CN219828891U - Ignition head and fire folder - Google Patents

Abstract

The utility model discloses an ignition head and a flame holder, wherein the ignition head comprises: the heat insulation piece is provided with a first air hole, and the first air hole is used for communicating with the air passage of the body; the heating element is arranged on and exposed out of the heat insulation element; one end of the conductive piece is electrically connected with the heating piece, and the other end of the conductive piece is electrically connected with the body; the connecting piece is directly or indirectly connected with the heat insulation piece and is used for being detachably connected with the body. According to the ignition head, when the ignition head is damaged, only the ignition head is required to be replaced, the body is not required to be discarded, and the utilization efficiency of the flame holder is improved.

Description

Ignition head and fire folder

Technical Field

The utility model relates to the technical field of ignition devices, in particular to an ignition head and a flame holder.

Background

The flame holder generally includes a main body and an ignition head for igniting inflammables, the ignition head is provided at one end of the main body, and the ignition head heats after being electrified, so that the ignition head can ignite inflammables.

However, the related fire turners are usually integrally arranged, and when the ignition head of the fire turner is damaged, the whole fire turner can only be discarded, and the fire turner cannot be maintained, so that waste is caused.

Disclosure of Invention

The utility model mainly aims to provide an ignition head, which aims to improve the adaptability of the ignition head and the use convenience of a user.

In order to achieve the above object, the present utility model provides an ignition head comprising:

the heat insulation piece is provided with a first air hole, and the first air hole is used for communicating with the air passage of the body;

the heating element is arranged on and exposed out of the heat insulation element;

one end of the conductive piece is electrically connected with the heating piece, and the other end of the conductive piece is electrically connected with the body;

the connecting piece is directly or indirectly connected with the heat insulation piece and is used for being detachably connected with the body.

Optionally, an installation groove is formed at one end of the heat insulating piece, and the heating piece is accommodated in the installation groove; or, a mounting groove is formed at one end of the heat insulating piece, a mounting flange is formed on the groove wall of the mounting groove, and the heating piece is accommodated in the mounting groove and is lapped on the mounting flange, so that a heating interval is formed between the heating piece and the groove bottom of the mounting groove; and/or the number of the groups of groups,

the heating element is a heating wire which is wound around a disc shape, and two end parts of the heating wire are arranged at intervals; and/or the number of the groups of groups,

the heating element is elastic, two ends of the heating element are respectively used for connecting an anode and a cathode of a power supply, and two ends of the heating element are clamped on the heat insulation element.

Optionally, the conductive member includes a first conductive column and a second conductive column, and a first plug hole and a second plug hole are formed in the heat insulating member;

one end of the first conductive column penetrates through the first inserting hole and is connected with one end of the heating element, and the other end of the first conductive column is exposed out of the heat insulating element;

one end of the second conductive column penetrates through the second plug hole and is connected with the other end of the heating element, and the other end of the second conductive column is exposed out of the heat insulating element.

Optionally, an installation groove is formed at one end of the heat insulating piece, and the heating piece is accommodated in the installation groove;

one end of the first plug hole and one end of the second plug hole are communicated with the mounting groove;

a first avoiding groove is formed on the groove wall of the mounting groove at a position corresponding to the first plug hole so as to mount one end part of the heating element;

a second avoidance groove is formed on the groove wall of the mounting groove at a position corresponding to the second plug hole so as to mount the other end part of the heating element.

Optionally, the ignition head further comprises a fastener, the fastener is connected with the heat insulation member, and the connecting member is arranged on the fastener.

Optionally, the fastener is connected with one end of the heat insulating piece opposite to the heating piece; and/or the number of the groups of groups,

the heat insulation piece comprises a heat insulation piece and is characterized in that the heat insulation piece comprises a first heat insulation piece and a second heat insulation piece; a first connecting hole is formed in the fastener corresponding to the first inserting hole, and a second connecting hole is formed in the fastener corresponding to the second inserting hole; the first conductive column is inserted into the first connecting hole and the first inserting hole to connect the heat insulating piece and the fastening piece; the second conductive column is inserted into the second connecting hole and the second inserting hole to connect the heat insulating piece and the fastening piece; and/or the number of the groups of groups,

the fastener is provided with a mounting hole, and the connecting piece is arranged in the mounting hole and exposed out of the fastener; and/or the number of the groups of groups,

the connecting piece is a magnetic connecting piece; and/or the number of the groups of groups,

the fastener has a second air hole in communication with the first air hole.

