General rapid motor vehicle exhaust spark arrester

Abstract

The invention discloses a general rapid motor vehicle exhaust spark arrester which comprises a spark arrester shell and a valve element, the spark arrester shell comprises a spark arrester shell body and an air inlet sleeve, the valve element is located in the spark arrester shell body, an air inlet sleeve flange plate is arranged at the first end of the air inlet sleeve, and an air outlet sleeve flange plate is arranged at the second end of the air inlet sleeve. The second end is fixedly connected with an exhaust tail pipe; a body flange plate is arranged at the air inlet end of the spark arrester shell body, one of the air inlet sleeve flange plate and the body flange plate is provided with an inserting groove, the other one of the air inlet sleeve flange plate and the body flange plate is provided with an inserting piece, and when the spark arrester shell body and the air inlet sleeve are assembled and communicated, the inserting piece is inserted into the inserting groove. The air inlet sleeve flange plate and the body flange plate are fixed through a fixing device. The body flange plate and the air inlet sleeve flange plate are connected in a slot insertion piece mode, the mounting and dismounting process is simple, quick dismounting and mounting can be achieved, and mounting is firm and stable.

Description

Technical Field

[0001] The invention belongs to the technical field of devices for extinguishing engine exhaust sparks, and in particular relates to a universal quick-type motor vehicle exhaust spark extinguisher. Background Art

[0002] When motor vehicles enter fire-prohibited areas, they must be equipped with motor vehicle exhaust spark arresters according to regulations. At present, motor vehicle exhaust spark arresters are used at the end of the tail pipe of the car exhaust pipe. The special structure in the spark arrester is used to block the sparks generated in the exhaust tail pipe, so that vehicles can be safe when entering various occasions and areas (flammable and explosive factory areas, gas stations, gas stations, oil depots and other areas) for operation, which can effectively reduce the accident rate of fire.

[0003] The connected motor vehicle exhaust spark arrester is fixed to the exhaust tail pipe of the motor vehicle by a clamp, or a longitudinal long groove is opened at the air inlet, and the motor vehicle exhaust spark arrester is clamped on the exhaust tail pipe of the motor vehicle by using the elasticity of the air inlet. Although these two installation methods are simple, the connection is not firm, and the motor vehicle exhaust spark arrester is easy to fall off, which poses a fire hazard. Application No. 200620023921.0 "Safety Fire Cap" discloses a technology of adding a bolt clamping hoop to the longitudinal long groove at the air inlet end of the safety fire cap, and the safety fire cap is clamped on the exhaust tail pipe of the motor vehicle by the bolt clamping hoop. This installation method is safe and reliable, but it is difficult to tighten and loosen the bolt clamping hoop, and the installation and removal of the safety fire cap takes a long time, and the requirements for the matching of the inner diameter of the air inlet of the safety fire cap and the outer diameter of the exhaust tail pipe are strict. Summary of the invention

[0004] The purpose of the present invention is to provide a universal quick-type motor vehicle exhaust spark arrester, which solves the technical problems that the existing exhaust spark arrester and the exhaust tail pipe are simply assembled but poorly stable or are complicated to assemble.

[0005] In order to achieve the above-mentioned purpose of the invention, the universal quick-type motor vehicle exhaust spark arrester provided by the present invention is implemented by the following technical scheme: A universal quick-acting motor vehicle exhaust spark arrester comprises a spark arrester housing and a valve core, wherein the spark arrester housing comprises: A spark arrester housing body and an air inlet sleeve, wherein the valve core is located in the spark arrester housing body, an air inlet sleeve flange is provided at the first end of the air inlet sleeve, a body flange is provided at the air inlet end of the spark arrester housing body, and the second end of the air inlet sleeve is used for fixed connection with the exhaust tail pipe; One of the air inlet sleeve flange and the body flange is provided with a slot, and the other is provided with an insert. When the spark arrester housing body and the air inlet sleeve are assembled and connected, the insert is inserted into the slot, and the air inlet sleeve flange and the body flange are fixed by a fixing device.

[0006] In the universal quick-type motor vehicle exhaust spark arrester as described above, the air inlet sleeve flange and the body flange are both square, and the slots are located on three sides of the square.

[0007] As described above, the universal quick-type motor vehicle exhaust spark arrester has a flange with an insert that is not provided with a limit stopper on one side opposite to the slot.

[0008] In the universal quick-type motor vehicle exhaust spark arrester as described above, the fixing device includes flange connecting bolts.

[0009] As described above, in the universal quick-type motor vehicle exhaust spark arrester, the end of the flange connecting bolt is provided with a screwing component.

