Binocular handheld device and focusing assembly

Abstract

The utility model relates to the technical field of imaging equipment, and particularly discloses a binocular handheld device and a focusing assembly, comprising a first focusing wheel and a second focusing wheel which are coaxially arranged and sequentially distributed along the axial direction; the first rotating shaft is arranged on the first focusing wheel, and the first rotating shaft and the first focusing wheel are coaxial; the second rotating shaft is arranged on the second focusing wheel, the second rotating shaft and the second focusing wheel are coaxial, and the second rotating shaft is arranged outside the first rotating shaft in a sleeving mode and can rotate relatively; the first moving part is used for being connected with the first movement, and rotation of the first rotating shaft can be converted into forward and backward movement of the first moving part so as to change the distance from the first movement to the first lens; and the second moving part is used for being connected with a second movement, and rotation of the second rotating shaft can be converted into forward and backward movement of the second moving part so as to change the distance from the second movement to the second lens. By applying the binocular handheld device and the focusing assembly provided by the utility model, the focal length adjustment operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of imaging equipment, and more specifically to a binocular handheld device and a focusing component. Background Art

[0002] Common binocular handheld devices have two lens options: a focus lens and a fixed-focus lens. A focus lens contains a focusing lens that can move back and forth along the optical axis. This lens can be driven electrically or manually, enabling either electric or manual focusing. Electric drive uses a motor to move the focusing lens back and forth, while manual focusing uses an adjustable flange to move the focusing lens back and forth to achieve focus.

[0003] Electric focusing is highly automated and saves time and effort, but the need for a motor complicates the handheld device's structure, occupies too much space, and results in a heavy lens. Manual focusing is simpler than electric focusing and comes in two main configurations: a lens focusing ring and a separate focusing handwheel. However, the lens focusing ring is typically positioned away from the handheld portion, requiring the user to move their hand back and forth when focusing, resulting in a poor user experience. Separate focusing wheels can be configured based on the specific needs of the product, but binocular handheld devices have separate focusing handwheels for the two lenses, which compromises the overall product layout and makes it difficult for both left and right-handed users to operate.

[0004] In summary, how to effectively solve the problem of inconvenient focusing operation of binocular handheld devices is a problem that currently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, an object of the present invention is to provide a binocular handheld device and a focusing assembly thereof, wherein the structural design of the focusing assembly can effectively solve the problem of inconvenient focusing operation of the binocular handheld device.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0007] A focusing assembly, comprising:

[0008] a first focusing wheel, wherein the first focusing wheel is rotatable about an axial direction;

[0009] a second focusing wheel, coaxially arranged with the first focusing wheel and distributed in sequence along the axial direction, the second focusing wheel being rotatable about the axial direction;

[0010] a first rotating shaft, provided on the first focusing wheel, the first rotating shaft being coaxial with the first focusing wheel;

[0011] a second rotating shaft, provided on the second focusing wheel, the second rotating shaft being coaxial with the second focusing wheel, and the second rotating shaft being sleeved outside the first rotating shaft and capable of relative rotation;

[0012] a first movable member, configured to be connected to the first rotating shaft and the first movement, respectively, such that rotation of the first rotating shaft can be converted into axial forward and backward movement of the first movable member, thereby driving the first movement to move forward and backward, thereby changing the distance between the first movement and the first lens;

[0013] The second movable member is used to be connected to the second rotating shaft and the second movement respectively. The rotation of the second rotating shaft can be converted into the forward and backward movement of the second movable member in the axial direction, so as to drive the second movement to move forward and backward and thus change the distance from the second movement to the second lens.

[0014] Optionally, in the above-mentioned focusing assembly, the first rotating shaft and the first moving member are threadedly engaged;

[0015] And / or, the second rotating shaft and the second moving member are threadedly engaged.

[0016] Optionally, the above-mentioned focusing assembly further includes a first connecting member and / or a second connecting member, one end of the first connecting member is arranged on the first movable member, and the other end is arranged on the first movement, and one end of the second connecting member is arranged on the second movable member, and the other end is arranged on the second movement.

[0017] Optionally, in the above-mentioned focusing assembly, the first connecting member includes a first pull rod and a first support arm, one end of the first pull rod is connected to the first movable member, and the other end of the first pull rod is connected to one end of the first support arm, and the other end of the first support arm is connected to the first movement, the first pull rod is parallel to the axial direction of the first rotating shaft, and at least a portion of the first support arm is perpendicular to the axial direction of the first rotating shaft;

[0018] The second connecting member includes a second pull rod and a second support arm, one end of the second pull rod is connected to the second movable member, and the other end is connected to one end of the second support arm, the other end of the second support arm is connected to the second movement, the second pull rod is parallel to the axial direction of the second rotating shaft, and at least part of the second support arm is perpendicular to the axial direction of the second rotating shaft.

[0019] Optionally, in the above-mentioned focusing assembly, the first rotating shaft is passed through the first focusing wheel and the second focusing wheel, the outer peripheral surface of the first rotating shaft is provided with a flange, the front end of the second rotating shaft faces the flange, the tail end of the first rotating shaft is connected to a first blocking member that is against the first focusing wheel, the front end of the first rotating shaft is connected to a second blocking member, the second blocking member is provided with a blocking platform, and the blocking platform is opposite to the front end of the first rotating shaft.

