Flow guiding device and engine test bench

Abstract

The utility model discloses a flow guiding device and an engine test bench. The flow guiding device comprises a flexible pipe and a support. The support comprises supporting mechanisms, rotation adjusting mechanisms and a first angle adjusting mechanism, at least two supporting mechanisms are fixedly connected with the hose, at least one end of the hose is correspondingly connected with one rotation adjusting mechanism, the first angle adjusting mechanism is connected to the end of the supporting mechanism, and at least one supporting mechanism is a telescopic mechanism. In this way, when fluid flows into the hose, the hose cannot shake, meanwhile, the rotary adjusting mechanism can prevent the hose from torsional deformation, and therefore the hose can be prevented from being damaged. In addition, the angle of the hose relative to the fixed base device can be changed, the telescopic mechanism can stretch out and draw back to adjust the length of the hose, and therefore the shape of the hose can be adjusted more conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile engine testing, in particular to a flow guide device and an engine test bench. Background Art

[0002] During the production process of automobile engines, the assembly process of the engine's air intake system and ventilation and cooling system needs to be tested. During the test, an engine test bench is required. The engine test bench includes a relatively long ventilation hose.

[0003] In the prior art, the ventilation hose is hung on the top of the laboratory.

[0004] When the ventilation hose is connected with pressurized gas inside, the ventilation hose will be shaken, so the ventilation hose itself will be destroyed easily. In addition, the form of the ventilation hose is inconvenient to adjust, which has reduced the efficiency of the test. Utility Model Content

[0005] In view of this, the present invention provides a flow guide device and an engine test bench. Since the flow guide device has a bracket, it can prevent the hose from shaking, thereby avoiding damage to the hose itself. In addition, the shape of the hose is relatively easy to adjust, thereby improving the efficiency of the test.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] In a first aspect, the present invention discloses a flow diversion device comprising: a hose and a bracket. The bracket comprises a support mechanism, a rotation adjustment mechanism, and a first angle adjustment mechanism. At least two of the support mechanisms are fixedly connected to the hose. At least one end of the hose is connected to a corresponding rotation adjustment mechanism. The first angle adjustment mechanism is connected to an end of the support mechanism. At least one of the support mechanisms is a telescopic mechanism.

[0008] Optionally, the bracket includes two rotation adjustment mechanisms, and the two rotation adjustment mechanisms are separately connected to two ends of the hose.

[0009] Optionally, the rotation adjustment mechanism includes a fixed ring, a rotating ring, a rotation connection assembly and a rotation elastic member;

[0010] One end of the rotating ring is rotatably connected to the fixed ring, and the other end is fixedly connected to the hose;

[0011] The fixed ring is provided with a first rotary connecting hole, the rotating ring is provided with a second rotary connecting hole, the rotary connecting component is passed through the rotary elastic member, the first rotary connecting hole and the second rotary connecting hole to connect the rotating ring to the fixed ring, and the rotary connecting component is used to adjust the deformation of the rotary elastic member.

[0012] Optionally, the first angle adjustment mechanism includes a first connecting component and a first angle adjustment elastic member, the first connecting component is passed through the first angle adjustment elastic member and the supporting mechanism, and the first connecting component is used to adjust the deformation of the first angle adjustment elastic member.

[0013] Optionally, the bracket further includes a second angle adjustment mechanism, and the second angle adjustment mechanism is connected to the rotation adjustment mechanism.

[0014] Optionally, the second angle adjustment mechanism includes a fixed seat, a second connecting component and a rotating hanger, and the second connecting component is passed through the fixed seat and the rotating hanger to adjust the pressure between the fixed seat and the rotating hanger.

[0015] Optionally, the fixing seat is provided with a rotation groove, and one end of the rotating hanger is accommodated in the rotation groove;

[0016] The second connecting assembly includes a third clamping bolt, a first clamping slider and a first handle. The third clamping bolt is passed through the fixed seat and the rotating hanger and is threadedly connected to the first clamping slider at one end. The first handle is fixedly connected to the end of the third clamping bolt away from the first clamping slider.

[0017] Optionally, the telescopic mechanism includes at least two telescopic joints and a locking adjustment member, the at least two telescopic joints are sleeved with each other, and the locking adjustment member is connected to the telescopic joints;

[0018] The locking degree adjustment member includes a second handle, a fourth clamping bolt, a second clamping slider and a telescopic adjustment elastic member. The second clamping slider is located at the innermost telescopic joint. The fourth clamping bolt passes through the innermost telescopic joint and is connected to the second clamping slider. The telescopic adjustment elastic member is located on the side of the second clamping slider away from the fourth clamping bolt. The second handle is fixedly connected to the end of the fourth clamping bolt away from the second clamping slider.

[0019] Optionally, the flow guiding device further includes a fluid pressure regulating valve and a flow meter, wherein the fluid pressure regulating valve is arranged at one end of the hose, and the flow meter is arranged at the inlet end of the hose for controlling the opening of the fluid pressure regulating valve.

[0020] In a second aspect, the utility model discloses an engine test bench, which includes the flow guide device described in any one of the first aspects above, and one end of the hose is used to be connected to the intake air filter of the engine to be tested.

[0021] Compared with the prior art, the flow guide device and engine test bench described in the present invention have the following advantages:

[0022] In the embodiment of the present application, the flow-guiding device includes a hose and a bracket. The bracket includes a support mechanism, and at least two support mechanisms are fixedly connected to the hose. Thus, the support mechanism can provide support force to the hose, thereby limiting the spatial position of the hose. Furthermore, when fluid flows through the hose, the hose will not shake or collide with other obstacles, thereby preventing damage to the hose.