Optionally, the ignition head further comprises a connecting sleeve, wherein the connecting sleeve is provided with a mounting cavity, and a first cavity opening and a second cavity opening which are communicated with the mounting cavity;

the heat insulation piece and the connecting piece are accommodated in the installation cavity, the heating piece is exposed through the first cavity opening, and the connecting piece is exposed through the second cavity opening.

Optionally, a first limit flange is arranged on the inner side wall of the installation cavity and adjacent to the first cavity opening, and the first limit flange is used for preventing the heat insulation piece from moving towards the first cavity opening when being abutted with the end part of the heat insulation piece; and/or the number of the groups of groups,

a second limit flange is arranged on the outer side wall of the connecting sleeve adjacent to the first cavity opening, and the end part of the connecting sleeve with the second cavity opening is used for being spliced with the body; the second limit flange is used for preventing the connecting sleeve from moving towards the body when being abutted with the body.

Optionally, the ignition head further comprises a fastener, the fastener is connected with the heat insulation member, and the connecting member is arranged on the fastener;

the radial dimension of the fastener is larger than that of the heat insulating piece, and the fastener is tightly matched with the mounting cavity.

In order to achieve the above object, the present utility model also proposes a fire clasp comprising:

the body comprises a main control circuit and an air flow sensor electrically connected with the main control circuit, the body is provided with an air passage, and the air flow sensor is arranged in the air passage to detect the air flow speed in the air passage;

and the ignition head is detachably connected with the body, the first air hole of the ignition head is communicated with the air passage, and the conductive piece of the ignition head is electrically connected with the main control circuit.

According to the ignition head, the first air hole is formed through the heat insulating piece and is communicated with the air passage of the body through the first air hole, the heating piece is arranged on the heat insulating piece and exposed out of the heat insulating piece, the heating piece is electrically connected with the body through the conductive piece, and meanwhile, the heat insulating piece is directly or indirectly connected with the body through the connecting piece, so that the heat insulating piece and the body can be detached. Because the heat insulating part can be detachably connected with the body through the connecting part, the ignition head and the body can be detached, so that when the ignition head is damaged, the ignition head only needs to be replaced, the body does not need to be discarded, and the utilization efficiency of the flame holder is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram illustrating an assembly structure of an embodiment of a lighting head and a body according to the present utility model;

FIG. 2 is a schematic diagram showing a cross-sectional structure of an embodiment of the ignition head and a body of the present utility model;

FIG. 3 is a schematic diagram of an explosion structure of an embodiment of the ignition head and a body of the present utility model;

FIG. 4 is a schematic view of an embodiment of an ignition head according to the present utility model;

FIG. 5 is a schematic view of an explosion structure of the ignition head according to the present utility model;

FIG. 6 is a schematic view of another exploded construction of the igniter of the utility model;

FIG. 7 is a schematic view of a cut-away structure of the ignition head of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name	Reference numerals	Name of the name
						1	Heat insulation piece	3	Conductive member	62	Second limit flange
11	First air hole	31	First conductive column	63	Mounting cavity
						12	Mounting groove	32	Second conductive column	64	A first cavity port
13	Mounting flange	4	Connecting piece	65	A second cavity port
						14	First plug hole	5	Fastening piece	7	Body
15	Second plug hole	51	First connecting hole	71	Airway passage
						16	First avoiding groove	52	Second connecting hole	72	Positive electrode
17	Second avoiding groove	53	Mounting hole	73	Negative electrode
						18	Interval of heating	54	Second air hole	74	Airflow sensor
2	Heating element	6	Connecting sleeve	100	Ignition head
						21	Heating wire	61	First limit flange	200	Fire clasp
22	End portion

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, "and/or" throughout this document includes three schemes, taking a and/or B as an example, including a technical scheme, a technical scheme B, and a technical scheme that both a and B satisfy; in addition, the technical solutions of the embodiments may be combined with each other, and it is necessary to base that the technical solutions can be implemented by those skilled in the art, and when the technical solutions are contradictory or cannot be implemented, it should be considered that the combination of the technical solutions does not exist and is not within the scope of protection claimed by the present utility model.

