Fixing device of wind tunnel test end plate

Abstract

The utility model discloses a fixing device for a wind tunnel test end plate, which relates to the technical field of wind tunnel test devices and comprises a mounting vertical rod, a vertical rod fixed mounting rod and a vertical rod movable mounting rod are arranged on the mounting vertical rod, and the vertical rod movable mounting rod can change positions on the mounting vertical rod along the vertical direction. The vertical rod fixed mounting rod and the vertical rod movable mounting rod penetrate through the mounting vertical rod, and the mounting vertical rod is used for providing a vertical mounting point position. The vertical rod movable mounting rod is arranged on the fixing device of the wind tunnel test end plate, so that the position of the vertical rod movable mounting rod can be adjusted according to different wind tunnel test end plates; according to the wind tunnel test end plate fixing device, the mounting holes in different wind tunnel test end plates are aligned, the technical effect that the same set of fixing device is used for mounting various wind tunnel test end plates is achieved, the mounting cross rods can be additionally mounted on the mounting vertical rods when the wind tunnel test end plates are large in size, and more mounting point positions are provided through the mounting cross rods; the number and the positions of the installation vertical rods and the installation transverse rods can be adjusted according to actual requirements, and convenience and reliability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind tunnel test devices, in particular to a fixing device for a wind tunnel test end plate. Background Art

[0002] When conducting a two-dimensional model wind tunnel test, end plates need to be installed at both ends of the model to ensure the two-dimensional nature of the airflow during the wind tunnel test. Existing end plate fixing devices are mostly temporary pipe fittings, which are connected and fixed to the end plates by punching holes in the steel pipe. The structure of this temporary device for fixing the end plate is relatively simple. In addition, the test models of different wind tunnel tests are of different sizes, resulting in different sizes of the end plates and different positions of the fixed end plates. Therefore, it is necessary to re-punch holes in the steel pipe, which is more labor-intensive and resource-intensive. If too many holes are punched in the steel pipe or the size does not meet the requirements, the pipe fittings need to be replaced, resulting in a waste of resources. Utility Model Content

[0003] The purpose of the utility model is to provide a fixing device for a wind tunnel test end plate to solve the problems existing in the above-mentioned prior art. When replacing the wind tunnel test end plate, there is no need to re-drill holes in the steel pipe or replace the pipe fittings. The installation is convenient and the versatility is high. A set of fixing devices can be adapted to a variety of different wind tunnel test end plates, providing convenience for wind tunnel tests of two-dimensional models and avoiding waste of resources.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a fixing device for an end plate of a wind tunnel test, comprising a mounting vertical rod, on which a vertical rod fixed mounting rod and a vertical rod movable mounting rod are arranged, and the vertical rod movable mounting rod can change position on the mounting vertical rod along the vertical direction, the vertical rod fixed mounting rod and the vertical rod movable mounting rod penetrate the mounting vertical rod, and the mounting vertical rod is used to provide a vertical mounting point.

[0006] Preferably, a mounting rod fixing hole one is provided on the mounting vertical rod, the mounting rod fixing holes one are distributed on the mounting vertical rod along the vertical direction, and the vertical rod movable mounting rod is provided in the mounting rod fixing hole one.

[0007] Preferably, the first fixing hole of the mounting rod is an elongated hole, and the vertical rod movable mounting rod can be positionally adjusted in the first fixing hole of the mounting rod.

[0008] Preferably, the fixing device for the wind tunnel test end plate provided by the utility model further comprises a mounting cross bar, wherein the mounting cross bar is transversely mounted on the mounting vertical bar, and the mounting cross bar is used to provide a transverse mounting point.

[0009] Preferably, a fixed crossbar mounting rod and a movable crossbar mounting rod are provided on the mounting crossbar, and the movable crossbar mounting rod can change position along the vertical direction on the mounting vertical rod, and the fixed crossbar mounting rod and the movable crossbar mounting rod pass through the mounting crossbar.

[0010] Preferably, the mounting cross bar is provided with a second mounting rod fixing hole, the second mounting rod fixing hole is distributed on the mounting cross bar along the vertical direction, and the cross bar movable mounting rod is arranged in the second mounting rod fixing hole.

[0011] Preferably, the second fixing hole of the mounting rod is an elongated hole, and the position of the movable mounting rod of the cross bar can be adjusted in the second fixing hole of the mounting rod.