[0023] Next, because the bracket includes a rotation adjustment mechanism, and at least one end of the hose is correspondingly connected to a rotation adjustment mechanism, at least one end of the hose can be rotatably connected to the fixed base device. This means that the hose has a certain degree of rotational freedom relative to the fixed base device. Consequently, when the hose is twisted, the rotation adjustment mechanism can restore it to a non-twisted state, facilitating adjustment of the hose's shape. Furthermore, when the rotation adjustment mechanism is a free rotation adjustment mechanism, the hose can rotate freely relative to the fixed base device. This means that there is no rotational torque between the hose and the fixed base device, and thus the hose will not experience torsional deformation during use, thereby preventing damage to the hose due to torsional deformation.

[0024] Next, because the bracket includes a first angle adjustment mechanism connected to the end of the support mechanism, the support mechanism can rotate about the first angle adjustment mechanism, thereby changing the angle of the support mechanism relative to the fixed base device. Furthermore, because the support mechanism is fixedly connected to the hose, the hose can be rotated by the support mechanism, thereby changing the angle of the hose relative to the fixed base device, thereby facilitating adjustment of the hose's shape.

[0025] Next, because the bracket includes a support mechanism, and at least one of the support mechanisms is a telescopic mechanism, the length of the telescopic mechanism can be adjusted. Furthermore, because the support mechanism is fixedly connected to the hose, the telescopic mechanism can also be fixedly connected to the hose. Thus, when the telescopic mechanism is extended or retracted, it can simultaneously extend or retract the hose, thereby adjusting the length of the hose and facilitating adjustment of the hose's shape.

[0026] In summary, when the flow guide device is used, the hose itself can be prevented from shaking, thereby preventing the hose itself from being damaged. In addition, the shape of the hose can be adjusted more conveniently.

[0027] The engine test bench described in the present invention has the same advantages as the prior art and the aforementioned flow guide device, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 Schematic diagram of the structure of a flow guide device in this embodiment;

[0030] Figure 2 yes Figure 1 Exploded diagram of the rotary adjustment mechanism;

[0031] Figure 3 yes Figure 2 A schematic structural diagram of the rotary connection component in FIG.

[0032] Figure 4 yes Figure 1 A schematic structural diagram of the first angle adjustment mechanism in FIG.

[0033] Figure 5 yes Figure 4 A schematic structural diagram of the first connection component in FIG;

[0034] Figure 6 yes Figure 1 A schematic structural diagram of the second angle adjustment mechanism in FIG.

[0035] Figure 7 yes Figure 6 A schematic structural diagram of the second connection component in FIG;

[0036] Figure 8 yes Figure 1 Structural diagram of the telescopic mechanism in FIG.

[0037] Figure 9 yes Figure 8 A schematic structural diagram of the locking adjustment member in FIG.

[0038] Figure 10 yes Figure 1 A schematic structural diagram of a fluid pressure regulating valve;

[0039] Figure 11 yes Figure 10 Exploded diagram of the fluid pressure regulating valve in Figure 1.

[0040] Description of reference numerals:

[0041] 1-hose, 2-bracket, 21-support mechanism, 22-rotation adjustment mechanism, 221-fixing ring, 2211-first rotation connection hole, 222-rotating ring, 2221-second rotation connection hole, 223-rotation connection assembly, 2231-first clamping bolt, 2232-first nut, 224-rotation elastic member, 23-first angle adjustment mechanism, 231-first connection assembly, 2311-second clamping bolt, 2312-second nut, 232-first angle adjustment elastic member, 24-second angle adjustment mechanism, 241-fixing seat, 2411-rotation groove, 242 -Second connecting assembly, 2421-third clamping bolt, 2422-first clamping slider, 2423-first handle, 243-rotating pendant, 25-telescopic mechanism, 251-telescopic joint, 252-locking adjustment member, 2521-second handle, 2522-fourth clamping bolt, 2523-second clamping slider, 2524-telescopic adjustment elastic member, 3-fluid pressure regulating valve, 31-electric valve bracket, 32-sealing ring seat, 33-stepping motor, 34-disc butterfly, 35-reset spring, 36-sealing ring, 37-rotating shaft, 38-limiting upper cover, 100-flow guide device. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0043] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, the term "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0044] It should be understood that references throughout this specification to "one embodiment" mean that a particular feature, structure, or characteristic associated with that embodiment is included in at least one embodiment of the present invention. Therefore, the appearance of "in one embodiment" throughout this specification does not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0045] The following describes in detail a flow guide device 100 and an engine test bench provided by the present invention by listing specific embodiments.

[0046] Figure 1 Schematic diagram of the structure of a flow guiding device 100 in this embodiment.

[0047] See also Figure 1 The flow guide device 100 includes a hose 1 and a bracket 2. The bracket 2 includes a support mechanism 21, a rotation adjustment mechanism 22, and a first angle adjustment mechanism 23. At least two support mechanisms 21 are fixedly connected to the hose 1. At least one end of the hose 1 is connected to a corresponding rotation adjustment mechanism 22. The first angle adjustment mechanism 23 is connected to the end of the support mechanism 21. At least one support mechanism 21 is a telescopic mechanism 25.

