Micro-oil flame image shooting camera fixing device

Abstract

The utility model relates to a fixing device for a tiny-oil flame image shooting camera. The fixing device comprises a positioning plate, a camera fixing cylinder and four groups of positioning bolts, the camera fixing cylinder is connected to the positioning plate, four sets of threaded holes are formed in the periphery of the camera fixing cylinder in an array mode, and the four sets of positioning bolts are in threaded fit with the four sets of threaded holes respectively. And a clamp for fixing a lens is arranged in the camera fixing cylinder. The camera is fixed in the upper, lower, left and right directions through the four groups of positioning bolts, the lens is fixed through the hoop, and then the space between the lens hole and the lens is filled with the fireproof mud, so that the fixation is firmer, the lens is not displaced under the fixation of the hoop even if the fireproof mud expands with heat and contracts with cold, and the flame can be always shot; and the camera and the lens are respectively fixed by using rigid structures such as bolts and hoops, so that relative displacement between the camera and the lens due to thermal expansion and cold contraction of the fireproof mud is avoided, and abrasion of a threaded connection part between the camera and the lens is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of micro-oil flame shooting equipment, in particular to a micro-oil flame image shooting camera fixing device. Background Art

[0002] The fire detection system is an important part of the furnace safety monitoring system. The reliability of the system is particularly important for the safe operation of the unit. Under the background of increasingly normalized deep peak regulation, boiler stable combustion is the key control object for the safe and stable operation of the unit. In abnormal situations, oil injection for stable combustion is usually the main control method for operators. In this case, the micro-oil flame signal is very important, which can effectively monitor the combustion situation in the furnace.

[0003] At present, when capturing images of micro-oil flames, the camera is fixed in a camera fixing tube by two bolts. The lens hole in the camera fixing tube is filled with fireproof mud between the lens to provide fireproof protection for the lens. However, due to the burning and extinguishing of the flame, the fireproof mud expands and contracts, causing the lens to shift, resulting in a deviation in the shooting position of the lens and failure to capture the flame. The camera position is fixed relatively firmly, but the lens is displaced due to the thermal expansion and contraction of the fireproof mud, resulting in relative displacement between the lens and the camera, causing wear on the threaded connection between the two. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a camera fixing device for shooting images of a micro-oil flame, so as to overcome the deficiencies in the above-mentioned prior art.

[0005] The utility model solves the above-mentioned technical problems with the following technical solutions: a camera fixing device for capturing images of a micro-oil flame, comprising a positioning plate, a camera fixing tube and four groups of positioning bolts; the camera fixing tube is connected to the positioning plate, a lens hole is provided on the positioning plate in the middle of the camera fixing tube, four groups of threaded holes are arranged in a circular array around the camera fixing tube, and the four groups of positioning bolts are respectively threadedly matched with the four groups of threaded holes; a clamp for fixing the lens is arranged in the camera fixing tube, and the clamp is connected to the inner wall of the camera fixing tube through a connecting piece.

[0006] The beneficial effects of the utility model are as follows: the camera is fixed in four directions of up, down, left and right by four groups of positioning bolts, the lens is fixed by a clamp, and then fireproof mud is filled between the lens hole and the lens, so that the fixation is more firm, and even if the fireproof mud expands and contracts due to heat and cold, the lens will not be displaced under the fixation of the clamp, thereby ensuring that the flame can always be photographed, and because the camera and the lens are respectively fixed by rigid structures such as bolts and clamps, there will be no relative displacement between the two due to the thermal expansion and contraction of the fireproof mud, thereby avoiding wear on the threaded connection between the two.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, a first umbrella-shaped gear is sleeved on the outer sleeve of the camera fixing tube, and a second umbrella-shaped gear meshing with the first umbrella-shaped gear is sleeved on each positioning bolt.

[0009] Furthermore, a limiting ring is provided on the outer sleeve of the camera fixing tube, and an annular limiting groove is provided on the upper end face of the limiting ring. The first umbrella-shaped gear is embedded in the annular limiting groove, and the upper end face of the first umbrella-shaped gear is lower than the upper end face of the limiting ring; the positioning bolt includes a bolt head, a connecting rod and a screw rod connected in sequence, and limiting ribs are arranged on the peripheral wall of the connecting rod along its length direction. The cross-section of the middle through hole of the second umbrella-shaped gear matches the cross-sectional shape of the connecting rod, and the second umbrella-shaped gear moves linearly on the connecting rod.

[0010] Furthermore, it also includes a hand crank, which is detachably connected to any one of the bolt heads.

[0011] Furthermore, four groups of positioning holes are arranged on the positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0013] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;

[0014] Figure 3 This is a schematic diagram of the clamp structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the positioning bolt structure of the utility model.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Positioning plate; 11. Positioning hole; 2. Camera fixing tube; 21. Lens hole; 22. Threaded hole; 3. Positioning bolt; 31. Bolt head; 32. Connecting rod; 33. Screw rod; 34. Limiting rib; 4. Clamp; 5. Connecting piece; 6. First umbrella-shaped gear; 7. Second umbrella-shaped gear; 8. Limiting ring; 81. Annular limiting groove; 9. Hand crank. DETAILED DESCRIPTION

[0018] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0019] like Figure 1 to Figure 4As shown, Example 1, a camera fixing device for capturing images of a micro-oil flame, comprises a positioning plate 1, a camera fixing tube 2 and four groups of positioning bolts 3; the camera fixing tube 2 is connected to the positioning plate 1, a lens hole 21 is provided on the positioning plate 1 in the middle of the camera fixing tube 2, four groups of threaded holes 22 are arranged in a circular array around the camera fixing tube 2, and the four groups of positioning bolts 3 are respectively threadedly matched with the four groups of threaded holes 22; a clamp 4 for fixing the lens is provided in the camera fixing tube 2, and the clamp 4 is connected to the inner wall of the camera fixing tube 2 through a connecting piece 5.

