CN2384209Y

CN2384209Y - Thermometer box cover and its lifter, and device for charging or discharging oxygen

Info

Publication number: CN2384209Y
Application number: CN 99233981
Authority: CN
Inventors: 彭剪桑
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-09-01
Filing date: 1999-09-01
Publication date: 2000-06-21
Anticipated expiration: 2009-09-01

Abstract

The utility model relates to a calorimeter box cover, a lifting device of the calorimeter box cover and an oxygen charging and air releasing device of an oxygen bomb, which relates to parts of a calorimeter and comprises an air inlet tee joint, a pressure reducing valve, a series type two-position three-way magnetic valve, a pneumatic two-position three-way valve, an air release cylinder, a lifting cylinder, a lifting rod, a box cover and an air nozzle sleeve with a quick steel ball clamp device fixed on the box cover. The oxygen bomb can be suspended on the air nozzle sleeve on the box cover, and the lifting cylinder can be individually controlled by three electromagnetic valves, automatic elevating of the box cover is realized by the pneumatic two-position three-way valve and the air release cylinder to charge oxygen and release air to the oxygen bomb. Degree of automation of an auto-calorimeter can be enhanced by the utility model.

Description

A kind of calorimeter case lid and lifting gear thereof and oxygen bomb oxygenation and means of deflation

The utility model relates to calorimetric parts.

Existing in micro-processor controlled auto-calorimeter, its automaticity still has many weak points, the for example opening and closing of case lid, oxygen bomb is inserted inner core, all still needs manual operations, be with special oxygen bomb oxygenate apparatus, by hand to oxygen bomb charged pressure oxygen, off-test will discharge the pressure gas in the oxygen bomb with special venting instrument.

The purpose of this utility model just provides a kind of calorimeter case lid and lifting gear and oxygen bomb oxygenation and means of deflation, to improve the automaticity of auto-calorimeter.

The utility model is realized its goal of the invention by the following technical solutions: will insert the air inlet threeway through the reduce pressure pressure oxygen of oxygen bomb oxygenation pressure (3MPa) of welding bottle reduction valve, one the tunnel through reduction valve secondary decompression (enter three serial connection type two-position three way magnetic valves after 0.8～1MPa), another road directly enters a spring reset Pneumatic two-position three-way valve air admission hole for general pneumatic element working pressure.Valve cover with quick steel ball clamp device is fixed on the case lid, the calorimeter oxygen bomb can be fastened in this valve fast and put, the single-acting venting cylinder of a band push rod is equipped with at valve cover top, and case lid is installed on the hollow elevating lever, and the elevating lever hole is built-in with the lifting cylinder of a long stroke.A solenoid valve may command promotes cylinder makes upstroke, rises automatically thereby promote elevating lever rising drive case lid, when solenoid valve turn-offs, relies on the case lid own wt to descend voluntarily; A solenoid valve, can make the Pneumatic two-position three-way valve events, make pressure oxygen enter valve cover on the case lid to the oxygen bomb oxygenation through the work pore of two position three-way valve, also make the piston reset of the venting cylinder at valve cover top simultaneously, when solenoid valve turn-offs, the Pneumatic two-position three-way valve is by spring reset, and Pneumatic two-position three-way valve work pore leads to atmosphere, and oxygen bomb then relies on the reverse checkvalve on himself to keep the interior high pressure of oxygen bomb; The venting cylinder piston at one solenoid valve may command valve cover top is descending, and its piston mandril is backed down the check valve core at oxygen bomb admission piece top, makes oxygen bomb inner high voltage gas feed atmosphere through Pneumatic two-position three-way valve work pore.Like this, the utility model has just been realized the case lid automatic lifting, and oxygen bomb is inserted inner core automatically, to many automatic functions such as oxygen bomb automatic oxygenation and automatic deflations, has improved the automaticity of auto-calorimeter.

Use the utility model, can improve test efficiency, make experiment work lighter.

The utility model accompanying drawing drawing is described as follows:

Fig. 1 is a front view of the present utility model;

Fig. 2 is the cut-open view of the utility model case lid.

The utility model is described in further detail below in conjunction with accompanying drawing.

