Portable fiber-optic gyroscope north seeker

Abstract

The utility model relates to the technical field of fiber-optic gyroscope north seekers, and particularly discloses a portable fiber-optic gyroscope north seeker, which comprises a first protective cover, a second protective cover and a fiber-optic gyroscope north seeker main body, the bottom of the fiber-optic gyroscope north seeker body is connected with a supporting plate, two rotating plates are slidably connected into the supporting plate, bottom plates rotationally connected with the rotating plates are arranged at the bottoms of the first protective cover and the second protective cover, the tops and the bottoms of the bottom plates are slidably matched with the inner wall of the supporting plate, and penetrating grooves penetrating through the side wall of the supporting plate are formed in the bottom plates. According to the utility model, the first shield and the second shield are matched to protect the fiber-optic gyroscope north seeker main body, the fan-shaped positioning plate is rotated to be arranged in the first semicircular groove, and then the positioning bolt is screwed into the positioning screw hole, so that the first shield and the second shield are stably butted, the structure is simple, effective protection can be realized, and the service life of the fiber-optic gyroscope north seeker is prolonged. And the placement and protection of the fiber-optic gyroscope north seeker in a main non-working state are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of fiber optic gyro north finders, in particular to a portable fiber optic gyro north finder. Background Art

[0002] The fiber optic gyro north finder uses the gyro principle to measure the earth's rotation angular rate through a fiber optic gyro (FOG), and combines the angle between the gyro and the horizontal plane measured by the accelerometer to obtain the angle between the carrier's baseline and the true north direction through computer calculation. The fiber optic gyro is a new type of all-solid-state gyroscope based on the Sagnac effect. It has the advantages of no mechanical rotating parts, impact resistance, high sensitivity, long life, and low power consumption. The stability of the fiber optic gyro north finder directly affects the accuracy and reliability of the north-seeking results.

[0003] The existing patent announcement number CN208505326U discloses a fiber optic gyro north finder, which includes a fiber optic gyro and a filter. A disassembly plate is fixedly installed on the top outer surface of the fiber optic gyro, and a fingerprint detector is provided on the top outer surface of the disassembly plate near the front end. A fixing box is fixedly installed on the bottom outer surface of the disassembly plate, and a bottom plate is provided on the bottom outer surface of the fixing box. A fixing plate is provided on the front outer surface of the bottom plate near one side. A control panel is provided on the front outer surface of the fixing box, and a connecting pipe is fixedly installed on the inner front outer surface of the control panel. An information board is provided on the top outer surface of the filter, and one side outer surface of the filter An inlet pipe is provided, an outlet pipe is provided on the outer surface of the other side of the filter, an inner wall is provided inside the fiber optic gyroscope, and sound-absorbing cotton is provided on the outer surface of one side of the inner wall, a GPS locator is provided on the outer surface of one side of the inner wall, a latitude detector is provided at the center of the outer surface of the inner bottom end of the fiber optic gyroscope, and the filter is located inside the fiber optic gyroscope; through the set filter, the electromagnetic interference generated by the internal circuit can be well filtered to avoid the influence of electromagnetic interference on the detection of the fiber optic gyroscope, thereby improving the detection accuracy of the fiber optic gyroscope, and better detection can be performed, and the fingerprint detector can be set to unlock by fingerprint.

[0004] When the above-mentioned north finder is in use, the disassembly plate, the fixing box, the bottom plate and other structures play a protective role for the north finder, but when the power is off, the use of the structure is affected, and the protection in movement and the stability in use still need to be improved. In view of the above problems, a portable fiber optic gyro north finder is proposed. Utility Model Content

[0005] The utility model aims to provide a portable fiber optic gyro north finder to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A portable fiber optic gyro north finder comprises a first protective cover, a second protective cover and a fiber optic gyro north finder body;

[0008] The bottom of the fiber optic gyro north finder body is connected to a support plate, two sets of rotating plates are slidably connected inside the support plate, the bottoms of the first shield and the second shield are both provided with a bottom plate rotatably connected to the rotating plate, the top and bottom of the bottom plate are slidably matched with the inner wall of the support plate, and the bottom plate is provided with a through groove that passes through the side wall of the support plate;

[0009] A protrusion is provided on one side of the second shield close to the first shield, a groove corresponding to the protrusion is provided on one side of the first shield, a fan-shaped positioning plate is rotatably connected to the protrusion, a positioning bolt is threadedly connected to the fan-shaped positioning plate, a first semicircular groove for accommodating the fan-shaped positioning plate is provided on the first shield, and a positioning screw hole corresponding to the positioning bolt is provided at the first semicircular groove;

[0010] The second shield is connected with a positioning piece for fixing the positions of the first shield and the second shield after flipping.

