Infrared imaging gas leak detector capable of conveniently replacing lens

Abstract

The invention relates to an infrared imaging gas leak detector capable of conveniently replacing a lens, belongs to the technical field of infrared imaging gas leak detection, and solves the problems that a motor exists in the lens, so that the size of the lens cannot be kept small and the cost of the lens is high. The infrared imaging gas leak detector capable of replacing the lens conveniently comprises a machine frame, a lens frame, a focusing device and a clamping device, the machine frame and the mirror frame are connected through a clamping device, the focusing device comprises a power supply component and a focusing execution component, the power supply component is installed in the machine frame, and the focusing execution component is installed in the mirror frame. The motor is integrated in the machine frame, the transmission problem that the motor is installed in the machine frame to focus the lens of the infrared imaging gas leak detector is solved, the motor is installed in the machine frame so that the lens can be kept small and exquisite, meanwhile, one motor can focus different lenses, and the lens cost and the use cost can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of infrared imaging gas leak detection, and particularly to an infrared imaging gas leak detector with a conveniently replaceable lens. Background Art

[0002] An infrared gas leak detector is a device used to detect gas leaks. It uses infrared technology to detect the presence of target gases. This instrument is usually used in industrial environments, such as chemical plants, refineries, natural gas facilities, and other similar places, to ensure safety and avoid environmental damage.

[0003] The working principle of an infrared gas leak detector is based on the characteristic that target gases absorb infrared light. Each gas has its own specific frequency of absorbing infrared light. Therefore, the detection instrument determines the presence of target gases by measuring the attenuation degree of infrared light when passing through the air.

[0004] Infrared imaging gas leak detectors can detect very low concentrations of target gases and respond quickly. Since infrared imaging gas leak detectors are generally used in scenarios such as detecting gas leaks in petrochemical industries, where the usage scenarios are complex and diverse, multiple types of lenses need to be selected. Therefore, higher requirements are put forward for cost control, convenience, and safety when replacing lenses.

[0005] Currently, there are infrared imaging gas leak detectors that use motors installed inside the lenses for focusing. Motors need to be integrated inside lenses of different models for focusing, which will cause the lens size to not be able to remain small and increase the cost of the lenses. Summary of the Invention

[0006] In view of the above analysis, embodiments of the present invention aim to provide an infrared imaging gas leak detector with a conveniently replaceable lens to solve the problems in the background art that the presence of motors inside the lenses causes the lens size to not be able to remain small and the high cost of the lenses.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An infrared imaging gas leak detector with a conveniently replaceable lens includes a machine frame, a lens frame, a focusing device, and a clamping device; the machine frame and the lens frame are connected through the clamping device;

[0009] The focusing device includes a power supply component and a focusing execution component. The power supply component is installed inside the machine frame, and the focusing execution component is installed inside the lens frame.

[0010] Further, the clamping device includes a female clamping component and a male clamping component. The female clamping component is installed on the machine frame, and the male clamping component is installed on the lens frame.

[0011] Furthermore, the power supply member provides power for the focusing of the focusing execution member.

[0012] Furthermore, the power supply member includes a motor, a first gear, a second gear, a gear transmission shaft sleeve, a gear transmission shaft rod, a movement bracket, and a telescopic docking assembly.

[0013] Furthermore, the first gear is installed on one side of the motor, the first gear meshes with the second gear, the second gear is installed on one side of the gear transmission shaft sleeve, and the gear transmission shaft rod is installed on the other side of the gear transmission shaft sleeve.

[0014] Furthermore, the motor is fixedly connected to the movement bracket, and the second gear is rotatably connected to the movement bracket through a first bearing and a first rotating shaft.

[0015] Furthermore, the telescopic docking assembly includes a first spring, a second spring, a lens release button holder, a lens release button, and a lens locking rod.

[0016] Furthermore, the first spring is sleeved outside the gear transmission shaft sleeve, the lens release button holder can drive the gear transmission shaft rod to move along the axis direction of the gear transmission shaft rod, the middle part of the lens release button holder is slidably connected to the first cylindrical rod on the movement bracket, and the lens release button holder can rotate relative to the first cylindrical rod.

