Angle throat pipe combined type airflow jet speed adjusting device

Abstract

The utility model discloses an angle throat pipe combined type air flow jet speed adjusting device, which relates to the field of throat pipes and comprises a throat pipe and a transmission adjusting structure, the transmission adjusting structure is fixedly connected to the outer side of the bottom of the throat pipe, the throat pipe comprises an upper-section throat pipe and a lower-section throat pipe, and the upper-section throat pipe and the lower-section throat pipe are rotatably connected. A Z-shaped rotating gap is formed between the upper-section throat pipe and the lower-section throat pipe, the upper-section throat pipe comprises an upper-section throat pipe body, an elbow air outlet and a gear ring, the elbow air outlet is formed in the top end of the upper-section throat pipe body, the gear ring is fixed to the outer wall of the bottom of the upper-section throat pipe body, and the lower-section throat pipe comprises a lower-section throat pipe body and an air inlet. According to the angle throat pipe combined type airflow jetting speed adjusting device, the elbow design is adopted at the top of the throat pipe and is different from the previous vertical design, the angle of jetted airflow can be changed through the throat pipe with the elbow design, and the upper section of the throat pipe can be driven to rotate under the driving of the transmission adjusting structure; therefore, the angle of the jetted air flow can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to a throat pipe field, concretely is a kind of angle throat pipe combination formula airflow muzzle velocity adjusting device. BACKGROUND

[0002] With the rapid progress of modern fluid mechanics theory and engineering technology, as a kind of vital fluid transmission device, throat pipe has shown its irreplaceable value in many high-tech and heavy industrial fields such as aerospace, energy chemical industry, environmental engineering. In the field of aerospace, throat pipe is used to accurately control the flow of propellant, to ensure the stable operation of rocket engine. These applications not only highlight the advanced nature and practicality of throat pipe technology, but also lay a solid foundation for its future development.

[0003] The existing throat pipe design, in most cases, adopts vertical angle layout. This design can play a good role in the conventional operation environment, but in some specific application scenarios, especially when the equipment needs to realize eccentric operation, its limitations are obvious. Specifically, when the equipment needs to generate a diagonal recoil force to push it to eccentric operation, the vertical throat pipe as a propulsion device is not up to the task. Due to its inherent vertical structure, it cannot directly provide diagonal propulsion, which leads to problems such as insufficient power and unstable operation of the equipment during eccentric operation. SUMMARY

[0004] The utility model aims at providing a kind of angle throat pipe combination formula airflow muzzle velocity adjusting device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of angle throat pipe combination formula airflow muzzle velocity adjusting device, including throat pipe and transmission adjustment structure, the transmission adjustment structure is fixedly connected in the throat pipe bottom outer side, the throat pipe includes upper section throat pipe and lower section throat pipe, the upper section throat pipe and the lower section throat pipe are rotatably connected, and the upper section throat pipe and the lower section throat pipe are formed with Z-shaped rotating gap.

[0006] Preferably, the upper section throat pipe includes upper section throat pipe main body, elbow gas outlet and gear ring, the elbow gas outlet is opened in the upper section throat pipe main body top end, and the gear ring is fixed in the upper section throat pipe main body bottom outer wall.

[0007] Preferably, the lower section throat pipe includes lower section throat pipe main body and gas inlet, the gas inlet is opened in the lower section throat pipe main body bottom end, and the elbow gas outlet and the gas inlet are mutually penetrated.

[0008] Preferably, the transmission adjustment structure comprises a main gear, a gear shift gear, a chain, a fixed frame, a first supporting rod and a second supporting rod, one end of the fixed frame is rotationally connected with one end of the second supporting rod, one end of the fixed frame is rotationally connected with one end of the first supporting rod, the gear shift gear is fixedly connected with the outer wall of the second supporting rod, the main gear is fixedly connected with the outer wall of the first supporting rod, and the chain is sleeved on the outer walls of the main gear and the gear shift gear.

[0009] Preferably, the pinion located at the rear side of the gear shift gear is in meshing with the gear ring.

