Blade height detection device of axial flow fan blade
By designing the blade height detection device of the axial flow air blades, the accuracy of blade height detection is solved by using the coordination of limit steps and detection blocks, the detection efficiency and shipment quality are improved, and the failure of the air conditioner external unit is avoided.
Patent Information
- Application Number
- CN202422345123.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the prior art, it is impossible to accurately determine whether the blade height of the axial flow blade is super high, which may lead to abnormal noise or failure of the air conditioner external unit after installation.
A blade height detection device for axial air blades is designed, including a base, a slider and a blade rotating seat. The limit steps are used to cooperate with the limit orifice plate to avoid interference, and the detection blocks of different heights are hinged on the slider to quickly determine whether the blade height meets the requirements.
It improves the accuracy and efficiency of blade height detection, ensures shipment quality, avoids the air conditioning external unit problems caused by blade height deviation, and has good economic and practical value.
Smart Images
Figure CN223122111U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of air-conditioning fan manufacturing, and particularly relates to a blade height detection device for an axial-flow fan blade. Background Art
[0002] In an air-conditioning system, an axial-flow fan blade is usually used as the fan of the outdoor unit. The quality of the axial-flow fan blade directly affects the heat exchange quality of the outdoor unit. In actual production, affected by the mold, there are certain deviations in the blade height of the axial-flow fan blades produced by the injection molding equipment. When the blade height deviation exceeds the allowable error range, it will cause the axial-flow fan blade to hit the housing of the air-conditioning outdoor unit after installation, resulting in abnormal noise or failure of the outdoor unit; a limiting orifice plate is arranged in the shaft hole of the axial-flow fan blade, and the limiting orifice plate has a through hole, and the diameter of the through hole is smaller than the diameter of the shaft hole.
[0003] Currently, the measurement of the blade height is carried out by a measuring ruler, and the measurement accuracy is relatively low, and it depends on the operation of the measurement personnel, and it is impossible to accurately judge whether the blade height is too high. Content of the Utility Model
[0004] The purpose of the utility model is to overcome the deficiency in the prior art that it is impossible to accurately judge whether the blade height is too high, and to provide a blade height detection device for an axial-flow fan blade.
[0005] The utility model provides a blade height detection device for an axial-flow fan blade, including
[0006] a base, on which a guide rail is arranged;
[0007] a sliding member, which is slidably connected with the guide rail, and several detection blocks with different heights are hinged to the sliding member;
[0008] a blade rotating seat, which is located at the end of the guide rail, and the blade rotating seat is connected with the base. The blade rotating seat can be rotatably connected with the axial-flow fan blade. The blade rotating seat has a rotating shaft, and a limiting step is arranged on the rotating shaft, and the limiting step can abut against the axial-flow fan blade.
[0009] A blade height detection device for an axial flow fan of the present utility model. A fan rotating seat is fixedly connected to a base. The fan rotating seat is adaptively connected to the shaft hole of the axial flow fan through a rotating shaft, enabling the axial flow fan to rotate on the rotating seat. A limiting step is provided on the rotating shaft, and by abutting against a limiting hole plate through the limiting step, a gap is formed between the axial flow fan and the fan rotating seat to avoid interference between the axial flow fan and the fan rotating seat. The fan rotating seat is arranged at the end of a guide rail, and a sliding member is slidably connected to the guide rail. By sliding the sliding member on the guide rail, a detection block can detect the blade height of the axial flow fan at an appropriate position, enabling the height detection device to be used for detecting axial flow fans with different diameters. A plurality of detection blocks with different heights are hinged to the sliding member, and the detection personnel can select a detection block according to the required height to detect the blade height of the axial flow fan. After selecting an appropriate detection block, the selected detection block is rotated to a vertical state. When the axial flow fan rotates, if the blade height of the axial flow fan is too high, the blade will hit the detection block, enabling the detection personnel to quickly determine whether the blade specification of the axial flow fan meets the requirements.
[0010] Preferably, the fan rotating seat includes a first support column and a second support column, the rotating shaft includes a first rotating shaft and a second rotating shaft, the first support column is rotatably connected to the first rotating shaft, the second support column is rotatably connected to the second rotating shaft, the first rotating shaft and the second rotating shaft are respectively provided with the limiting steps, and the diameter of the first rotating shaft is smaller than the diameter of the second rotating shaft.
