Light reflecting device fixing frame of portable laser velocimeter

Abstract

The utility model discloses a light reflecting device fixing frame of a portable laser velocimeter. According to the technical scheme, the device comprises an n-shaped main frame, a plurality of parallel first transverse supporting rods are arranged on longitudinal rods of the main frame, a pair of second transverse supporting rods are arranged on the transverse rods of the main frame, the angles of the second transverse supporting rods and the transverse rods of the main frame can be adjusted, and a pair of first right-angle frames are arranged at the bottoms of the two longitudinal rods of the main frame in a mirror image mode to enable the two longitudinal rods to be stable. The right-angle positions of the main frames are connected through second right-angle frames, kidney-shaped holes are formed in the main frames, the first transverse supporting rods and the second transverse supporting rods respectively, and the connection relation of different positions is achieved through the kidney-shaped holes and screws. The reflector fixing frame provided by the utility model can realize variable size, is convenient to disassemble, install, carry, store and transport, and can flexibly adjust the placing direction and height of a test instrument.

Description

Technical Field

[0001] The utility model relates to the field of laser tester auxiliary fixation, and particularly relates to a fixing frame for a reflecting device of a portable laser speedometer. Background Art

[0002] During the use of ammunition, the fragment velocity generated by it is one of the important index parameters. At present, the tests of common instruments for testing fragment velocity are almost all obtained through the distance between two points and time, that is, the average velocity of the fragment at the center distance between two targets can be calculated from the time interval for the fragment to pass through two target boards and the distance between the two target boards. The laser transceiver devices of some laser speedometers are the same. Only a reflecting board needs to be set at a certain distance to reflect the light source of the light screen target back to the light outlet position. The fixation of the reflecting board during the outfield test of fragment or projectile velocity needs to be realized by a frame structure. Generally, the frame structure adopts an integral frame structure with a height of about two meters, which cannot be folded or disassembled, and is inconvenient to carry during outfield tests; especially when it is necessary to test the flying velocities of multiple fragments with a certain distribution range, in order to reserve a certain space for the fragments to fly through the light screen target, the reflecting board fixing frame structure needs to be widened and heightened; meanwhile, if the experimental conditions only allow the laser speedometer to be placed from the side, the reflecting board needs to be fixed on the side of the frame. It is time-consuming and laborious to make a reflecting board fixing frame to simultaneously realize widening, heightening and fixing the reflecting board on the side.

[0003] Therefore, it is necessary to design a fixing device that can be conveniently carried, can realize the passing of a large range of fragment groups, and can flexibly adjust the frame size and the mounting position of the reflecting board at the same time. Summary of the Invention

[0004] In view of this, the utility model provides a fixing frame for a reflecting device of a portable laser speedometer, which realizes a reflecting board fixing frame with variable size (widening, heightening or lowering), is convenient to disassemble and install, is convenient to carry, store and transport, and can flexibly adjust the placement orientation and height of the testing instrument, etc.

[0005] In order to achieve the above object, the utility model is realized through the following technical solutions: a fixing frame for a reflecting device of a portable laser speedometer, comprising a U-shaped main frame, and several parallel first transverse support rods are arranged on the longitudinal rods of the main frame; a pair of first right-angle frames are respectively and mirror-symmetrically arranged at the bottoms of the two longitudinal rods of the main frame to make it stable; a pair of second transverse support rods with adjustable angles are arranged on the transverse rod of the main frame.

[0006] Further, the right-angle at which the main frames are connected is connected by a second right-angle frame.

[0007] Further, waist-shaped holes are respectively arranged on the main frame, the first transverse support rod and the second transverse support rod, and different connection relationships are realized through the waist-shaped holes and screws.

[0008] Furthermore, a diagonal steel bar 1 is arranged on the second right-angle frame to form a triangle.

[0009] Furthermore, a diagonal steel bar 2 is arranged on the first right-angle frame to form a triangle.

[0010] Furthermore, the main frame, the first transverse support rod, the second transverse support rod, the first right-angle frame, and the second right-angle frame are respectively angle steels.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1) The connection between the U-shaped main frame of the utility model and the second right-angle frame realizes the function of adjustable size of different support frames.

[0013] 2) A pair of second right-angle frames are arranged at the bottom of the U-shaped of the utility model, making its structure stable.

[0014] 3) The structure of the utility model is used in conjunction with a laser speedometer with an integrated transceiver device, realizing a test method with adjustable vertical direction, side position, different positions and heights, and the laser speed measurement system can be flexibly arranged according to the actual situation on site.

[0015] 4) The utility model is arranged by connecting multiple angle steels, and the installation and disassembly are both convenient and fast, facilitating the carrying, storage and transportation of field tests. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the utility model.

[0017] Figure 2 It is a diagram of the right-angle connection mode of the fixed frame of the laser speedometer reflection device.

[0018] Figure 3 It is a diagram of the fixing mode of the fixed frame of the laser speedometer reflection device in contact with the ground.

[0019] Marking description: 1. Main frame; 2. First transverse support rod; 3. Second transverse support rod; 4. First right-angle frame; 5. Second right-angle frame; 6. Diagonal steel bar 1; 7. Diagonal steel bar 2. Detailed Embodiments

[0020] The following further describes the utility model with reference to the specific embodiment diagrams, but the protection scope of the present invention is not limited thereto.

