Two-dimensional code scanning gun convenient to hold

Abstract

The utility model relates to a two-dimensional code scanning gun, in particular to a two-dimensional code scanning gun convenient to hold. The utility model discloses a two-dimensional code scanning gun convenient to hold. The two-dimensional code scanning gun comprises an adjustable fixing assembly and a scanning gun body arranged in the adjustable fixing assembly, the scanning gun body comprises a scanning gun head, a grabbing handle is correspondingly arranged below the scanning gun head, a multi-stage telescopic assembly is arranged in the grabbing handle in a sliding mode, and a microcontroller is embedded in the position, corresponding to the multi-stage telescopic assembly, of the bottom of the grabbing handle. The utility model aims to provide the two-dimensional code scanning gun convenient to hold, which is convenient to temporarily store, convenient to adjust and more practical.

Description

Technical Field

[0001] The utility model relates to a two-dimensional code scanning gun, in particular to a two-dimensional code scanning gun which is convenient to hold. Background Art

[0002] As a high-tech product that closely combines optics, mechanics, electronics, and software applications, scanners are the third generation of major computer input devices after keyboards and mice. Since their birth in the 1980s, scanners have been rapidly developed and widely used. From the most direct pictures, photos, films to various drawings, graphics, and manuscripts, scanners can be used to input into computers, thereby realizing the processing, management, use, storage, or output of these image information.

[0003] A QR code scanner is also a type of scanner, which can be used to scan QR codes. Most existing QR code scanners are of an integrated structure. Current QR code scanners cannot adjust the height of use, resulting in a limited range of use of the scanner. Most handheld QR code scanners require users to hold them for a long time, and cannot be temporarily stored during intermittent use to temporarily free the user's hands. Utility Model Content

[0004] In view of this, the utility model provides a convenient-to-hold two-dimensional code scanning gun, which aims to provide a convenient-to-hold two-dimensional code scanning gun that is convenient for temporary storage, convenient for adjustment, and more practical.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A two-dimensional code scanning gun that is easy to hold, comprising an adjustable fixing component and a scanning gun body arranged in the adjustable fixing component; the scanning gun body comprises a scanning gun head, a gripping handle is arranged correspondingly below the scanning gun head, a multi-stage telescopic component is slidably arranged in the gripping handle, and a microcontroller is embedded in the bottom of the gripping handle corresponding to the multi-stage telescopic component; the adjustable fixing component comprises a front fixing plate, a retractable slot body and a plurality of mounting protrusions located on the left and right sides of the retractable slot body are arranged on the front side of the front fixing plate, a plurality of mounting grooves are correspondingly integrally formed between the plurality of mounting protrusions and the front fixing plate, a fixing block is integrally formed at the bottom of the retractable slot body, a self-locking tape measure is arranged in the placement slot at the bottom of the fixing block, and the adjustment soft belt in the self-locking tape measure is arranged along the The bottom of the self-locking tape measure extends outward to the bottom of the rear fixing plate, and the self-locking adjustment button of the self-locking tape measure is arranged in the adjustment slot on the left side of the fixing block, and the rear side of the front fixing plate is correspondingly arranged with the rear fixing plate, and a plurality of magnetic fixing components are arranged on the rear fixing plate corresponding to the plurality of mounting slots; the magnetic fixing component includes a fixing pin with one end fixedly arranged in the rear fixing plate, the other end extending to the front side of the rear fixing plate and detachably connected to the mounting slot, a guide ring is slidably arranged in the mounting slot corresponding to the fixing pin, a first spring is arranged between the front end face of the guide ring and the rear inner wall of the mounting slot, a plurality of limiting magnetic beads are arranged in a ring array on the rear side of the guide ring corresponding to its rear end face, and a plurality of limiting grooves are provided on the periphery of the fixing pin corresponding to the plurality of limiting magnetic beads.

[0007] Preferably, the multi-stage telescopic assembly includes a first guide groove provided on the inner wall of the gripping handle, a first adjusting cylinder is slidably arranged in the first guide groove corresponding to the first slider, a second guide groove is provided on the inner wall of the first adjusting cylinder, a second adjusting cylinder is slidably arranged in the second guide groove corresponding to the second slider, the bottom inner wall of the gripping handle is fixedly connected to the fixed end of the electric push rod, the movable end of the electric push rod is fixedly arranged on the bottom end surface of the scanning gun head, and the starting switch of the electric push rod is electrically connected to the microcontroller.

