Sighting telescope with centrally-mounted focusing device

Abstract

The invention discloses a sighting telescope with a middle focusing device. The sighting telescope comprises a middle frame shell, a detection assembly and the focusing device arranged in the middle of the middle frame shell. The focusing device comprises a focusing piece and a connecting guide rod; one end of the connecting guide rod is movably connected with the focusing piece, and the other end of the connecting guide rod is fixedly connected with the detection assembly. According to the technical scheme, the stability of the sighting telescope is improved; and the distance between the user and the focusing device is shortened, so that the user can complete focusing without effort, and the focusing efficiency and the user experience are improved.

Description

Technical Field

[0001] The invention relates to the technical field of infrared imaging, and in particular to a sight with a central focusing device. Background Art

[0002] A scope is a device used to help users accurately aim at a target to improve shooting accuracy and efficiency. By magnifying the target image, the scope enables the user to accurately aim at the target at a longer distance. In improving shooting accuracy and efficiency, the scope's stability during use and the ease of operation also have a great impact on shooting accuracy and efficiency, in addition to the performance of the device's optical system and shooting system.

[0003] Existing sights, such as patent CN105588474A, disclose a sight with a novel focusing mechanism, which includes a mirror tube, a steering lens assembly and a focusing barrel are arranged in the mirror tube, a focusing ring is coaxially sleeved outside the mirror tube, and a lifting curved groove is arranged on the outer wall of the focusing barrel; a guide pin is arranged at the same time, and the focusing barrel, the focusing ring and the lens assembly are connected by the guide pin, and then the focusing of the sight can be completed by rotating the focusing ring. The mirror tube in the prior art is a long cylindrical structure, and its objective lens end and the eyepiece end are arranged at both ends of the mirror tube, resulting in a long distance between the objective lens end and the eyepiece end, and because the focusing mechanism is arranged near the front end of the mirror tube, the front end of the sight is heavy, which increases the difficulty of maintaining the sight stably, thereby making it difficult to aim; in addition, because its focusing mechanism is far away from the eyepiece end, when using it, the user needs to stretch his hand long enough to operate the focusing ring of the objective lens, which affects the focusing efficiency, and also affects the stability of the user's center of gravity, so that the accuracy and shooting efficiency of shooting are also affected. Summary of the invention

[0004] The present invention aims to provide a sight with a central focusing device to improve the stability and focusing efficiency of the sight, thereby improving the user experience.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A sight with a central focusing device comprises a middle frame shell, a detection assembly, and a focusing device arranged in the middle of the middle frame shell; the focusing device comprises a focusing piece and a connecting guide rod; one end of the connecting guide rod is movably connected to the focusing piece, and the other end of the connecting guide rod is fixedly connected to the detection assembly.

[0007] Preferably, the detection assembly is disposed in the middle frame shell; the detection assembly includes a connecting bracket; and the connecting guide rod is fixedly connected to the connecting bracket.

[0008] Preferably, the focusing device further comprises a focusing knob, and the focusing knob is connected to the focusing member.

[0009] Preferably, the focusing member comprises a connecting portion and a guiding portion, the bottom surface of the guiding portion is provided with a guiding portion; the connecting portion is fixedly connected to the adjusting knob, and the guiding portion is slidably connected to the connecting guide rod via the guiding portion.

[0010] Preferably, the connecting guide rod comprises a guide rod head and a guide rod tail, the guide rod tail is fixedly connected to the connecting bracket; the guide rod head is slidably connected to the guide member.

[0011] Preferably, the focusing member is a curved cylinder, the guide member is a curved groove, and the guide rod head cooperates with the curved groove.

[0012] Preferably, a sealing ring and a pressing ring are sleeved on the connecting portion, and the sealing ring is arranged above the pressing ring.

[0013] Preferably, a focusing mounting base for accommodating the focusing device is provided on the middle frame shell, and the focusing mounting base includes a base ring, a base support portion and a positioning member, the base ring is arranged around the base support portion, and the positioning member is arranged at the center of the base support portion.