[0021] Embodiment 1:

[0022] A portable fixing frame for a laser speedometer reflection device is provided, including a U-shaped main frame 1, a first transverse support rod 2, a second transverse support rod 3, a first right-angle frame 4, and a second right-angle frame 5, as Figures 1 - 3As shown in the figure; two parallel transverse support rods 2 are arranged on two longitudinal rods of the main frame 1, and a pair of transverse support rods 3 with adjustable angles are arranged on the transverse rod of the main frame 1; a pair of right-angle brackets 4 are respectively arranged at the bottoms of the two longitudinal rods of the main frame 1 in a mirror image manner to make it stably arranged. The transverse support rod 2 and the transverse support rod 3 of the present utility model are both used to fix the reflector.

[0023] As an implementation manner in this embodiment, the right-angle parts where the main frame 1 is connected are connected by a right-angle bracket 5, and an inclined steel 6 is arranged on the right-angle bracket 5 to form a triangle, so as to make its structure stable.

[0024] The main frame 1 of the present utility model is composed of strip-shaped angle steels to form a rectangular door frame-shaped frame required in practice. The two ends of a straight angle steel with a certain length are vertically connected to two parallel right-angle steels with the same length; at the two right-angle parts of the frame, the strip-shaped angle steels on both sides of each right angle are connected by a right-angle triangle bracket and fixed by screws and nuts; the bottoms of the two parallel and straight-line-shaped angle steels with the same length in the longitudinal direction of the main frame are respectively fixed to two mirror-symmetrical right-angle triangle brackets by screws and nuts, so that the rectangular door frame-shaped frame can stand upright on the ground, wherein the short side of the right-angle triangle bracket is fixed to the strip-shaped angle steel, and the long side is the side in contact with the ground. The connection on each straight line must be fixed by at least two sets of screws and nuts, and the distance between each set of screws and nuts is as long as possible, as Figure 3 shown.

[0025] As an implementation manner in the first embodiment, an inclined steel 7 is arranged on each right-angle bracket 4 to form a triangle, so as to make its structure stable.

[0026] As an implementation manner in the first embodiment, waist-shaped holes are respectively arranged on the main frame 1, the transverse support rod 2 and the transverse support rod 3, and different connection relationships are realized through the waist-shaped holes and screws.

[0027] As an implementation manner in the first embodiment, the main frame 1, the transverse support rod 2, the transverse support rod 3, the right-angle bracket 4 and the right-angle bracket 5 are respectively strip-shaped angle steels.

[0028] The present utility model can increase or decrease the number of strip-shaped angle steels according to actual needs. There are 11 strip-shaped angle steels in this embodiment. Among them, 3 are used to form a rectangular door frame-shaped frame with different sizes according to actual needs, and the remaining 8 are fixed in pairs at different positions and heights on the upper edge and side edge of the rectangular door frame-shaped frame according to actual needs for installing the reflectors of the laser speedometer (the number of reflectors can be installed according to needs); a total of 6 right-angle triangle brackets are required, among which there are four identical right-angle triangle brackets, which are arranged in two pairs in a mirror image at the bottom of the rectangular door frame-shaped frame, and the other pair is arranged at the upper part of the rectangular door frame-shaped frame.

[0029] The main frame, the first transverse rod and the second transverse rod of the utility model are strip-shaped angle steels; the first right-angle frame 4 and the second right-angle frame 5 are right-angle angle steels, and their models are all 30mm * 30mm * 3mm. Screw holes are arranged on both perpendicular surfaces of the angle steel. On one surface, circular holes with a radius of 10mm and long screw holes of 10mm * 30mm are arranged at intervals, and the distance between every two screw holes is 30mm; on the other surface of the angle steel, long screw holes of 10mm * 30mm are arranged, and the hole spacing is 70mm. The screw model is ≤ 7mm.

[0030] Embodiment 2:

[0031] The same as Embodiment 1, except that there are two pairs of the first transverse rods 2.

[0032] Embodiment 3:

[0033] The same as Embodiment 1, except that there are three pairs of the first transverse rods 2.

[0034] The embodiments in the present utility model are only used to illustrate the present utility model and do not constitute a limitation to the scope of the claims. Other substantially equivalent alternatives that can be conceived by those skilled in the art are all within the protection scope of the present utility model.

Claims

1. A portable laser speedometer reflective device fixing bracket, characterized in that: The invention comprises a gate-shaped main frame (1), a plurality of parallel transverse support rods (2) being arranged on the longitudinal rods of the main frame (1); a pair of right-angle brackets (4) are respectively arranged at the bottom of the two longitudinal rods of the main frame (1) in a mirror-like manner to stabilize them; and a pair of transverse support rods (3) are arranged on the transverse rods of the main frame (1) to which the angles thereof are adjustable.

2. A portable laser speedometer reflector fixing bracket according to claim 1, characterized in that: The right angles where the main frames (1) are connected are connected via a second right angle frame (5).

3. A portable laser speed meter reflective device fixing bracket according to claim 1 or 2, characterized in that: The main frame (1), the first transverse support rod (2) and the second transverse support rod (3) are respectively provided with waist-shaped holes, and the connection relationship at different positions is achieved through the waist-shaped holes and screws.

4. A portable laser speedometer reflector fixing bracket according to claim 2, characterized in that: The right angle frame 2 (5) is provided with an inclined steel 1 (6) to form a triangle.

5. A portable laser speedometer reflector fixing bracket according to claim 4, characterized in that: The right angle frame 1 (4) is provided with inclined steel 2 (7) to form a triangle.

6. A portable laser speedometer reflector fixing bracket according to claim 5, characterized in that: The main frame (1), transverse support rod 1 (2), transverse support rod 2 (3), right angle frame 1 (4), and right angle frame 2 (5) are angle steels respectively.

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