阅读说明：本技术 一种消防机械紧急启动装置 (Emergency starting device for fire-fighting machinery ) 是由 刘洋 于 2021-03-11 设计创作，主要内容包括：本发明公开了一种消防机械紧急启动装置,包括U形固定座、推杆电闸、开关顶杆、轴和接触器,在推杆电闸的推杆外端装有推杆把手,另一端与连接管的一端相连,连接管的另一端连接有连接块的一端,连接块的另一端与轴的一端相连接,轴装在U形固定座上,在轴上可活动连接有多个顶杆支架,凸轮套在轴上,并装在顶杆支架内,开关顶杆的一端位于顶杆支架内,与凸轮相对应,在顶杆支架的另一端设有接触器,在开关顶杆靠近接触器的一端设有推块。本发明结构简单,安装方便,能够适用于不同型号的接触器,扩大了适用范围；顶杆支架与轴套的安装位置,可以根据接触器的安装位置进行调整,避免出现偏差,从而解决接触失灵,无法工作的现象。(The invention discloses an emergency starting device of fire-fighting machinery, which comprises a U-shaped fixed seat, a push rod electric brake, a switch ejector rod, a shaft and a contactor, wherein a push rod handle is arranged at the outer end of the push rod electric brake, the other end of the push rod is connected with one end of a connecting pipe, the other end of the connecting pipe is connected with one end of a connecting block, the other end of the connecting block is connected with one end of the shaft, the shaft is arranged on the U-shaped fixed seat, a plurality of ejector rod supports are movably connected onto the shaft, a cam is sleeved on the shaft and arranged in the ejector rod supports, one end of the switch ejector rod is positioned in the ejector rod supports and corresponds to the cam, the contactor is arranged at. The invention has simple structure and convenient installation, can be suitable for contactors of different models, and enlarges the application range; the installation position of ejector pin support and axle sleeve can be adjusted according to the installation position of contactor, avoids appearing the deviation to solve contact failure, the phenomenon of unable work.)

1. The utility model provides a fire-fighting machinery emergency starting device which characterized in that: comprises a U-shaped fixed seat (1), a push rod electric brake (2), a switch push rod (3), a shaft (4) and a contactor (5), wherein a push rod handle (6) is arranged at the outer end of a push rod of the push rod electric brake (2), the other end of the push rod is connected with one end of a connecting pipe (7), the other end of the connecting pipe (7) is connected with one end of a connecting block (8), the other end of the connecting block (8) is connected with one end of the shaft (4), the shaft (4) is arranged on the U-shaped fixed seat (1), a plurality of push rod supports (10) are movably connected on the shaft (4), a cam (11) is sleeved on the shaft (4) and arranged in the push rod supports (10), one end of the switch push rod (3) is positioned in the push rod supports (10) and corresponds to the cam (11), the contactor (5) is arranged at the other end of the push rod supports (10), and a push block (12) is arranged at one end of the switch push, the push rod handle (6) upwards pushes, drives the connecting block (8) through the connecting pipe (7), the connecting block (8) drives the shaft (4) to rotate clockwise, the shaft (4) drives the cam (11) to rotate, the cam (11) rotates and contacts with the switch ejector rod (3), the switch ejector rod (3) is ejected to a contact of the contactor (5), and the contactor (5) is powered on.

2. A fire-fighting machinery emergency starting device as defined in claim 1, characterized in that: a waist-shaped hole (9) is formed in a side plate of the U-shaped fixed seat (1), and the push rod handle (3) is arranged in a locking bolt (18) of the ejector rod support (10) through a shaft sleeve (17) and is locked through a nut.

3. A fire-fighting machinery emergency starting device as defined in claim 1, characterized in that: three ejector rod brackets (10) are movably connected to the shaft (4).

4. A fire-fighting machinery emergency starting device as defined in claim 1, characterized in that: the shaft (4) is arranged on the U-shaped fixed seat (1) through a sheath (13).

5. A fire-fighting machinery emergency starting device as defined in claim 1, characterized in that: the shaft (4) is provided with a nylon block (14), the inner wall of the U-shaped fixed seat (1) opposite to the nylon block (14) is provided with a first microswitch (15) and a second microswitch (16), the first microswitch (15) corresponds to the upper bulge of the nylon block (14), and the second microswitch (16) corresponds to the lower bulge of the nylon block (14).

6. A fire-fighting machinery emergency starting device as defined in claim 1, characterized in that: the length of the connecting pipe (7) is adjustable.

