Pipeline exploration device

Abstract

The utility model provides an exploration device for a pipeline. An eyepiece is arranged at a lens cone opening of a first end of an upper section vertical lens cone; the second end of the upper-section vertical lens cone is provided with a first bolt, the first end of the lower-section vertical lens cone is provided with a bolt hole, the second end of the upper-section vertical lens cone extends into the lower-section vertical lens cone through a lens cone opening of the first end of the lower-section vertical lens cone, and the second end of the upper-section vertical lens cone is connected with the first end of the lower-section vertical lens cone. The first bolt is movably connected with the bolt hole in a matched manner; a hole is formed in the top of the horizontal lens cone; a lens cone opening in the second end of the lower-section vertical lens cone is communicated with the horizontal lens cone through the hole; the objective lens is arranged at a lens cone opening at the first end of the horizontal lens cone, the relay lens is arranged at a lens cone opening at the second end of the horizontal lens cone, and the relay lens is used for reflecting light rays entering the objective lens to the eyepiece. According to the scheme, the light propagation direction is changed through the exploration device, the situation in the manhole can be observed from the outside of the manhole, and therefore the purposes of saving manpower and improving exploration efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and specifically to a pipeline inspection device. Background Technology

[0002] To understand the current status of underground pipeline resources, on-site investigation by surveyors is necessary. The manhole consists of a small cylindrical entry channel at the top and a large cubic operating space at the bottom. The pipe opening is located on the side wall of the lower cubic structure, forming a completely sealed structure. Due to the manhole's unique structural characteristics, the rectilinear propagation of light, the dim lighting inside the manhole, and the possibility of water submerging the pipe opening, surveyors cannot directly observe the pipe opening on the side wall from the outside of the manhole, thus hindering their ability to assess the current status of underground pipeline resources.

[0003] Therefore, exploration personnel need to enter the manhole for inspection. To ensure the safety of personnel working inside the manhole, the "Safety Production Operation Specifications for Telecommunications Construction Engineering" provides detailed operational specifications for manhole operations. Before entering the manhole, water must be pumped out; work must not be carried out while pumping water. Before entering a pipeline manhole, a dedicated gas detection instrument must be used to detect gases, confirming the absence of flammable, explosive, toxic, or harmful gases, and ventilation must be ensured before entry. During operations, good ventilation must be maintained, and dedicated gas detection instruments must be used for gas monitoring. Ladders must be used when ascending or descending the manhole; it is strictly forbidden to place ladders on cables inside the manhole, or to step on cables or cable trays. Personnel entering the manhole must wear full-body safety belts, safety helmets, and safety ropes correctly. Someone must supervise from above the manhole while working inside. During manhole operations, communication between the workers and the patrol personnel outside must be maintained, and the ladders used for ascending or descending the manhole must not be removed.

[0004] Since it is not possible to directly observe the situation inside the manhole from outside, the exploration personnel need to enter the manhole to explore. However, entering the manhole to explore requires compliance with safe production operation procedures, which not only consumes manpower but also involves too much preliminary safety preparation work, resulting in low exploration efficiency. Utility Model Content

[0005] In view of this, the present invention provides a pipeline inspection device to achieve the purpose of saving manpower and improving inspection efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] This utility model discloses a pipe inspection device, which includes: an upper vertical tube, a lower vertical tube, a horizontal tube, an eyepiece, a relay lens, an objective lens, and a first pin.

[0008] The eyepiece is disposed at the opening of the upper vertical lens tube at the first end of the lens tube;

[0009] The first pin is provided at the second end of the upper vertical lens barrel, and the pin hole is provided at the first end of the lower vertical lens barrel.

[0010] The second end of the upper vertical tube extends into the lower vertical tube through the tube opening of the first end of the lower vertical tube;

[0011] The second end of the upper vertical lens tube and the first end of the lower vertical lens tube are movably connected by the first pin and the pin hole.

[0012] The top of the horizontal lens tube has a hole, and the lens tube opening at the second end of the lower vertical lens tube is connected to the horizontal lens tube through the hole;

[0013] The objective lens is disposed at the opening of the first end of the horizontal microscope tube, and the relay lens is disposed at the opening of the second end of the horizontal microscope tube. The relay lens is used to reflect the light entering the objective lens to the eyepiece.

