CN203836235U - Furnace body - Google Patents

Abstract

The utility model discloses a furnace body. The furnace body is small in flow fluctuation, and the flowing section can be adaptively adjusted as the gas pressure in an air cylinder changes. The furnace body comprises a valve body (1) and a valve core assembly; the valve body (1) is provided with an air inlet hole (3) for connecting the air cylinder (2), and an air outlet hole (4) for connecting a furnace head; the valve core assembly is arranged between the air inlet hole (3) and the air outlet hole (4), comprising an air inlet unit, a balancing unit and a control unit which are axially arranged in sequence.

Description

A kind of body of heater

Technical field

The utility model relates to Portable furnace technical field, is specifically a kind of body of heater.

Background technique

Current body of heater comprises valve body and mangetic core assembly, valve body be provided with for connect the inlet hole of gas tank with for being connected the air outlet hole of burner, between inlet hole and air outlet hole, be provided with described mangetic core assembly, by mangetic core assembly switch and adjusting, control the flow of giving vent to anger, current mangetic core assembly generally adopts cone valve structure, be that taper valve core matches with taper pore, when withstanding taper pore, taper valve core closes, otherwise open, when opening, flow area can not change, need user to regulate taper valve core aperture to regulate flow area, yet gas tank is fuller when initial, pressure is higher, thereby make flow velocity very fast, like this, under constant flow area condition, initial flow is large, along with gas pressure in gas tank reduces, flow velocity slows down, flow reduces thereupon, changes in flow rate is larger, be that flowed fluctuation is large, flow area cannot self adaption regulate with gas pressure change in gas tank.

Model utility content

The technical problems to be solved in the utility model is, provides a kind of flowed fluctuation little, the body of heater that flow area can self adaption regulates with gas pressure change in gas tank.

The technical solution of the utility model is, the utility model body of heater, it comprises valve body and mangetic core assembly, valve body be provided with for connect the inlet hole of gas tank with for being connected the air outlet hole of burner, between inlet hole and air outlet hole, be provided with described mangetic core assembly, mangetic core assembly comprises air admission unit, balancing unit and the control unit sequentially arranging vertically; Air admission unit comprises valve core housing, spool, valve core housing is provided with the first elastic component, spool and valve core housing socket, between valve core outer surface and valve core housing internal surface, be provided with airspace, this airspace is communicated with valve core housing left end opening, air outlet hole respectively, the first elastic component left end and valve core housing endoporus annular table terrace offset, the first elastic component right-hand member and spool right-hand member annular table terrace offset, and spool left end offsets so that whether spool left end control valve core retainer plate left end opening is communicated with inlet hole with valve core housing left end opening is detachable; Balancing unit comprises cyclic spring pad, the first liner, the second liner, the first liner is connected with the second liner and cyclic spring pad is pressed abd fixed between the first liner and the second liner, the first liner left side and spool right side offset, cyclic spring pad left side towards cavity be communicated with described airspace; Control unit comprises gland nut, stop nut, the second elastic component, spheroid and controlling rod, gland nut is connected with valve body screw thread so that gland nut left end keeps to the side cyclic spring pad to be partly pressed abd fixed on the right side of the mangetic core assembly mounting hole on valve body, the second elastic component left end and the second liner right-hand member offset, at the bottom of the hole of the blind hole of the second elastic component right-hand member, spheroid, controlling rod, sequentially offset, controlling rod is connected with gland nut right-hand member internal thread, stop nut and controlling rod socket, and stop nut is connected with gland nut right-hand member outside thread.

Working principle of the present utility model is, in said structure, cyclic spring pad intermediate portion can axially be pushed, therefore, by a controlling rod left side, push away, make cyclic spring pad intermediate portion, the first liner, the second liner moves to left, then make spool move to left, spool moves to left and will spool left end and valve core housing left end opening is separated from each other, thereby valve core housing left end opening is communicated with suction port, gas is along suction port, left end opening, airspace, air outlet hole flows to burner, the power that acts on cyclic spring pad comprises that gas acts on the first axial force of cyclic spring pad left side, spool is subject to the elastic force of the first elastic component and axial force that gas acts on spool left side impose on the first liner and then act on cyclic spring pad the second axial force through spool right side, from the rightabout elastic force that only has the second elastic component to act on the second liner, like this, along with reduce (the causing flow velocity to reduce) of gas pressure in gas tank, the first axial force will reduce, spool moves to left so, mainly making valve core housing left end opening be communicated with cross section with suction port increases, by being communicated with cross section, increase to make up the impact that flow velocity reduces, thereby it is little to realize flowed fluctuation, flow area can be with gas pressure change in gas tank the object that regulates of self adaption, when separately user does not use, gaseous combustion is very large at the beginning, flame is very large, and diminish below obviously.