[0008] Preferably, an elastic limiting component is further provided between the scanning gun body and the inner wall of the storage slot body, and the elastic limiting component includes a rubber soft plate correspondingly arranged on the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body, and a plurality of second springs are respectively correspondingly arranged between the rubber soft plate and the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body.

[0009] Preferably, a magnetic attraction groove body is further provided below the retractable groove body, a magnetic block is magnetically provided in the magnetic attraction groove body, and a semicircular pull ring is correspondingly provided on the front side of the magnetic block.

[0010] Preferably, a keypad is provided on the left side of the scanning gun head, and the keypad is electrically connected to the microcontroller.

[0011] Preferably, a plurality of first magnetic blocks are embedded in the front fixing plate corresponding to the storage slot, and a plurality of second magnetic blocks are embedded in the rear fixing plate corresponding to the first magnetic blocks.

[0012] Preferably, a first limiting ring is integrally formed on the top of the gripping handle corresponding to the first sliding block, and a second limiting ring is integrally formed on the top of the first adjusting cylinder corresponding to the second sliding block.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model includes an adjustable fixing component and a scanning gun body arranged in the adjustable fixing component. This setting provides a space for placing and fixing the scanning gun body through the adjustable fixing component, and at the same time, the storage slot and the scanning gun body can be fixed on clothes or other flexible fixing media such as a belt through a magnetic fixing component. The scanning gun body can be adjusted in height through a multi-stage telescopic component arranged therein. Generally speaking, compared with the previous two-dimensional code scanning guns, this two-dimensional code scanning gun can fix the scanning gun body and the storage slot on clothes or other flexible fixing media such as a belt through a simple principle, and can temporarily store the two-dimensional code scanning gun during intermittent use to temporarily free the user's hands, and can be adjusted in height through the multi-stage telescopic component to adapt to the use needs of different height occasions, which is more practical; the scanning gun body includes a scanning gun head, and a gripping handle is correspondingly arranged below the scanning gun head, and a multi-stage telescopic component is slidably arranged in the gripping handle. A microcontroller is embedded in the multi-stage telescopic component corresponding to the bottom of the gripping handle, and the microcontroller can adopt a small controller PNOZmult i 2 models of controllers, this controller can be applied to commonly used communication networks and can also connect, control and monitor multiple components at the same time. This setting can control the electrical components in the scanner body through the microcontroller to enable the scanner to operate normally. At the same time, through the height adjustment of the multi-stage telescopic component, the scanner can adapt to the use needs of different height occasions, which is more practical; the adjustable fixing component includes a front fixing plate, and the front side of the front fixing plate is provided with a storage slot and a plurality of mounting protrusions on the left and right sides of the storage slot. The storage slot is set low in front and high in the back and is located in the middle of the front side of the front fixing plate. The plurality of mounting protrusions There are a plurality of mounting grooves formed in one piece with the front fixing plate, a fixing block is formed in one piece at the bottom of the storage tank body, a self-locking tape measure is arranged in the placement groove at the bottom of the fixing block, the adjustment soft belt in the self-locking tape measure extends outward along the bottom of the self-locking tape measure to the bottom of the rear fixing plate and is fixed to the bottom of the rear fixing plate, the self-locking adjustment button of the self-locking tape measure is arranged in the adjustment groove on the left side of the fixing block and extends to the left outside the adjustment groove, a rear fixing plate is arranged on the rear side of the front fixing plate, and a plurality of magnetic fixing components are arranged on the rear fixing plate corresponding to the plurality of mounting grooves, the self-locking tape measure can adopt the 1.5-meter English small tape measure, this setting is in the process of fixing the rear fixing plate and the front fixing plate to the clothes or other flexible fixing medium, the length of the adjustment soft belt can be adjusted to adapt to the installation between the rear fixing plate and the front fixing plate by pulling the adjustment soft belt, that is: the rear fixing plate can be placed inside the clothes by directly lifting the clothes, so that the rear fixing plate can still be installed normally when the user's clothes have no zipper or button, which is conducive to quickly placing the rear fixing plate on the inside of the clothes or other flexible fixing medium and the front fixing plate on the outside of the clothes or other flexible fixing medium, and the whole process is more convenient and quick. Finally, the rear fixing plate and the front fixing plate are magnetically fixed by multiple magnetic suction components. The magnetic suction fixing installation can realize the purpose of temporarily storing the scanning gun body in the storage slot during intermittent work; the magnetic suction fixing component includes a fixing pin with one end fixedly arranged in the rear fixing plate and the other end extending to the front side of the rear fixing plate and detachably connected to the installation slot, a guide ring is slidably arranged in the installation slot corresponding to the fixing pin, the guide ring is made of ferromagnetic material, the circumferential outer wall of the guide ring is slidably connected to the inner wall of the installation slot and the inner diameter of the guide ring is larger than the maximum outer diameter of the fixing pin, a first spring is arranged between the front end face of the guide ring and the rear inner wall of the installation slot, and a plurality of limiting magnetic beads are arranged in a ring array on the rear side of the guide ring corresponding to its rear end face, and the plurality of limiting magnetic beads are adjacently distributed and Due to the magnetic attraction between each other, a limiting magnetic bead ring is formed, and the limiting magnetic bead ring is magnetically connected to the rear end face of the guide ring. A plurality of limiting grooves are provided on the periphery of the fixing needle corresponding to the plurality of limiting magnetic beads. This arrangement enables the front fixing plate and the rear fixing plate to be fixedly connected by only needing to push the fixing needle into the corresponding installation groove, so that the fixing needle passes through the limiting magnetic bead ring, the guide ring and the first spring formed by the plurality of limiting magnetic beads in sequence. In this process, due to the limiting effect of the plurality of limiting grooves, the plurality of limiting magnetic beads enter the corresponding limiting grooves and are limited. According to the above process, the plurality of fixing needles are pushed into the corresponding installation grooves in sequence to complete the fixation between the front fixing plate and the rear fixing plate. When needed When disassembling the front fixing plate and the rear fixing plate, you only need to pull the semicircular pull ring to remove the magnetic block from the magnetic absorption groove body, and place the magnetic block on the front side of one of the mounting protrusions. The strong magnetic attraction exerted by the magnetic block on the guide ring and multiple limit magnetic beads can make the guide ring and multiple limit magnetic beads move forward at the same time. At this time, multiple limit magnetic beads are separated from the corresponding limit grooves, and the fixing needle can be taken out of the mounting groove. The magnetic block applies strong magnetic attraction to the inside of multiple mounting protrusions in turn, and the disassembly between the front fixing plate and the rear fixing plate is completed in this way. The whole process is simple in principle, and can quickly realize the fixing and disassembly between the front fixing plate and the rear fixing plate, which is more practical. .

