along with the sliding block, the transmission mechanism comprises a transmission arm rotating along with the driving shaft and a pull rod connecting the transmission arm and the sliding block to enable the transmission arm in rotation to drive the sliding block to reciprocate, the sliding block has a first positioning state and a second positioning state in the moving process, when the sliding block is in a first positioning state, the static contact piece is separated from the movable contact piece, when the sliding block is in a second positioning state, the static contact piece is contacted with the movable contact piece, and a first driving spring which is used for driving the sliding block to switch between the first positioning state and the second positioning state under the action of the pull rod is arranged in the shell. The utility model has the advantages of it is following and effect: the utility model discloses simple structure, installation maintenance cost are low and the good reliability.

Description

Emergency pump starting device for fire-fighting machinery

Technical Field

The utility model relates to a fire-fighting machine technical field, in particular to emergent pump opening device of fire-fighting machine.

Background

The mode that current fire pump control cabinet generally starts through pressure start, remote start and hard act as go-between and starts cooperates the relay to realize automatic pump start, if relay and weak electric signal trouble can not automatic start fire pump when, just need rely on the mechanical emergency pump starting device manual direct start fire pump that sets up in the fire pump control cabinet. However, the existing mechanical emergency pump starting device uses a multi-stage transmission mechanism, and has a complex structure and high installation and maintenance costs. And the complex mechanical structure also greatly increases the failure probability of the mechanical emergency pump starting device, thereby leading to the poor reliability of the existing mechanical emergency pump starting device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a fire-fighting machinery is emergent to open pump unit, this fire-fighting machinery is emergent to open pump unit simple structure, installation maintenance cost are low and the good reliability.

The above technical purpose of the present invention can be achieved by the following technical solutions: an emergency pump starting device of fire-fighting machinery comprises a shell, a driving shaft and a plurality of circuit modules, wherein the driving shaft is rotatably arranged on the shell, the circuit modules are arranged on the shell, a transmission mechanism is arranged between each circuit module and the driving shaft, the transmission mechanism enables the driving shaft to drive the circuit modules to act, each circuit module comprises a static contact piece, a sliding block and a movable contact piece, the static contact piece is arranged on the shell, the sliding block is slidably arranged on the shell, the movable contact piece moves along with the sliding block, the transmission mechanism comprises a transmission arm rotating along with the driving shaft and a pull rod, the pull rod is connected with the transmission arm and the sliding block, the transmission arm in rotation can drive the sliding block to reciprocate, the sliding block has a first positioning state and a second positioning state in the movement process, when the sliding block is in the first positioning state, the static contact piece is separated from the movable contact piece, when the sliding block is in the second positioning state, and the shell is internally provided with a pull rod for And the first driving spring is replaced.

By adopting the technical scheme, a worker manually applies rotating force to the driving shaft to drive the driving shaft to rotate, the driving shaft in rotation drives the sliding block to perform reciprocating motion through the matching between the driving arm and the pull rod, and the sliding block is driven by the driving force of the first driving spring in the reciprocating motion process, so that the sliding block in motion can only perform positioning switching between the first positioning state and the second positioning state, and the sliding block in sliding can not stay at other positions, thereby realizing reliable contact or fruit break separation between the static contact piece and the movable contact piece. The device is simple in structure, low in installation and maintenance cost and good in reliability.

Further setting the following steps: including setting up in the transmission groove of slider and being located the transmission piece of transmission inslot, drive mechanism is including being used for guiding the guide subassembly that the transmission piece moved in the transmission groove and drove the slider and carry out the slip, the pull rod is articulated with the transmission piece.

Through adopting above-mentioned technical scheme, the transmission piece that is located the driving groove can only move along the direction of sliding of slider under the guide of guide subassembly, offsets the mode in the driving groove through the transmission piece and makes the transmission piece can drive the slider and remove. The transmission matching mode is simpler to assemble, reduces the mutual connection interference between parts and makes the assembly more convenient.

