Handheld blade length detection device

Abstract

The utility model provides a handheld blade length detection device which comprises a holding frame body, a clamping plate is arranged on the holding frame body, one end of the clamping plate is hinged to the holding frame body, the other end of the clamping plate can be opened, a passing gap is formed between the clamping plate and the holding frame body and used for containing a blade, and a rotatable friction roller is arranged on the side, close to the holding frame body, of the clamping plate. And a friction wheel driving motor with an encoder is arranged at one end of the friction roller, so that the problems of large error and poor consistency of a traditional manual blade length detection device are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of leaf area detection, especially a hand -held blade length detection device. BACKGROUND

[0002] Leaf area is an important index of crop growth and development and physiological ecology, and is also a necessary reference factor for studying crop cultivation, genetic breeding, etc. Rapid and accurate measurement of plant leaf area can effectively improve research efficiency. Since the leaf types of the same plant are similar, one of the existing leaf area detection methods is to detect the length of the blade by using a hand-held leaf length detector, and then to obtain the leaf area by bringing the measured blade long axis size into an area conversion formula.

[0003] The existing hand-held leaf length detector mainly relies on manual pulling of the blade during use to measure the length of the blade, which not only consumes time and effort, but also has problems such as uneven speed and uncertain displacement direction when manually pulling the blade, and the blade moving route is not easy to be a straight line, which finally leads to a large detection result error and poor consistency of the results of multiple measurements. SUMMARY

[0004] The utility model provides a hand -held blade length detection device, solves the problem of big error and poor consistency of the traditional manual leaf length detection device.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a hand -held blade length detection device, which comprises a holding frame body, a clamping plate is arranged on the holding frame body, one end of the clamping plate is hinged to the holding frame body, the other end of the clamping plate can be opened, a gap is arranged between the clamping plate and the holding frame body, the gap is used for placing the blade, a rotatable friction roller is arranged on the side of the clamping plate close to the holding frame body, and an encoder friction wheel driving motor is arranged at one end of the friction roller.

[0006] In the preferred scheme, a concave cavity is arranged in the clamping plate, a bearing seat is arranged in the concave cavity of the clamping plate, a rotating shaft is further arranged, one end of the rotating shaft is connected to the friction roller, a torsion sensor is further arranged, the other end of the rotating shaft is connected to the friction wheel driving motor through the torsion sensor, and the friction roller protrudes from the concave cavity opening of the clamping plate.

[0007] In the preferred scheme, the clamping plate is provided with a mounting slot hole, a telescopic buffer rod is further arranged on the side of the clamping plate close to the holding frame body, the buffer rod is slidably sleeved with the mounting slot hole, a slidable sliding block is arranged in the mounting slot hole, a screw rod part is arranged on the side of the buffer rod away from the holding frame body, the screw rod part is threadedly connected with the sliding block, a threaded adjusting block is further arranged at the end of the mounting slot hole away from the holding frame body, and a buffer spring is arranged between the adjusting block and the sliding block.

[0008] In the preferred scheme, the holding frame body is provided with a fixing block, the middle part of the fixing block is provided with a shaft rod, one end of the clamping plate is provided with a hinged sleeve part, the hinged sleeve part is rotationally sleeved with the shaft rod, the end of the clamping plate away from the friction roller is provided with a pressing lug, the pressing lug is provided with a limiting rod and a return spring, and one side of the fixing block of the holding frame body is further provided with a fixing ring, and the return spring is connected with the fixing ring.

[0009] In the preferred scheme, the holding end of the holding frame body is further provided with a control panel and a display screen.

[0010] In the preferred scheme, the holding frame body is provided with a storage assembly, the storage assembly comprises a storage groove, and the two sides of the storage groove close to the opening are provided with sliding grooves, and the sliding grooves are provided with slidable cover plates.

[0011] The utility model discloses the beneficial effects are: through the blade translation subassembly, realize the automatic measurement of leaf length, not only significantly improve the measuring speed, still greatly promote the accuracy of measurement, reduce the error that can appear in traditional manual measurement method, through the setting of buffer mechanism, can absorb and relieve impact force when the clamping plate closes and the friction roller contacts the blade, effectively protect the friction roller, the key components such as pivot and prevent damage, prolong the service life of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described below in connection with the drawings and examples.