[0014] Preferably, a first connecting hole is provided on the connecting bracket, and a second connecting hole is provided in the base supporting portion; the tail of the guide rod can pass through the first connecting hole and the second connecting hole.

[0015] Preferably, the focusing device also includes a knob fixing assembly, which includes a fixed connecting member, a third connecting hole and a fourth connecting hole, the third connecting hole is arranged in the focusing knob, the fourth connecting hole is arranged in the connecting part, and the fixed connecting member can pass through the third connecting hole and the fourth connecting hole.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1) The aiming scope has a focusing device disposed in the middle of the aiming scope, so that the weight of the aiming scope is relatively dispersed, thereby increasing the stability of the aiming scope; at the same time, since the distance between the user and the focusing device is shortened, the user can complete the focusing without exerting any effort, and since the distance is relatively close, the user can keep the arm stable when focusing, thereby avoiding shaking during focusing, thereby improving the focusing efficiency and user experience;

[0018] 2) Selecting a detection component that is light in weight and small in size effectively reduces the weight of the sight and makes the installation of the detection component more convenient; and the present invention performs focusing by moving the detector component, thereby avoiding the movement of the objective lens component, making focusing more convenient; and also making the appearance of the lens barrel more concise and beautiful;

[0019] 3) The curved cylinder made of impact-resistant material is used as the focusing part. At the same time, with the precise size of the pressure ring, the focusing device has excellent impact resistance and waterproof functions;

[0020] 4) The connecting guide rod is selected as the impact-resistant material, and it is precisely matched with the curved groove of the curved tube in the impact direction, so that the sight will not be out of focus under the launch impact of 1200G and 0.4ms. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is an exploded view of the central focusing device of the sight described in this application;

[0022] Figure 2 A cross-sectional view of the center focusing device of the sight described in the present application;

[0023] Figure 3 A shape diagram of the guide member described in this application;

[0024] Figure 4 A three-dimensional diagram of the connecting guide rod for this application. 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] Embodiment 1:

[0027] This embodiment provides a sight with a central focusing device, such as Figure 1-2 As shown, it includes a focusing device, a middle frame shell 3, a detection component 2, an objective lens 4 and an eyepiece, and the middle frame shell 3 is a cylindrical structure; the middle frame shell 3 is used to install the focusing device, the detection component 2, the objective lens 4 and the eyepiece.

[0028] In this embodiment, Figure 1 For example, the end of the middle frame shell 3 close to the target object is defined as the front end, the end close to the user is defined as the rear end, the two ends of the length direction of the middle frame shell 3 are defined as the front end and the rear end, the directions perpendicular to the length direction of the middle frame shell 3 on the horizontal plane are defined as the left side and the right side, and the directions perpendicular to the length direction of the middle frame shell 3 in the height direction are defined as the top and the bottom.

[0029] In different use environments and target distances, the focusing device is used to accurately adjust the focal length of the sighting scope to ensure that the user can clearly see the target object. In this embodiment, the focusing device is arranged in the middle of the middle frame shell 3 and is located at the top of the middle frame shell 3; the middle frame shell 3 is provided with a focusing mounting seat 30 corresponding to the focusing device, and the focusing mounting seat 30 is also arranged at the top in the middle of the middle frame shell 3, so that the focusing device can be placed in the focusing mounting seat 30, and the focusing mounting seat 30 is connected to the inner cavity of the middle frame shell 3.

[0030] The objective lens 4 is disposed at the front end of the middle frame housing 3, and is used to collect and focus light from the target object to form an image. The eyepiece is disposed at the rear end of the middle frame housing 3, so that the user can observe the target object through the eyepiece.

[0031] The detection assembly 2 is disposed inside the middle frame housing 3 and close to one end of the objective lens 4 . Specifically, the detection assembly 2 is disposed between the objective lens 4 and the focusing device.