[0014] Preferably, the upper vertical lens tube is a rigid circular tube structure with a diameter of 60mm and a length of 680mm;

[0015] The first pin is located 25mm from the opening of the upper vertical lens barrel at the second end.

[0016] Preferably, the lower vertical lens tube is a rigid circular tube structure with a diameter of 70 mm and a length of 750 mm;

[0017] The pin hole is provided 25mm from the opening of the first end of the lower vertical lens barrel.

[0018] Preferably, the device further includes: a second latch;

[0019] The second pin is located 30mm from the second end of the upper vertical lens barrel. When the upper vertical lens barrel is inserted into the lower vertical lens barrel, the second pin engages with the pin hole to lock the upper vertical lens barrel in place.

[0020] Preferably, the horizontal mirror tube is a rigid square tube structure;

[0021] The horizontal lens tube has a square cross-section with a side length of 80mm;

[0022] The length of the horizontal lens tube is 130mm;

[0023] The top of the horizontal lens tube has a circular hole with a diameter of 70mm.

[0024] Preferably, the device further includes: multiple LED beads, a battery module, and a push-button switch;

[0025] Each of the LED beads is connected to one end of the push-button switch, and the other end of the push-button switch is connected to the battery module;

[0026] Each of the LED beads is evenly arranged on the outer edge of the lens opening at the first end of the horizontal lens barrel.

[0027] Preferably, the length and width of each LED bead are both less than or equal to 15mm;

[0028] The power supply voltage of each LED bead is 3V to 5V, and the power of each LED bead is 1W.

[0029] Preferably, the length, width, and height of the battery module are 80mm, 55mm, and 10mm, respectively; the battery module includes a battery management device and a polymer lithium battery, wherein the polymer lithium battery is connected to the push-button switch;

[0030] The battery management device is connected to the polymer lithium battery and is used to manage the current input and output of the polymer lithium battery;

[0031] The nominal voltage of the polymer lithium battery is 3.7V;

[0032] The charging voltage of the polymer lithium battery is 4.2V to 5V;

[0033] The nominal capacity of the polymer lithium battery is 1000mAh;

[0034] Preferably, the objective lens is a circular plano-convex lens with a diameter of 63 mm, a focal length of 1000 mm, a center thickness of 3.96 mm, and an edge thickness of 3 mm.

[0035] The eyepiece is a circular plano-convex lens with a diameter of 40mm, a focal length of 500mm, a center thickness of 3.25mm, and an edge thickness of 2.5mm.

[0036] The relay mirror is an isosceles right-angled triangular prism reflector, the length of the edge and the two right-angled sides of the isosceles right-angled triangular prism reflector are all 80mm, and the reflective surface of the isosceles right-angled triangular prism reflector is coated with a total reflection film.

[0037] Preferably, a filler for fixing is provided between the eyepiece and the opening of the first end of the upper vertical lens tube;

[0038] A filler for fixing is provided between the objective lens and the first end of the horizontal microscope tube.

[0039] A pipe inspection device based on the above-described embodiment of the present invention includes: an upper vertical tube, a lower vertical tube, a horizontal tube, an eyepiece, a relay lens, an objective lens, and a first pin; the eyepiece is disposed at the tube opening of the first end of the upper vertical tube; the first pin is disposed at the second end of the upper vertical tube, and a pin hole is provided at the first end of the lower vertical tube; the second end of the upper vertical tube extends into the lower vertical tube through the tube opening of the first end of the lower vertical tube, and the second end of the upper vertical tube and the first end of the lower vertical tube are movably connected by the first pin and the pin hole; a hole is provided at the top of the horizontal tube, and the tube opening of the second end of the lower vertical tube communicates with the horizontal tube through the hole; the objective lens is disposed at the tube opening of the first end of the horizontal tube, and the relay lens is disposed at the tube opening of the second end of the horizontal tube; the relay lens is used to reflect light incident on the objective lens to the eyepiece. In this solution, by changing the direction of light propagation through a detection device, the detection personnel can observe the situation inside the manhole from outside, thereby saving manpower and improving detection efficiency. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0041] Figure 1 This is a side view of a pipe detection device disclosed in an embodiment of the present utility model;

[0042] Figure 2 This is a front view of a pipe detection device disclosed in an embodiment of the present utility model;

[0043] Figure 3 This is a top view of a pipe detection device disclosed in an embodiment of the present utility model;

