Anti-drop handheld three-dimensional scanner

Abstract

The application relates to the technical field of three-dimensional scanners, in particular to a hand-held three-dimensional scanner capable of preventing falling, which comprises a scanner shell, two supporting rods are fixedly connected to the inner bottom surface of the scanner shell in a symmetrical mode, and a supporting plate is fixedly connected to the top of the supporting rods; a processor frame is fixedly connected to the top of the supporting plate, and the processor frame is used for protecting a processor; a plurality of connecting rods are fixedly connected to the bottom of the supporting plate, and a plurality of scanning lenses are fixedly connected to the bottom of the connecting rods; in order to ensure that protection can be carried out under any condition, the anti-falling belt can be gathered when the device is used by pressing the adjusting unit with fingers, the anti-falling belt is fixed to the hand of a worker in the gathering mode in the use process, the sliding of the anti-falling belt in the horizontal direction can be avoided, the anti-falling belt can be relaxed by loosening the adjusting unit after scanning is completed, the wearing is convenient, and the anti-falling hand can be ensured during use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of three-dimensional scanners, in particular to a hand-held three-dimensional scanner capable of preventing falling. BACKGROUND

[0002] The hand-held three-dimensional scanner has quite extensive uses by collecting model data through scanning, and can be applied in many fields. The hand-held three-dimensional scanner has multiple types and multiple ways to scan objects. The scanning can obtain and analyze the shape and appearance data of objects or environments in the real world through point clouds. The more accurate the model created by the point clouds is, the higher the accuracy is.

[0003] Considering that the device is hand-held when in use, and the current users are mostly normal people, and because the technical requirements for use are low, the device can be operated by special people, such as people with impaired hand function. Since the gripping force of people with impaired hand function is usually lower than that of normal people, the gripping ability is poor, which makes the device in the prior art inconvenient for special people to use when in use.

[0004] Considering that the anti-falling belt is usually used in the prior art to prevent falling off the hand, but only protection can be ensured when falling vertically. If the object is scanned from high to low, the hand will tilt downward, and at this time, the anti-falling belt will slide downward from the horizontal direction of the palm. If the device falls at this time, protection cannot be ensured. SUMMARY

[0005] The present application aims to provide a hand-held three-dimensional scanner capable of preventing falling, to solve the problems in the background art.

[0006] To solve the above technical problems, the present application is implemented by the following technical scheme:

[0007] The present application is a hand-held three-dimensional scanner capable of preventing falling, comprising a scanner shell, two support rods are symmetrically and fixedly connected to the inner bottom surface of the scanner shell, and a support plate is fixedly connected to the top of the support rods; a processor frame is fixedly connected to the top of the support plate, and the processor frame is used to protect the processor; a plurality of connecting rods are fixedly connected to the bottom of the support plate, and a scanning lens is fixedly connected to the bottom of the connecting rods;

[0008] A sliding groove is symmetrically formed in the surface of the scanner shell, an adjusting unit is slidably connected in the sliding groove, the adjusting unit is fixedly connected with a protection unit and a collection unit respectively; the collection unit is fixedly connected with an anti-falling belt, and the anti-falling belt penetrates through the top of the scanner shell; the adjusting unit is used to adjust the protection unit and the collection unit, the protection unit is used to protect the scanning lens, and the collection unit is used to collect the anti-falling belt;

[0009] The converging unit comprises a fixed block and a pushing block, the pushing block is fixedly connected with the adjusting unit, two pushing rods are fixedly connected with the pushing block away from the adjusting unit, a traction rod is hinged between the pushing rods, hinged rods are hinged at both ends of the traction rod, the top of the fixed block is fixedly connected with the inner top surface of the scanner shell, the bottom of the fixed block is connected with the traction rod through the hinged rod, the top of the hinged rod away from the fixed block on the side of the traction rod is fixedly connected with a traction block, one side of the traction block is fixedly connected with the anti-off belt, the fixed block is used for fixing the position of the traction rod, the pushing block is used for pushing the traction rod to rotate, and the traction rod is used for controlling the movement of the traction block.

[0010] By adopting the technical scheme, in order to ensure that protection can be performed in any case, the anti-off belt is converged by pressing the adjusting unit with fingers when the equipment is used, the anti-off belt is fixed with the hands of the staff in the use process, at this time, the anti-off belt can be prevented from sliding in the horizontal direction, and the anti-off belt can be relaxed by releasing the adjusting unit after the scanning is completed, so that the wearing is convenient, and the anti-off hand can be ensured during use.

[0011] Further, positioning blocks are fixed on both sides of the top of the processor frame, waist-shaped blocks are fixedly connected on both sides of the processor frame, waist-shaped grooves are formed in the surfaces of the waist-shaped blocks, the positioning blocks are located on the side of the processor frame close to the converging unit, and the waist-shaped blocks are located on the side close to the protection unit.

