Telescopic supporting device of binocular navigator

Abstract

The utility model provides a telescopic supporting device of a binocular navigator. A telescopic inner sleeve is movably arranged in a supporting outer sleeve in a sleeved mode. The locking sleeve is fixedly arranged at the upper end of the supporting outer sleeve; the external sleeve and the limiting sleeve are arranged at the two ends of the telescopic inner sleeve respectively. When the telescopic inner sleeve moves upwards to reach the top, the upper end of the limiting sleeve abuts against the lower end of the locking sleeve. When the telescopic inner sleeve moves downwards to reach the bottom, the lower end of the external sleeve abuts against the upper end of the locking sleeve. A locking mechanism is arranged on the locking sleeve and used for achieving mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve. After the telescopic inner sleeve is sleeved with the supporting outer sleeve, mutual locking and separation of the telescopic inner sleeve and the supporting outer sleeve can be achieved through the locking sleeve, and therefore the overall telescopic function of the device is achieved; and the limiting sleeve is matched to prevent excessive separation in the stretching and retracting process. On the basis, the device has the advantages of being beneficial to operation, convenient to transport and the like.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment, and to a telescopic support device, and more particularly to a telescopic support device applied to a binocular navigation device. Background Technology

[0002] As the name suggests, a binocular navigation system is equipped with two cameras, one on the left and one on the right, used to simultaneously acquire image and / or video data of a specific area. Binocular navigation systems are widely used in the medical field, such as in dental implant surgery. By utilizing the parallax of the two cameras to calculate 3D image information and construct a 3D model of the surgical area, the system guides the implant handpiece in real time according to the ideal implantation plan. This technical solution optimizes the structure of the support device for the binocular navigation system specifically for dental implant surgery applications.

[0003] Before performing dental implant surgery, necessary surgical equipment needs to be configured, and a binocular navigation system is one of them. The human oral cavity is small and deep. To ensure that the binocular navigation system can effectively acquire image and / or video data of the oral cavity, the patient's oral cavity must be within the ideal depth of field of the system. This requires ensuring that the binocular navigation system and the patient's oral cavity are in a specific relative position. Therefore, preoperative equipment configuration is of great importance.

[0004] Existing binocular navigation devices are structurally completely independent of other devices. During the setup process, the distance and angle between the device and the patient need to be repeatedly adjusted, which is not conducive to operation and transportation and is inconvenient for clinical use. There is an urgent need for the industry to propose a better solution. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a telescopic support device for a binocular navigation device, which, while ensuring support for the binocular navigation device, facilitates the adjustment of the distance and angle between the binocular navigation device and the patient through a telescopic structure, and has the advantages of being easy to operate and convenient to transport.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] A telescopic support device for a binocular navigation system, comprising:

[0008] The support outer sleeve and the telescopic inner sleeve are cylindrical structures, and the telescopic inner sleeve is movably sleeved inside the support outer sleeve.

[0009] A locking sleeve is fixedly disposed at the upper end of the supporting outer sleeve;

[0010] An outer sleeve and a limiting sleeve are provided. The outer sleeve is fixedly installed at the upper end of the telescopic inner sleeve, and the limiting sleeve is fixedly installed at the lower end of the telescopic inner sleeve. The outer diameter of the limiting sleeve is larger than the outer diameter of the telescopic inner sleeve and smaller than the inner diameter of the supporting outer sleeve. The binocular navigator is installed on the outer sleeve through a connecting structure.

[0011] When the telescopic inner sleeve moves upward to the top, the upper end of the limiting sleeve abuts against the lower end of the locking sleeve; when the telescopic inner sleeve moves downward to the bottom, the lower end of the outer sleeve abuts against the upper end of the locking sleeve; the locking sleeve is provided with a locking mechanism, which passes through the locking sleeve and the supporting outer sleeve and cooperates with the telescopic inner sleeve to realize the mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve.

