Fan rotating speed sensor

Abstract

The utility model discloses a fan rotating speed sensor, which belongs to the field of rotating speed sensors, solves the problem that the existing rotating speed sensor cannot measure the speed of an assembled fan, and comprises a detection seat, a protective shell, a conduction rod and a linkage rod, the protective shell is fixedly arranged on one side of the surface of the detection seat, and the transmission rod is arranged on the other side of the surface of the detection seat. The counting mechanism and the zeroing mechanism are arranged, so that the number of turns of rotation of the conduction rod can be automatically calculated, then the specific number of turns is displayed, and under the condition that data such as materials, fan blade shapes and positions are synchronous, the number of turns of rotation of the conduction rod can be automatically calculated. The rotating speed of the fan can be detected only by rotating the counting mechanism, so that the equipment can detect the rotating speed of the assembled fan, the overall detection steps are simplified, the number in the counting mechanism can be returned to zero subsequently, and the equipment can be reused conveniently.

Description

Technical Field

[0001] The utility model belongs to the field of rotation speed sensors, and in particular relates to a fan rotation speed sensor. Background Art

[0002] The speed sensor is a sensor that converts the speed of a rotating object into electrical output. The speed sensor is an indirect measuring device and can be manufactured by mechanical, electrical, magnetic, optical and hybrid methods. According to the different signal forms, the speed sensor can be divided into analog and digital types. When detecting the speed of the fan output shaft, the corresponding speed sensor is used for detection.

[0003] The Chinese utility model patent is CN202649224U, which discloses a speed sensor, which includes a detection end cover, a magnetic core, a permanent magnet, a wire and a detector in sequence. The magnetic core is surrounded by a conductive coil, and the wire is connected to the detector in sequence through a dust plug and a sealing sleeve. The dust plug and the sealing sleeve are tightly installed with the inner wall of the sensor housing. The housing of the sensor is provided with a mounting groove, and the dust plug is provided with a mounting protrusion for fitting with the mounting groove;

[0004] The above design targets the existing speed sensor and adopts dust plugs and sealing strips to make the device itself have good dust and water proof effects. However, whether it is this design or the existing speed sensor, when it comes to the assembled fan, it is impossible to flexibly and stably detect the speed of the fan itself. It is still necessary to disassemble the fan casing and install and fit the components to the fan output shaft to complete the detection. Although this method is stable, the overall efficiency is greatly reduced when used. It takes a certain amount of time to disassemble and assemble the fan casing, which affects the working efficiency of the equipment itself.

[0005] In order to solve the above problems, a fan speed sensor is proposed in the present application. Utility Model Content

[0006] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A fan speed sensor comprises a detection seat, a protective shell, a conduction rod and a linkage rod, wherein a protective shell is fixedly mounted on one side of the detection seat surface, a conduction rod is rotatably mounted on the top of the protective shell, a linkage rod is arranged inside the protective shell, and the linkage rod is parallel to the conduction rod; a counting mechanism is fixedly mounted on the outside of the conduction rod, and the counting mechanism comprises a toggle disk, a toggle rod, a display wheel, a tooth block and a reset wheel; a toggle disk is fixedly mounted on the outside of the conduction rod, a display wheel is equidistantly rotatably mounted on one side of the conduction rod, toggle rods are symmetrically fixedly mounted on one side of the display wheel and the toggle disk, a tooth block is fixedly mounted on the side of the display wheel, and a reset wheel is fixedly mounted on the side of the tooth block; the counting mechanism is used to automatically count according to the number of turns of the conduction rod; a zeroing mechanism is fixedly mounted on the outside of the linkage rod, and the zeroing mechanism is used to assist the counting mechanism in working and facilitate the zeroing of the numbers calculated inside the counting mechanism; a collecting mechanism is fixedly mounted on the top of the conduction rod, and the collecting mechanism is used to provide power for the operation and rotation of the conduction rod according to the size of the wind force of the fan.

[0009] As a preferred technical solution of the utility model, the display wheels are provided in three groups, and the spacing between the three groups of display wheels is greater than the length of the toggle rod itself.

[0010] As a preferred technical solution of the utility model, numbers are arranged in order of size on the outer surface of the display wheel.

[0011] As an optimal technical solution of the utility model, the zeroing mechanism includes a pressing assembly, a rotating frame, a bracket, an engaging block, a bonding block and a torsion spring. The engaging block is equidistantly rotatably installed on the outer surface of the linkage rod, the bracket is symmetrically fixedly installed at both ends of the linkage rod, the rotating frame is fixedly installed at the end of the bracket, the rotating frame is rotatably connected to the protective shell, the bonding block is equidistantly fixedly installed on the side of the rotating frame, the torsion spring is sleeved on one side of the outside of the rotating frame, and the pressing assembly is fixedly installed on one side of the inside of the protective shell.

