CN202755293U - Infrared heater for heating inspection well mouth pavement pitch - Google Patents

Abstract

The utility model provides an infrared heater for heating inspection well mouth pavement pitch and belongs to the field of municipal maintenance equipment. The infrared heater comprises a pair of machine frames and gas pipes fixed on one sides of the machine frames, wherein machine frame protective covers are fixed on the machine frames, a liquid gas storage tank seat and an electric control box are arranged in each machine frame protective cover, and a group of infrared radiation heating mechanisms are fixed on the side facing downwards of the machine frames. Gas inlet joints are arranged in the middle of the gas pipes, a group of gas outlet joints are arranged on the length direction of the gas pipes, and a mixed gas leading-out mechanism is connected on the gas outlet joints. The infrared heater is characterized in that a reignition mechanism is arranged on the machine frames, an inspection well mouth semi-circle recession cavity is arranged in the middle of the machine frames, and the mixed gas leading-out mechanism comprises a gas injection pipe, a gas inlet adjusting nut sleeve, a mixed gas jet head and a liquefied gas flow control device. The infrared heater has the advantages of guaranteeing safety, avoiding heating inspection well cover zones, guaranteeing heating effect and not wasting liquefied gas.

Description

Be used for the infrared element to the heating of catch pit port pavement asphalt

Technical field

The utility model belongs to municipal maintenance construction facility technology field, is specifically related to a kind of for the infrared element to the heating of catch pit port pavement asphalt

Background technology

In order to satisfy the plumbing requirement of town road, usually the supporting water supply and sewerage pipeline that is laid with below road, and the rational distance of whenever being separated by is provided with the inspection shaft that top and pavement-height reach unanimity, be mounted with inspection well cover at inspection shaft, play the effect of protecting of covering to inspection shaft by inspection well cover, ensure on the one hand the safety of pedestrian and vehicle etc., on the other hand for the maintenance of water-feeding ﹠ drainaging pipeline for example dredging sewer provide access.

As the industry's knowledge of the reason, because binding site remarkable fragility for other position of road of inspection shaft and asphalt roads, therefore after asphalt roads comes into operation a period of time, road surface around the inspection well cover is prone to and causes the damage phenomenon such as decentralized crackle, hole, hole, need in time to repair, otherwise can bring disaster to inspection shaft and even affect water supply and sewerage pipeline, and can affect the safety of pedestrian and/or vehicle.

The original repair mode to hole, aforesaid hole and decentralized crackle adopts oil to guarantee the repair free of charge benefit usually, oil is guaranteed the repair free of charge to mend to have and is made short work of and the strong point of economical with materials, but since be injected in hole hole and the crack the bubble bag can not and road asphalt between produce good in effect, thereby very easily occur shelling cause repair again frequent.If yet in order to improve for the desirable plane of the road surface around the catch pit port being opened in conjunction with effect between original pitch of the pitch of repairing and road, so undoubtedly can produce following technical problem: the one, long construction period and can affect traffic; The 2nd, maintenance load is large and operation intensity municipal maintenance work personnel are large; The 3rd, raw material throwing amount causes greatly and unavoidably waste.

Utilization help to make the softening heater of pitch that the pitch around the inspection well cover is heated and make former roadbed or claim that pavement asphalt is softening and use make repairing pitch with it reliable connection be the form of construction work that present industry is generally acknowledged, and in published Chinese patent literature, is no lack of the technical information about the flexible pavement heater, slightly with exemplify as: the ZL03264008.0(high-efficient microwave road surface heater), the ZL03264009.9(microwave bituminous pavement heater), the ZL200320117944.4(microwave bituminous pavement heater), the microwave roads urface heater that ZL200420046641.2(is safe and reliable), the ZL200420047053.0(microwave roads urface heater), the ZL200420071607.0(microwave roads urface heater) and ZL200520055873.9(steam type microwave roads urface heater), etc.

The logical fraud that the patented technology scheme that is not limited to exemplify above exists is pointed out by manual the 0002nd hurdle of " heating arrangements of asphalt pavement heater " that application for a patent for invention publication No. CN101718073A provides.In addition, convenient from integrally-built terse and operation, " asphalt pavement heater " that CN2856135Y recommends has certain advantage, specifically can be referring to the Instructions Page 2 final stage of this CN2856135Y.

But, do not it is found that below the above-mentioned patented technology scheme that comprises CN101718073Y and CN2856135Y also exists or be found and unsolved common problem: one, and be not suitable for the heating of the flexible pavement around the catch pit port, because being covered by inspection well cover, the catch pit port zone protects, and inspection well cover is to reveal naked and (should not have pitch to cover) that cover without pitch, again because heater only needs the asphalt heating around the catch pit port, yet when using above-mentioned patent scheme that flexible pavement is heated, often show together with inspection well cover and heat, so cause energy waste on the one hand, also exist on the other hand high temperature to undermine the anxiety of inspection well cover; They are two years old, safety is difficult to ensure, take CN2856135Y and CN101718073A as example, owing to when igniting, being needed to implement multi-point electronic ignition to a plurality of (the CN2856135Y signal has six) radiation heating machine by ignition, therefore usually the situation that exists or above radiation heating mechanism not lighted, so after fuel gas is introduced, can produce sound, even fail timely completing combustion because of the gas that enters and exactly like the surprising sound as the blast and follow serious potential safety hazard; They are three years old, above-mentioned all patents all do not disclose the concrete structure of gaseous mixture derivation mechanism, and the function of gaseous mixture derivation mechanism is that liquefied gas and outside air are formed rational mixing ratio supply infrared radiation heating arrangements, if therefore the structure of gaseous mixture derivation mechanism is lost rationally, so not only can affect the heating effect of infrared radiation heating arrangements, but also can cause waste and even affect safety.

In view of above-mentioned prior art, the applicant has done useful design, and technical scheme described below is based on producing under this prerequisite

Summary of the invention

Task of the present utility model be to provide a kind of help reasonably to avoid by inspection well cover cover the zone heating of the catch pit port that protects and only need the bituminous paving heating of catch pit port surrounding is used avoid causing energy waste and avoid undermining inspection well cover, be conducive to use owning the disposable area ignition of radiation heating mechanism ensure safety and have be convenient to ensure the heating effect of infrared radiation heating arrangements and use the liquefied gas that avoids waste for the infrared heater to the heating of catch pit port pavement asphalt.