[0012] Compared with existing technologies, the advantages of this technical solution are as follows: the outer sleeve provides basic support for the binocular navigation device; after the telescopic inner sleeve is fitted inside the outer support sleeve, the locking sleeve enables mutual locking and separation, thus achieving the overall telescopic function of the device; and the limiting sleeve prevents excessive separation during telescopic movement. Based on the above, this device facilitates the adjustment of the relative position between the binocular navigation device and the patient, and has advantages such as ease of operation and convenient transportation.

[0013] Furthermore, the locking sleeve includes a locking outer sleeve and a locking inner sleeve. The locking outer sleeve is fixedly sleeved outside the locking inner sleeve. An outer locking window is provided on the locking outer sleeve, and an inner locking window is provided on the locking inner sleeve. The outer locking window and the inner locking window overlap.

[0014] A locking protrusion is movably disposed within the outer locking window and the inner locking window. The locking protrusion is driven by an external force to cooperate with the telescopic inner sleeve, thereby realizing the mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve.

[0015] The beneficial effects of adopting the above scheme are: locking protrusions are provided on the locking outer sleeve and the locking inner sleeve. By controlling the locking protrusions to apply external force to the telescopic inner sleeve or not to apply external force, the mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve can be achieved. This makes it easier to adjust the distance and angle between the binocular navigation device and the patient during clinical use, so that the binocular navigation device is in the optimal position.

[0016] Furthermore, the locking outer sleeve is provided with two bolt support ears, which are respectively located on both sides of the outer locking window. A drive handle is hinged between the two bolt support ears, and the locking protrusion is located between the drive handle and the outer locking window.

[0017] The drive handle includes an integrally formed eccentric rotating wheel and a handle lever arm. A fixing bolt is passed through the eccentric rotating wheel, and two bolt support ears are respectively fixed at both ends of the fixing bolt. The outer side wall of the eccentric rotating wheel abuts against the locking protrusion.

[0018] When the handle lever arm drives the distal side of the eccentric rotating wheel to abut against the locking protrusion, the supporting outer sleeve and the telescopic inner sleeve are locked together; when the handle lever arm drives the distal side of the eccentric rotating wheel to abut against the locking protrusion, the supporting outer sleeve and the telescopic inner sleeve are separated.

[0019] A limiting wing is provided on each side of the locking protrusion. The limiting wing abuts against the two sides of the outer locking window. The locking protrusion passes through the outer locking window and the inner locking window and abuts against the telescopic inner sleeve.

[0020] The beneficial effects of the above scheme are as follows: Based on the drive handle composed of the eccentric rotating wheel and the handle lever arm, the eccentric rotating wheel can be driven to rotate around the fixing bolt as the central axis by turning the handle lever arm. The distal or proximal side of the eccentric rotating wheel is controlled to abut against the locking protrusion, thereby controlling the depth of the locking protrusion into the outer locking window and the inner locking window, and thus controlling the telescopic inner sleeve to lock or separate from the supporting outer sleeve.

[0021] Furthermore, an annular limiting platform is provided on the inner side of the locking outer sleeve, and an upper limiting protrusion and a lower limiting protrusion are provided on the locking inner sleeve. The upper limiting protrusion is located at the upper end of the locking inner sleeve, and the lower limiting protrusion is located at the lower end of the locking inner sleeve.

[0022] The locking inner sleeve has an elastic side opening, which extends along the length of the locking inner sleeve.

[0023] The upper limit protrusion abuts against the upper end of the locking outer sleeve, and the lower limit protrusion abuts against the annular limiting platform inside the locking outer sleeve.

[0024] The beneficial effects of adopting the above scheme are as follows: the inner locking sleeve itself is a cylindrical structure, and an elastic side opening is made on the inner locking sleeve, so that the inner locking sleeve has a certain elastic deformation space, which makes it easy to assemble the inner locking sleeve onto the outer locking sleeve. The upper limit protrusion abuts against the upper end of the outer locking sleeve, and the lower limit protrusion abuts against the annular limiting platform inside the outer locking sleeve. This prevents relative displacement between the two components with high stress during use, namely the outer locking sleeve and the inner locking sleeve, and ensures the stability and reliability of the device structure.

