A fan test bench

Abstract

The utility model discloses a fan test bench, including base, top connecting piece, a plurality of interval arrangement's stand and a plurality of crosspieces. Top connecting piece is located the top of base, and top connecting piece and base have the interval between them. Stand is located between base and top connecting piece, and the bottom of stand is connected to base, and the top of stand is connected to top connecting piece, and the first area is formed between adjacent stands. Crosspiece is connected with stand, is used for dividing the first area, and the area between two crosspieces in the first area forms the installation area. The utility model discloses a fan test bench can be stably placed in the place, and it can place the fan to be tested in the installation area when using, then adopts the bandage to fix the fan to be tested on the stand and crosspiece, thereby realizes the fixation of the fan to be tested. Through adopting the utility model discloses a fan test bench can make the fan to be tested fixed and not to shake when testing, thereby improves the precision of fan test.

Description

Technical Field

[0001] This utility model belongs to the field of fan testing technology, and in particular relates to a fan testing bench. Background Technology

[0002] When testing fans, it is often necessary to secure the fan. The current method involves finding a table leg that fits the size of the fan under test and then strapping the fan to it. However, this method has a problem: when the fan's airflow is strong, the fan can cause the table leg to vibrate, leading to inaccurate fan tests. Utility Model Content

[0003] To address the above problems, this utility model provides a fan test bench, comprising:

[0004] Base;

[0005] A top connector is located above the base, and there is a gap between the top connector and the base;

[0006] A number of spaced columns are arranged between the base and the top connector, the bottom of the column is connected to the base, and the top of the column is connected to the top connector; a first area is formed between adjacent columns.

[0007] Several crossbars are connected to the uprights to divide the first area; the area between two adjacent crossbars in the first area forms an installation area.

[0008] In one embodiment of the fan test bench, at least a portion of the crossbars are slidably connected to the column;

[0009] The crossbar that is slidably connected to the column is a movable bar;

[0010] The movable rod is provided with a locking structure between at least two of the columns that are slidably connected thereto, the locking structure being used to lock the relative position between the movable rod and the columns.

[0011] In a fan test bench provided in one embodiment, the movable rod and the column are slidably connected by a sliding structure, the sliding structure comprising:

[0012] A first chute is provided on the column, and guide protrusions are respectively provided on the two side walls of the first chute along the length direction of the first chute.

[0013] A guide wheel is disposed within the groove, and an annular groove matching the guide protrusion is provided on the outer side wall of the guide wheel;

[0014] A slide block is connected to the movable rod, and the guide wheel is rotatably connected to the slide block.

[0015] In one embodiment of the fan test bench, the locking structure includes:

[0016] A locking block extends into the first sliding groove, and the locking block is provided with a locking groove that matches the guide protrusion; the slide block is provided with a second sliding groove, and the locking block is slidably connected to the second sliding groove. When the locking block slides in the second sliding groove, the locking groove moves toward the direction closer to the guide protrusion or moves away from the guide protrusion.

[0017] A lead screw is rotatably connected to the slide block; the lead screw is threadedly connected to the locking block and is used to drive the locking block to slide within the second slide groove.

[0018] In a fan test bench provided in one embodiment, the connection points between the base and a plurality of the columns are arranged along the sides of a polygon, and the connection points between the base and the columns are located at each corner of the polygon.

[0019] In a fan test bench provided in one embodiment, the connection points between the base and a plurality of the columns are arranged along the sides of a polygon, and the connection points between the base and the columns are located at each corner of the polygon.

[0020] The movable rod is located on the vertical plane containing any side of the polygon, and the two ends of the movable rod are slidably connected to the columns corresponding to the two endpoints of the side.

[0021] In one embodiment of the fan test bench, the crossbar includes a movable rod that is slidably connected to the column and a fixed rod that is fixedly connected to the column;

[0022] In the vertical direction, a movable rod is provided between two adjacent fixed rods.