[0032] Furthermore, the focusing device comprises a focusing member 10, a connecting rod 11 and a focusing knob 12, and both ends of the connecting rod 11 are connected to the focusing member 10 and the detection assembly 2 respectively. Figure 1-2 As shown. The detection assembly 2 includes a connecting bracket 20. The connecting bracket 20 is arranged at one end of the detection assembly 2 close to the focusing device, and is connected to the connecting bracket 20 through the connecting guide rod 11, so that the detector assembly 2 is connected to the focusing device. Specifically, the external force is transmitted to the connecting guide rod 11 in the focusing device through the focusing knob 12, and then the movement of the connecting guide rod 11 drives the detection assembly 2 to move back and forth in the middle frame shell 3, thereby achieving the purpose of focusing.

[0033] The connecting guide rod 11 is arranged in the focusing mounting seat 30. Figure 4 As shown, it comprises a guide rod head 110 and a guide rod tail 111 , wherein the guide rod tail 111 is fixedly connected to the connecting bracket 20 , and the guide rod head 110 is slidably connected to the focusing member 10 .

[0034] The movement of the connecting guide rod 11 is controlled by the focusing member 10, thereby controlling the moving distance of the detection assembly 2. The focusing member 10 is arranged in the focusing mounting seat 30 and can rotate in the focusing mounting seat 30; it includes a connecting portion 101 and a guiding portion 102, wherein the connecting portion 101 is arranged above the focusing member 10 and is used to connect with the focusing knob 12; the guiding portion 102 is arranged below the focusing member 10, and a guiding member 103 is provided on the bottom surface of the guiding portion 102 for connecting with the connecting guide rod 11. The guiding member 103 is slidably connected with the guide rod head 110, and the shape of the guide rod head 110 matches the shape of the guiding member 103; the distance between the guide rod head 110 and the center point of the focusing member 10 is controlled by designing the shape of the guiding member 103, so as to control the movement of the connecting guide rod 11, thereby achieving the purpose of controlling the moving distance of the detection assembly 2. In specific implementation, the connecting portion 101 and the guiding portion 102 can be of an integral design or a detachable design; the guiding portion 102 can be a plate-like structure or a cylindrical structure, and the guiding member 103 can be a groove structure or a protrusion structure.

[0035] The focus knob 12 is fixedly connected to the connection part 101; specifically, the focus knob 12 is sleeved on the connection part 101. In addition, an anti-slip structure is provided on the periphery of the focus knob 12, such as a plurality of fine teeth are provided on the outer surface of the focus knob 12 to increase the friction between the user's finger and the focus knob 1, thereby making focusing more convenient.

[0036] This embodiment designs the shape of the guide member 103 to precisely control the movement of the connecting guide rod 11, thereby controlling the movement of the detection assembly 2. When focusing is required, the user can rotate the focusing member 10 relative to the middle frame housing 3 by turning the focusing knob 12; as the focusing member 10 rotates, the guide portion 102 provided on the bottom surface of the focusing member 10 also rotates synchronously, and under the guidance of the guide member 103 at the bottom of the guide portion 102, the guide rod head 110 of the connecting guide rod 11 will be displaced as the curve of the contact portion with the guide member 103 changes, so that the connecting guide rod 11 moves synchronously, and the detection assembly 2 moves with the movement of the connecting guide rod 11, thereby completing the focusing of the sight.

[0037] Embodiment 2:

[0038] This embodiment is different from Embodiment 1 in that Figure 1 and 2As shown, in order to ensure the accuracy and stability of the installation of the focusing device, the focusing mounting base 30 has a base ring 31, a base support portion 32 and a positioning member 33. The base ring 31 is arranged on the base support portion 32 to form a base mounting cavity with an open end; the positioning member 33 is arranged at the center position of the base support portion 32 to position the focusing device, so that the installation of the focusing device is both quick and accurate.

