Night vision device capable of rapidly replacing nitrogen

Abstract

The utility model discloses a night vision device capable of rapidly replacing nitrogen, which relates to the technical field of night vision devices and comprises a night vision assembly and a fixing support, one side of the fixing support is rotatably connected with a rotary connecting seat, a lens cone is fixed on one side, far away from the fixing support, of the rotary connecting seat, and a gas guide assembly is arranged on the surface of the night vision assembly. Comprising a first air guide seat embedded in one side of a lens cone, a second air guide seat is embedded in the surface of the lens cone, and a storage assembly is arranged at the top of a fixed support. The utility model has the beneficial effects that the nitrogen replacement efficiency and the operation convenience are obviously improved through the cooperation of the two-way gas circuit replacement system and the automatic sealing interface, the problems of tedious manual operation and easy damage of the interface are effectively solved, the air tightness requirement is ensured, the equipment damage caused by repeated disassembly and assembly is avoided, and the production cost is reduced. And meanwhile, a rapid nitrogen replacement process is realized, and the maintenance efficiency and the use reliability of the night vision device are greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to night vision technology field especially a night vision instrument of nitrogen can be replaced fast. BACKGROUND

[0002] In the daily work of night vision instrument use, need to adopt the structure design of nitrogen can be replaced fast to maintain, avoid nitrogen purity deficiency and influence imaging definition, or cause oxidation damage risk to equipment optical assembly.

[0003] The existing night vision instrument of nitrogen can be replaced has obvious defect in nitrogen filling process, only sets up single inflation hole structure, must pass through manual installation screw thread gas needle and connects special nitrogen filling equipment, needs repeatedly carries out vacuumizing and nitrogen injection alternation operation when operating, whole replacement process is time -consuming and labor -intensive, can not realize automatic nitrogen replacement process, this kind of traditional design not only leads to low working efficiency, more likely because improper operation affects air tightness, or because repeatedly dismounts and damages interface, finally reduces the use reliability and maintenance convenience of night vision instrument. UTILITY MODEL CONTENTS

[0004] In view of above -mentioned existing problem in the night vision instrument of nitrogen can be replaced fast, the utility model is provided.

[0005] Therefore, the problem to be solved by the utility model lies in how to replace nitrogen by one-way injection.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme: a night vision instrument of nitrogen can be replaced fast, it includes, night vision component, including fixed support, the one side of fixed support rotatably connected with rotary connecting seat, the one side fixed with lens barrel of rotary connecting seat away from fixed support, and, gas guide component, is arranged on the surface of night vision component, including the first gas guide seat of embedding in one side of lens barrel, the surface embedding of lens barrel has second gas guide seat.

[0007] As a preferred scheme of the night vision instrument of nitrogen can be replaced fast of the utility model, wherein: the top of fixed support is provided with storage assembly.

[0008] As a preferred scheme of the night vision instrument of nitrogen can be replaced fast of the utility model, wherein: the storage assembly includes the limiting shell of movably connected to the top of fixed support, one side of the limiting shell is fixed with spring limiting piece, the other side of the limiting shell is fixed with connecting piece.

[0009] As a preferred scheme of the night vision instrument of nitrogen can be replaced fast of the utility model, wherein: the storage assembly further includes the storage shell of embedding in the top of fixed support, the inner chamber of storage shell movably connects with quick release type check valve, the inner wall of connecting piece movably connects with guide.

[0010] As a preferred scheme of the night vision device capable of quickly replacing nitrogen gas, the guide piece comprises a guide column fixed to the top of the fixed support, and a guide groove is formed in the surface of the guide column.

[0011] As a preferred scheme of the night vision device capable of quickly replacing nitrogen gas, the connecting piece comprises a second sliding plate fixed to the surface of the limiting shell, an installation hole is formed in the top of the second sliding plate, and a guide sliding block matched with the guide groove is fixed to the inner wall of the installation hole.

[0012] As a preferred scheme of the night vision device capable of quickly replacing nitrogen gas, the spring limiting piece comprises a fixed rod fixed to the top of the fixed support, a limiting block is fixed to the top of the fixed rod, a limiting spring is sleeved on the surface of the fixed rod, a first sliding plate is sleeved on the fixed rod, and the first sliding plate is fixed to one side of the limiting shell.

[0013] As a preferred scheme of the night vision device capable of quickly replacing nitrogen gas, an anti-skid knob is fixed to the top of the limiting shell.

[0014] The beneficial effects of the night vision device capable of quickly replacing nitrogen gas are as follows: through the cooperation of the bidirectional gas path replacement system and the automatic sealing interface, the nitrogen gas replacement efficiency and the operation convenience are significantly improved, the problems of complicated manual operation and easy damage of the interface are effectively solved, the gas tightness requirement is ensured, the damage of the equipment caused by repeated disassembly and assembly is avoided, the process of quick nitrogen gas replacement is realized, and the maintenance efficiency and the use reliability of the night vision device are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a structure diagram of the night vision device capable of quickly replacing nitrogen gas.