The utility model comprises air inlet threeway 1, reduction valve 2, serial connection type two-position three way magnetic valve 3,4,5, inlet suction port 6, tensimeter 7, promote cylinder 8, valve body 9, spool 10, O-ring seal 11, end cap 12, spring 13, tracheae 14,15,16,17,18,19,20, elevating lever 21, lifting pole socket 22, flat key 23, support plate 24, revolving sleeve 25, axle sleeve 26, block 27, push rod 28, spring sheet-holder 29, coupling shaft 30, case lid arm 31, case lid bearing 32, case lid 33, cover plate 34, pressure gauge stand 35, tensimeter 36, last valve cover 37, therapeutic method to keep the adverse qi flowing downward muzzle 38, steel ball cutting ferrule 39, back-up ring 40, steel ball 41, sealing Figure 42, spring 43, venting cylinder 44, piston 45, push rod 46, tracheae 47, it is characterized in that, tracheae 15 is connected in reduction valve 2 inlet ends with air inlet threeway 1 one ends, tracheae 16 is connected in serial connection type two-position three way magnetic valve 3 with reduction valve 2 outlet sides, 4, on 5 the inlet suction port 6, tensimeter 7 also is loaded on the inlet suction port 6, tracheae 19 is connected two-position three way magnetic valve 5 with lifting cylinder 8 lower end pores, valve body 9, spool 10, sealing Figure 11, end cap 12 and spring 13 are formed a Pneumatic two-position three-way valve together, valve body 9 is rectangle, with solenoid valve 3,4,5 are anchored on together, an air admission hole is also shown and a work pore in the side, spool 10 is step axles, two O-ring seals 11 are housed on the spool, the diameter of axle between two O-ring seals is less than axle diameter, spool 10 is loaded in the hole of valve body 9, end cap 12 is equipped with at two ends, spring 13 is placed on the spool 10 little axles and places between spool 10 and the left end cap, make spool 10 other ends near right end cap, tracheae 14 is connected the air admission hole of valve body 9 with air inlet threeway 1 other end, tracheae 17 is connected right end cap on the valve body 9 with two-position three way magnetic valve 3, tracheae 18 is connected the work pore on the valve body 9 with last valve cover 37, tracheae 20 is connected two-position three way magnetic valve 4 with venting cylinder 44, elevating lever 21 is pipes, its external cylindrical surface one side is milled flat, sliding sleeve is in lifting pole socket 22 holes, press the flat horizontal surface of elevating lever 21 by being anchored on flat key 23 on the lifting pole socket 22, prevent that elevating lever 21 from rotating, support plate 24, revolving sleeve 25, axle sleeve 26 is anchored on elevating lever 21 upper ends by block 27 in the lump, promoting cylinder 8 is loaded in elevating lever 21 holes, screwed push rod 28 on the piston rod of cylinder 8, the spheric end crown of push rod 28 is in the taper counterbore of block 27, spring sheet-holder 29 is loaded on lifting pole socket 22 upsides, withstand on by spring force on the face of cylinder of elevating lever 21, coupling shaft 30 is anchored on the revolving sleeve 25, case lid 33 is cup-shaped, cover plate 34 seals case lid, case lid bearing 2 is anchored on the case lid 33, case lid arm 31 inserts in case lid bearing 32 grooves with its flat, penetrate also fastening by screw, case lid arm 31 also is enclosed within on the coupling shaft 30 and is fastening by screw, pressure gauge stand 35 is anchored on front end on the cover plate 34, and tensimeter 36 is loaded on the pressure gauge stand 35, and tracheae 47 links to each other pressure gauge stand 35 with last valve cover 37, last valve cover 37 is anchored on the cover plate 34, there is through hole at the center, and the lower end is and the measure-alike air nozzle hole of oxygen bomb admission piece, and O-ring seal 43 is equipped with in the end, therapeutic method to keep the adverse qi flowing downward muzzle 38 is tightened on the valve cover 37 by screw thread, on the therapeutic method to keep the adverse qi flowing downward muzzle 38 bottom air nozzle hole circumference several radial holes are arranged, two steel balls 41 are housed in each hole, interior steel ball can protrude from the air nozzle hole inside surface of therapeutic method to keep the adverse qi flowing downward muzzle 38, but can not pass through, outer steel ball is then put down in the external cylindrical surface of therapeutic method to keep the adverse qi flowing downward muzzle 38, and steel ball cutting ferrule 39 sliding sleeves are equipped with spring 43 between the two on therapeutic method to keep the adverse qi flowing downward muzzle 38, steel ball cutting ferrule 39 lower ends are the stepped hole of a step band gradient, under the effect of spring 43, its step angle is supported on the elastic spring 40 that is loaded on therapeutic method to keep the adverse qi flowing downward muzzle 38 ends, and venting cylinder 44 tightly is fixed in valve and overlaps 37 tops, the piston 45 that has O-ring seal is loaded in the piston hole of cylinder 44, push rod 46 is anchored on the piston 45, and valve overlaps in 37 center pits, until air nozzle hole in the insertion.

