Data acquisition device based on RFID electronic tag technology

Abstract

The invention provides a data acquisition device based on an RFID electronic tag technology, which comprises a shell, an operation screen, a radio frequency front end plate and a scanning head, and is characterized in that the use state of the device can be adjusted by arranging an adjusting device, and the use modes of the device can be switched through a switching mechanism, so that the use modes of the device can be rapidly switched, and the use efficiency of the device is improved. The handheld type and the binding type are mutually switched, so that the device can be conveniently used in different use scenes, the working efficiency and effect are improved, the position of the extending handle is fixed through the limiting mechanism, it is ensured that the handle can stably support the shell during use, the shell can be normally used, and the practicability is high. And the position of the shell can be quickly adjusted through the extension mechanism, so that the device can perform data acquisition on articles at high positions or low positions during use, and the practical effect of the device is improved.

Description

Technical Field

[0001] The invention relates to the field related to RFID data acquisition equipment, in particular to a data acquisition device based on RFID electronic tag technology. Background Art

[0002] The data collection device based on RFID electronic tag technology is a contactless automatic identification device that automatically identifies the target object and obtains relevant data through radio frequency signals. The data collector is also called an inventory machine or a handheld computer. It has the characteristics of integrity, mobility, small size, light weight, high performance and is suitable for handheld use. There is also a data collector on the market such as HK9920, HK9900, C5000W. This data collector mainly collects barcode or RFID information. Since it has its own operating system, the data collector processes data by itself. It also has mobile data transmission functions such as WIFI, GPRS, Bluetooth, etc., which can be easily moved or operated outdoors.

[0003] For example, publication number CN112856192B discloses "A data collection device based on RFID technology", which includes a fixing ring, a supporting seat and a fixing seat; the fixing ring: an embedded groove is provided on the right end, a spring groove is provided on the upper side of the embedded groove, a spring is fixed on the lower side of the spring groove, a pressure ball is movably placed in the upper end of the spring groove, the upper end of the spring abuts against the lower side of the pressure ball, and a positioning ring is rotatably connected in the embedded groove, so that the data collector can be put on the arm and kept fixed, so that the user can take other items with both hands to avoid the user's hands being tired, and the position of the data collector and the direction of the data collection end can be adjusted according to the user's needs to avoid the data collector blocking the user's arm and collect information of items in different directions, and the distance between the data collector and the item can be adjusted to facilitate the collection of data of items located lower or higher.

[0004] Although the above-mentioned RFID data collection device has certain advantages in data collection, it still has certain disadvantages: the above-mentioned RFID data collection device directly changes from a handheld type to an arm-bound form for use, but different scenarios will be encountered during use, and the single arm-bound form of use cannot be suitable for scene usage requirements. If precise identification is required, the handheld type can identify more accurately. Therefore, a single use method cannot be adapted to different scenarios and cannot achieve the best work efficiency and use effect. Summary of the invention

[0005] In order to solve the above technical problems, the purpose of the present invention is to provide a data acquisition device based on RFID electronic tag technology.

[0006] Based on this, the present invention proposes a data acquisition device based on RFID electronic tag technology, including a shell, an operation screen, a radio frequency front-end board, a scanning head and an adjustment device, wherein the operation screen is arranged at the top of the shell, the radio frequency front-end board is arranged at the bottom of the shell, the scanning head is arranged at the left end of the shell, and the adjustment device is arranged at the bottom of the shell. The adjustment device includes a fixed block, a placement slot, a handle, a restraining belt, a switching mechanism, a limiting mechanism and an extending mechanism. The fixed block is fixed to the inside of the shell, the placement slot is opened at the bottom of the fixed block, the handle is arranged inside the placement slot, the restraining belt is arranged inside the fixed block, the switching mechanism is arranged inside the fixed block, the limiting mechanism is arranged inside the handle, the limiting mechanism is used to fix the position of the handle, the extending mechanism is arranged inside the fixed block, and the extending mechanism is used to extend the shell. When the handle is stored, the restraining belt is extended through the switching mechanism, and when the handle is extended, the restraining belt is driven to be stored through the switching mechanism.