[0017] Furthermore, a lens release button is installed on the lens release button holder.

[0018] Furthermore, a lens locking rod is fixed on one side of the lens release button holder, a second spring is sleeved outside the lens locking rod, and one end of the lens locking rod contacts the rod hole in the movement bracket.

[0019] Furthermore, the focusing execution member includes a third gear, a fourth gear ring, a rotation limiting ring, a focusing limiting groove, a lens mounting ring bracket, a sliding column, and a sliding groove.

[0020] Furthermore, the fourth gear ring meshes with the third gear, and the rotation limiting ring is fixed inside the fourth gear ring, and a focusing limiting groove is opened inside the rotation limiting ring.

[0021] Furthermore, an inner ring frame fixedly connected to the lens frame is sleeved inside the rotation limiting ring, a sliding groove is opened inside the inner ring frame, a slidable lens mounting ring bracket is sleeved inside the inner ring frame, a sliding column is installed outside the lens mounting ring bracket, the sliding column passes through the sliding groove and contacts the focusing limiting groove, and the position of the lens mounting ring bracket is adjusted through the sliding groove and the focusing limiting groove.

[0022] Furthermore, the lens mounting ring frame and the sliding column are fixed by bolts.

[0023] At least one of the above technical solutions has the following beneficial effects:

[0024] (1) In the infrared imaging gas leak detector with a conveniently replaceable lens of the present invention, the motor is arranged inside the machine frame, and the transmission problem of focusing the lens of the infrared imaging gas leak detector with the motor installed inside the machine frame is solved. Installing the motor inside the machine frame is beneficial for keeping the lens small and compact. At the same time, one motor can achieve focusing on different lenses, which is beneficial for reducing the lens cost and usage cost;

[0025] (2) When installing the lens in the infrared imaging gas leak detector with a conveniently replaceable lens of the present invention, there is no need to separately dock the power supply component and the focusing execution component. When the clamping female component and the clamping male component are docked, the clamping male component rotates relative to the clamping female component. When the lens locking rod is docked into the hole in the lens frame, the second spring drives the lens locking rod to insert into the hole, and the first spring drives the gear transmission shaft rod to move and dock with the third gear, realizing the automatic docking of the power supply component and the focusing execution component.

[0026] In the present invention, the above technical solutions can also be combined with each other to achieve more preferred combination schemes. Other features and advantages of the present invention will be described in the subsequent specification, and some advantages can be made obvious from the specification or understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the content specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings are only for the purpose of showing specific embodiments and are not considered as limiting the present invention. Throughout the drawings, the same reference numerals represent the same components.

[0028] Figure 1 FIG. 1 is one of the structural schematic diagrams of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0029] Figure 2 FIG. 2 is another structural schematic diagram of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0030] Figure 3 FIG. 3 is the structural schematic diagram of the interior of the machine frame of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0031] Figure 4 FIG. 4 is the structural schematic diagram of the power supply component and the focusing execution component of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0032] Figure 5One of the schematic structural diagrams of the power supply component of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0033] Figure 6 One of the schematic structural diagrams of the power supply component of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0034] Figure 7 Schematic structural diagram of the focusing execution component of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0035] Figure 8 Schematic structural diagram of the chute of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0036] Figure 9 Schematic structural diagram of the fourth gear ring of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0037] Figure 10 Schematic structural diagram of the focusing device of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0038] Figure 11 For Figure 10 Enlarged view of part A in

[0039] Figure 12 Schematic structural diagram of the card and female interface of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0040] Figure 13 Schematic structural diagram of the card and male interface of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0041] Figure 14 Schematic structural diagram of the telescopic docking assembly of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0042] Figure 15 Schematic structural diagram of the movement support of an infrared imaging gas leak detector with a conveniently replaceable lens according to the present invention.