[0023] The fan test bench provided in one embodiment also includes a protective cover;

[0024] The polygon extends upwards until it reaches the position of the uppermost horizontal bar, and the space formed therein is the first space;

[0025] The protective cover covers the first space and has a gap between it and the first space.

[0026] In one embodiment of the fan test bench, the protective cover is at least partially openable.

[0027] In one embodiment of the fan test bench, the bottom of the base is connected to wheels and retractable feet.

[0028] Because of the adoption of the above technical solution, this utility model has the following advantages and positive effects compared with the prior art:

[0029] The fan test bench provided by this utility model can be stably placed on the ground. In use, the fan to be tested can be placed in the installation area, and then secured to the uprights and crossbars using straps or similar means, thus achieving fan stability. By using this fan test bench, the fan under test can be fixed in place without shaking during testing, thereby improving the accuracy of fan testing. Attached Figure Description

[0030] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention.

[0031] Figure 1 This is a schematic diagram of a fan test bench according to the present invention;

[0032] Figure 2 This is a schematic diagram of the structure of a fan test bench (with part of the cover removed) according to the present invention;

[0033] Figure 3 This is a schematic diagram of the structure of a fan test bench (with part of the cover removed) according to the present invention;

[0034] Figure 4 This is a schematic diagram of the structure of a fan test bench (with part of the cover removed) according to the present invention;

[0035] Figure 5 This is a partial structural schematic diagram of a fan test bench according to the present invention;

[0036] Figure 6 This is a partial structural diagram of a fan test bench according to the present invention at the sliding structure.

[0037] Figure 7 This is a partial structural diagram of a fan test bench according to the present invention at the locking structure.

[0038] Figure 8 This is a partial structural diagram of a fan test bench according to the present invention, showing the wheels and retractable feet.

[0039] Explanation of reference numerals in the attached figures:

[0040] A: First area; B: Installation area;

[0041] 1: Base; 2: Top connector; 3: Column; 4: Support column; 5: Movable rod; 6: Fixed rod; 7: First slide groove; 8: Guide wheel; 9: Slide seat; 10: Guide protrusion; 11: Ring groove; 12: Locking structure; 13: Locking block; 14: Lead screw; 15: Locking groove; 16: Second slide groove; 17: Operating cap; 18: First connecting rod; 19: Second connecting rod; 20: Third connecting rod; 21: Fourth connecting rod; 22: Protective cover; 23: Cover plate; 24: Wheel; 25: Telescopic foot support. Detailed Implementation

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0043] To keep the drawings concise, only the parts related to this utility model are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0044] In the description of this utility model, the term "a" not only means "only one" but can also mean "more than one". The terms "first", "second", "third", etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "perpendicular" and "parallel" do not mean absolutely perpendicular or parallel, but can be approximately perpendicular or approximately parallel.

[0045] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0046] See Figures 1 to 8 This embodiment provides a fan test bench, including a base 1, a top connector 2, several spaced columns 3 and several crossbars.

[0047] The base 1 can be a frame structure constructed from several profiles. The top connector 2 is located above the base 1, and there is a gap between the top connector 2 and the base 1. Specifically, the top connector 2 can also be a frame structure constructed from several profiles.

[0048] A support column 3 is positioned between the base 1 and the top connector 2. The bottom of the support column 3 is connected to the base 1, and the top of the support column 3 is connected to the top connector 2. The base 1 and the top connector 2 can be directly connected by the support column 3, or additional support columns 4 can be added for connection. In this embodiment, the base 1 and the top connector 2 are connected by several support columns 4. The bottom of the support column 4 is connected to the base 1, and the top of the support column 4 is connected to the top connector 2. The top connector 2 is supported above the base 1 by the support columns 4; and the several support columns 4 surround the outer perimeter of the support column 3. The support column 3 and the support columns 4 together support the top connector 2.