[0011] By respectively arranging a first support column and a second support column at both ends of the guide rail and setting the diameters of the first rotating shaft and the second rotating shaft to be different sizes, the axial flow fan with different inner diameters of the rotating shaft can be detected by using the height detection device, improving the operation efficiency and the versatility of the detection device. By respectively arranging the first support column and the second support column at both ends of the guide rail, interference during the rotation of the axial flow fan can be avoided, and the detection speed can be increased. The first rotating shaft is arranged along the axis of the first support column, and the second rotating shaft is arranged along the axis of the second support column. The first rotating shaft or the second rotating shaft can be adapted to shaft holes with different apertures. By rotatably connecting the first rotating shaft to the first support column and the second rotating shaft to the second support column, the axial flow fan can rotate more easily, enabling the operator to more quickly detect the blade height of the axial flow fan.
[0012] Preferably, the sliding member includes a slider and a groove structure member. The slider is connected to the groove structure member, and the detection block is hinged to the groove structure member. All the detection blocks are located in the groove of the groove structure member.
[0013] The operator selects a detection block with an appropriate height and rotates the detection block to a vertical state. The groove structure member is a U-shaped through groove, which is convenient for adjusting the detection block.
[0014] Preferably, the groove structural member is provided with a hinge shaft, the hinge shaft penetrates through the end of the detection block, and all the detection blocks are rotatably connected to the hinge shaft.
[0015] A number of detection blocks are rotatably connected to the hinge shaft, so that the operator can quickly select the detection block with the required height, which is convenient for the operator to observe and operate.
[0016] Preferably, along the axial direction of the hinge shaft, the heights of the detection blocks decrease in sequence.
[0017] It is convenient for the operator to select the detection block.
[0018] Preferably, the groove structural member is connected to the side surface of the slider; along the sliding direction of the guide rail, the groove structural members are respectively provided on the opposite sides of the slider.
[0019] The two groove structural members are respectively arranged on the opposite sides in the sliding direction of the slider, reducing the probability of the detection block being impacted and skewed, and ensuring the accuracy of the detection result.
[0020] Preferably, the slider is provided with a limiting member, and the limiting member can abut against the guide rail.
[0021] The limiting member can fix the relative positions of the guide rail and the slider, so that the detection block always remains in a suitable position for detection.
[0022] Preferably, the base is a strip-shaped structural member, and the wind blade rotating seat is detachably connected to the base.
[0023] The strip-shaped base is convenient to carry. The wind blade rotating seat is detachably connected to the base. By replacing the wind blade rotating seat with different shaft holes, the versatility of the height detection device is enhanced.
[0024] Preferably, the detection block is etched with a specification label.
[0025] The operator can quickly select a suitable detection block through the specification label.
[0026] Preferably, an anti-slip support member is provided at the bottom of the base.
[0027] An anti-slip support member is provided at the bottom of the support member to prevent the base from shifting when the wind blade rotates. The anti-slip support member can be a suction cup member or an anti-slip rubber structural member.
[0028] Compared with the prior art, the beneficial effects of the present utility model are:
[0029] 1. The utility model is a blade height detection device for an axial flow fan blade. A fan blade rotating seat is fixedly connected to a base. The fan blade rotating seat is adapted to be connected to the shaft hole of the axial flow fan blade through a rotating shaft, so that the axial flow fan blade rotates on the rotating seat. A limited step is arranged on the rotating shaft. The limited step abuts against a limited orifice plate, so that the axial flow fan blade and the fan blade rotating seat have a gap, so as to avoid interference between the axial flow fan blade and the fan blade rotating seat; the fan blade rotating seat is arranged at the end of a guide rail, and a sliding member is slidably connected to the guide rail. The detection block slides on the guide rail through the sliding member so that the detection block is at an appropriate position. The height of the axial flow fan blade is detected at the position of the axial flow fan blade, so that the height detection device can be used for the detection of axial flow fan blades with different diameters; a number of detection blocks with different heights are hinged on the sliding member, and the detection personnel can select the detection block according to the required height to detect the blade height of the axial flow fan blade; after selecting a suitable detection block, the selected detection block is rotated to a vertical state. When the axial flow fan blade rotates, if the blade height of the axial flow fan blade is too high, the blade will hit the detection block, so that the detection personnel can quickly determine whether the blade specifications of the axial flow fan blade meet the requirements;
[0030] 2. The utility model provides a blade height detection device for an axial flow fan blade, which has a simple structure and is easy to use. The axial flow fan blade is rotatably connected to the fan blade rotating seat through a rotating shaft, and a limit step abuts against a limit orifice plate as a reference surface for height detection; the sliding part can be adjusted on the guide rail so that the sliding part is located directly below the axial flow fan blade detection point; the operator selects a detection block of appropriate height, adjusts the detection block to a vertical state, and drives the axial flow fan blade to rotate. By judging whether the blade collides with the detection block, the blade height is quickly detected, thereby improving detection efficiency, ensuring delivery quality, and having good economic value and practical value. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 This is a schematic diagram of the structure of a blade height detection device for an axial flow fan blade according to the utility model;
[0032] Figure 2 It is a structural schematic diagram of the sliding member of the utility model;
[0033] Figure 3 It is a structural schematic diagram of the position limiting member of the utility model;
[0034] Figure 4 It is a structural schematic diagram of the detection block of the utility model.