[0039] In addition, the connecting bracket 20 is further provided with a first connecting hole 201, and the bottom of the base support portion 32 is provided with a second connecting hole 34, which is provided at one end close to the connecting bracket 20 and corresponds to the first connecting hole 201. During assembly, the first connecting hole 201 is extended under the base support portion 32 and aligned with the second connecting hole 34, and then the guide rod tail 111 of the connecting guide rod 11 is extended into the first connecting hole 201 and the second connecting hole 34, and then the connecting guide rod 11 is fixed, so that the focusing device is fixedly connected with the middle frame shell 3 and the detector assembly 2.

[0040] At the same time, impact-resistant material is selected to prepare the connecting guide rod 11, and the curved groove is used as the guide part 103, so that the connecting guide rod 11 can precisely match the curved groove in the impact direction. Through this arrangement, the displacement of the detector assembly 2 in the impact direction is within the tolerance range of the imaging surface of the detector assembly 2. Therefore, under the impact, the object information on the imaging surface of the sight has no deviation or is within the deviation range, so that the human eye always has a clear perception, and the sight of this structure will not be out of focus under the launch impact of 1200G and 0.4ms.

[0041] When the guide member 103 is selected as a curved groove, the curved groove can completely accommodate the guide rod head 110. Figure 2 The shape of the guide member 103 is as shown. Figure 3 As shown, the guide portion 102 takes the center of the focusing member 10 as the center of the circle, and the guide member 103 provided on the guide portion 102 is an arc structure with a continuously changing diameter, and each arc of the guide member 103 takes the center point of the focusing member 10 as the center of the circle. When the focusing member 10 rotates, as the shape of the guide member 103 changes, the position of the connecting guide rod 11 also changes, thereby driving the detector assembly 2 to move to achieve the purpose of focusing. Figure 3As shown, the initial distance between the connecting guide rod 11 and the center of the focusing member 10 in the sight is 10 mm. When the focusing member 10 rotates 105° clockwise from the initial distance position, the curve on the guide member 103 approaches the center of the focusing member 10, so that the distance between the connecting guide rod 11 and the center of the circle changes from 10 mm to 8 mm, thereby causing the detector assembly 2 to move 2 mm toward the eyepiece end, thereby reducing the focal length of the sight by 2 mm; when the focusing member 10 rotates 52.5° counterclockwise from the initial distance position, the curve on the guide member 103 moves away from the center of the focusing member 10, thereby causing the distance between the connecting guide rod 11 and the center of the circle changes from 10 mm to 11 mm, thereby causing the detector assembly 2 to move 1 mm toward the objective lens end, thereby increasing the focal length of the sight by 1 mm.

[0042] Embodiment 3:

[0043] This embodiment is different from Embodiment 1 or 2 in that, Figure 1 and 2 As shown, the focusing device is further provided with a sealing ring 13 and a pressing ring 14, and the pressing ring 14 and the sealing ring 13 are arranged at the connection between the focusing member 10 and the focusing knob 12 to improve the sealing of the focusing device, thereby improving the waterproof performance of the sight. Specifically, the connecting portion 101 and the guiding portion 102 of the focusing member 10 have different sizes, and the cross-sectional dimension of the connecting portion 101 is smaller than the cross-sectional dimension of the guiding portion 102, so that the focusing member 1 is a boss structure as a whole, and the pressing ring 14 and the sealing ring 13 are sequentially sleeved on the connecting portion 101, so that the bottom of the pressing ring 14 is against the top of the guiding portion 102, and the top of the sealing ring 13 is against the bottom of the focusing knob 12, thereby reducing the gap between the focusing knob 12 and the focusing member 10 at the connection.

[0044] Furthermore, if Figure 1 As shown, the focusing device is further provided with a knob fixing assembly, which includes a fixing connecting member 15, a third connecting hole 16 and a fourth connecting hole 17. The third connecting hole 16 is provided on the focusing knob 12, the fourth connecting hole 17 is provided on the connecting portion 101 of the focusing member 10, and the fixing connecting member 15 passes through the third connecting hole 16 and the fourth connecting hole 17 so that the focusing knob 12 and the focusing member 10 are fixedly connected. The focusing device includes at least two sets of the knob fixing assemblies.

