Anti-falling handheld three-dimensional scanner

Abstract

The invention relates to the technical field of three-dimensional scanners, in particular to an anti-falling handheld three-dimensional scanner which comprises a scanner shell, two supporting rods are symmetrically and fixedly connected to the inner bottom face of the scanner shell, and a supporting plate is fixedly connected to the tops of the supporting rods; a processor frame is fixedly connected to the top of the supporting plate and 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 bottoms of the connecting rods; in order to ensure that protection can be carried out under any condition, when the equipment is used, the adjusting unit is pressed by fingers to enable the anti-falling belt to be collected, and in the using process, the anti-falling belt is fixed to the hand of a worker through collection of the anti-falling belt, so that the anti-falling belt can be prevented from sliding off in the horizontal direction; and after scanning is finished, the anti-falling belt can be loosened by loosening the adjusting unit, so that wearing is convenient, and hand falling prevention can be guaranteed during use.

Description

Technical Field

[0001] The invention relates to the technical field of three-dimensional scanners, in particular to an anti-falling handheld three-dimensional scanner. Background Art

[0002] The model data collected by handheld 3D scanners through scanning have a wide range of uses. Handheld 3D scanners can be used in many fields. There are many types of handheld 3D scanners and many ways to scan objects. Scanning enables the shape and appearance data of objects or environments in the real world to be obtained and analyzed through point clouds. The more dense the point cloud, the more accurate the model created, and the higher the precision. Considering that the device is handheld when in use, most of the current users are normal people, and because the technical requirements for use are relatively low, the device can be provided to special groups for operation, such as people with impaired hand functions. Since people with impaired hand functions usually have lower grip strength and poorer grasping ability than normal people, most of the devices in the prior art are not convenient for special groups to use; Considering that in the prior art, an anti-slip belt is usually used to prevent the hand from slipping off, but when used, it can only ensure protection against vertical drops. If the hand is tilted downward when scanning an object from high to low, the anti-slip belt will slide down diagonally from the horizontal direction of the palm. If the device falls at this time, it will not be able to protect. Summary of the invention

[0003] The object of the present invention is to provide an anti-falling handheld three-dimensional scanner to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is an anti-falling handheld three-dimensional scanner, comprising a scanner housing, wherein the inner bottom surface of the scanner housing is symmetrically and fixedly connected with two support rods, the tops of the support rods are fixedly connected with a support plate; the top of the support plate is fixedly connected with a processor frame, the processor frame is used to protect the processor; the bottom of the support plate is fixedly connected with a plurality of connecting rods, the bottoms of the connecting rods are fixedly connected with a scanning lens; The surface of the scanner housing is symmetrically provided with sliding grooves, and the sliding grooves are slidably connected with adjustment units, and the adjustment units are respectively fixedly connected with a protection unit and a focusing unit; the focusing unit is fixedly connected with an anti-slip belt, and the anti-slip belt runs through the top of the scanner housing; the adjustment unit is used to adjust the protection unit and the focusing unit, the protection unit is used to protect the scanning lens, and the focusing unit is used to focus the anti-slip belt; The focusing unit includes a fixed block and a pushing block, the pushing block is fixedly connected to the adjusting unit, and the side of the pushing block away from the adjusting unit is fixedly connected to two pushing rods; a traction rod is hinged between the pushing rods, and both ends of the traction rod are hinged with hinged rods; the top of the fixed block is fixedly connected to the top surface of the scanner housing, and the bottom of the fixed block is connected to the traction rod through a hinged rod; the top of the hinged rod on the side of the traction rod away from the fixed block is fixedly connected to a traction block, and one side of the traction block is fixedly connected to an anti-slip belt; the fixed block is used to fix the position of the traction rod, the pushing block is used to push the traction rod to rotate, and the traction rod is used to control the movement of the traction block.

[0005] By adopting the above technical solution, in order to ensure protection under any circumstances, the anti-slip belt will be tightened by pressing the adjustment unit with fingers when the equipment is in use. During use, the anti-slip belt will be fixed to the staff's hand by the tightening of the anti-slip belt. At this time, the anti-slip belt can be prevented from slipping in the horizontal direction, and the anti-slip belt can be loosened by loosening the adjustment unit after the scanning is completed. This is not only convenient to wear, but also can prevent the hand from slipping during use.