Further setting the following steps: the guide assembly comprises a first connecting rod positioned on one side of the sliding block, a second connecting rod positioned on the other side of the sliding block and a second stroke hole formed in the second connecting rod, one end of the first connecting rod is hinged to the transmission block, the other end of the first connecting rod is hinged to the shell, the second connecting rod is rotatably connected with the shell, and the transmission block is hinged to the second stroke hole and is matched with the second stroke hole in a sliding mode.

Through adopting above-mentioned technical scheme, the setting of first connecting rod is spacing to the transmission piece for transmission piece in the motion can only be around swinging in first connecting rod, thereby realizes that the transmission piece slides in the second stroke is downthehole.

Further setting the following steps: the second connecting rod is provided with a sliding plate which reciprocates along the length direction of the second connecting rod, and the first driving spring is sleeved on the second connecting rod and drives the sliding plate to move towards the transmission block.

Through adopting above-mentioned technical scheme, more stable drive power can be applyed to the transmission piece through the slide to first drive spring, makes transmission piece cooperation slider realize more stable switching between first orientation state and second orientation state.

Further setting the following steps: be equipped with along the drive shaft rotation and along drive shaft axial reciprocating motion's limiting plate in the drive shaft, the casing is spacing face corresponding to the one side of limiting plate, be formed with on the spacing face and supply limiting plate pivoted rotation interval, be equipped with the second drive spring that the spacing face of drive limiting plate orientation removed and rotate interval internal rotation in the drive shaft, it is equipped with in the rotation interval and rotates the arch that the in-process is used for driving limiting plate to spacing face motion dorsad at the limiting plate, form two first locating areas and the second locating area that are located protruding both sides and are used for fixing a position the limiting plate between protruding and the rotation interval, work as the limiting plate is located first locating area, the slider is in first locating state, works as the limiting plate is located the second locating area, the slider is in the second locating state.

Through adopting above-mentioned technical scheme, when the limiting plate rotates along with the drive shaft and will follow first locating area and rotate to the second locating area through the arch or rotate to first locating area through the arch from the second locating area, the limiting plate moves and compresses second drive spring back to spacing face under protruding effect, when rotating to another locating area through the arch, the limiting plate moves and strikes in spacing face and makes a sound towards spacing face under the second drive spring effect, can provide a sound suggestion like this for operating personnel, know the emergent state that the pump device was opened to the fire-fighting machinery.

Further setting the following steps: the limiting plate is provided with a guide inclined plane which is matched with the protrusion and used for guiding the limiting plate to move back to the limiting surface.

Through adopting above-mentioned technical scheme, the guide inclined plane makes the process arch that the limiting plate can be better, makes to rotate more smoothly.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses simple structure, installation maintenance cost are low and the good reliability.

Drawings

FIG. 1 is a perspective view of an embodiment;

FIG. 2 is a partial exploded view of an embodiment;

FIG. 3 is a partial schematic structural view of an embodiment;

FIG. 4 is a schematic structural view of a transmission mechanism in the embodiment;

FIG. 5 is a partial schematic diagram of another perspective view of the embodiment;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is another partial exploded view of the embodiment.

In the figure: 1. a housing; 2. a drive shaft; 3. a circuit module; 31. a static contact piece; 32. a slider; 33. a movable contact spring; 4. a transmission mechanism; 41. a drive arm; 42. a pull rod; 43. a first link; 44. a second link; 45. a second travel hole; 5. a first drive spring; 6. a transmission groove; 7. a transmission block; 8. a slide plate; 9. a limiting plate; 10. a limiting surface; 11. a rotation interval; 12. a second drive spring; 13. a protrusion; 14. a first positioning area; 15. a second positioning region; 16. a guide ramp; 17. a first travel hole; 18. a chute.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 to 7, an emergency pump starting device for fire-fighting machinery includes a housing 1, a driving shaft 2 rotatably disposed on the housing 1, and a plurality of circuit modules 3 disposed in the housing 1, wherein the number of the circuit modules 3 is preferably two, and a transmission mechanism 4 for driving the driving shaft 2 to drive the circuit modules 3 to operate is disposed between each circuit module 3 and the driving shaft 2.