[0049] A first region A is formed between adjacent columns 3. Several crossbars are connected to the columns 3 to divide the first region A; the area between two adjacent crossbars in the first region A forms the installation region B. In the fan test bench of this embodiment, the crossbars are installed on the columns 3, so a crossbar must be connected to at least two columns 3 to keep it stable; a crossbar can divide only one first region A, or it can span multiple columns 3 to divide multiple first regions A; a first region A can be divided into two installation regions B by only one crossbar, or it can be divided into more than two installation regions B by multiple vertically arranged crossbars.

[0050] The fan test bench of this embodiment can be stably placed on the ground. During use, the fan to be tested can be placed in installation area B, and then secured to the column 3 and crossbar using straps or similar means (in practice, it can also be secured only to the crossbar), thus achieving proper fan stability. By using the fan test bench of this embodiment, the fan to be tested can be fixed securely without shaking during testing, thereby improving the accuracy of fan testing.

[0051] Preferably, at least a portion of the crossbar is slidably connected to the column 3; wherein, the crossbar slidably connected to the column 3 is a movable bar 5, and the movable bar 5 is provided with a locking structure 12 between at least two of the columns 3 slidably connected to it, the locking structure 12 being used to lock the relative position between the movable bar 5 and the column 3.

[0052] Specifically, in this embodiment, the movable rod 5 and the column 3 are slidably connected by a sliding structure, which includes a first sliding groove 7, a guide wheel 8, and a slide block 9. The first sliding groove 7 is provided on the column 3 along its length direction (i.e., vertical direction), and guide protrusions 10 are respectively provided on the two side walls of the first sliding groove 7 along its length direction (i.e., vertical direction). The guide wheel 8 is located in the sliding groove, and an annular groove 11 matching the guide protrusion 10 is provided on the outer side wall of the guide wheel 8. The slide block 9 is connected to the movable rod 5, and the guide wheel 8 is rotatably connected to the slide block 9. Thus, when the drive rod 5 slides up and down relative to the column 3 (which is slidably connected to it), the guide wheel 8 rolls in the first groove 7, and the guide protrusions 10 on the two side walls of the first groove 7 are exactly in the annular groove 11 of the guide wheel 8, which restricts the relative position of the guide wheel 8 and the first groove 7 in the axial direction of the guide wheel 8, thereby restricting the relative position of the slide block 9 and the column 3 in the axial direction of the guide wheel 8, and restricting the relative position of the sliding rod and the column 3 in the axial direction of the guide wheel 8.

[0053] The locking structure 12 includes a locking block 13 and a lead screw 14. The locking block 13 extends into the first slide groove 7, and the locking block 13 is provided with a locking groove 15 that matches a guide protrusion 10 on one side wall of the first slide groove 7. The slide block 9 is provided with a second slide groove 16, and the locking block 13 is slidably connected to the second slide groove 16. When the locking block 13 slides in the second slide groove 16, the locking groove 15 moves toward the guide protrusion 10 or away from the guide protrusion 10. The lead screw 14 is rotatably connected to the slide block 9; the lead screw 14 is threadedly connected to the locking block 13 and is used to drive the locking block 13 to slide in the second slide groove 16. Preferably, an operating cap 17 that rotates with the lead screw 14 can be provided on the portion of the lead screw 14 extending out of the slide block 9. Of course, other locking structures 12 can also be used in other embodiments, and there is no limitation here.

[0054] Rotating the operating cap 17 drives the lead screw 14 to rotate, causing the locking groove 15 on the locking block 13 to move away from the corresponding guide groove, thus separating the locking groove 15 from the corresponding guide protrusion 10 and unlocking the device. At this time, the movable rod 5 can be slid to adjust the size of the installation area B. When the sliding rod is adjusted to the desired position, the operating cap 17 can be rotated in the opposite direction (this reverse rotation is relative to the rotation direction during unlocking), driving the lead screw 14 to rotate, causing the locking groove 15 on the locking block 13 to move closer to the corresponding guide protrusion 10, thus pressing the locking groove 15 against the corresponding guide groove and locking the device.