[0007] Optionally, the switching mechanism includes round rod one, an adjusting groove, a pulley group, round rod two, gear one, gear two, round rod three and a storage groove, round rod one passes through the interior of the handle, and two ends of round rod one are rotatably connected to the interior of the adjusting groove via a bearing seat, the adjusting groove is opened in the interior of the fixed block, one end of the pulley group is arranged on the outside of round rod one, and the other end of the pulley group is arranged on the outside of round rod two, two ends of round rod two are rotatably connected to the interior of the adjusting groove via a bearing seat, gear one is fixed to the outside of round rod two, gear two is fixed to the outside of round rod three, round rod three passes through the interior of the storage groove, and two ends of round rod three are rotatably connected to the interior of the adjusting groove via a bearing seat, and the top end of the restraint belt is fixedly connected to the outside of round rod three.

[0008] Optionally, the limiting mechanism includes a first light rod, a sliding block, a card block, a support block, a first spring, an adjustment rod, a fixed plate, a connecting plate, a connecting rod, a movable groove, a support plate, a second light rod, a button, an adjustment block, a second spring and a card slot, the first light rod is arranged inside the handle, the sliding block is arranged on the outside of the first light rod, the card block is fixedly connected to the top end of the sliding block and passes through the inside of the handle, the support block is fixed inside the handle, the first spring is arranged inside the support block, the adjustment rod passes through the fixed plate and is arranged inside the handle, and the bottom end of the adjustment rod is arranged on the support The inside of the block, the fixed plate is fixed to the inside of the handle, the connecting plate is fixed to the top of the adjusting rod, one end of the connecting rod is rotatably connected to the sliding block through a rotating shaft, and the other end of the connecting rod is rotatably connected to the connecting plate through a rotating shaft, the movable groove is opened on the outside of the adjusting rod, the supporting plate is fixed to the inside of the handle, the second optical rod passes through the inside of the button, and the second optical rod is fixedly connected to the inner side of the supporting plate, the button passes through the inside of the handle, the adjusting block is fixed to the left end of the button, the second spring is mounted on the outside of the second optical rod, and the card slot is opened on the inner wall of the placement slot.

[0009] Optionally, the extension mechanism includes a rotating groove, a rotating rod, a screw sleeve, a movable block, a worm wheel, a worm and a rotating handle, the rotating groove is arranged inside the fixed block, both ends of the rotating rod are rotatably connected to the inside of the rotating groove through a bearing seat, the screw sleeve is sleeved on the outside of the rotating rod, and the screw sleeve is fixedly connected to the rotating rod, the movable block is arranged on the outside of the screw sleeve, and the movable block is fixedly connected to the housing, the worm wheel is fixed to the outside of the rotating rod, the worm and the worm wheel are meshed with each other, and the rear end of the worm is rotatably connected to the inside of the rotating groove through the bearing seat, the front end of the worm passes through the interior of the fixed block, and the rotating handle is fixed to the front end of the worm.

[0010] Optionally, gear one and gear two are arranged in the same horizontal direction and mesh with each other, and the number of teeth of gear one is greater than the number of teeth of gear two. Through this arrangement, when round rod two rotates, the rotation speed of round rod three is reduced through the cooperation of gear one and gear two.

[0011] Optionally, a notch is provided at the bottom end of the storage slot, and the size of the notch is consistent with the width of the restraint belt. This arrangement facilitates the restraint belt to move out of the storage slot.

[0012] Optionally, the outer side of the first polished rod is smoothly arranged and is slidably connected to the sliding block, and this arrangement enables the sliding block to move more smoothly along the first polished rod.

[0013] Optionally, a protrusion is provided at the left end of the button, and this arrangement prevents the button from moving out of the handle.

[0014] Optionally, the left end face of the adjusting block is inclined and tilts downward from left to right. Through this arrangement, when the adjusting block moves, the adjusting rod is pushed to move through the movable groove.

[0015] Optionally, the interior of the movable block is threaded and threadedly connected to the screw sleeve. Through this arrangement, the movable block is driven to move when the screw sleeve rotates.

[0016] The present invention has the following advantages: The present invention provides a data acquisition device based on RFID electronic tag technology through improvement, which has the following improvements compared with the same type of equipment:

[0017] The present invention provides a data acquisition device based on RFID electronic tag technology. By setting an adjustment device, the use state of the device can be adjusted. By using a switching mechanism, the use mode of the device can be switched. When the handle is pushed to move into the placement slot, the round rod one is driven to rotate. The rotation of the round rod one drives the round rod two to rotate through a pulley group. The rotation of the round rod two causes the round rod three to rotate through the cooperation of the gear one and the gear two. When the round rod three rotates, the restraint belt is rotated to extend the restraint belt out of the storage slot for use. Conversely, when the handle is moved out of the placement slot, the restraint belt can be moved into the storage slot. Through this setting, the use mode of the device can be quickly switched, and the handheld mode and the binding mode can be mutually converted, so that the device can be conveniently used in different use scenarios, thereby improving work efficiency and effect.