[0013] Figure 1 It is the schematic diagram of handheld blade length detection device.

[0014] Figure 2 It is the side view of handheld blade length detection device.

[0015] Figure 3 It is the structure diagram of holding frame body.

[0016] Figure 4 It is the structure diagram of clamping plate.

[0017] Figure 5 It is the section view at clamping plate.

[0018] Figure 6 It is the section view at installation slot hole.

[0019] In the figure: holding frame 1; buffer mechanism 2; mounting slot hole 201; buffer rod 202; buffer spring 203; adjusting block 204; screw part 205; sliding plug block 206; vane translation assembly 3; friction wheel drive motor 301; bearing seat 302; torsion sensor 303; rotating shaft 304; friction roller 305; control panel 4; fixed block 5; shaft 6; clamping plate 7; hinged sleeve part 701; storage assembly 8; storage slot 801; sliding slot 802; cover plate 803; cleaning belt 804; pressure ear 9; limiting rod 10; return spring 11; fixed ring 12; display screen 13; camera 14; through gap 15. DETAILED DESCRIPTION

[0020] Embodiment 1:

[0021] As Figures 1-6 In one embodiment, a handheld vane length detection device includes a holding frame 1, the holding frame 1 is provided with a clamping plate 7, one end of the clamping plate 7 is hinged to the holding frame 1, the other end of the clamping plate 7 can be opened, a through gap 15 is provided between the clamping plate 7 and the holding frame 1, the through gap 15 is used to place a vane, a rotatable friction roller 305 is provided on the side of the clamping plate 7 close to the holding frame 1, and an encoder-equipped friction wheel drive motor 301 is provided at one end of the friction roller 305.

[0022] The friction roller 305 can be multiple or have a wider wheel surface to reduce the contact pressure with the vane and prevent damage to the vane surface.

[0023] In a preferred embodiment, a recess is provided in the clamping plate 7, a bearing seat 302 is provided in the recess of the clamping plate 7, a rotating shaft 304 is also provided, one end of the rotating shaft 304 is connected to the friction roller 305, a torsion sensor 303 is also provided, the other end of the rotating shaft 304 is connected to the friction wheel drive motor 301 through the torsion sensor 303, and the friction roller 305 protrudes out of the recess of the clamping plate 7.

[0024] The friction wheel drive motor 301 is a reduction motor, and the surface of the friction roller 305 is provided with a pattern to increase the friction force on the vane.

[0025] In a preferred embodiment, the clamping plate 7 is provided with a mounting slot hole 201, and a retractable buffer rod 202 is also provided on the side of the clamping plate 7 close to the holding frame 1, the buffer rod 202 is slidingly sleeved with the mounting slot hole 201, a slidable sliding plug block 206 is provided in the mounting slot hole 201, a screw part 205 is provided on the side of the buffer rod 202 away from the holding frame 1, the screw part 205 is threadedly connected with the sliding plug block 206, a threaded adjusting block 204 is also provided at the end of the mounting slot hole 201 away from the holding frame 1, and a buffer spring 203 is provided between the adjusting block 204 and the sliding plug block 206.

[0026] The installation slot hole 201 is a stepped hole, and the end of the buffer rod 202 is provided with a small opening, which can stop the sliding plug block 206 and prevent it from falling out.

[0027] The two ends of the buffer spring 203 are respectively abutted against the recessed groove portions of the adjusting block 204 and the sliding plug block 206, and the rotation of the adjusting block 204 can adjust the compression amount of the buffer spring 203, so as to change the contact pressure of the friction roller 305 on the blade.

[0028] In the preferred scheme, the holding frame body 1 is provided with a fixed block 5, the middle part of the fixed block 5 is provided with a shaft 6, one end of the clamping plate 7 is provided with a hinged sleeve portion 701, the hinged sleeve portion 701 is rotationally sleeved with the shaft 6, the end of the clamping plate 7 away from the friction roller 305 is provided with a pressing lug 9, the pressing lug 9 is provided with a limiting rod 10 and a return spring 11, and one side of the fixed block 5 of the holding frame body 1 is further provided with a fixed ring 12, and the return spring 11 is connected with the fixed ring 12.

[0029] In the preferred scheme, the holding end of the holding frame body 1 is further provided with a control panel 4 and a display screen 13.