[0048] In the embodiment of the present application, the flow guide device 100 includes a hose 1 and a bracket 2. The bracket 2 includes a support mechanism 21, and at least two support mechanisms 21 are fixedly connected to the hose 1. The support mechanisms 21 provide support to the hose 1, thereby limiting the spatial position of the hose 1. Consequently, when fluid flows through the hose 1, the hose 1 does not shake or collide with other obstacles, thereby preventing damage to the hose 1.

[0049] Next, because the bracket 2 includes a rotation adjustment mechanism 22, and at least one end of the hose 1 is correspondingly connected to a rotation adjustment mechanism 22, at least one end of the hose 1 can be rotatably connected to the fixed base device. This means that the hose 1 has a certain degree of rotational freedom relative to the fixed base device. Consequently, when the hose 1 is twisted, the rotation adjustment mechanism 22 can restore the hose 1 to a non-twisted state, thereby facilitating adjustment of the hose 1's shape. Furthermore, when the rotation adjustment mechanism 22 is a free rotation adjustment mechanism 22, the hose 1 can rotate freely relative to the fixed base device. This means that there is no rotational torque between the hose 1 and the fixed base device, and thus the hose 1 will not experience torsional deformation during use, thereby preventing damage to the hose 1 due to torsional deformation.

[0050] Next, because the bracket 2 includes a first angle adjustment mechanism 23 connected to the end of the support mechanism 21, the support mechanism 21 can rotate about the first angle adjustment mechanism 23, thereby changing the angle of the support mechanism 21 relative to the fixed base. Furthermore, because the support mechanism 21 is fixedly connected to the hose 1, the hose 1 can be rotated by the support mechanism 21, thereby changing the angle of the hose 1 relative to the fixed base, thereby facilitating adjustment of the shape of the hose 1.

[0051] Next, since the bracket 2 includes support mechanisms 21, and at least one of the support mechanisms 21 is a telescopic mechanism 25, the length of the telescopic mechanism 25 can be adjusted. Furthermore, since the support mechanism 21 is fixedly connected to the hose 1, the telescopic mechanism 25 can also be fixedly connected to the hose 1. Thus, when the telescopic mechanism 25 is extended or retracted, it can simultaneously extend or retract the hose 1, thereby adjusting the length of the hose 1 and facilitating adjustment of the hose 1's shape.

[0052] In summary, when the flow guiding device 100 is used, the hose 1 itself can be prevented from shaking, thereby preventing the hose 1 itself from being damaged. In addition, the shape of the hose 1 can be adjusted more conveniently.

[0053] It should be noted that the above-mentioned hose 1 refers to a tube whose shape can change, and can be a plastic tube, a rubber tube, or a hose 1 made of other materials. The embodiments of the present application do not limit this.

[0054] It should also be noted that the support mechanism 21 and the hose 1 may be fixedly connected by bonding, binding, or other connection methods, which is not limited in the embodiment of the present application.

[0055] It should also be noted that the above-mentioned flow guiding device 100 can be used to make the fluid flow in a directional manner therein. The fluid can be gas or liquid with different flow rates, which is not limited in the embodiment of the present application.

[0056] Alternatively, in some embodiments, see Figure 1 and Figure 2 The bracket 2 includes two rotation adjustment mechanisms 22, and the two rotation adjustment mechanisms 22 are separately connected to the two ends of the hose 1.

[0057] In the embodiment of the present application, the swivel adjustment mechanism 22 enables the hose 1 to be rotatably connected to the fixed base device, that is, the hose 1 has a certain degree of rotational freedom relative to the fixed base. Therefore, when the hose 1 is twisted, the swivel adjustment mechanism 22 can restore the hose 1 to a non-twisted state, thereby facilitating adjustment of the shape of the hose 1. When both ends of the hose 1 are connected to separate swivel adjustment mechanisms 22, the rotational freedom of the hose 1 is further enhanced, making the hose 1 less susceptible to torsional deformation. Even if the hose 1 is twisted, it can quickly return to a non-twisted state, thereby further facilitating adjustment of the shape of the hose 1.

[0058] Furthermore, when the rotation adjustment mechanism 22 is a free rotation adjustment mechanism 22, the hose 1 can rotate freely relative to the fixed base device, that is, there is no rotational torque between the hose 1 and the fixed base device, and thus the hose 1 will not be torsional deformed during use, thereby preventing the hose 1 from being damaged due to torsional deformation.

[0059] Alternatively, in some embodiments, see Figure 1 、 Figure 2 and Figure 3 The rotation adjustment mechanism 22 includes a fixed ring 221, a rotating ring 222, a rotating connection assembly 223, and a rotating elastic member 224. One end of the rotating ring 222 is rotationally connected to the fixed ring 221, and the other end is fixedly connected to the hose 1. The fixed ring 221 is provided with a first rotating connection hole 2211, and the rotating ring 222 is provided with a second rotating connection hole 2221. The rotating connection assembly 223 is inserted through the rotating elastic member 224, the first rotating connection hole 2211, and the second rotating connection hole 2221 to connect the rotating ring 222 to the fixed ring 221. The rotating connection assembly 223 is used to adjust the deformation of the rotating elastic member 224.