[0006] Further, positioning blocks are fixed on both sides of the top of the processor frame, waist-shaped blocks are fixedly connected to both sides of the processor frame, waist-shaped grooves are opened on the surface of the waist-shaped blocks, the positioning blocks are located on the side of the processor frame close to the bundling unit, and the waist-shaped blocks are located on the side close to the protection unit; The protection unit includes two hinge blocks, which are fixedly connected to both ends of one side of the adjustment unit, and hinge holes are opened at opposite ends of the hinge blocks; a crank connecting rod is hinged in the hinge hole; the middle part of the crank connecting rod is hinged to the positioning block, and the end of the crank connecting rod away from the hinge block is fixedly connected to a sliding block; the side of the sliding block close to the processor frame is slidably connected to the inner wall of the waist-shaped groove, and the bottom of the sliding block is fixedly connected to the lifting plate; the lifting plate is slidably connected to the processor frame and the waist-shaped block, and a plurality of lifting blocks are fixedly connected to the bottom of the lifting plate; the bottoms of the lifting blocks are fixedly connected to protective shells, and the protective shells are sleeved with scanning lenses.

[0007] By adopting the above technical solution, in order to prevent the scanning lens from being damaged when the device is out of hand, the protective shell will wrap the scanning lens when the device is not in use. When scanning is required, the protective shell can be pushed outward by pressing the adjustment unit to wrap the scanning lens to protect the scanning lens from being damaged due to falling; when not in use, the protective shell wrapping the scanning lens can also reduce dust and other impurities from falling on the scanning lens to avoid affecting subsequent imaging; When the adjustment unit is pressed, the protective shell can be folded, which will not affect the imaging of the scanning lens. During use, the degree to which the protective shell is folded can be controlled to control the amount of light entering the scanning lens, thereby preventing side light from entering the scanner and causing overexposure, thereby avoiding interference with the scanner's imaging.

[0008] Furthermore, the adjustment unit includes a first adjustment block and a second adjustment block, the first adjustment block and the second adjustment block are both slidably connected to the sliding groove, and the first adjustment block and the second adjustment block are both connected to the scanner housing through a first spring; the first adjustment block is fixedly connected to the pushing block, and the second adjustment block is fixedly connected to the hinge block.

[0009] By adopting the above technical solution, when in use, the thumb and the other four fingers are placed on the first adjustment block and the second adjustment block respectively, and the first adjustment block and the second adjustment block are pressed to control the contraction of the anti-slip belt and the movement of the protective shell. In order to ensure that people with poor grip strength can also operate the device, the selection of the first spring only needs to ensure that the contraction unit and the protection unit can be reset.

[0010] Furthermore, the hinged portion between the push rod and the traction rod is away from the middle portion of the traction rod and close to the fixing block.

[0011] By adopting the above technical solution, the hinged position of the push rod and the traction rod is closer to the fixed block, so that the push rod can make the end away from the fixed block have a longer stroke when pushing the traction rod, thereby ensuring that the anti-slip belt can be completely contracted by pressing with a small force during use, ensuring that the anti-slip belt will not slip out of the hands when used by people with weak grip or some special groups.

[0012] Furthermore, three limit blocks are fixedly connected to the top of the scanner housing, and the limit blocks are arranged as vertices of an isosceles triangle, two of the limit blocks are located on the side close to the second adjustment block, and one of the limit blocks is located on the side close to the first adjustment block, the inner wall of the limit block is socketed with the anti-slip belt, and the limit block is used to fix the position of the anti-slip belt.

[0013] By adopting the above technical solution, one side of the anti-slip belt can be fixed to the top of the scanner housing through the setting of the limit block. When wearing it, the other side of the anti-slip belt can be lifted and the hand can be placed in the anti-slip belt. This operation can be performed even with one hand, reducing the steps of wearing the anti-slip belt, which not only saves time but also makes it convenient for special people to wear it.

[0014] Furthermore, both ends of the anti-slip belt are fixed on the fixed blocks, and the part of the anti-slip belt located outside the scanner housing first passes through two limit blocks close to the second adjustment block, and is connected to a limit block on one side close to the first adjustment block.

[0015] By adopting the above technical solution, by changing the winding method of the anti-slip belt, the anti-slip belt can be changed from a single belt to a double belt, thereby increasing the support of the anti-slip belt. When the anti-slip belt breaks, it can be supported by the other side to prevent the equipment from falling, reducing the possibility of falling due to wear of the anti-slip belt.

[0016] Furthermore, the bottom of the lifting plate is connected to the top of the supporting plate via a second spring, and two second springs are symmetrically arranged.

[0017] With the above technical solution, when the device falls, the protective shell needs to be extended outward to protect the scanning lens. The second spring can not only pull the lifting plate to reset to push the protective shell to protect the scanning lens, but also provide a buffer when the protective shell contacts the ground, so as to prevent excessive hard impact from causing damage to the electronic components inside the device. Furthermore, the tops of the first adjustment block and the second adjustment block are both clamped with a clamping block, the clamping block is stepped and inclined, and the top of the clamping block is parallel to the top of the scanner housing; the surfaces of the adjustment block and the clamping block are both provided with anti-slip pads.