[0030] The control panel 4 can be provided with a plurality of operation buttons, and the control panel 4 and the display screen 13 can also be integrated into a touch screen.

[0031] The operation method is as follows: the extension amount of the buffer rod 202 and the compression amount of the buffer spring 203 are adjusted in advance to ensure appropriate buffer force and stopping position of the clamping plate 7; when holding the end of the holding frame body 1, the fingers press the pressing lug 9 and compress the return spring 11 until the limiting rod 10 abuts against the holding frame body 1, at this time, the front end of the clamping plate 7 is raised, the holding device is stretched to the blade, the clamping plate 7 is above the blade, and the holding frame body 1 is below the blade; the clamping plate 7 is provided with a mark scale line, which is aligned with the central friction roller 305, the central friction roller 305 is aligned with the central axis of the blade, the starting point of the friction roller 305 is moved to the root of the blade, the clamping plate 7 is closed, the impact force of the buffer rod 202 when being buffered and closed is always pressed against the blade surface under the gravity of the clamping plate 7, and the buffer spring 203 is compressed to offset part of the gravity, so as to avoid that the contact pressure of the friction roller 305 is too large and the blade surface is damaged; the control panel 4 is operated, the friction wheel driving motor 301 is started, and the blade is pushed to translate by the friction force of the friction roller 305, at this time, the encoder of the friction wheel driving motor 301 records the rotation number of the friction roller 305, when the blade is driven by the friction roller 305 to pass through the gap 15, the friction roller 305 is idling, the torsion sensor 303 detects the sudden change of the torsion, determines that the blade has run a complete stroke, and the encoder stops recording the number of turns, at this time, the recorded number of turns is converted into a displacement value, which is the longest axis length of the blade. Similarly, the device can also detect the transverse width of the blade.

[0032] A camera 14 can also be installed on the holding frame body 1, which can shoot the blade after measuring the length of the blade and record the file.

[0033] Embodiment 2:

[0034] A handheld leaf length detector comprises a holding frame body 1, a buffer mechanism 2, a leaf translation assembly 3 and a storage assembly 8, one end of the top of the holding frame body 1 is provided with a control panel 4, both sides of the top of the holding frame body 1 are fixedly installed with fixed blocks 5, the inner side of the fixed block 5 is fixedly installed with shaft rods 6, the outer side of the shaft rod 6 is rotatably installed with clamping plates 7, the leaf translation assembly 3 comprises a friction wheel driving motor 301, a bearing seat 302, an encoder, a rotating shaft 304 and friction rollers 305, the friction wheel driving motor 301 and the bearing seat 302 are fixedly installed at both ends inside the clamping plate 7 respectively, the encoder is fixedly connected with the end of the output shaft of the friction wheel driving motor 301, the rotating shaft 304 is fixedly connected with the end of the encoder, and the friction rollers 305 are fixedly installed on the outer side of the rotating shaft 304.

[0035] The number of the friction rollers 305 is two, and the friction rollers 305 extend to the outer side of the clamping plate 7 through the through holes in the bottom of the clamping plate 7, and one end of the rotating shaft 304 is rotatably installed inside the bearing seat 302.

[0036] The holding frame body 1 is the core component of the detector, the holding frame body 1 integrates all electronic elements and control systems, the top is provided with the control panel 4 for inputting commands and checking measurement results, the fixed blocks 5 are used for supporting the clamping plates 7, the fixed blocks 5 are connected with the clamping plates 7 through the shaft rods 6, so that the clamping plates 7 can rotate around the shaft rods 6 to clamp the leaves, through the setting of the leaf translation assembly 3, the automatic measurement of the leaf area can be realized, the measurement speed is fast, the accuracy is high, the manual error is reduced, the friction wheel driving motor 301 provides power to drive the rotating shaft 304 to rotate, the bearing seat 302 supports the rotating shaft 304 and reduces friction and wear in the rotating process, the encoder records the rotating angle or distance of the rotating shaft 304, and then calculates the number of revolutions of the friction rollers 305, the rotating shaft 304 transmits the power of the friction wheel driving motor 301 to the friction rollers 305, the friction rollers 305 contact and roll with the leaves, and the length of the leaves is calculated through the number of revolutions of the friction rollers 305, through the ingenious layout of the friction rollers 305, the adaptation ability of the equipment is significantly enhanced, which ensures that it can easily cope with and accurately measure leaves of various widths, thereby expanding the detection range and practicality of the detector.