[0044] Figure 4 This is an application scenario diagram of a pipeline detection device disclosed in an embodiment of the present utility model;

[0045] Figure 5 This is a schematic diagram of a pipeline detection device disclosed in an embodiment of the present utility model;

[0046] The components are as follows: upper vertical tube 1, lower vertical tube 2, horizontal tube 3, eyepiece 4, relay lens 5, objective lens 6, first pin 7, second pin 8, LED bead 9, battery module 10, and push-button switch 11. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] In this application, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0049] As can be seen from the background technology, since it is not possible to directly observe the situation inside the manhole from outside, the exploration personnel need to enter the manhole to explore. However, entering the manhole to explore requires compliance with safe production operation specifications, which not only consumes manpower but also involves too much preliminary safety preparation work, resulting in low exploration efficiency.

[0050] Therefore, this utility model embodiment discloses a pipe inspection device. In this solution, by changing the direction of light propagation through the inspection device, the inspector can observe the situation inside the manhole from outside the manhole, thereby achieving the purpose of saving manpower and improving inspection efficiency.

[0051] like Figure 1 The image shown is a side view of a pipe inspection device disclosed in an embodiment of this utility model. The device includes: an upper vertical tube 1, a lower vertical tube 2, a horizontal tube 3, an eyepiece 4, a relay lens 5, an objective lens 6, and a first pin 7.

[0052] The eyepiece 4 is located at the opening of the upper vertical tube 1 at the first end of the tube;

[0053] The second end of the upper vertical tube 1 is provided with a first pin 7, and the first end of the lower vertical tube 2 is provided with a pin hole. The second end of the upper vertical tube 1 extends into the lower vertical tube 2 through the tube opening of the first end of the lower vertical tube 2. The second end of the upper vertical tube 1 and the first end of the lower vertical tube 2 are movably connected by the first pin 7 and the pin hole.

[0054] The top of the horizontal tube 3 has a hole, and the tube opening at the second end of the lower vertical tube 2 is connected to the horizontal tube 3 through the hole;

[0055] Objective lens 6 is located at the opening of the first end of horizontal tube 3, and relay lens 5 is located at the opening of the second end of horizontal tube 3. Relay lens 5 is used to reflect the light entering objective lens 6 to eyepiece 4.

[0056] It should be noted that the overall appearance of this exploration device is L-shaped, and the vertical tube includes an upper vertical tube 1 and a lower vertical tube 2, which adopts a telescopic two-section design.

[0057] The center lines of the upper vertical tube 1, the lower vertical tube 2, and the horizontal tube 3 are located on the same plane, and the upper vertical tube 1 and the lower vertical tube 2 are arranged concentrically.

[0058] The upper vertical tube 1 and the lower vertical tube 2 are connected by a pin, with the upper vertical tube 1 extending 50mm into the lower vertical tube 2.

[0059] A hole of the same size as the opening at the second end of the lower vertical tube 2 is made above the horizontal tube 3, and the lower vertical tube 2 and the horizontal tube 3 are connected through this hole.

[0060] The internal spaces of the upper vertical tube 1, the lower vertical tube 2, and the horizontal tube 3 are connected as a single unit. In use, the upper vertical tube 1 extends from the lower vertical tube 2 (i.e., the upper vertical tube 1 and the lower vertical tube 2 are connected by a pin, with the upper vertical tube 1 extending 50mm into the lower vertical tube 2), resulting in a total vertical tube length of 1380mm. When stored, the upper vertical tube 1 retracts into the lower vertical tube 2, resulting in a total vertical tube length of 750mm.

[0061] In one embodiment, the upper vertical lens tube 1 is a rigid circular tube structure with a diameter of 60 mm and a length of 680 mm. The first pin 7 is located 25 mm from the lens tube opening at the second end of the upper vertical lens tube 1.

[0062] In one embodiment, the lower vertical lens tube 2 is a rigid circular tube structure with a diameter of 70 mm and a length of 750 mm. A pin hole is provided at the lens tube opening 25 mm from the first end of the lower vertical lens tube 2.

[0063] Preferably, four pin holes are provided at a distance of 25mm from the first end of the lower vertical lens tube 2, with the holes evenly distributed at 90° intervals.