Adopt after said structure, the utility model compared with prior art, have the following advantages: due to the adjusting of cyclic spring pad, make spool aperture self adaption adjustable, gas flow fluctuation is little, the combustion performance obtaining within one period of long period when user is used is comparatively stable, greatly improves experience.

As improvement, spool left end is provided with the first seal ring matching with valve core housing left end opening; Between valve core housing right-hand member outer surface and mangetic core assembly mounting hole, be provided with the second seal ring; The right side of described mangetic core assembly mounting hole is provided with for the keep to the side annular protrusion of part sealing laminating of the cyclic spring pad with described, and like this, simple in structure, good airproof performance, avoids revealing.

As improvement, described cyclic spring pad keeps to the side and is provided with packing ring between part and gland nut, prevents that gland nut left end is pressed abd fixed on the cyclic spring pad part that keeps to the side in the process on the right side of the mangetic core assembly mounting hole on valve body, to twist keep to the side part and cause revealing of bad described cyclic spring pad.

Accompanying drawing explanation

Fig. 1 is the exploded perspective view of the utility model body of heater.

Fig. 2 is the sectional view after the utility model body of heater is connected with gas tank.

Fig. 3 is the A zoomed-in view of the utility model body of heater.

Shown in figure, 1, valve body, 2, gas tank, 3, inlet hole, 4, air outlet hole, 5, valve core housing, 6, spool, the 7, first elastic component, 8, airspace, 9, cyclic spring pad, the 10, first liner, the 11, second liner, 12, cavity, 13, gland nut, 14, stop nut, 15, the second elastic component, 16, spheroid, 17, controlling rod, 18, the first seal ring, the 19, second seal ring, 20, annular protrusion, 21, packing ring, 22, copper sheathing, 23, ring part, 24, annular boss, 25, exterior edge face, 26, interior edge face.

Embodiment

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

The utility model body of heater, it comprises valve body 1 and mangetic core assembly, valve body 1 be provided with for connect the inlet hole 3 of gas tank 2 with for being connected the air outlet hole 4 of burner, between inlet hole 3 and air outlet hole 4, be provided with described mangetic core assembly, mangetic core assembly comprises air admission unit, balancing unit and the control unit sequentially arranging vertically, air admission unit comprises valve core housing 5, spool 6, valve core housing 5 is provided with the first elastic component 7, spool 6 and valve core housing 5 sockets, between spool 6 outer surfaces and valve core housing 5 internal surfaces, be provided with airspace 8, this airspace 8 is communicated with valve core housing 5 left end openings, air outlet hole 4 respectively, the first elastic component 7 left ends and valve core housing 5 endoporus annular table terraces offset, the first elastic component 7 right-hand members and spool 6 right-hand member annular table terraces offset, and spool 6 left ends offset so that whether spool 6 left end control valve core retainer plate 5 left end openings are communicated with inlet hole 3 with valve core housing 5 left end openings are detachable, balancing unit comprises cyclic spring pad 9, the first liner 10, the second liner 11, the first liner 10 is connected with the second liner 11 and cyclic spring pad 9 has been pressed abd fixed between the first liner 10 and the second liner 11, the first liner 10 left sides and spool 6 right sides offset, offset place for cone match, cyclic spring pad 9 left sides towards cavity 12 be communicated with described airspace 8, the first liner 10 left sides are circumferentially with discrete fan-shaped projection, gap between adjacent fan-shaped projection respectively with airspace 8, cavity 12 is communicated with a part of usining as gas flow, like this, ventilate more smooth and easy, can do not stopped up by the first liner 10 left sides, control unit comprises gland nut 13, stop nut 14, the second elastic component 15, spheroid 16 and controlling rod 17, gland nut 13 is threaded with valve body 1 so that gland nut 13 left ends keep to the side cyclic spring pad 9 to be partly pressed abd fixed on the right side of the mangetic core assembly mounting hole on valve body 1, the second elastic component 15 left ends and the second liner 11 right-hand members offset, the second elastic component 15 right-hand members, spheroid 16, at the bottom of the hole of the blind hole of controlling rod 17, sequentially offset, it at the bottom of the hole of blind hole, is conical surface, spheroid 16 offsets to coordinate with conical surface and makes controlling rod 17 rotate more light and flexible, regulate highly sensitive, controlling rod 17 is connected with gland nut 13 right-hand member internal threads, stop nut 14 and controlling rod 17 sockets, and stop nut 14 is connected with gland nut 13 right-hand member outside threads.

Spool 6 left ends are provided with the first seal ring 18 matching with valve core housing 5 left end openings; Between valve core housing 5 right-hand member outer surfaces and mangetic core assembly mounting hole, be provided with the second seal ring 19; The right side of described mangetic core assembly mounting hole is provided with for the keep to the side annular protrusion 20 of part sealing laminating of the cyclic spring pad 9 with described.

