A kind of surveying and mapping engineering surveying and mapping instrument lens defogging device

Abstract

The utility model discloses a kind of surveying and mapping engineering surveying and mapping instrument lens defogging devices, including defogging device main part, the end of defogging device main part is provided with surveying and mapping instrument objective lens, the upper surface of defogging device main part is fixed with air guide seat by screw, the upper surface of air guide seat is fixed with micro fan by screw, the outer surface of surveying and mapping instrument objective lens is fixed with surveying and mapping instrument objective lens by screw;By designing dehumidification mechanism, can be installed in the top end of micro fan before defogging treatment, half of the dry agent particles stored in the inside of net type storage tank is fixed by external thread net plate, when air enters air guide through external thread net plate by air guide of micro fan, when air in it enters the inside of net type storage tank, it is effectively absorbed moisture treatment after dry agent particles after again entering the inside of micro fan, to facilitate the surface of surveying and mapping instrument objective lens after dry treatment by air guide when entering, it is not easy to enter moisture effective defogging when air guide.

Description

Technical Field

[0001] This utility model belongs to the technical field of lens defogging devices, specifically relating to a lens defogging device for a surveying and mapping engineering surveying instrument. Background Technology

[0002] A surveying instrument is an instrument used for surveying during engineering construction. During surveying, the objective lens installed at the end of the instrument is used for observation and surveying. When the surface of the objective lens is affected by temperature difference during surveying, water vapor will adhere to it and it needs to be defogging. Usually, a defogging device is installed to remove the fog. The existing lens defogging device is a device installed on the surface of the lens at the end of the surveying instrument for defogging. Existing defogging devices installed on surveying instruments for defogging the lens tip surface rely on a micro fan blowing air directly onto the lens surface. However, if the surrounding air is humid while the micro fan is running, moisture can easily be drawn in and blown onto the lens surface, reducing the defogging effect. This compromises the convenience and effectiveness of the defogging device when used on the surveying instrument lens. Therefore, this invention proposes a defogging device for surveying instruments. Utility Model Content

[0003] The purpose of this utility model is to provide a defogging device for the lens of a surveying and mapping engineering instrument, so as to solve the problem in the background art that when the defogging device is installed on the end surface of the lens of the surveying and mapping engineering instrument for defogging treatment, if the surrounding air is humid when the micro fan is running, it is easy for moisture to enter during the blowing and be blown onto the lens surface, thereby reducing the defogging effect on the lens.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a defogging device for a surveying and mapping engineering instrument lens, comprising a defogging device body, a surveying and mapping instrument objective lens disposed at the end of the defogging device body, an air guide seat fixed to the upper surface of the defogging device body by screws, a micro fan fixed to the upper surface of the air guide seat by screws, a fixing ring fixed to the outer surface of the surveying and mapping instrument objective lens by screws, a dehumidification mechanism disposed at the top of the micro fan, and a uniform blowing mechanism disposed on the inner edge of the fixing ring; The dehumidification mechanism includes a storage component disposed on the top of a micro fan, a rotating mounting component disposed at the bottom of the storage component, and a protective component disposed at the top of the storage component. The uniform blowing mechanism includes a uniform ventilation component disposed inside the fixed ring, and the inner surface of the uniform ventilation component is provided with a uniform blowing component.

[0005] Preferably, the side of the air guide seat is sealed and fixed with a main pipe, and the end of the main pipe is sealed and fixed with two branch pipes, the bottom end of the branch pipes being sealed and fixed with the top end of the fixing ring.

[0006] Preferably, the storage component includes a storage box disposed at the top of the micro fan, wherein partitions are fixed at equal intervals inside the storage box, and the interior of the storage box is divided into mesh storage slots by the partitions.

[0007] Preferably, the rotary mounting assembly includes an integrally formed internal thread structure located at the bottom edge of the storage box, and an integrally formed external thread ring matching the internal thread structure located at the top edge of the micro fan.

[0008] Preferably, the protective component includes an externally threaded mesh plate disposed at the top of the storage box, and the externally threaded mesh plate is compatible with the inner surface structure of the storage box and is fixed by screws.

[0009] Preferably, the uniform ventilation assembly includes an annular groove formed at the inner edge of the fixed ring, and the bottom end of the branch pipe is connected to the interior of the annular groove.