[0045] Embodiment 4:

[0046] This embodiment is different from Embodiment 1, 2 or 3 in that, Figure 1 and 2As shown, the focusing device is further provided with a button bracket assembly 18 and a power button 19, and the focusing member 10 and the focusing knob 12 are both designed as cylindrical structures for mounting the button bracket assembly 18 and the power button 19. Correspondingly, the connecting portion 101 and the guide portion 102 of the focusing member 10 are also cylindrical structures, and the cylindrical structure of the guide portion 102 needs to have a certain thickness so that the guide member 103 can be mounted on the bottom of the guide portion 102.

[0047] The button bracket assembly 18 is disposed in the focus member 10; the focus knob 12 is also a cylindrical structure, and the power button 19 is disposed in the focus knob 12. At this time, the focus member 10 further includes a connecting guide pin 104, the fourth connecting hole 17 is disposed at the top of the connecting guide pin 104, and a guide pin groove is disposed at the bottom of the connecting guide pin 104, so that the connecting guide pin 104 can be fixedly plugged into the connecting portion 101.

[0048] By adjusting the length of the connecting guide pin 104 , the installation space of the button bracket assembly 18 can be adjusted.

[0049] By designing the focusing member 10 as a cylindrical structure, not only the weight of the sight is reduced, but also there is no need to open additional holes on the middle frame shell 3 for installing the power button 19 and the button bracket assembly 18, which indirectly improves the waterproof performance of the sight.

[0050] It should be noted that the technical features in the above-mentioned embodiments 1 to 4 can be combined in any way, and the combined technical solutions all belong to the protection scope of the present application. In this article, terms such as "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or equipment. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or equipment including the elements.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sight with a central focusing device, characterized in that: It includes a middle frame shell, a detection assembly, and a focusing device arranged in the middle of the middle frame shell; the focusing device includes a focusing piece and a connecting guide rod; one end of the connecting guide rod is movably connected to the focusing piece, and the other end of the connecting guide rod is fixedly connected to the detection assembly.

2. The sight according to claim 1, characterized in that The detection assembly is arranged in the middle frame shell; the detection assembly includes a connecting bracket; the connecting guide rod is fixedly connected to the connecting bracket.

3. The sight according to claim 1, characterized in that: The focusing device also includes a focusing knob, and the focusing knob is connected to the focusing member.

4. The sight according to claim 3, characterized in that: The focusing member comprises a connecting portion and a guiding portion, wherein the bottom surface of the guiding portion is provided with a guiding portion; the connecting portion is fixedly connected to the adjusting knob, and the guiding portion is slidably connected to the connecting guide rod via the guiding portion.

5. The sight according to claim 4, characterized in that The connecting guide rod comprises a guide rod head and a guide rod tail, wherein the guide rod tail is fixedly connected to the connecting bracket; and the guide rod head is slidably connected to the guide member.

6. The sight according to claim 4, characterized in that: The focusing member is a curved cylinder, the guiding member is a curved groove, and the guide rod head is matched with the curved groove.

7. The sight according to claim 4, characterized in that A sealing ring and a pressing ring are sleeved on the connecting portion, and the sealing ring is arranged above the pressing ring.

8. The sight according to any one of claims 2 to 7, characterized in that: The middle frame shell is provided with a focus mounting base for accommodating the focus device, and the focus mounting base includes a base ring, a base support portion and a positioning member, the base ring is arranged around the base support portion, and the positioning member is arranged at the center of the base support portion.

9. The sight according to any one of claims 5 to 7, characterized in that: The connecting bracket is provided with a first connecting hole, and the base supporting portion is provided with a second connecting hole; the tail of the guide rod can pass through the first connecting hole and the second connecting hole.

10. The sight according to claim 9, characterized in that The focusing device also includes a knob fixing assembly, which includes a fixed connecting piece, a third connecting hole and a fourth connecting hole. The third connecting hole is arranged in the focusing knob, the fourth connecting hole is arranged in the connecting part, and the fixed connecting piece can pass through the third connecting hole and the fourth connecting hole.

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