[0015] 2. The utility model multi-stage telescopic assembly includes a first guide groove provided on the inner wall of the gripping handle, a first adjusting cylinder is slidably arranged in the first guide groove corresponding to the first slider, a second guide groove is provided on the inner wall of the first adjusting cylinder, a second adjusting cylinder is slidably arranged in the second guide groove corresponding to the second slider, the second adjusting cylinder is integrally formed with the bottom end surface of the scanning gun head, the bottom inner wall of the gripping handle is fixedly connected to the fixed end of the electric push rod, the moving end of the electric push rod is fixedly arranged on the bottom end surface of the scanning gun head, the starting switch of the electric push rod is electrically connected to the microcontroller, and the electric The push rod can adopt the Juying 12 / 24V micro pen-type electric push rod produced by Zhejiang Juying Intelligent Technology Co., Ltd. This setting controls the rise (fall) of the electric push rod through a microcontroller. As the rise (fall) height increases, the second adjustment cylinder is gradually driven to slide upward (downward) in the second guide groove through the second slider, and the first adjustment cylinder is driven to slide upward (downward) in the first guide groove through the first slider, thereby driving the scanning gun head to rise (fall) synchronously to achieve the adjustment of the height of the scanning gun head. The whole process is simple in principle and easy to adjust, making this QR code scanner more practical.

[0016] 3. An elastic limiting component is also provided between the scanner body of the utility model and the inner wall of the storage slot body. The elastic limiting component includes a rubber soft plate correspondingly arranged on the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body. A plurality of second springs are respectively provided between the rubber soft plate and the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body. This setting can enable two-dimensional code scanner guns of different models and sizes to be limited and fixed in the storage slot body through the elastic adjustment effect of the plurality of second springs and the rubber soft plate.

