Smoke spray gun and smoke leak detector thereof
By designing a portable smoke spray gun and smoke leak detector, using smoke spraying and observing the outflow position, the existing equipment is large in size, inconvenient to carry and poor judgment intuition, and efficient and accurate vehicle air filter leakage detection is achieved.
Patent Information
- Application Number
- CN202421612971.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-09
AI Technical Summary
The existing vehicle detection equipment is large in size and inconvenient to carry, making it difficult to accurately determine the air inlet leakage position of the air filter, resulting in poor judgment intuitiveness and easy errors.
A portable smoke spray gun and smoke leak detector are designed to determine the leakage point by spraying smoke and observing its outflow position. The smoke spray gun adopts a hollow chamber structure, combining an axial flow fan and a thimble to achieve preset path injection of smoke.
It realizes a detection equipment with small size, easy portability and simple operation, improves the accuracy and detection efficiency of leakage positions, and reduces errors and detection time.
Smart Images
Figure CN222748195U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of vehicle detection, in particular to a smoke spray gun for detecting a vehicle air filter and a portable smoke leak detector using the smoke spray gun. Background Art
[0002] Since the air filter and other structural parts of the mule car are not properly assembled after being assembled to the whole vehicle, it will affect the actual performance of the whole vehicle. However, it is impossible to determine the location of the intake leak by naked eyes. The relevant leak detection instruments on the market are large in size and require a large space for carrying and operation. There is a lack of a leak detection instrument that is small in size, easy to carry, and simple to operate. In the absence of or inappropriate use of such professional equipment, it can only be judged by listening or feeling, which is less intuitive, prone to errors, and cannot simultaneously check the leak point. Utility Model Content
[0003] The utility model aims to provide a smoke spray gun, which can make the smoke entering the spray gun be sprayed out from the spray gun along a preset path.
[0004] Another object of the utility model is to provide a smoke leak detector which can spray smoke and determine the exact location of the leak by observing the location where the smoke flows out.
[0005] The utility model provides a smoke spray gun, comprising a gun body with a hollow chamber. An air inlet and an air outlet are respectively provided at two ends of the hollow chamber. The smoke spray gun also includes a connecting port and an ejector pin. The connecting port is provided on the side wall of the hollow chamber. One end of the ejector pin passes through the connecting port, and the other end is fixed to the side wall of the hollow chamber along the radial direction of the hollow chamber. The ejector pin has a needle body, a smoke inlet hole and a smoke outlet hole. The needle body is in the shape of a thin tube and is a hollow cavity. The smoke inlet hole is located at one end of the needle body extending into the connecting port. The smoke outlet hole is provided on the side of the needle body facing the air outlet.
[0006] With the smoke spray gun provided by the utility model, smoke entering the needle body of the ejector through the smoke inlet hole of the ejector can enter the hollow cavity of the gun body through the smoke outlet hole of the ejector, and can flow out of the smoke spray gun from the air outlet of the smoke spray gun.
[0007] In an illustrative embodiment of the smoke spray gun provided by the utility model, the smoke spray gun further includes an axial flow fan, an air intake hood, a handle and a control switch. The axial flow fan is arranged in the air intake port. The air intake hood is located at the air intake port and covers the axial flow fan. The handle is connected to the gun body, and a battery compartment is provided inside the handle. The control switch is connected to the battery compartment to control the connection and / or disconnection between the battery in the battery compartment and the axial flow fan. Thereby, the air entering the gun body through the air intake port will flow in the direction of the air outlet, so that the smoke entering the hollow chamber of the gun body through the smoke outlet hole of the ejector pin flows out of the smoke spray gun from the air outlet of the smoke spray gun.
[0008] In another exemplary embodiment of the smoke spray gun provided by the utility model, the handle is integrally formed with the gun body, thereby simplifying the structure of the smoke spray gun, reducing the volume of the smoke spray gun, thereby simplifying the manufacture of the smoke spray gun and reducing the manufacturing cost.