[0012] As a preferred technical solution of the utility model, the pressing assembly is composed of a pressing rod, a housing, a pressing plate and a first spring, and an arc-shaped notch is provided inside the pressing plate.

[0013] As an optimal technical solution of the utility model, the collecting mechanism includes a connecting ring, a connecting rod and a collecting plate, the connecting ring is fixedly installed on the top of the conductive rod, the connecting rod is fixedly installed equidistantly outside the connecting ring, and the collecting plate is fixedly installed on the end of the connecting rod.

[0014] As a preferred technical solution of the present utility model, the collecting plate is hemispherical in shape as a whole.

[0015] As a preferred technical solution of the utility model, the protective shell is integrally installed at a position deviating from the center line of the detection seat, and a fan mounting seat is provided on the surface of the detection seat.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) In the present invention, by setting a counting mechanism and a zeroing mechanism, the number of turns of the conduction rod can be automatically calculated, and then the specific number of turns can be displayed. When the data such as material, blade shape, and position are synchronized, the rotation speed of the fan itself can be detected, so that the device can detect the rotation speed of the fan itself after assembly, simplifying the overall detection steps, and the numbers inside the counting mechanism can be reset to zero later, which is convenient for repeated use of the device;

[0018] (2) In the present invention, by setting up a collection mechanism, the wind generated by the fan can be collected, and the collected wind is used to provide power for the operation of the conduction rod. The size of the wind force is calculated according to the number of circles the conduction rod rotates within a certain period of time, making the detection effect of the equipment itself more perfect, and there is no need to connect an additional power supply, and the wind power can be directly used for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the internal structure of the protective shell of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the external structure of the linkage rod and the transmission rod of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the counting mechanism in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the zeroing mechanism in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the collecting mechanism in the utility model;

[0025] Figure 7 It is a structural schematic diagram of the zeroing mechanism of the utility model when it is working.

[0026] The corresponding relationship between the various figure labels and component names in the figure is as follows:

[0027] 1. Detection seat; 2. Protective shell; 3. Conducting rod; 4. Linkage rod; 5. Counting mechanism; 51. Toggle plate; 52. Toggle rod; 53. Display wheel; 54. Tooth block; 55. Reset wheel; 6. Zeroing mechanism; 61. Pressing assembly; 62. Rotating frame; 63. Bracket; 64. Engaging block; 65. Fitting block; 66. Torsion spring; 7. Collecting mechanism; 71. Connecting ring; 72. Connecting rod; 73. Collecting plate. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0031] Depend on Figure 1 , Figure 2 and Figure 3 As shown, a fan speed sensor includes a detection seat 1, a protective shell 2, a transmission rod 3 and a linkage rod 4. The detection seat 1 has a protective shell 2 fixedly mounted on one side of the surface, and the transmission rod 3 is rotatably mounted on the top of the protective shell 2. The protection shell 2 is provided with a linkage rod 4 inside the protective shell 2, and the linkage rod 4 is parallel to the transmission rod 3. The transmission rod 3 is fixedly mounted with a counting mechanism 5 outside, and the counting mechanism 5 includes a toggle plate 51, a toggle rod 52, a display wheel 53, a tooth block 54 and a reset wheel 55. The transmission rod 3 is fixedly mounted with a toggle plate 51, and the transmission rod 3 is equidistantly rotatably mounted on one side of the outside of the display wheel 53. The display wheel A toggle rod 52 is symmetrically fixedly installed on one side of 53 and the toggle plate 51, a tooth block 54 is fixedly installed on the side of the display wheel 53, and a reset wheel 55 is fixedly installed on the side of the tooth block 54. The counting mechanism 5 is used to automatically count according to the number of rotations of the conduction rod 3. A zeroing mechanism 6 is fixedly installed on the outside of the linkage rod 4. The zeroing mechanism 6 is used to assist the counting mechanism 5 in working and facilitate the zeroing of the numbers calculated inside the counting mechanism 5. A collecting mechanism 7 is fixedly installed on the top of the conduction rod 3. The collecting mechanism 7 is used to provide power for the operation and rotation of the conduction rod 3 according to the size of the wind force of the fan.