[0064] In one embodiment, the detection device further includes: a second pin 8;

[0065] The second pin 8 is located 30mm from the second end of the upper vertical tube 1. When the upper vertical tube 1 is fully inserted into the lower vertical tube 2, the second pin 8 engages with the pin hole to lock the upper vertical tube 1 in place, thus preventing it from slipping out.

[0066] like Figure 2 The image shown is a front view of a pipe detection device disclosed in an embodiment of this utility model.

[0067] In one embodiment, the horizontal lens tube 3 is a rigid square tube structure; the cross-section of the horizontal lens tube 3 is a square with a side length of 80mm, and the length of the horizontal lens tube 3 is 130mm; a circular hole with a diameter of 70mm is opened at the top of the horizontal lens tube 3.

[0068] It should be noted that, since the diameter of the tube opening at the second end of the upper vertical tube 1 is 70mm, a circular hole with a diameter of 70mm is provided at the top of the horizontal tube 3 in order to ensure a proper fit at the connection point.

[0069] In one embodiment, the detection device further includes: a plurality of LED beads 9, a battery module 10 and a push-button switch 11; each LED bead 9 is connected to one end of the push-button switch 11, and the other end of the push-button switch 11 is connected to the battery module 10; each LED bead 9 is evenly arranged on the outer edge of the lens opening at the first end of the horizontal lens barrel 3.

[0070] Preferably, the length and width of each LED bead 9 are less than or equal to 15mm; the power supply voltage of each LED bead 9 is 3V to 5V; the power of each LED bead 9 is 1W; and the light emitted by each LED bead 9 is pure white light.

[0071] Preferably, the number of LED beads 9 is 4, which are respectively set at the four corners of the square lens opening at the first end of the horizontal lens tube 3.

[0072] Preferably, the battery module 10 is disposed at the upper part of the first end of the horizontal lens barrel 3; the length, width and height of the battery module 10 are 80mm, 55mm and 10mm respectively.

[0073] The battery module 10 includes a battery management device and a polymer lithium battery. The polymer lithium battery is connected to a push-button switch 11. The battery management device is connected to the polymer lithium battery and is used to manage the current input and output of the polymer lithium battery. The nominal voltage of the polymer lithium battery is 3.7V, the charging voltage of the polymer lithium battery is 4.2V to 5V, and the nominal capacity of the polymer lithium battery is 1000mAh.

[0074] It should be noted that the battery management device has protection functions such as overcharge protection, over-discharge protection, overvoltage protection, overcurrent protection, and short circuit protection.

[0075] like Figure 3 The image shown is a top view of a pipe detection device disclosed in an embodiment of this utility model.

[0076] In one embodiment, objective lens 6 is a circular plano-convex lens with a diameter of 63 mm, a focal length of 1000 mm, a center thickness of 3.96 mm, and an edge thickness of 3 mm.

[0077] Eyepiece 4 is a circular plano-convex lens with a diameter of 40mm, a focal length of 500mm, a center thickness of 3.25mm, and an edge thickness of 2.5mm.

[0078] The relay mirror 5 is an 80*80*80mm isosceles right-angled triangular prism with a total reflection coating on its beveled edge. That is, the length of the edge and the two right-angled sides of the isosceles right-angled triangular prism reflector is 80mm, and the reflecting surface of the isosceles right-angled triangular prism reflector is coated with a total reflection coating.

[0079] The reflecting surface is the hypotenuse of the isosceles right-angled triangular prism mirror.

[0080] In one embodiment, a filler for fixing the eyepiece 4 is provided between the eyepiece 4 and the opening of the first end of the upper vertical tube 1; a filler for fixing the objective lens 6 is provided between the objective lens 6 and the opening of the first end of the horizontal tube 3.

[0081] like Figure 4 The diagram shown is an application scenario diagram of a pipeline detection device disclosed in an embodiment of this utility model.

[0082] The overall appearance of this exploration device is an L-shaped tube with a hollow interior. The objective lens 6 and multiple LED beads 9 are mounted at the front end of the horizontal tube 3, and a relay mirror 5 is installed at the rear bend. An eyepiece 4 is installed at the opening of the first end of the upper vertical tube 1. The objective lens 6 and eyepiece 4 are lenses, and they are parallel to the end face of the tube. The relay mirror 5 is a reflecting mirror, with its reflecting surface forming a 45° angle with the horizontal tube 3.