Task of the present utility model is finished like this, a kind of for the infrared element to the heating of catch pit port pavement asphalt, comprise the identical pair of frame of structure opposite each other and that under the use state, link together, on this pair of frame, respectively be fixed with a frame guard shield with airborne, be provided with a liquefied gas fangs and an electric control box at each frame guard shield, this pair of frame towards under a side and from an end of the length direction of frame each is fixed with one group of infrared radiation heating arrangements with an arrangement mode that is close to the other end, the space between described frame guard shield and the described infrared radiation heating arrangements constitutes the chamber of soaring; Be fixed on a side and the Gas Pipe that be positioned at the described chamber of soaring of the length direction of each frame, consist of in the middle position of the length direction of Gas Pipe have one with the gas inlet joint of described electric control box control connection, and consist of the gas outlet joint that has one group of quantity to equate with the quantity of described infrared radiation heating arrangements with the interval state at the length direction of Gas Pipe, on each gas outlet joint, be connected with a gaseous mixture derivation mechanism by pipeline, the gaseous mixture derivation mechanism is positioned at the described chamber and be connected with described infrared radiation heating arrangements of soaring, it is characterized in that: be used for the regnition mechanism that to be lighted by the gaseous mixture that described gaseous mixture derivation mechanism causes the infrared radiation heating arrangements respectively being provided with one on the described pair of frame and below corresponding to described one group of infrared radiation heating arrangements, this regnition mechanism and described electric control box control connection, and each consists of in the middle position of the side that faces each other of pair of frame the catch pit port semicircle cavity of stepping down, described gaseous mixture derivation mechanism comprises air jet pipe, air inlet adjusting nut cover, gaseous mixture jet thrust and liquid gas flow amount control device, one end of air jet pipe has a nut sleeve matching thread district, a pair of air inlet port and a valve seat, nut sleeve matching thread district is formed on the outer wall of air jet pipe, a pair of air inlet port is between nut sleeve matching thread district and valve seat, this a pair of air inlet port corresponds to each other and communicates with the jet tube chamber of air jet pipe, valve seat is formed on the end face of a described end of air jet pipe, and the valve seat orifice of this valve seat communicates with described jet tube chamber, air inlet adjusting nut cover is nested with on air jet pipe, with described nut sleeve matching thread district threaded engagement, and the wall body at air inlet adjusting nut cover is provided with a locating hole, is furnished with a dog screw that is used for air inlet adjusting nut cover location at locating hole, when being enclosed within the described nut sleeve matching thread district towards the direction of described valve seat, the air inlet adjusting nut revolves when moving, the opening degree of described air inlet port reduces, and when being enclosed within the nut sleeve matching thread district towards the direction that deviates from valve seat, the air inlet adjusting nut revolves when moving, the opening degree of described air inlet port increases, one end of gaseous mixture jet thrust is connected to the other end of air jet pipe with the screw thread docked mode, and the other end of gaseous mixture jet thrust and described infrared radiation heating arrangements are matched, liquid gas flow amount control device and described valve seat are fixed, and be connected with described pipeline, the direction towards described gaseous mixture jet thrust increases and constitutes conical cavity described jet tube chamber gradually from described air inlet port.

In a specific embodiment of the present utility model, the two ends of the length direction of described pair of frame and towards on a side respectively be fixed with a launching cradle, described frame guard shield comprises top backplate and side guard board, the two ends of top backplate and a pair of launching cradle are fixed, make by launching cradle between top backplate and the described infrared radiation heating arrangements and constitute the described chamber of soaring, described liquefied gas fangs and electric control box are arranged on the backplate of top, side guard board and frame side is outward fixed, and the upper edge of side guard board is connected with the top backplate, be connected with for described infrared radiation heating arrangements being covered the anti-air curtain that protects in the lower edge of side guard board, described one group of gas outlet joint position on described Gas Pipe is towards described gaseous mixture derivation mechanism, and described pipeline is metal tube.

In another specific embodiment of the present utility model, on the outer wall at the two ends of the long side direction of a described side guard board side outward, respectively be fixed with one first castor base, be provided with one first universal wheel at each first castor base head lamp brush guard pivot, and on the outer wall of the pair of short edges direction of side guard board, respectively be fixed with one second castor base, be provided with one second universal wheel at each second castor base head lamp brush guard pivot, and on the outer wall corresponding to the pair of short edges direction of side guard board, respectively be provided with a frame splicing apparatus that is used for described pair of frame is fixedly connected with or removes connection, wherein: the side at the length direction of pair of frame respectively is fixed with a positive handrail, and respectively is fixed with a side handrail at the two ends of pair of frame.

In another specific embodiment of the present utility model, described frame splicing apparatus comprises lock crook plate, lock crook plate pivot and stop pin, the lock crook plate pivot is arranged on the outer wall of described short side direction of side guard board of described frame guard shield of one of them frame in the described pair of frame, stop pin is arranged on the outer wall of short side direction of side guard board of frame guard shield of another frame in the pair of frame, one end pivoting of lock crook plate is arranged on the lock crook plate pivot, and the other end constitute free end and with the stop pin hook.

In another specific embodiment of the present utility model, described liquid gas flow amount control device comprises the control valve valve body, needle, nozzle and needle pipe, the control valve valve body has a valve body holder, this valve body holder and described valve seat are fixed, the needle pipe is arranged in the control valve valve body with level, zone between the outer wall of the inwall of control valve valve body and needle pipe constitutes the control valve body cavity, sidepiece at the control valve valve body is extended with liquefied gas introducing interface, this liquefied gas is introduced interface and is communicated with described control valve body cavity, and be connected with described pipeline, one end of control valve valve body is extended with a needle connector, this needle connector has one and regulates screw, regulating screw communicates with described needle pipe, the other end of control valve valve body consists of a nozzle carrier, one end and the nozzle carrier screw thread of nozzle connect, and the other end probes in the described valve seat orifice, the nozzle chambers of nozzle be shaped as taper, the stub end of this taper communicates towards nozzle carrier and with the control valve body cavity, and little head end is towards described valve seat orifice, one end of needle is probeing into described nozzle chambers successively and is arriving at the position of the spout of nozzle chambers behind the needle tube chamber of regulating screw and needle pipe, the other end of needle consists of an adjustment screw, and this adjustment screw and described adjusting screw screw thread connect.

Also have in the specific embodiment of the present utility model, consisting of at the outer wall of described needle connector has the helmet screw thread, is equipped with one with thread fiting mode and is used for described adjustment screw is covered the helmet that protects on this helmet screw thread.