7. A fire-fighting machinery emergency starting device as recited in claim 6, wherein: the two ends of the connecting pipe (7) are provided with double-thread, one end of the connecting pipe is provided with positive thread, the other end of the connecting pipe is provided with negative thread, the push rod handle (6) and the connecting block (8) are both in threaded connection with the connecting pipe (7) through fisheye bearings and are locked through nuts.

Technical Field

The invention belongs to the technical field of fire fighting equipment, and particularly relates to an emergency starting device of fire fighting machinery.

Background

According to the technical specification of fire-fighting water supply and fire hydrant system GB50974-2014 11.0.12 (a fire-fighting water pump control cabinet is provided with a manual mechanical starting pump for supplying energy, and a person with management authority is ensured to start a fire pump in emergency when a control circuit in the control cabinet fails, and the fire pump works normally within 5min when the fire pump is operated manually.)

The fire-fighting cabinet control box is mainly used for installing electrical elements such as relays, control switches and the like. The fire control box is suitable for controlling fire pumps of industrial mines, enterprises, schools and public buildings, can be automatically controlled and can also be manually operated.

The existing electric brake switch ejector rod is only suitable for a contactor with front contact, has a small practical range and has strong limitation.

Disclosure of Invention

The invention aims to provide an electric brake for a fire-fighting cabinet, which has a simple structure and is convenient to install, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a fire-fighting machinery emergency starting device comprises a U-shaped fixed seat, a push rod electric brake, a switch ejector rod, a shaft and a contactor, wherein a push rod handle is arranged at the outer end of a push rod of the push rod electric brake, the other end of the push rod is connected with one end of a connecting pipe, the other end of the connecting pipe is connected with one end of a connecting block, the other end of the connecting block is connected with one end of the shaft, the shaft is arranged on the U-shaped fixed seat, a plurality of ejector rod supports are movably connected onto the shaft, a cam is sleeved on the shaft and arranged in the ejector rod supports, one end of the switch ejector rod is positioned in the ejector rod supports and corresponds to the cam, the other end of the ejector rod support is provided with the contactor, one end of the switch ejector rod close to the contactor is provided with a push block, the push rod handle is pushed upwards to drive, the cam rotates to be in contact with the switch ejector rod, the switch ejector rod is ejected to a contact of the contactor, and the contactor is electrified.

The invention is further improved in that: the utility model discloses a push rod handle, including U-shaped fixing base, push rod handle, ejector pin support, nut locking, the mounted position of ejector pin support and axle sleeve, the curb plate of U-shaped fixing base is gone up to open there is waist type hole, the push rod handle passes through the axle sleeve and establishes in ejector pin support's locking bolt to through nut locking, the mounted position of ejector pin support and axle sleeve can be adjusted according to the mounted position of contactor, avoids appearing the deviation, thereby solves the contact failure.

The invention is further improved in that: a plurality of ejector rod brackets are movably connected to the shaft.

The invention is further improved in that: the shaft is arranged on the U-shaped fixed seat through the sheath, the sheath can prevent the shaft from rubbing against the fixed seat to cause abrasion, and meanwhile, the position of the shaft can be limited.

The invention is further improved in that: the mechanical switch is characterized in that a nylon block is arranged on the shaft, a first microswitch and a second microswitch are arranged on the inner wall of a U-shaped fixed seat opposite to the nylon block, the first microswitch corresponds to an upper bulge of the nylon block, the second microswitch corresponds to a lower bulge of the nylon block, two groups of normally closed signals are connected in series and are connected in series with a secondary control loop in the control cabinet, and the phenomenon that elements in the electrical cabinet are short-circuited after secondary control is misoperation in the state that the control cabinet is mechanically started is avoided.

The invention is further improved in that: the length of the connecting pipe is adjustable so as to adjust the distance between the switch ejector rod and the contactor.

The invention is further improved in that: the two ends of the connecting pipe are provided with double-thread threads, one end of the connecting pipe is provided with positive threads, the other end of the connecting pipe is provided with negative threads, the push rod handle and the connecting block are both in threaded connection with the connecting pipe through the fisheye bearing and are locked through the nut, and the length of the connecting pipe is adjusted through the double-eye bearing and the double-thread threads.

The invention has the technical effects and advantages that:

the structure is simple, the installation is convenient, the contactor can be suitable for contactors of different models, and the application range is expanded; the installation positions of the ejector rod bracket and the shaft sleeve can be adjusted according to the installation position of the contactor, so that deviation is avoided, and the problems of contact failure and incapability of working are solved; the shaft is arranged on the U-shaped fixed seat through the sheath, and the sheath can prevent the shaft and the fixed seat from generating friction to cause abrasion and can limit the position of the shaft; the push rod handle and the connecting block are both in threaded connection with the connecting pipe through the fisheye bearing and are locked through the nut, and the length of the connecting pipe is adjusted through the double-eye bearing and the double-end thread.