[0060] In the embodiment of the present application, since one end of the rotating ring 222 is rotatably connected to the fixed ring 221 and the other end is fixedly connected to the hose 1, the hose 1 can freely rotate relative to the fixed ring 221. The fixed ring 221 is fixedly connected to the fixed base device, thereby allowing the hose 1 to freely rotate relative to the fixed base device. Next, since the fixed ring 221 is provided with a first swivel connection hole 2211 and the rotating ring 222 is provided with a second swivel connection hole 2221, the swivel connection assembly 223 is inserted through the first swivel connection hole 2211 and the second swivel connection hole 2221 to connect the rotating ring 222 to the fixed ring 221. In this way, the rotating ring 222 can be connected to the fixed ring 221 via the swivel connection assembly 223. Furthermore, the first rotary connecting hole 2211 and the second rotary connecting hole 2221 are both arranged parallel to the axis of the fixed ring 221. In this way, when the first rotary connecting hole 2211 and the second rotary connecting hole 2221 are connected through the rotary connecting assembly 223, pressure can be generated at the contact surface between the fixed ring 221 and the rotating ring 222, thereby making the connection between the fixed ring 221 and the rotating ring 222 tighter.

[0061] Next, since the swivel connection assembly 223 is inserted through the swivel elastic member 224, the swivel connection assembly 223 is used to adjust the deformation of the swivel elastic member 224. When the swivel elastic member 224 has different deformations, the pressure between the fixed ring 221 and the rotating ring 222 varies. As a result, the friction between the fixed ring 221 and the rotating ring 222 also varies. Consequently, the force used to rotate the rotating ring 222 also varies, thereby achieving the function of adjusting the rotational torque.

[0062] It should be noted that the above-mentioned fixed ring 221 and rotating ring 222 can be metal rings, plastic rings, or rings made of other materials, and this embodiment of the present application does not limit this.

[0063] It should be noted that the above-mentioned rotating elastic member 224 can be a spring, an elastic washer, or other elastic members, and this embodiment of the application does not limit this.

[0064] In some embodiments, see Figure 1 、 Figure 2 and Figure 3 The rotary connection assembly 223 includes a first clamping bolt 2231 and a first nut 2232 adapted to the first clamping bolt 2231. The first clamping bolt 2231 is passed through the rotary elastic member 224, the first rotary connection hole 2211 and the second rotary connection hole 2221. The first nut 2232 is threadedly connected to the first clamping bolt 2231.

[0065] In the embodiment of the present application, since the first nut 2232 is threadedly connected to the first compression bolt 2231, when the first nut 2232 rotates along the thread, it can move along the axis of the thread, thereby adjusting the deformation of the rotating elastic member 224. Specifically, when the first nut 2232 moves toward the rotating elastic member 224, the deformation of the rotating elastic member 224 increases, thereby increasing the pressure between the fixed ring 221 and the rotating ring 222, and the friction between the fixed ring 221 and the rotating ring 222, thereby increasing the force required to rotate the rotating ring 222. When the first nut 2232 moves away from the rotating elastic member 224, the opposite situation occurs, and the force required to rotate the rotating ring 222 is reduced.

[0066] Since the distance between the first nut 2232 and the rotating elastic member 224 can be continuously changed when connected by a thread, the deformation of the spring can be continuously changed, and the pressure between the fixed ring 221 and the rotating ring 222 can be continuously changed. The friction force between the fixed ring 221 and the rotating ring 222 can also be continuously changed, and the magnitude of the force used when rotating the rotating ring 222 can also be continuously changed, so that the magnitude of the rotational torque can be continuously adjusted.

[0067] See also Figure 1 、 Figure 2 and Figure 3 A flow guide device 100 includes a hose 1 and a bracket 2. The bracket 2 includes two support mechanisms 21 and two rotation adjustment mechanisms 22. The two support mechanisms 21 are fixedly connected to the hose 1. The upper and lower ends of the hose 1 are each independently connected to a rotation adjustment mechanism 22. The fixed ring 221 is a rotating hub seat, the rotating ring 222 is a rotating hub, and the rotating elastic member 224 is a compression spring. The lower rotating hub seat is welded to the air guide cover. The lower rotating hub is fixedly connected to the lower end of the hose 1, and the upper rotating hub is fixedly connected to the upper end of the hose 1. The upper rotating hub seat is provided with a flange as an interface for the hose 1.

[0068] The outer ring end faces of the hub and hub seat form a compression seal, and the rotational torque is adjusted by a compression spring, a first nut 2232, and a first compression bolt 2231. The first nut 2232 is a fastening nut, and the first compression bolt 2231 is a compression bolt. The rotational torque between the hub and hub seat is controlled by the deformation of the compression spring. The head of the compression bolt is a tenon structure with upper and lower limit surfaces. The head of the hub core is a tongue-and-groove structure with upper and lower limit surfaces. The spring deformation is adjusted by the tightening nut, which is accommodated within the tongue-and-groove structure. The compression of the compression spring is controlled by the tightening nut.

[0069] Alternatively, in some embodiments, see Figure 1 、 Figure 4 and Figure 5 The first angle adjustment mechanism 23 includes a first connecting component 231 and a first angle adjustment elastic member 232. The first connecting component 231 is passed through the first angle adjustment elastic member 232 and the support mechanism 21. The first connecting component 231 is used to adjust the deformation of the first angle adjustment elastic member 232.

[0070] In the embodiment of the present application, since the first connecting component 231 is provided through the support mechanism 21, the support mechanism 21 can rotate around the first connecting component 231. When two adjacent support mechanisms 21 are connected to each other, pressure can be generated at the contact surface of the two support mechanisms 21.