[0037] One end of the clamping plate 7 is fixedly installed with a pressure ear 9, the bottom of the pressure ear 9 is fixedly installed with a limiting rod 10, the outer side of the limiting rod 10 is sleeved with a return spring 11, the top of the holding frame body 1 is fixedly installed with a fixed ring 12, and the end of the return spring 11 is fixedly installed on the fixed ring 12.

[0038] The ear pressing piece 9 and the limiting rod 10 cooperate with the reset spring 11 to provide clamping force and reset function for the clamping plate 7, so as to ensure moderate clamping force and reusability, automatically reset the clamping plate 7 by using the elastic force of the spring, and reduce the use operation steps.

[0039] The buffer mechanism 2 includes a mounting slot hole 201, a buffer rod 202 and a buffer spring 203. The mounting slot hole 201 is arranged at the bottom of the clamping plate 7. The buffer rod 202 and the buffer spring 203 are arranged inside the mounting slot hole 201. The buffer rod 202 is slidingly arranged inside the mounting slot hole 201, and the top end of the buffer rod 202 is provided with an opening. The buffer spring 203 is arranged inside the buffer rod 202.

[0040] The buffer mechanism 2 can weaken the impact generated when the clamping plate 7 is closed. When the friction roller 305 contacts the blade, a certain impact force is generated. The buffer rod 202 and the buffer spring 203 can absorb and relieve this part of the impact force, so as to protect the components such as the friction roller 305 and the rotating shaft 304 from being damaged.

[0041] Specifically, the storage assembly 8 includes a storage groove 801, a sliding groove 802, a cover plate 803 and a cleaning belt 804. The storage groove 801 is arranged at one end of the top of the holding frame body 1. The sliding groove 802 is arranged at one end of the holding frame body 1. The cover plate 803 is slidingly arranged inside the sliding groove 802. The cleaning belt 804 is arranged inside the storage groove 801. The top of the cover plate 803 is provided with anti-skid lines. The sliding groove 802 is arranged at the top of the storage groove 801 and communicates with the storage groove 801.

[0042] The storage assembly 8 is used for storing accessories such as the cleaning belt 804, so as to improve the use convenience, reduce the loss and damage of the blade, and realize the opening and closing of the cover plate 803 by sliding, so as to take and store the blade. The cleaning belt 804 is used for cleaning the friction roller 305.

[0043] In use, the pressing ear 9 is directly pressed, which drives the clamping plate 7 to move upward, causing the clamping plate 7 to separate from the holding frame body 1, and at the same time, the downward pressing of the pressing ear 9 will generate pressure on the reset spring 11, causing it to be elastically compressed. Then, one end of the blade to be measured is accurately placed in the scanning measurement area of the holding frame body 1, and it is ensured that the blade is located directly below the friction roller 305. After the blade is placed, the pressure on the pressing ear 9 is released, and at the same time, the elastic force stored in the compressed reset spring 11 begins to release, causing the pressing ear 9 to close with the clamping plate 7 and the clamping plate 7 to tightly clamp the blade. In the process of closing the clamping plate 7, the buffer rod 202 first contacts the contact surface of the holding frame body 1. As the clamping force further increases, the buffer rod 202 will slide inward along the direction of the installation slot hole 201, and in the process, the buffer spring 203 will be compressed, thereby relieving the impact force generated during clamping and protecting the equipment from impact damage. Then, the measurement button on the control panel 4 is pressed to activate the internal transmission system of the device. After receiving the start signal, the friction wheel drive motor 301 starts to rotate and drives the connected rotating shaft 304 to rotate synchronously. The rotation of the rotating shaft 304 further drives the friction roller 305 to roll on the surface of the blade. The blade moves synchronously along the rolling direction of the friction roller 305 under the push of the friction roller 305. At the same time, the encoder accurately records the displacement of the friction roller 305 during the entire rolling process in real time. When it is necessary to clean the friction roller 305, the cover plate 803 is pushed to open the storage slot 801, and the cleaning belt 804 is taken out and placed under the friction roller 305. At this time, the cleaning belt 804 moves synchronously along the rolling direction of the friction roller 305 under the push of the friction roller 305, and cleans the impurities on the surface of the friction roller 305 during the movement.

