CN205155318U

CN205155318U - Mechanical time -delay device

Info

Publication number: CN205155318U
Application number: CN201520992596.8U
Authority: CN
Inventors: 汪映标; 徐洪勋; 侯志刚; 马剑峰; 陈达武
Original assignee: Vitalong Fire Safety Group Co Ltd
Current assignee: Vitalong Fire Safety Group Co Ltd
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2016-04-13
Anticipated expiration: 2025-12-04

Abstract

The utility model discloses a mechanical time -delay device, cam, lever, impact pole and guiding valve when actuating mechanism, dog, branch, accent, the guiding valve is connected with intake pipe and outlet duct respectively, actuating mechanism's drive end corresponds with the dog to be connected, the dog supports and leans on in its rotation of branch tip restriction, synchronous rotation as an organic whole is connected to branch cam when transferring, cup jointed the spring and be in compression state on strikeing the pole, it corresponds and cooperates and to lever one end formation moment under the spring action to strike pole one end and lever one end, it corresponds with the interior valve rod of guiding valve to strike the pole other end, cam surface when transferring is hugged closely to the lever other end under the effect of strikeing pole pair lever formation moment, the moment balance that the cam formed the lever other end when strikeing moment that pole pair lever one end formed and transferring. The utility model discloses a mechanical structure realizes the function that the time delay was opened, makes its influence that does not receive the electricity, move reliable and stable, simple structure moreover, low in manufacturing cost.

Description

A kind of mechanical delay device

Technical field

The utility model belongs to fire-protection equipment technical field, particularly a kind of mechanical delay device.

Background technique

At fire-fighting domain, gas extinguishing system application is very extensive, before startup suppression system, and usually need through time delay in 30 seconds.The acoustooptic alarm started, warning alarm bell can point out personnel to need to withdraw within 30 seconds, timely evacuation, and close the opening of protective area in time, especially the delayed startup of CO2 extinguishing system is particularly necessary, because reaching finite concentration when carbon dioxide, personnel can be made at once to occur anesthesia and suffocate, threaten personal safety.Now in actual applications, the delayer of general employing electric control, then easily be subject to the impact such as power supply, line fault, outside thunderbolt, electromagnetic interference, may occur can not start-up study device automatically, valve can not be opened, the promptness of impact fire extinguishing, delayer also may produce entanglement action in addition, causes the phenomenon of gas extinguishing system malfunction.

Model utility content

Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides one not powered impact, and stable and reliable operation and structure are simple, the mechanical delay device of low cost of manufacture.

The technological scheme of the utility model technology is achieved in that a kind of mechanical delay device, it is characterized in that: comprise starting mechanism, block, pole, timing cam, lever, impact bar and guiding valve, described guiding valve is connected with suction tude and steam outlet pipe respectively, control suction tude by valve rod in guiding valve to be communicated with steam outlet pipe or to disconnect, the drive end of described starting mechanism is corresponding with block to be connected, described block is resisted against strut ends and limits its rotation, described pole and timing cam connect as one synchronous axial system, described impact bar is socketed with spring and is in compressive state, described impact bar one end and lever one end corresponding matching also form moment to lever one end under the action of the spring, the described impact bar the other end is corresponding with the valve rod in guiding valve, the described lever the other end is close to timing cam face under impact bar forms the effect of moment to lever, the moment that described impact bar is formed lever one end and the equalising torque that timing cam is formed the lever the other end, when the low level of timing cam turns to lever end corresponding part, described timing cam and lever end depart from, described impact bar promotes the valve rod in guiding valve under the action of the spring, control suction tude to be communicated with steam outlet pipe.

Mechanical delay device described in the utility model, starting mechanism described in it comprises startup cylinder, push rod and actuating signal switch, described startup cylinder is communicated with suction tude by pipeline, the push rod of described startup cylinder is connected with block, and the movable signal of block is delivered to control cabinet by described actuating signal switch.

Mechanical delay device described in the utility model, pole described in it and timing cam are hinged on timing pedestal, described timing cam is provided with pointer, described timing pedestal is provided with dial.

Mechanical delay device described in the utility model, it is provided with lever in the be hit side of stick force square sense of rotation of described lever.