Drawings

FIGS. 1-2 are schematic structural views of the present invention;

in the figure: the device comprises a U-shaped fixing seat, a push rod switch, a switch push rod, a shaft 4, a contactor 5, a push rod handle 6, a connecting pipe 7, a connecting block 8, a kidney-shaped hole 9, a push rod support 10, a cam 11, a push block 12, a sheath 13, a nylon block 14, a first microswitch 15, a second microswitch 16, a shaft sleeve 17 and a locking bolt 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1-2 show a specific embodiment of an emergency starting device of a fire-fighting machine: the device comprises a U-shaped fixed seat 1, a push rod electric brake 2, a switch push rod 3, a shaft 4 and a contactor 5, wherein a push rod handle 6 is arranged at the outer end of a push rod of the push rod electric brake 2, the other end of the push rod is connected with one end of a connecting pipe 7, the other end of the connecting pipe 7 is connected with one end of a connecting block 8, the other end of the connecting block 8 is connected with one end of the shaft 4, the shaft 4 is arranged on the U-shaped fixed seat 1, three push rod supports 10 are movably connected on the shaft 4, a cam 11 is sleeved on the shaft 4 and arranged in the push rod supports 10, one end of the switch push rod 3 is positioned in the push rod supports 10 and corresponds to the cam 11, the contactor 5 is arranged at the other end of the push rod supports 10, a push block 12 is arranged at one end of the switch push rod 3 close to the contactor 5, the push rod handle 6 is, the shaft 4 drives the cam 11 to rotate, the cam 11 rotates to be in contact with the switch ejector rod 3, the switch ejector rod 3 is pushed to a contact of the contactor 5, and the contactor 5 is electrified;

a waist-shaped hole 9 is formed in a side plate of the U-shaped fixed seat 1, the push rod handle 3 is arranged in a locking bolt 18 of the ejector rod support 10 through a shaft sleeve 17 and is locked through a nut, and the installation positions of the ejector rod support 10 and the shaft sleeve 17 can be adjusted according to the installation position of the contactor 5, so that the deviation is avoided, and the phenomena of contact failure and incapability of working are solved;

the shaft 4 is arranged on the U-shaped fixed seat 1 through the sheath 13, and the sheath 13 can prevent the shaft 4 and the fixed seat 1 from generating friction to cause abrasion and can limit the position of the shaft 4.

The shaft 4 is provided with a nylon block 14, the inner wall of the U-shaped fixed seat 1 opposite to the nylon block 14 is provided with a first microswitch 15 and a second microswitch 16, the first microswitch 15 corresponds to the upper bulge of the nylon block 14, the second microswitch 16 corresponds to the lower bulge of the nylon block 14, two groups of normally closed signals are connected in series and are connected in series with a secondary control loop in a control cabinet, and in order to avoid the phenomenon that the elements in the electrical cabinet are short-circuited after the secondary control is in a misoperation state when the control cabinet is in a mechanical starting state.

Two ends of the connecting pipe 7 are provided with double-thread threads, a positive thread and a negative thread, the push rod handle 6 and the connecting block 8 are in threaded connection with the connecting pipe 7 through the fisheye bearing and are locked through nuts, and the length of the connecting pipe 7 is adjusted through the double-eye bearing and the double-thread threads.

The invention has simple structure and convenient installation, can be suitable for contactors of different models, enlarges the application range, can adjust the position relative to the contactor, and avoids the phenomenon that the contactor fails to work; the installation positions of the ejector rod bracket and the shaft sleeve can be adjusted according to the installation position of the contactor, so that deviation is avoided, and the problems of contact failure and incapability of working are solved; the shaft is arranged on the U-shaped fixed seat through the sheath, and the sheath can prevent the shaft and the fixed seat from generating friction to cause abrasion and can limit the position of the shaft; the push rod handle and the connecting block are both in threaded connection with the connecting pipe through the fisheye bearing and are locked through the nut, and the length of the connecting pipe is adjusted through the double-eye bearing and the double-end thread.

The applicant further states that the present invention is described in the above embodiments to explain the implementation method and device structure of the present invention, but the present invention is not limited to the above embodiments, i.e. it is not meant to imply that the present invention must rely on the above methods and structures to implement the present invention. It should be understood by those skilled in the art that any modifications to the present invention, the implementation of alternative equivalent substitutions and additions of steps, the selection of specific modes, etc., are within the scope and disclosure of the present invention.

The present invention is not limited to the above embodiments, and all the ways of achieving the objects of the present invention by using the structure and the method similar to the present invention are within the protection scope of the present invention.