The present utility model mainly proposes an ignition head 100 for igniting inflammable substances including alcohol, kerosene, inflammable gas, smoke, paper towel, leaves, etc. The ignition head 100 has a heating wire 21 inside, and the heating wire 21 generates a high temperature after being electrified, so that the heating wire 21 can ignite inflammables. The ignition head 100 is generally mounted on one end of the body 7 of the flame holder 200, and the body 7 is provided with a control unit for controlling the operation of the ignition head 100, and a battery for supplying power. The whole body 7 is in a cylinder shape, and at least one end of the body 7 is open or is provided with an air outlet hole, so that an air passage 71 communicated with an external space is formed in the body 7, the air passage 71 supplies air to flow into the body 7, and the air flows out of the body 7, so that the air in the external space can circulate with the internal space of the body 7 through the air passage 71. The control unit and the battery are arranged in the body 7, and the control unit is arranged on the air flue 71, so that when the flow speed of the air flow reaches a set value, the control unit controls the ignition head 100 to work, at the moment, the heating wire 21 can ignite inflammables, when the flow speed of the air flow is smaller than the set value, and after the set time is reached, the control unit controls the heating wire 21 to stop working.

In an embodiment of the present utility model, as shown in fig. 1 to 7, the ignition head 100 includes:

a heat insulator 1, the heat insulator 1 having a first air hole 11, the first air hole 11 being for communication with the air passage 71 of the body 7; a heating element 2, wherein the heating element 2 is installed on and exposed out of the heat insulating element 1; a conductive member 3, wherein one end of the conductive member 3 is electrically connected with the heating member 2, and the other end is electrically connected with the body 7; and a connecting piece 4, wherein the connecting piece 4 is directly or indirectly connected with the heat insulation piece 1, and the connecting piece 4 is used for being detachably connected with the body 7. The heat insulator 1 is used for retarding heat flow transmission, and the heat insulator 1 may be made of glass fiber, asbestos, rock wool, silicate or ceramic. The whole of the heat insulating member 1 is cylindrical, and the first air holes 11 penetrate through both ends of the heat insulating member 1. The heat insulating member 1 may be directly attached to one end of the body 7 or may be indirectly attached to one end of the body 7, and is not particularly limited herein. When the heat insulating member 1 is only required to be mounted at one end of the body 7, the first air hole 11 of the heat insulating member 1 may communicate with the air passage 71 of the body 7, so that the air flow of the external space may enter the air passage 71 through the first air hole 11. The heating element 2 is used for generating high temperature, so that inflammable objects can be ignited by the heating element 2 after touching the heating element 2. The heat generating member 2 may be made of iron-chromium-aluminum alloy or nickel-chromium alloy, or the like. The whole of the heat generating element 2 is in a wire shape, a sheet shape, or the like. The heating element 2 is installed on the heat insulating element 1, can be located in the first air hole 11, can also be located outside the first air hole 11, and can be contacted with the heating element 2 only by inflammable substances, when the heating element 2 is installed in the first air hole 11, the heating element 2 can not completely block the first air hole 11, so that air flow passes through the first air hole 11. Specifically, the heating element 2 is a heating wire 21 wound around a disc shape, and two end portions 22 of the heating wire 21 are arranged at intervals; and/or the heating element 2 has elasticity, two ends of the heating element 2 are respectively used for connecting a positive electrode 72 and a negative electrode 73 of a power supply, and two ends of the heating element 2 are clamped on the heat insulating element 1. The two ends 22 of the heating wire 21 are used for electrical connection with the conductive member 3. The heating wire 21 is circular, so that when the heating wire 21 contacts with inflammable substances, the contact area of the heating element 2 and the inflammable substances can be increased, and the inflammable substances can be ignited efficiently. In order to increase the contact area of the heating element 2 with inflammable substances, the heating element 2 is in a wire shape and is in a disc shape, so that the heating element 2 has elasticity. The two ends of the heating element 2 may be directly electrically connected to the positive and negative poles 73 of the power supply, or may be indirectly connected to the positive and negative poles 73 of the power supply, and this embodiment will be described by taking the indirect connection to the positive and negative poles of the power supply as an example. After the heating element 2 is formed by a wire tray, two ends of the heating element 2 are clamped on the inner wall of the heat insulating element 1, so that the installation efficiency of the heating element 2 can be improved.