[0012] The protection unit comprises two hinged blocks, the hinged blocks are fixedly connected with both ends of one side of the adjusting unit, hinged holes are formed in opposite ends of the hinged blocks, crank connecting rods are hinged in the hinged holes, the crank connecting rods are hinged with the positioning blocks at the middle portions, sliding blocks are fixedly connected with one end of the crank connecting rods away from the hinged blocks, the sliding blocks are slidably connected with the inner walls of the waist-shaped grooves on the side close to the processor frame, the bottoms of the sliding blocks are fixedly connected with lifting plates, the lifting plates are slidably connected with the processor frame and the waist-shaped blocks, the bottoms of the lifting plates are fixedly connected with a plurality of lifting blocks, the bottoms of the lifting blocks are fixedly connected with protection shells, and the protection shells are sleeved with the scanning lenses.

[0013] By adopting the technical scheme, in order to prevent the scanning lens from being damaged when the equipment is off the hand, the protection shell can wrap the scanning lens when the equipment is not used, the protection shell can be pushed outwards by pressing the adjusting unit when scanning is needed, the scanning lens can be wrapped, the scanning lens can be prevented from being damaged due to falling, and the protection shell can wrap the scanning lens when not in use, so that dust and impurities can be prevented from falling on the scanning lens, and the influence on subsequent imaging can be avoided.

[0014] The protective shell can be retracted when the adjusting unit is pressed, the imaging of the scanning lens will not be affected after the protective shell is retracted, the amount of light entering the scanning lens can be controlled by controlling the degree of retraction of the protective shell during use, and side light can be prevented from entering the scanner to cause overexposure, thereby avoiding interference with the imaging of the scanner.

[0015] Further, the adjusting unit comprises a first adjusting block and a second adjusting block, the first adjusting block and the second adjusting block are both in sliding connection with the sliding groove, and the first adjusting block and the second adjusting block are both connected with the scanner shell through the first spring; the first adjusting block is fixedly connected with the pushing block, and the second adjusting block is fixedly connected with the hinged block.

[0016] With the above technical solution, when using, the thumb and the remaining four fingers are placed on the first adjusting block and the second adjusting block respectively, and the bunching of the anti-loosing belt and the movement of the protective shell can be controlled by pressing the first adjusting block and the second adjusting block. In order to ensure that people with poor grip can also operate the device, only the first spring needs to be selected to ensure that the bunching unit and the protection unit can be reset.

[0017] Further, the hinged part of the pushing rod and the traction rod is away from the middle part of the traction rod and close to the fixed block.

[0018] With the above technical solution, by locating the hinged part of the pushing rod and the traction rod closer to the fixed block, the pushing rod can make the end away from the fixed block travel longer when pushing the traction rod, thereby ensuring that only a small force needs to be pressed to completely bunch the anti-loosing belt when using, and ensuring that people with small grip or special groups will not drop the device when using.

[0019] Further, the top of the scanner shell is fixedly connected with three limiting blocks, the limiting blocks are arranged at the vertices of an isosceles triangle, two of the limiting blocks are located on the side close to the second adjusting block, and one of the limiting blocks is located on the side close to the first adjusting block, the inner wall of the limiting block is sleeved with the anti-loosing belt, and the limiting block is used to fix the position of the anti-loosing belt.

[0020] With the above technical solution, by arranging the limiting blocks, one side of the anti-loosing belt can be fixed on the top of the scanner shell, when wearing, the other side of the anti-loosing belt can be lifted, and the hand can be placed in the anti-loosing belt, even with one hand, the operation can be realized, reducing the steps of wearing the anti-loosing belt, not only saving time but also facilitating special groups to wear.

[0021] Further, both ends of the anti-loosing belt are fixed on the fixed block, and the part of the anti-loosing belt outside the scanner shell is first passed through the two limiting blocks close to the second adjusting block and connected at the limiting block close to the first adjusting block.

[0022] The technical scheme is adopted, the anti-falling belt is changed from single to double by changing the winding mode of the anti-falling belt, the support property of the anti-falling belt is increased, the anti-falling belt can be supported by the other side when the anti-falling belt is broken, the device is prevented from falling, and the possibility of falling due to wear of the anti-falling belt is reduced.

[0023] Further, the bottom of the lifting plate is connected with the top of the supporting plate through a second spring, and the second spring is symmetrically provided with two.

[0024] The technical scheme is adopted, the protection shell is extended outward to protect the scanning lens when the device falls, the second spring is arranged, the lifting plate is pulled back to push the protection shell to protect the scanning lens, and the protection shell is buffered when contacting the ground, so that the electronic elements in the device are prevented from being damaged by excessive hard impact.

[0025] Further, the top of the first adjusting block and the second adjusting block is clamped with a clamping block, the clamping block is stepwise inclined, the top of the clamping block is parallel to the top of the scanner shell, and the surface of the adjusting block and the clamping block is provided with an anti-skid pad.

[0026] The technical scheme is adopted, the clamping block is arranged, the gripping range is increased, the gripping range is reduced, the clamping block is gripped when used by special groups, the adjusting block cannot be gripped, and the device cannot be used by some groups, the anti-skid pad is arranged, the friction between the device and the hand is increased, and the device is prevented from falling.