[0071] Next, because the first connecting component 231 is inserted through the first angle-adjusting elastic member 232, the first connecting component 231 is used to adjust the deformation of the first angle-adjusting elastic member 232. When the first angle-adjusting elastic member 232 has different deformations, the pressure generated at the contact surfaces of the two support mechanisms 21 varies. Consequently, the friction forces at the contact surfaces of the two support mechanisms 21 also vary, and the forces used to rotate the support mechanisms 21 about the first connecting component 231 also vary. This allows for torque adjustment during angle adjustment.

[0072] It should be noted that the first angle adjustment elastic member 232 may be a spring, an elastic washer, or other elastic members, which is not limited in this embodiment of the present application.

[0073] In some embodiments, see Figure 1 、 Figure 4 and Figure 5 The first connecting component 231 includes a second clamping bolt 2311 and a second nut 2312 adapted to the second clamping bolt 2311. The second clamping bolt 2311 is passed through the first angle adjustment elastic member 232 and the support mechanism 21. The second nut 2312 is threadedly connected to the second clamping bolt 2311.

[0074] In the embodiment of the present application, since the first connecting component 231 is inserted through the first angle adjustment elastic member 232, the first connecting component 231 is used to adjust the deformation of the first angle adjustment elastic member 232. When the first angle adjustment elastic member 232 has different deformations, the pressure generated at the contact surfaces of the two support mechanisms 21 is different, and thus the frictional forces at the contact surfaces of the two support mechanisms 21 are also different. In turn, the forces used to rotate the support mechanisms 21 about the first connecting component 231 are also different, thereby achieving the torque adjustment function during angle adjustment.

[0075] Since the distance between the second nut 2312 and the first angle adjustment elastic member 232 can be continuously changed when connected by a thread, the deformation of the first angle adjustment elastic member 232 can be continuously changed, and the pressure generated at the contact surface of the two support mechanisms 21 can be continuously changed, and the friction force at the contact surface of the two support mechanisms 21 can be continuously changed, and the force used when rotating the support mechanism 21 can also be continuously changed, so that the torque during angle adjustment can be continuously adjusted.

[0076] See also Figure 5 The second nut 2312 is a fastening nut, and the first angle adjustment elastic member 232 is a compression spring. The torque of the first angle adjustment mechanism 23 is controlled by the deformation of the compression spring. The fastening nut can adjust the deformation of the compression spring, and the second compression bolt 2311 compresses the compression spring in the tenon groove of the connecting seat.

[0077] Alternatively, in some embodiments, see Figure 1 、 Figure 6 and Figure 7The bracket 2 also includes a second angle adjustment mechanism 24, which is connected to the rotation adjustment mechanism 22. The rotation adjustment mechanism 22 is able to rotate about the second angle adjustment mechanism 24, with the rotation plane of the second angle adjustment mechanism 24 being perpendicular to the rotation direction of the first angle adjustment mechanism 23. This allows the hose 1 to bend in another direction, making it easier to adjust the shape of the hose 1. Furthermore, the end of the hose 1 can swing along the rotation plane of the second angle adjustment mechanism 24 in addition to rotating, making it easier to connect the end of the hose 1 to a fixed base device.

[0078] In some embodiments, see Figure 1 、 Figure 6 and Figure 7 The second angle adjustment mechanism 24 includes a fixed seat 241, a second connecting component 242 and a rotating hanger 243. The second connecting component 242 is penetrated by the fixed seat 241 and the rotating hanger 243 to adjust the pressure between the fixed seat 241 and the rotating hanger 243.

[0079] Optionally, in the embodiment of the present application, since the second connecting component 242 is provided through the fixed seat 241 and the rotating hanger 243, the fixed seat 241 and the rotating hanger 243 can be connected together through the second connecting component 242. The fixed seat 241 is fixedly connected to the support mechanism 21 or the first angle adjustment mechanism 23, thereby enabling the rotating hanger 243 to be connected to the support mechanism 21 or the first angle adjustment mechanism 23. Then, since the second connecting component 242 is used to adjust the pressure between the fixed seat 241 and the rotating hanger 243, the magnitude of the friction between the fixed seat 241 and the rotating hanger 243 can be adjusted, and the angle adjustment torque of the second angle adjustment mechanism 24 can be adjusted. Among them, one end of the rotating hanger 243 is connected to the fixed seat 241, and the other end is connected to the rotation adjustment mechanism 22.

[0080] It should be noted that the fixing seat 241 refers to a fixed structure connected to the supporting mechanism 21 or the first angle adjustment mechanism 23 , and is used to connect the rotating hanger 243 .

[0081] Alternatively, in some embodiments, see Figure 1 、 Figure 6 and Figure 7The fixed seat 241 is provided with a rotation groove 2411, and one end of the rotating hanger 243 is accommodated in the rotation groove 2411. The second connecting assembly 242 includes a third clamping bolt 2421, a first clamping slider 2422, and a first handle 2423. The third clamping bolt 2421 is provided through the fixed seat 241 and the rotating hanger 243 and is threadedly connected to the first clamping slider 2422 at one end. The first handle 2423 is fixedly connected to the end of the third clamping bolt 2421 that is away from the first clamping slider 2422.

[0082] The first handle 2423 can drive the third clamping bolt 2421 to rotate, thereby causing the first clamping slider 2422 to move along the axis of the third clamping bolt 2421. When the first clamping slider 2422 moves along the axis of the third clamping bolt 2421 toward one end of the first handle 2423, the friction between the rotating hanger 243 and the fixed seat 241 is increased, thereby increasing the rotational torque. When the first clamping slider 2422 moves along the axis of the third clamping bolt 2421 away from one end of the first handle 2423, the friction between the rotating hanger 243 and the fixed seat 241 is reduced, thereby reducing the rotational torque. Thus, torque adjustment of the second angle adjustment mechanism 24 can be achieved.