[0017] Figure 2 It is a bottom view structure diagram of the night vision device capable of quickly replacing nitrogen gas.

[0018] Figure 3 It is another perspective bottom view structure diagram of the night vision device capable of quickly replacing nitrogen gas.

[0019] Figure 4 It is an unfolded structure diagram of the storage assembly of the night vision device capable of quickly replacing nitrogen gas.

[0020] Figure 5 Night vision device capable of quickly replacing nitrogen Figure 1 Enlarged view of middle A.

[0021] Figure 6 Night vision device capable of quickly replacing nitrogen Figure 4 Enlarged view of middle B.

[0022] In the figure: 1, night vision assembly; 11, fixed support; 12, rotating connecting seat; 13, lens barrel; 2, air guide assembly; 21, first air guide seat; 22, second air guide seat; 3, storage assembly; 31, limiting shell; 32, guide piece; 32-1, guide column; 32-2, guide groove; 33, anti-skid knob; 34, spring limiting piece; 34-1, fixed rod; 34-2, limiting block; 34-3, limiting spring; 34-4, first sliding plate; 35, quick-release check valve; 36, storage shell; 37, connecting piece; 37-1, second sliding plate; 37-2, guide sliding block; 37-3, mounting hole. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the specific details set forth herein without departing from the scope of the present application, and it is understood that the present application is not limited to the particular details described herein.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein can include specific features, structures or characteristics contained in at least one implementation of the present application. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0026] Embodiment 1

[0027] Reference Figure 1 and Figure 2 As the first embodiment of the present application, the embodiment provides a night vision device capable of quickly replacing nitrogen. The night vision device capable of quickly replacing nitrogen comprises a night vision assembly 1 and an air guide assembly 2.

[0028] The nitrogen replacement efficiency and operation convenience are improved obviously through the cooperation of the bidirectional gas replacement system and the automatic sealing interface, the problems of complicated manual operation and damaged interface are solved effectively, the air tightness requirement is ensured, the equipment damage caused by repeated disassembly and assembly is avoided, the process of rapid nitrogen replacement is realized, and the maintenance efficiency and use reliability of the night vision instrument are improved greatly

[0029] Specifically, the night vision assembly 1 comprises a fixed support 11, one side of the fixed support 11 is rotationally connected with a rotary connecting seat 12, and the rotary connecting seat 12 is fixed with a lens barrel 13 away from the fixed support 11.

[0030] Specifically, the gas guide assembly 2 is arranged on the surface of the night vision assembly 1 and comprises a first gas guide seat 21 embedded on one side of the lens barrel 13.

[0031] The first gas guide seat 21 and the first gas guide seat 21 are provided with a communication gas channel, and the gas flow direction in the gas channel is not limited and can flow to either side.

[0032] Embodiment 2

[0033] Reference Figures 2-6 As the second embodiment of the utility model, the embodiment is based on the previous embodiment.

[0034] Specifically, the top of the fixed support 11 is provided with a storage assembly 3.

[0035] Specifically, the storage assembly 3 comprises a limiting shell 31 movably connected to the top of the fixed support 11, a spring limiting piece 34 fixed to one side of the limiting shell 31, and a connecting piece 37 fixed to the other side of the limiting shell 31.

[0036] Specifically, the storage assembly 3 further comprises a storage shell 36 embedded on the top of the fixed support 11, a quick-release one-way valve 35 movably connected in the inner cavity of the storage shell 36, and a guide piece 32 movably connected to the inner wall of the connecting piece 37.

[0037] The quick-release one-way valve 35 can control the entry and exit of gas in one direction, avoiding the pollution of the environment by external gas during the replacement of nitrogen.

[0038] Specifically, the guide piece 32 comprises a guide column 32-1 fixed to the top of the fixed support 11, and a guide groove 32-2 is formed in the surface of the guide column 32-1.

[0039] Specifically, the connecting piece 37 comprises a second sliding plate 37-1 fixed to the surface of the limiting shell 31, an installation hole 37-3 is formed in the top of the second sliding plate 37-1, and a guide sliding block 37-2 matched with the guide groove 32-2 is fixed to the inner wall of the installation hole 37-3.

[0040] The guide sliding block 37-2 can play a good guiding effect during the movement of the second sliding plate 37-1 by cooperating with the guide groove 32-2.

[0041] Specifically, the spring limiting piece 34 includes a fixed rod 34-1 fixed to the top of the fixed support 11, a limiting block 34-2 fixed to the top of the fixed rod 34-1, a limiting spring 34-3 sleeved on the surface of the fixed rod 34-1, and a first sliding plate 34-4 sleeved on the fixed rod 34-1 and fixed to one side of the limiting shell 31.