[0027] The present application has the following advantages:

[0028] 1. The present application can ensure protection in any case, the anti-falling belt is gathered by pressing the adjusting unit with fingers when the device is used, the anti-falling belt is fixed with the hands of the worker in the use process, the anti-falling belt is prevented from sliding in the horizontal direction, the anti-falling belt is relaxed by releasing the adjusting unit after scanning, the device is convenient to wear, and the device is prevented from falling.

[0029] 2. The present application can prevent the scanning lens from being damaged when the device is dropped, the protection shell wraps the scanning lens when the device is not used, the protection shell is pushed outward by pressing the adjusting unit when scanning is needed, the scanning lens is wrapped, the scanning lens is prevented from being damaged by falling, the protection shell wraps the scanning lens when not used, dust and impurities are prevented from falling on the scanning lens, and the influence on subsequent imaging is avoided.

[0030] 3. The present application can make the protective shell be retracted when the adjusting unit is pressed, will not affect the imaging of the scanning lens after the protective shell is retracted, and can control the light amount of the scanning lens by controlling the degree of retraction of the protective shell during use, can prevent side light from entering the scanner to cause overexposure, and thus avoids interfering with the imaging of the scanner. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0033] Figure 2 It is a schematic diagram of the bottom of the overall structure of the present application;

[0034] Figure 3 It is a longitudinal sectional view of the overall structure of the present application;

[0035] Figure 4 It is a partial enlarged view of A in the present application; Figure 3

[0036] Figure 5 It is a transverse sectional view of the overall structure of the present application;

[0037] Figure 6 It is a schematic diagram of the structure of the adjusting unit, the protective unit and the converging unit of the present application;

[0038] Figure 7 It is a schematic diagram of the structure of the protective unit of the present application;

[0039] Figure 8 It is an exploded view of the protective unit of the present application;

[0040] Figure 9 It is a schematic diagram of the structure of the converging unit of the present application.

[0041] In the drawings, the components represented by each reference numeral are listed as follows:

[0042] ​As shown in the figure, the application is a kind of anti-falling handheld three-dimensional scanner, which comprises a scanner shell 1, the inner bottom surface of the scanner shell 1 is symmetrically fixedly connected with two supporting rods 14, the top of the supporting rod 14 is fixedly connected with a supporting plate 12; the top of the supporting plate 12 is fixedly connected with a processor frame 13, and the processor frame 13 is used for protecting the processor; the bottom of the supporting plate 12 is fixedly connected with a plurality of connecting rods 15, and the bottom of the connecting rod 15 is fixedly connected with a scanning lens 11; DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0044] Please refer to Figures 1-9 As shown in the figure, the application is a kind of anti-falling handheld three-dimensional scanner, which comprises a scanner shell 1, the inner bottom surface of the scanner shell 1 is symmetrically fixedly connected with two supporting rods 14, the top of the supporting rod 14 is fixedly connected with a supporting plate 12; the top of the supporting plate 12 is fixedly connected with a processor frame 13, and the processor frame 13 is used for protecting the processor; the bottom of the supporting plate 12 is fixedly connected with a plurality of connecting rods 15, and the bottom of the connecting rod 15 is fixedly connected with a scanning lens 11;

[0045] The surface of the scanner shell 1 is symmetrically provided with a sliding groove, and the sliding groove is slidably connected with an adjusting unit 2, the adjusting unit 2 is fixedly connected with a protection unit 3 and a collection unit 4; the collection unit 4 is fixedly connected with an anti-falling belt 45, and the anti-falling belt 45 penetrates the top of the scanner shell 1; the adjusting unit 2 is used for adjusting the protection unit 3 and the collection unit 4, the protection unit 3 is used for protecting the scanning lens 11, and the collection unit 4 is used for collecting the anti-falling belt 45;

[0046] The convergence unit 4 comprises a fixed block 41 and a pushing block 43, the pushing block 43 is fixedly connected with the adjusting unit 2, the pushing block 43 is fixedly connected with two pushing rods on the side away from the adjusting unit 2; the traction rod 42 is hinged between the pushing rods, and the two ends of the traction rod 42 are hingedly connected with the hinge rods; the top of the fixed block 41 is fixedly connected with the inner top surface of the scanner shell 1, and the bottom of the fixed block 41 is connected with the traction rod 42 through the hinge rod; the top of the hinge rod on the side of the traction rod 42 away from the fixed block 41 is fixedly connected with the traction block 44, and one side of the traction block 44 is fixedly connected with the anti-falling strap 45; the fixed block 41 is used for fixing the position of the traction rod 42, the pushing block 43 is used for pushing the traction rod 42 to rotate, and the traction rod 42 is used for controlling the movement of the traction block 44.