[0043] Reference numerals:

[0044] 1. Frame, 2. Lens frame, 3. Focusing device, 4. Card and device;

[0045] 31. Power supply component, 32. Focusing execution component;

[0046] 3101. Motor, 3102. First gear, 3103. Second gear, 3104. Gear drive shaft sleeve, 3105. First spring, 3106. Gear drive shaft rod, 3107. Lens release button holder, 3108. Lens release button, 3109. Lens locking rod, 3110. Second spring, 3111. Movement support bracket;

[0047] 3201. Third gear, 3202. Fourth gear ring, 3203. Rotation limit ring, 3204. Focus adjustment limit groove, 3205. Lens mounting ring holder, 3206. Sliding column, 3207. Slide groove;

[0048] 41. Clamping female member, 42. Clamping male member. Detailed implementation mode

[0049] The preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. The accompanying drawings form a part of this application and are used together with the embodiments of the present invention to explain the principles of the present invention, rather than to limit the scope of the present invention.

[0050] Embodiment 1

[0051] A specific embodiment of the present invention discloses an infrared imaging gas leak detector with a conveniently replaceable lens, as Figure 1 , Figure 2 and Figure 3 shown, including a machine frame 1, a lens frame 2, a focusing device 3 and a clamping device 4; the machine frame 1 and the lens frame 2 are connected by the clamping device 4;

[0052] As Figure 4 shown, the focusing device 3 includes a power supply member 31 and a focusing execution member 32. The power supply member 31 is installed inside the machine frame 1, and the focusing execution member 32 is installed inside the lens frame 2.

[0053] Preferably, the power supply member 31 can provide power for the focusing of the focusing execution member 32

[0054] The infrared imaging gas leak detector with a conveniently replaceable lens in this embodiment sets the motor 3101 inside the machine frame 1 and solves the transmission problem of focusing the lens of the infrared imaging gas leak detector with the motor 3101 installed inside the machine frame 1. Installing the motor 3101 inside the machine frame 1 is beneficial for keeping the lens small and compact. At the same time, one motor 3101 can achieve focusing on different lenses, which is beneficial for reducing the lens cost and usage cost.

[0055] The frame 1 is the main body of the infrared imaging gas leak detector, and the lens frame 2 is the main body of the lens of the infrared imaging gas leak detector. The lens has an electric focusing function, which is jointly realized by the focusing actuator 32 installed in the lens frame 2 and the power supply member 31 installed in the frame 1. The clamping device 4 is used to connect the frame 1 and the lens frame 2.

[0056] Preferably, as Figure 12 and Figure 13 shown, the clamping device 4 includes a clamping female member and a clamping male member. The clamping female member is installed on the frame 1, and the clamping male member is installed on the lens frame 2.

[0057] The clamping female member and the clamping male member can rotate relative to each other to realize the installation and disassembly between the frame 1 and the lens frame 2.

[0058] Preferably, as Figure 5 and Figure 6 shown, the power supply member 31 includes a motor 3101, a first gear 3102, a second gear 3103, a gear transmission shaft sleeve 3104, a gear transmission shaft rod 3106, a movement support 3111 and a telescopic docking assembly.

[0059] The motor 3101 is used to drive the first gear 3102 to rotate and is a power generating component; the first gear 3102 is used to drive the second gear 3103 to rotate; on one side inside the second gear 3103, there is a D-shaped shaft groove, and one end of the gear transmission shaft sleeve 3104 is a D-shaped rod, and the end of this D-shaped rod is inserted into the D-shaped shaft groove of the second gear 3103. The other side of the gear transmission shaft sleeve 3104 is a D-shaped groove rod.

[0060] One side rod of the gear transmission shaft rod 3106 is D-shaped and is docked with the D-shaped groove rod of the gear transmission shaft sleeve 3104. The gear transmission shaft rod 3106 can slide inside the gear transmission shaft sleeve 3104. On the other side of the gear transmission shaft rod 3106, there is a flat key convex platform, which cooperates with the flat key groove provided in the third gear 3201 to achieve transmission. In the middle of the gear transmission shaft rod 3106, there is a slot that cooperates with the lens release button holder 3107.

[0061] Preferably, as Figure 10 and Figure 11 shown, the first gear 3102 is installed on one side of the motor 3101, the first gear 3102 meshes with the second gear 3103, the second gear 3103 is installed on one side of the gear transmission shaft sleeve 3104, and the gear transmission shaft rod 3106 is installed on the other side of the gear transmission shaft sleeve 3104.

