Spraying device for civil aviation runway maintenance
By introducing antifreeze nozzle components into the spraying device, and utilizing the combination of a high-elasticity impact plate and a pressure spring, the problem of nozzle freezing at low temperatures was solved, enabling normal spraying of de-icing agents and improving the reliability and efficiency of the spraying device.
Patent Information
- Application Number
- CN202520133029.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-21
AI Technical Summary
The nozzles of existing civil aviation runway maintenance spraying devices are prone to freezing in low-temperature environments, which can cause nozzle blockage and affect spraying effectiveness.
An antifreeze nozzle assembly was designed, including a fixed housing, a nozzle cover, an anti-clogging bushing, a needle-shaped anti-clogging rod, and a high-elasticity impact plate. The high-elasticity impact plate opens the nozzle under the pressure of the de-icing agent, and the nozzle is automatically closed by a pressure spring after spraying to prevent the de-icing agent from freezing.
It effectively prevents the nozzles from freezing in low-temperature environments, ensuring the normal spraying of de-icing agents and improving the reliability and efficiency of the equipment.
Smart Images
Figure CN223738539U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of road maintenance, and particularly relates to a spraying device for civil aviation runway maintenance. BACKGROUND
[0002] With the continuous development of science and technology, the travel tools of human beings gradually develop from traditional land travel and sea travel to sky flight. In 1903, the first aircraft was invented. In order to ensure the safety of the aircraft during takeoff or landing, the aircraft runway not only needs a certain length, but also needs to be kept clean at all times. Especially when the temperature is below zero, the runway needs to be kept from icing at all times. Therefore, when the temperature is too low or it is snowing, a corresponding deicing device is usually used to clean the ice and snow layer. At present, the most commonly used device is a spraying device for civil aviation runway maintenance to spray snow-melting agent.
[0003] The existing spraying device for civil aviation runway maintenance is composed of a deicing vehicle and a snow-melting agent deicing tank. When spraying is needed, a screw is used to fix a shunt support on the deicing vehicle, a pipeline is used to connect the water inlet of the shunt support with the water outlet of the snow-melting agent deicing tank, and then a switch in the cab is used to control the start and stop of the snow-melting agent deicing tank.
[0004] During deicing operation, residual liquid is inevitably present in the nozzle of the spray head. When the temperature is low, the residual liquid often freezes. Therefore, before work, the spray head needs to be warmed up in a normal temperature room to remove ice, and then spraying operation is performed. UTILITY MODEL CONTENTS
[0005] The technical problem to be solved by the utility model is that the spray head of the existing spraying device for civil aviation runway maintenance does not have a structure for preventing the nozzle from freezing.
[0006] To solve the above technical problem, the utility model provides a technical scheme, that is, a spraying device for civil aviation runway maintenance, which comprises a deicing vehicle, a snow-melting agent deicing tank located above the deicing vehicle, and a shunt support connected to the liquid outlet of the snow-melting agent deicing tank.
[0007] The anti-freezing spray head assembly comprises a fixed shell sleeved above the liquid outlet of the shunt support, a nozzle cover sleeved above the fixed shell, an anti-blocking shaft sleeve welded to the inner wall of the fixed shell through a plurality of supporting rods, a needle-shaped anti-blocking rod passing through the end of the through hole of the anti-blocking shaft sleeve, a high-elasticity impact pressing plate passing through the sidewall of the anti-blocking shaft sleeve and the sidewall of the needle-shaped anti-blocking rod, and a pressure spring located at the bottom surface of the anti-blocking shaft sleeve and the needle-shaped anti-blocking rod.
[0008] As an improvement, the high-elasticity impact pressing plate is connected to the sidewall of the anti-blocking shaft sleeve through a pin structure, and the fixed shell is connected to the nozzle cover through a threaded structure.
[0009] As improvement, the shunt bracket is connected with the deicing vehicle through bolt structure, and a plurality of auxiliary fixing sleeves are welded above the shunt bracket.
[0010] As improvement, the high-elasticity impact pressing plate is composed of two semicircular mountain-shaped pressing plates.
[0011] As improvement, the bottom surface of the anti-blocking shaft sleeve is below the fixed shell threaded hole.
[0012] As improvement, the needle-shaped anti-blocking rod is detachable, and the needle size of the needle-shaped anti-blocking rod corresponds to the nozzle diameter of the nozzle cover.