[0035] Markings in the figure:
[0036] 1 - Base, 2 - Guide rail, 3 - Wind blade rotating seat, 31 - First support column, 32 - First rotating shaft, 33 - Second support column, 34 - Second rotating shaft, 4 - Limiting step, 5 - Sliding member, 51 - Slide block, 52 - Groove structure member, 53 - Hinge shaft, 6 - Detection block, 61 - Specification label, 7 - Anti-slip support member, 8 - Limiting member, 9 - End face step. Detailed implementation manners
[0037] The following further describes the present utility model in detail with reference to specific embodiments. However, this should not be construed as limiting the scope of the above-mentioned subject matter of the present utility model to the following embodiments. Any technology implemented based on the content of the present utility model belongs to the scope of the present utility model.
[0038] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of the orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product / device / device of the present utility model is habitually used. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, so as to facilitate technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.
[0039] In addition, if terms such as "horizontal", "vertical", "hanging", "parallel", etc. appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but can be slightly inclined or have a deviation. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in the directions of "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still play its role in the solution of the present utility model.
[0040] In addition, the expressions such as "first", "second", "third", etc. in the terms are only used to distinguish the description of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.
[0041] In addition, in the description of the embodiments of the present utility model, "several", "multiple", and "a plurality of" represent at least two. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even more than 9.
[0042] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, when the terms "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, and threaded connection. Such a connection can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.
[0043] Embodiment 1
[0044] As Figures 1 - 4 shown, a blade height detection device for an axial flow fan blade includes
[0045] a base 1, and a guide rail 2 is provided on the base 1;
[0046] a sliding member 5, the sliding member 5 is slidably connected to the guide rail 2, and a plurality of detection blocks 6 with different heights are hinged to the sliding member 5;
[0047] a fan blade rotating seat 3, the fan blade rotating seat 3 is located at the end of the guide rail 2, the fan blade rotating seat 3 is connected to the base 1, the fan blade rotating seat 3 can be rotatably connected to the axial flow fan blade, the fan blade rotating seat 3 has a rotating shaft, and a limiting step 4 is provided on the rotating shaft, and the limiting step 4 can abut against the axial flow fan blade.
[0048] A wind blade rotating seat 3 is fixedly connected to the base 1. The wind blade rotating seat 3 is adaptively connected to the shaft hole of the axial flow wind blade through a rotating shaft, enabling the axial flow wind blade to rotate on the rotating seat. A limiting step 4 is provided on the rotating shaft. By abutting the limiting step 4 against the limiting orifice plate, a gap is formed between the axial flow wind blade and the wind blade rotating seat 3 to avoid interference between the axial flow wind blade and the wind blade rotating seat 3. The wind blade rotating seat 3 is arranged at the end of the guide rail 2. A sliding member 5 is slidably connected to the guide rail 2. By sliding the sliding member 5 on the guide rail 2, the detection block 6 can be positioned at an appropriate location to detect the blade height of the axial flow wind blade, enabling the height detection device to be used for detecting axial flow wind blades with different diameters. A number of detection blocks 6 with different heights are hinged to the sliding member 5, and the operator can select the detection block 6 according to the required height to detect the blade height of the axial flow wind blade. After selecting the appropriate detection block 6, the selected detection block 6 is rotated to the vertical state. When the axial flow wind blade rotates, if the blade height of the axial flow wind blade is too high, the blade will strike the detection block 6, enabling the operator to quickly determine whether the blade specifications of the axial flow wind blade meet the requirements.