[0025] Furthermore, the locking outer sleeve is made of stainless steel, and the locking inner sleeve is made of plastic.

[0026] The advantages of adopting the above scheme are: using a stainless steel structure as the locking outer sleeve can effectively ensure the strength of the device; while using a plastic structure as the locking inner sleeve prevents the telescopic inner sleeve and the locking inner sleeve from directly contacting each other during relative movement, thus preventing irreversible wear.

[0027] Furthermore, the limiting sleeve has an elastic side opening that extends along the length of the limiting sleeve.

[0028] The beneficial effects of adopting the above scheme are: the limiting sleeve itself is a cylindrical structure, and the limiting sleeve has an elastic side opening, so that the limiting sleeve has a certain elastic deformation space, which makes it easy to assemble the limiting sleeve at the lower end of the telescopic inner sleeve.

[0029] Furthermore, the telescopic inner sleeve is provided with a snap-fit ​​groove, which is circumferentially located below the telescopic inner sleeve;

[0030] The upper edge of the telescopic inner sleeve extends toward the central axis of the limiting sleeve to form a snap-fit ​​protrusion, which is arranged along the circumference of the limiting sleeve.

[0031] When the limiting sleeve is fixedly installed on the telescopic inner sleeve, the snap-fit ​​protrusion on the limiting sleeve is fitted into the snap-fit ​​groove on the telescopic inner sleeve.

[0032] The beneficial effects of adopting the above scheme are: to prevent relative displacement between the limiting sleeve and the telescopic inner sleeve during use, thus ensuring the stability and reliability of the device structure.

[0033] Furthermore, the locking sleeve has a threaded through hole, and a mounting bolt is provided in the threaded through hole of the locking sleeve, the mounting bolt abutting against the telescopic inner sleeve.

[0034] The beneficial effects of adopting the above solution are: by using the mounting bolts to abut against the telescopic inner sleeve to generate a certain frictional force, it is possible to prevent the telescopic inner sleeve from pulling other equipment such as the binocular navigation device off due to gravity if it is accidentally loosened during operation, thus effectively avoiding damage to the operator and equipment.

[0035] Furthermore, the supporting outer sleeve, the telescopic inner sleeve, the locking sleeve, and the outer connecting sleeve are metal structures, while the limiting sleeve is a plastic structure.

[0036] The advantages of adopting the above scheme are: during the control of the extension and retraction of this device, the limiting sleeve may abut against the locking sleeve. Using a plastic structure as the limiting sleeve can prevent irreversible wear of this device during use; while using a metal structure as the supporting outer sleeve, the telescopic inner sleeve, the locking sleeve and the outer connecting sleeve can effectively ensure the strength of this device.

[0037] Furthermore, the upper end of the telescopic inner sleeve is provided with an external threaded connection part, and the lower end of the outer sleeve is provided with an internal threaded connection part. The telescopic inner sleeve and the outer sleeve are fixedly connected to form an integral structure through the threaded engagement of the external threaded connection part and the internal threaded connection part.

[0038] The advantages of adopting the above scheme are: by extending the telescopic structure through a simple structure, an external sleeve is set on the basis of the telescopic structure, which facilitates the installation and fixing of the binocular navigation device. Attached Figure Description

[0039] Figure 1 This is an overall schematic diagram of the telescopic support device for the binocular navigation system of this utility model.

[0040] Figure 2 This is an exploded view of the telescopic support device for the binocular navigation system of this utility model.

[0041] Figure 3 This is a schematic diagram of the locking sleeve of the telescopic support device for the binocular navigation instrument of this utility model.

[0042] Figure 4 This is an exploded view of the locking sleeve of the telescopic support device for the binocular navigation system of this utility model.

[0043] Figure 5 This is a schematic diagram showing the fit of the limiting sleeve of the telescopic support device for the binocular navigation instrument of this utility model.