[0055] With the cooperation of the movable rod 5 and the locking structure 12, the fan test bench of this embodiment can adjust the size of the installation area B, thereby accommodating more fans of various sizes and specifications.

[0056] Preferably, the connection points between the base 1 and several columns 3 are arranged along the sides of a polygon, and there is a connection point between the base 1 and the column 3 at each corner of the polygon; the movable rod 5 is horizontally arranged across the entire vertical plane of any side of the polygon, and the two ends of the movable rod 5 are slidably connected to the column 3 corresponding to the two endpoints of the side; the horizontal bar includes the aforementioned movable rod 5 slidably connected to the column 3 and the fixed rod 6 fixedly connected to the column 3, and a movable rod 5 is provided between two adjacent fixed rods 6 in the vertical direction.

[0057] Specifically, in this embodiment, the fan test bench includes eight uprights 3, four fixed rods 6, and eight movable rods 5. The connection between the base 1 and the eight uprights 3 is arranged along the sides of a rectangle, with four uprights 3 located at the four corners of the rectangle and the remaining four uprights 3 located at the midpoints of the four sides of the rectangle. A fixed rod 6 is horizontally arranged in each vertical plane, and a movable rod 5 is arranged on the upper and lower sides of each fixed rod 6.

[0058] The four vertical surfaces corresponding to the four sides of the rectangle described above are the mounting surfaces of the fan test bench for mounting the fan to be tested. To further utilize the space of the fan test bench, an additional mounting surface can be added. Specifically, the additional mounting surface can be horizontally positioned and located in the space above the fixing rod 6. The additional mounting surface is formed by splicing two first connecting rods 18 and two second connecting rods 19 together, wherein the two first connecting rods 18 are arranged in parallel and their ends are fixedly connected to the column 3, and the two second connecting rods 19 are arranged in parallel and their ends are connected to the first connecting rods 18, and the first connecting rods 18 and the second connecting rods 19 are perpendicular to each other. Two third connecting rods 20 and one fourth connecting rod 21 are parallel to each other and parallel to the first connecting rod 18. The fourth connecting rod 21 is located between the two third connecting rods 20, and its two ends are fixedly connected to the midpoints of the two second connecting rods 19. The two ends of the third connecting rods 20 are slidably connected to the second connecting rods 19, specifically through the aforementioned sliding structure. A locking structure 12 is provided between the third connecting rods 20 and the second connecting rods 19 to lock their relative positions. Furthermore, a connecting rod can be provided parallel to the second connecting rods 19 and located between them, with its two ends fixedly connected to the midpoints of the two first connecting rods 18. Thus, a first region A is formed between this connecting rod and the second connecting rods 19. The third connecting rods 20 and 21 are positioned horizontally within this first region A, dividing it into an installation region B for mounting the fan to be tested. Of course, in other embodiments, the additional mounting surface can be formed in other ways, and the corresponding first region A and mounting region B can also be formed in other ways, which are not limited here.

[0059] The polygon extends upwards until it reaches the position of the uppermost horizontal bar, forming a space called the first space. Preferably, the fan test bench in this embodiment also includes a protective cover 22, which covers the first space and has a gap between it and the first space; the protective cover 22 is at least partially openable.

[0060] Specifically, the protective cover 22 can be composed of multiple cover plates 23, which are detachably connected to the support column 4 and the top connector 2; when the cover plate 23 is removed, the opening is achieved. Furthermore, horizontal members can be installed between adjacent support columns 4, which enhances the strength of the frame structure in the fan test bench and facilitates the installation of the cover plates 23 (for example, when the cover plate 23 is connected via a snap-fit ​​structure, a snap-fit ​​structure can also be installed between the horizontal member and the cover plate 23). Of course, the detachable connection method of the cover plate 23 is not limited; for example, it can be achieved through a snap-fit ​​structure, or through a slider groove (a groove is provided on the support column 4, and a corresponding slider is provided on the vertically positioned side of the cover plate 23; the slider slides within the groove, and when the cover plate 23 needs to be removed, the slider on the cover plate 23 can be slid out of the groove on the column 3) to achieve a detachable connection, and so on.