[0009] In another exemplary embodiment of the smoke spray gun provided by the utility model, the handle is hingedly connected to the gun body so as to be foldable with the gun body, thereby further reducing the volume of the smoke spray gun during carrying and transportation, making it easier to use.
[0010] The utility model also provides a smoke leak detector, comprising the above-mentioned smoke spray gun and a smoke can. The smoke can has a can opening, which is sealed and connected to the connection port, and the ejector pin passes through the can opening via the connection port. Therefore, when the smoke can is installed on the connection port, the ejector pin pierces the can opening, so that the smoke in the smoke can enters the chamber of the spray gun and flows out from the air outlet, thereby detecting and locating the leakage position of the object to be tested.
[0011] In an exemplary embodiment of the smoke leak detector provided by the utility model, the can mouth of the smoke tank is connected to the connecting port of the smoke spray gun by threaded connection or snap connection, thereby sealingly mounting the smoke tank on the smoke spray gun.
[0012] The smoke spray gun and smoke leak detector provided by the utility model provide a technical solution with simple structure, easy manufacturing, convenient carrying and use, and low cost, which simplifies the operation process of detecting and locating the leakage position of the object to be tested, saves related detection and operation time, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The following drawings are only used to illustrate and explain the present invention, and do not limit the scope of the present invention.
[0014] Figure 1 A cross-sectional schematic diagram of a schematic embodiment of a smoke spray gun according to the utility model is shown.
[0015] Figure 2A schematic diagram of a ejector pin of a smoke spray gun according to an exemplary embodiment of the present invention is shown.
[0016] Figure 3 A cross-sectional schematic diagram shows the connection relationship between a smoke spray gun and a smoke tank according to an exemplary embodiment of the smoke leak detector of the utility model.
[0017] Figure 4 A three-dimensional schematic diagram of a schematic implementation of a smoke leak detector according to the utility model is shown.
[0018] Figure 5 A front view schematic diagram of a schematic implementation of a smoke leak detector according to the utility model is shown.
[0019] Description of symbols
[0020] 10 Smoke spray gun
[0021] 11 Gun body
[0022] 111 Hollow Chamber
[0023] 12 Control handle
[0024] 121 Battery compartment
[0025] 13 Air Inlet
[0026] 14 Air outlet
[0027] 15 Control switch
[0028] 16 Ports
[0029] 17 Axial-flow fans
[0030] 18 Ejector pin
[0031] 181 Needle Body
[0032] 183 Smoke Inlet
[0033] 185 Smoke outlet
[0034] 19 Air intake hood
[0035] 20 Smoke Can
[0036] 21. Tank mouth DETAILED DESCRIPTION
[0037] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings. The same reference numerals in the drawings represent components with the same structure or similar structures but the same functions.
[0038] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.
[0039] In order to make the drawings concise, each figure only schematically shows the parts related to the utility model, which do not represent the actual structure of the product.
[0040] Figure 1 A cross-sectional view of a schematic embodiment of a smoke spray gun according to the present invention is shown. Figure 2 FIG. 1 shows a schematic diagram of a ejector pin of a smoke spray gun according to an exemplary embodiment of the present invention. Figure 1 and 2 As shown, the smoke spray gun 10 includes a gun body 11 having a hollow chamber 111. An air inlet 13 and an air outlet 14 are respectively provided at both ends of the hollow chamber 111. The smoke spray gun 10 also includes a connection port 16 and a ejector pin 18. The connection port 16 is provided on the side wall of the hollow chamber 111. One end of the ejector pin passes through the connection port 16, preferably, does not exceed the plane where the connection port 16 is located. The other end of the ejector pin 18 is fixed to the side wall of the hollow chamber 111 along the radial direction of the hollow chamber 111. The ejector pin 18 and the gun body 11 can be fixedly connected to the side wall of the hollow chamber 111 by snapping. The gun body 11 can be made of a material such as plastic, but is not limited thereto, and can also be made of other materials such as metal. In order to enhance the durability of the ejector pin 18 and extend its service life, the ejector pin 18 can be made of stainless steel or any other suitable material.