The utility model installation situation and the course of work are as follows: lifting pole socket 22 and air inlet threeway 1 are anchored on calorimeter cabinet end face, reduction valve 2, promote cylinder 8, serial connection type two-position three way magnetic valve 3,4,5 and valve body 9 are anchored on the crossbeam of calorimeter cabinet inside in the lump.Be connected with the welding bottle reduction valve with the draft tube joint of tracheae air inlet threeway 1, adjust reduction valve, make the reduction valve low-pressure meter be designated as oxygen bomb oxygenation rated pressure (being generally 3MPa), adjust reduction valve 2, make tensimeter 7 be designated as the service pressure (0.8～1MPa) of general pneumatic element.Connect solenoid valve 5, pressure oxygen enters and promotes cylinder 8, promote elevating lever 21, thereby driving case lid 33 rises, lift steel ball cutting ferrule 39, the calorimeter oxygen bomb is inserted valve cover 37 up and down with its admission piece, in 38 the air nozzle hole, loosen steel ball cutting ferrule 39, it is under the effect of spring 43, steel ball 41 is pushed in the oxygen bomb admission piece circular trough, thereby oxygen bomb is fixed thereon, cut off solenoid valve 5, at oxygen bomb, under the deadweight effect of case lid, case lid descends voluntarily and puts in place, connect solenoid valve 3, the spool 10 of Pneumatic two-position three-way valve moves to left, make pressure oxygen by tracheae 14 through valve body 9 air admission holes, the work pore that cavity between 10 liang of O-ring seals of spool enters on the valve body 9 overlaps 37 through tracheae 18 supreme valves, to the oxygen bomb oxygenation, the piston 45 of venting cylinder 44 is resetted, tensimeter 36 indication oxygen bomb oxygenation pressure, after oxygenation is enough, cut off solenoid valve 3, spool 10 resets under spring action, and tracheae 18 communicates with atmosphere through the left end cap hole by the work pore of valve body 9, after this, can begin the calorimetric test, after the off-test, connect solenoid valve 4, make the piston 45 of venting cylinder 44 descending, push rod 46 backs down the reverse checkvalve at oxygen bomb admission piece top, and oxygen bomb internal pressure gas enters atmosphere through tracheae 18, connects solenoid valve 5, case lid 33 rises, lift steel ball cutting ferrule 39, can take off oxygen bomb, prepare beginning test next time.When maintenance or other when needing, case lid can manually directly upwards be mentioned, and during a little higher than automatic rising of lifting height, spring sheet-holder 15 promptly can insert in the hole of elevating lever 21 lower ends automatically, makes elevating lever be fixed in a high position.Case lid also is supported on the revolving sleeve 25, can be around 26 revolutions of the axle sleeve on the elevating lever 21.