[0044] The components represented by each number in the diagram are listed below:

[0045] Support sleeve 1, telescopic inner sleeve 2, locking sleeve 3, outer sleeve 4, limiting sleeve 5;

[0046] Snap-fit ​​groove 201;

[0047] Locking outer sleeve 301, locking inner sleeve 302, outer locking window 303, inner locking window 304, locking protrusion 305, bolt support ear 306, drive handle 307, eccentric rotating wheel 308, handle lever arm 309, limiting side wing 310, upper limit protrusion 311, lower limit protrusion 312, inner sleeve elastic side opening 313, threaded through hole 314;

[0048] The limiting cylinder has an elastic side opening 501 and a snap-fit ​​protrusion 502. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0050] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," and "right," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. When a component is referred to as being "fixed to" or "set on" another element, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intervening component. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0052] A binocular navigation system is equipped with two cameras, one on the left and one on the right, for simultaneously acquiring image and / or video data of a specific area. Binocular navigation systems are widely used in the medical field, such as in dental implant surgery. By utilizing the parallax of the two cameras to calculate 3D image information and construct a 3D model of the surgical area, the system guides the implant handpiece in real time according to the ideal implantation plan. This technical solution optimizes the structure of the support device for the binocular navigation system specifically for dental implant surgery applications.

[0053] Before performing dental implant surgery, necessary surgical equipment needs to be configured, and a binocular navigation system is one of them. The human oral cavity is small and deep. To ensure that the binocular navigation system can effectively acquire image and / or video data of the oral cavity, the patient's oral cavity must be within the ideal depth of field of the system. This requires ensuring that the binocular navigation system and the patient's oral cavity are in a specific relative position. Therefore, preoperative equipment configuration is of great importance.

[0054] Existing binocular navigation devices are structurally completely independent of other devices. During the setup process, the distance and angle between the device and the patient need to be repeatedly adjusted, which is not conducive to operation and transportation and is inconvenient for clinical use. There is an urgent need for the industry to propose a better solution.

[0055] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, in order to solve the above problems, this utility model provides a telescopic support device for a binocular navigator, including a support outer sleeve 1, a telescopic inner sleeve 2, a locking sleeve 3, an outer sleeve 4, and a limiting sleeve 5.

[0056] The supporting outer sleeve 1 and the telescopic inner sleeve 2 are cylindrical structures, with the telescopic inner sleeve 2 movably fitted inside the supporting outer sleeve 1. This technical solution primarily achieves the telescopic function through the movable connection between the telescopic inner sleeve 2 and the supporting outer sleeve 1.

[0057] The locking sleeve 3 is fixedly installed at the upper end of the supporting outer sleeve 1. After the supporting outer sleeve 1 and the telescopic inner sleeve 2 have extended and retracted to their respective positions, the locking sleeve 3 is used to lock and fix the supporting outer sleeve 1 and the telescopic inner sleeve 2.

[0058] The outer sleeve 4 and the limiting sleeve 5 are respectively disposed at both ends of the telescopic inner sleeve 2. The outer sleeve 4 is used to extend and connect the binocular navigation device, and the limiting sleeve 5 is used to prevent excessive displacement of the supporting outer sleeve 1 and the telescopic inner sleeve 2 during telescopic movement. The outer sleeve 4 is fixedly disposed at the upper end of the telescopic inner sleeve 2, and the limiting sleeve 5 is fixedly disposed at the lower end of the telescopic inner sleeve 2. The outer diameter of the limiting sleeve 5 is larger than the outer diameter of the telescopic inner sleeve 2 and smaller than the inner diameter of the supporting outer sleeve 1. The binocular navigation device is disposed on the outer sleeve 4 through a connecting structure.

[0059] When the telescopic inner sleeve 2 moves upward to the top, the upper end of the limiting sleeve 5 abuts against the lower end of the locking sleeve 3; when the telescopic inner sleeve 2 moves downward to the bottom, the lower end of the outer sleeve 4 abuts against the upper end of the locking sleeve 3; the locking sleeve 3 is provided with a locking mechanism, which passes through the locking sleeve 3 and the supporting outer sleeve 1 and cooperates with the telescopic inner sleeve 2, thereby realizing the mutual locking and separation between the supporting outer sleeve 1 and the telescopic inner sleeve 2.