[0013] The utility model discloses compared with prior art has the advantages of: the device installs needle-shaped anti-blocking rod above the nozzle, and the outer wall end of needle-shaped anti-blocking rod has high-elasticity impact pressing plate similar to the wuqiaoban, when the snow-melting agent is out, will press down high-elasticity impact pressing plate, thereby making needle-shaped anti-blocking rod lift, open the nozzle, guarantee the normal ejection of nozzle, and end the spraying, then will be through pressure spring and press needle-shaped anti-blocking rod back to the nozzle of nozzle cover, like this close nozzle, prevent the snow-melting agent from being frozen. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a total structure diagram of the utility model discloses a kind of civil aviation runway maintenance's spraying device.
[0015] Figure 2 It is the sectional view of the utility model discloses a kind of civil aviation runway maintenance's spraying device's shunt bracket.
[0016] Figure 3 It is the sectional view of the utility model discloses a kind of civil aviation runway maintenance's spraying device's anti-freezing spray head assembly.
[0017] Figure 4 It is the explosion view of the utility model discloses a kind of civil aviation runway maintenance's spraying device's anti-freezing spray head assembly.
[0018] As shown in the drawing: 1, deicing vehicle;2, snow-melting agent deicing tank;3, shunt bracket;31, auxiliary fixing sleeve;4, anti-freezing spray head assembly;41, fixed shell;42, nozzle cover;43, anti-blocking shaft sleeve;44, needle-shaped anti-blocking rod;45, high-elasticity impact pressing plate;46, pressure spring. DETAILED DESCRIPTION
[0019] The utility model makes further detailed description in combination with the drawing.
[0020] As the description accompanying Figure 1 , 2As shown, including deicing vehicle 1, located above the deicing vehicle 1 snow-melting tank 2 and connected to the snow-melting tank 2 outflow branch support 3, the branch support 3 is connected to the deicing vehicle 1 through bolt structure, and the upper part of the branch support 3 is welded with several auxiliary fixing sleeves 31, and the rear of the deicing vehicle 1 is welded with a fixed rod for fixing the branch support 3, the branch support 3 is connected to the fixed rod at the rear of the deicing vehicle 1 by screws, then the outflow port of the snow-melting tank 2 and the inflow port of the branch support 3 are connected by using a right-angle elbow, in order to prevent the branch pipe of the branch support 3 from bending due to gravity, an auxiliary fixing sleeve 31 is sleeved on the branch pipe at a distance, and the auxiliary fixing sleeves 31 are connected to the support fixing rod of the branch support 3 by using steel wires or connecting rods.
[0021] As shown in the description Figure 1 , 3 , 4, the outflow port of the branch support 3 is sleeved with a freeze-proof spray head assembly 4 connected by threads; the freeze-proof spray head assembly 4 includes a fixed shell 41 sleeved above the outflow port of the branch support 3, a nozzle cover 42 sleeved above the fixed shell 41, a anti-blocking shaft sleeve 43 welded with the inner wall of the fixed shell 41 through several support rods, a needle-shaped anti-blocking rod 44 passing through the end of the anti-blocking shaft sleeve 43, a high-elasticity impact pressing plate 45 passing through the side wall of the anti-blocking shaft sleeve 43 and the side wall of the needle-shaped anti-blocking rod 44, and a pressure spring 46 located at the bottom surface of the anti-blocking shaft sleeve 43 and the needle-shaped anti-blocking rod 44; the high-elasticity impact pressing plate 45 is connected to the side wall of the anti-blocking shaft sleeve 43 through a pin structure, and the fixed shell 41 is connected to the nozzle cover 42 through a threaded structure, the high-elasticity impact pressing plate 45 is composed of two semicircular arc-shaped mountain-shaped pressing plates; the needle-shaped anti-blocking rod 44 is a detachable structure, and the needle size of the needle-shaped anti-blocking rod 44 corresponds to the diameter of the nozzle of the nozzle cover 42, the pressure spring 46 and the needle-shaped anti-blocking rod 44 are sequentially placed in the cavity of the anti-blocking shaft sleeve 43, the grooves on both sides of the needle-shaped anti-blocking rod 44 are aligned with the side grooves of the anti-blocking shaft sleeve 43, then the center plate of the half-mountain-shaped pressing plate of the high-elasticity impact pressing plate 45 is placed in the side groove of the anti-blocking shaft sleeve 43, and the pins on both sides of the center plate are clamped into the side wall pin holes of the side groove of the anti-blocking shaft sleeve 43 for fixation, and the top end of the center plate is clamped in the side groove of the needle-shaped anti-blocking rod 44.