[0018] The position of the extended handle is fixed by a limiting mechanism to ensure that the handle can stably support the shell when in use, so that it can be used normally. The position of the shell can be quickly adjusted by an extension mechanism, so that the device can collect data on high or low objects when in use, thereby improving the practical effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a front view of the structure of the adjusting device of the present invention;

[0021] Figure 3 A top view of the switching mechanism structure of the present invention;

[0022] Figure 4 It is a front view of the limiting mechanism structure of the present invention;

[0023] Figure 5 It is a side view of the limiting mechanism structure of the present invention;

[0024] Figure 6 This is a bottom view of the fixed block structure of the present invention;

[0025] Figure 7 It is a front view of the extension mechanism structure of the present invention;

[0026] Figure 8 It is a top view of the extension mechanism structure of the present invention.

[0027] Description of the accompanying drawings: housing 1, operation screen 2, RF front end board 3, scanning head 4, adjustment device 5, fixing block 51, placement slot 52, handle 53, restraint belt 54, switching mechanism 55, limiting mechanism 56, extension mechanism 57, round rod 1 551, adjustment slot 552, pulley group 553, round rod 2 554, gear 1 555, gear 2 556, round rod 3 557, storage slot 558, light rod 1 561, sliding block 56 2. Block 563, support block 564, spring 1 565, adjusting rod 566, fixing plate 567, connecting plate 568, connecting rod 569, movable slot 5610, support plate 5611, bare rod 2 5612, button 5613, adjusting block 5614, spring 2 5615, slot 5616, rotating slot 571, rotating rod 572, screw sleeve 573, movable block 574, worm wheel 575, worm 576, rotating handle 577. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0031] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] Please refer to Figure 1-3The present embodiment provides a data acquisition device based on RFID electronic tag technology, including a housing 1, an operation screen 2, a radio frequency front-end board 3, a scanning head 4 and an adjustment device 5. The operation screen 2 is arranged at the top of the housing 1, the radio frequency front-end board 3 is arranged at the bottom of the housing 1, the scanning head 4 is arranged at the left end of the housing 1, and the adjustment device 5 is arranged at the bottom of the housing 1. The adjustment device 5 includes a fixing block 51, a placement slot 52, a handle 53, a restraining belt 54, a switching mechanism 55, a limiting mechanism 56 and an extending mechanism 57. The fixing block 51 is fixed inside the housing 1, the placement slot 52 is opened at the bottom of the fixing block 51, and the handle 53 is arranged at the placement slot 52. The inside of the groove 52, the restraint belt 54 is arranged inside the fixed block 51, the switching mechanism 55 is arranged inside the fixed block 51, the limiting mechanism 56 is arranged inside the handle 53, the limiting mechanism 56 is used to fix the position of the handle 53, the extension mechanism 57 is arranged inside the fixed block 51, the extension mechanism 57 is used to extend the shell 1, when the handle 53 is stored, the restraint belt 54 is extended through the switching mechanism 55, and when the handle 53 is extended, the restraint belt 54 is stored through the switching mechanism 55, and the switching mechanism 55 includes a round rod 1 551, an adjustment groove 552, a pulley group 553, a round rod 2 554, a gear 1 555, a gear 2 Wheel 2 556, round rod 3 557 and storage groove 558, round rod 1 551 passes through the interior of handle 53, and the two ends of round rod 1 551 are connected to the interior of adjustment groove 552 through bearing seat, and adjustment groove 552 is opened in the interior of fixed block 51, one end of pulley group 553 is arranged on the outside of round rod 1 551, and the other end of pulley group 553 is arranged on the outside of round rod 2 554, and the two ends of round rod 2 554 are connected to the interior of adjustment groove 552 through bearing seat, gear 1 555 is fixed on the outside of round rod 2 554, gear 2 556 is fixed on the outside of round rod 3 557, and round rod 3 557 passes through the storage groove The interior of round rod 558, and both ends of round rod three 557 are rotatably connected with the interior of adjusting groove 552 through bearing seat, the top of restraint belt 54 is fixedly connected with the outer side of round rod three 557, gear one 555 and gear two 556 are arranged in the same horizontal direction and mesh with each other, the number of teeth of gear one 555 is greater than the number of teeth of gear two 556, through this arrangement, when round rod two 554 rotates, the rotation speed of round rod three 557 is reduced through the cooperation of gear one 555 and gear two 556, a notch is provided at the bottom end of storage groove 558, and the size of the notch is consistent with the width of restraint belt 54, through this arrangement, it is convenient for restraint belt 54 to move out of the interior of storage groove 558.