[0020] Optionally, in the above-mentioned focusing assembly, a thrust ball bearing is provided between the front end of the second rotating shaft and the flange.

[0021] Optionally, the above-mentioned focusing assembly further includes an isolation member, and the first focusing wheel and the second focusing wheel are rotatably disposed at the front and rear ends of the isolation member respectively.

[0022] Optionally, in the above-mentioned focusing assembly, the isolation member includes an intermediate plate, one end surface of the intermediate plate is provided with a first protrusion or a first annular groove, and the other end surface of the intermediate plate is provided with a second protrusion or a second annular groove;

[0023] The first focusing wheel is provided with a first limiting groove matched with the first protrusion or a first limiting protrusion matched with the first ring groove;

[0024] The second focusing wheel is provided with a second limiting groove matched with the second protrusion or a second limiting protrusion matched with the second annular groove.

[0025] The focusing assembly provided by the present invention is used by connecting the first moving member and the second moving member to the first movement and the second movement, respectively. When the first lens and the second lens need to be focused, the first focusing wheel is rotated, and the first rotating shaft provided on the first focusing wheel rotates accordingly. The first rotating shaft cooperates with the first moving member to convert the rotation of the first rotating shaft into forward and backward movement of the first moving member. The first moving member drives the first movement forward and backward, and accordingly changes the distance between the first movement and the first lens, thereby achieving independent focal length adjustment of the first lens. Similarly, by rotating the second focusing wheel, the second rotating shaft provided on the second focusing wheel rotates accordingly. The second rotating shaft cooperates with the second moving member to convert the rotation of the second rotating shaft into forward and backward movement of the second moving member. The second moving member drives the second movement forward and backward, and accordingly changes the distance between the second movement and the second lens, thereby achieving independent focal length adjustment of the second lens.

[0026] In this focusing assembly, the rotating axes of the first focusing wheel and the second focusing wheel are coaxial and distributed in sequence along the axial direction. The positions of the two focusing wheels are relatively concentrated, the structure is simple and compact, there is no motion interference, and it is easy for users to operate. In addition, the first focusing wheel and the second focusing wheel drive the corresponding first movement and the second movement to move back and forth. Compared with the conventional driving of the first lens and the second lens, the position of the first focusing wheel and the second focusing wheel can be closer to the handheld part of the device, so that the user does not need to move the holding hand back and forth when holding the device to focus, and the operation of focal length adjustment is more convenient. In addition, by setting the length and shape of the first moving part and the second moving part, the relative position of the first focusing wheel and the first movement and the relative position of the second focusing wheel and the second movement are more flexible, and thus the layout of the first focusing wheel and the second focusing wheel on the binocular handheld device is more flexible.

[0027] In order to achieve the above object, the present invention further provides a handheld device, which includes any one of the above-mentioned focusing components. Since the above-mentioned focusing components have the above-mentioned technical effects, the handheld device including the focusing components should also have corresponding technical effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a structural diagram of a focusing assembly according to a specific embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the exploded structure of a focusing assembly according to a specific embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the cooperation between the focusing assembly, the first lens, and the second lens according to a specific embodiment of the present invention;

[0032] Figure 4 for Figure 3 Schematic diagram of the explosion structure;

[0033] Figure 5 This is a partial cross-sectional schematic diagram of a focusing assembly according to a specific embodiment of the present invention;

[0034] Figure 6 for Figure 5 A magnified schematic diagram of part A;

[0035] Figure 7 This is a structural diagram of a handheld device according to a specific embodiment of the present invention.

[0036] Reference numerals:

[0037] 1-focusing assembly; 2-first lens barrel assembly; 3-second lens barrel assembly; 4-first eyepiece; 5-second eyepiece; 91-first bracket; 92-first linear guide; 93-second bracket; 94-second linear guide; 21-first lens; 22-first lens barrel; 23-first movement; 31-second lens; 32-second lens barrel; 33-second movement;

[0038] 111 - first focusing wheel; 112 - second focusing wheel; 121 - first rotating shaft; 122 - second rotating shaft; 131 - first moving member; 132 - second moving member; 141 - first connecting member; 142 - second connecting member; 1411 - first pull rod; 1412 - first support arm; 1421 - second pull rod; 1422 - second support arm; 151 - first blocking member; 152 - second blocking member; 161 - thrust ball bearing; 171 - isolation member; 181 - first sealing ring; 182 - second sealing ring;

[0039] 1111 - first limiting groove; 1121 - second limiting groove; 1211 - flange; 1412a - main body; 1412b - horizontal plate; 1412c - connecting plate; 1521 - clamping platform; 1711 - middle plate; 1712 - first protrusion; 1713 - second protrusion; 1714 - fixing part. DETAILED DESCRIPTION

[0040] The embodiment of the utility model discloses a binocular handheld device and a focusing assembly, which can conveniently realize the focal length adjustment of a first lens and a second lens.

[0041] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0042] In some embodiments, see Figures 1-6 The focusing assembly provided by the present invention includes a first focusing wheel 111 , a second focusing wheel 112 , a first rotating shaft 121 , a second rotating shaft 122 , a first moving member 131 and a second moving member 132 .