More of the present utility model and in specific embodiment, described infrared radiation heating arrangements comprises overhead guard, insulating board, deposit the gas frame, jet plate, net with heating function, the lining net, pressure network and holder screen frame, overhead guard respectively is fixed with a frame Connection Block towards the side in the described chamber of soaring and the two ends that are positioned at this side, frame Connection Block and described frame are fixed, consist of the holder screen frame location flanging that vertically downward bending is arranged around the overhead guard, be connected with described holder screen frame location flanging around the holder screen frame, pressure network is shelved on the holder screen frame, the lining net is stacked on the pressure network, it is online that net with heating function is stacked in lining, jet plate is stacked on the net with heating function, and on jet plate, consist of the side have from the thickness direction of jet plate with high density state and connect fumarole to opposite side, depositing the gas frame is stacked on the jet plate, this central region of depositing the gas frame constitutes deposits air cavity, insulating board is stacked in to be deposited on the gas frame, and described gaseous mixture derivation mechanism is connected with described overhead guard and communicates with the described air cavity of depositing.

In of the present utility model and then specific embodiment, on the flanging of described holder screen frame location, offer the flanging connecting hole with the interval state, be equipped with holder screen frame hold-down screw at each flanging connecting hole, offer holder screen frame connecting hole with the interval state around described holder screen frame and in the position corresponding to the flanging connecting hole, described holder screen frame hold-down screw passes holder screen frame connecting hole and is limited by the nut that limits that screws on holder screen frame hold-down screw; Described net with heating function is nickel wire net or tungsten silk screen, and the number of plies is the 5-12 layer.

Of the present utility model again more and in specific embodiment, described regnition mechanism comprises igniter holder fixed head, the igniter holder, ignitron, first high-pressure electronic igniter head and second high-pressure electronic igniter head, igniter holder fixed head is fixed on an end of described frame, the igniter holder is fixed on the igniter holder fixed head, one end of ignitron is fixed on the igniter holder, and by air entraining pipe and described electric control box control connection, the other end of ignitron is connected with the other end of described frame, the middle part of ignitron is corresponding to the below of described one group of infrared radiation heating arrangements, and the middle part of ignitron offers the ignitron fumarole with the interval state, first, second high-pressure electronic igniter head corresponds to each other, wherein: first high-pressure electronic igniter head is fixed on a side of igniter holder, first ignition electrode of this first high-pressure electronic igniter head is corresponding to a side of ignitron, and first high voltage connector of first high-pressure electronic igniter head is connected with the electric control box electrical control by circuit, second high-pressure electronic igniter head is fixed on the opposite side of igniter holder, second igniting of this second high-pressure electronic igniter head is for should be in the opposite side of ignitron, and second high voltage connector of second high-pressure electronic igniter head is connected with the electric control box electrical control by circuit equally, wherein: the first ignition electrode is electrically connected with the first high voltage connector, and the second ignition electrode is electrically connected with the second high voltage connector.

In again of the present utility model and then specific embodiment, be equipped with a fixed cover at the described other end of described ignitron, this fixed cover has a standing screw, and this standing screw is fixedly connected with the described other end of described frame.

The technical scheme that the utility model provides is owing to having configured regnition mechanism, after Gas Pipe is introduced liquefied gas one group of gaseous mixture derivation mechanism, to introduce one group of infrared radiation heating arrangements with the mixed fuel gas of air by one group of gaseous mixture derivation mechanism, therefore can the infrared radiation heating arrangements be disposable lights comprehensively with all when regnition mechanism lights a fire, not only can ensure safety, and the effect of can ensure road pavement pitch time heating; Because each consists of with the central region that faces each other of pair of frame the catch pit port semicircle chamber of stepping down is arranged, thereby can avoid the heating to the inspection well cover zone, but both energy conservation can avoid again inspection well cover to damage; The gaseous mixture derivation mechanism that provides is rational in infrastructure and can be the infrared radiation heating arrangements and provide with the liquefied gas of the desirable mixing ratio of outside air mixed effect and use the assurance heating effect, and can avoid because of the bad liquefied gas of wasting that burns.

Description of drawings

Fig. 1 is embodiment schematic diagram of the present utility model.

Fig. 2 is the three-dimensional assembling structure figure of gaseous mixture derivation mechanism shown in Figure 1.

Fig. 3 is the three-dimensional assembling structure figure of infrared radiation heating arrangements shown in Figure 1.

Fig. 4 is the sectional view of Fig. 1.

Fig. 5 is the structure chart of regnition mechanism shown in Figure 1.

Fig. 6 is the sectional view of Fig. 5.

Fig. 7 is application examples schematic diagram of the present utility model.

The specific embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the utility model scheme to the description of embodiment, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also Fig. 1, provided pair of frame 1, a side that faces each other of this pair of frame 1 is fixed together with erection method under the use state, particularly, one side side of the length direction of pair of frame 1 is fixed together in aspectant mode, because the structure of pair of frame 1 is identical, therefore following description is only for one of them.Frame 1 towards on a side the surface and be positioned at two ends and respectively be fixed with a shape just as the launching cradle 15 of portal frame shape, that is to say that launching cradle 15 has a pair of, certainly, the quantity of launching cradle 15 is not subject to a pair of restriction, can increase as required, for example increase to three, therefore can not limit the utility model scheme with the number change of launching cradle 15.With regard to the present embodiment, be fixed with a frame guard shield 11 at a pair of launching cradle 15, by frame guard shield 11 frame 1 is in the state of protecting that covers.

The main points of the technical scheme that provides as the utility model: respectively being arranged with in the middle position of the side that faces each other of pair of frame 1 and the length direction that is positioned at this side to consist of has the catch pit port semicircle cavity 14 of stepping down, two catch pit port semicircles that face each other are stepped down form after cavity 14 cooperates the circular cavity of an integral body, the inspection well cover that this circular cavity is used for being assigned on the catch pit port with known lid adapts, thereby the flexible pavement around catch pit port and the catch pit port is separated.So structure can be avoided the heating to inspection well cover to the asphalt heating around the catch pit port time, not only can energy conservation, and can avoid inspection well cover to damage because of hyperthermia radiation.

Aforesaid frame protecting cover 11 comprises top backplate 111 and side guard board 112, top backplate 111 is fixed on the aforesaid a pair of launching cradle 15, side guard board 112 is fixed with frame 1 side outward, and be welded to connect around the upper edge of side guard board 112 and the top backplate 111, and the lower edge of side guard board 112 is covered the side of frame 1 and is protected, be that side guard board 112 extends towards the direction of terrace, and be fixed with an anti-air curtain 1121 of preferably being filled the post of by exotic material such as glass fabric in the lower edge of side guard board 112.Shown in figure, be fixed with a liquefied gas fangs 12 at an end of top backplate 111, the other end then is equipped with an electric control box 13.On the outer wall at the two ends of the long side direction of side guard board 112 side outward, respectively be fixed with one first castor base 1122, be provided with one first universal wheel 11221 at each the first castor base 1122 head lamp brush guard pivot, and on the pair of short edges of side guard board 112 and be positioned at outer wall and respectively be fixed with one second castor base 1123, be provided with one second universal wheel 11231 at each the second castor base 1123 head lamp brush guard pivot, hence one can see that, has four universal wheels for one of them frame 1 in the pair of frame 1.