[0047] In the embodiment, considering that the device is handheld when in use, most of the current users are normal people, and because the use technical requirement is low, the device can be provided for special people to operate, such as people who lack some fingers. Because the people who lack fingers usually have lower grip strength and poorer gripping ability than normal people, the device in the prior art is mostly inconvenient for special people to use when in use;

[0048] Considering that the anti-falling strap 45 is usually used to wrap around the hand to prevent the hand from falling off in the prior art, but only the vertical falling can be prevented when in use. If the object is scanned from high to low, the hand will tilt downward, and at this time, the anti-falling strap 45 will slide downward from the horizontal direction of the palm. If the device falls at this time, it will not be protected;

[0049] In use, first pass the hand through the anti-falling strap 45, and place the hand on the adjusting unit 2. By pressing the adjusting unit 2, the pushing block 43 can be moved, and the pushing block 43 can drive the pushing rod to move when moving, and the movement of the pushing rod can drive the traction rod 42 to rotate around the traction rod 42 of the fixed block 41, and the traction rod 42 on the other side can drive the traction block 44 to move. When the traction block 44 moves, the anti-falling strap 45 can be pulled into the device, and the anti-falling strap 45 can be converged. After the scanning is completed, the anti-falling strap 45 can be relaxed by loosening the adjusting unit 2, so that the device is very convenient to wear. When used by special people, the device may not be placed on the plane in the first time due to unstable grip, causing the device to fall off the hand. The binding of the palm by the anti-falling strap 45 can also assist special people to prevent the device from falling off the hand, avoid the situation of falling off the hand, and prevent the anti-falling strap 45 from sliding in the horizontal direction due to excessive relaxation after the anti-falling strap 45 is converged, which can further avoid the situation of falling off the hand.

[0050] Specifically, the two sides of the top of the processor frame 13 are fixed with positioning blocks 131, and the two sides of the processor frame 13 are fixedly connected with waist-shaped blocks 132, the surface of the waist-shaped block 132 is provided with a waist-shaped slot, the positioning block 131 is located on the side of the processor frame 13 close to the convergence unit 4, and the waist-shaped block 132 is located on the side close to the protection unit 3.

[0051] The protection unit 3 comprises two hinged blocks 31, the hinged blocks 31 are fixedly connected with the two ends of one side of the adjusting unit 2, and the opposite ends of the hinged blocks 31 are both provided with a hinged hole; a crank connecting rod 32 is hinged in the hinged hole; the middle part of the crank connecting rod 32 is hinged with the positioning block 131, and the end of the crank connecting rod 32 away from the hinged block 31 is fixedly connected with a sliding block 321; the side of the sliding block 321 close to the processor frame 13 is in sliding connection with the inner wall of the waist-shaped slot, and the bottom of the sliding block 321 is fixedly connected with a lifting plate 33; the lifting plate 33 is in sliding connection with the processor frame 13 and the waist-shaped block 132, and the bottom of the lifting plate 33 is fixedly connected with a plurality of lifting blocks 34; the bottom of the lifting block 34 is fixedly connected with a protection shell 35, and the protection shell 35 is sleeved with the scanning lens 11.

[0052] In the embodiment, considering that the device may be dropped due to the breakage of the anti-dropping belt 45 or the absence of the anti-dropping belt 45 during use, and the scanning lens 11 is heavy and downward, there is a great probability that the scanning lens 11 will be damaged after being dropped, and the price of subsequent maintenance is also very expensive;

[0053] In order to prevent the scanning lens 11 from being damaged when the device is dropped, the protection shell 35 wraps the scanning lens 11 when the device is not used, and when scanning is needed, the adjusting unit 2 is pressed to drive the hinged block 31 to move, and the hinged block 31 drives one end of the crank connecting rod 32 to move when the hinged block 31 moves, and the other end of the crank connecting rod 32 drives the sliding block 321 to slide in the waist-shaped slot of the waist-shaped block 132 due to the hinging of the middle part of the crank connecting rod 32 with the positioning block 131 and the arrangement of the waist-shaped block 132, and the other end of the crank connecting rod 32 drives the sliding block 321 to move upward when the hinged block 31 drives the crank connecting rod 32 to move inward, and the sliding block 321 drives the lifting plate 33 to move, and the lifting block 34 and the protection shell 35 also move upward; if the device is dropped, the protection shell 35 will be pushed outward by the automatic resetting force of the adjusting unit 2, and the scanning lens 11 will be wrapped, so that the scanning lens 11 will not be damaged due to falling; the protection shell 35 wrapping the scanning lens 11 can also reduce the dust and impurities falling on the scanning lens 11, so as to avoid affecting the subsequent imaging;

[0054] When the adjusting unit 2 is pressed, the protective shell 35 can be retracted, and after the protective shell 35 is retracted, the imaging of the scanning lens 11 will not be affected, and during use, the amount of light entering the scanning lens 11 can be controlled by controlling the degree of retraction of the protective shell 35, so that side light can be prevented from entering the scanner to cause overexposure, and the amount of light entering the scanner can be prevented from being too large to interfere with the imaging of the scanner.