[0018] By adopting the above technical solution, the grippable range can be enlarged by setting the snap-fit ​​block, and the range that needs to be grasped can be reduced. When some special people use it, they only need to grasp the snap-fit ​​block, thereby avoiding the situation where some people cannot use it due to the position of the adjustment block that cannot be grasped; at the same time, the friction between the device and the hand can be increased by setting the anti-slip pad, thereby further preventing it from falling off.

[0019] The present invention has the following beneficial effects: 1. In order to ensure protection under any circumstances, the present invention will press the adjustment unit with fingers to tighten the anti-slip belt when the equipment is in use. During use, the tightened anti-slip belt is fixed to the staff's hand, thereby preventing the anti-slip belt from slipping in the horizontal direction. After the scan is completed, the anti-slip belt can be loosened by loosening the adjustment unit. This is not only convenient to wear, but also can prevent the hand from slipping during use.

[0020] 2. In order to prevent the scanning lens from being damaged when the device falls out of hand, the present invention wraps the scanning lens with a protective shell when the device is not in use. When scanning is required, the protective shell can be pushed outward by pressing the adjustment unit to wrap the scanning lens to protect the scanning lens from being damaged due to falling. When not in use, wrapping the scanning lens with the protective shell can also reduce dust and other impurities from falling on the scanning lens, thereby avoiding affecting subsequent imaging.

[0021] 3. When the adjustment unit of the present invention is pressed, the protective shell can be folded up, and the imaging of the scanning lens will not be affected after the protective shell is folded up. In addition, the amount of light entering the scanning lens can be controlled by controlling the degree of folding of the protective shell during use, thereby preventing side light from entering the scanner and causing overexposure, thereby avoiding interference with the imaging of the scanner. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the bottom of the overall structure of the present invention; Figure 3 It is an overall longitudinal sectional view of the present invention; Figure 4 For the present invention Figure 3 A partial enlarged view of the middle part; Figure 5 It is an overall transverse cross-sectional view of the present invention; Figure 6 It is a structural schematic diagram of the adjustment unit, protection unit and convergence unit of the present invention; Figure 7 This is a structural schematic diagram of the protection unit of the present invention; Figure 8 It is an exploded view of the protection unit of the present invention; Fig. 9 It is a structural schematic diagram of the beam collecting unit of the present invention.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows: In the figure: 1. scanner housing; 11. scanning lens; 12. support plate; 13. processor frame; 131. positioning block; 132. waist-shaped block; 14. support rod; 15. connecting rod; 2. adjustment unit; 21. first adjustment block; 22. first spring; 23. clamping block; 24. second adjustment block; 3. protection unit; 31. hinge block; 32. crank connecting rod; 321. sliding block; 33. lifting plate; 34. lifting block; 35. protective shell; 36. second spring; 4. focusing unit; 41. fixing block; 42. traction rod; 43. pushing block; 44. traction block; 45. anti-slip belt; 46. limit block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 9 As shown, the present invention is an anti-falling handheld three-dimensional scanner, comprising a scanner housing 1, the inner bottom surface of the scanner housing 1 is symmetrically fixedly connected to two support rods 14, 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, the processor frame 13 is used to protect the processor; the bottom of the support plate 12 is fixedly connected to a plurality of connecting rods 15, the bottom of the connecting rods 15 is fixedly connected to a scanning lens 11; The surface of the scanner housing 1 is symmetrically provided with sliding grooves, and the adjusting units 2 are slidably connected in the sliding grooves, and the adjusting units 2 are respectively fixedly connected with the protecting unit 3 and the focusing unit 4; the focusing unit 4 is fixedly connected with the anti-slipping belt 45, and the anti-slipping belt 45 runs through the top of the scanner housing 1; the adjusting unit 2 is used to adjust the protecting unit 3 and the focusing unit 4, the protecting unit 3 is used to protect the scanning lens 11, and the focusing unit 4 is used to focus the anti-slipping belt 45; The focusing unit 4 includes a fixed block 41 and a pushing block 43, the pushing block 43 is fixedly connected to the adjusting unit 2, and the side of the pushing block 43 away from the adjusting unit 2 is fixedly connected to two pushing rods; a traction rod 42 is hinged between the pushing rods, and both ends of the traction rod 42 are hinged with hinged rods; the top of the fixed block 41 is fixedly connected to the top surface of the scanner housing 1, and the bottom of the fixed block 41 is connected to the traction rod 42 through a hinged rod; the top of the hinged rod on the side of the traction rod 42 away from the fixed block 41 is fixedly connected to a traction block 44, and one side of the traction block 44 is fixedly connected to an anti-slip belt 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, and the traction rod 42 is used to control the movement of the traction block 44.