[0043] The first focusing wheel 111 is rotatable about the axis; the second focusing wheel 112 is coaxially arranged with the first focusing wheel 111 and is sequentially distributed along the axis, and the second focusing wheel 112 is rotatable about the axis. It is understood that the front-to-back position relationship between the first focusing wheel 111 and the second focusing wheel 112 in the axial direction is not limited here. Figure 1The location of the first focusing wheel 111 behind the second focusing wheel 112 is merely an example of one layout arrangement; in other embodiments, the first focusing wheel 111 may also be located in front of the second focusing wheel 112. The first focusing wheel 111 and the second focusing wheel 112 are axially rotatable. When the focusing assembly is assembled in a binocular handheld device, both the first focusing wheel 111 and the second focusing wheel 112 are rotatably mounted. When the first focusing wheel 111 is rotated alone, the second focusing wheel 112 can rotate independently of the first focusing wheel 111. Correspondingly, when the second focusing wheel 112 is rotated alone, the first focusing wheel 111 can rotate independently of the second focusing wheel 112. The first focusing wheel 111 is used to form a group with the first lens 21 and the first movement 23, and the second focusing wheel 112 is used to form a group with the second lens 31 and the second movement 33.

[0044] The first rotating shaft 121 is provided on the first focusing wheel 111 and is coaxial with the first focusing wheel 111. The second rotating shaft 122 is provided on the second focusing wheel 112 and is coaxial with the second focusing wheel 112. The second rotating shaft 122 is sleeved outside the first rotating shaft 121 and can rotate relative to it. It is understood that the first rotating shaft 121 and the first focusing wheel 111 can be two separate components connected by conventional fixing means, or they can be an integrated structure. Correspondingly, the second rotating shaft 122 and the second focusing wheel 112 can be two separate components connected by conventional fixing means, or they can be an integrated structure.

[0045] The first moving member 131 is used to be connected to the first movement 23. The rotation of the first rotating shaft 121 can be converted into the back and forth movement of the first moving member 131 to change the distance between the first movement 23 and the first lens 21. The first moving member 131 is connected to the first movement 23, and the two can be directly connected or indirectly connected through other components. The first focusing wheel 111 is connected to the first movement 23 through the first rotating shaft 121 and the first moving member 131. When the first focusing wheel 111 rotates, the first rotating shaft 121 rotates synchronously therewith. The rotation of the first rotating shaft 121 is converted into the linear movement of the first moving member 131, and the first moving member 131 thereby drives the first movement 23 to move back and forth. Through the cooperation of the first rotating shaft 121 and the first movable member 131, not only can the movement mode be converted from rotation to linear movement, but the force of the first focusing wheel 111 can also be transmitted. By setting the length and shape of the first movable member 131, the relative position layout of the first focusing wheel 111 and the first movement 23 is more flexible, and thus the layout of the first focusing wheel 111 on the handheld device is more flexible.

[0046] The second movable member 132 is connected to the second movement 33. The rotation of the second rotating shaft 122 is converted into the back and forth movement of the second movable member 132, thereby changing the distance between the second movement 33 and the second lens 31. The second movable member 132 is connected to the second movement 33 directly or indirectly through other components. The second focusing wheel 112 functions in the same manner as the first focusing wheel 111 and will not be further described here.

[0047] When using the focusing assembly provided by the present invention, the first movable member 131 and the second movable member 132 are connected to the first movement 23 and the second movement 33 respectively. When the first lens 21 and the second lens 31 need to be focused respectively, the first focusing wheel 111 is rotated, and the first rotating shaft 121 set on the first focusing wheel 111 rotates accordingly. The first rotating shaft 121 cooperates with the first movable member 131 to convert the rotation of the first rotating shaft 121 into the forward and backward movement of the first movable member 131. The first movable member 131 drives the first movement 23 to move forward and backward, and accordingly changes the distance between the first movement 23 and the first lens 21, thereby realizing the independent focal length adjustment of the first lens 21. Similarly, by rotating the second focusing wheel 112, the second rotating shaft 122 set on the second focusing wheel 112 rotates accordingly, and the second rotating shaft 122 cooperates with the second movable member 132 to convert the rotation of the second rotating shaft 122 into the forward and backward movement of the second movable member 132. The second movable member 132 drives the second movement 33 to move forward and backward, and accordingly changes the distance between the second movement 33 and the second lens 31, thereby realizing the separate focal length adjustment of the second lens 31.

[0048] In this focusing assembly, the rotation axes of the first focusing wheel 111 and the second focusing wheel 112 are coaxial and distributed in sequence along the axial direction. The structure is simple and compact, and no motion interference will occur, which is convenient for user operation. In addition, the first focusing wheel 111 and the second focusing wheel 112 drive the corresponding first movement 23 and the second movement 33 to move back and forth. Compared with the conventional driving of the first lens 21 and the second lens 31, the position of the first focusing wheel 111 and the second focusing wheel 112 can be closer to the handheld part of the device, so that the user does not need to move the holding hand back and forth when holding the device and focusing, and the operation of focal length adjustment is more convenient. In addition, by setting the length and shape of the first moving member 131 and the second moving member 132, the relative position of the first focusing wheel 111 and the first movement 23 and the phase position layout of the second focusing wheel 112 and the second movement 33 are more flexible, and thus the layout of the first focusing wheel 111 and the second focusing wheel 112 on the binocular handheld device is more flexible.