[0034] When the round rod 557 drives the restraint belt 54 to reel up, when the round rod 557 stops rotating, the position of the restraint belt 54 is consistent with the bottom end notch of the storage groove 558, so the restraint belt 54 will move to the inside of the storage groove 558, which is convenient for the restraint belt 54 to be moved out and in.

[0035] There are four groups of restraints 54, two of which are arranged on one side, and the restraints 54 on the same side are matched and fixed by a Velcro group.

[0036] Please refer to Figure 4-6 , this embodiment provides a data acquisition device based on RFID electronic tag technology, the limiting mechanism 56 includes a light rod 1 561, a sliding block 562, a card block 563, a support block 564, a spring 1 565, an adjustment rod 566, a fixing plate 567, a connecting plate 568, a connecting rod 569, a movable groove 5610, a support plate 5611, a light rod 2 5612, a button 5613, an adjustment block 5614, a spring 2 5615 and a card slot 5616, the light rod 1 561 is arranged inside the handle 53, the sliding block 562 is arranged The first spring 565 is disposed inside the support block 564, and the adjusting rod 566 passes through the fixing plate 567 and is disposed inside the handle 53, and the bottom end of the adjusting rod 566 is disposed inside the support block 564, the fixing plate 567 is fixed inside the handle 53, the connecting plate 568 is fixed to the top end of the adjusting rod 566, and one end of the connecting rod 569 is connected to the sliding block 562 through a rotating shaft. The movable block 562 is rotatably connected, and the other end of the connecting rod 569 is rotatably connected to the connecting plate 568 through a rotating shaft. The movable groove 5610 is opened on the outer side of the adjusting rod 566. The support plate 5611 is fixed to the inside of the handle 53. The second light rod 5612 passes through the inside of the button 5613, and the second light rod 5612 is fixedly connected to the inner side of the support plate 5611. The button 5613 passes through the inside of the handle 53. The adjusting block 5614 is fixed to the left end of the button 5613. The second spring 5615 is sleeved on the outer side of the second light rod 5612. The card slot 5616 is provided on the inner wall of the placement groove 52, the outer side of the light rod 561 is smoothly arranged and is slidably connected with the sliding block 562, and this arrangement enables the sliding block 562 to move more smoothly along the light rod 561. A protrusion is provided at the left end of the button 5613, and this arrangement prevents the button 5613 from moving out of the handle 53. The left end face of the adjustment block 5614 is inclined and inclined downward from left to right, and this arrangement enables the adjustment block 5614 to push the adjustment rod 566 to move through the movable groove 5610 when it moves.

[0037] Please refer to Figure 7 and Figure 8The present embodiment provides a data acquisition device based on RFID electronic tag technology. The extension mechanism 57 includes a rotating groove 571, a rotating rod 572, a screw sleeve 573, a movable block 574, a worm wheel 575, a worm 576 and a rotating handle 577. The rotating groove 571 is arranged inside the fixed block 51. The two ends of the rotating rod 572 are rotatably connected to the inside of the rotating groove 571 through a bearing seat. The screw sleeve 573 is sleeved on the outer side of the rotating rod 572, and the screw sleeve 573 is fixedly connected to the rotating rod 572. The movable block 574 is arranged on the screw The outer side of the sleeve 573, and the movable block 574 is fixedly connected to the housing 1, the worm wheel 575 is fixed to the outer side of the rotating rod 572, the worm 576 and the worm wheel 575 are meshed with each other, and the rear end of the worm 576 is rotatably connected with the inside of the rotating groove 571 through the bearing seat, the front end of the worm 576 passes through the interior of the fixed block 51, the handle 577 is fixed to the front end of the worm 576, the interior of the movable block 574 is threadedly arranged, and is threadedly connected with the screw sleeve 573. Through this arrangement, when the screw sleeve 573 rotates, the movable block 574 is driven to move.