[0044] By the built-in blade translation assembly 3, the length of the blade is measured, and the conversion formula can be integrated into the system to bring the length of the blade into the blade area automatic measurement. This design not only significantly improves the measurement speed, but also greatly improves the measurement accuracy, reduces the errors that may occur in traditional manual measurement methods, and adopts the layout of double friction rollers 305, which enables the detector to easily cope with and accurately measure blades of various widths, significantly enhancing the adaptability of the equipment and expanding the detection range of the detector, so that it can play an important role in blade measurement of different plant species and growth stages. Through the setting of the buffer mechanism 2, the impact force can be relieved when the clamping plate 7 is closed and the friction roller 305 contacts the blade, effectively protecting the key components such as the friction roller 305 and the rotating shaft 304 from damage, prolonging the service life of the equipment. The design of the storage assembly 8 considers the convenience of use, and through the combination of the storage slot 801, the sliding slot 802, the cover plate 803 and the cleaning belt 804, it provides convenience for storing and retrieving accessories, which not only reduces the risk of loss and damage, but also makes the operation of cleaning the friction roller 305 and other components more simple and efficient.

[0045] The above-mentioned embodiments are only preferred technical solutions of the present application, and should not be regarded as limitations of the present application. The protection scope of the present application should be the technical solutions recited in the claims, including equivalent replacement solutions of the technical features recited in the claims. That is, equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A hand-held vane length detection device, characterized by: Include holding The frame (1) is provided with a clamping plate (7), one end of the clamping plate (7) is hinged to the holding frame (1), the other end of the clamping plate (7) can be opened, a gap (15) is provided between the clamping plate (7) and the holding frame (1), the gap (15) is used for placing blades, a rotatable friction roller (305) is provided on the side of the clamping plate (7) close to the holding frame (1), and one end of the friction roller (305) is provided with a friction wheel driving motor (301) with an encoder.

2. The handheld vane length detection device of claim 1, wherein: A concave cavity is arranged in the clamping plate (7), a bearing seat (302) is arranged in the concave cavity of the clamping plate (7), a rotating shaft (304) is further arranged, one end of the rotating shaft (304) is connected with the friction roller (305), a torsion sensor (303) is further arranged, the other end of the rotating shaft (304) is connected with the friction wheel driving motor (301) through the torsion sensor (303), and the friction roller (305) protrudes from the concave cavity of the clamping plate (7).

3. The handheld vane length detection device of claim 1, wherein: The clamping plate (7) is provided with a mounting slot hole (201), and the side of the clamping plate (7) close to the holding frame (1) is further provided with a telescopic buffer rod (202), the buffer rod (202) is slidably sleeved with the mounting slot hole (201), a slidable sliding block (206) is arranged in the mounting slot hole (201), a screw rod portion (205) is arranged on the side of the buffer rod (202) away from the holding frame (1), the screw rod portion (205) is threadedly connected with the sliding block (206), a threaded adjusting block (204) is further arranged at the end of the mounting slot hole (201) away from the holding frame (1), and a buffer spring (203) is arranged between the adjusting block (204) and the sliding block (206).

4. The handheld vane length detection device of claim 1, wherein: The holding frame (1) is provided with a fixed block (5), the middle part of the fixed block (5) is provided with a shaft rod (6), one end of the clamping plate (7) is provided with a hinged sleeve portion (701), the hinged sleeve portion (701) is rotatably sleeved with the shaft rod (6), the end of the clamping plate (7) away from the friction roller (305) is provided with a pressing lug (9), the pressing lug (9) is provided with a limiting rod (10) and a return spring (11), and one side of the fixed block (5) of the holding frame (1) is further provided with a fixed ring (12). The return spring (11) is connected with the fixed ring (12).

5. The handheld vane length detection device of claim 1, wherein: The holding end of the holding frame (1) is further provided with a control panel (4) and a display screen (13).

6. The handheld vane length detection device of claim 1, wherein: The holding frame (1) is provided with a storage assembly (8), the storage assembly (8) comprises a storage groove (801), and the two sides of the storage groove (801) close to the opening are provided with sliding grooves (802), and the sliding grooves (802) are provided with slidable cover plates (803).

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