[0010] As described above, in the universal quick-type motor vehicle exhaust spark arrester, a spring is arranged between the screwing component and one of the air inlet sleeve flange and the body flange.

[0011] As described above, the universal quick-type motor vehicle exhaust spark arrester, the valve core includes a first valve core part and a second valve core part connected, a cavity is formed between the first valve core part and the second valve core part, a plurality of openings are arranged on the first valve core part, inclined baffles are arranged at the openings, and the second valve core part is provided with turbine blades.

[0012] As described above, in the universal quick-type motor vehicle exhaust spark arrester, the openings are all located on the vertical plane of the valve core center axis, the projection of the baffle on the vertical plane of the valve core center axis covers the opening, and the projections of at least some of the turbine blades on the vertical plane of the valve core center axis intersect or overlap.

[0013] As described above, the universal quick-acting motor vehicle exhaust spark arrester, the valve core includes a central axis, the motor vehicle exhaust spark arrester includes a connecting shaft and a handle, the connecting shaft is rotatably connected to the spark arrester housing body, and the connecting shaft is assembled with the central axis of the valve core to realize linkage between the two.

[0014] The universal quick-acting motor vehicle exhaust spark arrester as described above is characterized in that the valve core is assembled with the central shaft through a fixing member, and the fixing member fixes the connecting shaft.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows: the universal quick-acting motor vehicle exhaust spark arrester of the present invention comprises a spark arrester housing and a valve core, the spark arrester housing comprises a spark arrester housing body and an air inlet sleeve, the valve core is located in the spark arrester housing body, an air inlet sleeve flange is provided at the first end of the air inlet sleeve, a body flange is provided at the air inlet end of the spark arrester housing body, and the second end of the air inlet sleeve is used for fixed connection with the exhaust tail pipe; a slot is provided on one of the air inlet sleeve flange and the body flange, and the other is provided as an insert, and when the spark arrester housing body and the air inlet sleeve are assembled and connected, the insert is inserted in the slot, and the air inlet sleeve flange and the body flange are fixed by a fixing device. The exhaust spark arrester of the present invention is provided with an air inlet sleeve, the second end of which is fixed on the exhaust tail pipe, the body flange and the air inlet sleeve flange are connected in a slot-insert type, when installing, the insert is inserted into the slot and fixed by a fixing device, when disassembling, only the fixing device needs to be loosened, and the insert is pulled out of the slot to complete the disassembly. Therefore, the installation and disassembly process of the present invention is simple, quick disassembly and assembly can be achieved, and the installation is firm and stable.

[0016] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention; Figure 2 It is an exploded view of the spark arrester housing body and the air inlet sleeve of a specific embodiment of the present invention; Figure 3 It is an exploded view of the spark arrester housing body and the air inlet sleeve according to a specific embodiment of the present invention. Figure 4 , 5 is a schematic diagram of the valve core; Figure 6 This is an exploded view of the valve core; Figure 7 It is a cross-sectional view of the spark arrester at the connecting shaft.

[0018] In the figure: 1, spark arrester housing body; 11, body flange; 111, slot; 12, rotating hole; 2. Air inlet sleeve; 21. Air inlet sleeve flange; 211. Insert; 212. Limit stopper; 51. Flange connecting bolts; 511. Screw-on parts; 52. Spring; 31. first valve core portion; 311. opening; 312. baffle; 32. second valve core portion; 321. turbine blade; 33. Central axis; 34. Fixing parts; 41. Connecting shaft; 42. Handle. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] like Figure 1-Figure 3 As shown, a universal quick-acting motor vehicle exhaust spark arrester comprises a spark arrester housing and a valve core. The spark arrester housing comprises a spark arrester housing body 1 and an air inlet sleeve 2.

[0021] After the spark arrester housing body 1 and the air inlet sleeve 2 are connected and assembled, the axes of the two are the same axis and the inner diameters of the two are the same.

[0022] The valve core is located in the spark arrester housing body 1 .

[0023] An air inlet sleeve flange 21 is provided at the first end of the air inlet sleeve 2, and the second end of the air inlet sleeve 2 is used for fixedly connecting to the exhaust tail pipe.

[0024] A body flange 11 is provided at the air inlet end of the spark arrester housing body 1 .

[0025] The spark arrester housing body 1 is assembled and connected with the air inlet sleeve 2, and the body flange 11 is detachably connected with the air inlet sleeve flange 21. The spark arrester housing body 1 is assembled and connected with the air inlet sleeve 2 through the body flange 11 and the air inlet sleeve flange 21.