[0020] The camera is fixed in four directions of up, down, left and right by four sets of positioning bolts 3, the lens is fixed by a clamp 4, and then fireproof mud is filled between the lens hole 21 and the lens to make the fixation more firm. Even if the fireproof mud expands and contracts due to heat and cold, the lens will not be displaced under the fixation of the clamp 4, ensuring that the flame can always be photographed. Moreover, since the camera and the lens are fixed respectively with rigid structures such as bolts and clamps, there will be no relative displacement between the two due to the thermal expansion and contraction of the fireproof mud, thus avoiding wear on the threaded connection between the two.

[0021] Embodiment 2: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0022] The camera fixing tube 2 is provided with a first umbrella gear 6, and each positioning bolt 3 is provided with a second umbrella gear 7 meshing with the first umbrella gear 6. By adjusting one of the positioning bolts 3, all the bolts can be driven to rotate and screw in and out at the same time, which can ensure that the lens is in the middle of the camera fixing tube 2 and greatly improve the adjustment efficiency.

[0023] In a specific implementation, the camera is placed in a cylindrical metal sleeve, and the central axis of the lens is colinear with the central axis of the metal sleeve.

[0024] Embodiment 3, this embodiment is a further improvement on the basis of embodiment 2, and its details are as follows:

[0025] A limiting ring 8 is provided on the outer sleeve of the camera fixing tube 2, and an annular limiting groove 81 is provided on the upper end surface of the limiting ring 8. The first umbrella-shaped gear 6 is embedded in the annular limiting groove 81, and the upper end surface of the first umbrella-shaped gear 6 is lower than the upper end surface of the limiting ring 8; the positioning bolt 3 includes a bolt head 31, a connecting rod 32 and a screw rod 33 connected in sequence, and a limiting rib 34 is arranged on the peripheral wall of the connecting rod 32 along its length direction. The cross-section of the middle through hole of the second umbrella-shaped gear 7 matches the cross-sectional shape of the connecting rod 32, and the second umbrella-shaped gear 7 moves linearly on the connecting rod 32. When adjusting the positioning bolt 3, the second umbrella gear 7 can always be engaged with the first umbrella gear 6, avoiding the first umbrella gear 6 from disengaging from the second umbrella gear 7 and causing uneven adjustment among the four bolts; when the positioning bolt 3 is screwed in, the positioning bolt 3 moves toward the axial direction of the camera fixing tube 2, and the second umbrella gear 7 always remains engaged with the first umbrella gear 6. The setting of the limiting rib 34 ensures that when the positioning bolt 3 is rotated, it will not affect the engagement of the second umbrella gear 7 with the first umbrella gear 6, and can also drive the rotation of the second umbrella gear 7.

[0026] Embodiment 4: This embodiment is a further improvement on the basis of embodiment 3, and its details are as follows:

[0027] It also includes a hand crank 9, which is detachably connected to any one of the bolt heads 31. The adjustment efficiency can be greatly improved.

[0028] Embodiment 5, this embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0029] The fixing plate is provided with four groups of positioning holes 11 so as to fix the device at the target position by bolts.

[0030] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A camera fixing device for capturing images of a micro-oil flame, characterized in that: The invention comprises a positioning plate (1), a camera fixing tube (2) and four groups of positioning bolts (3); the camera fixing tube (2) is connected to the positioning plate (1); a lens hole (21) is provided on the positioning plate (1) in the middle of the camera fixing tube (2); four groups of threaded holes (22) are arranged in a circular array around the camera fixing tube (2); the four groups of positioning bolts (3) are respectively threadedly matched with the four groups of threaded holes (22); a clamp (4) for fixing the lens is arranged inside the camera fixing tube (2); the clamp (4) is connected to the inner wall of the camera fixing tube (2) through a connecting piece (5).

2. A camera fixing device for capturing images of a micro-oil flame according to claim 1, characterized in that: The camera fixing tube (2) is provided with a first umbrella-shaped gear (6) on its outer sleeve, and each of the positioning bolts (3) is provided with a second umbrella-shaped gear (7) meshing with the first umbrella-shaped gear (6).

3. A camera fixing device for capturing images of a micro-oil flame according to claim 2, characterized in that: The outer sleeve of the camera fixing tube (2) is provided with a limiting ring (8), the upper end surface of the limiting ring (8) is provided with an annular limiting groove (81), the first umbrella-shaped gear (6) is embedded in the annular limiting groove (81), and the upper end surface of the first umbrella-shaped gear (6) is lower than the upper end surface of the limiting ring (8); the positioning bolt (3) comprises a bolt head (31), a connecting rod (32) and a screw rod (33) connected in sequence, the peripheral wall of the connecting rod (32) is provided with limiting convex ribs (34) along its length direction, the cross section of the middle through hole of the second umbrella-shaped gear (7) matches the cross-sectional shape of the connecting rod (32), and the second umbrella-shaped gear (7) moves linearly on the connecting rod (32).

4. A camera fixing device for capturing images of a micro-oil flame according to claim 3, characterized in that: It also comprises a hand crank (9), wherein the hand crank (9) is detachably connected to any one of the bolt heads (31).

5. A camera fixing device for capturing images of a micro-oil flame according to claim 1, characterized in that: Four groups of positioning holes (11) are provided on the positioning plate (1).

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