[0061] Furthermore, the bottom of the base 1 is connected to wheels 24 and retractable feet 25. When the fan test bench needs to be moved, the retractable feet 25 can be raised to move the fan test bench; the wheels 24 make it easy to move the fan test bench, adjust, and transport its position. When the fan test bench does not need to be moved, the retractable feet 25 can be lowered to support the base 1, suspending the wheels 24 in the air. At this time, the weight of the fan test bench itself can be used to fix its position. Of course, in other embodiments, other methods can be used to facilitate the movement of the fan test bench while ensuring that the fan test bench does not move during operation, such as using casters with locking devices.

[0062] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they shall still fall within the protection scope of the present invention.

Claims

1. A fan test stand, characterized by, include: Base; A top connector is located above the base, and there is a gap between the top connector and the base; A number of spaced columns are arranged between the base and the top connector, the bottom of the column is connected to the base, and the top of the column is connected to the top connector; a first area is formed between adjacent columns. Several crossbars are connected to the uprights to divide the first area; the area between two adjacent crossbars in the first area forms an installation area; At least a portion of the crossbar is slidably connected to the column; The crossbar that is slidably connected to the column is a movable bar; The movable rod is provided with a locking structure between at least two of the columns slidably connected thereto, the locking structure being used to lock the relative position between the movable rod and the columns; The movable rod and the column are slidably connected by a sliding structure, the sliding structure comprising: A first sliding groove is provided on the column, and guide protrusions are respectively provided on the two side walls of the first sliding groove along the length direction of the first sliding groove; A guide wheel is disposed within the groove, and an annular groove matching the guide protrusion is provided on the outer side wall of the guide wheel; A slide block is connected to the movable rod, and the guide wheel is rotatably connected to the slide block.

2. The fan test stand of claim 1, wherein, The locking structure includes: A locking block extends into the first sliding groove, and the locking block is provided with a locking groove that matches the guide protrusion; the slide block is provided with a second sliding groove, and the locking block is slidably connected to the second sliding groove. When the locking block slides in the second sliding groove, the locking groove moves toward the direction closer to the guide protrusion or moves away from the guide protrusion. A lead screw is rotatably connected to the slide block; the lead screw is threadedly connected to the locking block and is used to drive the locking block to slide within the second slide groove.

3. The fan test stand of claim 1, wherein, The connection points between the base and the several columns are arranged along the sides of a polygon, and there is a connection point between the base and the column at each corner of the polygon.

4. The fan test stand of claim 1, wherein, The connection points between the base and the several columns are arranged along the sides of a polygon, and there is a connection point between the base and the column at each corner of the polygon. The movable rod is located horizontally across the entire vertical plane containing any one side of the polygon, and the two ends of the movable rod are slidably connected to the columns corresponding to the two endpoints of this side.

5. The fan test stand of claim 1, wherein, The crossbar includes a movable rod that is slidably connected to the column and a fixed rod that is fixedly connected to the column; In the vertical direction, a movable rod is provided between two adjacent fixed rods.

6. The fan test stand of claim 3, wherein, It also includes protective shields; The polygon extends upwards until it reaches the position of the uppermost horizontal bar, and the space formed therein is the first space; The protective cover covers the first space and has a gap between it and the first space.

7. The fan test stand of claim 6, wherein, The protective shield is at least partially openable.

8. The fan test stand of claim 1, wherein, The base is equipped with wheels and retractable foot supports at its bottom.

Images