Device for cleaning dirt on head of tin bath endoscope

Abstract

A device for cleaning dirt on a tin bath endoscope head comprises a shell, an endoscopic rod, an air inlet, a purging air path and a protective air path, the shell is of a cylindrical structure with a cavity inside, the air inlet is formed in the side wall, close to the tail end, of the shell, and a conical hole with the large outside and the small inside is formed in the side wall, close to the other end, of the shell; an endoscopic rod is arranged in a cavity of the shell, a lens arranged on the endoscopic rod is matched with a conical hole formed in the shell, and a purging gas circuit and a protection gas circuit are arranged in the cavity. According to the utility model, the purging gas circuit is additionally arranged, when the endoscope lens is shielded by dirt, the original protection gas circuit is closed by utilizing the purging N gas on the spot of the tin bath and changing the flow direction of the protection N gas, so that the airflow purges the endoscope lens from the purging gas circuit, the cleaning time is greatly shortened, the change of the bath pressure of the tin bath caused by opening the tin bath operation door is avoided, and the service life of the endoscope lens is prolonged. And external air is prevented from entering the tin bath to pollute the tin liquid, so that the working intensity of a post is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of glass production line equipment, and in particular relates to a device for cleaning dirt on a tin bath endoscope lens. Background Art

[0002] In the production of ultra-thin glass, after long-term use, a layer of dirt (tin oxysulfide) adheres to the endoscope lens 1, which blocks the lens and affects the normal monitoring of production. Therefore, the endoscope lens needs to be purged and cleaned. Since the endoscope rod is long and inconvenient to pull out, it is necessary to use a purge rod to extend into the tin bath to purge the lens. The operation is very troublesome and the operating door of the tin bath needs to be opened, which will affect the tank pressure of the tin bath and easily cause external air to enter and contaminate the tin liquid. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to design a device for cleaning dirt from the endoscope lens of a tin bath, so as to cope with the problem of tin liquid contamination caused by the entry of external air due to the complicated operation of cleaning the endoscope lens mentioned in the background technology and the need to open the operating door of the tin bath.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a device for cleaning dirt from the endoscope lens of a tin bath, comprising a shell, an endoscope rod, an air inlet, a purge air path and a protective air path, the shell being a cylindrical structure with a cavity inside, the shell being provided with an air inlet on a side wall near the end thereof, and a conical hole which is larger outside and smaller inside is provided on a side wall near the other end of the shell, an endoscope rod is provided in the cavity of the shell, the lens of the endoscope rod cooperates with the conical hole provided in the shell, and the purge air path and the protective air path are provided in the cavity.

[0005] One end of the purge air circuit is connected to the air inlet, and the other end is arranged at the lens of the endoscope rod to clean the dirt on the lens; one end of the protection air circuit is connected to the air inlet, and the other end is arranged at the inner wall of the tapered hole to prevent the tapered hole from being blocked by dirt.

[0006] The purge gas circuit and the protection gas circuit are arranged in parallel in the cavity of the shell.

[0007] The air inlet is provided with a three-way valve, and the air inlet is connected to the purge air circuit and the protection air circuit respectively after passing through the three-way valve, and the flow direction of the gas is switched by the three-way valve.

[0008] The air inlet is connected to the purge air circuit and the protection air circuit respectively through a tee. The purge air circuit is provided with a stop valve A, and the protection air circuit 5 is provided with a stop valve B. The stop valve A and the stop valve B are used to change the flow direction of the gas.

[0009] The beneficial effects of the utility model are as follows: a purge air circuit is added, and when the endoscope lens is blocked by dirt, the purging protection N gas at the tin bath site is utilized, the air inlet direction of the protective N gas is changed through a three-way valve, the original protective air circuit is closed, and the air flow from the purge air circuit is used to purge the endoscope lens, thereby greatly reducing the cleaning time, avoiding the change of the tin bath pressure caused by opening the tin bath operating door, and avoiding the situation where external air enters the tin bath to contaminate the tin liquid, thereby reducing the work intensity of the post. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0011] Figure 2 The utility model gas circuit diagram Figure Ⅰ .

[0012] Figure 3 This is the gas circuit schematic diagram II of the utility model.