[0060] Based on the above structure, the outer sleeve 4 provides the basic function of supporting the binocular navigation device; after the telescopic inner sleeve 2 is fitted inside the supporting outer sleeve 1, the locking sleeve 3 can achieve mutual locking and separation between the two, thereby realizing the overall telescopic function of the device; with the help of the limiting sleeve 5, excessive separation during telescopic movement can be prevented. Based on the above, this device can easily adjust the relative position between the binocular navigation device and the patient, and has advantages such as being easy to operate and convenient to transport.

[0061] like Figure 3 and Figure 4 As shown, preferably, the locking sleeve 3 includes a locking outer sleeve 301 and a locking inner sleeve 302. The locking outer sleeve 301 is fixedly sleeved outside the locking inner sleeve 302. The locking outer sleeve 301 has an outer locking window 303, and the locking inner sleeve 302 has an inner locking window 304. The outer locking window 303 and the inner locking window 304 overlap. In this technical solution, the outer locking window 303 and the inner locking window 304 support the locking protrusion 305, allowing the locking protrusion 305 to move inward or outward in the direction of the outer locking window 303 and the inner locking window 304.

[0062] A locking protrusion 305 is movably disposed within the outer locking window 303 and the inner locking window 304. The locking protrusion 305 is driven by an external force to cooperate with the telescopic inner sleeve 2, thereby realizing the mutual locking and separation between the supporting outer sleeve 1 and the telescopic inner sleeve 2: When the locking protrusion 305 moves through the outer locking window 303 and the inner locking window 304 towards the central axis of the telescopic inner sleeve 2, the locking protrusion 305 will abut against the telescopic inner sleeve 2, and the supporting outer sleeve 1 and the telescopic inner sleeve 2 will lock each other; when the locking protrusion 305 moves through the outer locking window 303 and the inner locking window 304 in the opposite direction towards the central axis of the telescopic inner sleeve 2, the locking protrusion 305 will move away from the telescopic inner sleeve 2, and the supporting outer sleeve 1 and the telescopic inner sleeve 2 will separate from each other.

[0063] Based on the above structure, locking protrusions 305 are provided on the locking outer sleeve 301 and the locking inner sleeve 302. By controlling the locking protrusions 305 to apply external force to the telescopic inner sleeve 2 or not to apply external force, the mutual locking and separation between the supporting outer sleeve 1 and the telescopic inner sleeve 2 can be achieved. This makes it easy to adjust the distance and angle between the binocular navigation device and the patient during clinical use, so that the binocular navigation device is in the optimal position.

[0064] Combination Figure 2 , Figure 3 and Figure 4 It can be seen that, preferably, the locking outer sleeve 301 is provided with two bolt support ears 306, the two bolt support ears 306 are respectively located on both sides of the outer locking window 303, a drive handle 307 is hinged between the two bolt support ears 306, and the locking protrusion 305 is located between the drive handle 307 and the outer locking window 303.

[0065] The drive handle 307 includes an integrally formed eccentric rotating wheel 308 and a handle lever arm 309. A fixing bolt is passed through the eccentric rotating wheel 308, and two bolt support ears 306 are respectively fixed at both ends of the fixing bolt. The outer side wall of the eccentric rotating wheel 308 abuts against the locking protrusion 305.

[0066] The handle arm 309 rotates by driving the eccentric rotating wheel 308. When the handle lever arm 309 drives the distal side of the eccentric rotating wheel 308 to abut against the locking protrusion 305, the distal side of the eccentric rotating wheel 308 contacts the outer surface of the locking protrusion 305, the eccentric rotating wheel 308 presses against the locking protrusion 305, and the locking protrusion 305 further presses against the telescopic inner sleeve 2, thus locking the supporting outer sleeve 1 and the telescopic inner sleeve 2 together; when the handle lever arm 309 drives the distal side of the eccentric rotating wheel 308 to abut against the locking protrusion 305, the proximal side of the eccentric rotating wheel 308 contacts the outer surface of the locking protrusion 305, and the locking protrusion 305 can move within a certain range defined by the outer locking window 303 and the inner locking window 304. At this time, the locking protrusion 305 will not exert force on the telescopic inner sleeve 2, and the supporting outer sleeve 1 and the telescopic inner sleeve 2 are separated from each other.