The conductive member 3 may be formed in a sheet shape, a columnar shape, or the like as a whole. The conductive member 3 may be disposed on the heat insulating member 1. The conductive member 3 may be made of aluminum or copper, etc. The type of the connection 4 may be a magnet, a screw, a plastic cylinder, a metal cylinder, etc. For example, when the connecting piece 4 is a magnet, the magnet may be disposed in a ring shape, the inner ring of the magnet is connected with the outer peripheral wall of the heat insulation piece 1, and a corresponding magnet is disposed on the inner wall of one end of the body 7, so that the heat insulation piece 1 and the body 7 can be detachably connected through the attraction of the two magnets. When connecting piece 4 is the screw, offer the first pilot hole of intercommunication body 7 inner space at the outer wall of the one end of body 7, the second pilot hole is offered to the perisporium of insulating part 1, when insulating part 1 sets up in body 7, the accessible screw passes first pilot hole and is connected with the second pilot hole for insulating part 1 and body 7 accessible screw can dismantle the connection. When connecting piece 4 is the plastic drum, the one end fixed connection of connecting piece 4 and the one end of insulating part 1 to the external diameter size and the body 7 internal diameter tight fit of connecting piece 4, so, when connecting piece 4 inserts body 7, accessible connecting piece 4 reaches the purpose that can go with body 7 between body 7 and the insulating part 1 tight fit.

According to the ignition head 100, the first air hole 11 is formed through the heat insulating piece 1 and is communicated with the air passage 71 of the body 7 through the first air hole 11, the heating piece 2 is arranged on the heat insulating piece 1 and exposed out of the heat insulating piece 1, the heating piece 2 is electrically connected with the body 7 through the conductive piece 3, and meanwhile, the heat insulating piece 1 is directly or indirectly connected with the body 7 through the connecting piece 4, so that the heat insulating piece 1 and the body 7 can be detached. Because the heat insulating piece 1 can be detachably connected with the body 7 through the connecting piece 4, the ignition head 100 and the body 7 can be detached, so that when the ignition head 100 is damaged, only the ignition head 100 is required to be replaced, the body 7 is not required to be discarded, and the utilization efficiency of the flame holder 200 is improved.

In some embodiments, as shown in fig. 5, a mounting groove 12 is formed at one end of the heat insulating member 1, and a mounting flange 13 is formed on a groove wall of the mounting groove 12, and the heat generating member 2 is received in the mounting groove 12 and mounted to the mounting flange 13 such that a heat generating space 18 is provided between the heat generating member 2 and a groove bottom of the mounting groove 12. The notch of the mounting groove 12 is located at an end of the heat insulating member 1 facing away from the body 7 so that inflammable substances can enter the mounting groove 12 through the notch to contact with the heat generating member 2, thereby igniting the inflammable substances. The mounting flange 13 extends in a ring shape along the groove wall of the mounting groove 12 so that the mounting flange 13 can support the rim of the heat generating member 2 so that a heat generating space 18 is formed between the groove bottoms of the mounting groove 12.