[0017] 4. A magnetic suction groove body is also provided below the retractable groove body of the utility model, and a magnetic block is magnetically provided in the magnetic suction groove body. A semicircular pull ring is correspondingly provided on the front side of the magnetic block. This setting can remove the magnetic block from the magnetic suction groove body by pulling the semicircular pull ring, and place the magnetic block on the front side of one of the mounting protrusions. The strong magnetic attraction exerted by the magnetic block on the multiple limiting magnetic beads can make the guide ring and the multiple limiting magnetic beads move forward at the same time. At this time, the multiple limiting magnetic beads are separated from the corresponding limiting grooves, and the fixing pin can be taken out from the mounting groove, so that the front fixing plate and the rear fixing plate can be quickly disassembled.

[0018] 5. A keypad is provided on the left side of the scanner head of the utility model, and the keypad is electrically connected to the microcontroller. This arrangement enables the scanner to operate normally under the joint control of the keypad and the controller.

[0019] 6. In the utility model, a plurality of first magnetic blocks are embedded in the corresponding storage grooves on the front fixing plate, and a plurality of second magnetic blocks are embedded in the corresponding first magnetic blocks on the rear fixing plate. This arrangement can perform preliminary fixation through the magnetic attraction between the first magnetic blocks and the second magnetic blocks during the fixing process between the front fixing plate and the rear fixing plate, and can prevent the entire device from slipping off clothes or other flexible fixing media through the magnetic attraction between the first magnetic blocks and the second magnetic blocks during the disassembly process between the front fixing plate and the rear fixing plate.

[0020] 7. A first limiting ring is integrally formed with the top of the gripping handle corresponding to the first slider. When the bottom of the first adjusting cylinder slides to the top of the gripping handle, the first limiting ring can limit the first adjusting cylinder by limiting the first slider. A second limiting ring is integrally formed with the top of the first adjusting cylinder corresponding to the second slider. When the bottom of the second adjusting cylinder slides to the top of the first adjusting cylinder, the second limiting ring can limit the second adjusting cylinder by limiting the second slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a left-side structural schematic diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the left side cross-sectional structure of the scanning gun body of the utility model when it is folded;

[0023] Figure 3 It is a schematic diagram of the left side cross-sectional structure of the scanning gun body of the utility model when it is unfolded;

[0024] Figure 4 This is a front view structural diagram of the retractable tank body of the utility model;

[0025] Figure 5 It is a front view cross-sectional structural schematic diagram of the retractable tank body of the utility model;

[0026] Figure 6 This is a schematic diagram of the installation structure of the magnetic fixing component of the utility model;

[0027] Figure 7 This is a schematic diagram of the installation structure of the multi-stage telescopic assembly of the utility model;

[0028] Figure 8 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0029] Fig. 9 for Figure 5 A schematic diagram of the enlarged structure of part B;

[0030] Fig.10 for Figure 6 Schematic diagram of the enlarged structure of part C.

[0031] Figure numerals: 1: adjustable fixing assembly, 2: scanner body, 3: scanner head, 4: gripping handle, 5: multi-stage telescopic assembly, 6: microcontroller, 7: front fixing plate, 8: storage slot, 9: mounting protrusion, 10: mounting slot, 11: fixing block, 12: placement slot, 13: self-locking soft ruler, 14: adjustment soft belt, 15: rear fixing plate, 16: self-locking adjustment button, 17: adjustment slot, 18: magnetic fixing assembly, 19: fixing needle, 20: guide ring, 21: first spring , 22: limiting magnetic beads, 23: limiting grooves, 24: first guide grooves, 25: first sliders, 26: first adjustment cylinders, 27: second guide grooves, 28: second sliders, 29: second adjustment cylinders, 30: electric push rods, 31: elastic limiting components, 32: rubber soft boards, 33: second springs, 34: magnetic grooves, 35: magnetic blocks, 36: semicircular pull rings, 37: keyboards, 38: first magnetic blocks, 39: second magnetic blocks, 40: first limiting rings, 41: second limiting rings. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 operated 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.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" 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.