[0010] Preferably, the uniform blowing assembly includes an outer oblique hole and an inner oblique hole that are equidistantly opened at both sides of the inner edge of the fixing ring, and the outer oblique hole and the inner oblique hole are symmetrically arranged and connected to the interior of the annular groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By designing a dehumidification mechanism, the storage box can be rotated and installed on the top of the micro fan before defogging. Half of the desiccant granules are stored inside the mesh storage tank and fixed by an external threaded mesh plate. When the micro fan blows air through the external threaded mesh plate, the moisture in the air enters the mesh storage tank. After being effectively absorbed by the desiccant granules, the moisture re-enters the micro fan. This facilitates the drying process before the air is blown onto the surface of the surveying instrument's objective lens. The airflow does not easily allow moisture to enter, effectively defogging the device. This improves the convenience and effectiveness of dehumidifying the micro fan end when the defogging device is installed on the surveying instrument lens for defogging. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged structural diagram of section A; Figure 3 This is a cross-sectional view of the micro fan, air guide base, and storage box of this utility model. Figure 4 This is a cross-sectional structural diagram of the fixing ring, annular groove, and surveying instrument objective lens of this utility model; Figure 5 This is a schematic diagram of a partial structure of the fixing ring and the branch pipe of this utility model; Figure 6This is a partial cross-sectional view of the fixing ring, outer oblique hole, and inner oblique hole of this utility model; In the diagram: 101, main body of the defogging device; 102, objective lens of the surveying instrument; 103, fixing ring; 1031, annular groove; 1032, external oblique hole; 1033, internal oblique hole; 104, micro fan; 1041, storage box; 1042, external threaded ring; 1043, internal thread structure; 1044, mesh storage tank; 1045, partition plate; 1046, external threaded mesh plate; 105, air guide seat; 106, main pipe; 107, branch pipe. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1 to 6 This utility model provides a technical solution: a defogging device for a surveying and mapping instrument lens, including a defogging device body 101, a surveying and mapping instrument objective lens 102 at the end of the defogging device body 101, a wind guide seat 105 fixed to the upper surface of the defogging device body 101 by screws, a micro fan 104 fixed to the upper surface of the wind guide seat 105 by screws, a fixing ring 103 fixed to the outer surface of the surveying and mapping instrument objective lens 102 by screws, a main pipe 106 sealed and fixed to the side of the wind guide seat 105, two branch pipes 107 sealed and fixed to the end of the main pipe 106, and the bottom end of the branch pipes 107 sealed and fixed to the top end of the fixing ring 103; The top of the micro fan 104 is equipped with a dehumidification mechanism, which includes a storage component located at the top of the micro fan 104. The bottom of the storage component is equipped with a rotating mounting component, and the top of the storage component is equipped with a protective component. When the objective lens 102 of the surveying instrument is working to defog the surface, the dehumidification mechanism can facilitate clear defogging testing of the surface of the objective lens 102 of the surveying instrument.

[0015] In order to facilitate the separation and storage of desiccant particles through the storage component and achieve effective dehumidification, in this embodiment, preferably, the storage component includes a storage box 1041 disposed at the top of the micro fan 104. The storage box 1041 has partitions 1045 fixed at equal intervals inside. The storage box 1041 is divided into mesh storage slots 1044 by the partitions 1045. Half of the desiccant particles can be stored in the mesh storage slots 1044. After storing the desiccant particles, the air intake facilitates drying and defogging when passing through, thus achieving effective defogging.

[0016] In order to facilitate the installation and use of the storage box 1041 by rotating the mounting assembly, in this embodiment, preferably, the rotating mounting assembly includes an internal thread structure 1043 integrally disposed at the bottom edge of the storage box 1041, and an external thread ring 1042 integrally disposed at the top edge of the micro fan 104 that matches the internal thread structure 1043. The storage box 1041 can be installed by rotating the external thread ring 1042 and the internal thread structure 1043, which facilitates installation, storage and use.

[0017] In order to facilitate the protection of the top of the storage box 1041 and the entry of the desiccant particles into the storage box 1041 through the protective component, in this embodiment, preferably, the protective component includes an externally threaded mesh plate 1046 disposed at the top of the storage box 1041, and the externally threaded mesh plate 1046 is matched with the inner surface structure of the storage box 1041 and fixed by screws. The externally threaded mesh plate 1046 can be installed for protection after half of the desiccant particles are stored inside the storage box 1041, which is convenient for installation. Moreover, it is easy to float when the air is inlet and the desiccant particles are stored, so that there is a gap for air to enter.

[0018] The inner edge of the fixing ring 103 is provided with a uniform blowing mechanism. The uniform blowing mechanism includes a uniform ventilation component disposed inside the fixing ring 103. The inner surface of the uniform ventilation component is provided with a uniform blowing component. When the air intake inside the fixing ring 103 is used to defog the surface of the surveying instrument objective lens 102, the uniform blowing mechanism blows air to the end surface of the surveying instrument objective lens 102 to defog and drive away the surrounding moisture.

[0019] In order to facilitate uniform airflow defogging through the uniform ventilation component, in this embodiment, preferably, the uniform ventilation component includes an annular groove 1031 formed at the inner edge of the fixing ring 103, and the bottom end of the branch pipe 107 is connected to the interior of the annular groove 1031, so that when airflow is blown inside the annular groove 1031, it is convenient to uniformly blow out air and effectively defog.

[0020] To facilitate defogging and moisture removal from the surrounding air by using a uniform air blowing assembly, in this embodiment, preferably, the uniform air blowing assembly includes an outer oblique hole 1032 and an inner oblique hole 1033 equidistantly opened on both sides of the inner edge of the fixing ring 103. The outer oblique hole 1032 and the inner oblique hole 1033 are symmetrically arranged and connected to the interior of the annular groove 1031. After uniform air intake into the annular groove 1031, the air is blown out through the outer oblique hole 1032 to the end edge of the surveying instrument objective lens 102 to remove moisture, and the air is blown through the inner oblique hole 1033 to the surface of the surveying instrument objective lens 102 for dehumidification, thus facilitating defogging and moisture removal.