Namely be convenient to move for the ease of using, therefore the length direction in pair of frame 1 side outward respectively is provided with positive handrail 16a, and respectively is provided with a side handrail 16b at the two ends of pair of frame 1.

Figure 1 illustrates each of the two ends that are positioned at pair of frame 1 and be used for frame splicing apparatus 6 that pair of frame 1 is linked together under the use state, that is to say that frame splicing apparatus 6 has a pair of, each frame splicing apparatus 6 comprises lock crook plate 61, lock crook plate pivot 62 and stop pin 63, stop pin 63 is fixed on the outer wall of minor face of side guard board 112 of frame guard shield 11 of one of them frame 1 in the pair of frame 1, in the present embodiment stop pin 63 has been fixed on one of them second castor base 1123 of a pair of the second castor base 1123, lock crook plate pivot 62 is fixed on the outer wall of minor face of side guard board 112 of frame guard shield 11 of another frame 1 in the pair of frame 1, in the present embodiment lock crook plate pivot 62 has been fixed on another second castor base 1123 in a pair of the second castor base 1123, one end of lock crook plate 61 is arranged on the lock crook plate pivot 62 rotationally, and the other end of lock crook plate 62 formation has a lock crook plate recess 611, and this lock crook plate recess 611 hooks together and is buckled in shortly on the stop pin 63.

When the utility model transports the job site to, as long as pair of frame 1 is put together together by the side that state shown in Figure 1 namely will face each other, then the free end with lock crook plate 61 namely has an end of lock crook plate recess 611 towards the direction rotation of stop pin 63, until lock crook plate recess 611 cooperates with stop pin 63, thereby pair of frame 1 is assembled into an integral body, and vice versa.

On aforesaid pair of frame 1 and from an end to the other end of the length direction of frame 1, be fixed with one group of infrared radiation heating arrangements 4 with a connecting method that is close to separately, in the present embodiment, although in Fig. 1, illustrated the quantity of one group of infrared radiation heating arrangements 4 to have four, obviously quantity and limit the utility model whereby not.Because one group of infrared radiation heating arrangements 4 is positioned at the below of frame 1, says definitely the below corresponding to frame guard shield 11, so maintains the space between frame guard shield 11 and one group of infrared radiation heating arrangements 4, constitutes the chamber 113 of soaring by this space.As aforementioned, since the middle part of the length direction of the side that faces each other of pair of frame 1 and in the position to correspond to each other each consists of the catch pit port semicircle cavity 14 of stepping down is arranged, therefore in one group of infrared radiation heating arrangements 4, should satisfy and the catch pit port semicircle degree that cavity 14 adapts of stepping down according to general knowledge corresponding to the step down shape of infrared radiation heating arrangements 4 at cavity 14 positions of catch pit port semicircle, therefore, illustrated among the figure to be designed to circular-arc towards a step down end of cavity 14 of catch pit port semicircle two infrared radiation heating arrangements 4 in the middle of being positioned in one group of infrared radiation heating arrangements 4.

Be provided with a Gas Pipe 2 in the frame guard shield 11 on each frame 1, Gas Pipe 2 is namely fixed with long limit and side side guard board 112 that have the first castor base 1122 of frame 1 with a side of the length direction of frame 1, consisting of at the middle part of the length direction of Gas Pipe 2 has a gas inlet joint 21, gas inlet joint 21 is shown by air supply pipe 211(Fig. 7) with electric control box 13 control connections, and consist of with the interval state at the length direction of Gas Pipe 2 and to have that quantity equates with the quantity of aforesaid infrared radiation heating arrangements 4 and corresponding to one group of gas outlet joint 22 above the infrared radiation heating arrangements 4.Undoubtedly, each infrared radiation heating arrangements 4 is corresponding to a gas outlet joint 22.Pipeline 221 by gas outlet joint 22 on each gas outlet joint 22 is connected with a gaseous mixture derivation mechanism 3, for the ease of gas outlet joint 22 is connected with gaseous mixture derivation mechanism 3 easily, therefore when design with gas outlet joint 22 towards gaseous mixture derivation mechanism 3, gas inlet joint 21 then is positioned at Gas Pipe 2 towards a upper side.Preferably, pipeline 221 uses metal tube, but also can use non-metallic pipe.Each gaseous mixture derivation mechanism 3 is stretched over infrared radiation heating arrangements 4 and connects with infrared radiation heating arrangements 4, and shown in figure, the quantity of one group of gaseous mixture derivation mechanism 3 equates namely there are equally four with the quantity of one group of infrared radiation heating arrangements 4.