[0027] In this embodiment, considering that the device is handheld when in use, most of the current users are normal people, and because the technical requirements for use are relatively low, the device can be provided for special people to operate, such as people who are missing some fingers. Since people who are missing fingers usually have lower grip strength and poorer grasping ability than normal people, most of the devices in the prior art are not convenient for special people to use; Considering that in the prior art, the anti-drop belt 45 is usually put on the hand to prevent the hand from falling off, but when in use, it can only ensure protection when it falls vertically. If the hand tilts downward when scanning an object from high to low, the anti-drop belt 45 will slide down obliquely from the horizontal direction of the palm. If the device falls at this time, it will not be able to protect it; When in use, first pass the hand through the anti-slip belt 45, and place the hand on the adjustment unit 2, and the pushing block 43 can be moved by pressing the adjustment unit 2. When the pushing block 43 moves, it will drive the pushing rod to move, and the movement of the pushing rod will drive the traction rod 42 to rotate with the traction rod 42 of the fixed block 41 as the axis, and make the traction rod 42 on the other side drive the traction block 44 to move, when the traction block 44 moves, the anti-slip belt 45 can be pulled into the device, and the anti-slip belt 45 is thereby tightened; after the scanning is completed, the anti-slip belt 45 can be loosened by loosening the adjustment unit 2, so that the device is also very convenient to wear; when special people use it, they may not be able to place the device on a plane at the first time due to unstable grip, which may cause the device to slip out of their hands. The binding of the anti-slip belt 45 to the palm can also assist special people in preventing the device from slipping out of their hands, and avoid the situation of slipping out of their hands. Moreover, when the anti-slip belt 45 is tightened, it can prevent the anti-slip belt 45 from sliding in the horizontal direction due to excessive looseness, which can further avoid the situation of slipping out of their hands.

[0028] Specifically, 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. The surface of the waist-shaped block 132 is provided with a waist-shaped groove. The positioning block 131 is located on the side of the processor frame 13 close to the bundling unit 4, and the waist-shaped block 132 is located on the side close to the protection unit 3. The protection unit 3 includes two hinge blocks 31, which are fixedly connected to both ends of one side of the adjustment unit 2, and hinge holes are opened at the opposite ends of the hinge blocks 31; a crank connecting rod 32 is hinged in the hinge hole; the middle part of the crank connecting rod 32 is hinged to the positioning block 131, and the end of the crank connecting rod 32 away from the hinge block 31 is fixedly connected to a sliding block 321; the side of the sliding block 321 close to the 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 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; the bottoms of the lifting blocks 34 are fixedly connected to protective shells 35, and the protective shells 35 are all sleeved with the scanning lens 11.

[0029] In this embodiment, it is considered that the device may fall out of the hand due to the breakage of the anti-falling belt 45 or the failure to wear the anti-falling belt 45 during use. Since the scanning lens 11 is heavy and faces downward, there is a high probability that the scanning lens 11 will be damaged after falling out of the hand, and the subsequent repair cost is also very expensive. In order to prevent the scanning lens 11 from being damaged when the device is out of hand, the protective shell 35 will wrap the scanning lens 11 when the device is not in use. When scanning is required, the adjustment unit 2 is pressed to push the hinge block 31 to move. When the hinge block 31 moves, it will drive one end of the crank connecting rod 32 to move. Since the middle part of the crank connecting rod 32 is hinged with the positioning block 131, and due to the setting of the waist-shaped block 132, the other end of the crank connecting rod 32 will drive the sliding block 321 to slide in the waist-shaped groove of the waist-shaped block 132. When the hinge block 31 pushes the crank connecting rod 32 into the device, the sliding block 321 slides in the waist-shaped groove of the waist-shaped block 132. When the sliding block 321 moves upward, the other end of the crank connecting rod 32 will drive the sliding block 321 to move upward. When the sliding block 321 moves upward, the lifting plate 33 will also be driven to move, and the lifting block 34 and the protective shell 35 will be driven to move at the same time. If the hand slips out of the hand, the protective shell 35 will be pushed outward by the adjusting unit 2 through the automatic reset force, and the scanning lens 11 will be wrapped to protect the scanning lens 11 from being damaged due to falling. When not in use, the protective shell 35 wraps the scanning lens 11, which can also reduce the dust and other impurities falling on the scanning lens 11, so as to avoid affecting the subsequent imaging. When the adjustment unit 2 is pressed, the protective shell 35 can be folded up. After the protective shell 35 is folded up, it will not affect the imaging of the scanning lens 11. In addition, during use, the degree to which the protective shell 35 is folded can be controlled to control the amount of light entering the scanning lens 11, thereby preventing side light from entering the scanner to cause overexposure and preventing excessive light from interfering with the imaging of the scanner.