[0049] In one or several embodiments, the wind blade rotating seat 3 includes a first support column 31 and a second support column 33. The first support column 31 and the second support column 33 are respectively located at both ends of the guide rail 2. The first support column 31 has a first rotating shaft 32 rotatably arranged along the axis of the first support column 31. The first rotating shaft 32 passes through the shaft hole of the axial flow wind blade to ensure smooth rotation of the axial flow wind blade mounted on the first support column 31. By providing a limiting step 4 on the first rotating shaft, interference between the axial flow wind blade and the first support column 31 is avoided. The second support column 33 has a second rotating shaft 34 rotatably arranged along the axis of the second support column 33. The second rotating shaft 34 passes through the shaft hole of the axial flow wind blade to ensure smooth rotation of the axial flow wind blade mounted on the second support column 33. By providing a limiting step 4 on the first rotating shaft, interference between the axial flow wind blade and the first support column 31 is avoided. By setting the diameter of the first rotating shaft 32 to be smaller than the diameter of the second rotating shaft 34, the first support column 31 and the second support column 33 can be respectively used for detecting axial flow wind blades with different shaft hole diameters, enabling the blade height detection device to be applicable to the blade height detection of various specifications of axial flow wind blades. The second rotating shaft 34 is used for detecting axial flow wind blades with a shaft hole diameter of 12 mm, and the first rotating shaft 32 is used for detecting axial flow wind blades with a shaft hole diameter of 8 mm. An end face step 9 is further provided on the first rotating shaft 32 to prevent interference of the axial flow wind blade.
[0050] In an alternative embodiment, the first rotating shaft 32 is rotatably connected to the first support shaft, and the second rotating shaft 34 is rotatably connected to the second support column 33, ensuring that the axial flow fan blades can rotate smoothly after being installed on the blade rotating seat 3; in some embodiments, both the first rotating shaft 32 and the second rotating shaft 34 are optical shafts, the first rotating shaft 32 is fixedly connected to the first support column 31, and the second rotating shaft 34 is rotatably connected to the second support column 33. By the relative rotation between the axial flow fan blades and the optical shaft, the axial flow fan blades rotate around the optical shaft as the axis.
[0051] In an alternative embodiment, the sliding member 5 is composed of a slider 51 and a groove structure member 52. The slider 51 is connected to the groove structure member 52, and the detection block 6 is hinged to the groove structure member 52. All the detection blocks 6 are located in the groove of the groove structure member 52; the groove structure member 52 facilitates the placement of the detection block 6 and can limit the detection block 6, restricting the rotation angle of the detection block 6, making it easier for the operator to observe and select the detection block 6.
[0052] In an alternative embodiment, the groove structure member 52 is provided with a hinge shaft 53. The hinge shaft 53 penetrates through the end of the detection block 6, and all the detection blocks 6 are rotatably connected to the hinge shaft 53. The groove structure member 52 is a U-shaped through groove, and the hinge shaft 53 is arranged in the U-shaped through groove. The two ends of the hinge shaft 53 are respectively connected to the two side walls of the U-shaped through groove, so that the hinge shaft 53 is located in the U-shaped through groove. The hinge shaft 53 penetrates through the end of the detection block 6, enabling the detection block 6 to rotate in the U-shaped through groove. The operator selects a detection block 6 with an appropriate height according to the usage requirements and toggles the detection block 6 to the vertical state, so that the detection block 6 is used to detect the blade height of the axial flow fan blades. The hinge shafts 53 all pass through the ends of the detection blocks 6, facilitating the rotation of the detection blocks 6.
[0053] In an alternative embodiment, a number of detection blocks 6 are rotatably connected to the hinge shaft 53, and along the axial direction of the hinge shaft 53, the heights of the detection blocks 6 decrease in sequence, facilitating the operator to select an appropriate detection block 6.