[0049] In some embodiments, the first rotating shaft 121 and the first movable member 131 are threadedly matched. The rotation of the first rotating shaft 121 is converted into the linear movement of the first movable member 131 by threaded matching. It is understandable that the first rotating shaft 121 can rotate around the axial direction, and its linear movement along the axial direction is limited, so that the rotation of the first rotating shaft 121 can be converted into the axial movement of the first movable member 131 by threaded matching. The use of threaded matching has high adjustment accuracy, easy assembly, and a simple and compact structure. Specifically, the first rotating shaft 121 is a screw, and the screw is provided with an external thread. The first movable member 131 is a nut threadedly connected to the screw. When the screw rotates, the nut can move linearly along the screw.

[0050] In other embodiments, the first rotating shaft 121 is a rotating rod, and the first moving member 131 is a moving ring sleeved on the outside of the rotating rod. One of the inner wall of the moving ring and the outer wall of the rotating rod is provided with a chute, and the other is provided with a guide protrusion, and the guide protrusion is inserted into the chute. This embodiment differs from the above-mentioned threaded cooperation between the first rotating shaft 121 and the first moving member 131 in that, in this embodiment, a chute is provided on one of the mating surfaces of the rotating rod and the moving ring, and a guide protrusion is provided on the other. The path of the chute is set so that when the rotating rod rotates, the guide protrusion drives the moving ring to move linearly, thereby driving the first movement 23 to move linearly. The use of the chute and the guide protrusion in combination has a simple structure and is easy to process.

[0051] In some embodiments, the second rotating shaft 122 and the second moving member 132 are threadedly engaged. Alternatively, the second rotating shaft 122 and the second moving member 132 can also be engaged via a slide groove and a guide protrusion. The specific engagement method can be referred to the first rotating shaft 121 and the first moving member 131 in the above embodiment, and will not be repeated here.

[0052] In some embodiments, the focusing assembly 1 further includes a first connecting member 141, one end of which is disposed on the first movable member 131 and the other end of which is disposed on the first movement 23. Specifically, the first movable member 131 and the first movement 23 are connected via the first connecting member 141. The shape and size of the first connecting member 141 are determined based on the position of the first movement 23 within the first lens barrel 22 and the position of the first focusing wheel 111. The provision of the first connecting member 141 further enhances the flexibility of the layout of the first focusing wheel 111.

[0053] In some embodiments, the focusing assembly 1 further includes a second connecting member 142, one end of which is disposed on the second movable member 132 and the other end of which is disposed on the second movement 33. The second connecting member 142 also enhances the flexibility of the layout of the second focusing wheel 112. Specifically, the structure of the second connecting member 142 can be the same as or different from that of the first connecting member 141, depending on the layout of the first movement 23 and the second movement 33 and the internal spaces of the first lens barrel 22 and the second lens barrel 32.

[0054] In some embodiments, the first connecting member 141 includes a first rod 1411 and a first arm 1412. One end of the first rod 1411 is connected to the first movable member 131, and the other end is connected to one end of the first arm 1412. The other end of the first arm 1412 is connected to the first movement 23. The first rod 1411 is parallel to the axial direction of the first rotating shaft 121, and at least a portion of the first arm 1412 is perpendicular to the axial direction of the first rotating shaft 121. It is understood that the first rod 1411 and the first arm 1412 can be separate components connected by conventional fixing means, or they can be an integrated structure. The first rod 1411 is parallel to the axial direction of the first rotating shaft 121, and at least a portion of the first arm 1412 is perpendicular to the axial direction of the first rotating shaft 121. This allows the first movement 23 and the first focusing wheel 111 to be offset in both the axial direction and the direction perpendicular to the axial direction, making the spatial layout of the first focusing wheel 111 more flexible and less restricted. Specifically, the first focusing wheel 111 and the second focusing wheel 112 are disposed near the first eyepiece 4 and the second eyepiece 5 of the binocular handheld device. The first focusing wheel 111 is connected to the first movement 23 via the first pull rod 1411 and the first support arm 1412, and the second focusing wheel 112 is connected to the second movement 33 via the second pull rod 1421 and the second support arm 1422. As configured above, the first focusing wheel 111 and the second focusing wheel 112 are located near the gripping position of the handheld device, making operation more convenient, reducing the weight of the lens end of the handheld device, and providing a better user experience when holding the handheld device.

[0055] In some embodiments, the second connecting member 142 may also adopt the same configuration as the first connecting member 141. Specifically, the second connecting member 142 includes a second pull rod 1421 and a second support arm 1422. One end of the second pull rod 1421 is connected to the second movable member 132, and the other end is connected to one end of the second support arm 1422. The other end of the second support arm 1422 is connected to the second movement 33. The second pull rod 1421 is parallel to the axial direction of the second rotating shaft 122, and at least a portion of the second support arm 1422 is perpendicular to the axial direction of the second rotating shaft 122. Specifically, the length of the second pull rod 1421 can be the same as or different from the length of the first pull rod 1411, and the length of the second support arm 1422 can be the same as or different from the length of the first support arm 1412.