[0030] Specifically, 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 both slidably connected to the sliding groove, and the first adjustment block 21 and the second adjustment block 24 are connected to the scanner housing 1 through a first spring 22; the first adjustment block 21 is fixedly connected to the pushing block 43, and the second adjustment block 24 is fixedly connected to the hinge block 31.

[0031] In this embodiment, considering that normal people can use the device normally, it is also necessary to ensure that some special people can use the device normally. For example, people with poor grip due to lack of fingers may fall off the anti-drop belt 45 or fail to accurately control the position of the protective shell 35 due to unstable grip when using the device. When used by normal people, the thumb and the other four fingers are placed on the first adjustment block 21 and the second adjustment block 24 respectively, and the hinge block 31 and the push block 43 are moved by pressing the first adjustment block 21 and the second adjustment block 24. When the hinge block 31 and the push block 43 move, the movement of the protective shell 35 and the tightening of the anti-slip belt 45 can be controlled respectively; In order to ensure that people with poor grip strength or special groups can also operate the device, the elastic force of the first spring 22 only needs to be guaranteed to reset the focusing unit 4 and the protection unit 3, thereby reducing the grip force required to press the first spring 22. When the elastic force of the first spring 22 is small, hand fatigue caused by pressing the first adjustment block 21 and the second adjustment block 24 for a long time can be reduced, which is beneficial for both normal people and special people.

[0032] Specifically, the hinged portion 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 .

[0033] In this embodiment, considering that a person with unstable grip may not be able to fully press the first spring 22 when using the device, the tightening unit 4 may not be able to completely tighten the anti-dropping belt 45. If the device slips out of the hand at this time, it will not be possible to completely ensure that the device will not fall. By making the hinged position of the push rod and the traction rod 42 closer to the fixed block 41, the push rod can make the travel of the end away from the fixed block 41 longer when pushing the traction rod 42, thereby ensuring that when in use, only a small force is required to press the first adjustment block 21 to completely retract the anti-slip belt 45, ensuring that when people with less grip strength and some special groups use it, even if they have poor grip strength, the anti-slip belt 45 can be retracted, thereby reducing the possibility of the device slipping out of their hands.

[0034] Specifically, three limit blocks 46 are fixedly connected to the top of the scanner housing 1, and the limit blocks 46 are arranged as vertices of an isosceles triangle, two limit blocks 46 are located on the side close to the second adjustment block 24, and one limit block 46 is located on the side close to the first adjustment block 21, the inner wall of the limit block 46 is socketed with the anti-slip belt 45, and the limit block 46 is used to fix the position of the anti-slip belt 45.

[0035] Specifically, both ends of the anti-slip belt 45 are fixed on the fixed block 41 , and the part of the anti-slip belt 45 located outside the scanner housing 1 first passes through two limit blocks 46 close to the second adjustment block 24 , and is connected to the limit block 46 on one side close to the first adjustment block 21 .