In some embodiments, as shown in fig. 5 to 7, the conductive member 3 includes a first conductive post 31 and a second conductive post 32, and the heat insulating member 1 is provided with a first plugging hole 14 and a second plugging hole 15; one end of the first conductive post 31 is inserted into the first insertion hole 14 and connected to one end of the heating element 2, and the other end is exposed out of the heat insulating element 1; one end of the second conductive post 32 is inserted into the second insertion hole 15 and connected to the other end of the heating element 2, and the other end is exposed out of the heat insulating element 1. The first conductive post 31 may be tightly fitted to the first plugging hole 14 or may be loosely fitted, which is not particularly limited herein. Similarly, the second conductive post 32 may be tightly fit with the second jack hole 15 or may be loose fit, which is not particularly limited herein. The two ends of the heating element 2 are respectively electrically connected with the body 7 through the first conductive column 31 and the second conductive column 32, so that the length of the heating element 2 can be fully utilized, and the heating area of the heating element 2 is increased. The first conductive post 31 and the second conductive post 32 may be in contact with the heat generating element 2, or may be welded to the heat generating element 2, and the contact is described as an example in this embodiment. Specifically, in some examples, a mounting groove 12 is formed at one end of the heat insulating member 1, and the heat generating member 2 is accommodated in the mounting groove 12; one ends of the first and second insertion holes 14 and 15 communicate with the mounting groove 12; a first avoiding groove 16 is formed on the groove wall of the mounting groove 12 at a position corresponding to the first plug hole 14 for mounting one end 22 of the heating element 2; a second avoiding groove 17 is formed on the groove wall of the mounting groove 12 at a position corresponding to the second plugging hole 15 for mounting the other end 22 of the heating element 2. The notch of the mounting groove 12 is located at the end of the heat insulating member 1 facing away from the body 7 so that inflammable substances can enter the mounting groove and come into contact with the heat generating member 2. The bottom and the mounting groove 12 intercommunication of first spliced eye 14 and second spliced eye 15 from mounting groove 12, so, when being formed with first groove 16 of dodging on the cell wall of mounting groove 12, one tip 22 of heating element 2 can keep away from the one end butt of body 7 through first groove 16 and first conductive column 31 dodges, reaches the purpose of some connection, and in addition, two tip 22 of heating wire 21 are all greater than heating wire 21 mid portion for one tip 22 of heating wire 21 and first groove 16 tight fit of dodging reach the purpose of fixed heating element 2 one tip 22. Similarly, when the second avoidance groove 17 is formed on the groove wall of the mounting groove 12, the other end 22 of the heating element 2 can be abutted with one end, far away from the body 7, of the second conductive column 32 through the second avoidance groove 17, so that the purpose that the heating element 2 is electrically connected with the second conductive column 32 is achieved. In addition, the other end 22 of the heating wire 21 is tightly matched with the second avoiding groove 17, so that the purpose of fixing the other end 22 of the heating wire 21 is achieved, and the heating element 2 is fixed.