[0054] In an alternative embodiment, the groove structure member 52 is connected to the side surface of the slider 51; along the sliding direction of the guide rail 2, groove structure members 52 are respectively provided on the opposite two sides of the slider 51; by providing two groove structure members 52, it is convenient to use the blade rotating seats 3 at both ends of the guide rail 2. The two groove structure members 52 are respectively arranged at both ends in the sliding direction of the guide rail 2; the hinge shaft 53 is perpendicular to the guide rail 2, so that the detection block 6 can still remain vertical after being impacted by the blade.
[0055] In one or several embodiments, the sliding member 5 is provided with a limiting member 8, and the limiting member 8 can abut against the guide rail 2 to fix the sliding member 5 on the guide rail 2 and make it difficult to move.
[0056] In one or several embodiments, the base 1 is a strip-shaped structural member, which reduces the mass of the base 1 and is convenient to carry. The blade rotating seat 3 is detachably connected to the base 1, and the blade rotating seat 3 suitable for different specifications of axial-flow blades can be replaced to improve the versatility of the blade height detection device.
[0057] In one or several embodiments, an anti-slip support member 7 is provided at the bottom of the base 1. The anti-slip support member 7 is made of a rubber structural member, which can prevent the base 1 from slipping and improve the blade height detection efficiency. In some embodiments, the anti-slip support member 7 is a suction cup.
[0058] In one or several embodiments, a specification label 61 is etched on the outer surface of the detection block 6, enabling the operator to quickly identify and select the detection block 6.
[0059] Specifically, the detection block 6 is a sheet-shaped structural member with high hardness.
[0060] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A blade height detection device for an axial flow fan blade, characterized in that, including a base (1) provided with a guide rail (2) thereon; a sliding member (5) slidably connected to the guide rail (2), and the sliding member (5) is hinged with a plurality of detection blocks (6) of different heights; a blade rotating seat (3) located at the end of the guide rail (2), the blade rotating seat (3) is connected to the base (1), the blade rotating seat (3) can be rotatably connected to an axial flow blade, the blade rotating seat (3) has a rotating shaft, and a limiting step (4) is provided on the rotating shaft, and the limiting step (4) can abut against the axial flow blade.
2. The blade height detection device of an axial flow fan blade according to claim 1, characterized in that, The blade rotating seat (3) includes a first support column (31) and a second support column (33), the rotating shaft includes a first rotating shaft (32) and a second rotating shaft (34), the first support column (31) is rotatably connected to the first rotating shaft (32), the second support column (33) is rotatably connected to the second rotating shaft (34), the limiting steps (4) are respectively provided on the first rotating shaft (32) and the second rotating shaft (34), and the diameter of the first rotating shaft (32) is smaller than the diameter of the second rotating shaft (34).
3. The blade height detection device for an axial flow fan blade according to claim 1, characterized in that, The sliding member (5) includes a slider (51) and a groove structure member (52), the slider (51) is connected to the groove structure member (52), the detection block (6) is hinged to the groove structure member (52), and all the detection blocks (6) are located in the groove of the groove structure member (52).
4. The blade height detection device of an axial flow fan blade according to claim 3, characterized in that The groove structure member (52) is provided with a hinge shaft (53), the hinge shaft (53) penetrates through the end of the detection block (6), and all the detection blocks (6) are rotatably connected to the hinge shaft (53).
5. The blade height detection device of an axial flow fan blade according to claim 4, wherein Along the axial direction of the hinge shaft (53), the heights of the detection blocks (6) decrease in sequence.
6. The blade height detection device of an axial flow fan blade according to claim 3, characterized in that, The groove structure member (52) is connected to the side surface of the slider (51); along the sliding direction of the guide rail (2), the groove structure members (52) are respectively provided on the opposite sides of the slider (51).
7. The blade height detection device for an axial flow fan blade according to claim 1, characterized in that, The sliding member (5) is provided with a limiting member (8) which can abut against the guide rail (2).
8. The blade height detection device for an axial flow fan blade according to claim 1, characterized in that, The base (1) is a strip-shaped structural member, and the blade rotating seat (3) is detachably connected to the base (1).
9. The blade height detection device of an axial flow fan blade according to claim 1, characterized in that, The detection block (6) is etched with a specification mark (61).
10. A blade height detection device for an axial flow fan blade according to any one of claims 1-9, characterized in that, The bottom of the base (1) is provided with an anti-slip support member (7).