[0036] In this embodiment, it is considered that the position of the anti-slip belt 45 is not fixed, which may cause inconvenience in wearing, and the anti-slip belt 45 is soft and usually fits together when not in use. Each time the device is used, the anti-slip belt 45 needs to be opened again and the hand needs to be put in. However, for people with only one hand, it is not convenient to put the hand into the anti-slip belt 45 without the assistance of the other hand. Considering that the existing anti-dropping belt 45 will wear out after long-term use, it will be impossible to prevent the scanner from falling off if it breaks during use. Considering that after the device falls off, it will be suspended on the arm or palm through the anti-dropping belt 45 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 lift it up. However, for people with only one hand, you need to put the device on a flat surface before you can pick it up again. However, if it is placed on a flat surface, the device may collide with the ground or wall due to inertia because there is only the traction of the anti-dropping belt 45, which may cause damage to the device. Considering that when special people wear the device, usually no one else will assist in wearing it, one side of the anti-slip belt 45 can be fixed to the top of the scanner housing 1 by setting the limit block 46. When wearing the device, first place the device on a plane or a desktop. Since one side of the anti-slip belt 45 is fixed, you only need to use your fingers to lift the other side of the anti-slip belt 45 so that the fingers support the anti-slip belt 45. At this time, put your hand into the anti-slip belt 45, and then curl your fingers to completely put your hand into the anti-slip belt 45. Even one hand can do this operation, which reduces the steps of wearing the anti-slip belt 45, which not only saves time but also makes it convenient for special people to wear it. If people without fingers wear it, they can use the protruding part of the bone to lift the anti-slip belt 45, and then put the other side of the hand into the anti-slip belt 45 after lifting it. After the hand enters the anti-slip belt 45, the arm supports it, and the protruding part of the bone can be put into the anti-slip belt from the bottom by rotating the hand, thereby completely wearing the device. During the use of the device, the stopper blocks limit the anti-slip belt 45 so that the contact between the anti-slip belt 45 and the hand can be changed from a line to a triangular surface, thereby increasing the contact area. While increasing the contact area, the length of the anti-slip belt 45 does not change, and the anti-slip belt 45 is tightened by the tightening unit 4, so that the device does not have enough length to fall after it is out of the hand, and the height and angle of the device fall can be reduced. At the same time, the increase in the contact area can prevent the anti-slip belt 45 from being pulled due to the device falling and causing strangulation or scratching on the arm; At the same time, when the hand is put into the anti-slip belt 45, the fingers can be passed through the anti-slip belt 45. When the device is out of the hand, the anti-slip belt 45 will be bound between the fingers and the wrist, thereby reducing the range of the device falling off, so that the device is always in close contact with the wrist, and the device can be prevented from hanging when it is out of the hand. When the device falls off, you only need to bend your wrist or rotate your arm to pick up the device. Since the device will always be in close contact with the wrist through the anti-slip belt 45, the palm of the special group can be relaxed when using it, and the force for holding the device can be reduced. At the same time, the force of the palm can enable the special group to press the first adjustment block 21 and the second adjustment block 24 when using it, so as to help adjust the contraction unit 4 and the protection unit 3, and avoid the situation that the special group cannot hold up the device without the assistance of another hand; By changing the winding method of the anti-slip belt 45, the shape of the anti-slip belt 45 can be changed to a butterfly-shaped double-root support, so that the contact area with the hand is increased, and the support of the anti-slip belt 45 is increased. Since the anti-slip belt 45 is fixed by the limit block 46, when one side of the anti-slip belt 45 is broken, the other side can be used for support and prevent the device from falling, reducing the possibility of falling due to wear of the anti-slip belt 45; The present invention takes into account that if the device is designed specifically for special groups of people, the market demand will be small, and it will be difficult for enterprises to produce and sell it, resulting in high production costs. Therefore, when designing it, it is considered that both normal people and special groups can use it. This device can be used by normal people while taking special groups into consideration, avoiding putting the cart before the horse due to designing specifically for special groups of people.

[0037] Specifically, the bottom of the lifting plate 33 is connected to the top of the support plate 12 via a second spring 36 , and two second springs 36 are symmetrically arranged.

[0038] In this embodiment, considering that the lifting plate 33 is reset only by the first spring 22 when being pressed down, when the device falls, it may not be able to be retracted in time due to too small elastic force; When the device falls, the protective shell 35 needs to be extended outward to protect the scanning lens 11. The second spring 36 is set between the lifting plate 33 and the support plate 12. Since the position of the support plate 12 is fixed, the lifting plate 33 can be reset by the second spring 36 after being pulled to push the protective shell 35 to protect the scanning lens 11. The second spring 36 can also be compressed for buffering when the protective shell 35 contacts the ground to prevent excessive hard impact from causing damage to the electronic components inside the device; Specifically, the tops of the first adjustment block 21 and the second adjustment block 24 are both clamped with a clamping block 23, which is stepped and inclined, and the top of the clamping block 23 is parallel to the top of the scanner housing 1; the surfaces of the adjustment block and the clamping block 23 are both provided with anti-slip pads.

[0039] In this embodiment, it is considered that some special people lack thumbs and can only rely on the remaining four fingers and palms to grasp. At the same time, some people have part of their knuckles amputated, which will lead to a decrease in the grasping ability of these people and a smaller grasping range. The scanners in the prior art are usually based on the width standard of the palms of normal people, which will be inconvenient or impossible for special people to use; The positions of the first adjustment block 21 and the second adjustment block 24 are more suitable for use by normal people. When used by special people, the clamping block 23 can be installed on the top of the first adjustment block 21 and the second adjustment block 24 first. The clamping block 23 can increase the graspable range and reduce the range that needs to be grasped. When used by some special people, they can only grasp the clamping block 23, and operate the position of the first adjustment block 21 and the second adjustment block 24 by pressing the clamping block 23, thereby controlling the operation of the convergence unit 4 and the protection unit 3, and avoiding the inability to grasp due to the too low position of the adjustment block, which makes it impossible for some people to use it; at the same time, the friction between the device and the hand can be increased by setting the anti-slip pad, thereby further preventing it from falling off.