[0083] It should be noted that the first handle 2423 acts as a force-saving lever, which can facilitate the rotation of the third clamping bolt 2421 and further facilitate the adjustment of the rotational torque of the second angle adjustment mechanism 24 .

[0084] See also Figure 6 and Figure 7 The rotating groove 2411 is located in the middle of the fixed seat 241. The friction force between the rotating hanger 243 and the fixed seat 241 is controlled by the pressure of the two clamping surfaces of the rotating groove 2411, and the pressure of the two clamping surfaces is adjusted by adjusting the position of the first clamping slider 2422 relative to the third clamping bolt 2421.

[0085] See also Figure 1 The bracket 2 includes three first angle adjustment mechanisms 23 and one second angle adjustment mechanism 24. The corresponding structures, from top to bottom, are: the upper cantilever joint, the middle cantilever joint, the front cantilever joint, and the air scoop swivel joint. The three first angle adjustment mechanisms 23 and the second angle adjustment mechanism 24 are driven by the swivel adjustment mechanisms 22 at both ends of the hose 1. During use, adjustment is achieved by driving the handles at the middle and front cantilever joints. Specifically, in static mode, the handle at the middle cantilever joint is used for initial adjustment, while the front cantilever joint is used during assembly of the front connection components.

[0086] It should be noted that the three first angle adjustment mechanisms 23 and the second angle adjustment mechanism 24 are all adjusted in one go. The degree of adjustment is based on the condition that the bracket 2, in a free state, does not rotate, bend, or extend again due to the action of the hose 1 and its own gravity at the corresponding position.

[0087] To further facilitate the angle adjustment of the support mechanism 21, the bracket 2 also includes a nitrogen spring. The two ends of the nitrogen spring are respectively connected to the first angle adjustment mechanism 23 and the support mechanism 21. The nitrogen spring can be extended or shortened as needed and can be locked at the corresponding length. This can play the role of locking the angle adjustment.

[0088] Alternatively, in some embodiments, see Figure 1 、 Figure 8 and Figure 9 The telescopic mechanism 25 includes at least two telescopic sections 251 and a tightening adjustment member 252. The at least two telescopic sections 251 are nested within one another, and the tightening adjustment member 252 is connected to the telescopic sections 251. The tightening adjustment member adjusts the relative movement between two adjacent telescopic sections 251. This allows the length of the telescopic mechanism 25, and thus the length of the hose 1, to be varied by the relative movement between the adjacent telescopic sections 251. The tightening adjustment member 252 allows the tightness of the telescopic mechanism 25 to be adjusted, making it easier to adjust the shape of the hose 1.

[0089] In the embodiment of the present application, the number of telescopic sections 251 of the telescopic mechanism 25 can be two or more, which is not limited in the embodiment of the present application. The telescopic section 251 is divided into an inner telescopic section 251 and an outer telescopic section 251. Specifically, the telescopic mechanism 25 includes an inner telescopic section 251 and at least one outer telescopic section 251. The outer telescopic section 251 is sleeved on the inner telescopic section 251, and the outer telescopic section 251 can move relative to the inner telescopic section 251 along the axis of the inner telescopic section 251, and / or the outer telescopic section 251 is sleeved on another outer telescopic section 251, and the outer telescopic section 251 can move relative to the other outer telescopic section 251 along the axis of the other outer telescopic section 251.

[0090] It should also be noted that the connection method between adjacent telescopic joints 251 can be a sliding connection or a rolling connection, or other connection methods that can produce relative movement, which is not limited in this embodiment of the present application.

[0091] Furthermore, the locking adjustment member 252 includes a second handle 2521, a fourth clamping bolt 2522, a second clamping slider 2523 and a telescopic adjustment elastic member 2524. The second clamping slider 2523 is located at the innermost telescopic joint 251, the fourth clamping bolt 2522 is passed through the innermost telescopic joint 251 and is connected to the second clamping slider 2523, the telescopic adjustment elastic member 2524 is located on the side of the second clamping slider 2523 that is away from the fourth clamping bolt 2522, and the second handle 2521 is fixedly connected to the end of the fourth clamping bolt 2522 that is away from the second clamping slider 2523.

[0092] The fourth clamping bolt 2522 is threadedly connected to the second clamping slider 2523, and the telescopic adjustment elastic member 2524 contacts the innermost telescopic section 251. Rotating the second handle 2521 drives the fourth clamping bolt 2522 to rotate, thereby driving the second clamping slider 2523 to move along the axis of the fourth clamping bolt 2522. Furthermore, because the telescopic adjustment elastic member 2524 is located on the side of the second clamping slider 2523 facing away from the fourth clamping bolt 2522, the telescopic adjustment elastic member 2524 can be deformed when the second clamping slider 2523 moves along the axis of the fourth clamping bolt 2522. This causes the pressure applied by the telescopic adjustment elastic member 2524 to the innermost telescopic section 251 to change, thereby changing the degree of tightening between adjacent telescopic sections 251.

[0093] It should be noted that the second handle 2521 acts as a force-saving lever, which can facilitate the rotation of the fourth clamping bolt 2522 and further facilitate the adjustment of the locking degree of the telescopic mechanism 25.

[0094] It should also be noted that the telescopic adjustment elastic member 2524 may be a spring, an elastic washer, or other elastic member, and this embodiment of the present application does not limit this.