[0035] like Figure 1 , Figure 2, Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10As shown, the scanner body 2 includes an adjustable fixing component 1 and a scanner body 2 arranged in the adjustable fixing component 1. This arrangement provides a space for placing and fixing the scanner body 2 through the adjustable fixing component 1, and the storage slot 8 and the scanner body 2 can be fixed on clothes or other flexible fixing media such as a belt through a magnetic fixing component 18. The scanner body 2 can be adjusted in height through a multi-stage telescopic component 5 arranged therein. Generally speaking, compared with the previous two-dimensional code scanner guns, this two-dimensional code scanner gun can fix the scanner body 2 and the storage slot 8 on clothes or other flexible fixing media such as a belt through a simple principle, and can temporarily store the two-dimensional code scanner gun during intermittent use to temporarily free the user's hands, and can be adjusted in height through the multi-stage telescopic component 5 to adapt to the use needs of different height occasions, which is more practical; the scanner body 2 includes a scanner head 3, and a gripping handle 4 is correspondingly arranged below the scanner head 3. The multi-stage telescopic component 5 is slidably arranged in the gripping handle 4. A microcontroller 6 is embedded in the multi-stage telescopic component 5 corresponding to the bottom of the gripping handle 4, and the microcontroller 6 can adopt a small controller PNOZmul lt i2 model controller, this controller can be applied to commonly used communication networks and can also connect, control and monitor multiple components at the same time. This setting can control the electrical components in the scanner body 2 through the microcontroller 6 so that the scanner can operate normally. At the same time, through the height adjustment of the multi-stage telescopic component 5, the scanner can adapt to the use needs of different height occasions, which is more practical; the adjustable fixing component 1 includes a front fixing plate 7, and the front side of the front fixing plate 7 is provided with a storage groove 8 and a plurality of mounting protrusions 9 located on the left and right sides of the storage groove 8. The storage groove 8 is set with a low front and a high rear and is located in the middle of the front side of the front fixing plate 7. The plurality of mounting protrusions 9 and the front fixing plate 7 are correspondingly integrally formed. There are a plurality of mounting grooves 10, a fixing block 11 is integrally formed at the bottom of the storage tank body 8, a self-locking tape measure 13 is arranged in the placement groove 12 at the bottom of the fixing block 11, an adjustment soft belt 14 in the self-locking tape measure 13 extends outwardly along the bottom of the self-locking tape measure 13 to the bottom of the rear fixing plate 15 and is fixed to the bottom of the rear fixing plate 15, a self-locking adjustment button 16 of the self-locking tape measure 13 is arranged in the adjustment groove 17 on the left side of the fixing block 11 and extends to the left outside the adjustment groove 17, a rear fixing plate 15 is arranged on the rear side of the front fixing plate 7, and a plurality of magnetic fixing components 18 are arranged on the rear fixing plate 15 corresponding to the plurality of mounting grooves 10, and the self-locking tape measure 13 can adopt 1.5-meter small English tape measure, this arrangement is in the process of fixing the rear fixing plate 15 and the front fixing plate 7 to the clothes or other flexible fixing medium, the length of the adjustment soft belt 14 can be adjusted by pulling the adjustment soft belt 14 to adapt to the installation between the rear fixing plate 15 and the front fixing plate 7, that is: the rear fixing plate 15 can be placed on the inside of the clothes by directly lifting the clothes, so that the rear fixing plate 15 can still be installed normally when the user's clothes have no zipper or button, which is conducive to quickly placing the rear fixing plate 15 on the inside of the clothes or other flexible fixing medium and the front fixing plate 7 on the outside of the clothes or other flexible fixing medium, and the whole process is more convenient and quick, and finally the rear fixing plate 15 and the front fixing plate 7 are magnetically fixed and installed through multiple magnetic fixing components 18, so that intermittent The purpose of temporarily storing the scanning gun body 2 in the storage slot 8 during operation; the magnetic fixing component 18 includes a fixing pin 19 with one end fixedly arranged in the rear fixing plate 15, the other end extending to the front side of the rear fixing plate 15 and detachably connected to the mounting slot 10, a guide ring 20 is slidably arranged in the mounting slot 10 corresponding to the fixing pin 19, the guide ring 20 is made of ferromagnetic material, the circumferential outer wall of the guide ring 20 is slidably connected to the inner wall of the mounting slot 10 and the inner diameter of the guide ring 20 is larger than the maximum outer diameter of the fixing pin 19, a first spring 21 is arranged between the front end face of the guide ring 20 and the rear side inner wall of the mounting slot 10, and a plurality of limiting magnetic beads 22 are arranged in a ring array on the rear side of the guide ring 20 corresponding to its rear end face, and the plurality of limiting magnetic beads 22 are adjacently distributed and due to the distance between each other. The magnetic attraction forms a limiting magnetic bead ring, which is magnetically connected to the rear end surface of the guide ring 20. A plurality of limiting grooves 23 are provided on the periphery of the fixing needle 19 corresponding to the plurality of limiting magnetic beads 22. This arrangement enables the front fixing plate 7 to be fixedly connected to the rear fixing plate 15 by only pushing the fixing needle 19 into the corresponding installation groove 10, so that the fixing needle 19 passes through the limiting magnetic bead ring, the guide ring 20 and the first spring 21 formed by the plurality of limiting magnetic beads 22 in sequence. In this process, due to the limiting action of the plurality of limiting grooves 23, the plurality of limiting magnetic beads 22 enter the corresponding limiting grooves 23 and are limited. According to the above process, the plurality of fixing needles 19 are pushed into the corresponding installation grooves 10 in sequence to complete the fixation between the front fixing plate 7 and the rear fixing plate 15. When the front fixing plate needs to be fixed, When disassembling between the front fixing plate 7 and the rear fixing plate 15, it is only necessary to pull the semicircular pull ring 36 to remove the magnetic block 35 from the magnetic absorption groove body 34, and place the magnetic block 35 on the front side of one of the mounting protrusions 9. The strong magnetic attraction exerted by the magnetic block 35 on the guide ring 20 and the plurality of limiting magnetic beads 22 can make the guide ring 20 and the plurality of limiting magnetic beads 22 move forward at the same time. At this time, the plurality of limiting magnetic beads 22 are separated from the corresponding limiting grooves 23, and the fixing pin 19 can be taken out from the mounting groove 10. The magnetic block 35 exerts a strong magnetic attraction on the inside of the plurality of mounting protrusions 9 in turn, and the disassembly between the front fixing plate 7 and the rear fixing plate 15 is completed by this reciprocating process. The whole process is simple in principle, and can quickly realize the fixing and disassembly between the front fixing plate 7 and the rear fixing plate 15, which is more practical. .