[0040] When using, First, in order to prevent the scanning lens 11 from being damaged when the device is out of hand, 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-slip belt 45, the anti-slip belt 45 can be changed from a single support to a double support, thereby increasing the support of the anti-slip belt 45. When the anti-slip belt 45 breaks, it can be supported by the other side to prevent the device from falling, reducing the possibility of falling due to wear of the anti-slip belt 45; When wearing the device, considering that there is usually no one else to assist in wearing the device when special people wear the device, one side of the anti-slip belt 45 can be fixed to the top of the scanner housing 1 by setting the limit block 46. When wearing the device, first place the device on a plane or a desktop. Since one side of the anti-slip belt 45 is fixed, it is only necessary to use the fingers to lift the other side of the anti-slip belt 45 so that the fingers support the anti-slip belt 45. At this time, put the hand into the anti-slip belt 45, and then curl the fingers to completely put the hand into the anti-slip belt 45. Even one hand can perform this operation, which reduces the steps of wearing the anti-slip belt 45, which not only saves time but also makes it convenient for special people to wear the device. If the device is worn by people without fingers, the protruding part of the bone can be used to lift the anti-slip belt 45, and the other side of the hand can be put into the anti-slip belt 45 after lifting. After the hand enters the anti-slip belt 45, the arm supports it, and the protruding part of the bone can be put into the anti-slip belt from the bottom by rotating the hand, thereby completely wearing the device. Since the positions of the first adjustment block 21 and the second adjustment block 24 are more suitable for use by normal people, when special people use it, the clamping block 23 can be first installed on the top of the first adjustment block 21 and the second adjustment block 24. The clamping block 23 can increase the graspable range and reduce the range that needs to be grasped. When some special people use it, they can only grasp the clamping block 23, and operate the position of the first adjustment block 21 and the second adjustment block 24 by pressing the clamping block 23, thereby controlling the operation of the focusing unit 4 and the protection unit 3, and avoiding the situation that the adjustment block is too low to be grasped, thereby causing some people to be unable to use it; at the same time, the friction between the device and the hand can be increased by setting the anti-slip pad, thereby further preventing it from falling off.

[0041] Secondly, when in use, place the hand on the adjustment unit 2, and press the second adjustment block 24 to move the push block 43. When the push block 43 moves, it will drive the push rod to move. The movement of the push rod will drive the traction rod 42 to rotate with the traction rod 42 of the fixed block 41 as the axis, and make the traction rod 42 on the other side drive the traction block 44 to move. When the traction block 44 moves, the anti-slip belt 45 can be pulled into the inside of the device, and the anti-slip belt 45 is thereby tightened; after the scanning is completed, the anti-slip belt 45 can be loosened by loosening the second adjustment block 24, so that the device is also very convenient to wear; when used by special groups of people, the device can be prevented from slipping out of the hand because the anti-slip belt 45 binds the palm; after the anti-slip belt 45 is tightened, the hand of the staff can be fixed, thereby preventing the device from slipping out of the hand, and when the anti-slip belt 45 is tightened, the anti-slip belt 45 can be prevented from sliding in the horizontal direction due to excessive looseness, which can further prevent the device from slipping out of the hand; By bringing the hinged joint of the push rod and the traction rod 42 closer to the fixed block 41, the push rod can have a longer stroke at the end away from the fixed block 41 when pushing the traction rod 42, thereby ensuring that the anti-slip belt 45 can be completely contracted with only a small amount of pressure during use, thereby ensuring that the anti-slip belt 45 will not slip out of the hand when used by people with less grip strength or some special groups.