[0041] The ejector pin 18 has a needle body 181, a smoke inlet hole 183 and a smoke outlet hole 185. The needle body 181 is in the shape of a thin tube and is a hollow cavity. The smoke inlet hole 183 is located at one end of the needle body 181 extending into the connection port 16. The smoke outlet hole 185 is opened on the side of the needle body 181 facing the air outlet 14, and the smoke entering the needle body of the ejector pin through the smoke inlet hole of the ejector pin can enter the hollow cavity of the gun body through the smoke outlet hole of the ejector pin, and can flow out of the smoke spray gun from the air outlet of the smoke spray gun.
[0042] In one exemplary embodiment of the smoke spray gun 10, Figure 1As shown, the smoke spray gun 10 also includes an axial flow fan 17, an air intake cover 19, a handle 12 and a control switch 15. The axial flow fan 17 is arranged in the air intake port 13. The air intake cover 19 is located at the air intake port 13 and covers the axial flow fan 17. The air intake cover 19 can be designed as a grille type or a mesh type, but is not limited thereto. The handle 12 is connected to the gun body 11, and a battery compartment 121 is provided inside the handle 12. The battery can be a lithium battery, or other suitable batteries can be used. The control switch 15 is connected to the battery compartment 121 to control the connection and / or disconnection between the battery in the battery compartment 121 and the axial flow fan 17. Thereby, when the axial flow fan 17 is working, the outside air is brought into the gun body through the air intake port, and the generated airflow is forced to make the air entering the gun body from the air intake port flow in the direction of the air outlet, so that the smoke entering the hollow chamber of the gun body from the smoke outlet hole of the ejector pin flows out of the smoke spray gun from the air outlet of the smoke spray gun.
[0043] In one example of the smoke spray gun 10, the handle 12 is formed integrally with the gun body 11. Thus, the structure of the smoke spray gun is simplified, the volume of the smoke spray gun is reduced, and the manufacture of the smoke spray gun is simplified and the manufacturing cost is reduced.
[0044] In one example of the smoke spray gun 10, the handle 12 is hingedly connected to the gun body 11 so as to be foldable with the gun body 11. Thereby, the volume of the smoke spray gun during carrying and transportation is further reduced, and it is convenient to use.
[0045] Figure 3 A schematic cross-sectional view showing the connection relationship between a smoke spray gun and a smoke tank according to an exemplary embodiment of a smoke leak detector of the utility model. Figure 4 A three-dimensional diagram of a schematic embodiment of a smoke leak detector according to the utility model is shown. Figure 5 FIG. 2 shows a front view of a schematic embodiment of a smoke leak detector according to the present utility model. Figure 3 , 4 As shown in Figures 5 and 6, in an exemplary embodiment of the smoke leak detector, the smoke leak detector includes a smoke spray gun 10 as mentioned above and a smoke can 20. The smoke can 20 has a can opening 21, and the can opening 21 can be sealed with a sealing layer formed by a material such as aluminum foil that is easy to puncture and then a cover can be installed. The can opening 21 is sealed and connected to the connection port 16 of the smoke spray gun 10, and the ejector pin 18 passes through the can opening 21 via the connection port 16. The smoke can 20 can be any form of smoke can that is commercially available and is suitable for matching with the connection port 16 of the smoke spray gun 10. The smoke can 20 is filled with smoke. In order to improve the detection, for example, in an environment with poor visibility, it is easier to see. Preferably, colored smoke can be used.
[0046] In an example of a smoke leak detector, the tank opening 21 of the smoke tank 20 is connected to the connection port 16 of the smoke spray gun 10 by threaded connection or snap connection, or any other suitable connection method, so that the smoke tank is sealed and installed on the smoke spray gun.