[0036] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, the multi-stage telescopic assembly 5 includes a first guide groove 24 provided on the inner wall of the gripping handle 4, a first adjusting cylinder 26 is slidably provided in the first guide groove 24 corresponding to the first slider 25, a second guide groove 27 is provided on the inner wall of the first adjusting cylinder 26, a second adjusting cylinder 29 is slidably provided in the second guide groove 27 corresponding to the second slider 28, the second adjusting cylinder 29 is integrally formed with the bottom end surface of the scanning gun head 3, the bottom inner wall of the gripping handle 4 is fixedly connected to the fixed end of the electric push rod 30, the moving end of the electric push rod 30 is fixedly provided on the bottom end surface of the scanning gun head 3, and the starting switch of the electric push rod 30 is electrically connected to the microcontroller 6. The electric push rod 30 can adopt the Juying 12 / 24V micro pen-type electric push rod 30 produced by Zhejiang Juying Intelligent Technology Co., Ltd. This setting controls the rise (fall) of the electric push rod 30 through the microcontroller 6. As the rise (fall) height increases, the second adjustment cylinder 29 is gradually driven to slide upward (downward) in the second guide groove 27 through the second slider 28, and the first adjustment cylinder 26 is driven to slide upward (downward) in the first guide groove 24 through the first slider 25, thereby driving the scanning gun head 3 to rise (fall) synchronously, so as to adjust the height of the scanning gun head 3. The whole process is simple in principle and easy to adjust, making this two-dimensional code scanning gun more practical.

[0037] like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, an elastic limiting component 31 is also arranged between the scanner body 2 and the inner wall of the storage slot 8. The elastic limiting component 31 includes a rubber soft plate 32 correspondingly arranged on the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot 8. A plurality of second springs 33 are respectively arranged between the rubber soft plate 32 and the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot 8. This arrangement can enable two-dimensional code scanners of different models and sizes to be limited and fixed in the storage slot 8 through the elastic adjustment effect of the plurality of second springs 33 and the rubber soft plate 32.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Fig. 9As shown, a magnetic suction groove body 34 is also provided below the storage groove body 8, and a magnetic block 35 is magnetically provided in the magnetic suction groove body 34. A semicircular pull ring 36 is correspondingly provided on the front side of the magnetic block 35. This setting can remove the magnetic block 35 from the magnetic suction groove body 34 by pulling the semicircular pull ring 36, and place the magnetic block 35 on the front side of one of the mounting protrusions 9. The strong magnetic attraction exerted by the magnetic block 35 on the multiple limiting magnetic beads 22 can make the guide ring 20 and the multiple limiting magnetic beads 22 move forward at the same time. At this time, the multiple limiting magnetic beads 22 are separated from the corresponding limiting grooves 23, and the fixing pin 19 can be taken out from the mounting groove 10, so that the front fixing plate 7 and the rear fixing plate 15 can be quickly disassembled.