See also Fig. 2 and in conjunction with Fig. 1, one group of gaseous mixture derivation mechanism 3 respectively comprises air jet pipe 31, air inlet adjustment nut sleeve 32, gaseous mixture jet thrust 33 and liquid gas flow amount control device 34, one end of air jet pipe 31 namely has nut sleeve matching thread district 311 towards the end formation of aforesaid gas outlet joint 22, a pair of air inlet port 312 and valve seat 313, nut sleeve matching thread district 311 is formed on the outer wall of air jet pipe 31, a pair of air inlet port 312 is between nut sleeve matching thread district 311 and valve seat 313, and this a pair of air inlet port 312 keeps aspectant corresponding states each other, valve seat 313 is positioned at air jet pipe 31 on the end face of an end of gas outlet joint 22, central authorities at this valve seat 313 have a valve seat orifice 3131, this valve seat orifice 3131 communicates with the jet tube chamber 314 of air jet pipe 31, and is provided with one group of (Figure 2 shows that four) attachment screw hole 3132 at valve seat 313.Being nested with on air jet pipe 31 of air inlet adjustment nut sleeve 32, and wall is processed with internal thread 321 within it, this internal thread 321 and aforesaid nut sleeve matching thread district 311 threaded engagement.Because the function of a pair of air inlet port 312 is for introducing outside air,, outside air forms gaseous mixture by mixing with the liquefaction gas phase, therefore the keying degree of a pair of air inlet port 312 is that the size of open degree is taken on by air inlet adjustment nut sleeve 32, for example (take the location status of current icon as example): during with the 32 counterclockwise turn of air inlet adjustment nut sleeve, then towards the direction displacement of valve seat 313, thereby the degree of closure of 32 pairs of air inlet ports 312 of air inlet adjustment nut sleeve is increased, the inlet of outside air reduces, otherwise, when air inlet adjustment nut sleeve 32 turns clockwise, then towards the direction displacement away from valve seat 313, the opening degree of a pair of air inlet port 312 or title degree of exposure increase, and the inlet of outside air increases.Therefore can obtain the desirable mist of rational combustion efficiency to the reasonable adjusting of air inlet adjustment nut sleeve 32.Preferably, also can offer a locating hole 322 in air inlet adjustment nut sleeve 32, and set one piece of dog screw 3221 at locating hole 322, after air inlet adjustment nut sleeve 32 is adjusted to required degree by top description, screw dog screw 3221, so that air inlet adjustment nut sleeve 32 is limited.The screw thread of one end of gaseous mixture shower nozzle 33 and the other end of air jet pipe 31 connects, and the other end of gaseous mixture jet thrust connects an end of a connection pipeline section 331, the other end that connects pipeline section 331 has a connecting seat 3311, and Connection Block 3311 connects with top infrared radiation heating arrangements 4 that mentioned and that also will describe in detail below.Liquid gas flow amount control device 4 preferably but not the structure that definitely is limited to is as follows: comprise control valve valve body 341, needle 342, nozzle 343 and needle pipe 344, the middle part expansion of the length direction of control valve valve body 341 is provided with a valve body holder 3411, on this valve body holder 3411 and in the position corresponding to aforesaid attachment screw hole 3132, offer the through hole 34111 that one group of quantity equates with attachment screw hole 3132, screw in attachment screw hole 3132 and valve body holder 3411 and valve seat 313 is fixing by attachment screw 34112 via through holes 34111.Needle pipe 344 is arranged in the control valve valve body 341 with level, space between the outer wall of the inwall of control valve valve body 341 and needle pipe 344 is that the zone constitutes control valve body cavity 3412, that is to say that whole piece of needle pipe 344 is positioned at control valve body cavity 3412 with level.Sidepiece at control valve valve body 341 is extended with liquefied gas introducing interface 3413, this liquefied gas is introduced interface 3413 and is communicated with aforesaid control valve body cavity 3412, and be connected with aforesaid pipeline 221, introduce in the control valve body cavity 3412 by the liquefied gas that this liquefied gas introducing interface 3413 will come from pipeline 221.End at control valve valve body 341 is extended with a needle connector 3414, this needle connector 3414 has one and regulates screw 34141, this adjusting screw 34141 communicates with aforesaid needle pipe 344, the other end of control valve valve body 341 consists of a nozzle carrier 3415, and the inwall of this nozzle carrier 3415 consists of has nozzle to connect internal thread hole 34151.Consisting of on the outer wall of one end of nozzle 343 has nozzle to connect external screw thread 3432, this nozzle connects external screw thread 3432 and connects internal thread 34151 threaded engagement with nozzle, thereby nozzle 343 is fixing with nozzle carrier 3145, and the other end of nozzle 343 probes into or claims to insert in the aforesaid valve seat orifice 3131.By shown in Figure 2, the shape of the nozzle chambers 3431 of nozzle 343 constitutes the large and little conical cavity of the diameter of the other end of the diameter of an end, the stub end of this conical cavity is that the large end of diameter communicates towards nozzle carrier 3415 and with control valve body cavity 342, and the little head end end that to be diameter little is towards valve seat orifice 3131.One end of needle 342 probes in the aforesaid nozzle chambers 3431 after passing successively the needle tube chamber of regulating screw 34141 and needle pipe 344, and arrive at the position of the spout 34311 of nozzle chambers 3431, the other end of needle 342 consists of an adjustment screw 3421, and this adjustment screw 3421 connects with aforesaid adjusting screw 34141 screw threads.Preferably, at the outer wall of aforesaid needle connector 3414 helmet screw thread 34142 is set, sets one at this helmet screw thread 34142 and be used for adjustment screw 3421 is covered the helmet 345 that protects.By shown in Figure 2, the direction towards gaseous mixture jet thrust 33 increases and forms conical cavity aforesaid jet tube chamber 314 gradually from air inlet port 312, that is to say that the direction towards gaseous mixture jet thrust 33 increases gradually from air inlet 312 for the diameter of jet tube chamber 314.So shape extremely is conducive to promote the effect that gaseous mixture is carried to infrared radiation heating arrangements 4.

Be under the state of removal helmet 345 at whiz, criticize (screwdriver) with instrument such as sieve adjustment screw 3421 is regulated, thereby needle 342 is changed in the position at spout 34311 places of nozzle chambers 3431.Particularly, towards the direction displacement of spout 34311, the liquefied gas that then comes from spout 34311 is that the flow of combustion gas diminishes to needle 342, otherwise with example.

See also Fig. 3 and Fig. 4, provided in the figure one of them frame 1 that is arranged in pair of frame 1 the below and be four with the fixing one group of infrared radiation heating arrangements 4(the present embodiment of frame 1 all).According to general knowledge, because that frame 1 has is a pair of, so infrared radiation heating arrangements 4 has two groups, there are four owing to every group again, therefore have eight, also because the structure of each infrared radiation heating arrangements 4 is identical, so the applicant only is elaborated for one below.