[0032] During use, the fan to be tested is placed on the surface of the test seat 1, and then the fan is started to blow the collection mechanism 7. Through the use of the collection mechanism 7, the collection mechanism 7 drives the conduction rod 3 to rotate together, providing power for the operation of subsequent components. When the conduction rod 3 rotates, the counting mechanism 5 will automatically operate. Every time the conduction rod 3 rotates one circle, the toggle rod 52 on the side of the toggle disk 51 will rotate one circle synchronously, and the toggle rod 52 will automatically mesh with the meshing block 64 when it rotates, driving the meshing block 64 to rotate a certain angle. The meshing block 64 and the tooth block 54 are already meshed with each other, and the meshing block 64 will drive the tooth block 54 to rotate synchronously, so that the display wheel 53 rotates a certain angle together, so as to achieve the purpose of toggling the number displayed on the top of the display wheel 53 When the display wheel 53 rotates a complete circle, the number on the surface of the display wheel 53 will show zero, and a toggle rod 52 is also installed on the side of the display wheel 53. The toggle rod 52 will also drive the corresponding meshing block 64 to rotate, and the rotation of each group of display wheels 53 can be provided. It is convenient to display the corresponding number according to the number of circles of rotation of the conduction rod 3 itself, and the wind force can be detected. Once the wind force is known, the speed of the fan itself can be detected when the data such as material, fan blade shape, and position are synchronized. After the detection is completed, the number displayed by the counting mechanism 5 can be reset to zero by using the zeroing mechanism 6, which is convenient for subsequent repeated use, so that the equipment is more convenient and stable when measuring the speed of the assembled fan.

[0033] By the attached Figure 4 As shown, in this embodiment, there are three groups of display wheels 53, and the spacing between the three groups of display wheels 53 is greater than the length of the toggle rod 52 itself. During use, by controlling the spacing between the display wheels 53, the toggle rod 52 is prevented from toggling the side display wheels 53 when rotating, so that the detected data is more accurate.

[0034] By the attached Figure 4 As shown, in this embodiment, the outer surface of the display wheel 53 is provided with numbers in order of size. During use, according to the number of rotations of the conduction rod 3 itself, the display wheel 53 will automatically display the number of rotations, which is convenient for staff to observe.

[0035] By the attached Figure 5 As shown, in this embodiment, the zeroing mechanism 6 includes a pressing assembly 61, a rotating frame 62, a bracket 63, an engaging block 64, a bonding block 65 and a torsion spring 66. The engaging block 64 is equidistantly rotatably installed on the outer surface of the linkage rod 4, the bracket 63 is symmetrically fixedly installed at both ends of the linkage rod 4, the rotating frame 62 is fixedly installed at the end of the bracket 63, the rotating frame 62 is rotatably connected to the protective shell 2, the bonding block 65 is equidistantly fixedly installed on the side of the rotating frame 62, the torsion spring 66 is sleeved on the outer side of the rotating frame 62, and the pressing assembly 61 is fixedly installed on the inner side of the protective shell 2.

[0036] During use, by pressing the pressing component 61, the pressing component 61 pushes the linkage rod 4, causing the linkage rod 4 to shift based on the rotating frame 62, releasing the meshing between the meshing block 64 and the corresponding tooth block 54, and at the same time allowing the overall angle of the bonding block 65 to tilt upward, and the reset wheel 55 will roll along the outer surface of the bonding block 65. Because the reset wheel 55 itself is a cam shape, the reset wheel 55 will automatically calibrate under the push of the bonding block 65, so that the raised part of the reset wheel 55 is vertically upward. At this time, the number on the surface of the display wheel 53 is zero, and the number is reset to zero.

[0037] By the attached Figure 5 As shown, in this embodiment, the pressing assembly 61 is composed of a pressing rod, a shell, a pressing plate and a first spring, and an arc-shaped groove is opened inside the pressing plate. When in use, the pressing rod is directly squeezed, which will drive the pressing plate to move synchronously. By utilizing the arc-shaped groove inside the pressing plate, the linkage rod 4 will automatically deflect to one side, which is convenient for subsequent zeroing, and the use of the first spring facilitates the rapid resetting of the pressing rod and the pressing plate.

[0038] By the attached Figure 6 As shown, in this embodiment, the collecting mechanism 7 includes a connecting ring 71, a connecting rod 72 and a collecting plate 73. The connecting ring 71 is fixedly installed on the top of the conductive rod 3, the connecting rod 72 is fixedly installed equidistantly outside the connecting ring 71, and the collecting plate 73 is fixedly installed at the end of the connecting rod 72.