[0042] The limiting spring 34-3 can generate elastic force by restoring deformation, so as to drive the limiting shell 31 to move through the first sliding plate 34-4.

[0043] Specifically, the top of the limiting shell 31 is fixed with an anti-skid knob 33.

[0044] The anti-skid knob 33 can effectively increase the friction between it and the user's hand, thereby facilitating the user to hold it.

[0045] In use, when nitrogen replacement is needed, the user first selects the corresponding gas inlet end and gas outlet end according to the first gas guide seat 21 and the second gas guide seat 22, connects the one-way nitrogen gas into the gas inlet end, and then fixes and installs the corresponding quick-release one-way valve 35 on the gas outlet end through threaded connection, and then injects an appropriate amount of nitrogen gas through the gas inlet end, so as to replace other gases in the internal space by means of nitrogen gas extrusion, thereby achieving the effect of one-way injection to replace nitrogen gas, and the specific operation is as follows.

[0046] The user first manually pulls the anti-skid knob 33 to pull the limiting shell 31, so that the second sliding plate 37-1 is separated from the surface of the guide column 32-1 and no longer limits the quick-release one-way valve 35, and then the user can remove the quick-release one-way valve 35, and then fix the quick-release one-way valve 35 on the surface of the first gas guide seat 21 or the second gas guide seat 22 through threaded connection, so as to replace nitrogen gas in one direction.

[0047] When the nitrogen replacement is completed, the user can unscrew the quick-release one-way valve 35 and re-insert it into the inner cavity of the storage shell 36, and then manually pull the anti-skid knob 33 to drive the limiting shell 31 to move to a suitable position, so that the second sliding plate 37-1 is re-sleeved on the surface of the guide column 32-1, thereby completing the limiting storage of the quick-release one-way valve 35.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A night vision device capable of rapid nitrogen replacement, characterized in that: The utility model relates to a night vision device, which comprises a fixed support (11), a rotating connecting seat (12) connected to one side of the fixed support (11), a lens barrel (13) fixed to the side of the rotating connecting seat (12) away from the fixed support (11), a gas guiding assembly (2) arranged on the surface of the night vision device (1), and a storage assembly (3) arranged on the top of the fixed support (11). The utility model relates to a night vision device, which comprises a fixed support (11), a rotating connecting seat (12) connected to one side of the fixed support (11), a lens barrel (13) fixed to the side of the rotating connecting seat (12) away from the fixed support (11), a gas guiding assembly (2) arranged on the surface of the night vision device (1), and a storage assembly (3) arranged on the top of the fixed support (11). The top of the fixed support (11) is provided with a storage assembly (3).

2. The nitrogen gas quick replaceable night vision device according to claim 1, wherein: The storage assembly (3) comprises a limiting shell (31) movably connected to the top of the fixed support (11), a spring limiting piece (34) fixed to one side of the limiting shell (31), and a connecting piece (37) fixed to the other side of the limiting shell (31).

3. The rapidly replaceable nitrogen gas night vision device of claim 2, wherein: The storage assembly (3) further comprises a storage shell (36) embedded in the top of the fixed support (11), a quick-release check valve (35) movably connected in the inner cavity of the storage shell (36), and a guide piece (32) movably connected to the inner wall of the connecting piece (37).

4. The rapidly replaceable nitrogen-purged night vision device of claim 3, wherein: The guide piece (32) comprises a guide column (32-1) fixed to the top of the fixed support (11), and a guide groove (32-2) formed in the surface of the guide column (32-1).

5. The rapidly replaceable nitrogen-purged night vision device of claim 4, wherein: The connecting piece (37) comprises a second sliding plate (37-1) fixed to the surface of the limiting shell (31), an installation hole (37-3) formed in the top of the second sliding plate (37-1), and a guide sliding block (37-2) fixed to the inner wall of the installation hole (37-3) and matched with the guide groove (32-2).

6. The rapidly replaceable nitrogen purged night vision device of claim 5, wherein: The spring limiting piece (34) comprises a fixed rod (34-1) fixed to the top of the fixed support (11), a limiting block (34-2) fixed to the top of the fixed rod (34-1), a limiting spring (34-3) sleeved on the surface of the fixed rod (34-1), a first sliding plate (34-4) sleeved on the fixed rod (34-1), and the first sliding plate (34-4) is fixed to one side of the limiting shell (31).

7. The rapidly replaceable nitrogen-purged night vision device of claim 6, wherein: The top of the limiting shell (31) is fixed with an anti-skid knob (33).

8. The rapidly replaceable nitrogen-purged night vision device of claim 7, wherein: ​

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