[0055] Specifically, the adjusting unit 2 includes a first adjusting block 21 and a second adjusting block 24, and the first adjusting block 21 and the second adjusting block 24 are slidably connected with the sliding groove, and the first adjusting block 21 and the second adjusting block 24 are connected with the scanner shell 1 through the first spring 22; the first adjusting block 21 is fixedly connected with the pushing block 43, and the second adjusting block 24 is fixedly connected with the hinged block 31.

[0056] In this embodiment, it is considered that while the device can be normally used by normal people, it also needs to ensure that the device can be normally used by some special people, such as people with poor grip due to lack of fingers, etc., and when using the device, the protective shell 35 may fall off or the position of the protective shell 35 cannot be accurately controlled due to unstable grip;

[0057] When normal people use the device, the thumb and the remaining four fingers are respectively placed on the first adjusting block 21 and the second adjusting block 24, and when the first adjusting block 21 and the second adjusting block 24 are pressed, the hinged block 31 and the pushing block 43 are moved, and when the hinged block 31 and the pushing block 43 are moved, the movement of the protective shell 35 and the retraction of the anti-falling belt 45 can be controlled respectively;

[0058] In order to ensure that people with poor grip or special people can also operate the device, the elastic force of the first spring 22 only needs to ensure that the retraction unit 4 and the protection unit 3 can be reset, thereby reducing the grip strength required for pressing the first spring 22, and when the elastic force of the first spring 22 is small, hand fatigue caused by long-term pressing of the first adjusting block 21 and the second adjusting block 24 can be reduced, which is good for both normal people and special people.

[0059] Specifically, the hinged part of the pushing rod and the traction rod 42 is away from the middle part of the traction rod 42 and close to the fixed block 41.

[0060] In this embodiment, it is considered that people with unstable grip may not be able to press the first spring 22 completely when using the device, which may cause the retraction unit 4 to fail to retract the anti-falling belt 45 completely, and if the hand is off at this time, the device cannot be completely prevented from falling;

[0061] By pushing the lever and the position of the traction rod 42 hinge closer to the fixed block 41, the push rod can make the far end of the fixed block 41 longer when pushing the traction rod 42, so that only a small force is required to press the first adjusting block 21 during use to make the anti-loose belt 45 completely bundled, ensuring that the grip is smaller and that some special groups can make the anti-loose belt 45 bundled when using, even if the grip is poor. The anti-loose belt 45 can be bundled to reduce the occurrence of equipment falling off the hand.

[0062] Specifically, the top of the scanner shell 1 is fixedly connected with three limiting blocks 46, and the limiting blocks 46 are arranged at the vertices of an isosceles triangle, two limiting blocks 46 are located on one side close to the second adjusting block 24, and one limiting block 46 is located on one side close to the first adjusting block 21. The inner wall of the limiting block 46 is sleeved with the anti-loose belt 45, and the limiting block 46 is used to fix the position of the anti-loose belt 45.

[0063] Specifically, both ends of the anti-loose belt 45 are fixed on the fixed block 41, and the part of the anti-loose belt 45 located outside the scanner shell 1 is first passed through the two limiting blocks 46 close to the second adjusting block 24, and is connected at the limiting block 46 close to the first adjusting block 21.

[0064] In this embodiment, considering that the position of the anti-loose belt 45 may not be convenient to wear, and the anti-loose belt 45 is soft and usually sticks together when not in use, it is necessary to re-expand the anti-loose belt 45 and put the hand in every time the device is used. However, for people with only one hand, it is not convenient to put the hand into the anti-loose belt 45 without the assistance of the other hand;

[0065] Considering that the existing anti-loose belt 45 will be worn out after a long time of use, and the device will fall off when it breaks during use, considering that the device will be hung on the arm or palm by the anti-loose belt 45 after falling off, and will be perpendicular to the arm due to gravity. At this time, if you need to pick up the device again, you need to use the other hand to help you up, but for people with only one hand, you need to put the device back on the plane to pick it up again. But when placed on the plane, the device may collide with the ground or wall due to inertia because of the traction of the anti-loose belt 45, which may cause damage to the device;

[0066] Considering that there is usually no one to assist in wearing the device for special groups, the side of the anti-escape belt 45 can be fixed on the top of the scanner shell 1 through the setting of the limiting block 46. When wearing, the device is first placed on a flat surface or table. Since one side of the anti-escape belt 45 is fixed, only the other side of the anti-escape belt 45 needs to be lifted with fingers, and the fingers support the anti-escape belt 45. At this time, the hand is placed into the anti-escape belt 45, and the hand can be completely placed into the anti-escape belt 45 even with one hand, reducing the steps of wearing the anti-escape belt 45, which can save time and facilitate the wearing of special groups; If the group without fingers wears, the part of the bone protrusion can be used to lift the anti-escape belt 45, and after lifting, the other side of the hand is placed into the anti-escape belt 45. After the hand enters the anti-escape belt 45, it is supported by the arm, and the part of the bone protrusion can be placed into the anti-escape belt from the bottom by rotating the hand, so that the device is completely worn;