[0095] In order to prevent two adjacent telescopic joints 251 from being separated during telescoping, a limiting piece is provided at the intersection of the two telescopic joints 251 . The limiting piece can prevent the inner telescopic joint 251 from slipping off the outer telescopic joint 251 .

[0096] Alternatively, in some embodiments, see Figure 1 、 Figure 10 and Figure 11 The flow guide device 100 also includes a fluid pressure regulating valve 3 and a flow meter. The fluid pressure regulating valve 3 is arranged at one end of the hose 1, and the flow meter is arranged at the inlet end of the hose 1 for controlling the opening of the fluid pressure regulating valve 3.

[0097] In this embodiment of the present application, the flow diversion device 100 includes a fluid pressure regulating valve 3, which is disposed at one end of the hose 1. This fluid pressure regulating valve 3 controls the pressure within the hose 1 by controlling the amount of fluid entering the hose 1. Specifically, the greater the amount of fluid flowing into the hose 1 per unit time, the greater the pressure within the hose 1; and the less the amount of fluid flowing into the hose 1 per unit time, the lower the pressure within the hose 1. The fluid can be a gas or a liquid, which is not limited in this embodiment of the present application.

[0098] When the fluid is gas, the fluid pressure regulating valve 3 is a gas pressure regulating valve, which controls the air pressure in the hose 1 by controlling the amount of gas entering the hose 1. Specifically, the more gas flows into the hose 1 per unit time, the greater the air pressure in the hose 1, and the less gas flows into the hose 1 per unit time, the smaller the air pressure in the hose 1.

[0099] It should be noted that the gas pressure regulating valve may be an electric butterfly valve, a manual switch, or other devices with the same function, and the embodiments of the present application do not limit this.

[0100] See also Figure 1 、 Figure 10 and Figure 11 When the end of the hose 1 is an air scoop and the gas pressure regulating valve is an electric butterfly valve, the air scoop housing is welded with an electric valve bracket 312, a sealing ring seat 32, an end face connecting flange, and a support plate connecting flange. The hub seat is welded to the interior of the air scoop housing. In this case, the electric butterfly valve includes a stepper motor 33, a disc 34, a return spring 35, a sealing ring 36, a rotating shaft 37, and a limit cover 38.

[0101] The electric butterfly valve's rotating shaft 37 extends through the ventilation duct of the air scoop. The upper end of the rotating shaft 37 is sealed with a sealing ring 36, which is mounted within the air scoop's sealing seat. The sealing ring 36 is made of rubber. A stepper motor 33 controls the opening of the butterfly valve. A return spring 35 holds the butterfly valve in a normally open position. A limit cap 38 is attached to the upper end of the spring, while the lower end is restrained by the electric valve bracket 312. A long annular groove in the center of the limit cap 38 restricts the rotation of the rotating shaft 37.

[0102] The flow diversion device 100 also includes a flowmeter, located at the inlet end of the hose 1, for controlling the opening of the fluid pressure regulating valve 3. The flowmeter is connected to the fluid pressure regulating valve 3 via a cable. The flowmeter measures the flow rate of the fluid within the hose 1 in real time and transmits a control signal to the fluid pressure regulating valve 3 based on the flow rate. If the flowmeter detects a low flow rate, the opening of the fluid pressure regulating valve 3 is increased. If the flowmeter detects a high flow rate, the opening of the fluid pressure regulating valve 3 is decreased.

[0103] When the fluid is gas, the fluid pressure regulating valve 3 functions as a gas pressure regulating valve. In this case, the flow meter can measure the flow rate of the gas within the hose 1 in real time and transmit a regulating signal to the gas pressure regulating valve based on the gas flow rate. When the flow meter measures a low gas flow rate, the gas pressure regulating valve can be opened wider. When the flow meter measures a high gas flow rate, the gas pressure regulating valve can be opened narrower.

[0104] Furthermore, the flow meter, after measuring the gas flow rate within the hose 1 in real time, can generate a regulation signal and transmit the regulation signal to the test bench control system. The test bench control system receives the regulation signal, analyzes and processes it, and then transmits the regulation instruction to the gas pressure regulating valve. Upon receiving the regulation instruction, the gas pressure regulating valve controls its own opening, thereby regulating the gas flow rate.

[0105] It should be noted that the inlet end of the above-mentioned hose 1 refers to the end into which the fluid in the hose 1 flows. When the fluid flows from top to bottom, the inlet end is the upper end of the hose 1, and when the fluid flows from left to right, the inlet end is the left end of the hose 1.

[0106] See also Figure 1 In the flow guide device 100, gas flows in from the upper end of the hose 1 and flows out from the lower end of the hose 1. Therefore, the upper end of the hose 1 is the inlet end, and the flow meter is disposed at the upper end of the hose 1. The flow meter and the inlet end of the hose 1 can be connected by bolts or by a clamping connection, which is not limited in this embodiment of the present application.

[0107] An embodiment of the present application further discloses an engine test bench, which includes the flow guide device 100 described in any one of the first aspects above, and one end of the hose 1 is used to be connected to the intake air filter of the engine to be tested.

[0108] In this way, when the engine test bench is used to test the assembly process of the engine's intake system and ventilation and cooling system, the corresponding ventilation hose 1 itself can be prevented from shaking, thereby preventing the hose 1 itself from being damaged. In addition, the shape of the ventilation hose 1 can be adjusted more conveniently, thereby improving the efficiency of the test.