Claims

1. a calorimeter case lid and lifting gear and oxygen bomb oxygenation and means of deflation, comprise air inlet threeway (1), reduction valve (2), serial connection type two-position three way magnetic valve (3), (4), (5), inlet suction port (6), tensimeter (7), promote cylinder (8), valve body (9), spool (10), O-ring seal (11), end cap (12), spring (13), tracheae (14), (15), (16), (17), (18), (19), (20) elevating lever (21), lifting pole socket (22), flat key (23), support plate (24), revolving sleeve (25), axle sleeve (26), block (27), push rod (28), spring sheet-holder (29), coupling shaft (30), case lid arm (31), case lid bearing (32), case lid (33), cover plate (34), pressure gauge stand (35), tensimeter (36), last valve cover (37), therapeutic method to keep the adverse qi flowing downward muzzle (38), steel ball cutting ferrule (39), back-up ring (40), steel ball (41), O-ring seal (42), spring (43), venting cylinder (44), piston (45), push rod (46), tracheae (47), it is characterized in that, tracheae 15 is connected in reduction valve (2) inlet end with air inlet threeway (1) one end, tracheae 16 is connected in serial connection type two-position three way magnetic valve (3) with reduction valve (2) outlet side, (4), (5) on the inlet suction port (6), tensimeter (7) also is loaded on the inlet suction port (6), tracheae 19 is connected two-position three way magnetic valve (5) with lifting cylinder 8 lower end pores, valve body (9), spool (10), O-ring seal (11), end cap (12) and spring (13) are formed a Pneumatic two-position three-way valve together, valve body (9) is rectangle, and solenoid valve (3), (4), (5) be anchored on together, an air admission hole is also shown and a work pore in the side, spool (10) is a step axle, two O-ring seals (11) are housed on the spool, the diameter of axle between two O-ring seals is less than axle diameter, spool (10) is loaded in valve body (9) hole, end cap (12) is equipped with at two ends, spring (13) is placed on the little axle of spool (10) and places between spool (10) and the left end cap, make spool (10) other end near right end cap, tracheae (14) is connected the air admission hole of valve body (9) with air inlet threeway (1) other end, tracheae 17 is gone up right end cap with valve body (9) and is connected with two-position three way magnetic valve (3), tracheae (18) is gone up the work pore with valve body (9) and is connected with last valve cover (37), tracheae (20) is connected two-position three way magnetic valve (4) with venting cylinder (44), elevating lever (21) is a pipe, its external cylindrical surface one side is milled flat, sliding sleeve is in lifting pole socket (22) hole, press the flat horizontal surface of elevating lever (21) by being anchored on flat key (23) on the lifting pole socket (22), prevent that elevating lever 21 from rotating, support plate (24), revolving sleeve (25), axle sleeve (26) is anchored on the elevating lever upper end by block (27) in the lump, promoting cylinder (8) is loaded in elevating lever (21) hole, screwed push rod (28) on the piston rod of cylinder (8), the spheric end crown of push rod (28) is in the taper counterbore of block (27), spring sheet-holder (29) is loaded on lifting pole socket (22) upside, withstand on by spring force on the face of cylinder of elevating lever (21), coupling shaft (30) is anchored on the revolving sleeve (25), case lid (33) is cup-shaped, seal by cover plate (34), case lid bearing (32) is anchored on the case lid, case lid arm (31) inserts in case lid bearing (32) groove with its flat, penetrate also fastening by screw, it is last and fastening by screw that case lid arm (31) also is enclosed within coupling shaft (30), pressure gauge stand (35) is anchored on cover plate (34) and goes up front end, tensimeter (36) is loaded on the pressure gauge stand (35), tracheae (47) is connected pressure gauge stand (35) with last valve cover (37), last valve cover (37) is anchored on the cover plate (34), there is through hole at the center, the lower end is and the measure-alike air nozzle hole of oxygen bomb admission piece, and O-ring seal (43) is equipped with in the end, therapeutic method to keep the adverse qi flowing downward muzzle (38) is tightened on the valve cover (37) by screw thread, on the air nozzle hole circumference of therapeutic method to keep the adverse qi flowing downward muzzle (38) bottom several radial holes are arranged, two steel balls (41) are housed in each hole, interior steel ball can protrude from the air nozzle hole inside surface of therapeutic method to keep the adverse qi flowing downward muzzle (38), but can not pass through, outer steel ball is then put down in the external cylindrical surface of therapeutic method to keep the adverse qi flowing downward muzzle (38), steel ball cutting ferrule (39) sliding sleeve is on therapeutic method to keep the adverse qi flowing downward muzzle (38), be equipped with spring (43) between the two, steel ball cutting ferrule (39) lower end is the stepped hole of a step band gradient, under the effect of spring (43), its step angle is supported on the elastic spring (40) that is loaded on therapeutic method to keep the adverse qi flowing downward muzzle (38) end, venting cylinder (44) is anchored on valve cover (37) top, the piston (45) that has O-ring seal is loaded in the piston hole of cylinder (44), push rod (46) is anchored on the piston (45), insert in valve cover (37) center pit, until air nozzle hole.