[0011] In an optional solution: both sides of the support plate are connected to the outside, both sides of the rotating plate are connected to the limit sliding blocks, and the inner wall of the support plate is provided with a limit sliding groove for the limit sliding block to slide.

[0012] In an optional solution: a second semicircular groove for accommodating a fan-shaped positioning plate is provided on one side of the second shield, the second semicircular groove corresponds to the first semicircular groove, a rubber strip is connected to one side of the first shield, and the rubber strip contacts the second shield away from the first shield.

[0013] In an optional scheme: the positioning member includes a connecting plate, and a storage groove for accommodating the connecting plate is provided on the side plate of the second shield away from the first shield, one end of the storage groove is connected to the outside, and a slot for inserting the connecting plate is provided on the side plate of the first shield away from the second shield, one end of the slot is connected to the outside, one side of the connecting plate is threadedly connected to two groups of limit bolts, one side of the storage groove is connected to the bar hole, and one side of the slot is connected to the rectangular hole.

[0014] In an optional solution: a side of the bolt head of the limiting bolt close to the first protective cover is connected to an anti-slip pad.

[0015] In an optional solution: hinge blocks are installed on the top of the first shield and the second shield, and the hinge blocks are hinged to the handles.

[0016] In an optional solution: the first shield and the second shield are both fixedly connected with gasket strips at the bottom.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The first protective cover and the second protective cover cooperate with each other in the utility model to protect the main body of the fiber optic gyro north finder. The fan-shaped positioning plate is rotated to be placed in the first semicircular groove, and then the positioning bolt is screwed into the positioning screw hole to make the first protective cover and the second protective cover stably docked. The utility model has a simple structure and can play an effective protection role, which is conducive to the placement and protection of the fiber optic gyro north finder when the main body is not in working state.

[0019] After the connection between the first shield and the second shield is released in the utility model, the first shield and the second shield slide away from each other, the rotating plate slides in the supporting plate, and then the rotating connection between the bottom plate and the rotating plate moves out of the supporting plate, and the bottom plate can be rotated, that is, the first shield or the second shield can be flipped over, and then flipped and fixed using a positioning piece, the north finder can be stably placed for work, the first shield and the second shield can increase the contact area with the target placement surface, and at the same time, when opened, it is convenient to place tools inside, which is conducive to the use and stable operation of the north finder. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a schematic diagram of the structure of the first shield and the second shield in the utility model when they are opened for use.

[0022] Figure 3 It is a partial structural schematic diagram of the utility model.

[0023] In the figure: 11, first protective cover; 12, second protective cover; 13, hinge block; 14, handle; 15, cushion strip; 16, support plate; 17, strip hole; 18, rectangular hole; 19, fiber optic gyro north finder body; 20, first semicircular groove; 21, protrusion; 22, fan-shaped positioning plate; 23, positioning bolt; 24, rotating plate; 25, connecting plate; 26, limit bolt; 27, bottom plate; 28, through groove. DETAILED DESCRIPTION

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-Figure 3 In this embodiment, the portable fiber optic gyro north finder includes a first protective cover 11, a second protective cover 12 and a fiber optic gyro north finder body 19; the fiber optic gyro north finder body 19 is an existing structure, including a fiber optic gyro, a light source, a light detector, a signal processing system, a rotating platform and an accelerometer, etc., and this application will not be repeated in detail;

[0027] The bottom of the fiber optic gyro north finder body 19 is connected to the support plate 16, and two groups of rotating plates 24 are slidably connected in the support plate 16. The bottoms of the first protective cover 11 and the second protective cover 12 are both provided with a bottom plate 27 rotatably connected to the rotating plate 24. The top and bottom of the bottom plate 27 are slidably matched with the inner wall of the support plate 16, and the bottom plate 27 is provided with a through groove 28 that passes through the side wall of the support plate 16; the first protective cover 11 and the second protective cover 12 cooperate to protect the fiber optic gyro north finder body 19, which is beneficial to the protection of the north finder when it moves;