[0021] The working principle and usage process of this utility model: When using this type of defogging device for surveying and mapping instruments, it is installed on the main body 101 of the defogging device to defog the surface of the objective lens 102 of the surveying and mapping instrument. The micro fan 104 is powered on and blows air into the air guide seat 105. After entering the air guide seat 105, the air is guided into the main pipe 106 and the branch pipe 107, and then through the branch pipe 107 into the annular groove 1031 inside the fixing ring 103. The interior of 31 is vented by multiple external oblique holes 1032 and internal oblique holes 1033. When the internal oblique holes 1033 blow air, the air is directed to the surface of the surveying instrument objective lens 102 for uniform defogging. When the external oblique holes 1032 blow air, the air is directed to the outside, which facilitates the removal of the surrounding humid environment and makes it difficult for moisture to adhere to the surface of the surveying instrument objective lens 102. This facilitates air blowing and defogging and effectively removes moisture, improving the uniform air blowing and defogging effect of the defogging device installed on the outer surface of the surveying instrument objective lens 102. Then, before the defogging process, the storage box 1041 is rotated and installed on the top of the micro fan 104 by rotating between the internal thread structure 1043 and the external thread ring 1042. After installation, half of the desiccant particles are stored inside the mesh storage tank 1044. After storing the desiccant, the external thread mesh plate 1046 is closed and fixed to the tail end of the storage box 1041, thus facilitating the storage of desiccant particles. Therefore, when the micro fan 104 blows air through the external thread mesh plate 1046 into the air... When moisture is introduced into the mesh storage tank 1044, it is effectively absorbed by the desiccant particles and then enters the micro fan 104. This facilitates the drying process before the air is blown onto the surface of the surveying instrument objective lens 102. The blowing process prevents moisture from entering and effectively defogging the device. This improves the convenience and effectiveness of the defogging device at the end of the micro fan 104 during defogging of the surveying instrument lens. The desiccant particles inside the mesh storage tank 1044 are replaced every three months after the defogging process.

[0022] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A defogging device for a surveying instrument lens, comprising a defogging device body (101), wherein a surveying instrument objective lens (102) is disposed at the end of the defogging device body (101), a wind guide seat (105) is fixed to the upper surface of the defogging device body (101) by screws, a micro fan (104) is fixed to the upper surface of the wind guide seat (105) by screws, and a fixing ring (103) is fixed to the outer surface of the surveying instrument objective lens (102) by screws, characterized in that: The top of the micro fan (104) is provided with a dehumidification mechanism, and the inner edge of the fixing ring (103) is provided with a uniform blowing mechanism; The dehumidification mechanism includes a storage component disposed on the top of a micro fan (104), a rotating mounting component disposed at the bottom of the storage component, and a protective component disposed at the top of the storage component; The uniform blowing mechanism includes a uniform ventilation component disposed inside the fixed ring (103), and the inner surface of the uniform ventilation component is provided with a uniform blowing component.

2. The defogging device for a surveying and mapping engineering instrument lens according to claim 1, characterized in that: The side of the air guide seat (105) is sealed with a main pipe (106), and the end of the main pipe (106) is sealed with two branch pipes (107). The bottom end of the branch pipes (107) is sealed with the top end of the fixing ring (103).

3. The defogging device for a surveying and mapping engineering instrument lens according to claim 1, characterized in that: The storage component includes a storage box (1041) disposed at the top of the micro fan (104), and partitions (1045) are fixed at equal intervals inside the storage box (1041). The storage box (1041) is divided into mesh storage slots (1044) by the partitions (1045).

4. The defogging device for a surveying and mapping engineering instrument lens according to claim 3, characterized in that: The rotating mounting assembly includes an internal thread structure (1043) integrally disposed at the bottom edge of the storage box (1041), and an external thread ring (1042) integrally disposed at the top edge of the micro fan (104) that matches the internal thread structure (1043).

5. A defogging device for a surveying and mapping engineering instrument lens according to claim 3, characterized in that: The protective assembly includes an externally threaded mesh plate (1046) disposed at the top of the storage box (1041), and the externally threaded mesh plate (1046) is compatible with the inner surface structure of the storage box (1041) and is fixed by screws.

6. A defogging device for a surveying and mapping engineering instrument lens according to claim 2, characterized in that: The uniform ventilation assembly includes an annular groove (1031) formed at the inner edge of the fixed ring (103), and the bottom end of the branch pipe (107) is connected to the interior of the annular groove (1031).

7. A defogging device for a surveying and mapping engineering instrument lens according to claim 6, characterized in that: The uniform blowing assembly includes an outer oblique hole (1032) and an inner oblique hole (1033) equidistantly opened on both sides of the inner edge of the fixing ring (103), and the outer oblique hole (1032) and the inner oblique hole (1033) are symmetrically arranged and connected to the interior of the annular groove (1031).

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