[0062] Preferably, the movement support 3111 is as Figure 15As shown, the motor 3101 is fixedly connected to the movement bracket 3111, and the second gear 3103 is rotatably connected to the movement bracket 3111 through a first bearing and a first rotating shaft.

[0063] Preferably, as Figure 14 shown, the telescopic docking assembly includes a first spring 3105, a second spring 3110, a lens release button holder 3107, a lens release button 3108, and a lens locking rod 3109.

[0064] Preferably, the first spring 3105 is sleeved outside the gear transmission shaft sleeve 3104. The lens release button holder 3107 can drive the gear transmission shaft rod 3106 to move along the axis direction of the gear transmission shaft rod 3106. The middle part of the lens release button holder 3107 is slidably connected to the first cylindrical rod on the movement bracket 3111, and the lens release button holder 3107 can rotate relative to the first cylindrical rod.

[0065] Preferably, a lens release button 3108 is installed on the lens release button holder 3107.

[0066] Preferably, a lens locking rod 3109 is fixed on one side of the lens release button holder 3107. A second spring 3110 is sleeved outside the lens locking rod 3109, and one end of the lens locking rod 3109 contacts the rod hole in the movement bracket 3111.

[0067] In this embodiment, when installing the lens on the infrared imaging gas leak detector that can conveniently replace the lens, there is no need to separately dock the power supply component 31 and the focusing execution component 32. When the clamping male component and the clamping female component are docked, the clamping sub-component rotates relative to the clamping mother component. When the lens locking rod 3109 is docked to the hole in the lens frame 2, the second spring 3110 drives the lens locking rod 3109 to insert into the hole, and the first spring 3105 drives the gear transmission shaft rod 3106 to move and dock with the third gear 3201, realizing the automatic docking of the power supply component 31 and the focusing execution component 32.

[0068] Preferably, as Figure 7 、 Figure 8 and Figure 9 shown, the focusing execution component 32 includes a third gear 3201, a fourth gear ring 3202, a rotation limit ring 3203, a focusing limit groove 3204, a lens mounting ring bracket 3205, a sliding column 3206, and a sliding groove 3207.

[0069] Preferably, the fourth gear ring 3202 meshes with the third gear 3201, and the rotation limit ring 3203 is fixed inside the fourth gear ring 3202, and a focusing limit groove 3204 is formed inside the rotation limit ring 3203.

[0070] Preferably, an inner ring frame fixedly connected to the lens frame 2 is sleeved inside the rotation limiting ring 3203, a sliding groove 3207 is formed inside the inner ring frame, a slidable lens mounting ring frame 3205 is sleeved inside the inner ring frame, a sliding column 3206 is mounted outside the lens mounting ring frame 3205, the sliding column 3206 passes through the sliding groove 3207 and contacts the focusing limiting groove 3204, and the position of the lens mounting ring frame 3205 is adjusted through the sliding groove 3207 and the focusing limiting groove 3204.

[0071] Preferably, the lens mounting ring frame (3205) and the sliding column (3206) are fixed by bolts.

[0072] The focusing principle of the infrared imaging gas leak detector in this embodiment is that the motor 3101 drives the first gear 3102 to rotate, the first gear 3102 drives the second gear 3103 to rotate, the second gear 3103 drives the gear transmission shaft sleeve 3104 to rotate, the gear transmission shaft sleeve 3104 drives the gear transmission shaft rod 3106 to rotate, the gear transmission shaft rod 3106 drives the third gear 3201 to rotate, the third gear 3201 drives the fourth gear ring 3202 to rotate, the fourth gear ring 3202 drives the rotation limiting ring 3203 to rotate, the focusing limiting groove 3204 inside the rotation limiting ring 3203 rotates, the sliding groove 3207 restricts the lens mounting ring frame 3205 to move only forward and backward, and the rotation of the focusing limiting groove 3204 adjusts the front and back positions of the lens mounting ring frame 3205, thereby realizing the focusing of the infrared imaging gas leak detector.