[0010] Preferably, the transmission adjustment structure is fixedly connected with the throat pipe by being fixed on the outer side of the lower throat pipe body through the fixed frame.

[0011] Compared with the prior art, the angle throat pipe combined airflow muzzle velocity adjusting device has the advantages that:

[0012] The angle throat pipe combined airflow muzzle velocity adjusting device provided by the utility model adopts elbow design at the top of the throat pipe, which is different from the vertical design in the prior art, the throat pipe with the elbow design can change the angle of the sprayed airflow, and the upper throat pipe can be driven to rotate under the driving of the transmission adjustment structure, so that the angle of the sprayed airflow is adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further described below in combination with the drawings:

[0014] Figure 1 It is angle throat pipe combined airflow muzzle velocity adjusting device schematic view of the utility model;

[0015] Figure 2 It is angle throat pipe combined airflow muzzle velocity adjusting device section of the utility model Figure 1 ;

[0016] Figure 3 It is angle throat pipe combined airflow muzzle velocity adjusting device section of the utility model Figure 2 ;

[0017] Figure 4 It is angle throat pipe combined airflow muzzle velocity adjusting device transmission adjustment structure schematic view of the utility model;

[0018] Figure 5 It is angle throat pipe combined airflow muzzle velocity adjusting device detail view of the utility model.

[0019] As shown in the figure: 1, throat pipe; 11, upper section throat pipe; 111, upper section throat pipe main body; 112, elbow air outlet; 113, gear ring; 12, lower section throat pipe; 121, lower section throat pipe main body; 122, air inlet; 13, rotating gap; 2, transmission adjustment structure; 21, main gear; 22, variable speed gear; 23, chain; 24, fixed frame; 25, first support rod; 26, second support rod. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail in an exemplary manner in conjunction with the accompanying drawings.

[0021] It should be noted that in the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0022] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0023] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. However, it is noted that direct connection means that the connection between the two main bodies does not form a connection relationship through an excessive structure, but only connects to form a whole through a transmission structure. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0025] Please refer to Figures 1 to 5 The utility model provides a technical scheme: a kind of angle throat pipe combined type airflow muzzle velocity adjusting device, including throat pipe 1 and transmission adjustment structure 2, transmission adjustment structure 2 is fixedly connected in throat pipe 1 bottom outer side, throat pipe 1 includes upper section throat pipe 11 and lower section throat pipe 12, upper section throat pipe 11 and lower section throat pipe 12 are rotationally connected, and Z-shaped rotation gap 13 is formed between upper section throat pipe 11 and lower section throat pipe 12;

[0026] The throat pipe 1 top adopts elbow design, which is different from the vertical design of the past, and the throat pipe 1 with elbow design can change the angle of the ejected airflow, and under the drive of the transmission adjustment structure 2, the upper section throat pipe 11 can be rotated to adjust the angle of the ejected airflow.

[0027] The upper section throat pipe 11 includes an upper section throat pipe body 111, an elbow air outlet 112, and a gear ring 113. The elbow air outlet 112 is opened at the top end of the upper section throat pipe body 111, and the gear ring 113 is fixed to the bottom outer wall of the upper section throat pipe body 111.

[0028] The bending angle of the elbow air outlet 112 can be limited according to actual use, and can be designed as 30°, 45°, and 60° for use.

[0029] The lower section throat pipe 12 includes a lower section throat pipe body 121 and an air inlet 122. The air inlet 122 is opened at the bottom end of the lower section throat pipe body 121, and the elbow air outlet 112 and the air inlet 122 are mutually penetrated.

[0030] When in use, the ejected airflow enters the inside of the throat pipe 1 through the air inlet 122 and is discharged outward through the elbow air outlet 112. The design of the elbow air outlet 112 can change the angle of the ejected airflow to control the angle of propulsion.