Preferably but not the structure of the infrared radiation heating arrangements 4 that definitely is limited to is as follows: comprise overhead guard 41, insulating board 42, deposit gas frame 43, jet plate 44, net with heating function 45, lining net 46, pressure network 47 and holder screen frame 48, overhead guard 41 towards the surface of the side in the aforesaid chamber 113 of soaring and the two ends that are positioned at the surface of this side respectively be fixed with the L shaped frame Connection Block 411 that a shape of cross section is English alphabet, on each frame Connection Block 411, offer one group with the interval state and be fixedly connected with hole 4111, by being fixedly connected with hole 4111 and by means of hold-down screw frame Connection Block 411 and the corresponding both sides of the length direction of frame 1 being fixedly connected with (Fig. 1 shows), consist of the holder screen frame location flanging 412 that vertical downward bending is arranged around the overhead guard 41, and on the flanging 412 of holder screen frame location, offer flanging connecting hole 4121 with the interval state, be furnished with holder screen frame hold-down screw 41211 at each flanging connecting hole 4121, each asks screen frame hold-down screw 41211 also to be equipped with and limits nut 41212.Be connected with holder screen frame location flanging 412 around the holder screen frame 48, specifically: around holder screen frame 48 and in the position corresponding to flanging connecting hole 4121, offer the holder screen frame connecting hole 481 that quantity equates with the quantity of flanging connecting hole 412.The inboard that corresponds to overhead guard 41 when holder screen frame 48 namely corresponds to the interior rear flank that the holder screen frame is located flanging 412, inserted from flanging connecting hole 4121 and holder screen frame connecting hole 481 successively by aforesaid holder screen frame hold-down screw 41211, and limit with limiting nut 41212, thereby will ask screen frame 48 fixing with the holder screen frame location flanging 412 of overhead guard 41.Pressure network 47 is shelved on holder screen frame 48 towards a upper side, lining net 41 is stacked on the pressure network 47, net with heating function 45 is stacked on the lining net 46, this net with heating function 45 also can be described as the heat radiation net, it is to be made of the nickel wire that is preferably the 5-12 layer or tungsten filament mesh grid, jet plate 44 is shelved and is stacked in shortly on the net with heating function 45, and on this jet plate 44, with intensive morphosis the fumarole 441 that is through to opposite side from a side of the thickness direction of jet plate 44 is arranged, depositing gas frame 43 is stacked on the jet plate 44, this is deposited the central region of gas frame 43 or claims the interior zone of framework to constitute and deposits air cavity 431, insulating board 42 is stacked in to be deposited on the gas frame 43, the gaseous mixture jet thrust 33 of aforesaid gaseous mixture derivation mechanism 3 connects with the Connection Block resigning hole 413 on the overhead guard 41, more precisely, Connection Block 3311 on the connection pipeline section 331 of gaseous mixture jet thrust 33 connects with Connection Block resigning hole 413, and connection pipeline section 331 communicates with the aforesaid air cavity 431 of depositing after seeing through insulating board 42.

See also Fig. 5 and Fig. 6 and still in conjunction with Fig. 1, because the structure corresponding to a pair of regnition mechanism 5 of the below of each one group of infrared radiation heating arrangements 4 of pair of frame 1 is identical, so the applicant only is described in detail for one below.

Preferably but not the structure of the regnition mechanism 5 that definitely is limited to is as follows: comprise igniter holder fixed head 51, igniter holder 52, ignitron 53, first high-pressure electronic igniter head 54 and second high-pressure electronic igniter head 55, the global shape of igniter holder fixed head 51 is L shaped (Fig. 1 shows) of English alphabet, and fix with fixed head screw 511 and an end of frame 1, the illustrated igniter hold-down screw 521 of igniter holder 52 usefulness is fixing with igniter holder fixed head 51, one end of ignitron 53 is fixed on the igniter holder 52 and leans out igniter holder 52, and show by air entraining pipe 531(Fig. 7) and aforesaid electric control box 13 control connections, the other end of ignitron 53 is provided with a fixed cover 532, this fixed cover 532 has a standing screw 5321, standing screw 5321 is fixed with the other end of frame 1, the middle part of ignitron 53 is corresponding to the below of aforesaid one group of infrared radiation heating arrangements 4, and offers fumarole 533 with the interval state.First, second high-pressure electronic igniter head 54,55 are inserted on each igniter head fixing hole 522 of the both sides that are preset in igniter holder 52 with corresponding to each other, and each is fixing by igniter head hold-down screw 523 supportings that are provided on the igniter holder 522, wherein: first high-pressure electronic igniter head 54 is positioned at a side of igniter holder 52, first ignition electrode 541 of this first high-pressure electronic igniter head 54 is corresponding to a side of ignitron 53, and first high voltage connector 542 of first high-pressure electronic igniter head 54 is connected with electric control box 13 electrical controls by circuit, second high-pressure electronic igniter head 55 is fixed on the opposite side of igniter holder 52, second ignition electrode 551 of this second high-pressure electronic igniter head 55 is corresponding to the opposite side of ignitron 53, and second high voltage connector 552 of second high-pressure electronic igniter head 55 is connected with electric control box 13 electrical controls by circuit equally.According to general knowledge, the first ignition electrode 541 is electrically connected with the first high voltage connector 542, and the second ignition electrode 551 is electrically connected with the second high voltage connector 552.

In aforesaid electric control box 13 by the air entraining pipe electromagnetic valve that air supply pipe electromagnetic valve for control air supply pipe 211 is housed, is used for control air entraining pipe 531 be connected controlling the ignition switch that is connected with first, second line ball joint 542,552 circuit.The power supply of electric control box 13 preferably uses solar photovoltaic assembly, specifically: can configure solar photovoltaic electrification component at the top of frame guard shield 11 backplate 111.

See also Fig. 7 and in conjunction with Fig. 1 to Fig. 6, respectively be provided with a liquefied gas storage 7 on the liquefied gas fangs 12 of the top backplate 111 of the frame guard shield 11 of pair of frame 1, the combustion gas efferent duct of drawing on the reducing valve by liquefied gas storage 7 shows from the transitional pore 131(Fig. 1 on the electric control box 13) introduce in the electric control box 13 and with aforesaid air supply pipe electromagnetic valve and be connected with the air entraining pipe electromagnetic valve.

When the utility model is transported to the job site, by aforesaid frame splicing apparatus 6 pair of frame 1 is in amalgamation state together, namely be in state shown in Figure 1, and with the aforesaid catch pit port semicircle position of cavity 14 corresponding to the inspection well cover of job site of stepping down.By the operator corresponding operating button 132 on the electric control box 13 is operated, for example under the state that the valve on the liquefied gas storage 7 is opened, open first the air supply pipe electromagnetic valve that is used for control air supply pipe 211, liquefied gas is caused the gas inlet joint 21 of Gas Pipe 2 by air supply pipe 211, the intraluminal liquefied gas of Gas Pipe that enters into Gas Pipe 2 is introduced the liquid gas flow amount control device 34 of the gaseous mixture derivation mechanism of being illustrated by Fig. 2 through gas outlet joint 22 and pipeline 221, the control valve body cavity 3412 interior liquefied gas that enter into the control valve valve body 341 of liquid gas flow amount control device 34 spray into the valve seat orifice 3131 of valve seat 313 from the spout 34311 of the nozzle chambers 3431 of nozzle 343, coming from valve seat orifice 3131 liquefied gas mixes mutually with the outside air that comes from air inlet port 312 and forms gaseous mixture and enter the jet tube chamber 314 of air jet pipe 31, gaseous mixture in the jet tube chamber 314 through gaseous mixture jet thrust 33 and be connected pipeline section 331 spray into infrared radiation heating arrangements 4 deposit gas frame 43 deposit air cavity 431, enter and deposit interior fumarole 441 disperses of gaseous mixture on jet plate 44 of air cavity 431 to net with heating function 45.Because the ignitron 53 of regnition mechanism 5 is corresponding to the below of one group of infrared radiation heating arrangements 4, therefore above-mentioned give Gas Pipe 2 air feed in, by being opened, the operation of electric control box 13 is the gas supply electromagnetic valve of ignitron 53 air feed, air entraining pipe 531 is introduced ignitron 531 with liquefied gas, and the liquefied gas in the inlet point fire tube 531 is from 5331 ejections of ignitron fumarole.Thereby make first, second ignition electrode 541,551 send high tension spark, light out the liquefied gas of self-ignition fumarole 533 by the high-tension ignition switch is opened in the operation of electric control box 13 this moment.Under this state, the central region of whole ignitron 53 (zone with ignitron fumarole 533) namely forms a tediously long fire bundle or claims the fire band corresponding to the zone of one group of infrared radiation heating arrangements 4, is lighted by the gaseous mixture that this tediously long fire bundle will come from the fumarole 441 of jet plate 44.Cut-out point ignition circuit after regnition finishes.Under this state, softening by net with heating function 45 road pavement asphalt heatings, in order to repairing asphalt, can be referring to the manual 0025-0026 section of CN101718073A to this.