[0056] In some embodiments, see Figure 1The first arm 1412 includes a main body 1412a and a transverse plate 1412b extending perpendicularly to the axial direction from the main body 1412a. The main body 1412a is used to connect with the first movement 23. When the first movement 23 is installed on the first bracket 91, the main body 1412a is connected to the first bracket 91. Specifically, one end of the main body 1412a contacts the end face of the first bracket 91 for positioning, and the main body 1412a is provided with a screw hole and is locked with the first bracket 91 by a screw. The main body 1412a is specifically in the shape of a right-angled triangle, and the screw hole is opened at the end face corresponding to the hypotenuse of the right triangle, and the end face corresponding to the right angle side contacts the first bracket 91. As set up above, while achieving reliable connection, the volume is reduced, thereby reducing space occupancy. Furthermore, a connecting plate 1412c is provided between the transverse plate 1412b and the main body 1412a. The connecting plate 1412c can play a reinforcing role to prevent the transverse plate 1412b from deforming. It is understood that the first arm 1412 can be an integrated structure, that is, the horizontal plate 1412b, the main body 1412a and the connecting plate 1412c can be integrally formed. The second arm 1422 can be configured similarly to the first arm 1412, and will not be described in detail here.

[0057] In some embodiments, see Figure 6The first rotating shaft 121 is inserted into the first focusing wheel 111 and the second focusing wheel 112, and the second rotating shaft 122 is sleeved on the outside of the first rotating shaft 121. The outer circumferential surface of the first rotating shaft 121 is provided with a flange 1211, and the front end of the second rotating shaft 122 faces the flange 1211. The tail end of the first rotating shaft 121 is connected to the first blocking member 151 that is against the first focusing wheel 111, and the front end of the first rotating shaft 121 is connected to the second blocking member 152. The second blocking member 152 is provided with a blocking platform 1521. The blocking platform 1521 is opposite to the front end of the first rotating shaft 121 and is used to resist the shell of the handheld device to limit the axial displacement of the first rotating shaft 121. Combined with the flange 1211 provided on the first rotating shaft 121, it can cooperate with the second rotating shaft 122 to limit the axial direction of the second rotating shaft 122, so that the axial directions of the first rotating shaft 121 and the second rotating shaft 122 are both limited, and then the axial directions of the first focusing wheel 111 and the second focusing wheel 112 are correspondingly limited, and can only rotate around the axial direction but cannot move in a straight line. During installation, the first rotating shaft 121 is inserted into the second rotating shaft 122, and the first focusing wheel 111 and the second focusing wheel 112 are respectively sleeved on the outside of the first rotating shaft 121 and the second rotating shaft 122 and fixedly connected. Then, the first blocking member 151 is connected to the rear end of the first rotating shaft 121 and abuts against the first focusing wheel 111 to limit the axial position. Then, the entire body is placed in a suitable position within the housing, and the second blocking member 152 is connected to the front end of the first rotating shaft 121. Then, part of the housing is clamped between the clamping platform 1521 and the front end of the first rotating shaft 121, and the second rotating shaft 122 abuts against the flange 1211, so that the axial directions of the first rotating shaft 121 and the second rotating shaft 122 are both reliably limited. As described above, the axial limitation of the first rotating shaft 121 and the second rotating shaft 122 can be achieved, and the axial limitation of the first focusing wheel 111 and the second focusing wheel 112 can be achieved. At the same time, the structure is simple and compact, and assembly is convenient.

[0058] Specifically, the first retaining member 151 can be a nut, which is threadedly connected to the tail end of the first rotating shaft 121, with the end face of the nut pressed tightly against the first focusing wheel 111. The end face of the first focusing wheel 111 can be provided with a countersunk hole, and the nut is disposed within the countersunk hole. The end face of the nut does not extend beyond the end face of the first focusing wheel 111, making the binocular handheld device more neat and beautiful. The second retaining member 152 can be threadedly connected to the first rotating shaft 121. The threaded connection is convenient for assembly and disassembly, and the screwing length of the second retaining member 152 is adjustable, which can better adapt to the housing and ensure reliable positioning.

[0059] In some embodiments, a thrust ball bearing 161 is provided between the front end of the second rotating shaft 122 and the flange 1211. The provision of the thrust ball bearing 161 avoids direct contact friction between the second rotating shaft 122 and the flange 1211, reducing frictional resistance when the first rotating shaft 121 rotates independently with the first focusing wheel 111 and when the second rotating shaft 122 rotates independently with the second focusing wheel 112. This facilitates focus adjustment for the user and avoids frictional wear. In other embodiments, the thrust ball bearing 161 may be omitted. For example, a smooth, wear-resistant coating may be provided on the contact surfaces of the second rotating shaft 122 and the flange 1211, thereby also reducing friction.