The circuit module 3 comprises a static contact 31 fixedly arranged in the shell 1, a sliding block 32 arranged in the shell 1 in a sliding manner, and a movable contact 33 fixedly arranged in the sliding block 32 and capable of contacting with the static contact 31 in the moving process, wherein the shell 1 is provided with a sliding groove 18 for the sliding block 32 to slide. The transmission mechanism 4 includes a transmission arm 41 fixedly disposed on the driving shaft 2 and a pull rod 42 connecting the transmission arm 41 and the slider 32 to enable the transmission arm 41 in rotation to drive the slider 32 to reciprocate, a first stroke hole 17 is formed on the transmission arm 41, and one end of the pull rod 42 connected with the transmission arm 41 is hinged to the first stroke hole 17 and is in sliding fit with the first stroke hole 17.

The sliding block 32 has a first positioning state and a second positioning state in the moving process, when the sliding block 32 is in the first positioning state, the sliding block 32 abuts against one end of the sliding chute 18 and the static contact piece 31 is separated from the movable contact piece 33, and when the sliding block 32 is in the second positioning state, the sliding block 32 abuts against the other end of the sliding chute 18 and the static contact piece 31 is contacted with the movable contact piece 33. A first driving spring 5 which is used for driving the slide block 32 to switch between the first positioning state and the second positioning state under the action of the pull rod 42 is arranged in the shell 1.

The slider 32 is provided with a transmission groove 6, the transmission groove 6 is internally provided with a transmission block 7, the transmission mechanism 4 further comprises a guide component for guiding the transmission block 7 to move in the transmission groove 6 and driving the slider 32 to slide, and the pull rod 42 is hinged with the transmission block 7 with one end back to the first stroke hole 17. The guide assembly comprises a first connecting rod 43 positioned on one side of the sliding block 32, a second connecting rod 44 positioned on the other side of the sliding block 32 and a second stroke hole 45 formed in the second connecting rod 44, one end of the first connecting rod 43 is hinged with the transmission block 7, the other end of the first connecting rod is hinged with the shell 1, the second connecting rod 44 is rotatably connected with the shell 1, and the transmission block 7 is hinged with the second stroke hole 45 and is in sliding fit with the second stroke hole. The second connecting rod 44 is provided with a sliding plate 8 which reciprocates along the length direction of the second connecting rod 44, and the first driving spring 5 is sleeved on the second connecting rod 44 and drives the sliding plate 8 to move towards the transmission block 7.

Be equipped with on drive shaft 2 and rotate and can follow 2 axial reciprocating motion's of drive shaft limiting plate 9 along drive shaft 2, casing 1 is spacing face 10 towards the one side of limiting plate 9, is formed with on the spacing face 10 and supplies the spacing interval 11 of rotation of limiting plate 9 pivoted, and the cover is equipped with drive limiting plate 9 on the drive shaft 2 and moves and at the second drive spring 12 of the interval 11 internal rotations of rotating towards spacing face 10. The rotating interval 11 is internally provided with a bulge 13 which is used for driving the limiting plate 9 to move back to the limiting surface 10 in the rotating process of the limiting plate 9, and the bulge 13 and the limiting surface 10 are integrally arranged.