[0067] During use of the device, the anti-escape belt 45 is limited by the limiting block, which can change the contact between the anti-escape belt 45 and the hand from a line to a triangular surface, increasing the contact area. At the same time, the length of the anti-escape belt 45 does not change, and the anti-escape belt 45 is bunched by the bunching unit 4, so that the device does not have enough length to fall after falling off the hand, reducing the falling height and angle of the device. At the same time, the increase of the contact area can avoid the device falling and causing the arm to be scratched and bruised by pulling the anti-escape belt 45;

[0068] At the same time, when the hand is placed into the anti-escape belt 45, the fingers can pass through the anti-escape belt 45. When the device falls off the hand, the anti-escape belt 45 is bound at the fingers and the wrist, thereby reducing the range of the device falling off and making the device always fit the wrist. It can avoid the situation of hanging when the device falls off the hand. When the device falls off, it only needs to bend the wrist or rotate the arm to pick up the device. Since the device is always in contact with the wrist through the anti-escape belt 45, the palm of the special group can be relaxed when using, which can reduce the force for holding the device. At the same time, the force of the palm can make the special group press the first adjusting block 21 and the second adjusting block 24 when using, to help adjust the bunching unit 4 and the protection unit 3, avoiding the situation that the special group cannot hold the device without the assistance of the other hand;

[0069] By changing the winding method of the anti-escape belt 45, the shape of the anti-escape belt 45 can be changed to a butterfly-shaped double support, which can increase the contact area with the hand and increase the support of the anti-escape belt 45. Since the anti-escape belt 45 is fixed by the limiting block 46, when one side of the anti-escape belt 45 breaks, the other side can be supported to prevent the device from falling and reduce the possibility of falling due to wear of the anti-escape belt 45;

[0070] The present application considers that if the market demand is less specially designed for special groups, the production and sales of enterprises are more difficult, resulting in higher production cost, so the design considers the use of normal people and special groups, and the device can be used by normal people and special groups at the same time, avoiding the situation that the end is reversed because of the special design for special groups.

[0071] Specifically, the bottom of the lifting plate 33 is connected with the top of the support plate 12 through the second spring 36, and the second spring 36 is symmetrically provided with two.

[0072] In this embodiment, considering that the lifting plate 33 is reset only by the first spring 22 when it is pressed down, when the device falls, it may not be able to recover in time due to the small elastic force;

[0073] When the device falls, the protective shell 35 needs to be extended outward to protect the scanning lens 11, and the second spring 36 is arranged between the lifting plate 33 and the support plate 12, since the position of the support plate 12 is fixed, when the lifting plate 33 is pulled, it can be reset by the second spring 36 to push the protective shell 35 to protect the scanning lens 11, and the second spring 36 can also be compressed when the protective shell 35 contacts the ground to buffer, so as to prevent the electronic elements inside the device from being damaged by the hard impact;

[0074] Specifically, the top of the first adjusting block 21 and the second adjusting block 24 is clamped with the clamping block 23, the clamping block 23 is stepped inclined, and the top of the clamping block 23 is parallel to the top of the scanner shell 1; the surface of the adjusting block and the clamping block 23 is provided with anti-skid pad.

[0075] In this embodiment, considering that some special groups lack the thumb and can only rely on the remaining four fingers and palm to grip, and some groups have part of the joints cut off, which will cause the gripping ability of this part of the group to decline and the gripping range to become smaller, and the scanner in the prior art is usually designed for the palm of the normal group, which will be inconvenient or impossible for special groups to use;

[0076] The positions of the first adjusting block 21 and the second adjusting block 24 are more suitable for normal people to use, when special groups use, the clamping block 23 can be installed on the top of the first adjusting block 21 and the second adjusting block 24, through the clamping block 23, the grippable range can be increased, and the range that needs to be gripped can be reduced, when some special groups use, only the clamping block 23 can be gripped, and the positions of the first adjusting block 21 and the second adjusting block 24 can be operated by pressing the clamping block 23, thereby the operation of the convergence unit 4 and the protection unit 3 can be controlled, which can avoid the situation that the position of the adjusting block is too low to be gripped, so that some groups cannot use; at the same time, the setting of the anti-skid pad can increase the friction between the device and the hand, thereby further preventing falling.

[0077] In use,

[0078] First, in order to prevent the device from falling off and causing damage to the scanning lens 11, the protective shell 35 will wrap the scanning lens 11 when the device is not in use; by changing the winding method of the anti-falling belt 45, the anti-falling belt 45 can be changed from single support to double support, thereby increasing the support of the anti-falling belt 45, and when the anti-falling belt 45 breaks, the other side can be supported to prevent the device from falling and reduce the possibility of falling due to wear of the anti-falling belt 45;