In some embodiments, as shown in fig. 5 to 7, the ignition head 100 further includes a fastener 5, the fastener 5 is connected to the heat insulating member 1, and the connecting member 4 is disposed on the fastener 5. The fastening member 5 may be connected to the heat insulating member 1 by a bolt, or by glue bonding or the like, and is not particularly limited herein. Specifically, in some examples, the fastener 5 is connected to an end of the heat insulating member 1 opposite to the heat generating member 2. The conductive member 3 comprises a first conductive column 31 and a second conductive column 32, and the heat insulating member 1 is provided with a first plug hole 14 and a second plug hole 15; a first connecting hole 51 is formed in the fastener 5 corresponding to the first plug hole 14, and a second connecting hole 52 is formed in the fastener corresponding to the second plug hole 15; the first conductive post 31 is inserted into the first connecting hole 51 and the first inserting hole 14 to connect the heat insulating member 1 and the fastening member 5; the second conductive post 32 is inserted into the second connecting hole 52 and the second inserting hole 15 to connect the heat insulating member 1 and the fastening member 5; and/or, the fastening piece 5 is provided with a mounting hole 53, and the connecting piece 4 is mounted in the mounting hole 53 and exposed out of the fastening piece 5; and/or, the connecting piece 4 is a magnetic connecting piece 4; and/or the fastener 5 has a second air hole 54, the second air hole 54 being in communication with the first air hole 11. The fastener 5 is connected with the heat insulating piece 1 through the first conductive column 31 and the second conductive column 32, so that the fastener 5 and the heat insulating piece 1 are simplified, and the compactness of the ignition head 100 is improved. In addition, it should be noted that the first conductive post 31 includes a first stop portion and a first connection portion, the radial dimension of the first connection portion is smaller than the aperture of the first connection hole 51, and the radial dimension of the first connection portion is larger than the aperture of the first plug hole 14, so that when the first connection portion is inserted into the first plug hole 14, the first connection portion is tightly matched with the first plug hole 14. The first stop portion has a size larger than the aperture of the first connecting hole 51, so that when the first connecting portion passes through the first connecting hole 51 to be matched with the first plug hole 14, the first stop portion is located outside the first connecting hole 51, and the heat insulating member 1 and the fastener 5 can be connected. Similarly, the second conductive post 32 includes a second stop portion and a second connection portion, where a radial dimension of the second connection portion is smaller than an aperture of the second connection hole 52, and a radial dimension of the second connection portion is larger than an aperture of the second plug hole 15, so that when the second connection portion is inserted into the second plug hole 15, the second connection portion is tightly matched with the second plug hole 15. The radial dimension of the second stop portion is larger than the aperture of the second connecting hole 52, so that when the second connecting portion passes through the second connecting hole 52 to be matched with the second plug hole 15, the second stop portion is positioned outside the second connecting hole 52, and the heat insulation piece 1 and the fastener 5 can be connected. The connecting piece 4 is cylindrical, and the connecting piece 4 is tightly matched with the mounting hole 53, so that the connecting piece 4 can be connected with the fastener 5 after the connecting piece 4 is arranged in the mounting hole 53. The connecting piece 4 may be made of a magnet, an electromagnet, metallic iron, iron alloy, etc., and the connecting piece 4 is used for attracting with another magnet in the body 7, so that the heat insulating piece 1 may be detachably connected with the body 7 through the connecting piece 4. Specifically, in some examples, the number of the connecting members 4 is two, and the number of the mounting holes 53 is two, and the two mounting holes 53 are disposed at a distance therebetween, and the connecting members 4 are tightly fitted to the mounting. The second air holes 54 communicate with the first air holes 11 to facilitate air flow through the fastener 5 into the interior of the body 7.

In some embodiments, as shown in fig. 5-7, the firing head 100 further includes a connection sleeve 6, the connection sleeve 6 having a mounting cavity 63 and a first cavity port 64 and a second cavity port 65 in communication with the mounting cavity 63; the heat insulating member 1 and the connecting member 4 are accommodated in the installation cavity 63, the heat generating member 2 is exposed through the first cavity opening 64, and the connecting member 4 is exposed through the second cavity opening 65. The heat insulating member 1 may be tightly fitted to the connecting sleeve 6 or may be clearance fitted to the connecting sleeve 6, and this embodiment is described by taking clearance fit as an example. After the heat insulating piece 1 is arranged in the mounting cavity 63, the heat insulating piece 1 is all positioned in the mounting cavity 63, so that the connecting sleeve 6 can play a role in protecting the heat insulating piece 1 when the ignition head 100 falls on the ground or collides with other foreign matters. The connecting member 4 may extend out of the mounting cavity 63 through the first cavity opening 64, or may be exposed only through the mounting cavity 63, which is not particularly limited herein.

In some embodiments, as shown in fig. 7, a first limit flange 61 is provided on the inner sidewall of the mounting cavity 63 adjacent to the first cavity opening 64, and the first limit flange 61 is used to prevent the heat insulating member 1 from moving toward the first cavity opening 64 when abutting against the end 22 of the heat insulating member 1; and/or a second limit flange 62 is arranged on the outer side wall of the connecting sleeve 6 adjacent to the first cavity opening 64, and the end 22 of the connecting sleeve 6 with the second cavity opening 65 is used for being spliced with the body 7; the second limiting flange 62 is used for preventing the connecting sleeve 6 from moving into the body 7 when abutting against the body 7. The first limiting flange 61 may extend along the wall of the installation cavity 63 to form a ring shape, may also form a plurality of ribs, etc., and the plurality of ribs may be arranged in a ring shape, or may only have one rib, etc., and in this embodiment, the first limiting flange 61 extends along the wall of the installation cavity 63 to form a ring shape, so that the heat insulation member 1 may be more stable. The second limiting flange 62 is located on the outer peripheral wall of the connecting sleeve 6, the overall shape of the second limiting flange 62 may be annular, or a plurality of ribs may be arranged at intervals along the circumferential direction of the connecting sleeve 6, in this embodiment, the second limiting flange 62 extends in the circumferential direction of the connecting sleeve 6 to be annular, and the second limiting flange 62 extends toward the first cavity opening 64. For convenient disassembly, the outer peripheral wall of the second limit flange 62 is provided with a plurality of anti-skid grooves, the anti-skid grooves extend along the axial direction of the second limit flange 62, and the anti-skid grooves are distributed along the circumferential direction of the second limit flange 62 at intervals, so that the surface roughness of the second limit flange 62 can be achieved, and the second limit flange 62 can be grasped during convenient disassembly.