[0038] The present invention provides a data acquisition device based on RFID electronic tag technology through improvement, and its working principle is as follows:

[0039] First, before use, bring the collection device to the place where it is needed and wait for data collection;

[0040] Second, when in use, the housing 1 is moved by holding the handle 53, and the data is scanned and collected by the scanning head 4. When both hands need to pick up things, the use method of the device needs to be changed;

[0041] Third, press button 5613 to make button 5613 push adjustment block 5614 to move. When button 5613 moves, spring 2 5615 is squeezed. When adjustment block 5614 moves horizontally, it extends into movable groove 5610, thereby pushing adjustment rod 566 to move downward. When adjustment rod 566 moves, spring 1 565 is squeezed. When adjustment rod 566 moves, connecting plate 568 is driven to move. When connecting plate 568 moves, sliding block 562 is driven to move through connecting rod 569, so that sliding block 562 moves along light rod 1 561. When sliding block 562 moves, it drives block 563 to move, so that block 563 moves back to the inside of handle 53.

[0042] Fourth, the handle 53 is then rotated. When the handle 53 rotates, the round rod 1 551 is driven to rotate. When the round rod 1 551 rotates, the round rod 2 554 is driven to rotate through the pulley set 553. When the round rod 2 554 rotates, the gear 1 555 is driven to rotate. When the gear 1 555 rotates, the gear 2 556 is driven to rotate. When the gear 2 556 rotates, the round rod 3 557 is driven to rotate. When the round rod 3 557 rotates, the restraining belt 54 is driven to rotate, and the restraining belt 54 is moved out of the storage slot 558.

[0043] Fifth, use the strap 54 to fix the fixing block 51 on the arm, and then continue to use the device to collect data;

[0044] Sixth, when data collection is required at a high place, the handle 577 is rotated to drive the worm 576 to rotate, and the worm 576 drives the worm wheel 575 to rotate when the worm 576 rotates, and the worm wheel 575 drives the rotating rod 572 to rotate when the rotating rod 572 rotates, and the screw sleeve 573 drives the rotating rod 572 to rotate when the rotating rod 572 rotates, and the screw sleeve 573 drives the movable block 574 to move when the screw sleeve 573 rotates, and the movable block 574 drives the housing 1 to move when the movable block 574 moves, and the housing 1 is extended to facilitate data collection of objects at a high place;

[0045] Seventh, after use, turn the handle 577 to return the shell 1 to its original position. When the restraint belt 54 is not needed for fixing, take the handle 53 out of the placement slot 52. When the handle 53 is taken out, the restraint belt 54 can be returned to the storage slot 558 through the switching mechanism 55, and the handle 53 can be held for data collection.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A data acquisition device based on RFID electronic tag technology, characterized in that: The invention comprises a housing (1), an operating screen (2), a radio frequency front end board (3), a scanning head (4) and an adjusting device (5), wherein the operating screen (2) is arranged at the top of the housing (1), the radio frequency front end board (3) is arranged at the bottom of the housing (1), the scanning head (4) is arranged at the left end of the housing (1), and the adjusting device (5) is arranged at the bottom of the housing (1). The adjusting device (5) comprises a fixing block (51), a placement slot (52), a handle (53), a restraining belt (54), a switching mechanism (55), a limiting mechanism (56) and an extending mechanism (57), wherein the fixing block (51) The housing (1) is fixed inside the housing (1), the placement groove (52) is opened at the bottom end of the fixing block (51), the handle (53) is arranged inside the placement groove (52), the restraining belt (54) is arranged inside the fixing block (51), the switching mechanism (55) is arranged inside the fixing block (51), the limiting mechanism (56) is arranged inside the handle (53), the limiting mechanism (56) is used to fix the position of the handle (53), and the extending mechanism (57) is arranged inside the fixing block (51), and the extending mechanism (57) is used to extend the housing (1); When the handle (53) is retracted, the switching mechanism (55) drives the restraining belt (54) to extend; when the handle (53) is extended, the switching mechanism (55) drives the restraining belt (54) to be retracted.

2. The data acquisition device based on RFID electronic tag technology according to claim 1 is characterized in that: The switching mechanism (55) comprises a round rod (551), an adjusting groove (552), a pulley group (553), a round rod (554), a gear (555), a gear (556), a round rod (557) and a storage groove (558); the round rod (551) passes through the interior of the handle (53); and both ends of the round rod (551) are rotatably connected to the interior of the adjusting groove (552) through a bearing seat; the adjusting groove (552) is provided in the interior of the fixed block (51); one end of the pulley group (553) is arranged on the outer side of the round rod (551); and the belt pulley group (553) is arranged on the outer side of the round rod (551); The other end of the wheel group (553) is arranged on the outer side of the second round rod (554), and the two ends of the second round rod (554) are rotatably connected to the inside of the adjustment groove (552) through a bearing seat. The gear one (555) is fixed to the outer side of the second round rod (554), and the gear two (556) is fixed to the outer side of the third round rod (557). The third round rod (557) passes through the interior of the storage groove (558), and the two ends of the third round rod (557) are rotatably connected to the inside of the adjustment groove (552) through a bearing seat. The top end of the restraint belt (54) is fixedly connected to the outer side of the third round rod (557).