[0012] Preferably, the vertical rod fixed mounting rod, the vertical rod movable mounting rod, the cross rod fixed mounting rod and the cross rod movable mounting rod are screw rods.

[0013] Preferably, the vertical rod fixed mounting rod, the vertical rod movable mounting rod, the cross rod fixed mounting rod and the cross rod movable mounting rod have the same structure, the mounting rod fixing hole one has the same structure as the mounting rod fixing hole two, and the vertical rod fixed mounting rod, the vertical rod movable mounting rod, the cross rod fixed mounting rod and the cross rod movable mounting rod can be fixed in the mounting rod fixing hole one or the mounting rod fixing hole two.

[0014] Preferably, a retractable bracket is provided at the end of the mounting vertical rod.

[0015] Compared with the prior art, the utility model has achieved the following technical effects:

[0016] The fixing device of the wind tunnel test end plate provided by the utility model is provided with a vertical rod movable mounting rod, and the position of the vertical rod movable mounting rod can be adjusted according to different wind tunnel test end plates, and the mounting holes on different wind tunnel test end plates can be aligned, so as to achieve the technical effect of installing a plurality of wind tunnel test end plates of different sizes with the same set of fixing devices. The number and position of the installed vertical rods can also be adjusted according to the actual size of the end plate, which is convenient and reliable.

[0017] The utility model also achieves the following technical effects:

[0018] 1. The fixing device of the wind tunnel test end plate provided by the utility model is also provided with a mounting cross bar, which can provide more mounting points, and some mounting points on the mounting cross bar can be moved, making the installation more convenient;

[0019] 2. The end of the mounting vertical rod of the wind tunnel test end plate provided by the utility model is fixed in the wind tunnel laboratory by a retractable bracket, and is easy to disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a schematic diagram of the structure of installing a vertical rod in an embodiment of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of installing the cross bar in the embodiment of the utility model;

[0023] Figure 3 This is a schematic diagram of the combined structure of the fixing device for fixing a large-size end plate in an embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the combined structure of the fixing device for fixing a medium-sized end plate in an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the combined structure of the fixing device when fixing a small-sized end plate in an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of the dimensions of the installation vertical rod and the installation horizontal rod in the embodiment of the utility model.

[0027] Among them, 1. Install the vertical rod; 2. Install the vertical rod fixedly; 3. Install the vertical rod movablely; 4. Install the first fixing hole of the mounting rod; 5. Install the horizontal rod; 6. Install the horizontal rod fixedly; 7. Install the horizontal rod movablely; 8. Install the second fixing hole of the mounting rod; 9. Retractable bracket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] The purpose of the utility model is to provide a fixing device for a wind tunnel test end plate to solve the problems existing in the above-mentioned prior art. When replacing the wind tunnel test end plate, there is no need to re-drill holes in the steel pipe or replace the pipe fittings. The installation is convenient and the versatility is high. A set of fixing devices can be adapted to a variety of different wind tunnel test end plates, providing convenience for wind tunnel tests of two-dimensional models and avoiding waste of resources.

[0030] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] The utility model provides a fixing device for an end plate of a wind tunnel test, such as Figure 1 As shown, it includes a mounting vertical rod 1, on which a vertical rod fixed mounting rod 2 and a vertical rod movable mounting rod 3 are arranged, and the vertical rod movable mounting rod 3 can change position on the mounting vertical rod 1 along the vertical direction, and the vertical rod fixed mounting rod 2 and the vertical rod movable mounting rod 3 pass through the mounting vertical rod 1, and the mounting vertical rod 1 is used to provide a vertical mounting point. A plurality of the mounting vertical rods 1 are used in groups to form a wind tunnel test end plate fixing device, and the wind tunnel test end plate to be fixed is installed on the fixing device. The position of the vertical rod movable mounting rod 3 can be adjusted to adapt to the mounting holes on different wind tunnel test end plates, so that a set of fixing devices can adapt to a variety of different wind tunnel test end plates.

[0032] The mounting rod fixing hole 14 is arranged on the mounting vertical rod 1, and the mounting rod fixing hole 14 is distributed on the mounting vertical rod 1 along the vertical direction, and the vertical rod movable mounting rod 3 is arranged in the mounting rod fixing hole 14. Figure 1 As shown, in a preferred embodiment, the mounting rod fixing hole 1 4 is a long hole, and the vertical rod movable mounting rod 3 can be fixed at any position in the mounting rod fixing hole 1 4 , and has good adaptability.