[0079] When wearing, considering that special groups usually do not have others to assist in wearing the device, by setting the limiting block 46, one side of the anti-falling belt 45 can be fixed on the top of the scanner shell 1, when wearing, first place the device on a flat surface or table, since one side of the anti-falling belt 45 is fixed, only the other side of the anti-falling belt 45 needs to be lifted with fingers, and the fingers support the anti-falling belt 45, at this time the hand is placed into the anti-falling belt 45, and then curling the fingers can completely put the hand into the anti-falling belt 45, even with one hand, the operation can be achieved, reducing the steps of wearing the anti-falling belt 45, not only saving time but also facilitating the wearing of special groups; If the group without fingers wears, the part of the bone protrusion can be used to lift the anti-falling belt 45, and after lifting, the other side of the hand is placed into the anti-falling belt 45, after the hand enters the anti-falling belt 45, the bone protrusion part is placed into the anti-falling belt from the bottom by rotating the hand, thereby completely wearing the device;

[0080] Since the positions of the first adjusting block 21 and the second adjusting block 24 are more suitable for normal groups, when special groups use, the clamping block 23 can be installed on the top of the first adjusting block 21 and the second adjusting block 24, the clamping block 23 can increase the gripping range and reduce the range that needs to be gripped, when some special groups use, only the clamping block 23 can be gripped, and the positions of the first adjusting block 21 and the second adjusting block 24 can be operated by pressing the clamping block 23, thereby controlling the operation of the collection unit 4 and the protection unit 3, which can avoid the situation that the position of the adjusting block is too low to be gripped, thereby causing some groups to be unable to use; At the same time, the setting of the anti-slip pad can increase the friction between the device and the hand, thereby further preventing falling.

[0081] Secondly, in use, the hand is placed on the adjusting unit 2, the push block 43 can be moved by pressing the second adjusting block 24, the push block 43 moves and drives the push rod to move, the movement of the push rod drives the traction rod 42 to rotate around the traction rod 42 of the fixed block 41 as the axis, and the traction rod 42 on the other side drives the traction block 44 to move, when the traction block 44 moves, the anti-falling belt 45 can be pulled into the device, and the anti-falling belt 45 is bunched; after the scanning is completed, the anti-falling belt 45 can be loosened by releasing the second adjusting block 24, so that the device is very convenient to wear; when used by special groups, the binding of the anti-falling belt 45 to the palm can also avoid the device from falling off; after the anti-falling belt 45 is bunched, the hand of the worker can be fixed, thereby avoiding the situation of falling off, and after the anti-falling belt 45 is bunched, the anti-falling belt 45 can be prevented from sliding in the horizontal direction due to excessive looseness, which can further avoid the situation of falling off.

[0082] By making the position of the hinge between the push rod and the traction rod 42 closer to the fixed block 41, the stroke of the end of the push rod away from the fixed block 41 can be longer when the push rod pushes the traction rod 42, so that only a small force needs to be pressed during use to completely bunch the anti-falling belt 45, ensuring that the situation of falling off does not occur when used by people with small grip strength or special groups.

[0083] Finally, when scanning, the first adjusting block 21 is pressed to drive the hinge block 31 to move, the hinge block 31 moves and drives one end of the crank connecting rod 32 to move, since the middle of the crank connecting rod 32 is hinged to the positioning block 131, and due to the arrangement of the waist-shaped block 132, the other end of the crank connecting rod 32 drives the sliding block 321 to slide in the waist-shaped slot of the waist-shaped block 132, when the hinge block 31 pushes the crank connecting rod 32 into the device, the other end of the crank connecting rod 32 drives the sliding block 321 to move upwards, when the sliding block 321 moves upwards, it drives the lifting plate 33 to move, and also drives the lifting block 34 and the protective shell 35 to move; if the situation of falling off occurs, the protective shell 35 will be pushed outwards by the force of the first spring 22 automatically resetting the first adjusting block 21, and the scanning lens 11 will be wrapped, protecting the scanning lens 11 from being damaged by falling; when not in use, the protective shell 35 wrapping the scanning lens 11 can also reduce dust and other impurities falling on the scanning lens 11, avoiding affecting subsequent imaging;

[0084] When the adjusting unit 2 is pressed, the protective shell 35 can be retracted, after the protective shell 35 is retracted, the imaging of the scanning lens 11 will not be affected, and during use, the degree of retraction of the protective shell 35 can be controlled to control the amount of light entering the scanning lens 11, which can prevent side light from entering the scanner and causing overexposure, and prevent the large amount of light from interfering with the imaging of the scanner.

[0085] The preferred embodiments of the application disclosed above are only to help explain the present application. The preferred embodiments are not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of this teaching. It is intended that the specification be considered as exemplary only with the true scope of the application being indicated by the following claims and their full scope of equivalents.