[0039] During use, the wind generated by the fan is collected by using the collecting plate 73, and then the collection plate 73 drives the connecting rod 72 to rotate by the push of the wind, providing power for the rotation of the conduction rod 3, and the greater the wind force, the faster the rotation speed of the conduction rod 3 itself.

[0040] By the attached Figure 6 As shown, in this embodiment, the collecting plate 73 is hemispherical in shape as a whole, and can collect the wind generated by the fan more stably during use.

[0041] By the attached Figure 1 As shown, in this embodiment, the protective shell 2 is installed as a whole at a position deviated from the center line of the detection seat 1, and a fan mounting seat is provided on the surface of the detection seat 1. When in use, the movement trajectory of the wind generated by the fan is close to a straight line at a close distance. The protective shell 2 is installed at a position deviated from the center line, and the collecting plate 73 can collect the wind more stably.

[0042] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A fan speed sensor, comprising a detection seat (1), a protective shell (2), a conduction rod (3) and a linkage rod (4), wherein the protective shell (2) is fixedly mounted on one side of the surface of the detection seat (1), the conduction rod (3) is rotatably mounted on the top of the protective shell (2), and the linkage rod (4) is arranged inside the protective shell (2), and the linkage rod (4) is parallel to the conduction rod (3), characterized in that: The transmission rod (3) is fixedly provided with a counting mechanism (5) on the outside. The counting mechanism (5) comprises a toggle plate (51), a toggle rod (52), a display wheel (53), a tooth block (54) and a reset wheel (55). The transmission rod (3) is fixedly provided with a toggle plate (51) on the outside. The display wheel (53) is equidistantly rotatably provided on one side of the transmission rod (3). The toggle rod (52) is symmetrically fixedly provided on one side of the display wheel (53) and the toggle plate (51). The tooth block (54) is fixedly provided on the side of the display wheel (53). 4) A reset wheel (55) is fixedly mounted on the side, the counting mechanism (5) is used to automatically count according to the number of revolutions of the conduction rod (3), the linkage rod (4) is fixedly mounted with a zeroing mechanism (6) on the outside, the zeroing mechanism (6) is used to assist the counting mechanism (5) in working and facilitate the zeroing of the numbers calculated inside the counting mechanism (5), the top of the conduction rod (3) is fixedly mounted with a collecting mechanism (7), the collecting mechanism (7) is used to provide power for the operation and rotation of the conduction rod (3) according to the size of the wind force of the fan.

2. A fan speed sensor according to claim 1, characterized in that: The display wheels (53) are provided in three groups in total, and the spacing between the three groups of display wheels (53) is greater than the length of the toggle rod (52) itself.

3. A fan speed sensor according to claim 1, characterized in that: The outer surface of the display wheel (53) is provided with numbers in order of size.

4. A fan speed sensor according to claim 1, characterized in that: The zeroing mechanism (6) comprises a pressing assembly (61), a rotating frame (62), a bracket (63), an engaging block (64), an abutting block (65) and a torsion spring (66); the engaging block (64) is equidistantly rotatably mounted on the outer surface of the linkage rod (4); the bracket (63) is symmetrically fixedly mounted at both ends of the linkage rod (4); the rotating frame (62) is fixedly mounted on the end of the bracket (63); the rotating frame (62) is rotatably connected to the protective shell (2); the abutting block (65) is equidistantly fixedly mounted on the side of the rotating frame (62); the torsion spring (66) is sleeved on one side of the outside of the rotating frame (62); and the pressing assembly (61) is fixedly mounted on one side of the inside of the protective shell (2).

5. A fan speed sensor according to claim 4, characterized in that: The pressing assembly (61) is composed of a pressing rod, a shell, a pressing plate and a first spring, and an arc-shaped notch is provided inside the pressing plate.

6. A fan speed sensor according to claim 1, characterized in that: The collecting mechanism (7) comprises a connecting ring (71), a connecting rod (72) and a collecting plate (73); the connecting ring (71) is fixedly mounted on the top of the conducting rod (3); the connecting rod (72) is fixedly mounted at equal distances outside the connecting ring (71); and the collecting plate (73) is fixedly mounted on the end of the connecting rod (72).

7. A fan speed sensor according to claim 6, characterized in that: The collecting plate (73) is in a hemispherical shape as a whole.

8. The fan speed sensor according to claim 1, characterized in that: The protective shell (2) is integrally mounted on the detection seat (1) at a position deviating from the center line, and a fan mounting seat is provided on the surface of the detection seat (1).

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