[0109] When testing the assembly process of the engine's air intake system and ventilation and cooling system, it is necessary to ensure that the pressure of the air intake air conditioning outlet of the pipeline is controlled within the range of 100kPa±1kPa. When the flow guide device 100 is used as the air intake pipeline, the fluid pressure regulating valve 3 is a gas pressure regulating valve. At this time, the flow meter can measure the flow of the gas in the hose 1 in real time and transmit a regulating signal to the gas pressure regulating valve according to the size of the gas flow. When the flow meter measures that the gas flow is too small, the opening of the gas pressure regulating valve can be controlled to increase. When the flow meter measures that the gas flow is too large, the opening of the gas pressure regulating valve can be controlled to decrease, and then the air pressure in the hose 1 can be accurately controlled to control the air intake air conditioning outlet pressure within the range of 100kPa±1kPa.

[0110] It should be noted that the above-mentioned engine can be a gasoline engine, a diesel engine, or other types of internal combustion engines, and the embodiments of the present application are not limited to this.

[0111] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flow guiding device (100), characterized in that: include: Hose (1); A bracket (2), the bracket (2) comprising a supporting mechanism (21), a slewing adjustment mechanism (22) and a first angle adjustment mechanism (23), at least two of the supporting mechanisms (21) are fixedly connected to the hose (1), at least one end of the hose (1) is correspondingly connected to one of the slewing adjustment mechanisms (22), the first angle adjustment mechanism (23) is connected to the end of the supporting mechanism (21), and at least one of the supporting mechanisms (21) is a telescopic mechanism (25).

2. The flow guiding device (100) according to claim 1, characterized in that: The bracket (2) comprises two rotation adjustment mechanisms (22), and the two rotation adjustment mechanisms (22) are respectively and individually connected to two ends of the hose (1).

3. The flow guiding device (100) according to claim 2, characterized in that: The rotation adjustment mechanism (22) comprises a fixed ring (221), a rotating ring (222), a rotation connection assembly (223) and a rotation elastic member (224); One end of the rotating ring (222) is rotatably connected to the fixed ring (221), and the other end is fixedly connected to the hose (1); The fixed ring (221) is provided with a first rotary connection hole (2211), the rotating ring (222) is provided with a second rotary connection hole (2221), the rotary connection component (223) is penetrated through the rotary elastic member (224), the first rotary connection hole (2211) and the second rotary connection hole (2221), so that the rotating ring (222) is connected to the fixed ring (221), and the rotary connection component (223) is used to adjust the deformation amount of the rotary elastic member (224).

4. The flow guiding device (100) according to claim 1, characterized in that: The first angle adjustment mechanism (23) comprises a first connecting component (231) and a first angle adjustment elastic member (232); the first connecting component (231) is inserted through the first angle adjustment elastic member (232) and the supporting mechanism (21); the first connecting component (231) is used to adjust the deformation of the first angle adjustment elastic member (232).

5. The flow guiding device (100) according to claim 1, characterized in that: The bracket (2) further comprises a second angle adjustment mechanism (24), wherein the second angle adjustment mechanism (24) is connected to the rotation adjustment mechanism (22).

6. The flow guiding device (100) according to claim 5, characterized in that: The second angle adjustment mechanism (24) comprises a fixed seat (241), a second connecting component (242) and a rotating hanger (243); the second connecting component (242) is inserted through the fixed seat (241) and the rotating hanger (243) and is used to adjust the pressure between the fixed seat (241) and the rotating hanger (243).

7. The flow guiding device (100) according to claim 6, characterized in that: The fixing seat (241) is provided with a rotation groove (2411), and one end of the rotating hanging member (243) is accommodated in the rotation groove (2411); The second connecting assembly (242) includes a third clamping bolt (2421), a first clamping slider (2422) and a first handle (2423). The third clamping bolt (2421) is passed through the fixed seat (241) and the rotating hanger (243) and is threadedly connected to the first clamping slider (2422) at one end. The first handle (2423) is fixedly connected to one end of the third clamping bolt (2421) away from the first clamping slider (2422).

8. The flow guiding device (100) according to claim 1, characterized in that: The telescopic mechanism (25) comprises at least two telescopic joints (251) and a locking degree adjusting member (252), wherein at least two telescopic joints (251) are sleeved with each other, and the locking degree adjusting member (252) is connected to the telescopic joints (251); The locking degree adjustment member (252) includes a second handle (2521), a fourth clamping bolt (2522), a second clamping slider (2523) and a telescopic adjustment elastic member (2524), wherein the second clamping slider (2523) is located at the innermost telescopic joint (251), the fourth clamping bolt (2522) is passed through the innermost telescopic joint (251) and is connected to the second clamping slider (2523), the telescopic adjustment elastic member (2524) is located at a side of the second clamping slider (2523) that is away from the fourth clamping bolt (2522), and the second handle (2521) is fixedly connected to an end of the fourth clamping bolt (2522) that is away from the second clamping slider (2523).

9. The flow guiding device (100) according to any one of claims 1 to 8, characterized in that: The flow guiding device (100) further comprises a fluid pressure regulating valve (3) and a flow meter, wherein the fluid pressure regulating valve (3) is arranged at one end of the hose (1), and the flow meter is arranged at the inlet end of the hose (1) and is used to control the opening degree of the fluid pressure regulating valve (3).

10. An engine test bench, characterized in that: It comprises the flow guiding device (100) according to any one of claims 1 to 9, wherein one end of the hose (1) is used for connecting to an intake air filter of an engine to be tested.

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