[0022] The bottom surface of the anti-blocking shaft sleeve 43 is located below the threaded hole of the fixed shell 41, the needle-shaped anti-blocking rod 44 is a detachable structure, the needle head size of the needle-shaped anti-blocking rod 44 corresponds to the nozzle diameter of the nozzle cover 42, the bottom surface end of the anti-blocking shaft sleeve 43 is inserted into the outer threaded end of the fixed shell 41, the opening support rod connecting end of the anti-blocking shaft sleeve 43 is welded on the outer threaded end of the fixed shell 41 by using a welding machine, in order to ensure that the anti-blocking shaft sleeve 43 does not block the water outlet of the shunt support 3, the bottom surface end of the anti-blocking shaft sleeve 43 is located below the inner thread of the fixed shell 41, so as to ensure the normal outflow of the snow melting agent, and then the threaded hole end of the nozzle cover 42 is screwed on the outer thread of the fixed shell 41.
[0023] In the specific implementation, the deicing vehicle 1 is started, and after it is opened on the runway, the liquid outlet switch of the snow melting agent deicing tank 2 is started, so that the high-pressure snow melting agent enters the shunt support 3 and the anti-freezing spray head assembly 4. Under the impact of the high-pressure snow melting agent, the outer wall arc end of the high-elastic impact pressing plate 45 will be deformed and pressed down, and the center rod will be upwardly offset around the pin, so that the needle-shaped anti-blocking rod 44 is lifted, the nozzle of the nozzle cover 42 is opened, and the normal spraying of the snow melting agent is ensured. After the spraying is completed, the needle-shaped anti-blocking rod 44 is automatically reset under the pressure of the pressure spring 46, the nozzle of the nozzle cover 42 is closed, and the nozzle is prevented from being frozen.
[0024] The above describes the utility model and its implementation, which is not limited, and the drawings only show one of the embodiments of the utility model, and the actual structure is not limited. In summary, if a person skilled in the art is inspired, without departing from the purpose of the utility model, without creative design, similar structure and embodiments of the technical scheme, which should belong to the protection scope of the utility model.
Claims
1. A spraying device for civil aviation runway maintenance, comprising a deicing vehicle (1), a snow-melting agent deicing tank (2) located above the deicing vehicle (1), and a shunt support (3) connected to a liquid outlet of the snow-melting agent deicing tank (2), characterized in that: The liquid outlet of the shunt bracket (3) is sleeved with an anti-freezing nozzle assembly (4) connected through threads; The anti-freezing nozzle assembly (4) comprises a fixed shell (41) sleeved above the liquid outlet of the shunt bracket (3), a nozzle cover (42) sleeved above the fixed shell (41), an anti-blocking shaft sleeve (43) welded with the inner wall of the fixed shell (41) through a plurality of supporting rods, a needle-shaped anti-blocking rod (44) passing through the end of the through hole of the anti-blocking shaft sleeve (43), a high-elasticity impact pressing plate (45) passing through the side wall of the anti-blocking shaft sleeve (43) and the side wall of the needle-shaped anti-blocking rod (44), and a pressure spring (46) located at the bottom surface of the anti-blocking shaft sleeve (43) and the needle-shaped anti-blocking rod (44).
2. A spraying device for maintenance of a civil aviation runway according to claim 1, characterized in that: The high-elasticity impact pressing plate (45) is connected with the side wall of the side groove of the anti-blocking shaft sleeve (43) through a pin structure, and the fixed shell (41) is connected with the nozzle cover (42) through a thread structure.
3. A spraying device for maintenance of a civil aviation runway according to claim 1, characterized in that: The shunt bracket (3) is connected with the deicing vehicle (1) through a bolt structure, and a plurality of auxiliary fixing sleeves (31) are welded above the shunt bracket (3).
4. A spraying device for maintenance of a civil aviation runway according to claim 1, characterized in that: The high-elasticity impact pressing plate (45) is composed of two half-circular arc mountain-shaped pressing plates.
5. A spraying device for maintenance of a civil aviation runway according to claim 1, characterized in that: The bottom surface of the anti-blocking shaft sleeve (43) is located below the threaded hole of the fixed shell (41).
6. A spraying device for maintenance of a civil aviation runway according to claim 1, characterized in that: The needle-shaped anti-blocking rod (44) is a detachable structure, and the needle size of the needle-shaped anti-blocking rod (44) corresponds to the nozzle diameter of the nozzle cover (42).