Claims

1. A non-detachable handheld 3D scanner, comprising a scanner housing (1), characterized in that: The scanner housing (1) has two support rods (14) symmetrically fixedly connected to its inner bottom surface. The top of the support rods (14) is fixedly connected to a support plate (12). The top of the support plate (12) is fixedly connected to a processor frame (13), which is used to protect the processor. The bottom of the support plate (12) is fixedly connected to multiple connecting rods (15), and the bottom of the connecting rods (15) is fixedly connected to a scanning lens (11). The scanner housing (1) has symmetrical sliding grooves on its surface. Each sliding groove is slidably connected to an adjustment unit (2). The adjustment unit (2) is fixedly connected to a protection unit (3) and a retracting unit (4). The retracting unit (4) is fixedly connected to an anti-detachment strap (45), which extends through the top of the scanner housing (1). The adjustment unit (2) is used to adjust the protection unit (3) and the retracting unit (4). The protection unit (3) is used to protect the scanning lens (11), and the retracting unit (4) is used to retract the anti-detachment strap (45). The gathering unit (4) includes a fixed block (41) and a pushing block (43). The pushing block (43) is fixedly connected to the adjustment unit (2). Two pushing rods are fixedly connected to the side of the pushing block (43) away from the adjustment unit (2). A traction rod (42) is hinged between the pushing rods. Both ends of the traction rod (42) are hinged with hinge rods. The top of the fixed block (41) is fixedly connected to the inner top surface of the scanner housing (1). The bottom of the fixed block (41) is connected to the traction rod (42) through the hinge rod. A traction block (44) is fixedly connected to the top of the hinge rod on the side of the traction rod (42) away from the fixed block (41). One side of the traction block (44) is fixedly connected to the anti-slip strap (45). The fixed block (41) is used to fix the position of the traction rod (42). The pushing block (43) is used to push the traction rod (42) to rotate. The traction rod (42) is used to control the movement of the traction block (44).

2. The anti-drop handheld 3D scanner according to claim 1, characterized in that: Positioning blocks (131) are fixed on both sides of the top of the processor frame (13), and waist-shaped blocks (132) are fixedly connected to both sides of the processor frame (13). Waist-shaped grooves are opened on the surface of the waist-shaped blocks (132). The positioning blocks (131) are located on the side of the processor frame (13) close to the convergence unit (4), and the waist-shaped blocks (132) are located on the side close to the protection unit (3). The protection unit (3) includes two hinge blocks (31), which are fixedly connected to one end of the adjustment unit (2). Each hinge block (31) has a hinge hole at one opposite end. A crank connecting rod (32) is hinged within the hinge hole. The middle of the crank connecting rod (32) is hinged to a positioning block (131). A sliding block (321) is fixedly connected to the end of the crank connecting rod (32) away from the hinge block (31). The sliding block (321) rests against... One side of the near-processor frame (13) is slidably connected to the inner wall of the waist-shaped groove, and the bottom of the sliding block (321) is fixedly connected to the lifting plate (33); the lifting plate (33) is slidably connected to both the processor frame (13) and the waist-shaped block (132), and a plurality of lifting blocks (34) are fixedly connected to the bottom of the lifting plate (33); a protective shell (35) is fixedly connected to the bottom of each lifting block (34), and the protective shell (35) is sleeved with the scanning lens (11).

3. The anti-drop handheld 3D scanner according to claim 2, characterized in that: The adjustment unit (2) includes a first adjustment block (21) and a second adjustment block (24). The first adjustment block (21) and the second adjustment block (24) are slidably connected to the sliding groove. The first adjustment block (21) and the second adjustment block (24) are connected to the scanner housing (1) by a first spring (22). The first adjustment block (21) is fixedly connected to the push block (43), and the second adjustment block (24) is fixedly connected to the hinge block (31).

4. The anti-drop handheld 3D scanner according to claim 1, characterized in that: The hinge point between the push rod and the traction rod (42) is away from the middle of the traction rod (42) and close to the fixing block (41).

5. The anti-drop handheld 3D scanner according to claim 3, characterized in that: Three limiting blocks (46) are fixedly connected to the top of the scanner housing (1), and the limiting blocks (46) are arranged at the vertices of an isosceles triangle. Two of the limiting blocks (46) are located on the side closer to the second adjusting block (24), and one of the limiting blocks (46) is located on the side closer to the first adjusting block (21). The inner wall of the limiting block (46) is sleeved with the anti-slip strap (45), and the limiting block (46) is used to fix the position of the anti-slip strap (45).

6. The anti-drop handheld 3D scanner according to claim 5, characterized in that: Both ends of the anti-detachment strap (45) are fixed on the fixing block (41). The part of the anti-detachment strap (45) outside the scanner housing (1) is first passed through by two limiting blocks (46) near the second adjusting block (24), and then connected to the limiting block (46) on the side near the first adjusting block (21).

7. The anti-drop handheld 3D scanner according to claim 2, characterized in that: The bottom of the lifting plate (33) is connected to the top of the support plate (12) by a second spring (36), and there are two second springs (36) symmetrically arranged.

8. The anti-drop handheld 3D scanner according to claim 3, characterized in that: The top of the first adjustment block (21) and the second adjustment block (24) are both fitted with a locking block (23). The locking block (23) is stepped and inclined, and the top of the locking block (23) is parallel to the top of the scanner housing (1). The surfaces of the first adjustment block (21), the second adjustment block (24) and the locking block (23) are all provided with anti-slip pads.

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