[0060] In some embodiments, the focusing assembly 1 provided in the present application further includes an isolator 171, and the first focusing wheel 111 and the second focusing wheel 112 are rotatably disposed at the front and rear ends of the isolator 171, respectively. By providing the isolator 171 between the first focusing wheel 111 and the second focusing wheel 112, the two are separated so that the first focusing wheel 111 and the second focusing wheel 112 can rotate independently without affecting each other. At the same time, the isolator 171 can also integrate the first focusing wheel 111 and the second focusing wheel 112 into a whole, thereby facilitating the rotatable installation of the first focusing wheel 111 and the second focusing wheel 112 within the housing. Specifically, the isolator 171 is provided with a fixing portion 1714, such as a bolt hole, for fixing to the housing, thereby fixing to the housing to achieve installation of the focusing assembly 1 and the housing. The isolator 171 specifically includes a protrusion protruding from the outer circumference of the first focusing wheel 111 and the second focusing wheel 112, and the fixing portion 1714, such as a bolt hole, is provided on the protrusion.

[0061] In some embodiments, the isolation member 171 includes an intermediate plate 1711, one end surface of which is provided with a first protrusion 1712 or a first annular groove, and the other end surface of the intermediate plate 1711 is provided with a second protrusion 1713 or a second annular groove. The first focusing wheel 111 is provided with a first limiting groove 1111 that cooperates with the first protrusion 1712, or a first limiting protrusion that cooperates with the first annular groove; the second focusing wheel 112 is provided with a second limiting groove 1121 that cooperates with the second protrusion 1713, or a second limiting protrusion that cooperates with the second annular groove. The first and second focusing wheels 111 and 112 are arranged sequentially along the axial direction. When the first focusing wheel 111 is located behind the second focusing wheel 112, the rear end surface of the intermediate plate 1711 is provided with the first protrusion 1712 or the first annular groove, and the front end surface of the intermediate plate 1711 is provided with the second protrusion 1713 or the second annular groove. When the positions of the first focusing wheel 111 and the second focusing wheel 112 are interchanged, the front end surface of the corresponding intermediate plate 1711 is provided with a first protrusion 1712 or a first annular groove, and the rear end surface of the intermediate plate 1711 is provided with a second protrusion 1713 or a second annular groove.

[0062] In one embodiment, a first protrusion 1712 is provided on one end face of the intermediate plate 1711, and the first focusing wheel 111 is provided with a first limiting groove 1111 that cooperates with the first protrusion 1712. The first protrusion 1712 is inserted into the first limiting groove 1111. The first protrusion 1712 and the first limiting groove 1111 are both annular in shape to play a limiting and guiding role, thereby facilitating the installation of the first focusing wheel 111 and the isolation member 171, and guiding when the first focusing wheel 111 rotates.

[0063] In another embodiment, a first annular groove is provided on one end face of the intermediate plate 1711, and the first focusing wheel 111 is provided with a first limiting protrusion that cooperates with the first annular groove. The first limiting protrusion is inserted into the first annular groove to play a limiting and guiding role, thereby facilitating the installation of the first focusing wheel 111 and the isolation member 171, and guiding when the first focusing wheel 111 rotates.

[0064] The manner in which the spacer 171 cooperates with the second focus wheel 112 is similar to that described above and will not be further described here. It is understood that both ends of the intermediate plate 1711 may be provided with protrusions (the first protrusion 1712 and the second protrusion 1713) or annular grooves (the first annular groove and the second annular groove), or one may be provided with a protrusion and the other with an annular groove (the first protrusion 1712 and the second annular groove, or the first annular groove and the second protrusion 1713).

[0065] Specifically, a first sealing ring 181 is provided between the first protrusion 1712 and the first limiting groove 1111 , and a second sealing ring 182 is provided between the second protrusion 1713 and the second limiting groove 1121 , so as to achieve sealing between the first focusing wheel 111 and the second focusing wheel 112 .

[0066] Based on the focusing assembly provided in the above embodiments, the present invention further provides a binocular handheld device, which includes any one of the focusing assemblies in the above embodiments. Since the binocular handheld device adopts the focusing assembly in the above embodiments, the beneficial effects of the binocular handheld device can be referred to the above embodiments.

[0067] In some embodiments, see Figure 3 、 Figure 4 and Figure 7The binocular handheld device includes a first lens barrel assembly 2 and a second lens barrel assembly 3, respectively, corresponding to the binoculars. A focusing assembly 1 is disposed between the first lens barrel assembly 2 and the second lens barrel assembly 3. The first lens barrel assembly 2 includes a first lens 21, a first lens barrel 22, and a first movement 23 disposed within the first lens barrel 22. The first movement 23 is capable of moving back and forth along the optical axis of the first lens 21. The second lens barrel assembly 3 includes a second lens 31, a second lens barrel 32, and a second movement 33 disposed within the second lens barrel 32. The second movement 33 is capable of moving back and forth along the optical axis of the second lens 31. The optical axes of the first lens 21 and the second lens 31 are parallel. The first movement 23 and the second movement 33 are respectively configured to perform image detection. Specifically, they are configured to process light entering through the lenses to generate image data and transmit it to a display for display, allowing the user to observe the image through the eyepieces of the handheld device. The specific structure and operating principle of the first movement 23 and the second movement 33 are similar to those of conventional handheld devices and will not be further described here. The first movement 23 is capable of moving forward and backward along the optical axis of the first lens 21, and the second movement 33 is capable of moving forward and backward along the optical axis of the second lens 31. For ease of explanation, in the following embodiments, the direction in which the movement approaches the corresponding lens is referred to as forward, and the reverse direction is referred to as backward. Unlike conventional movement fixedly mounted within the housing of a handheld device, the movement in this application is capable of moving forward and backward within the housing along the optical axis of the lens, thereby changing the distance between the lens and the corresponding movement, achieving focal length adjustment and achieving clear imaging.