In some embodiments, as shown in fig. 5 to 7, the ignition head 100 further includes a fastener 5, the fastener 5 is connected to the heat insulating member 1, and the connecting member 4 is disposed on the fastener 5; the radial dimension of the fastener 5 is larger than the radial dimension of the heat insulating member 1, and the fastener 5 is tightly fitted with the installation cavity 63. The fastener 5 is disposed at an end of the mounting cavity 63 adjacent to the second cavity opening 65, such that the fastener 5 can restrict the heat insulating member 1 from exiting the mounting cavity 63 from the second cavity opening 65, thereby improving the stability of the heat insulating member 1. It should be noted that, the conductive member 3 includes a first conductive post 31 and a second conductive post 32, and the heat insulating member 1 is provided with a first plugging hole 14 and a second plugging hole 15; the fastener 5 is provided with a first connecting hole 51 corresponding to the first inserting hole 14 and a second connecting hole 52 corresponding to the second inserting hole 15; the first conductive post 31 is inserted into the first connecting hole 51 and the first inserting hole 14 to connect the heat insulating member 1 and the fastener 5; the second conductive posts 32 are inserted into the second connection holes 52 and the second insertion holes 15 to connect the heat insulating member 1 and the fastening member 5, so that the stability of connecting the heat insulating member 1 and the fastening member 5 is improved. The fastening piece 5 is provided with a mounting hole 53, and the connecting piece 4 is mounted in the mounting hole 53 and exposed out of the fastening piece 5. The connecting piece 4 is a magnetic connecting piece 4, so that the convenience of loading and unloading is improved. The fastener 5 has a second air hole 54, the second air hole 54 being in communication with the first air hole 11 to facilitate circulation of external air through the insulation 1 and the fastener 5 into the body 7.

The utility model also provides a fire folder 200, the fire folder 200 comprises a body 7, the body 7 comprises a main control circuit and an air flow sensor 74 electrically connected with the main control circuit, the body 7 is provided with an air passage 71, and the air flow sensor 74 is arranged in the air passage 71 to detect the air flow speed in the air passage 71; the flame holder 200 further comprises a flame head 100, the flame head 100 is detachably connected with the body 7, the first air hole 11 of the flame head 100 is communicated with the air channel 71, and the conductive piece 3 of the flame head 100 is electrically connected with the main control circuit. The specific structure of the ignition head 100 refers to the above embodiment, and since the present flame holder 200 adopts all the technical solutions of all the embodiments, it has at least all the beneficial effects brought by the technical solutions of the embodiments, and will not be described in detail herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (10)

1. An ignition head for a flame envelope comprising a body having an air passage, the ignition head comprising:

the heat insulation piece is provided with a first air hole, and the first air hole is used for communicating with the air passage of the body;

the heating element is arranged on and exposed out of the heat insulation element;

one end of the conductive piece is electrically connected with the heating piece, and the other end of the conductive piece is electrically connected with the body;

the connecting piece is directly or indirectly connected with the heat insulation piece and is used for being detachably connected with the body.