Two first positioning areas 14 and two second positioning areas 15 which are located on two sides of the protrusion 13 and used for positioning the limiting plate 9 are formed between the protrusion 13 and the rotating area 11, when the limiting plate 9 is located in the first positioning areas 14, the slider 32 is in a first positioning state, and when the limiting plate 9 is located in the second positioning areas 15, the slider 32 is in a second positioning state. The limiting plate 9 is provided with a guide inclined surface 16 which is matched with the protrusion 13 and used for guiding the limiting plate 9 to move back to the limiting surface 10.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a fire-fighting machinery emergency pump starting device, includes casing (1), rotates and sets up in drive shaft (2) of casing (1) and sets up in a plurality of circuit module (3) of casing (1), every all be equipped with between circuit module (3) and drive shaft (2) and make drive shaft (2) can take drive mechanism (4) of circuit module (3) action, circuit module (3) including set up in static contact (31) of casing (1), slide and set up in slider (32) of casing (1) and movable contact (33) along with slider (32) motion, its characterized in that: the transmission mechanism (4) comprises a transmission arm (41) rotating along with the driving shaft (2) and a pull rod (42) connecting the transmission arm (41) and the sliding block (32) to enable the transmission arm (41) in rotation to drive the sliding block (32) to reciprocate, the sliding block (32) has a first positioning state and a second positioning state in the movement process, when the sliding block (32) is in the first positioning state, the static contact piece (31) is separated from the movable contact piece (33), when the sliding block (32) is in the second positioning state, the static contact piece (31) is contacted with the movable contact piece (33), and a first driving spring (5) used for driving the sliding block (32) to switch between the first positioning state and the second positioning state under the action of the pull rod (42) is arranged in the shell (1).

2. A fire-fighting machinery emergency pump starting device as recited in claim 1, wherein: including setting up in drive groove (6) of slider (32) and being located drive block (7) in drive groove (6), drive mechanism (4) are including being used for guiding drive block (7) and moving in drive groove (6) and drive slider (32) and carry out the guide subassembly that slides, pull rod (42) are articulated with drive block (7).

3. A fire-fighting machinery emergency pump starting device as defined in claim 2, characterized in that: the guide assembly comprises a first connecting rod (43) located on one side of the sliding block (32), a second connecting rod (44) located on the other side of the sliding block (32) and a second stroke hole (45) formed in the second connecting rod (44), one end of the first connecting rod (43) is hinged to the transmission block (7), the other end of the first connecting rod is hinged to the shell (1), the second connecting rod (44) is rotatably connected with the shell (1), and the transmission block (7) is hinged to the second stroke hole (45) and is in sliding fit with the second stroke hole.

4. A fire-fighting machinery emergency pump starting device as defined in claim 3, characterized in that: the second connecting rod (44) is provided with a sliding plate (8) which reciprocates along the length direction of the second connecting rod (44), and the first driving spring (5) is sleeved on the second connecting rod (44) and drives the sliding plate (8) to move towards the transmission block (7).

5. A fire-fighting machinery emergency pump starting device as recited in claim 1, wherein: be equipped with on drive shaft (2) along drive shaft (2) rotation and along drive shaft (2) axial reciprocating motion's limiting plate (9), casing (1) is spacing face (10) corresponding to the one side of limiting plate (9), be formed with on spacing face (10) and supply limiting plate (9) pivoted to rotate interval (11), be equipped with on drive shaft (2) and drive limiting plate (9) and move towards spacing face (10) and rotate second driving spring (12) of interval (11) internal rotation in rotating, be equipped with in rotating interval (11) and be used for driving limiting plate (9) and back to protruding (13) of spacing face (10) motion in limiting plate (9) rotation process, form two between protruding (13) and rotating interval (11) and be located protruding (13) both sides and be used for positioning first locating area (14) and second locating area (15) of limiting plate (9), when the limiting plate (9) is located in the first positioning area (14), the sliding block (32) is in a first positioning state, and when the limiting plate (9) is located in the second positioning area (15), the sliding block (32) is in a second positioning state.

6. A fire-fighting machinery emergency pump starting device as defined in claim 5, characterized in that: the limiting plate (9) is provided with a guide inclined plane (16) which is matched with the protrusion (13) and used for guiding the limiting plate (9) to move back to the limiting surface (10).