[0068] Since the focal length adjustment in this application no longer relies on the forward and backward movement of the focusing lenses in the first lens 21 and the second lens 31, the lenses of the first lens 21 and the second lens 31 can both be fixedly mounted. The types of the first lens 21 and the second lens 31 are not specifically limited here. Both can be dual-light lenses, such as the first lens 21 and the second lens 31 that can achieve dual-light fusion, including but not limited to infrared lenses and low-light lenses, such as a combination of infrared lenses and starlight night vision lenses. If needed, both can also use the same type of lens. If both are infrared lenses, then the focal length of each can be adjusted separately to meet different usage requirements.

[0069] In some embodiments, to facilitate the connection between the focusing assembly and the first movement 23, the binocular handheld device equipped with the focusing assembly is provided with a first bracket 91 and a first linear guide 92 in cooperation with the first movement 23. The first movement 23 is provided on the first bracket 91; the first linear guide 92 includes a guide rail and a slider slidably provided on the guide rail, one of the guide rail and the slider is connected to the first bracket 91, and the other is used to connect to the housing of the double-sided handheld device. It is understandable that the other of the guide rail and the slider can be directly fixed to the housing, or fixed to the first lens 21 connected to the housing, that is, indirectly connected to the housing, and the specific arrangement is corresponding to the layout inside the housing. The first bracket 91 can play a role in installing and protecting the first movement 23. Its specific structure can be set as needed and is not specifically limited here. It can be understood that the guide rail of the first linear guide rail 92 is parallel to the axial direction of the first movement 23. By setting the first linear guide rail 92, the linear movement of the first movement 23 can be limited and guided to ensure its coaxiality with the first lens 21 and reduce the resistance of the first movement 23 to the movement relative to the first lens 21.

[0070] In some embodiments, a binocular handheld device equipped with this focusing assembly is provided with a second bracket 93 and a second linear guide 94, which cooperate with the first movement 23. The second movement 33 is mounted on the second bracket 93; the second linear guide 94 comprises a guide rail and a slider slidably mounted on the guide rail. One of the guide rail and the slider of the second linear guide 94 is connected to the second bracket 93, while the other is connected to the housing of the dual-view handheld device. The second linear guide 94 limits and guides the linear movement of the second movement 33, ensuring its coaxiality with the second lens 31.

[0071] In some embodiments, see Figures 1-4 The binocular handheld device has a first eyepiece 4 at one end of the first lens barrel 22, a second eyepiece 5 at one end of the second lens barrel 32, and a first focusing wheel 111 and a second focusing wheel 112 located between the first lens barrel 22 and the second lens barrel 32, close to the first eyepiece 4 and the second eyepiece 5. The first and second focusing wheels 111 and 112 are located close to the grip of the handheld device, making operation more convenient and reducing the weight of the lens end of the handheld device, providing a better user experience when holding the handheld device and adjusting the focus.

[0072] In some embodiments, one of the first lens 21 and the second lens 31 is a visible light lens, and the other is an infrared lens.

[0073] The following describes the assembly method of the binocular handheld device provided by the present application using a specific embodiment.

[0074] In this embodiment, during assembly, the following steps can be followed:

[0075] Step 1: The first rotating shaft 121 and the first moving member 131 , and the second rotating shaft 122 and the second moving member 132 cooperate with each other and are coaxially assembled through the thrust ball bearing 161 .

[0076] Step 2: The second pull rod 1421 is fixed to the second movable member 132 by screws. Similarly, the first pull rod 1411 is fixed to the first movable member 131 by screws to transmit the pulling (pushing) force.

[0077] Step 3: Insert the second focusing wheel 112 into the above-mentioned assembly and fix the second focusing wheel 112 to the second rotating shaft 122 by screws; then insert the isolation member 171 and the first focusing wheel 111 in turn, and fix the isolation member 171 to the housing by screws. One end of the first focusing wheel 111 is locked and fixed to the first rotating shaft 121 by the first limit member.

[0078] Step 4: The other end of the first rotating shaft 121 is threadedly engaged with the second limiting member to limit the forward and backward movement of the above-assembled components.

[0079] Step 5: The first pull rod 1411 and the first support arm 1412 are fastened together by screws, and the second pull rod 1421 and the second support arm 1422 are fastened together by screws to transmit the pulling / pushing force.

[0080] Step 6: The first movement 23 is fixed to the first bracket 91 by screws. At the same time, the first bracket 91 is fixed to one side of the first linear guide rail 92. The other side of the first linear guide rail 92 is fixed by a linear guide rail bracket. The linear guide rail bracket is locked to the first lens 21 or the housing. The second movement 33, the second bracket 93, and the second linear guide rail 94 are fixed in the same way.

[0081] Step 7: The first bracket 91 is fixedly connected to the first arm 1412 by screws; the second bracket 93 is fixedly connected to the second arm 1422 by screws.