[0039] like Figure 1 As shown, a keypad 37 is arranged on the left side of the scanning gun head 3, and the keypad 37 is electrically connected to the microcontroller 6. This arrangement enables the scanning gun to operate normally under the joint control of the keypad 37 and the controller.

[0040] like Figure 2 and Figure 3 As shown, a plurality of first magnetic blocks 38 are embedded in the corresponding storage grooves 8 on the front fixing plate 7, and a plurality of second magnetic blocks 39 are embedded in the corresponding first magnetic blocks 38 on the rear fixing plate 15. This arrangement can perform preliminary fixation through the magnetic attraction between the first magnetic blocks 38 and the second magnetic blocks 39 during the fixing process between the front fixing plate 7 and the rear fixing plate 15, and can prevent the entire device from slipping off clothes or other flexible fixing media through the magnetic attraction between the first magnetic blocks 38 and the second magnetic blocks 39 during the disassembly process between the front fixing plate 7 and the rear fixing plate 15.

[0041] like Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, a first limiting ring 40 is integrally formed at the top of the gripping handle 4 corresponding to the first slider 25. When the bottom of the first adjusting cylinder 26 slides to the top of the gripping handle 4, the first limiting ring 40 can limit the first adjusting cylinder 26 by limiting the first slider 25; a second limiting ring 41 is integrally formed at the top of the first adjusting cylinder 26 corresponding to the second slider 28. When the bottom of the second adjusting cylinder 29 slides to the top of the first adjusting cylinder 26, the second limiting ring 41 can limit the second adjusting cylinder 29 by limiting the second slider 28.

[0042] The specific operating principle is:

[0043] When using this QR code scanner, you first need to fix the storage slot and the scanner body on clothes or other flexible fixing media such as belts through the magnetic fixing component, that is, by pulling the adjustment soft belt, the length of the adjustment soft belt can be adapted to the installation between the rear fixing plate and the front fixing plate, that is, the rear fixing plate can be placed inside the clothes by directly lifting the clothes, so that the rear fixing plate can still be installed normally when the user's clothes have no zipper or button, which is conducive to quickly placing the rear fixing plate on the inside of clothes or other flexible fixing media and placing the front fixing plate on clothes or other The outer side of the flexible fixing medium, and then when the front fixing plate and the rear fixing plate are fixedly connected, it is only necessary to push the fixing pin into the corresponding installation groove, so that the fixing pin passes through the limiting magnetic bead ring, the guide ring and the first spring formed by the plurality of limiting magnetic beads in sequence. In this process, due to the limiting effect of the plurality of limiting grooves, the plurality of limiting magnetic beads enter the corresponding limiting grooves and are limited. According to the above process, the plurality of fixing pins are pushed into the corresponding installation grooves in sequence to complete the fixation between the front fixing plate and the rear fixing plate; when it is necessary to adjust the height of the scanning gun head to adapt to the needs of different height occasions, click the keyboard to control the electrical components on this two-dimensional code scanning gun, and control the electric push rod to rise (fall) through the microcontroller. As the rising (falling) height increases, the second adjustment cylinder is gradually driven to slide upward (downward) in the second guide groove through the second slider, and the first adjustment cylinder is slid upward (downward) in the first guide groove through the first slider, thereby driving the scanning gun head to rise (fall) synchronously, so as to adjust the height of the scanning gun head; when it is necessary to disassemble between the front fixing plate and the rear fixing plate, it is only necessary to pull the semicircular pull ring to The magnetic block is taken out from the magnetic suction groove body, and the magnetic block is placed on the front side of one of the mounting protrusions. The guide ring and the multiple limiting magnetic beads can be moved forward at the same time through the strong magnetic attraction exerted by the magnetic block on the guide ring and the multiple limiting magnetic beads. At this time, the multiple limiting magnetic beads are separated from the corresponding limiting grooves, and the fixing needle can be taken out from the mounting groove. The magnetic block applies strong magnetic attraction to the inside of the multiple mounting protrusions in turn, and the disassembly between the front fixing plate and the rear fixing plate is completed in this reciprocating manner. When using this QR code scanner, it can be taken out of the storage groove body or directly placed in the storage groove body for use.