[0067] A limiting wing 310 is provided on each side of the locking protrusion 305. In the locked state, the eccentric rotating wheel 308 presses the locking protrusion 305, and the limiting wing 310 abuts against both sides of the outer locking window 303. The locking protrusion 305 passes through the outer locking window 303 and the inner locking window 304 and then abuts against the telescopic inner sleeve 2.

[0068] The core technology of the above structure lies in the drive handle 307 composed of an eccentric rotating wheel 308 and a handle lever arm 309. Based on the above structure, the drive handle 307 is composed of an eccentric rotating wheel 308 and a handle lever arm 309. By turning the handle lever arm 309, the eccentric rotating wheel 308 can be driven to rotate around the fixing bolt as the central axis. The distal or proximal side of the eccentric rotating wheel 308 is controlled to abut against the locking protrusion 305, thereby controlling the depth of the locking protrusion 305 into the outer locking window 303 and the inner locking window 304, and thus controlling the telescopic inner sleeve 2 to lock or separate from the supporting outer sleeve 1.

[0069] like Figure 3 As shown, preferably, the inner side of the locking outer sleeve 301 is provided with an annular limiting platform (not shown in the figure), and the locking inner sleeve 302 is provided with an upper limiting protrusion 311 and a lower limiting protrusion 312. The upper limiting protrusion 311 is located at the upper end of the locking inner sleeve 302, and the lower limiting protrusion 312 is located at the lower end of the locking inner sleeve 302. The inner side of the locking outer sleeve 301 forms a cylindrical inner wall, and on this basis, the annular limiting platform is formed by protrusions on the inner wall. The annular limiting platform is formed circumferentially on the inner side of the locking outer sleeve 301.

[0070] like Figure 4 As shown, preferably, the locking inner sleeve 302 has an inner sleeve elastic side opening 313, which extends along the length direction of the locking inner sleeve 302. The locking inner sleeve 302 itself is a cylindrical structure, and the inner sleeve elastic side opening 313 makes the cylindrical locking inner sleeve 302 elastic. When it is subjected to compressive force from all four sides toward the axial direction, its outer wall will be compressed and contracted.

[0071] Based on the above structural features, when the inner locking sleeve 302 is assembled onto the outer locking sleeve 301, an external force is applied to the inner locking sleeve 302 to cause it to undergo elastic deformation, and it is simultaneously inserted into the outer locking sleeve 301. After adjusting the relative positions of the two, the upper limit protrusion 311 abuts against the upper end of the outer locking sleeve 301, and the lower limit protrusion 312 abuts against the annular limiting platform inside the outer locking sleeve 301.

[0072] Based on the above structure, the inner locking sleeve 302 itself is a cylindrical structure. An elastic side opening 313 is provided on the inner locking sleeve 302, so that the inner locking sleeve 302 has a certain elastic deformation space, which facilitates the assembly of the inner locking sleeve 302 onto the outer locking sleeve 301. The upper limit protrusion 311 abuts against the upper end of the outer locking sleeve 301, and the lower limit protrusion 312 abuts against the annular limiting platform inside the outer locking sleeve 301. This prevents relative displacement between the two components, the outer locking sleeve 301 and the inner locking sleeve 302, which are subjected to a lot of force during use, and ensures that the device structure is stable and reliable.

[0073] Specifically, the locking outer sleeve 301 is made of stainless steel, and the locking inner sleeve 302 is made of plastic. Using a stainless steel structure for the locking outer sleeve 301 effectively ensures the strength of the device; while using a plastic structure for the locking inner sleeve 302 prevents direct contact between the telescopic inner sleeve 2 and the locking inner sleeve 302 during relative movement, thus preventing irreversible wear.

[0074] like Figure 5 As shown, the limiting sleeve 5 has an elastic side opening 501, which extends along the length of the limiting sleeve 5. The limiting sleeve 5 itself is a cylindrical structure. The elastic side opening 501 on the limiting sleeve 5 allows the limiting sleeve 5 to have a certain elastic deformation space, which facilitates the assembly of the limiting sleeve 5 to the lower end of the telescopic inner sleeve 2.