[0082] When adjusting focus, when the user rotates the first focusing wheel 111, the first rotating shaft 121 rotates accordingly, which is converted into linear movement of the first moving member 131. This, through the first pull rod 1411, the first arm 1412, and the first bracket 91, drives the first movement 23 to move back and forth, thereby adjusting the focus of the first lens 21. When the user rotates the second focusing wheel 112, the second rotating shaft 122 rotates accordingly, which is converted into linear movement of the second moving member 132. The second moving member 132 drives the second pull rod 1421 to move back and forth. The second pull rod 1421 drives the second movement 33 to move back and forth through the second arm 1422 and the second bracket 93, thereby adjusting the focus of the second lens 31.

[0083] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0084] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A focusing assembly, characterized in that: include: A first focusing wheel (111), the first focusing wheel (111) being rotatable about an axial direction; A second focusing wheel (112) is coaxially arranged with the first focusing wheel (111) and is sequentially distributed along the axial direction, and the second focusing wheel (112) is capable of rotating about the axial direction; A first rotating shaft (121) is provided on the first focusing wheel (111), the first rotating shaft (121) and the first focusing wheel (111) being coaxial; a second rotating shaft (122) provided on the second focusing wheel (112), the second rotating shaft (122) being coaxial with the second focusing wheel (112), and the second rotating shaft (122) being sleeved outside the first rotating shaft (121) and capable of relative rotation; A first moving member (131) is used to be connected to the first rotating shaft (121) and the first movement (23) respectively, and the rotation of the first rotating shaft (121) can be converted into the forward and backward movement of the first moving member (131) in the axial direction, so as to drive the first movement (23) to move forward and backward, thereby changing the distance between the first movement (23) and the first lens (21); The second movable member (132) is used to be connected to the second rotating shaft (122) and the second movement (33) respectively, and the rotation of the second rotating shaft (122) can be converted into the forward and backward movement of the second movable member (132) in the axial direction, so as to drive the second movement (33) to move forward and backward, thereby changing the distance between the second movement (33) and the second lens (31).

2. The focusing assembly according to claim 1, wherein: The first rotating shaft (121) and the first moving member (131) are threadedly engaged; And / or, the second rotating shaft (122) and the second moving member (132) are threadedly engaged.

3. The focusing assembly according to claim 1, wherein: The focusing assembly (1) further comprises a first connecting member (141) and / or a second connecting member (142), wherein one end of the first connecting member (141) is arranged on the first movable member (131), and the other end is arranged on the first movement (23); and one end of the second connecting member (142) is arranged on the second movable member (132), and the other end is arranged on the second movement (33).

4. The focusing assembly according to claim 3, characterized in that: The first connecting member (141) includes a first pull rod (1411) and a first support arm (1412), one end of the first pull rod (1411) is connected to the first movable member (131), and the other end is connected to one end of the first support arm (1412), and the other end of the first support arm (1412) is connected to the first movement (23), the first pull rod (1411) is parallel to the axial direction of the first rotating shaft (121), and at least a part of the first support arm (1412) is perpendicular to the axial direction of the first rotating shaft (121).

5. The focusing assembly according to claim 3, characterized in that: The second connecting member (142) includes a second pull rod (1421) and a second support arm (1422), one end of the second pull rod (1421) is connected to the second movable member (132), and the other end is connected to one end of the second support arm (1422), and the other end of the second support arm (1422) is connected to the second movement (33), the second pull rod (1421) is parallel to the axial direction of the second rotating shaft (122), and at least part of the second support arm (1422) is perpendicular to the axial direction of the second rotating shaft (122).

6. The focusing assembly according to claim 1, wherein: The first rotating shaft (121) is passed through the first focusing wheel (111) and the second focusing wheel (112); a flange (1211) is provided on the outer peripheral surface of the first rotating shaft (121); the front end of the second rotating shaft (122) faces the flange (1211); the tail end of the first rotating shaft (121) is connected to a first blocking member (151) that abuts against the first focusing wheel (111); the front end of the first rotating shaft (121) is connected to a second blocking member (152); the second blocking member (152) is provided with a blocking platform (1521); and the blocking platform (1521) is opposite to the front end of the first rotating shaft (121).

7. The focusing assembly according to claim 6, wherein: A thrust ball bearing (161) is provided between the front end of the second rotating shaft (122) and the flange (1211).

8. The focusing assembly according to any one of claims 1 to 7, characterized in that: It also includes an isolation member (171), and the first focusing wheel (111) and the second focusing wheel (112) are rotatably arranged at the front and rear ends of the isolation member (171).

9. The focusing assembly according to claim 8, characterized in that: The isolating member (171) comprises an intermediate plate body (1711), one end surface of the intermediate plate body (1711) is provided with a first protrusion (1712) or a first annular groove, and the other end surface of the intermediate plate body (1711) is provided with a second protrusion (1713) or a second annular groove; The first focusing wheel (111) is provided with a first limiting groove (1111) cooperating with the first protrusion (1712) or a first limiting protrusion cooperating with the first annular groove; The second focusing wheel (112) is provided with a second limiting groove (1121) that cooperates with the second protrusion (1713) or a second limiting protrusion that cooperates with the second annular groove.

10. A binocular handheld device, characterized in that: Comprising the focusing assembly according to any one of claims 1 to 9.

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