[0026] One of the air inlet sleeve flange 21 and the body flange 11 is provided with a slot, and the other is provided with an insert. When the spark arrester housing body 1 and the air inlet sleeve 2 are assembled and connected, the insert is inserted into the slot, and the air inlet sleeve flange 21 and the body flange 11 are fixed by a fixing device.

[0027] By adding an air inlet sleeve 2 to the exhaust spark arrester housing body 1, the second end of the air inlet sleeve 2 is fixed on the exhaust tail pipe, and the main body flange 11 of the spark arrester housing body 1 and the air inlet sleeve flange 21 of the air inlet sleeve 2 are connected in a slot-insert type. When installing, the insert is inserted into the slot and fixed by a fixing device. When disassembling, only the fixing device needs to be loosened and the insert is pulled out of the slot to complete the disassembly. Therefore, the installation and disassembly process of the spark arrester housing body 1 of the present invention is simple, and can be quickly disassembled and assembled, and the installation is firm and stable.

[0028] The air inlet sleeve flange 21 and the body flange 11 are both square, and the slots are located on three sides of the square.

[0029] A limit stopper is arranged on an edge of the flange with the inserting piece which is not opposite to the slot.

[0030] In this embodiment, slots 111 are formed on three sides of the square body flange 11 , and inserts 211 are formed on the air inlet sleeve flange 21 .

[0031] The three sides of the square body flange 11 are connected with vertical folded edges perpendicular to the square body flange 11, the vertical folded edges are connected with parallel folded edges perpendicular to the vertical folded edges, the parallel folded edges are parallel to the square body flange 11, and the space formed by the square body flange 11, the vertical folded edges and the parallel folded edges is a slot 111.

[0032] The three sides of the square air inlet sleeve flange 21 form inserts 211 .

[0033] A limiting stopper 212 is provided on the fourth side of the square air inlet sleeve flange 21 .

[0034] The limiting baffle 212 is a folded edge formed on the fourth side, and can contact the fourth side of the main body flange 11 to form a limit.

[0035] The limiting baffle 212 is vertically arranged to the air inlet sleeve flange 21 .

[0036] When the spark arrester housing body 1 and the air inlet sleeve 2 are assembled in place, the inserting piece 211 is inserted into the slot 111 , and the limiting stopper 212 contacts the fourth edge of the body flange 11 .

[0037] In order to ensure the stability of the assembly of the spark arrester housing body 1 and the air inlet sleeve 2 , the fixing device includes flange connection bolts 51 .

[0038] In order to facilitate the operation of the flange connecting bolt 51 , a screwing component 511 is provided at the end of the flange connecting bolt 51 .

[0039] A spring 52 is provided between the screwing component 511 and one of the air inlet sleeve flange 21 and the body flange 11 .

[0040] When the spark arrester housing body 1 and the air inlet sleeve 2 are assembled, it is only necessary to insert the insert 211 into the slot 111, which is convenient and quick. At the same time, the setting of the fixing device can ensure the stability of the assembly of the spark arrester housing body 1 and the air inlet sleeve 2, and the fixing device is easy to operate and can be manually operated, which is convenient for disassembly.

[0041] Motor vehicles can select spark arresters of appropriate specifications according to their own displacement. The air inlet sleeve can be fixed on the exhaust tail pipe all the time without removal. When in use, just quickly install the slot of the spark arrester body flange of the corresponding specification on the insert of the air inlet sleeve flange, and tighten the fixing device to achieve installation. It is convenient and fast, and can achieve rapid connection and removal of the spark arrester. The spark arrester can be installed and removed at any time, even when there are no convenient tools.

[0042] like Figure 4-Figure 6 As shown, the valve core includes a first valve core portion 31 and a second valve core portion 32 which are connected, a cavity is formed between the first valve core portion 31 and the second valve core portion 32 , and in the gas flow direction, the first valve core portion 31 is located upstream of the second valve core portion 32 .

[0043] The first valve core portion 31 is provided with a plurality of openings 311 , and inclined baffles 312 are provided at the openings 311 . The second valve core portion 32 is provided with turbine blades 321 .

[0044] The openings 311 are all located on the vertical plane of the valve core center axis, the projection of the baffle 312 on the vertical plane of the valve core center axis covers the opening 311, and the projections of at least some turbine blades 321 on the vertical plane of the valve core center axis intersect or overlap.

[0045] The second valve core 32 is in the form of a turbine. When the exhaust gas passes through the valve core in the spark arrester, a rotating airflow is formed. If there is a spark, it will touch the baffle 312 left when the first valve core 31 is opened, thereby achieving the purpose of extinguishing the spark, effectively reducing the temperature and pressure of the exhaust gas and attenuating the pulsation of the exhaust gas pressure. The effect of extinguishing the spark is good, the exhaust gas flows out smoothly, and the exhaust resistance and power loss are small. The valve core includes a central shaft 33 , and the first valve core portion 31 and the second valve core portion 32 are both mounted on the central shaft 33 .