In sum, the technical scheme that the utility model provides has overcome the deficiency in the prior art, has finished the invention task, has embodied objectively the technique effect described in the superincumbent technique effect of the applicant hurdle

Claims (10)

1. A kind of for the infrared element to the heating of catch pit port pavement asphalt, comprise pair of frame (1) opposite each other and that structure that link together is identical under the use state, upward respectively be fixed with a frame guard shield (11) with airborne in this pair of frame (1), be provided with a liquefied gas fangs (12) and an electric control box (13) at each frame guard shield (11), this pair of frame (1) towards under a side and from an end of the length direction of frame (1) each is fixed with one group of infrared radiation heating arrangements (4) with an arrangement mode that is close to the other end, the space between described frame guard shield (11) and the described infrared radiation heating arrangements (4) constitutes the chamber of soaring (113); Be fixed on a side and the Gas Pipe (2) that be positioned at the described chamber of soaring (113) of the length direction of each frame (1), consist of in the middle position of the length direction of Gas Pipe (2) have one with the gas inlet joint (21) of described electric control box (13) control connection, and consist of the gas outlet joint (22) that has one group of quantity to equate with the quantity of described infrared radiation heating arrangements (4) with the interval state at the length direction of Gas Pipe (2), be connected with a gaseous mixture derivation mechanism (3) at each gas outlet joint (22) by pipeline (221), gaseous mixture derivation mechanism (3) is positioned at the described chamber of soaring (113) and is connected with described infrared radiation heating arrangements (4), it is characterized in that: upper and respectively be provided with one in the below corresponding to described one group of infrared radiation heating arrangements (4) and be used for and cause the regnition mechanism (5) that the gaseous mixture of infrared radiation heating arrangements (4) is lighted by described gaseous mixture derivation mechanism (3) in described pair of frame (1), this regnition mechanism (5) and described electric control box (13) control connection, and each consists of in the middle position of the side that faces each other of pair of frame (1) the catch pit port semicircle cavity (14) of stepping down, described gaseous mixture derivation mechanism (3) comprises air jet pipe (31), air inlet adjusting nut cover (32), gaseous mixture jet thrust (33) and liquid gas flow amount control device (34), one end of air jet pipe (31) has a nut sleeve matching thread district (311), a pair of air inlet port (312) and a valve seat (313), nut sleeve matching thread district (311) is formed on the outer wall of air jet pipe (31), a pair of air inlet port (312) is positioned between nut sleeve matching thread district (311) and the valve seat (313), this a pair of air inlet port (312) corresponds to each other and communicates with the jet tube chamber (314) of air jet pipe (31), valve seat (313) is formed on the end face of a described end of air jet pipe (31), and the valve seat orifice (3131) of this valve seat (313) communicates with described jet tube chamber (314), air inlet adjusting nut cover (32) is nested with on air jet pipe (31), with described nut sleeve matching thread district (311) threaded engagement, and the wall body at air inlet adjusting nut cover (32) is provided with a locating hole (322), is furnished with a dog screw (3221) that is used for air inlet adjusting nut cover (32) location at locating hole (322), revolve when moving towards the direction of described valve seat (313) when air inlet adjusting nut cover (32) is upper in described nut sleeve matching thread district (311), the opening degree of described air inlet port (312) reduces, and revolve when moving towards the direction that deviates from valve seat (313) when air inlet adjusting nut cover (32) is upper in nut sleeve matching thread district (311), the opening degree of described air inlet port (32) increases, one end of gaseous mixture jet thrust (33) is connected to the other end of air jet pipe (31) with the screw thread docked mode, and the other end of gaseous mixture jet thrust (33) and described infrared radiation heating arrangements (4) are matched, liquid gas flow amount control device (34) is fixing with described valve seat (313), and be connected with described pipeline (221), the direction towards described gaseous mixture jet thrust (33) increases and constitutes conical cavity described jet tube chamber (314) gradually from described air inlet port (312).

2. According to claim 1 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that respectively being fixed with a launching cradle (15) at the two ends of the length direction of described pair of frame (1) and towards a upper side, described frame guard shield (11) comprises top backplate (111) and side guard board (112), the two ends of top backplate (111) and a pair of launching cradle (15) are fixing, make by launching cradle (15) and to constitute the described chamber of soaring (113) between top backplate (111) and the described infrared radiation heating arrangements (4), described liquefied gas fangs (12) and electric control box (13) are arranged on the top backplate (111), side guard board (112) is fixed with frame (1) side outward, and the upper edge of side guard board (112) is connected with top backplate (111), be connected with for described infrared radiation heating arrangements (4) being covered the anti-air curtain (1121) that protects in the lower edge of side guard board (112), the position of described one group of gas outlet joint (22) on described Gas Pipe (2) is towards described gaseous mixture derivation mechanism (3), and described pipeline (221) is metal tube.