[0083] In use, the explorer activates multiple LED beads 9 at the manhole opening via a push-button switch 11, then vertically inserts the exploration device into the manhole, adjusts its position appropriately, and aligns the objective lens 6 with the desired observation location. The LED beads 9 illuminate the object being observed, and the reflected light passes through the objective lens 6 into the horizontal lens tube 3. After being reflected by the relay lens 5, the light rises into the vertical lens tube, passes through the eyepiece 4, and enters the explorer's eye. Using this exploration device, the explorer, positioned downwards at the manhole opening, can observe the condition of the pipe holes on the inner sidewall of the manhole.

[0084] like Figure 5 The diagram shown is a schematic diagram of a pipeline detection device disclosed in an embodiment of this utility model.

[0085] The principal optical axis of objective lens 6 of this exploration device coincides with the center line of the horizontal tube 3, and the principal optical axis of eyepiece 4 coincides with the center line of the vertical tube (composed of the upper vertical tube 1 and the lower vertical tube 2). The principal optical axes of objective lens 6 and eyepiece 4 are located in the same plane and are perpendicular to each other. The relay lens 5 is mounted with its beveled side facing objective lens 6 and eyepiece 4, and its two right-angled sides are perpendicular to the principal optical axes of objective lens 6 and eyepiece 4, respectively. The center point of the reflecting surface is located at the intersection of the principal optical axes of objective lens 6 and eyepiece 4.

[0086] The LED beads 9 at the four corners of the horizontal lens tube 3 illuminate the inside of the manhole, increasing its brightness. Light reflected from the tube holes on the sidewall of the manhole passes horizontally through the objective lens 6. According to the imaging principle of a convex lens, light parallel to the principal axis of the lens is refracted and passes through the focal point on the opposite side of the lens. Light passing through the focal point is then refracted again and becomes parallel to the principal axis. The parallel light rays, after passing through the objective lens 6, gradually converge towards the focal point, pointing towards the focal point of the objective lens 6, 1000mm away. The center of the reflective surface of the relay mirror 5 is 80mm from the center of the objective lens 6. Before reaching the focal point of the objective lens 6, the light rays are reflected by the relay mirror 5, forming a virtual objective lens and image behind the relay mirror 5. The light rays change from horizontal propagation to vertical upward propagation. The focal point of the objective lens 6 is effectively located 920mm above the principal axis of the objective lens 6, on the principal axis of the eyepiece 4, coinciding with the focal point of the eyepiece 4. After passing through the focal point of eyepiece 4, the light enters eyepiece 4 500mm away. After being refracted by eyepiece 4, it enters the eyes of the observer in parallel, allowing them to observe the condition of the tube holes on the inner side wall of the manhole.

[0087] A pipe inspection device disclosed in the above-described embodiment of the present invention includes: an upper vertical tube, a lower vertical tube, a horizontal tube, an eyepiece, a relay lens, an objective lens, and a first pin; the eyepiece is disposed at the tube opening of the first end of the upper vertical tube; the second end of the upper vertical tube is provided with the first pin, and the first end of the lower vertical tube has a pin hole; the second end of the upper vertical tube extends into the lower vertical tube through the tube opening of the first end of the lower vertical tube; the second end of the upper vertical tube and the first end of the lower vertical tube are movably connected by the first pin and the pin hole; a hole is provided at the top of the horizontal tube, and the tube opening of the second end of the lower vertical tube communicates with the horizontal tube through the hole; the objective lens is disposed at the tube opening of the first end of the horizontal tube, and the relay lens is disposed at the tube opening of the second end of the horizontal tube, the relay lens being used to reflect light incident on the objective lens to the eyepiece. In this solution, inspectors can observe the conditions inside the manhole from outside, without needing to enter, thus eliminating complex manhole operation procedures and improving inspection efficiency. Specific advantages are as follows:

[0088] This device eliminates the complex procedures of pumping water, gas detection, climbing ladders, and ventilation required to enter the manhole, saving significant time. It also eliminates the need for water pumps, gas detectors, blowers, ladders, and related transport vehicles and personnel, reducing exploration costs. Exploration personnel can work outside the manhole, eliminating the need for dedicated monitoring staff and reducing manpower. The device is compact and portable, measuring only 830mm in length when folded. Its hollow interior and lightweight design allow for easy carrying without the need for specialized vehicles. It is simple to use, requiring only one person to operate without assistance. Furthermore, the absence of manhole entry for exploration personnel avoids hazards such as suffocation, poisoning, and falls, reducing operational risks.