[0033] like Figure 2 As shown, the utility model also includes an installation cross bar 5, which is transversely installed on the installation vertical bar 1. The installation cross bar 5 is used to provide a transverse installation point, which plays a role in supplementing the installation point and expanding the installation space. In one embodiment, a cross bar fixed installation rod 6 and a cross bar movable installation rod 7 are set on the installation cross bar 5. The cross bar movable installation rod 7 can change its position on the installation vertical bar 1 along the vertical direction. The cross bar fixed installation rod 6 and the cross bar movable installation rod 7 pass through the installation cross bar 5.

[0034] The mounting cross bar 5 is provided with a second mounting rod fixing hole 8, and the second mounting rod fixing holes 8 are distributed on the mounting cross bar 5 along the vertical direction. The cross bar movable mounting rod 7 is arranged in the second mounting rod fixing hole 8. In a preferred embodiment, the second mounting rod fixing hole 8 is a long hole, and the cross bar movable mounting rod 7 can be fixed at any position in the second mounting rod fixing hole 8.

[0035] The vertical rod fixed installation rod 2, the vertical rod movable installation rod 3, the cross rod fixed installation rod 6 and the cross rod movable installation rod 7 are screw rods, and the movable installation rod 7 can also be a fixed form of a bare rod and a clip.

[0036] As shown in the figure, the vertical rod fixed mounting rod 2, the vertical rod movable mounting rod 3, the cross bar fixed mounting rod 6 and the cross bar movable mounting rod 7 have the same structure, the mounting rod fixing hole 1 4 and the mounting rod fixing hole 2 8 have the same structure, the vertical rod fixed mounting rod 2, the vertical rod movable mounting rod 3, the cross bar fixed mounting rod 6 and the cross bar movable mounting rod 7 can be fixed in the mounting rod fixing hole 1 4 or the mounting rod fixing hole 2 8 to realize the combination of the mounting vertical rod 1 and the mounting cross bar 5.

[0037] The end of the mounting vertical rod 1 is provided with a retractable bracket 9. During installation, one end of the mounting vertical rod 1 is placed on the bottom plate of the wind tunnel test chamber, and then the retractable bracket 9 is adjusted so that the two ends of the mounting vertical rod 1 are tightly abutted against the top plate and the bottom plate of the wind tunnel test chamber, so as to achieve the effect of stably fixing the mounting vertical rod 1. At least one retractable bracket 9 is provided on each mounting vertical rod 1. Figure 1 In one embodiment, retractable brackets 9 are installed at both ends of the mounting vertical rod 1. The end surface material of the retractable bracket 9 can be wear-resistant materials such as rubber and PVC. The retractable bracket 9 can also be made of metal material and covered with an anti-slip layer on its surface. The end surface of the mounting vertical rod 1 where the retractable bracket 9 is not installed is covered with an anti-slip and wear-resistant material or coated with an anti-slip layer.

[0038] In the actual test process, three sizes of wind tunnel test end plates are often used, namely large, medium and small. Therefore, the utility model also provides a fixing device suitable for wind tunnel test end plates of different sizes, such as Figure 3-5 As shown, when it is necessary to fix a large-sized (diameter 1200mm~1500mm) wind tunnel test end plate, the fixing device is composed of three mounting vertical rods 1 and two mounting cross rods 5, wherein the two vertical rod fixing mounting rods 2 on one mounting vertical rod 1 are respectively fixedly connected to the cross rod fixing mounting rod 6 on the mounting cross rod 5, and the other two mounting vertical rods 1 are movably mounted on the cross rod movable mounting rod 7 of the mounting cross rod 5; when it is necessary to fix a medium-sized (diameter 500mm~1200mm) wind tunnel test end plate, the fixing device is composed of three mounting vertical rods 1 and two mounting cross rods 5, wherein the two vertical rod fixing mounting rods 2 on one mounting vertical rod 1 are respectively fixedly connected to the cross rod fixing mounting rod 6 on the mounting cross rod 5, and the other two mounting vertical rods 1 are movably mounted on the cross rod movable mounting rod 7 of the mounting cross rod 5; When the end plate is tested in a wind tunnel, the fixing device consists of two mounting vertical rods 1 and two mounting cross rods 5. The two mounting vertical rods 1 are movably mounted on the cross rod movable mounting rod 7 of the mounting cross rod 5. When a small-sized (diameter 300mm to 500mm) wind tunnel test end plate needs to be fixed, the fixing device consists of one mounting vertical rod 1 and two mounting cross rods 5. The two vertical rod fixing mounting rods 2 on the mounting vertical rod 1 are respectively fixedly connected to the cross rod fixing mounting rod 6 on the mounting cross rod 5.