3. According to claim 2 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that on the outer wall at the two ends of the long side direction of described side guard board (a 112) side outward, respectively being fixed with one first castor base (1122), be provided with one first universal wheel (11221) at each the first castor base (1122) head lamp brush guard pivot, and on the outer wall of the pair of short edges direction of side guard board (112), respectively be fixed with one second castor base (1123), be provided with one second universal wheel (11231) at each the second castor base (1123) head lamp brush guard pivot, and on the outer wall corresponding to the pair of short edges direction of side guard board (112), respectively be provided with a frame splicing apparatus (6) that is used for described pair of frame (1) is fixedly connected with or removes connection, wherein: the side at the length direction of pair of frame (1) respectively is fixed with a positive handrail (16a), and respectively is fixed with a side handrail (16b) at the two ends of pair of frame (1).

4. According to claim 3 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that described frame splicing apparatus (6) comprises lock crook plate (61), lock crook plate pivot (62) and stop pin (63), lock crook plate pivot (62) is arranged on the outer wall of described short side direction of side guard board (112) of described frame guard shield (11) of one of them frame (1) in the described pair of frame (1), stop pin (63) is arranged on the outer wall of short side direction of side guard board (112) of frame guard shield (11) of another frame (1) in the pair of frame (1), one end pivoting of lock crook plate (61) is arranged on the lock crook plate pivot (62), and the other end constitute free end and with stop pin (63) hook.

5. According to claim 1 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that described liquid gas flow amount control device (34) comprises control valve valve body (341), needle (342), nozzle (343) and needle pipe (344), control valve valve body (341) has a valve body holder (3411), this valve body holder (3411) is fixing with described valve seat (313), needle pipe (344) is arranged in the control valve valve body (341) with level, zone between the outer wall of the inwall of control valve valve body (341) and needle pipe (344) constitutes control valve body cavity (3412), sidepiece at control valve valve body (341) is extended with liquefied gas introducing interface (3413), this liquefied gas is introduced interface (3413) and is communicated with described control valve body cavity (3412), and be connected with described pipeline (221), one end of control valve valve body (341) is extended with a needle connector (3414), this needle connector (3414) has one and regulates screw (34141), regulating screw (34141) communicates with described needle pipe (344), the other end of control valve valve body (341) consists of a nozzle carrier (3415), one end of nozzle (343) and nozzle carrier (3415) screw thread connect, and the other end probes in the described valve seat orifice (3131), the nozzle chambers (3431) of nozzle (343) be shaped as taper, the stub end of this taper communicates towards nozzle carrier (3415) and with control valve body cavity (3412), and little head end is towards described valve seat orifice (3131), one end of needle (342) is probeing into described nozzle chambers (3431) successively and is arriving at the position of the spout (34311) of nozzle chambers (3431) behind the needle tube chamber of regulating screw (34141) and needle pipe (344), the other end of needle (342) consists of an adjustment screw (3421), and this adjustment screw (3421) connects with described adjusting screw (34141) screw thread.

6. According to claim 5 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that in the outer wall formation of described needle connector (3414) helmet screw thread (34142) being arranged, upward be equipped with one with thread fiting mode at this helmet screw thread (34142) and be used for described adjustment screw (3421) is covered the helmet (345) that protects.

7. According to claim 2 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that described infrared radiation heating arrangements (4) comprises overhead guard (41), insulating board (42), deposit gas frame (43), jet plate (44), net with heating function (45), lining net (46), pressure network (47) and holder screen frame (48), overhead guard (41) respectively is fixed with a frame Connection Block (411) towards the side in the described chamber of soaring (113) and the two ends that are positioned at this side, frame Connection Block (411) is fixing with described frame (1), consist of the holder screen frame location flanging (412) that vertically downward bending is arranged around the overhead guard (41), be connected with described holder screen frame location flanging (412) around the holder screen frame (48), pressure network (47) is shelved on the holder screen frame (48), lining net (46) is stacked on the pressure network (47), net with heating function (45) is stacked on the lining net (46), jet plate (44) is stacked on the net with heating function (45), and consist of a side that has from the thickness direction of jet plate (44) with high density state and connect fumarole (441) to opposite side jet plate (44) is upper, depositing gas frame (43) is stacked on the jet plate (44), this central region of depositing gas frame (43) constitutes deposits air cavity (431), insulating board (42) is stacked in to be deposited on the gas frame (43), and described gaseous mixture derivation mechanism (3) is connected with described overhead guard (41) and deposits air cavity (431 communicate with described.

8. According to claim 7 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that upward offering flanging connecting hole (4121) with the interval state at described holder screen frame location flanging (412), be equipped with holder screen frame hold-down screw (41211) at each flanging connecting hole (4121), offer holder screen frame connecting hole (481) with the interval state around described holder screen frame (48) and in the position corresponding to flanging connecting hole (4121), described holder screen frame hold-down screw (41211) passes holder screen frame connecting hole (481) and is limited by the nut (41212) that limits that screws on holder screen frame hold-down screw (41211); Described net with heating function (45) is nickel wire net or tungsten silk screen, and the number of plies is the 5-12 layer.

9. According to claim 1 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that described regnition mechanism (5) comprises igniter holder fixed head (51), igniter holder (52), ignitron (53), first high-pressure electronic igniter head (54) and second high-pressure electronic igniter head (55), igniter holder fixed head (51) is fixed on an end of described frame (1), igniter holder (52) is fixed on the igniter holder fixed head (51), one end of ignitron (53) is fixed on the igniter holder (52), and by air entraining pipe (531) and described electric control box (13) control connection, the other end of ignitron (53) is connected with the other end of described frame (1), the middle part of ignitron (53) is corresponding to the below of described one group of infrared radiation heating arrangements (4), and the middle part of ignitron (53) offers ignitron fumarole (533) with the interval state, first, second high-pressure electronic igniter head (54,55) correspond to each other, wherein: first high-pressure electronic igniter head (54) is fixed on a side of igniter holder (52), first ignition electrode (541) of this first high-pressure electronic igniter head (54) is corresponding to a side of ignitron (53), and first high voltage connector (542) of first high-pressure electronic igniter head (54) is connected with electric control box (13) electrical control by circuit, second high-pressure electronic igniter head (55) is fixed on the opposite side of igniter holder (52), second ignition electrode (551) of this second high-pressure electronic igniter head (55) is corresponding to the opposite side of ignitron (53), and second high voltage connector (552) of second high-pressure electronic igniter head (55) is connected with electric control box (13) electrical control by circuit equally, wherein: the first ignition electrode (541) is electrically connected with the first high voltage connector (542), and the second ignition electrode (551) is electrically connected with the second high voltage connector (552).

10. According to claim 9 for the infrared element to the heating of catch pit port pavement asphalt, it is characterized in that being equipped with a fixed cover (532) at the described other end of described ignitron (53), this fixed cover (532) has a standing screw (5321), and this standing screw (5321) is fixedly connected with the described other end of described frame (1)

Images