[0089] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for system or system embodiments, since they are basically similar to method embodiments, the description is relatively simple, and relevant parts can be referred to the descriptions in the method embodiments. The systems and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0090] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those 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 to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe detection device, characterized in that, The device includes: an upper vertical lens tube, a lower vertical lens tube, a horizontal lens tube, an eyepiece, a relay lens, an objective lens, and a first latch; The eyepiece is disposed at the opening of the upper vertical lens tube at the first end of the lens tube; The first pin is provided at the second end of the upper vertical lens barrel, and the pin hole is provided at the first end of the lower vertical lens barrel. The second end of the upper vertical tube extends into the lower vertical tube through the tube opening of the first end of the lower vertical tube; The second end of the upper vertical lens tube and the first end of the lower vertical lens tube are movably connected by the first pin and the pin hole. The top of the horizontal lens tube has a hole, and the lens tube opening at the second end of the lower vertical lens tube is connected to the horizontal lens tube through the hole; The objective lens is disposed at the opening of the first end of the horizontal microscope tube, and the relay lens is disposed at the opening of the second end of the horizontal microscope tube. The relay lens is used to reflect the light entering the objective lens to the eyepiece.

2. The apparatus according to claim 1, characterized in that, The upper vertical tube is a rigid circular tube structure with a diameter of 60mm and a length of 680mm. The first pin is located 25mm from the opening of the upper vertical lens barrel at the second end.

3. The apparatus according to claim 2, characterized in that, The lower vertical tube is a rigid circular tube structure with a diameter of 70mm and a length of 750mm. The pin hole is provided 25mm from the opening of the first end of the lower vertical lens barrel.

4. The apparatus according to claim 3, characterized in that, The device further includes: a second latch; The second pin is located 30mm from the second end of the upper vertical lens barrel. When the upper vertical lens barrel is inserted into the lower vertical lens barrel, the second pin engages with the pin hole to lock the upper vertical lens barrel in place.

5. The apparatus according to claim 3, characterized in that, The horizontal mirror tube is a rigid square tube structure; The horizontal lens tube has a square cross-section with a side length of 80mm; The length of the horizontal lens tube is 130mm; The top of the horizontal lens tube has a circular hole with a diameter of 70mm.

6. The apparatus according to claim 1, characterized in that, The device also includes: multiple LED beads, a battery module, and a push-button switch; Each of the LED beads is connected to one end of the push-button switch, and the other end of the push-button switch is connected to the battery module; Each of the LED beads is evenly arranged on the outer edge of the lens opening at the first end of the horizontal lens barrel.

7. The apparatus according to claim 6, characterized in that, The length and width of each LED bead are less than or equal to 15mm; The power supply voltage of each LED bead is 3V to 5V, and the power of each LED bead is 1W.

8. The apparatus according to claim 6, characterized in that, The length, width, and height of the battery module are 80mm, 55mm, and 10mm, respectively. The battery module includes a battery management device and a polymer lithium battery, wherein the polymer lithium battery is connected to the push-button switch; The battery management device is connected to the polymer lithium battery and is used to manage the current input and output of the polymer lithium battery; The nominal voltage of the polymer lithium battery is 3.7V; The charging voltage of the polymer lithium battery is 4.2V to 5V; The nominal capacity of the polymer lithium battery is 1000mAh.

9. The apparatus according to claim 1, characterized in that, The objective lens is a circular plano-convex lens with a diameter of 63 mm, a focal length of 1000 mm, a center thickness of 3.96 mm, and an edge thickness of 3 mm. The eyepiece is a circular plano-convex lens with a diameter of 40mm, a focal length of 500mm, a center thickness of 3.25mm, and an edge thickness of 2.5mm. The relay mirror is an isosceles right-angled triangular prism reflector, the length of the edge and the two right-angled sides of the isosceles right-angled triangular prism reflector are all 80mm, and the reflective surface of the isosceles right-angled triangular prism reflector is coated with a total reflection film.

10. The apparatus according to any one of claims 1 to 9, characterized in that, A filler for fixing is provided between the eyepiece and the opening of the upper vertical lens tube at the first end; A filler for fixing is provided between the objective lens and the first end of the horizontal microscope tube.

Images