[0039] In one embodiment, the dimensions of the various parts of the mounting vertical rod 1 and the mounting horizontal rod 5 are as follows: Figure 6 As shown, the sizes of the mounting vertical rod 1 and the mounting horizontal rod 5 can be adjusted according to actual needs.

[0040] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A fixing device for an end plate of a wind tunnel test, characterized in that: The utility model comprises a mounting vertical rod (1), on which a vertical rod fixed mounting rod (2) and a vertical rod movable mounting rod (3) are arranged, and the vertical rod movable mounting rod (3) can change its position along the vertical direction on the mounting vertical rod (1), the vertical rod fixed mounting rod (2) and the vertical rod movable mounting rod (3) penetrate the mounting vertical rod (1), and the mounting vertical rod (1) is used to provide a vertical mounting point.

2. The fixing device for the wind tunnel test end plate according to claim 1, characterized in that: The mounting vertical rod (1) is provided with a mounting rod fixing hole (4), the mounting rod fixing holes (4) are distributed on the mounting vertical rod (1) in a vertical direction, and the vertical rod movable mounting rod (3) is arranged in the mounting rod fixing hole (4).

3. The fixing device for the wind tunnel test end plate according to claim 2, characterized in that: The mounting rod fixing hole one (4) is a long hole, and the vertical rod movable mounting rod (3) can be adjusted in position within the mounting rod fixing hole one (4).

4. The fixing device for the wind tunnel test end plate according to claim 2, characterized in that: It also comprises a mounting cross bar (5), wherein the mounting cross bar (5) is transversely mounted on the mounting vertical bar (1), and the mounting cross bar (5) is used to provide a transverse mounting point.

5. The fixing device for the wind tunnel test end plate according to claim 4, characterized in that: A crossbar fixed mounting rod (6) and a crossbar movable mounting rod (7) are arranged on the mounting crossbar (5); the crossbar movable mounting rod (7) can change position along the vertical direction on the mounting vertical rod (1); the crossbar fixed mounting rod (6) and the crossbar movable mounting rod (7) penetrate the mounting crossbar (5).

6. The fixing device for the wind tunnel test end plate according to claim 5, characterized in that: The mounting cross bar (5) is provided with two mounting rod fixing holes (8), the two mounting rod fixing holes (8) are distributed on the mounting cross bar (5) in a vertical direction, and the cross bar movable mounting rod (7) is arranged in the two mounting rod fixing holes (8).

7. The fixing device for the wind tunnel test end plate according to claim 6, characterized in that: The second mounting rod fixing hole (8) is a long hole, and the crossbar movable mounting rod (7) can be adjusted in position within the second mounting rod fixing hole (8).

8. The fixing device for the wind tunnel test end plate according to claim 7, characterized in that: The vertical rod fixed mounting rod (2), the vertical rod movable mounting rod (3), the horizontal rod fixed mounting rod (6) and the horizontal rod movable mounting rod (7) are screw rods.

9. The fixing device for the wind tunnel test end plate according to claim 7, characterized in that: The vertical rod fixed mounting rod (2), the vertical rod movable mounting rod (3), the cross rod fixed mounting rod (6) and the cross rod movable mounting rod (7) have the same structure, the mounting rod fixing hole 1 (4) and the mounting rod fixing hole 2 (8) have the same structure, and the vertical rod fixed mounting rod (2), the vertical rod movable mounting rod (3), the cross rod fixed mounting rod (6) and the cross rod movable mounting rod (7) can be fixed in the mounting rod fixing hole 1 (4) or the mounting rod fixing hole 2 (8).

10. The fixing device for the wind tunnel test end plate according to any one of claims 1 to 9, characterized in that: A retractable bracket (9) is provided at the end of the mounting vertical rod (1).

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