2. The ignition head of claim 1, wherein an installation recess is formed at one end of the heat insulating member, and the heat generating member is accommodated in the installation recess; or, a mounting groove is formed at one end of the heat insulating piece, a mounting flange is formed on the groove wall of the mounting groove, and the heating piece is accommodated in the mounting groove and is lapped on the mounting flange, so that a heating interval is formed between the heating piece and the groove bottom of the mounting groove; and/or the number of the groups of groups,

the heating element is a heating wire which is wound around a disc shape, two end parts of the heating wire are arranged at intervals and/or,

the heating element is elastic, two ends of the heating element are respectively used for connecting an anode and a cathode of a power supply, and two ends of the heating element are clamped on the heat insulation element.

3. The ignition head of claim 1, wherein the conductive member comprises a first conductive post and a second conductive post, and the heat insulating member is provided with a first plug hole and a second plug hole;

one end of the first conductive column penetrates through the first inserting hole and is connected with one end of the heating element, and the other end of the first conductive column is exposed out of the heat insulating element;

one end of the second conductive column penetrates through the second plug hole and is connected with the other end of the heating element, and the other end of the second conductive column is exposed out of the heat insulating element.

4. The ignition head of claim 3, wherein one end of the heat insulating member is formed with a mounting groove, and the heat generating member is accommodated in the mounting groove;

one end of the first plug hole and one end of the second plug hole are communicated with the mounting groove;

a first avoiding groove is formed on the groove wall of the mounting groove at a position corresponding to the first plug hole so as to mount one end part of the heating element;

a second avoidance groove is formed on the groove wall of the mounting groove at a position corresponding to the second plug hole so as to mount the other end part of the heating element.

5. The ignition head of claim 1 further comprising a fastener coupled to the thermal shield, the connector being disposed on the fastener.

6. The ignition head of claim 5, wherein said fastener is connected to an end of said insulating member opposite said heat generating member; and/or the number of the groups of groups,

the heat insulation piece comprises a heat insulation piece and is characterized in that the heat insulation piece comprises a first heat insulation piece and a second heat insulation piece; a first connecting hole is formed in the fastener corresponding to the first inserting hole, and a second connecting hole is formed in the fastener corresponding to the second inserting hole; the first conductive column is inserted into the first connecting hole and the first inserting hole to connect the heat insulating piece and the fastening piece; the second conductive column is inserted into the second connecting hole and the second inserting hole to connect the heat insulating piece and the fastening piece; and/or the number of the groups of groups,

the fastener is provided with a mounting hole, and the connecting piece is arranged in the mounting hole and exposed out of the fastener; and/or the number of the groups of groups,

the connecting piece is a magnetic connecting piece and is used for being magnetically adsorbed and connected with the body; and/or the number of the groups of groups,

the fastener has a second air hole in communication with the first air hole.

7. The ignition head of claim 1 further comprising a connection sleeve having a mounting cavity and first and second cavity ports in communication with the mounting cavity;

the heat insulation piece and the connecting piece are accommodated in the installation cavity, the heating piece is exposed through the first cavity opening, and the connecting piece is exposed through the second cavity opening.

8. The ignition head of claim 7, wherein a first stop flange is provided on an inner sidewall of the mounting cavity adjacent the first cavity opening, the first stop flange being adapted to prevent movement of the insulating member toward the first cavity opening when abutting an end of the insulating member; and/or the number of the groups of groups,

a second limit flange is arranged on the outer side wall of the connecting sleeve adjacent to the first cavity opening, and the end part of the connecting sleeve with the second cavity opening is used for being spliced with the body; the second limit flange is used for preventing the connecting sleeve from moving towards the body when being abutted with the body.

9. The ignition head of claim 7 further comprising a fastener coupled to said insulating member, said connector being disposed on said fastener;

the radial dimension of the fastener is larger than that of the heat insulating piece, and the fastener is tightly matched with the mounting cavity.

10. A fire folder, the fire folder comprising:

the body comprises a main control circuit and an air flow sensor electrically connected with the main control circuit, the body is provided with an air passage, and the air flow sensor is arranged in the air passage to detect the air flow speed in the air passage;

the ignition head of any one of claims 1 to 9, wherein the ignition head is detachably connected with the body, a first air hole of the ignition head is communicated with the air passage, and a conductive piece of the ignition head is electrically connected with the main control circuit.