[0075] like Figure 5 As shown, the telescopic inner sleeve 2 is provided with a snap-fit ​​groove 201, which is located circumferentially below the telescopic inner sleeve 2.

[0076] The assembly method between the telescopic inner sleeve 2 and the limiting sleeve 5 is the same as the assembly method between the locking inner sleeve 302 and the locking outer sleeve 301, and will not be described again here.

[0077] The upper edge of the telescopic inner sleeve 5 extends towards the central axis of the limiting sleeve 5 to form a snap-fit ​​protrusion 502, which is arranged circumferentially along the limiting sleeve 5. During use, when the limiting sleeve 5 is fixedly mounted on the telescopic inner sleeve 2, the snap-fit ​​protrusion 502 on the limiting sleeve 5 fits into the snap-fit ​​groove 201 on the telescopic inner sleeve 2. This structure prevents relative displacement between the limiting sleeve 5 and the telescopic inner sleeve 2 during use, ensuring the stability and reliability of the device structure.

[0078] like Figure 4As shown, the locking sleeve 3 has a threaded through hole 314, and a mounting bolt is installed in the threaded through hole 314. The mounting bolt abuts against the telescopic inner sleeve 2. The mounting bolt abuts against the telescopic inner sleeve 2 to generate a certain friction force, preventing the telescopic inner sleeve 2 from accidentally loosening during operation and causing other equipment such as the binocular navigation device to fall due to gravity, thus effectively avoiding damage to the operator and equipment.

[0079] Specifically, the supporting outer sleeve 1, the telescopic inner sleeve 2, the locking sleeve 3, and the outer sleeve 4 are metal structures, while the limiting sleeve 5 is a plastic structure. During the extension and retraction of this device, the limiting sleeve 5 may abut against the locking sleeve 3. Using a plastic structure for the limiting sleeve 5 prevents irreversible wear during use; while using metal structures for the supporting outer sleeve 1, the telescopic inner sleeve 2, the locking sleeve 3, and the outer sleeve 4 effectively ensures the strength of the device.

[0080] Preferably, the upper end of the telescopic inner sleeve 2 is provided with an external threaded connection part, and the lower end of the outer sleeve 4 is provided with an internal threaded connection part. The telescopic inner sleeve 2 and the outer sleeve 4 are fixedly connected to form an integral structure through the threaded engagement of the external and internal threaded connection parts. By extending the telescopic structure with a simple structure and adding the outer sleeve 4, it is easier to install and fix the binocular navigation device.

[0081] It should be understood that the application of this utility model is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A telescopic support device for a binocular navigation system, characterized in that, include: A supporting outer sleeve and a telescopic inner sleeve are provided, wherein the supporting outer sleeve and the telescopic inner sleeve are cylindrical structures, and the telescopic inner sleeve is movably fitted inside the supporting outer sleeve. A locking sleeve is fixedly disposed at the upper end of the supporting outer sleeve; An outer sleeve and a limiting sleeve are provided. The outer sleeve is fixedly installed at the upper end of the telescopic inner sleeve, and the limiting sleeve is fixedly installed at the lower end of the telescopic inner sleeve. The outer diameter of the limiting sleeve is larger than the outer diameter of the telescopic inner sleeve and smaller than the inner diameter of the supporting outer sleeve. The binocular navigator is installed on the outer sleeve through a connecting structure. When the telescopic inner sleeve moves upward to the top, the upper end of the limiting sleeve abuts against the lower end of the locking sleeve; when the telescopic inner sleeve moves downward to the bottom, the lower end of the outer sleeve abuts against the upper end of the locking sleeve; the locking sleeve is provided with a locking mechanism, which passes through the locking sleeve and the supporting outer sleeve and cooperates with the telescopic inner sleeve to realize the mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve.