[0028] A protrusion 21 is provided on one side of the second shield 12 close to the first shield 11, a groove corresponding to the protrusion 21 is provided on one side of the first shield 11, a fan-shaped positioning plate 22 is rotatably connected to the protrusion 21, a positioning bolt 23 is threadedly connected to the fan-shaped positioning plate 22, a first semicircular groove 20 for accommodating the fan-shaped positioning plate 22 is provided on the first shield 11, and a positioning screw hole corresponding to the positioning bolt 23 is provided at the first semicircular groove 20;

[0029] The second shield 12 is connected with a positioning piece for fixing the positions of the first shield 11 and the second shield 12 after they are flipped over; the first shield 11 and the second shield 12 can play a supporting role after being flipped over, so as to facilitate stable support of the north finder when in use.

[0030] In this embodiment, the first protective cover 11 and the second protective cover 12 cooperate to protect the fiber optic gyro north finder body 19, and the fan-shaped positioning plate 22 is rotated to be placed in the first semicircular groove 20, and then the positioning bolt 23 is screwed into the positioning screw hole to stably connect the first protective cover 11 and the second protective cover 12;

[0031] After the connection between the first protective cover 11 and the second protective cover 12 is released, the first protective cover 11 and the second protective cover 12 slide away from each other, and the rotating plate 24 slides in the supporting plate 16. Then, the rotating connection between the bottom plate 27 and the rotating plate 24 is moved out of the supporting plate 16, and the bottom plate 27 can be rotated, that is, the first protective cover 11 or the second protective cover 12 can be flipped over, and then the flipping is fixed with a positioning piece, and the north finder can be stably placed for operation.

[0032] In another embodiment, both sides of the support plate 16 are connected to the outside, and both sides of the rotating plate 24 are connected to limit sliders, and the inner wall of the support plate 16 is provided with a limit sliding groove for the sliding of the limit sliding groove; when the rotating plate 24 moves in the support plate 16, the limit sliding groove slides in the limit sliding groove to prevent the rotating plate 24 from separating from the support plate 16.

[0033] In another embodiment, a second semicircular groove for accommodating the fan-shaped positioning plate 22 is provided on one side of the second shield 12, and the second semicircular groove corresponds to the first semicircular groove 20. A rubber strip is connected to one side of the first shield 11, and the rubber strip is in contact with the second shield 12 on the side away from the first shield 11.

[0034] The rotatable sector-shaped positioning plate 22 is placed in the first semicircular groove 20 , and then the positioning bolt 23 is screwed into the positioning screw hole to ensure that the first shield 11 and the second shield 12 are stably connected.

[0035] In another embodiment, the positioning member includes a connecting plate 25, a side plate of the second shield 12 away from the first shield 11 is provided with a receiving groove for receiving the connecting plate 25, one end of the receiving groove is communicated with the outside, a side plate of the first shield 11 away from the second shield 12 is provided with a slot for inserting the connecting plate 25, one end of the slot is communicated with the outside, one side of the connecting plate 25 is threadedly connected with two groups of limit bolts 26, one side of the receiving groove is connected with the strip hole 17, and one side of the slot is connected with the rectangular hole 18;

[0036] like Figure 2 As shown, the first shield 11 and the second shield 12 are flipped over and opened, and a set of limit bolts 26 can be taken out, and the connecting plate 25 is pulled out from one side of the storage slot by another set of limit bolts 26, and extended into the slot and inserted, and then the limit bolts 26 are inserted from the rectangular hole 18, which can limit the position of one side of the connecting plate 25 in the slot, and the other side of the connecting plate 25 is limited in the storage slot, so that the first shield 11 and the second shield 12 are in the open position.

[0037] In another embodiment, the bolt head of the limiting bolt 26 is connected to an anti-skid pad on one side close to the first shield 11 ; the limiting bolt 26 is connected to the connecting plate 25 , and the anti-skid pad contacts one side of the first shield 11 or the second shield 12 , thereby reducing the sliding of the connecting plate 25 .

[0038] In another embodiment, hinge blocks 13 are installed on the top of the first protective cover 11 and the second protective cover 12, and the hinge blocks 13 are hinged to a handle 14; the handle 14 is used to facilitate carrying the north finder.

[0039] In another embodiment, the first protective cover 11 and the second protective cover 12 are both fixedly connected to the bottom with a pad 15; when the first protective cover 11 and the second protective cover 12 cooperate to protect the fiber optic gyro north finder body 19, the pad 15 cooperates with the support plate 16 to play a supporting role when placed.