[0013] In the figure: 1. shell, 101. cavity, 102. tapered hole, 2. endoscope rod, 201. lens, 3. air inlet, 4. purge air path, 401. stop valve A, 5. protective air path, 501. stop valve B, 6. three-way valve. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings of this specification to clearly and completely describe the technical solution of the utility model. It should be noted that the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-Figure 3A device for cleaning dirt from a tin bath endoscope lens comprises a housing 1, an endoscope rod 2, an air inlet 3, a purge air path 4 and a protective air path 5. The housing 1 is a cylindrical structure with a cavity 101 inside. The housing 1 is provided with an air inlet 3 on the side wall near the end thereof, and a tapered hole 102 with a large outside and a small inside is provided on the side wall near the other end of the housing 1. The endoscope rod 2 is provided in the cavity 101 of the housing 1. The lens 201 of the endoscope rod 2 matches the tapered hole 102 provided in the housing 1. The purge air path 4 and the protective air path 5 are provided in the cavity 101. One end of the purge air path 4 is connected to the air inlet 3, and the other end thereof is provided at the lens 201 of the endoscope rod 2 for cleaning dirt from the lens 201. One end of the protective air path 5 is connected to the air inlet 3, and the other end thereof is provided at the inner wall of the tapered hole 102 for preventing the tapered hole 102 from being blocked by dirt. The purge gas circuit 4 and the protective gas circuit 5 are arranged in parallel in the cavity 101 of the housing 1. The air inlet 3 is provided with a three-way valve 6. The air inlet 3 is connected to the purge gas circuit 4 and the protective gas circuit 5 respectively after passing through the three-way valve 6, and the flow direction of the gas is switched by the three-way valve 6. The air inlet 3 is connected to the purge gas circuit 4 and the protective gas circuit 5 respectively through a three-way valve. The purge gas circuit 4 is provided with a stop valve A401, and the protective gas circuit 5 is provided with a stop valve B501. The stop valve A401 and the stop valve B501 are used to change the flow direction of the gas.

[0016] When the utility model is in use:

[0017] according to Figure 2 Gas path diagram Figure Ⅰ Under normal circumstances, the tin bath on-site purge N gas flowing in from the air inlet 3 is connected to the protective gas path 5 through the three-way valve 6. When it is found that the lens 201 of the endoscope rod 2 is blocked by dirt, the three-way valve 6 is used to switch the N gas entering from the air inlet 3 from the protective gas path 5 to the purge gas path 4, so that the N gas enters from the purge gas path 4, so that the N gas cleans the dirt on the lens 201. Then, the three-way valve 6 is used to switch the N gas from the purge gas path 4 back to the protective gas path 5, so that the N gas purges the tapered hole 102 again and protects the camera lens, thereby reducing the obstruction of the tapered hole 102 by dirt;

[0018] according to Figure 3Schematic diagram of the gas circuit II, under normal circumstances, the stop valve B501 of the protection gas circuit 5 is in the open state, and the stop valve A401 of the purge gas circuit 4 is in the closed state. The tin bath on-site purge N gas flowing in from the air inlet 3 is connected to the protection gas circuit 5. When it is found that the lens 201 of the endoscope rod 2 is blocked by dirt, the stop valve A401 provided in the purge gas circuit 4 is first opened, and then the stop valve B501 provided in the protection gas circuit 5 is closed. At this time, the tin bath on-site purge N gas flows in from the purge gas circuit 4 to clean the lens 201. After cleaning the dirt, the stop valve B501 of the protection gas circuit 5 is first opened and then the stop valve A401 of the purge gas circuit 4 is closed. The protective N gas flows into the protection gas circuit 5 again to purge and protect the camera lens, thereby reducing the obstruction of the conical hole 102 by dirt.

[0019] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0020] The parts not described in detail in this utility model are prior art.

Claims

1. A device for cleaning dirt from a tin bath endoscope lens, comprising a housing (1), an endoscope rod (2), an air inlet (3), a purge air path (4) and a protective air path (5), wherein: The shell (1) is a cylindrical structure with a cavity (101) inside. The shell (1) is provided with an air inlet (3) on a side wall near the end thereof. A tapered hole (102) that is larger outside and smaller inside is provided on a side wall near the other end of the shell (1). An endoscope rod (2) is provided in the cavity (101) of the shell (1). A lens (201) provided on the endoscope rod (2) cooperates with the tapered hole (102) provided in the shell (1). A purge air path (4) and a protective air path (5) are provided in the cavity (101).

2. The device for cleaning dirt from the endoscope lens of a tin bath according to claim 1, characterized in that: One end of the purge air path (4) is connected to the air inlet (3), and the other end thereof is arranged at the lens (201) of the endoscope rod (2) for cleaning dirt from the lens (201); one end of the protection air path (5) is connected to the air inlet (3), and the other end thereof is arranged at the inner wall of the tapered hole (102) for preventing the tapered hole (102) from being blocked by dirt.

3. The device for cleaning dirt from the endoscope lens of a tin bath according to claim 1, characterized in that: The purge gas circuit (4) and the protection gas circuit (5) are arranged in parallel in the cavity (101) of the housing (1).

4. The device for cleaning dirt from the endoscope lens of a tin bath according to claim 1, characterized in that: The air inlet (3) is provided with a three-way valve (6), and the air inlet (3) is connected to the purge air circuit (4) and the protection air circuit (5) respectively after passing through the three-way valve (6), and the flow direction of the gas is switched through the three-way valve (6).

5. The device for cleaning dirt from the endoscope lens of a tin bath according to claim 1, characterized in that: The air inlet (3) is connected to the purge air circuit (4) and the protection air circuit (5) respectively through a three-way connection. The purge air circuit (4) is provided with a stop valve A (401), and the protection air circuit (5) is provided with a stop valve B (501). The stop valve A (401) and the stop valve B (501) are used to change the flow direction of the gas.

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