2. The telescopic support device for a binocular navigation system according to claim 1, characterized in that, The locking sleeve includes a locking outer sleeve and a locking inner sleeve. The locking outer sleeve is fixedly sleeved outside the locking inner sleeve. An outer locking window is provided on the locking outer sleeve, and an inner locking window is provided on the locking inner sleeve. The outer locking window and the inner locking window overlap. A locking protrusion is movably disposed within the outer locking window and the inner locking window. The locking protrusion is driven by an external force to cooperate with the telescopic inner sleeve, thereby realizing the mutual locking and separation between the supporting outer sleeve and the telescopic inner sleeve.

3. The telescopic support device for a binocular navigation system according to claim 2, characterized in that, The locking outer sleeve is provided with two bolt support ears, which are located on both sides of the outer locking window respectively. A drive handle is hinged between the two bolt support ears, and the locking protrusion is located between the drive handle and the outer locking window. The drive handle includes an integrally formed eccentric rotating wheel and a handle lever arm. A fixing bolt is passed through the eccentric rotating wheel, and two bolt support ears are respectively fixed at both ends of the fixing bolt. The outer side wall of the eccentric rotating wheel abuts against the locking protrusion. When the handle lever arm drives the distal side of the eccentric rotating wheel to abut against the locking protrusion, the supporting outer sleeve and the telescopic inner sleeve are locked together; when the handle lever arm drives the distal side of the eccentric rotating wheel to abut against the locking protrusion, the supporting outer sleeve and the telescopic inner sleeve are separated. A limiting wing is provided on each side of the locking protrusion. The limiting wing abuts against the two sides of the outer locking window. The locking protrusion passes through the outer locking window and the inner locking window and abuts against the telescopic inner sleeve.

4. The telescopic support device for a binocular navigation system according to claim 3, characterized in that, The inner side of the locking outer sleeve is provided with an annular limiting platform, and the locking inner sleeve is provided with an upper limiting protrusion and a lower limiting protrusion. The upper limiting protrusion is located at the upper end of the locking inner sleeve, and the lower limiting protrusion is located at the lower end of the locking inner sleeve. The locking inner sleeve has an elastic side opening, which extends along the length of the locking inner sleeve. The upper limit protrusion abuts against the upper end of the locking outer sleeve, and the lower limit protrusion abuts against the annular limiting platform inside the locking outer sleeve.

5. A telescopic support device for a binocular navigation device according to claim 2, characterized in that, The locking outer sleeve is made of stainless steel, and the locking inner sleeve is made of plastic.

6. The telescopic support device for a binocular navigation system according to claim 1, characterized in that, The limiting sleeve has an elastic side opening, which extends along the length of the limiting sleeve.

7. A telescopic support device for a binocular navigation device according to claim 6, characterized in that, The telescopic inner sleeve is provided with a snap-fit ​​groove, which is located circumferentially below the telescopic inner sleeve; The upper edge of the telescopic inner sleeve extends toward the central axis of the limiting sleeve to form a snap-fit ​​protrusion, which is arranged along the circumference of the limiting sleeve. When the limiting sleeve is fixedly installed on the telescopic inner sleeve, the snap-fit ​​protrusion on the limiting sleeve is fitted into the snap-fit ​​groove on the telescopic inner sleeve.

8. A telescopic support device for a binocular navigation system according to claim 1, characterized in that, The locking sleeve has a threaded through hole, and a mounting bolt is installed in the threaded through hole of the locking sleeve. The mounting bolt abuts against the telescopic inner sleeve.

9. A telescopic support device for a binocular navigation device according to any one of claims 1-8, characterized in that, The supporting outer sleeve, the telescopic inner sleeve, the locking sleeve, and the outer connecting sleeve are metal structures, while the limiting sleeve is a plastic structure.

10. A telescopic support device for a binocular navigation system according to any one of claims 1-8, characterized in that, The upper end of the telescopic inner sleeve is provided with an external threaded connection part, and the lower end of the outer sleeve is provided with an internal threaded connection part. The telescopic inner sleeve and the outer sleeve are fixedly connected to each other as an integral structure through the threaded engagement of the external threaded connection part and the internal threaded connection part.

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