[0042] Finally, when scanning is performed, the first adjustment block 21 is pressed to push the hinge block 31 to move. When the hinge block 31 moves, one end of the crank connecting rod 32 is driven to move. Since the middle part of the crank connecting rod 32 is hinged with the positioning block 131, and due to the setting 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 groove of the waist-shaped block 132. When the hinge block 31 pushes the crank connecting rod 32 toward the inside of the device, the other end of the crank connecting rod 32 drives the sliding block 321 to move upward. When the sliding block 321 moves upward, the lifting plate 33 is also driven to move, and the lifting block 34 and the protective shell 35 are also driven to move; if the hands slip out of the hands, the first adjusting block 21 will automatically reset the protective shell 35 through the force of the first spring 22 to push the protective shell 35 outwards and wrap the scanning lens 11 to protect the scanning lens 11 from being damaged due to falling; when not in use, the protective shell 35 wraps the scanning lens 11 to reduce dust and other impurities from falling on the scanning lens 11, thereby avoiding affecting subsequent imaging; When the adjustment unit 2 is pressed, the protective shell 35 can be folded up. After the protective shell 35 is folded up, it will not affect the imaging of the scanning lens 11. In addition, during use, the degree to which the protective shell 35 is folded can be controlled to control the amount of light entering the scanning lens 11, thereby preventing side light from entering the scanner to cause overexposure and preventing excessive light from interfering with the imaging of the scanner.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An anti-drop handheld 3D scanner, comprising a scanner housing (1), characterized in that: The inner bottom surface of the scanner housing (1) is symmetrically and fixedly connected to two support rods (14), and 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), and the processor frame (13) is used to protect the processor; the bottom of the support plate (12) is fixedly connected to a plurality of connecting rods (15), and the bottom of the connecting rods (15) is fixedly connected to a scanning lens (11); The surface of the scanner housing (1) is symmetrically provided with sliding grooves, and the sliding grooves are slidably connected with adjustment units (2), and the adjustment units (2) are respectively fixedly connected with a protection unit (3) and a focusing unit (4); the focusing unit (4) is fixedly connected with an anti-slip belt (45), and the anti-slip belt (45) passes through the top of the scanner housing (1); the adjustment unit (2) is used to adjust the protection unit (3) and the focusing unit (4), the protection unit (3) is used to protect the scanning lens (11), and the focusing unit (4) is used to focus the anti-slip belt (45); The beam collecting unit (4) comprises a fixed block (41) and a pushing block (43), wherein the pushing block (43) is fixedly connected to the adjusting unit (2), and the side of the pushing block (43) away from the adjusting unit (2) is fixedly connected to two pushing rods; a traction rod (42) is hinged between the pushing rods, and both ends of the traction rod (42) are hinged to hinge rods; the top of the fixed block (41) is fixedly connected to the top surface of the scanner housing (1), and the bottom of the fixed block (41) is connected to the traction rod (42) through a 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 to a traction block (44), and one side of the traction block (44) is fixedly connected to an anti-slip belt (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, and the traction rod (42) is used to control the movement of the traction block (44).

2. The anti-falling 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), waist-shaped blocks (132) are fixedly connected on both sides of the processor frame (13), and waist-shaped grooves are provided on the surface of the waist-shaped blocks (132). The positioning blocks (131) are located on a side of the processor frame (13) close to the bundle unit (4), and the waist-shaped blocks (132) are located on a side close to the protection unit (3); The protection unit (3) comprises two hinge blocks (31), the hinge blocks (31) are fixedly connected to both ends of one side of the adjustment unit (2), and hinge holes are provided at opposite ends of the hinge blocks (31); a crank connecting rod (32) is hinged in the hinge hole; the middle part of the crank connecting rod (32) is hinged to the positioning block (131), and the end of the crank connecting rod (32) away from the hinge block (31) is fixedly connected to a sliding block (321); the sliding block (321) is close to the hinge block (31); One side of the 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 the processor frame (13) and the waist-shaped block (132), and the bottom of the lifting plate (33) is fixedly connected to a plurality of lifting blocks (34); the bottoms of the lifting blocks (34) are fixedly connected to protective shells (35), and the protective shells (35) are sleeved with the scanning lens (11).

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

4. The anti-falling handheld 3D scanner according to claim 1, characterized in that: The hinged portion 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-falling handheld 3D scanner according to claim 1, characterized in that: Three limit blocks (46) are fixedly connected to the top of the scanner housing (1), and the limit blocks (46) are arranged as vertices of an isosceles triangle, two of the limit blocks (46) are located on a side close to the second adjustment block (24), and one of the limit blocks (46) is located on a side close to the first adjustment block (21), the inner wall of the limit block (46) is sleeved with the anti-slip belt (45), and the limit block (46) is used to fix the position of the anti-slip belt (45).

6. The anti-falling handheld 3D scanner according to claim 5, characterized in that: Both ends of the anti-slip belt (45) are fixed on the fixed block (41), and the portion of the anti-slip belt (45) located outside the scanner housing (1) first passes through two limit blocks (46) close to the second adjustment block (24), and is connected to a limit block (46) on one side close to the first adjustment block (21).

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

8. The anti-falling handheld 3D scanner according to claim 2, characterized in that: The tops of the first adjustment block (21) and the second adjustment block (24) are both clamped with a clamping block (23), the clamping block (23) is stepped and inclined, and the top of the clamping block (23) is parallel to the top of the scanner housing (1); and the surfaces of the adjustment block and the clamping block (23) are both provided with anti-slip pads.

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