Mechanical delay device described in the utility model, the end that act on corresponding to lever of impact bar described in it is provided with actuating signal switch, and the movable signal of impact bar is delivered to control cabinet by described actuating signal switch.

Mechanical delay device described in the utility model, it is provided with locking bar and locking switch in the end that described impact bar is corresponding with guiding valve inner valve stem, the actuating signal of locking bar is delivered to control cabinet by described locking switch, and when normal working, the action of described locking bar to impact bar does not limit.

The utility model adopts mechanical structure to realize the function of delayed start-up, make its not powered impact, stable and reliable operation, and the time that accurately can change delay, application area is wider, more actual demand can be met, this apparatus structure is simple, based on revolving parts, facilitates the processing of machine tool, improve make efficiency, reduce manufacture cost.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Mark in figure: 1 is rack, plate based on 2,3 for starting cylinder, and 4 is push rod, 5 is fitting seat, and 6 is actuating signal switch, and 7 is block, and 8 is pole, 9 is timing cam, and 10 is pointer, and 11 is timing pedestal, and 12 is dial, 13 is lever, and 14 is lever, and 15 is actuating signal switch, and 16 is impact bar, 17 is spring, and 18 is locking switch, and 19 is locking bar, and 20 is guiding valve, 21 is steam outlet pipe, and 22 is suction tude, and 23 is air outlet adapter, and 24 is air input joint.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail.

In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model technology is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.

As shown in Figure 1, a kind of mechanical delay device, comprise the starting mechanism be arranged in rack 1, block 7, pole 8, timing cam 9, lever 14, impact bar 16 and guiding valve 20, described rack 1 internal fixtion has sole plate 2, described guiding valve 20 is connected with suction tude 22 and steam outlet pipe 21 respectively, control suction tude 22 by valve rod in guiding valve 20 to be communicated with steam outlet pipe 21 or to disconnect, described suction tude 22 and steam outlet pipe 21 are fixedly mounted on rack 1 respectively by air outlet adapter 23 and air input joint 24, the drive end of described starting mechanism is corresponding with block 7 to be connected, described block 7 is resisted against pole 8 end and limits its rotation, described block is slidably disposed on the fitting seat 5 that is fixedly installed on sole plate, described pole 8 connects as one synchronous axial system with timing cam 9, described pole 8 and timing cam 9 are hinged on timing pedestal 11, described timing cam 9 is provided with pointer 10, described timing pedestal 11 is provided with dial 12, when retard time need be adjusted, then can according to dial, change the position of timing cam, accurately can change the time of delay, described impact bar 16 is socketed with spring 17 and is in compressive state, described impact bar 16 one end and lever 14 one end corresponding matching also form moment to lever 14 one end under spring 17 acts on, described impact bar 16 end that act on corresponding to lever 14 is provided with actuating signal switch 15, the movable signal of impact bar 16 is delivered to control cabinet by described actuating signal switch 15, described impact bar 16 the other end is corresponding with the valve rod in guiding valve 20, described lever 14 the other end is close to timing cam 9 surface under impact bar 16 pairs of levers 14 form the effect of moment, the moment that described impact bar 16 pairs of lever 14 one end are formed and the equalising torque that timing cam 9 pairs of lever 14 the other ends are formed, when the low level of timing cam 9 turns to lever 14 corresponding part, end, described timing cam 9 departs from lever 14 end, described impact bar 16 promotes the valve rod in guiding valve 20 under spring 17 acts on, control suction tude 22 to be communicated with steam outlet pipe 21.

Wherein, described starting mechanism comprises startup cylinder 3, push rod 4 and actuating signal switch 6, described startup cylinder 3 is communicated with suction tude 22 by pipeline, and the push rod 4 of described startup cylinder 3 is connected with block 7, and the movable signal of block 7 is delivered to control cabinet by described actuating signal switch 6.

Damaging other equipment in order to prevent lever rotation excessive, being provided with lever 13, for limiting the slewing area of lever in the be hit side of bar 16 moment sense of rotation of described lever 14; The end that described impact bar 16 is corresponding with guiding valve 20 inner valve stem is provided with locking bar 19 and locking switch 18, the actuating signal of locking bar 19 is delivered to control cabinet by described locking switch 18, when normal working, the action of described locking bar 19 pairs of impact bars 16 does not limit, when not needing propellant to pass through guiding valve within the time postponed, then can manually-operable locking bar to specific position, the valve rod of guiding valve is promoted to stop impact bar action to the right, meanwhile, the information of locking bar action can be delivered to control room by locking switch.