[0047] When the smoke tank is installed on the connection port 16 , the ejector pin pierces the tank opening 21 and then penetrates the smoke tank 20 , so that the smoke in the smoke tank 20 enters the chamber 111 of the spray gun 10 and flows out from the air outlet 14 , thereby detecting and locating the leakage position of the object to be tested.
[0048] The smoke can is tightly connected to the connection port 16 of the gun body 11 of the smoke spray gun 10 through the can mouth 21, and the ejector pin 18 inside the hollow chamber 111 of the smoke can pierces the sealing layer of the can mouth 21 of the smoke can, so that the colored smoke enters the needle body 181 through the smoke inlet hole 183 and enters the chamber 111 through the smoke outlet hole 185. The control switch 15 is turned on, and the battery supplies power to the axial flow fan 17. The axial flow fan 17 works and brings the outside air into the gun body through the air inlet 13. The pressure generated by the rotation of the axial flow fan 17 forces the smoke in the smoke can 20 to be ejected from the air outlet 14 through the chamber 111 and enter the air inlet of the automobile air filter, thereby checking and processing the leakage of the air filter parts caused by assembly. If the air filter parts leak, the colored smoke will flow out from the leak and can be seen by the naked eye.
[0049] The smoke spray gun and smoke leak detector of the utility model provide a technical solution with simple structure, easy manufacturing, convenient carrying and use, and low cost, which simplifies the operation process of detecting and locating the leakage position of the object to be tested, saves the relevant detection and operation time, and improves production efficiency.
[0050] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0051] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present utility model. They are not intended to limit the scope of protection of the present utility model. Any equivalent implementation scheme or changes that do not deviate from the technical spirit of the present utility model, such as combination, division or repetition of features, should be included in the scope of protection of the present utility model.
Claims
1. A smoke spray gun (10), comprising a gun body (11), which has a hollow chamber (111), and an air inlet (13) and an air outlet (14) are respectively formed at two ends of the hollow chamber (111); characterized in that: The smoke spray gun (10) further comprises: a connection port (16) opened on a side wall of the hollow chamber (111); A ejector pin (18), one end of which passes through the connection port (16) and the other end of which is fixed to the side wall of the hollow chamber (111) along the radial direction of the hollow chamber (111), the ejector pin (18) having: A needle body (181) is in the shape of a thin tube and has a hollow cavity. a smoke inlet hole (183) located at one end of the needle body (181) extending into the connection port (16), and A smoke outlet hole (185) is provided on a side of the needle body (181) facing the air outlet (14).
2. The smoke spray gun (10) according to claim 1, characterized in that: The smoke spray gun (10) further comprises: an axial flow fan (17) arranged in the air inlet (13); an air intake cover (19), which is located at the air intake port (13) and covers the axial flow fan (17); a handle (12) connected to the gun body (11); a battery compartment (121) is provided inside the handle (12); A control switch (15) is connected to the battery compartment (121) and is suitable for controlling the connection and / or disconnection between the battery in the battery compartment (121) and the axial flow fan (17).
3. The smoke spray gun (10) according to claim 2, characterized in that: The handle (12) and the gun body (11) are integrally formed.
4. The smoke spray gun (10) according to claim 2, characterized in that: The handle (12) is hingedly connected to the gun body (11) so as to be foldable with the gun body (11).
5. Smoke leak detector, characterized in that, The invention comprises a smoke spray gun (10) as claimed in claim 3 or 4 and a smoke can (20), wherein: The smoke canister (20) has a canister opening (21), the canister opening (21) is sealedly connected to the connection port (16), and the ejector pin (18) passes through the canister opening (21) via the connection port (16).
6. The smoke leak detector as claimed in claim 5, wherein the tank opening (21) is connected to the connecting port (16) by threaded connection or snap connection.