[0031] The transmission adjusting structure 2 comprises a main gear 21, a gear shift gear 22, a chain 23, a fixed frame 24, a first supporting rod 25 and a second supporting rod 26, one side of the top end of the fixed frame 24 is rotationally connected with one end of the second supporting rod 26, one side of the bottom end of the fixed frame 24 is rotationally connected with one end of the first supporting rod 25, the gear shift gear 22 is fixedly connected to the outer wall of the second supporting rod 26, the main gear 21 is fixedly connected to the outer wall of the first supporting rod 25, and the chain 23 is sleeved on the outer walls of the main gear 21 and the gear shift gear 22;

[0032] The pinion in the gear shift gear 22 located at the rear side is in mesh with the gear ring 113;

[0033] The fixed frame 24 is fixed outside the lower section throat pipe body 121 to realize the fixed connection of the transmission adjusting structure 2 and the throat pipe 1;

[0034] When the spray angle of the elbow gas outlet 112 needs to be adjusted, the first supporting rod 25 is driven to rotate by using the external stepping motor, the first supporting rod 25 drives the main gear 21 to rotate, the main gear 21 drives the gear shift gear 22 to rotate through the chain 23, synchronously, the pinion in the gear shift gear 22 rotates to drive the gear ring 113 to displace, the gear ring 113 drives the upper section throat pipe body 111 to rotate, so that the angle of the elbow gas outlet 112 is adjusted;

[0035] When the upper section throat pipe body 111 rotates, the lower section throat pipe body 121 remains stationary, and the Z-shaped rotating gap 13 formed between the upper section throat pipe 11 and the lower section throat pipe 12 has two bending sections, so that the possibility of gas leakage from the gap is reduced;

[0036] Those skilled in the art should understand that the discussion of the above any embodiment is only exemplary, and is not intended to imply that the scope of the utility model includes the claims limited to these examples; under the idea of the utility model, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the utility model as described above, which are not provided in details for the sake of brevity.

[0037] The utility model aims at covering all such alternatives, modifications and variations falling within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement and the like made in the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An angle throat combined airflow and velocity adjusting device comprising a throat (1) and a transmission adjusting structure (2), characterized in that: The transmission adjusting structure (2) is fixedly connected outside the bottom of the throat pipe (1), the throat pipe (1) comprises an upper throat pipe (11) and a lower throat pipe (12), the upper throat pipe (11) and the lower throat pipe (12) are rotatably connected, and a Z-shaped rotating gap (13) is formed between the upper throat pipe (11) and the lower throat pipe (12).

2. A combined angle throat nozzle device for adjusting the flow velocity of a fluid according to claim 1, wherein: The upper throat pipe (11) comprises an upper throat pipe body (111), an elbow air outlet (112) and a gear ring (113), the elbow air outlet (112) is arranged at the top end of the upper throat pipe body (111), and the gear ring (113) is fixed to the bottom outer wall of the upper throat pipe body (111).

3. A combined angle throat nozzle device for adjusting the flow velocity of a fluid according to claim 2, wherein: The lower throat pipe (12) comprises a lower throat pipe body (121) and an air inlet (122), the air inlet (122) is arranged at the bottom end of the lower throat pipe body (121), and the elbow air outlet (112) and the air inlet (122) are mutually penetrated.

4. A combined angle throat nozzle flow velocity adjusting device according to claim 3, characterized in that: The transmission adjusting structure (2) comprises a main gear (21), a gear shift gear (22), a chain (23), a fixed frame (24), a first supporting rod (25) and a second supporting rod (26), one end of the second supporting rod (26) is rotatably connected to one side of the top end of the fixed frame (24), one end of the first supporting rod (25) is rotatably connected to one side of the bottom end of the fixed frame (24), the gear shift gear (22) is fixedly connected to the outer wall of the second supporting rod (26), the main gear (21) is fixedly connected to the outer wall of the first supporting rod (25), and the chain (23) is sleeved on the outer walls of the main gear (21) and the gear shift gear (22).

5. The angled throat combined airflow velocity regulating device according to claim 4, characterized in that: The small gear at the rear side of the gear shift gear (22) is in meshing connection with the gear ring (113).

6. A combined angle throat nozzle flow velocity adjusting device according to claim 5, characterized in that: The fixed frame (24) is fixed outside the lower throat pipe body (121), so that the transmission adjusting structure (2) is fixedly connected with the throat pipe (1).

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