Working principle of the present utility model is:

When time delay device is not opened, the moment that impact bar is formed lever one end and the equalising torque that timing cam is formed the lever the other end, timing cam high surface is close to by the bearing now on lever underpart.

After time delay device is opened, the propellant to other parts enters guiding valve and startup cylinder respectively by air input joint, and described guiding valve and startup cylinder can bear the pressure of 3MPa, makes its force applications scope comparatively wide, more can meet actual demand.Start the push rod of cylinder to left movement, promote block, simultaneously actuating signal switch by this signal transmission to control cabinet, block is removed, then pole is released, and rotation motion is done at the center around timing pedestal, because pole and timing cam connect as one, therefore timing cam synchronous axial system, relative movement is done along timing cam high surface in lever underpart; When the low level of timing cam turns to corresponding part, lever underpart, namely the time of delay is reached, described timing cam and lever end depart from, then lever is released, and then release impact bar, impact bar moves right rapidly under the action of the spring, actuating signal switch is by this signal transmission to control cabinet simultaneously, and impact bar promotes the valve rod of guiding valve, opens guiding valve, control suction tude to be communicated with steam outlet pipe, propellant is discharged by steam outlet pipe and air outlet adapter.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a mechanical delay device, it is characterized in that: comprise starting mechanism, block (7), pole (8), timing cam (9), lever (14), impact bar (16) and guiding valve (20), described guiding valve (20) is connected with suction tude (22) and steam outlet pipe (21) respectively, control suction tude (22) by the valve rod in guiding valve (20) be communicated with steam outlet pipe (21) or disconnect, the drive end of described starting mechanism is corresponding with block (7) to be connected, described block (7) is resisted against pole (8) end and limits its rotation, described pole (8) and timing cam (9) connect as one synchronous axial system, described impact bar (16) be socketed with spring (17) and be in compressive state, described impact bar (16) one end and lever (14) one end corresponding matching also form moment to lever (14) one end under spring (17) acts on, described impact bar (16) the other end is corresponding with the valve rod in guiding valve (20), described lever (14) the other end is close to timing cam (9) surface under impact bar (16) forms the effect of moment to lever (14), the moment that described impact bar (16) is formed lever (14) one end and the equalising torque that timing cam (9) is formed lever (14) the other end, when the low level of timing cam (9) turns to lever (14) corresponding part, end, described timing cam (9) and lever (14) end depart from, described impact bar (16) promotes the valve rod in guiding valve (20) under spring (17) effect, control suction tude (22) to be communicated with steam outlet pipe (21).

2. mechanical delay device according to claim 1, it is characterized in that: described starting mechanism comprises startup cylinder (3), push rod (4) and actuating signal switch (6), described startup cylinder (3) is communicated with suction tude (22) by pipeline, the push rod (4) of described startup cylinder (3) is connected with block (7), and the movable signal of block (7) is delivered to control cabinet by described actuating signal switch (6).

3. mechanical delay device according to claim 1, it is characterized in that: described pole (8) and timing cam (9) are hinged in timing pedestal (11), described timing cam (9) is provided with pointer (10), described timing pedestal (11) is provided with dial (12).

4. mechanical delay device according to claim 1, is characterized in that: the be hit side of bar (16) moment sense of rotation of described lever (14) is provided with lever (13).

5. mechanical delay device according to claim 1, it is characterized in that: described impact bar (16) end that act on corresponding to lever (14) is provided with actuating signal switch (15), and the movable signal of impact bar (16) is delivered to control cabinet by described actuating signal switch (15).

6. mechanical delay device as claimed in any of claims 1 to 5, it is characterized in that: be provided with locking bar (19) and locking switch (18) in the end that described impact bar (16) is corresponding with guiding valve (20) inner valve stem, the actuating signal of locking bar (19) is delivered to control cabinet by described locking switch (18), when normal working, the action of described locking bar (19) to impact bar (16) does not limit.