3. The data acquisition device based on RFID electronic tag technology according to claim 1 is characterized in that: The limiting mechanism (56) comprises a first light rod (561), a sliding block (562), a clamping block (563), a supporting block (564), a first spring (565), an adjusting rod (566), a fixing plate (567), a connecting plate (568), a connecting rod (569), a movable groove (5610), a supporting plate (5611), a second light rod (5612), a button (5613), an adjusting block (5614), a second spring (5615) and a clamping groove (5616). 61) is arranged inside the handle (53), the sliding block (562) is arranged outside the light rod (561), the clamping block (563) is fixedly connected to the top end of the sliding block (562) and passes through the inside of the handle (53), the supporting block (564) is fixed inside the handle (53), the spring (565) is arranged inside the supporting block (564), the adjusting rod (566) passes through the fixing plate (567) and is arranged inside the handle (53), and the adjusting rod ( The bottom end of the adjusting rod (566) is arranged inside the supporting block (564), the fixing plate (567) is fixed inside the handle (53), the connecting plate (568) is fixed to the top end of the adjusting rod (566), one end of the connecting rod (569) is rotatably connected to the sliding block (562) through a rotating shaft, and the other end of the connecting rod (569) is rotatably connected to the connecting plate (568) through a rotating shaft, the movable groove (5610) is opened on the outside of the adjusting rod (566), and the supporting plate (5611 ) is fixed to the inside of the handle (53), the second light rod (5612) passes through the inside of the button (5613), and the second light rod (5612) is fixedly connected to the inner side of the support plate (5611), the button (5613) passes through the inside of the handle (53), the adjustment block (5614) is fixed to the left end of the button (5613), the second spring (5615) is mounted on the outer side of the second light rod (5612), and the card slot (5616) is opened on the inner wall of the placement slot (52).

4. The data acquisition device based on RFID electronic tag technology according to claim 1 is characterized in that: The extending mechanism (57) comprises a rotating groove (571), a rotating rod (572), a screw sleeve (573), a movable block (574), a worm wheel (575), a worm (576) and a rotating handle (577); the rotating groove (571) is arranged inside the fixed block (51); two ends of the rotating rod (572) are rotatably connected to the inside of the rotating groove (571) through a bearing seat; the screw sleeve (573) is sleeved on the outside of the rotating rod (572); and the screw sleeve (573) and the rotating rod (572) are connected to each other. The movable block (574) is fixedly connected to the housing (1), the worm wheel (575) is fixedly connected to the outer side of the rotating rod (572), the worm (576) and the worm wheel (575) are meshed with each other, and the rear end of the worm (576) is rotatably connected to the inside of the rotating groove (571) through a bearing seat, the front end of the worm (576) passes through the interior of the fixed block (51), and the rotating handle (577) is fixed to the front end of the worm (576).

5. The data acquisition device based on RFID electronic tag technology according to claim 2 is characterized in that: The gear one (555) and the gear two (556) are arranged in the same horizontal direction and mesh with each other. The number of teeth of the gear one (555) is greater than the number of teeth of the gear two (556).

6. The data acquisition device based on RFID electronic tag technology according to claim 1 is characterized in that: A notch is provided at the bottom end of the storage groove (558), and the size of the notch is consistent with the width of the restraining belt (54).

7. The data acquisition device based on RFID electronic tag technology according to claim 3 is characterized in that: The outer side of the first polished rod (561) is smooth and is slidably connected to the sliding block (562).

8. The data acquisition device based on RFID electronic tag technology according to claim 3 is characterized in that: The left end of the button (5613) is provided with a protruding block.

9. The data acquisition device based on RFID electronic tag technology according to claim 3 is characterized in that: The left end surface of the adjustment block (5614) is arranged to be inclined and tilts downward from left to right.

10. The data acquisition device based on RFID electronic tag technology according to claim 4, characterized in that: The interior of the movable block (574) is threaded and is threadedly connected to the screw sleeve (573).

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