[0040] The working principle of the utility model is: the first protective cover 11 and the second protective cover 12 cooperate to protect the fiber optic gyro north finder body 19, the fan-shaped positioning plate 22 is rotated to be placed in the first semicircular groove 20, and then the positioning bolt 23 is screwed into the positioning screw hole to make the first protective cover 11 and the second protective cover 12 stably docked;

[0041] After the connection between the first shield 11 and the second shield 12 is released, the first shield 11 and the second shield 12 slide away from each other, and the rotating plate 24 slides in the support plate 16. Then, the rotating connection between the bottom plate 27 and the rotating plate 24 is moved out of the support plate 16, and the bottom plate 27 can be rotated, that is, the first shield 11 or the second shield 12 can be flipped, and a set of limiting bolts 26 can be taken out, and the connecting plate 25 is pulled out from one side of the storage slot through another set of limiting bolts 26 to extend into the slot and then inserted into the slot. Then, the limiting bolts 26 are inserted from the rectangular hole 18 to limit the position of one side of the connecting plate 25 in the slot, and the other side of the connecting plate 25 is limited in the storage slot, so that the first shield 11 and the second shield 12 are in the open position, and the north finder can be stably placed for operation.

[0042] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A portable fiber optic gyro north finder, comprising a first protective cover (11), a second protective cover (12) and a fiber optic gyro north finder body (19); Features: The bottom of the fiber optic gyro north finder body (19) is connected to a support plate (16), two groups of rotating plates (24) are slidably connected inside the support plate (16), the bottom of the first protective cover (11) and the bottom of the second protective cover (12) are both provided with a bottom plate (27) rotatably connected to the rotating plate (24), the top and bottom of the bottom plate (27) are slidably matched with the inner wall of the support plate (16), and the bottom plate (27) is provided with a through groove (28) passing through the side wall of the support plate (16); The second shield (12) is provided with a protrusion (21) on one side close to the first shield (11); a groove corresponding to the protrusion (21) is provided on one side of the first shield (11); a fan-shaped positioning plate (22) is rotatably connected to the protrusion (21); a positioning bolt (23) is threadedly connected to the fan-shaped positioning plate (22); a first semicircular groove (20) for accommodating the fan-shaped positioning plate (22) is provided on the first shield (11); and a positioning screw hole corresponding to the positioning bolt (23) is provided at the first semicircular groove (20); The second shield (12) is connected to a positioning piece for fixing the positions of the first shield (11) and the second shield (12) after they are flipped.

2. The portable fiber optic gyro north finder according to claim 1, characterized in that: Both sides of the support plate (16) are in communication with the outside, both sides of the rotating plate (24) are connected to the limit sliding blocks, and the inner wall of the support plate (16) is provided with a limit sliding groove for the limit sliding block to slide.

3. The portable fiber optic gyro north finder according to claim 1, characterized in that: A second semicircular groove for accommodating a fan-shaped positioning plate (22) is provided on one side of the second protective cover (12), the second semicircular groove corresponding to the first semicircular groove (20), a rubber strip is connected to one side of the first protective cover (11), and the rubber strip is in contact with the second protective cover (12) on a side away from the first protective cover (11).

4. The portable fiber optic gyro north finder according to claim 1, characterized in that: The positioning member comprises a connecting plate (25); a receiving groove for receiving the connecting plate (25) is provided on a side plate of the second protective cover (12) away from the first protective cover (11); one end of the receiving groove is connected to the outside; a slot for inserting the connecting plate (25) is provided on a side plate of the first protective cover (11) away from the second protective cover (12); one end of the slot is connected to the outside; one side of the connecting plate (25) is threadedly connected to two groups of limit bolts (26); one side of the receiving groove is connected to the strip hole (17); and one side of the slot is connected to the rectangular hole (18).

5. The portable fiber optic gyro north finder according to claim 4, characterized in that: The side of the bolt head of the limiting bolt (26) close to the first protective cover (11) is connected to the anti-slip pad.

6. The portable fiber optic gyro north finder according to claim 1, characterized in that: A hinge block (13) is installed on the top of each of the first shield (11) and the second shield (12), and the hinge block (13) is hinged to a handle (14).

7. The portable fiber optic gyro north finder according to claim 1, characterized in that: The bottoms of the first protective cover (11) and the second protective cover (12) are both fixedly connected with gasket strips (15).

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