[0046] The motor vehicle exhaust spark arrester comprises a connecting shaft 41 and a handle 42 , wherein the connecting shaft 41 is rotatably connected to the spark arrester housing body 1 .

[0047] Two rotating holes 12 are arranged on the spark arrester housing body 1 , and the connecting shaft 41 is rotatably mounted in the rotating holes 12 .

[0048] The connecting shaft 41 is assembled with the central shaft 33 of the valve core to realize the linkage between the two. The handle 42 drives the connecting shaft to rotate, and the connecting shaft 41 drives the central shaft 33 of the valve core to rotate.

[0049] When the connecting shaft 41 drives the valve core to rotate until the central axis 33 of the valve core coincides with the axis of the spark arrester housing body 1, the valve core is closed to extinguish the spark. When the connecting shaft 41 drives the valve core to rotate until the central axis 33 of the valve core is perpendicular to the axis of the spark arrester housing body 1, the valve core is opened, which can be used in scenarios where the spark arrester is not required to facilitate exhaust. The valve core can be closed when entering a fire-prohibited area and opened when leaving a fire-prohibited area by operating the handle 42.

[0050] The valve core is assembled with the central shaft 33 via a fixing member 34 , and the fixing member 34 fixes the connecting shaft 41 and the central shaft 33 at the same time.

[0051] In order to ensure the stability of the rotation process of the connecting shaft 41 and limit the rotation range, a limit device is provided on the spark arrester housing body 1, a limit plate is provided on the handle 42, a limit groove is provided on the limit plate, and the limit groove cooperates with the limit device.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A universal quick-acting motor vehicle exhaust spark arrester, comprising a spark arrester housing and a valve core, characterized in that: The spark arrester housing comprises: A spark arrester housing body and an air inlet sleeve, wherein the valve core is located in the spark arrester housing body, an air inlet sleeve flange is provided at the first end of the air inlet sleeve, a body flange is provided at the air inlet end of the spark arrester housing body, and the second end of the air inlet sleeve is used for fixed connection with the exhaust tail pipe; One of the air inlet sleeve flange and the body flange is provided with a slot, and the other is provided with an insert. When the spark arrester housing body and the air inlet sleeve are assembled and connected, the insert is inserted into the slot, and the air inlet sleeve flange and the body flange are fixed by a fixing device.

2. The universal quick-acting motor vehicle exhaust spark arrester according to claim 1 is characterized in that: The air inlet sleeve flange and the body flange are both square, and the slots are located on three sides of the square.

3. The universal quick-type motor vehicle exhaust spark arrester according to claim 2 is characterized in that: A limit stopper is arranged on an edge of the flange with the inserting piece which is not opposite to the slot.

4. The universal quick-acting motor vehicle exhaust spark arrester according to claim 1, characterized in that: The fixing device comprises flange connecting bolts.

5. The universal quick-acting motor vehicle exhaust spark arrester according to claim 4, characterized in that: The end of the flange connecting bolt is provided with a screwing component.

6. The universal quick-acting motor vehicle exhaust spark arrester according to claim 5, characterized in that: A spring is arranged between the screwing component and one of the air inlet sleeve flange and the body flange.

7. The universal quick-acting motor vehicle exhaust spark arrester according to claim 1, characterized in that: The valve core includes a first valve core part and a second valve core part which are connected, a cavity is formed between the first valve core part and the second valve core part, a plurality of openings are arranged on the first valve core part, inclined baffles are arranged at the openings, and turbine blades are arranged on the second valve core part.

8. The universal quick-acting motor vehicle exhaust spark arrester according to claim 7, characterized in that: The openings are all located on the vertical plane of the valve core center axis, the projection of the baffle on the vertical plane of the valve core center axis covers the opening, and the projections of at least some of the turbine blades on the vertical plane of the valve core center axis intersect or overlap.

9. The universal quick-acting motor vehicle exhaust spark arrester according to any one of claims 1 to 8, characterized in that: The valve core comprises a central axis, the motor vehicle exhaust spark arrester comprises a connecting shaft and a handle, the connecting shaft is rotatably connected to the spark arrester housing body, and the connecting shaft is assembled with the central axis of the valve core to realize linkage between the two.

10. The universal quick-acting motor vehicle exhaust spark arrester according to claim 9, characterized in that: The valve core is assembled with the central shaft via a fixing member, and the fixing member fixes the connecting shaft.

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