[0073] The lens disassembly principle of the infrared imaging gas leak detector in this embodiment is to press the lens release button 3108. The lens release button 3108 drives the lens release button frame 3107 to move away from the lens. The lens release button frame 3107 drives the gear transmission shaft rod 3106 to move away from the third gear 3201, the connection and transmission between the gear transmission shaft rod 3106 and the third gear 3201 are contacted, and the lens release button frame 3107 drives the lens locking rod 3109 to be withdrawn from the hole in the lens frame 2, so that the clamping female member and the clamping male member can rotate relative to each other, and rotating the lens can separate the lens frame 2 from the machine frame 1, and the disassembly is convenient and simple.

[0074] The lens installation principle of the infrared imaging gas leak detector in this embodiment is to press the lens release button 3108, dock and rotate the clamping female member and the clamping male member, and release the lens release button 3108. When the clamping female member and the clamping male member cannot rotate relative to each other, the installation is completed. When pressing the lens release button 3108, the gear transmission shaft rod 3106 and the lens locking rod 3109 retract into the machine frame 1. After docking and rotating the clamping female member and the clamping male member and then releasing, during the process of the mutual rotation of the machine frame 1 and the lens frame 2, when the position of the lens locking rod 3109 corresponds to the hole in the lens frame 2, under the action of the first spring 3105 and the second spring 3110, the gear transmission shaft rod 3106 and the lens locking rod 3109 protrude. The lens locking rod 3109 enters the hole in the lens frame 2 to limit the rotation between the machine frame 1 and the lens frame 2. The gear transmission shaft rod 3106 is docked with the third gear 3201 to achieve the transmission docking between the power supply member 31 and the focusing execution member 32. That is, in this embodiment, the automatic docking of the power supply member 31 and the focusing execution member 32 is realized. Using this infrared imaging gas leak detector is simple and convenient, and there is no need to separately dock the power supply member 31 and the focusing execution member 32.

[0075] As mentioned above, the above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An infrared imaging gas leak detector with a conveniently replaceable lens, characterized in that, It includes a frame (1), a lens frame (2), a focusing device (3) and a clamping device (4); the frame (1) is connected to the lens frame (2) through the clamping device (4). The focusing device (3) includes a power supply member (31) and a focusing execution member (32). The power supply member (31) is installed inside the frame (1), and the focusing execution member (32) is installed inside the lens frame (2).

2. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 1, characterized in that, The clamping device (4) includes a female clamping member (41) and a male clamping member (42).

3. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 2, characterized in that, The female clamping member (41) is installed on the frame (1), and the male clamping member (42) is installed on the lens frame (2).

4. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 1, characterized in that, The focusing execution member (32) includes a third gear (3201), a fourth gear ring (3202), a rotation limiting ring (3203), a focusing limiting groove (3204), a lens mounting ring frame (3205), a sliding column (3206) and a sliding groove (3207).

5. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 4, characterized in that, The fourth gear ring (3202) meshes with the third gear (3201), and the rotation limiting ring (3203) is fixed inside the fourth gear ring (3202), and the focusing limiting groove (3204) is formed inside the rotation limiting ring (3203).

6. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 5, characterized in that, An inner ring frame fixedly connected to the lens frame (2) is sleeved inside the rotation limiting ring (3203), and a sliding groove (3207) is formed inside the inner ring frame.

7. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 6, characterized in that, A slidable lens mounting ring frame (3205) is sleeved inside the inner ring frame. A sliding column (3206) is installed outside the lens mounting ring frame (3205), and the sliding column (3206) passes through the sliding groove (3207) and contacts the focusing limiting groove (3204).

8. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 7, characterized in that, The position of the lens mounting ring frame (3205) is adjusted through the sliding groove (3207) and the focusing limiting groove (3204).

9. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 8, characterized in that, The lens mounting ring frame (3205) and the sliding column (3206) are fixed by bolts.

10. The infrared imaging gas leak detector with a conveniently replaceable lens according to claim 9, characterized in that, The power supply member (31) can provide power for the focusing of the focusing execution member (32).

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