[0044] The electrical components appearing in this article can all be connected to the external main controller and 220V AC power through a transformer, and the main controller can be a conventional known device such as a computer that plays a control role. The conventional known device such as a computer that plays a control role can receive various data signals monitored by this device in real time. The electrical components provided by the utility model are only used for the technical solution according to the structural characteristics of the product. The product will be adjusted and modified after purchase to make it more matching and consistent with the technical solution of the utility model. It is a technical solution for the best application of the technical solution. The model of the product can be replaced and modified according to the required technical parameters. It is well known to technical personnel in this field. Therefore, technical personnel in this field can clearly obtain the corresponding use effect through the technical solution provided by the utility model.

[0045] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A convenient-to-hold QR code scanner, characterized in that: It includes an adjustable fixing component and a scanning gun body arranged in the adjustable fixing component; The scanning gun body includes a scanning gun head, a gripping handle is arranged correspondingly below the scanning gun head, a multi-stage telescopic component is slidably arranged inside the gripping handle, and a microcontroller is embedded in the bottom of the gripping handle corresponding to the multi-stage telescopic component; The adjustable fixing assembly comprises a front fixing plate, a retractable slot body and a plurality of mounting protrusions located on the left and right sides of the retractable slot body are arranged on the front side of the front fixing plate, a plurality of mounting slots are correspondingly formed integrally between the plurality of mounting protrusions and the front fixing plate, a fixing block is integrally formed at the bottom of the retractable slot body, a self-locking tape measure is arranged in the placement slot at the bottom of the fixing block, an adjustment tape in the self-locking tape measure extends outwardly along the bottom of the self-locking tape measure to the bottom of the rear fixing plate, a self-locking adjustment button of the self-locking tape measure is arranged in the adjustment slot on the left side of the fixing block, the rear side of the front fixing plate is correspondingly provided with the rear fixing plate, and a plurality of magnetic fixing assemblies are arranged on the rear fixing plate corresponding to the plurality of mounting slots; The magnetic fixing component includes a fixing pin with one end fixed in the rear fixing plate and the other end extending to the front side of the rear fixing plate and detachably connected to the mounting groove; a guide ring is slidably arranged in the mounting groove corresponding to the fixing pin; a first spring is arranged between the front end face of the guide ring and the rear inner wall of the mounting groove; a plurality of limiting magnetic beads are arranged in a circular array on the rear side of the guide ring corresponding to its rear end face; and a plurality of limiting grooves are provided on the periphery of the fixing pin corresponding to the plurality of limiting magnetic beads.

2. The convenient-to-hold two-dimensional code scanning gun according to claim 1, characterized in that: The multi-stage telescopic assembly includes a first guide groove provided on the inner wall of the gripping handle, a first adjusting cylinder is slidably arranged in the first guide groove corresponding to the first sliding block, a second guide groove is provided on the inner wall of the first adjusting cylinder, a second adjusting cylinder is slidably arranged in the second guide groove corresponding to the second sliding block, the bottom inner wall of the gripping handle is fixedly connected to the fixed end of the electric push rod, the movable end of the electric push rod is fixedly arranged on the bottom end surface of the scanning gun head, and the starting switch of the electric push rod is electrically connected to the microcontroller.

3. The easy-to-hold two-dimensional code scanning gun according to claim 1, characterized in that: An elastic limiting component is also arranged between the scanning gun body and the inner wall of the storage slot body, and the elastic limiting component includes a rubber soft plate correspondingly arranged on the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body, and a plurality of second springs are respectively arranged between the rubber soft plate and the front inner wall, left inner wall, rear inner wall, right inner wall and bottom inner wall of the storage slot body.

4. The convenient-to-hold two-dimensional code scanning gun according to claim 1, characterized in that: A magnetic attraction groove body is also arranged below the retractable groove body, a magnetic block is magnetically arranged in the magnetic attraction groove body, and a semicircular pull ring is correspondingly arranged on the front side of the magnetic block.

5. The convenient-to-hold two-dimensional code scanning gun according to claim 1, characterized in that: A keypad is arranged on the left side of the scanning gun head, and the keypad is electrically connected to the microcontroller.

6. The convenient-to-hold two-dimensional code scanning gun according to claim 1, characterized in that: A plurality of first magnetic blocks are embedded in the front fixing plate corresponding to the storage slot, and a plurality of second magnetic blocks are embedded in the rear fixing plate corresponding to the first magnetic blocks.

7. The convenient-to-hold two-dimensional code scanning gun according to claim 2, characterized in that: A first limiting ring is integrally formed at the top of the gripping handle corresponding to the first sliding block, and a second limiting ring is integrally formed at the top of the first adjusting cylinder corresponding to the second sliding block.

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