Described cyclic spring pad 9 keeps to the side and is provided with packing ring 21 between part and gland nut 13

In inlet hole 3, be provided with copper sheathing 22, copper sheathing 22 is provided with internal thread, on valve body 1, around described copper sheathing 22, be provided with for supporting and locate the ring part 23 of gas tank 2, these ring part 23 end faces are cambered surface, inlet hole 3 is provided with the annular boss 24 coaxial with inlet hole 3 for connecting the bottom in the part hole of copper sheathing 22, and annular boss 24 is for the interior edge face 26 of spacing gas tank 2.

Because ring part 23 end faces are cambered surface, after gas tank 2 is connected with valve body 1, exterior edge face 25 and ring part 23 end faces of gas tank 2 are affixed, the exterior edge face 25 of gas tank 2 is line with ring part 23 end faces and contacts, owing to being line contact, so it is little that gas tank is tightened resistance, user-friendly, ring part 23 end face top layer wear area are little, simultaneously, annular boss 24 plays supplemental support spacing effect, make the tension that gas tank 2 cannot be stubborn, thereby wear and tear and become greatly even ring part 23 distortion with ring part 23 end faces in the exterior edge face 25 that prevents gas tank 2, and prevent in hole that the seal ring that the interior edge face 26 with gas tank 2 offsets is rotten by interior edge face 26 tops of gas tank 2

Copper sheathing 22 is threaded with inlet hole 3.

Cambered surface is arc surface; Annular boss 24 end faces are arc surface; Annular boss 24 can be continuous, can be also discrete; Ring part 23 has two-part, lays respectively at inlet hole 3 left and right sides, can be also three parts, determines according to need; After exterior edge face 25 is affixed with cambered surface, annular protrusion 7 is generally affixed with the interior edge face 26 of gas tank 2, can be also offset or leave certain gap, different and different according to the degree of tightening of gas tank 2, annular protrusion 7 Main Functions are spacing, prevent that gas tank 2 is excessively stubborn.

Adopt after this structure, the wearing and tearing between exterior edge face 25 and cambered surface significantly reduce, and gas tank 2 are installed and are also more saved worry, and can not worry to push up bad seal ring and cause potential safety hazard.

Claims (3)

1. a body of heater, it comprises valve body (1) and mangetic core assembly, valve body (1) be provided with inlet hole (3) for connecting gas tank (2) with for being connected the air outlet hole (4) of burner, between inlet hole (3) and air outlet hole (4), be provided with described mangetic core assembly, it is characterized in that, mangetic core assembly comprises air admission unit, balancing unit and the control unit sequentially arranging vertically, air admission unit comprises valve core housing (5), spool (6), valve core housing (5) is provided with the first elastic component (7), spool (6) and valve core housing (5) socket, between spool (6) outer surface and valve core housing (5) internal surface, be provided with airspace (8), this airspace (8) respectively with valve core housing (5) left end opening, air outlet hole (4) is communicated with, the first elastic component (7) left end and valve core housing (5) endoporus annular table terrace offset, the first elastic component (7) right-hand member and spool (6) right-hand member annular table terrace offset, spool (6) left end offsets so that whether spool (6) left end control valve core retainer plate (5) left end opening is communicated with inlet hole (3) with valve core housing (5) left end opening is detachable, balancing unit comprises cyclic spring pad (9), the first liner (10), the second liner (11), the first liner (10) is connected with the second liner (11) and cyclic spring pad (9) is pressed abd fixed between the first liner (10) and the second liner (11), the first liner (10) left side and spool (6) right side offset, cyclic spring pad (9) left side towards cavity (12) be communicated with described airspace (8), control unit comprises gland nut (13), stop nut (14), the second elastic component (15), spheroid (16) and controlling rod (17), gland nut (13) is threaded with valve body (1) so that gland nut (13) left end keeps to the side cyclic spring pad (9) to be partly pressed abd fixed on the right side of the mangetic core assembly mounting hole on valve body (1), the second elastic component (15) left end and the second liner (11) right-hand member offset, the second elastic component (15) right-hand member, spheroid (16), at the bottom of the hole of the blind hole of controlling rod (17), sequentially offset, controlling rod (17) is connected with gland nut (13) right-hand member internal thread, stop nut (14) and controlling rod (17) socket, and stop nut (14) is connected with gland nut (13) right-hand member outside thread.

2. body of heater according to claim 1, is characterized in that, spool (6) left end is provided with the first seal ring (18) matching with valve core housing (5) left end opening; Between valve core housing (5) right-hand member outer surface and mangetic core assembly mounting hole, be provided with the second seal ring (19); The right side of described mangetic core assembly mounting hole is provided with for the keep to the side annular protrusion (20) of part sealing laminating of the cyclic spring pad (9) with described.

3. body of heater according to claim 1, is characterized in that, described cyclic spring pad (9) keeps to the side and is provided with packing ring (21) between part and gland nut (13).